CN218324716U - Folding staircase for maintaining transformer - Google Patents

Abstract

The utility model provides a transformer maintenance is with folding staircase, curb plate and the articulated U type frame that sets up between the curb plate of symmetry setting including the symmetry, articulated extension frame that is provided with respectively in the U type frame, the outer wall activity of the relative both sides of one of them U type frame is provided with the cardboard, the utility model discloses during the use through the upset and make two U type framves be located same horizontal plane, cardboard joint in two U type framves respectively so that the horizontal plane that U type frame kept is fixed, the extension frame that does not overturn again makes its joint on U type frame and lie in same horizontal plane with U type frame respectively, and then the length of extension frame extension U type frame makes the extension frame break away from U type frame when accomodating to overturn respectively and extend the frame so that the extension frame accomodate in U type frame, two U type frames are accomodate with laminating each other along the curb plate upset, and then very big its area that reduces, is convenient for accomodate when transformer maintenance and carry.

Description

Folding staircase for maintaining transformer

Technical Field

The utility model belongs to the technical field of the ladder, concretely relates to folding staircase.

Background

When the transformer is maintained and repaired, the escalator is generally erected in a mode of facilitating the maintenance of the transformer by workers due to the fact that the transformer is higher in position.

Chinese utility model patent CN211500499U discloses a building type folding staircase, including placing the box, the bottom of placing the box is provided with the main ladder, and one side of main ladder is provided with the vice ladder, the intermediate position department of main ladder both sides is connected through the bracing piece with the intermediate position department of vice ladder both sides, and the one end of bracing piece is connected through the round pin axle is articulated with the main ladder, one side of the bracing piece other end is provided with the fixture block, and the inside both sides of fixture block all are provided with reset spring, one side of reset spring is connected with the dop that runs through to the fixture block outside, the intermediate position department of vice ladder both sides all is provided with first draw-in groove, and the inside both sides of first draw-in groove all are provided with the second draw-in groove with dop matched with, the outside of dop is provided with the protection pad. In the above-mentioned patent, the fixture block that sets up on its bracing piece can cooperate with the first draw-in groove on the auxiliary ladder, can support the stability of main ladder and auxiliary ladder support, also can avoid folding the folding nature that the staircase influences the staircase often. But we find above-mentioned folding staircase not only bulky when carrying out the transformer maintenance, and still inconvenient taking in after folding and carrying, to the maintenance of transformer, the folding staircase of so big volume is inconvenient for the workman oneself to carry the use.

Disclosure of Invention

The utility model aims to provide a transformer maintenance is with folding staircase can further reduce the volume after folding, and it is convenient to fold and expand, and the workman of being convenient for carries out the transformer maintenance.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a transformer maintenance is with folding staircase, includes the curb plate that the symmetry set up and the articulated U type frame that sets up between the curb plate of symmetry, it is provided with extension frame, one of them to articulate respectively in the U type frame the outer wall activity of the relative both sides of U type frame is provided with the cardboard, two the cardboard joint respectively is so that two U type framves are located same horizontal plane on two relative both sides walls of U type frame, two it overturns with joint respectively on U type frame and lie in same horizontal plane with U type frame respectively to extend the frame.

Preferably, the U-shaped frame comprises vertical rods which are symmetrically arranged and a cross rod which is positioned at the same end of the two vertical rods; the extending frame is hinged to the inner walls of the two adjacent sides of the vertical rod.

Preferably, the outer walls of two opposite sides of the extending frame are symmetrically provided with clamping rods, and the vertical rod is respectively provided with an accommodating clamping groove and a fixing clamping groove which are matched with the clamping rods and used for accommodating the clamping rods.

Preferably, two thread groove has been seted up respectively to the one end of montant on the U type frame, thread groove communicates in fixed slot, thread groove internal thread rotates and is provided with the knob, extend the upset so that the kelly joint is in fixed slot, and the knob screw thread rotates with the difference joint on the kelly.

Preferably, the locking grooves are symmetrically formed in the outer walls of two opposite sides of the vertical rod on one of the U-shaped frames, the fixing holes are symmetrically formed in the locking grooves respectively, the clamping shafts are symmetrically arranged on the outer wall of one side of the clamping plate, and the clamping shafts are clamped in the fixing holes respectively.

Preferably, the outer walls of the two opposite sides of the side plate are symmetrically provided with clamping tables, locking penetrating grooves are formed in the clamping tables, elastic plates are symmetrically fixed in the locking penetrating grooves, and through holes are formed in the clamping plates.

Preferably, auxiliary holes are symmetrically formed in the outer walls of the two opposite sides of the vertical rod on the other U-shaped frame, clamping shafts on the clamping plates are respectively inserted into the auxiliary holes and the fixing holes, and the clamping platforms penetrate through the through holes.

