CN108716359B - Adjustable drawing ladder, mobile substation base and mobile substation - Google Patents
Adjustable drawing ladder, mobile substation base and mobile substation Download PDFInfo
- Publication number
- CN108716359B CN108716359B CN201810469163.2A CN201810469163A CN108716359B CN 108716359 B CN108716359 B CN 108716359B CN 201810469163 A CN201810469163 A CN 201810469163A CN 108716359 B CN108716359 B CN 108716359B
- Authority
- CN
- China
- Prior art keywords
- ladder
- ladder section
- pedal
- mobile substation
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
- E06C9/06—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted
- E06C9/08—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members
- E06C9/085—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members ladders unfolded in the direction of the longitudinal members
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Ladders (AREA)
Abstract
The invention relates to an adjustable drawing ladder, a mobile substation base and a mobile substation, wherein the adjustable drawing ladder comprises at least two ladder sections, any two adjacent ladder sections form an upper ladder section and a lower ladder section which are oppositely arranged, the upper ladder section and the lower ladder section are rotatably connected through a hinge shaft so that the lower ladder section can turn downwards relative to the upper ladder section around the hinge shaft, and opposite sides of the upper ladder section and the lower ladder section are respectively provided with a supporting structure which is positioned above the hinge shaft and is matched with corresponding pushing, so that the two ladder sections are mutually supported when the lower ladder section turns upwards relative to the upper ladder section around the hinge shaft in place, and a stair structure is formed. In two adjacent ladder sections wantonly, lower ladder can be enough relatively go up the downward upset of ladder section, according to the in-service use demand, adjusts the number of ladder section of taking out, makes each ladder section prop each other through propping a structure and articulated shaft cooperation and forms the stair structure to the contained angle of adjustable drawing ladder and ground is adjustable, makes things convenient for personnel's upper and lower.
Description
Technical Field
The invention relates to an adjustable drawing ladder, a mobile substation base and a mobile substation.
Background
With the ever-increasing economy of China, the construction of a power grid is rapidly developed, but some areas have the problems that the power grid system is not perfect enough, a large amount of electrical equipment is old and aged, so that sudden load increase and tight faults cannot be coped with, and further power failure is caused, or some areas have the conditions of power shortage, transformer substation maintenance, load transfer or temporary power supply and the like, so that the power transformation system in the area is paralyzed and normal power supply cannot be realized, and at the moment, the conventional fixed transformer substation cannot solve the problems due to long construction period, and the condition of long-time power failure in an accident area can be caused.
The mobile substation is produced by taking place, the existing mobile substation is usually required to build a civil foundation or integrate a support on a base of the mobile substation when placed on site, the mobile substation is placed on the civil foundation or the support and has a certain height with the ground, and a stair is required to be arranged independently so as to facilitate people to go up and down, but the specifications of the civil foundation or the support are different, the stair is required to be arranged on the manual site according to the height of the civil foundation or the support, so that the site construction amount is increased, the installation of the mobile substation is delayed, and the power supply process is delayed.
Patent document with publication number CN202325217U discloses a pull folding ladder for van-type refit car, which comprises a foldable and expandable ladder frame and a ladder box movably connected with the ladder frame, wherein two parallel guide rails are arranged in the ladder box, the ladder frame can be pushed into the ladder box along the guide rails after being folded, and the ladder frame is composed of a plurality of ladder sections connected end to end. When the pull folding ladder is used, the ladder frame is firstly pulled out, and then the pull folding ladder is unfolded and placed on the ground to form a climbable stair.
However, the above-mentioned foldable ladder must be drawn out of all ladder sections when in use, and the height of the stairs formed by these ladder sections is fixed and cannot be adjusted according to the height of different civil foundations or support specifications, so that it is not suitable for use in mobile substations.
Disclosure of Invention
The invention aims to provide a drawing ladder, which aims to solve the technical problem that the drawing folding ladder in the prior art is not suitable for a mobile substation due to the fact that all ladder sections need to be drawn out to form a ladder with unadjustable height when in use.
In order to achieve the purpose, the invention provides an adjustable drawing ladder, which adopts the technical scheme 1: the utility model provides an adjustable drawing ladder, includes two at least ladder sections, and two arbitrary adjacent ladder sections form the last ladder section and the lower ladder section of mutual disposition, go up ladder section and lower ladder section and rotate through the articulated shaft and connect so that lower ladder section can wind the articulated shaft is relative go up ladder section upset down, it is equipped with respectively to go up ladder section and lower ladder section opposite side and is located be used for of articulated shaft top push up the complex and prop a structure, with lower ladder section winds the articulated shaft is relative go up the ladder section and upwards overturn when targetting in place and make two ladder sections prop each other and then form the stair structure.
