A portable protective fence for electric power construction

Abstract

The present invention belongs to the technical field of road construction facilities, and specifically relates to a portable guardrail for electric power construction, comprising a placement box, a plurality of connecting vertical poles and a plurality of folding brackets, wherein a cavity is arranged inside the placement box, an opening is arranged on the right side of the placement box, support wheels are arranged on the left front side, the right front side, the left rear side and the right rear side of the bottom end of the placement box, and a transverse strip through hole is arranged on the bottom surface of the placement box; the folding bracket is arranged at intervals from the connecting vertical poles. The present invention mainly solves the problem that the existing guardrail for electric power construction cannot change the placement shape and is inconvenient to carry and place, and has the characteristics of simple structure, easy folding and reliable use.

Description

Technical Field

[0001] The invention belongs to the technical field of road construction facilities, and in particular relates to a portable guardrail for electric power construction. Background Art

[0002] During power repair or power construction, it is necessary to place guardrails around the construction site to prevent outsiders from entering the construction area and causing danger. Guardrails for power construction have been widely used in the field of power construction.

[0003] However, although the existing guardrails for power construction have a folding structure, they cannot be stored, which often leads to the occupation of a large construction site. For example, a Chinese invention patent with announcement number CN 106245990B discloses a guardrail for power construction, including a fence post a; a movable rod positioning block a is arranged on the upper part of one side of the fence post a; another movable rod positioning block a is arranged on the lower part of one side of the fence post a; the other side of the movable rod positioning block a on the upper part of the side of the fence post a is connected to the movable rod a; the other side of the movable rod positioning block a on the lower part of the side of the fence post a is connected to the movable rod b; the other end of the movable rod a is connected to the movable rod d; the other end of the movable rod b is connected to the movable rod c; the other end of the movable rod d is connected to one side of the movable rod positioning block b; the other side of the movable rod positioning block b is arranged on the fence post b; another movable rod positioning block b is arranged on the lower part of one side of the fence post b; the other side of the movable positioning block b at the lower part of one side of the fence post b is connected to one end of the movable rod c. The movable rods a, b, c and d are connected by pins and hydraulic telescopic means, so that the movable rods can be folded, and the electric safety fence can be automatically extended and retracted. However, the overall space occupied is still large, which is inconvenient to carry and place, and can only be placed in a straight line, resulting in low reliability. Summary of the invention

[0004] The purpose of the present invention is to provide a portable guardrail for electric power construction, which mainly solves the problem that the existing guardrail for electric power construction cannot change the placement shape and is inconvenient to carry and place.

[0005] In order to achieve the above-mentioned purpose, the present invention designs a portable guardrail for electric power construction, comprising a placement box, a plurality of connecting vertical rods and a plurality of folding brackets, wherein a cavity is arranged inside the placement box, an opening is arranged on the right side of the placement box, support wheels are arranged on the left front side, the right front side, the left rear side and the right rear side of the bottom end of the placement box, and a horizontal strip through hole is arranged on the bottom surface of the placement box;

[0006] The folding bracket and the connecting vertical rod are arranged at intervals;

[0007] The top end of the connecting vertical rod is provided with a top plate, the bottom end of the connecting vertical rod is provided with a bottom plate, the connecting vertical rod passes through the bottom plate and extends out of the bottom plate to form an extended end, the bottom end of the extended end is provided with a supporting foot, the front side and the rear side of the bottom end of the supporting foot are provided with rollers, the upper part of the connecting vertical rod is sleeved with a first upper sliding ring and a second upper sliding ring, and the second upper sliding ring is close to the top of the first upper sliding ring; the lower part of the connecting vertical rod is sleeved with a first lower sliding ring and a second lower sliding ring, and the second lower sliding ring is close to the top of the first lower sliding ring;

[0008] The folding bracket includes a first frame body and a second frame body which are hinged to each other, the first frame body extends from the upper left to the lower right, and the second frame body extends from the upper right to the lower left;

[0009] The top of the first frame at the far left is provided with a first connecting block hinged to the first frame at the far left, and the bottom end of the second frame at the far left is provided with a second connecting block hinged to the second frame at the far left; the bottom end of the first frame at the far left is hinged to the first lower sliding ring on the right side connecting vertical rod of the first frame at the far left, and the top of the second frame at the far left is hinged to the first upper sliding ring on the right side connecting vertical rod of the first frame at the far left; the tops of the remaining first frames are hinged to the second upper sliding ring on the left side connecting vertical rod of the remaining first frames, and are hinged to the first lower sliding ring on the right side connecting vertical rod of the remaining first frames; the bottom ends of the remaining second frames are hinged to the second lower sliding ring on the left side connecting vertical rod of the remaining second frames, and are hinged to the first upper sliding ring on the right side connecting vertical rod of the remaining second frames;

[0010] A slide groove extending in the vertical direction is provided on the upper part of the left inner wall of the placement box, a slider is provided in the slide groove, the leftmost first connecting block is fixedly connected to the slider, and the leftmost second connecting block is fixedly connected to the inner wall of the left side wall of the placement box.

