Movable support frame of line operation and maintenance equipment

Abstract

The utility model provides a movable support frame of line operation and maintenance equipment, which comprises a support frame bottom plate and a support column, four corners of the support frame bottom plate are provided with hollows, the support column is internally hollow, the support column is arranged at the hollows of the support frame bottom plate, and the inside of the support column is communicated with the outside through the hollows. Universal wheels and universal wheel adjusting assemblies are arranged in the supporting columns. According to the movable supporting frame of the line operation and maintenance equipment, through ingenious arrangement of the sliding grooves and the cylindrical protruding blocks, extending and retracting of the universal wheels can be conveniently completed when the rotating blocks are arranged in a rotating mode, the universal wheels extend out and are moved when needing to be moved, the universal wheels are retracted when needing to be fixed, and the bottom plate makes contact with the ground; the stability of the supporting frame is guaranteed, and switching is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of support frames, in particular to a mobile support frame for line operation and maintenance equipment. Background Art

[0002] Line parameter measurement refers to the use of professional instruments to test the power lines after cutting and splicing to obtain a series of characteristic parameters such as insulation, impedance, and capacitance of the lines, providing a scientific basis for daily operation and maintenance. The auxiliary parameter measurement tools needed need to use mobile support frames to reach various line parameter measurement sites. Most of the existing mobile support frames achieve movement by installing reverse wheels at the bottom, but the installation of universal wheels will inevitably reduce the stability of the support frame.

[0003] As disclosed in publication number CN212359216U, "A formwork support frame that is easy to move" includes a support frame body, a fixed frame is clamped at the bottom of the support frame body, movable rods are movably connected to the left and right sides inside the fixed frame, the bottom end of the movable rod is fixedly connected to a threaded sleeve, and the inner surface of the bottom of the threaded sleeve is threadedly connected to a threaded base, a roller is provided at the bottom of the fixed frame, a spring is provided on the outer surface of the movable rod and located at the bottom of the fixed frame, a first limiting hole is opened on the inner surface of the movable rod, and a first limiting rod is clamped inside the first limiting hole.

[0004] The above patent uses a limit rod and a limit hole to complete the installation and disassembly of the threaded base, so as to avoid the influence of the universal wheel on the stability of the support frame. However, when it needs to be transferred between multiple locations, repeated installation and disassembly are too troublesome.

[0005] This case was created to solve the above problems. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] The purpose of the utility model is to provide a mobile support frame for line operation and maintenance equipment to solve the problems raised in the above background technology.

[0008] (II) Technical solution

[0009] To achieve the above objectives, the utility model is implemented through the following technical solutions: a mobile support frame for line operation and maintenance equipment, including a support frame bottom plate and a support column, the four corners of the support frame bottom plate are hollowed out, the support column is hollow inside, the support column is arranged in the hollow part of the support frame bottom plate, the inside of the support column is communicated with the outside world through the hollow part, and a universal wheel and a universal wheel adjustment assembly are arranged inside the support column.

[0010] Preferably, the universal wheel adjustment assembly includes a limit block, which is fixed in the support column and has a certain distance from the lower end of the support column, the distance is equal to the height of the universal wheel, the limit block is provided with a limit groove running through from top to bottom, the limit groove is slidably connected with a limit column, the lower end of the limit column is connected to the universal wheel, the upper end of the limit column is fixed with a limit tube, the upper end of the limit tube is open, the inside is hollow and a positioning column is provided inside, and the lower end of the positioning column is fixed at the center of the top surface of the limit column.

[0011] Preferably, the universal wheel adjustment assembly also includes a rotating column, a small hole is opened on the bottom surface of the rotating column, the small hole is consistent with the size of the positioning column, the lower end of the rotating column is inserted into the limiting tube, the positioning column is inserted into the rotating column through the small hole, and the diameter of the rotating column is equal to the inner diameter of the limiting tube.

[0012] Preferably, the rotating column is partially inserted into the limiting tube, and a sliding groove is provided on the outer wall of the part of the rotating column inserted into the limiting tube. The sliding groove surrounds the part of the rotating column inserted into the limiting tube, and the sliding groove is arranged in sequence into an upper sliding section, a flat section one, a lower sliding section, and a flat section two.