The invention has the beneficial effects that: in two adjacent ladder sections wantonly, the lower ladder can be enough to go up the ladder section and overturn downwards around the articulated shaft relatively, according to the in-service use demand, adjust the number of ladder section of taking out, make adjustable drawing ladder and ground form suitable contained angle, and make each ladder section prop a formation stair structure each other through propping a structure and articulated shaft cooperation, make things convenient for personnel's upper and lower, prop a structure and still improved the intensity and the rigidity of the stair structure that adjustable drawing ladder formed, prevent to take place adjustable drawing ladder undercut and lead to personnel injured.
On the basis of the technical scheme 1 of the adjustable pull ladder, the technical scheme 2 is obtained by improving: the hinge shaft is disposed at a bottom position between the upper and lower ladder sections. Go up the ladder section and rotate around the articulated shaft of bottom with lower ladder section, make the abdication for enlarging the area of contact of propping the top structure on the one hand to prevent to prop top structure area of contact undersize and bear the pressure and lead to propping the top structure too big and take place to warp and become invalid, on the other hand has effectively increased the moment that props the top structure, has reduced the pressure that props the top structure and receives, further prevents to prop the top structure and take place to warp and become invalid.
On the basis of the technical scheme 1 of the adjustable pull ladder, the technical scheme 3 is obtained by improving: the supporting and jacking structure is formed by the side surfaces of the opposite sides of the two adjacent ladder sections. The contact area of the supporting structure is maximized, the pressure intensity applied to the supporting structure is reduced, and the deformation failure of the supporting structure is further prevented.
On the basis of the technical scheme 1, 2 or 3 of the adjustable pull ladder, the technical scheme 4 is obtained by improving: the ladder section comprises pedals and side frames located on two sides of the length direction of the pedals, the supporting top structures are arranged on the side frames, the pedals are rotatably installed on the two side frames through pedal shafts, and limiting structures which limit the pedals when the pedals rotate to form set included angles with the side frames are arranged on the pedals and/or the two side frames beside the pedal shafts. When the adjustable extension ladder is folded, the pedal is rotated to prevent the pedal from extending out of the side frame to interfere with the accommodation of the adjustable extension ladder; when the adjustable extension ladder is unfolded, the pedals can automatically rotate by gravity and are limited by the limiting structure to form a set included angle with the side frame, so that people can go up and down conveniently.
On the basis of the technical scheme 4 of the adjustable pull ladder, the technical scheme 5 is obtained by improving: when the pedal rotates to form the set included angle with the side frame, the pedal extends out of the side frame for a set distance.
On the basis of the technical scheme 4 of the adjustable pull ladder, the technical scheme 6 is obtained by improving: the side frame is a C-shaped channel steel with a vertically arranged bottom, the pedal is rotatably mounted on the bottom of the channel steel, and the hinge shaft is arranged on the bottom surface of the lower portion of the C-shaped channel steel.
On the basis of the technical scheme 4 of the adjustable pull ladder, the technical scheme 7 is obtained by improvement: the limiting structure comprises a circular arc-shaped limiting hole formed in the side frame and a limiting shaft arranged on the pedal beside the pedal shaft, the limiting shaft is slidably mounted in the limiting hole along the extending direction of the limiting hole, and the pedal and the side frame form a set included angle when the limiting shaft slides to the tail end of the lower portion of the limiting hole.
On the basis of the technical scheme 7 of the adjustable pull ladder, the technical scheme 8 is obtained by improving: the pedal shaft and the limiting shaft extend out of each end of the side frame and are provided with anti-falling caps.
The invention provides a technical scheme 1 of a mobile substation base, which comprises the following steps: the utility model provides a mobile substation base, is including being used for placing the pedestal of installation substation equipment, be equipped with on the pedestal and accomodate the chamber, accomodate intracavity slidable mounting and have the pull ladder, this pull ladder includes two ladder sections at least, and arbitrary two adjacent ladder sections form the last ladder section and the lower ladder section of mutual disposition, go up ladder section and lower ladder section and rotate through the articulated shaft and connect so that lower ladder section can wind the articulated shaft is relative go up ladder section upset downwards, it is equipped with respectively to go up ladder section and lower ladder section opposite side and is located be used for of articulated shaft top correspond the top push away complex and prop the structure, so that lower ladder section winds the articulated shaft is relative it props each other and then forms the stair structure to go up two ladder sections when upwards overturning to target in place. The intracavity of accomodating that sets up on the base is packed into with the pull ladder after the use, has solved the problem that needs alone for civil engineering basis or support configuration stair, uses and accomodates swiftly convenient to save occupation space.