[0011] Preferably, a limiting groove extending in the left-right direction is provided on the inner top wall of the cavity, and a limiting block is provided on the top of the top plate. The width of the limiting block matches the width of the limiting groove, and the limiting block can slide into the limiting groove.

[0012] Preferably, an upper stop ring and a lower stop ring are also sleeved on the connecting vertical rod, the upper stop ring is located below the first upper sliding ring, and the lower stop ring is located above the second lower sliding ring; by setting the upper stop ring and the lower stop ring, the upper sliding ring and the lower sliding ring can be limited to prevent the folding bracket from stretching too long.

[0013] Preferably, a baffle is provided at the opening position of the right end of the placement box, and the baffle is detachably installed at the right end of the placement box; the baffle can be used to close the right end of the placement box after the connecting vertical rod and the folding bracket are all placed in the placement box, so as to facilitate carrying.

[0014] Preferably, the first upper sliding ring, the second upper sliding ring, the first lower sliding ring and the second lower sliding ring are all provided with fastening screw holes, and fastening screws are threaded in the fastening screw holes; the positions of the upper sliding ring and the lower sliding ring can be fixed by the fastening screws during use, so that the folding bracket maintains a certain shape.

[0015] Preferably, the width of the top plate and the bottom plate are both smaller than the width of the cavity to ensure that the connecting device can be introduced into the placement box.

[0016] Preferably, a push-pull handle is provided at the top of the left end of the placement box, and the placement box can be pushed conveniently by the push-pull handle.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The portable guardrail for electric power construction can place the connecting vertical rods and folding brackets in the placement box, saving space and making it easy to carry and place. When needed, just pull out multiple sets of connecting vertical rods and folding brackets from the cavity;

[0019] 2. The portable electric power construction guardrail can turn the folding bracket by connecting the upper sliding ring and the lower sliding ring on the vertical rod, so that the placement shape can be changed according to actual conditions, thereby improving the reliability of use.

[0020] The invention has the characteristics of simple structure, convenient folding and reliable use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the portable electric power construction protection fence of the present invention;

[0022] Figure 2 yes Figure 1 A schematic diagram of the structure of the folding bracket after being bent;

[0023] Figure 3 is a schematic diagram of the three-dimensional structure of the placement box;

[0024] Figure 4 It is a schematic diagram of the connection structure connecting the vertical rod and the folding bracket. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited thereto.

[0026] Example 1

[0027] See also Figure 1-4A portable guardrail for electric power construction includes a storage box 1, a plurality of connecting vertical rods 8 and a plurality of folding brackets 2. The storage box 1 is provided with a cavity inside, an opening is provided on the right side of the storage box 1, support wheels 4 are provided on the left front side, the right front side, the left rear side and the right rear side of the bottom end of the storage box 1, and a horizontal strip through hole 5 is provided on the bottom surface of the storage box 1;

[0028] The folding bracket 2 is spaced apart from the connecting vertical rod 8;

[0029] The top of the connecting vertical rod 8 is provided with a top plate 7, the bottom of the connecting vertical rod 8 is provided with a bottom plate 6, the connecting vertical rod 8 passes through the bottom plate 6 and extends out of the bottom plate 6 to form an extended end 81, the bottom of the extended end 81 is provided with a supporting foot 9 (that is, the bottom plate 6 and the supporting foot 9 are between the extended end 81), and the front and rear sides of the bottom of the supporting foot 9 are provided with rollers 10, the upper part of the connecting vertical rod 8 is sleeved with a first upper sliding ring 11 and a second upper sliding ring 12, and the second upper sliding ring 12 is close to the top of the first upper sliding ring 11; the lower part of the connecting vertical rod 8 is sleeved with a first lower sliding ring 13 and a second lower sliding ring 14, and the second lower sliding ring 14 is close to the top of the first lower sliding ring 13;