[0013] Preferably, a cylindrical protrusion is fixedly provided on the inner wall of the limiting tube, the cylindrical protrusion is slidably connected to the sliding groove, and the diameter of the cylindrical protrusion is equal to the width of the sliding groove.

[0014] Preferably, the upper end of the rotating column extends out of the supporting column, the upper end of the rotating column is provided with a rotating block, and the upper end of the rotating column and the upper end surface of the supporting frame are provided with a limiting ring.

[0015] (III) Beneficial effects

[0016] After adopting the above technical scheme, the utility model has the following advantages compared with the prior art: the utility model provides a mobile support frame for line operation and maintenance equipment, which can conveniently complete the extension and retraction of the universal wheel when the rotating block is rotated through the ingenious arrangement of the slide groove and the cylindrical protrusion. When it is necessary to move, the universal wheel is extended and moved, and when it is necessary to fix, the universal wheel is retracted, so that the bottom plate is in contact with the ground, thereby ensuring the stability of the support frame and facilitating switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a bottom schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the interior of the support column of the utility model;

[0020] Figure 4 This is a schematic diagram of the disassembly of the universal wheel adjustment assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the chute style;

[0022] In the figure: 1 support frame bottom plate, 2 support column, 3 universal wheel, 4 limit block, 5 limit column, 6 limit tube, 7 positioning column, 8 rotating column, 9 slide groove, 91 upper slide section, 92 flat section 1, 93 lower slide section, 94 flat section 2, 10 cylindrical protrusion, 11 rotating block, 12 limit, 13 limit ring. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below through the drawings and embodiments.

[0024] The present invention provides a mobile support frame for line operation and maintenance equipment. Figure 1-5 As shown, it includes a support frame base plate 1 and a support column 2, and is characterized in that: the four corners of the support frame base plate 1 are hollowed out, the interior of the support column 2 is hollow, the support column 2 is arranged in the hollowed out part of the support frame base plate 1, and the interior of the support column 2 is communicated with the outside world through the hollowed out part, and a universal wheel 3 and a universal wheel adjustment assembly are arranged inside the support column 2, and the universal wheel 3 can be extended or retracted through the universal wheel assembly. When extended, the support frame can be moved conveniently, and when retracted, the support frame base plate 1 is in contact with the ground, and has high stability.

[0025] Reference Figure 3-4 The universal wheel adjustment assembly includes a limit block 4, which is fixed in the support column 2 and has a certain distance from the lower end of the support column 2, and the distance is equal to the height of the universal wheel 3. A limit groove 12 running through the limit block 4 is opened up and down, and a limit column 5 is slidably connected in the limit groove 12. The lower end of the limit column 5 is connected to the universal wheel 3, and a limit tube 6 is fixed at the upper end of the limit column 5. The upper end of the limit tube 6 is open, the inside is hollow, and a positioning column 7 is provided inside. The lower end of the positioning column 7 is fixed at the center of the top surface of the limit column 5. The limit column 5 can slide up and down in the limit block 4, and the universal wheel 3 is extended and retracted when sliding.

[0026] Reference Figure 3-4 The universal wheel adjustment assembly also includes a rotating column 8, a small hole is opened on the bottom surface of the rotating column 8, the small hole is consistent with the size of the positioning column 7, the lower end of the rotating column 8 is inserted into the limiting tube 6, the positioning column 7 is inserted into the rotating column 8 through the small hole, the diameter of the rotating column 8 is equal to the inner diameter of the limiting tube 6, and the rotating column 8 can rotate around the positioning column 7. It should be noted that the limiting block 4 is fixed, and the limiting column 5 and the limiting tube 6 can only slide up and down under the action of the limiting block 4. The rotating column 8 cannot move up and down under the action of the limiting ring 13 and can only rotate around the positioning column 8.

[0027] Reference Figure 3-5The rotating column 8 is partially inserted into the limiting tube 6, and a slide groove 9 is provided on the outer wall of the part of the rotating column 8 inserted into the limiting tube 6. The slide groove 9 surrounds the part of the rotating column 8 inserted into the limiting tube 6. The slide groove 9 is sequentially arranged into an upper slide section 91, a flat section 1 92, a lower slide section 93, and a flat section 2 94. Figure 5 It is a schematic diagram of the slide groove 9 after the track is unfolded into a plane. The functions of the flat section 1 92 and the flat section 2 94 are: when the cylindrical protrusion 10 slides to the two ends, the universal wheel no longer retracts, so that the operator can know that it has been fully retracted / extended, that is, the operator can stop twisting the rotary block 11.