On the basis of the technical scheme 1 of the base of the mobile substation, the technical scheme 2 is obtained by improving: the hinge shaft is disposed at a bottom position between the upper and lower ladder sections.
On the basis of the technical scheme 1 of the base of the mobile substation, the technical scheme 3 is obtained by improving: the supporting and jacking structure is formed by the side surfaces of the opposite sides of the two adjacent ladder sections.
On the basis of the technical scheme 1, 2 or 3 of the base of the mobile substation, the technical scheme 4 is obtained by improving: the ladder section comprises pedals and side frames located on two sides of the length direction of the pedals, the supporting top structures are arranged on the side frames, the pedals are rotatably installed on the two side frames through pedal shafts, and limiting structures which limit the pedals when the pedals rotate to form set included angles with the side frames are arranged on the pedals and/or the two side frames beside the pedal shafts.
On the basis of the technical scheme 4 of the base of the mobile substation, the technical scheme 5 is obtained by improving: when the pedal rotates to form the set included angle with the side frame, the pedal extends out of the side frame for a set distance.
On the basis of the technical scheme 4 of the base of the mobile substation, the technical scheme 6 is obtained by improving: the side frame is a C-shaped channel steel with a vertically arranged bottom, the pedal is rotatably mounted on the bottom of the channel steel, and the hinge shaft is arranged on the bottom surface of the lower portion of the C-shaped channel steel.
On the basis of the technical scheme 4 of the base of the mobile substation, the technical scheme 7 is obtained by improving: the limiting structure comprises a circular arc-shaped limiting hole formed in the side frame and a limiting shaft arranged on the pedal beside the pedal shaft, the limiting shaft is slidably mounted in the limiting hole along the extending direction of the limiting hole, and the pedal and the side frame form a set included angle when the limiting shaft slides to the tail end of the lower portion of the limiting hole.
On the basis of the technical scheme 7 of the base of the mobile substation, the technical scheme 8 is obtained by improving: the pedal shaft and the limiting shaft extend out of each end of the side frame and are provided with anti-falling caps.
On the basis of the technical scheme 1, 2 or 3 of the base of the mobile substation, the technical scheme 9 is obtained by improving: the length of the accommodating cavity is greater than or equal to the sum of the lengths of all ladder sections in the drawing ladder. Guarantee that the pull ladder can be packed into and accomodate the chamber.
The invention provides a technical scheme 1 of a mobile substation: the utility model provides a mobile substation, includes substation equipment and places the installation substation equipment's pedestal, be equipped with on the pedestal and accomodate the chamber, accomodate intracavity slidable mounting and have the pull ladder, this pull ladder includes two ladder sections at least, and arbitrary two adjacent ladder sections form the last ladder section and the lower ladder section of mutual disposition, go up ladder section and lower ladder section and rotate through the articulated shaft and connect so that lower ladder section can wind the articulated shaft is relative go up ladder section upset downwards, go up ladder section and lower ladder section incline in opposite directions and be equipped with respectively and be located be used for of articulated shaft top correspond the top pushing complex and prop the structure, so that lower ladder section winds the articulated shaft is relative go up ladder section upwards overturn and make two ladder sections prop each other and then form the stair structure when targetting in place.
On the basis of the technical scheme 1 of the mobile substation, the technical scheme 2 is obtained by improving: the hinge shaft is disposed at a bottom position between the upper and lower ladder sections.
On the basis of the technical scheme 1 of the mobile substation, the technical scheme 3 is obtained by improving: the supporting and jacking structure is formed by the side surfaces of the opposite sides of the two adjacent ladder sections.
On the basis of the technical scheme 1, 2 or 3 of the mobile substation, the technical scheme 4 is obtained by improving: the ladder section comprises pedals and side frames located on two sides of the length direction of the pedals, the supporting top structures are arranged on the side frames, the pedals are rotatably installed on the two side frames through pedal shafts, and limiting structures which limit the pedals when the pedals rotate to form set included angles with the side frames are arranged on the pedals and/or the two side frames beside the pedal shafts.
On the basis of the technical scheme 4 of the mobile substation, the technical scheme 5 is obtained by improving: when the pedal rotates to form the set included angle with the side frame, the pedal extends out of the side frame for a set distance.
On the basis of the technical scheme 4 of the mobile substation, the technical scheme 6 is obtained by improving: the side frame is a C-shaped channel steel with a vertically arranged bottom, the pedal is rotatably mounted on the bottom of the channel steel, and the hinge shaft is arranged on the bottom surface of the lower portion of the C-shaped channel steel.