[0030] The folding bracket 2 includes a first frame body and a second frame body that are hinged to each other, the first frame body extends from the upper left to the lower right, and the second frame body extends from the upper right to the lower left;

[0031] The top of the first frame at the far left is provided with a first connecting block (not marked in the figure) hinged to the first frame at the far left, and the bottom end of the second frame at the far left is provided with a second connecting block (not marked in the figure) hinged to the second frame at the far left; the bottom end of the first frame at the far left is hinged to the first lower sliding ring 13 on the right side connecting vertical rod 8 of the first frame at the far left, and the top of the second frame at the far left is hinged to the first upper sliding ring 11 on the right side connecting vertical rod 8 of the second frame at the far left; the top ends of the remaining first frames are hinged to the second upper sliding ring 12 on the left side connecting vertical rod 8 of the remaining first frames, and are hinged to the first lower sliding ring 13 on the right side connecting vertical rod 8 of the remaining first frames; the bottom ends of the remaining second frames are hinged to the second lower sliding ring 14 on the left side connecting vertical rod 8 of the remaining second frames, and are hinged to the first upper sliding ring 11 on the right side connecting vertical rod 8 of the remaining second frames;

[0032] The upper part of the left inner wall of the placement box 1 is provided with a slide groove 21 extending in the vertical direction, and a slider 22 is provided in the slide groove 21. The leftmost first connection block is fixedly connected to the slider 22 (welded in this example), and the leftmost second connection block is fixedly connected to the inner wall of the left side wall of the placement box 1 (welded in this example). When the connecting vertical rod 8 and the folding bracket 2 are placed in the placement box 1, the first connection block moves upward along with the slide groove 21, so that the folding bracket 2 on the left side can be folded;

[0033] When the guardrail is not in use, the connecting vertical rods 8 and the folding brackets 2 can be placed in the placement box 1 to save space and facilitate carrying and placement. When needed, multiple sets of connecting vertical rods 8 and folding brackets 2 only need to be pulled out of the cavity; through the cooperation of the upper sliding ring and the lower sliding ring set on the connecting vertical rod 8, the connecting device can be turned, so that the placement shape can be changed according to actual conditions, thereby improving the reliability of use.

[0034] A limiting groove 15 extending in the left-right direction is provided on the inner top wall of the cavity, and a square limiting block 16 is provided on the top of the top plate 7. The width of the square limiting block 16 matches the width of the limiting groove 15, and the square limiting block 16 can slide into the limiting groove 15; the square limiting block 16 slides in the limiting groove 15, so that the connecting vertical rod 8 can be kept neat when sliding into the cavity, and the connecting vertical rod 8 in the placement box 1 can be limited and fixed. When the connecting vertical rod 8 slides into the cavity, the extending end 81 of the connecting vertical rod 8 slides into the strip through hole 5, and at this time, the bottom end of the bottom plate 6 contacts the inner bottom wall of the cavity; the inner bottom wall of the placement box 1 can support the bottom plate 6.

[0035] The connecting vertical rod 8 is also provided with an upper stop ring 23 and a lower stop ring 24, wherein the upper stop ring 23 is located below the first upper sliding ring 11, and the lower stop ring 24 is located above the second lower sliding ring 14; by providing the upper stop ring 23 and the lower stop ring 24, the upper sliding ring and the lower sliding ring can be limited to prevent the folding bracket 2 from stretching too long.

[0036] A baffle can also be set at the opening position of the right end of the placement box 1, and the baffle can be detachably installed on the right end of the placement box 1; the baffle can be used to close the right end of the placement box 1 after the connecting vertical rod 8 and the folding bracket 2 are all placed in the placement box 1, so as to facilitate carrying.

[0037] The first upper sliding ring 11, the second upper sliding ring 12, the first lower sliding ring 13 and the second lower sliding ring 14 are all provided with fastening screw holes, and fastening screws are threadedly installed in the fastening screw holes; the positions of the upper sliding ring and the lower sliding ring can be fixed by the fastening screws during use, so that the folding bracket 2 maintains a certain shape.

[0038] The widths of the top plate 7 and the bottom plate 6 are both smaller than the width of the cavity to ensure that the connecting device can be introduced into the placement box 1 .

[0039] A push-pull handle 19 is provided at the top of the left end of the placement box 1, and the push-pull handle 19 facilitates the placement box 1 to be pushed.