Preferably, one end of one of the extension frames opposite to the hinge shaft is fixedly provided with an anti-skid plastic plate.

Preferably, an L-shaped hanging plate is fixedly mounted at one end of the other extension frame opposite to the hinged shaft.

In the technical scheme, the utility model provides a beneficial effect: when needs use, through overturning two U type framves and make two U type framves be located same horizontal plane, reuse the cardboard simultaneously respectively the joint on two U type frame relative both sides wall so that the horizontal plane that two U type framves kept is fixed, the extension frame that overturns respectively this moment so that the extension frame joint is on U type frame and be located same horizontal plane with U type frame respectively, thereby utilize the length that the extension frame lengthened U type frame so that use, make the extension frame break away from U type frame when needing to accomodate, and overturn the extension frame respectively so that the extension frame accomodates in U type frame, make the cardboard break away from two U type frames respectively simultaneously, and make two U type frames overturn along the curb plate and accomodate with laminating each other, its area of its two very big reductions of upset, so that accomodate and carry during transformer maintenance.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of the overall structure of the present invention in the expanded state;

fig. 2 is a schematic structural view of the folding storage state of the present invention;

FIG. 3 is an enlarged view of the portion A in FIG. 1;

FIG. 4 is an enlarged view of the portion B in FIG. 1;

fig. 5 is a schematic structural view of the cardboard and the side plate of the present invention in the unfolded state.

In the figure: 1. a vertical rod; 2. an extension frame; 3. an L-shaped hanging plate; 4. a side plate; 5. clamping a plate; 11. a cross bar; 12. fixing the clamping groove; 13. a storage slot; 14. a knob; 15. a thread groove; 16. an auxiliary hole; 17. a locking groove; 18. a fixing hole; 21. an anti-slip plastic plate; 22. a clamping rod; 41. clamping a platform; 42. a locking through groove; 43. an elastic plate; 51. and (4) clamping the shaft.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-5, the utility model provides a transformer maintenance is with folding staircase sets up the U type frame between curb plate 4 including the curb plate 4 and the symmetry that the symmetry set up, it is provided with extension frame 2 to articulate respectively in the U type frame, the outer wall activity of the relative both sides of one of them U type frame is provided with cardboard 5, two cardboard 5 joint respectively on two relative both sides walls of U type frame so that two U type framves are located same horizontal plane, 2 upsets of two extension frames are in order to joint respectively on U type frame and respectively with U type frame location same horizontal plane. When needs use, through overturning two U type framves and make two U type framves be located same horizontal plane, reuse cardboard 5 simultaneously respectively the joint on two U type frame relative both sides wall so that the horizontal plane that two U type framves kept is fixed, the extension frame 2 that overturns respectively this moment so that extension frame 2 joint is on U type frame and be located same horizontal plane with U type frame respectively, thereby utilize the length that extension frame 2 lengthened U type frame so that use, make extension frame 2 break away from U type frame when needing to accomodate, and overturn extension frame 2 respectively so that extension frame 2 accomodate in U type frame, make cardboard 5 break away from two U type frames respectively simultaneously, and make two U type frames overturn along curb plate 4 and accomodate with laminating each other, its area that its two upsets are very big reduces, so that accomodate and carry.

As shown in fig. 1, as the utility model discloses further provide a technical scheme, to U type frame, its montant 1 that sets up including the symmetry and be located two montants 1 with the horizontal pole 11 of one end, seted up respectively on montant 1 and accomodate draw-in groove 13 and fixed slot 12, all be equipped with the cambered surface that the rotatory card of the kelly 22 of being convenient for was gone into on accomodating draw-in groove 13 and the fixed slot 12. The extension frame 2 is hinged to the inner walls of the two adjacent sides of the vertical rod 1, and the hinged point of the extension frame 2 is located on the inner wall of the vertical rod 1 far away from the cross rod 11.

Further as shown in fig. 2, in order to enable the extension frame 2 to be overturned and stored between the two vertical rods 1, the outer walls of the two opposite sides of the extension frame 2 are symmetrically provided with clamping rods 22, a flexible rubber pad is fixedly mounted on the inner walls of the two opposite sides of the storage clamping groove 13, the extension frame 2 is overturned to enable the clamping rods 22 to be clamped in the storage clamping groove 13, the flexible rubber pad is used for enabling the clamping rods 22 to be clamped in the storage clamping groove 13, the flexible rubber pad is extruded by the clamping rods 22 to fix the clamping rods 22, and the extension frame 2 is overturned and stored between the two vertical rods 1.