[0028] A cylindrical protrusion 10 is fixedly provided on the inner wall of the limiting tube 6, and the cylindrical protrusion 10 is slidably connected with the slide groove 9. The diameter of the cylindrical protrusion 10 is equal to the width of the slide groove 9. A limiting ring 13 is provided on the upper end of the rotating column 8 and the upper end surface of the support frame. When the rotating column 8 rotates, the cylindrical protrusion 10 and the slide groove 9 slide. Due to the setting of the limiting ring 13, the rotating column 8 cannot move up and down. Under the action of the multi-segment tracks of the slide groove 9, the cylindrical protrusion 10 and the limiting tube 6 are driven to move up and down, and the limiting column 5 and the universal wheel 3 are driven to move up and down, and finally the contraction of the universal wheel 3 is completed.

[0029] The upper end of the rotating column 8 extends out of the supporting column 2 , and a rotating block 11 is provided on the upper end of the rotating column 8 . The rotating column 8 can be rotated by twisting the rotating block 11 to complete the retraction of the universal wheel 3 .

[0030] Although the 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 mobile support frame for line operation and maintenance equipment, comprising a support frame bottom plate (1) and a support column (2), characterized in that: The four corners of the support frame bottom plate (1) are provided with hollows, the support column (2) is hollow inside, the support column (2) is arranged at the hollow of the support frame bottom plate (1), and the inside of the support column (2) is communicated with the outside through the hollow, and a universal wheel (3) and a universal wheel adjustment component are arranged inside the support column (2).

2. The mobile support frame of the line operation and maintenance equipment according to claim 1, characterized in that: The universal wheel adjustment assembly comprises a limit block (4), the limit block (4) is fixedly arranged in the support column (2) and has a certain distance from the lower end of the support column (2), the distance being equal to the height of the universal wheel (3), the limit block (4) is provided with a limit groove (12) penetrating from top to bottom, a limit column (5) is slidably connected in the limit groove (12), the lower end of the limit column (5) is connected to the universal wheel (3), a limit tube (6) is fixedly arranged at the upper end of the limit column (5), the upper end of the limit tube (6) is open, the interior is hollow and a positioning column (7) is arranged inside, and the lower end of the positioning column (7) is fixedly arranged at the center of the top surface of the limit column (5).

3. The mobile support frame of the line operation and maintenance equipment according to claim 2, characterized in that: The universal wheel adjustment assembly also includes a rotating column (8), a small hole is opened on the bottom surface of the rotating column (8), and the small hole is consistent in size with the positioning column (7). The lower end of the rotating column (8) is inserted into the limiting tube (6), and the positioning column (7) is inserted into the rotating column (8) through the small hole. The diameter of the rotating column (8) is equal to the inner diameter of the limiting tube (6).

4. The mobile support frame of the line operation and maintenance equipment according to claim 3, characterized in that: The rotating column (8) is partially inserted into the limiting tube (6), and a sliding groove (9) is provided on the outer wall of the portion of the rotating column (8) inserted into the limiting tube (6). The sliding groove (9) surrounds the portion of the rotating column (8) inserted into the limiting tube (6), and the sliding groove (9) is sequentially arranged into an upper sliding section (91), a flat section 1 (92), a lower sliding section (93), and a flat section 2 (94).

5. The mobile support frame of the line operation and maintenance equipment according to claim 4, characterized in that: A cylindrical protrusion (10) is fixedly provided on the inner wall of the limiting tube (6), the cylindrical protrusion (10) is slidably connected to the slide groove (9), and the diameter of the cylindrical protrusion (10) is equal to the width of the slide groove (9).

6. The mobile support frame of the line operation and maintenance equipment according to claim 3, characterized in that: The upper end of the rotating column (8) extends out of the supporting column (2), a rotating block (11) is provided at the upper end of the rotating column (8), and a limiting ring (13) is provided at the upper end of the rotating column (8) and the upper end surface of the supporting frame.

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