[0040] When not in use, several connecting vertical rods 8 and several folding brackets 2 can be placed in the placement box 1 to save space. When needed, several connecting vertical rods 8 and several folding brackets 2 only need to be pulled out from the cavity; through the sliding cooperation between the connecting vertical rods 8 and the upper sliding ring and the lower sliding ring, the steering of adjacent folding brackets 2 can be achieved, so that the placement shape can be changed according to actual conditions, and the reliability of use can be improved. The square limit block 16 slides in the limit groove 15, so that the connecting vertical rod 8 remains neat when sliding into the cavity, and the connecting vertical rod 8 in the placement box 1 can be limited and reinforced. When the connecting vertical rod 8 slides into the cavity, the bottom end of the bottom plate 6 contacts the inner bottom wall of the cavity, and the inner bottom wall of the placement box 1 can support the bottom plate 6.

[0041] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions and positional relationships based on the directions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0042] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable guardrail for electric power construction, characterized in that: It comprises a storage box, a plurality of connecting vertical rods and a plurality of folding brackets, wherein a cavity is arranged inside the storage box, an opening is arranged on the right side of the storage box, support wheels are arranged on the left front side, the right front side, the left rear side and the right rear side of the bottom end of the storage box, and a horizontal strip through hole is arranged on the bottom surface of the storage box; The folding bracket and the connecting vertical rod are arranged at intervals; The top end of the connecting vertical rod is provided with a top plate, the bottom end of the connecting vertical rod is provided with a bottom plate, the connecting vertical rod passes through the bottom plate and extends out of the bottom plate to form an extended end, the bottom end of the extended end is provided with a supporting foot, the front side and the rear side of the bottom end of the supporting foot are provided with rollers, the upper part of the connecting vertical rod is sleeved with a first upper sliding ring and a second upper sliding ring, and the second upper sliding ring is close to the top of the first upper sliding ring; the lower part of the connecting vertical rod is sleeved with a first lower sliding ring and a second lower sliding ring, and the second lower sliding ring is close to the top of the first lower sliding ring; The folding bracket includes a first frame body and a second frame body which are hinged to each other, the first frame body extends from the upper left to the lower right, and the second frame body extends from the upper right to the lower left; The top of the first frame at the far left is provided with a first connecting block hinged to the first frame at the far left, and the bottom end of the second frame at the far left is provided with a second connecting block hinged to the second frame at the far left; the bottom end of the first frame at the far left is hinged to the first lower sliding ring on the right side connecting vertical rod of the first frame at the far left, and the top of the second frame at the far left is hinged to the first upper sliding ring on the right side connecting vertical rod of the first frame at the far left; the tops of the remaining first frames are hinged to the second upper sliding ring on the left side connecting vertical rod of the remaining first frames, and are hinged to the first lower sliding ring on the right side connecting vertical rod of the remaining first frames; the bottom ends of the remaining second frames are hinged to the second lower sliding ring on the left side connecting vertical rod of the remaining second frames, and are hinged to the first upper sliding ring on the right side connecting vertical rod of the remaining second frames; A slide groove extending in the vertical direction is provided on the upper part of the left inner wall of the placement box, a slider is provided in the slide groove, a first connecting block at the leftmost end is fixedly connected to the slider, and a second connecting block at the leftmost end is fixedly connected to the inner wall of the left side wall of the placement box; The connecting vertical rod is also sleeved with an upper gear ring and a lower gear ring, the upper gear ring is located below the first upper sliding ring, and the lower gear ring is located above the second lower sliding ring; The first upper sliding ring, the second upper sliding ring, the first lower sliding ring and the second lower sliding ring are all provided with fastening screw holes, and fastening screws are threadedly installed in the fastening screw holes.

2. The portable electric power construction protection fence according to claim 1, characterized in that: A limiting groove extending in the left-right direction is arranged on the inner top wall of the cavity, and a limiting block is arranged on the top end of the top plate. The width of the limiting block matches the width of the limiting groove, and the limiting block can slide into the limiting groove.

3. The portable electric power construction protection fence according to claim 1, characterized in that: A baffle is also provided at the opening position of the right end of the placement box, and the baffle is detachably installed at the right end of the placement box.

4. The portable electric power construction protection fence according to claim 1, characterized in that: The widths of the top plate and the bottom plate are both smaller than the width of the cavity.

5. The portable electric power construction protection fence according to claim 1, characterized in that: A push-pull handle is arranged on the top of the left end of the placement box.

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