Furthermore, in order to enable the extension frame 2 to be turned over and parallel to the U-shaped frame, the extension frame can be fixed on the U-shaped frame, a thread groove 15 is formed in one end of each of the vertical bars 1 on the two U-shaped frames respectively, the thread groove 15 is communicated with the fixed clamping groove 12, a knob 14 is arranged in the thread groove 15 in a rotating mode, when the extension frame 2 is turned over to enable the clamping rod 22 to be clamped in the fixed clamping groove 12, the through holes formed in the clamping rod 22 respectively align with the thread groove 15, meanwhile, the extension frame 2 and the U-shaped frame are located on the same horizontal plane, specifically, referring to fig. 1, the knob 14 is turned to enable the knob 14 to rotate in a threaded mode, one end of the knob 14 penetrates through the through holes in the clamping rod 22 respectively, at this time, the clamping rod 22 is fixed on the U-shaped frame through the knob 14, and then the extension frame 2 is kept in the same horizontal plane as the U-shaped frame.

Specifically, in order to accommodate the clamping plates 5 on the U-shaped frame, the locking grooves 17 are symmetrically formed in the outer walls of the two opposite sides of the vertical rod 1 on one of the U-shaped frame, the fixing holes 18 are symmetrically formed in the locking grooves 17 respectively, the clamping shafts 51 are symmetrically arranged on the outer wall of one side of the clamping plate 5, the clamping plates 5 on the two opposite sides of the vertical rod 1 are respectively clamped in the fixing holes 18, and therefore the clamping plates 5 are accommodated on the U-shaped frame.

Furthermore, in order to fix the two U-shaped frames on the same horizontal plane by the clamping plate 5, the outer walls of the two opposite sides of the side plate 4 are symmetrically provided with clamping platforms 41, locking through grooves 42 are formed in the clamping platforms 41, elastic plates 43 are symmetrically fixed in the locking through grooves 42, and through holes are formed in the clamping plate 5.

Furthermore, auxiliary holes 16 are symmetrically formed in the outer walls of two opposite sides of the vertical rod 1 on the other U-shaped frame, the two clamping plates 5 are taken out of the locking groove 17, one clamping shaft 51 of each clamping plate 5 is respectively inserted into the fixing hole 18 close to the side plate 4, the other clamping shaft 51 of each clamping plate 5 is inserted into the auxiliary hole 16 on the other U-shaped frame, the clamping plates 5 are attached to the side plates 4, the clamping table 41 penetrates through the through holes in the clamping plates 5 at the moment, the elastic plates 43 are extruded when the clamping plates are close to the side plates 4, the elastic plates 43 are located in the locking penetrating grooves 42, when the clamping plates 5 are completely attached to the side plates 4, the elastic plates 43 are separated from the clamping plates 5 at the moment and release elasticity to be opened so as to limit and block the clamping plates 5, the clamping shafts 51 on the clamping plates 5 are always kept in the states of being inserted into the auxiliary holes 16 and the fixing holes 18, and accordingly the two U-shaped frames located on the same horizontal plane are fixed.

As shown in fig. 2, in order to make the extension frame 2 support the U-shaped frame better, one end of one of the extension frames 2 opposite to the hinge shaft is fixedly provided with a plastic antiskid plate 21, and the plastic antiskid plate 21 is provided with antiskid projections in a linear array.

As shown in fig. 1, in order to stably hang and buckle the other extension frame 2 on the transformer bracket, an L-shaped hanging plate 3 is fixedly installed at one end of the other extension frame 2 opposite to the hinge shaft, a hanging and buckling groove is formed between the L-shaped hanging plate 3 and the extension frame 2, and the other end of the other extension frame 2 is hung and buckled on the transformer bracket through the hanging and buckling groove, so that the extension frame 2 can be stably hung and buckled on the transformer bracket.

The working principle is as follows: when the fixing device is used, the two U-shaped frames are turned over and positioned on the same horizontal plane, the two clamping plates 5 are taken out from the locking groove 17, one clamping shaft 51 of each clamping plate 5 is respectively inserted into the fixing hole 18 close to the side plate 4, the other clamping shaft 51 of each clamping plate 5 is inserted into the auxiliary hole 16 of the other U-shaped frame, the clamping plates 5 are attached to the side plates 4, the clamping table 41 penetrates through the through holes in the clamping plates 5 at the moment, the elastic plate 43 is pressed when the clamping plates 5 are close to the side plates 4, the elastic plate 43 is positioned in the locking penetrating groove 42, when the clamping plates 5 are completely attached to the side plates 4, the elastic plate 43 is separated from the clamping plates 5 and releases elastic force to open so as to limit and block the clamping plates 5, and the clamping shafts 51 on the clamping plates 5 are always kept in the state of being inserted into the auxiliary holes 16 and the fixing holes 18, so that the two U-shaped frames on the same horizontal plane are fixed, at this time, the extension frame 2 is respectively turned over to clamp the clamping rod 22 on the extension frame 2 in the fixed clamping groove 12 on the U-shaped frame, the through holes respectively formed on the clamping rod 22 are aligned with the thread grooves 15, meanwhile, the extension frame 2 and the U-shaped frame are positioned on the same horizontal plane, the knob 14 is respectively screwed to rotate the threads, one end of the knob 14 is respectively penetrated into the through holes on the clamping rod 22, at this time, the clamping rod 22 is fixed on the U-shaped frame through the knob 14, so that the extension frame 2 is kept in the state of being positioned on the same horizontal plane with the U-shaped frame, as shown in fig. 1, the escalator is formed to facilitate the maintenance of the transformer by workers, when the escalator needs to be folded, the extension frame 2 is separated from the U-shaped frame, the clamping rod 22 is clamped in the accommodating clamping groove 13 by turning over the extension frame 2, the flexible rubber pad is used for clamping the clamping rod 22 in the accommodating clamping groove 13, and the flexible rubber pad is extruded by the clamping rod 22 to fix the clamping rod 22, extension frame 2 upset this moment is accomodate between two montants 1, makes cardboard 5 break away from two U type framves respectively simultaneously to make two U type framves accomodate in order to laminate each other along the upset of curb plate 4, its area that reduces that its two upsets are very big, accomodate when so that the transformer maintenance and carry.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (6)

1. The folding escalator for maintaining the transformer is characterized by comprising side plates (4) which are symmetrically arranged and U-shaped frames which are symmetrically hinged between the side plates (4), wherein extension frames (2) are respectively hinged in the U-shaped frames, clamping plates (5) are movably arranged on the outer walls of two opposite sides of one U-shaped frame, the two clamping plates (5) are respectively clamped on two opposite side walls of the two U-shaped frames so that the two U-shaped frames are positioned on the same horizontal plane, and the two extension frames (2) are overturned to be respectively clamped on the U-shaped frames and are respectively positioned on the same horizontal plane with the U-shaped frames;

clamping platforms (41) are symmetrically arranged on the outer walls of two opposite sides of the side plate (4), locking penetrating grooves (42) are formed in the clamping platforms (41), elastic plates (43) are symmetrically fixed in the locking penetrating grooves (42), and through holes are formed in the clamping plates (5);

the U-shaped frame comprises vertical rods (1) which are symmetrically arranged and a cross rod (11) which is positioned at the same end of the two vertical rods (1); the extending frame (2) is hinged on the inner walls of two adjacent sides of the vertical rod (1);

clamping rods (22) are symmetrically arranged on the outer walls of two opposite sides of the extension frame (2); the vertical rod (1) is respectively provided with an accommodating clamping groove (13) and a fixing clamping groove (12) which are matched with the clamping rod (22).

2. The folded escalator for maintaining the transformer according to claim 1, wherein a thread groove (15) is formed in one end of each of the two vertical bars (1) on the U-shaped frame, the thread groove (15) is communicated with the fixed clamping groove (12), a knob (14) is rotatably arranged in the thread groove (15) in a threaded manner, the extension frame (2) is turned over to enable the clamping rod (22) to be clamped in the fixed clamping groove (12), and the knob (14) is rotatably screwed to be respectively clamped on the clamping rod (22).

3. The folded escalator for maintaining the transformer according to claim 1, wherein locking grooves (17) are symmetrically formed in outer walls of two opposite sides of a vertical rod (1) on one of the U-shaped frames, fixing holes (18) are symmetrically formed in the locking grooves (17), clamping shafts (51) are symmetrically arranged on the outer wall of one side of each clamping plate (5), and the clamping shafts (51) are clamped in the fixing holes (18) respectively.

4. The folding escalator for maintaining transformers according to claim 3, characterized in that auxiliary holes (16) are symmetrically formed in the outer walls of two opposite sides of the vertical rod (1) on the other U-shaped frame, the clamping shafts (51) on the clamping plates (5) are respectively inserted into the auxiliary holes (16) and the fixing holes (18), and the clamping platforms (41) penetrate through the through holes on the clamping plates (5).

5. A folded escalator for transformer maintenance according to claim 1, characterized in that one of said extension frames (2) has a non-slip plate fixedly mounted on one end with respect to the hinge axis.

6. The escalator for repairing transformers according to claim 1, characterized in that the other said extension frame (2) has an L-shaped hanging plate (3) fixed to one end opposite to the hinge axis.

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