On the basis of the technical scheme 4 of the mobile substation, the technical scheme 7 is obtained by improving: the limiting structure comprises a circular arc-shaped limiting hole formed in the side frame and a limiting shaft arranged on the pedal beside the pedal shaft, the limiting shaft is slidably mounted in the limiting hole along the extending direction of the limiting hole, and the pedal and the side frame form a set included angle when the limiting shaft slides to the tail end of the lower portion of the limiting hole.
On the basis of the technical scheme 7 of the mobile substation, the technical scheme 8 is obtained by improving: the pedal shaft and the limiting shaft extend out of each end of the side frame and are provided with anti-falling caps.
On the basis of the technical scheme 1, 2 or 3 of the mobile substation, the technical scheme 9 is obtained by improving: the length of the accommodating cavity is greater than or equal to the sum of the lengths of all ladder sections in the drawing ladder.
Drawings
FIG. 1 is a schematic perspective view of a mobile substation base provided in accordance with the present invention;
fig. 2 is a partial perspective view of the mobile substation base of fig. 1 from below;
fig. 3 is a schematic perspective view of a drawbench in the base of the mobile substation shown in fig. 1;
fig. 4 is a perspective view in elevation of a single ladder section of the extension ladder of fig. 3;
in the drawings: 1-a drawing ladder, 11-a pedal, 12-a side frame, 13-a pedal shaft, 14-a limiting shaft, 15-a limiting hole, 16-a hinge, 2-a seat body, 21-section steel, 22-a bottom plate and 23-a containing cavity.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
The invention provides a specific embodiment of a base of a mobile substation, as shown in fig. 1 to 4, the base of the mobile substation comprises a base body 2 for placing and installing substation equipment, the base body is formed by welding section steel 21 and a bottom plate 22, one side of the base body 2 is provided with a containing cavity 23, a drawing ladder 1 is slidably installed in the containing cavity, the length of the containing cavity 23 is greater than the whole length of the drawing ladder 1, the drawing ladder 1 is composed of 7 ladder sections, each ladder section comprises a pedal 11 and side frames 12 arranged at two sides of the length direction of the pedal 11, the two side frames are C-shaped channel steels with opposite notches and vertically arranged groove bottoms, the pedal 11 is rotatably installed on the groove bottom of the C-shaped channel steel through a pedal shaft 13, two ends of the pedal shaft 13 are respectively provided with an anti-falling cap, and limit structures are arranged on the pedal 11 and the two side frames 12 beside the pedal shaft 13, the limit structures stop and limit the pedal 11 when the pedal 11 rotates to form a set included angle, when the pedal 11 rotates in place, the pedal extends out of the side frame 12 for a set distance so as to increase the width of the pedal, facilitate treading of people and reduce the risk of slipping of people, wherein the pedal 11 can be approximately parallel to the ground when the pull ladder 1 is used by setting an included angle, and therefore people can go up and down conveniently.
Two adjacent ladder sections of arbitrary form the last ladder section and the lower ladder section of mutual disposition (wherein go up ladder section and lower ladder section for relative concept, two ladder sections of arbitrary adjacent disposition all can form corresponding last ladder section and lower ladder section), it passes through the articulated shaft and is connected with lower ladder section rotation, the articulated shaft specifically is the axis of rotation that hinge 16 has, hinge 16 sets up on the bottom surface of C-shaped channel-section below, so that lower ladder section enough is relative and goes up ladder section upset downwards, go up ladder section and lower ladder section two opposite sides and form the strutted structure, prop the side that the structure specifically has for the opposite side of corresponding C-shaped channel-section in two adjacent ladder sections, the strutted structure of two ladder sections props each other and makes upper and lower ladder section form the structure when lower ladder section upwards overturns to target in place for last ladder section. The C-shaped channel steel has the excellent performance of bearing the pressure parallel to the bottom of the groove, and is suitable for the drawing ladder.
The limiting structure comprises two limiting shafts 14 arranged on the pedal 11, the two limiting shafts 14 are coaxial and parallel to the pedal shaft 13, the limiting structure further comprises limiting holes 15 formed in the two side frames 12, the limiting holes 15 are arc-shaped long holes, the limiting shafts 14 are arranged in the limiting holes 15 in a sliding penetrating mode along the extending direction of the arc-shaped long holes, and the pedal 11 and the side frames 12 form a set included angle when the limiting shafts 14 rotate to the tail ends of the lower portions of the arc-shaped long holes.
The use method of the mobile substation base comprises the following steps: after the base body of the base of the mobile substation is fixed on a civil foundation or a support, a corresponding number of ladder sections are drawn out of the accommodating cavity 23 according to the height between the base body 2 and the ground, the ladder sections which are not placed on the base body 2 are turned downwards to form an inclination angle under the action of gravity, the pedal 11 automatically rotates and is stopped by the limiting structure, the lowermost ladder section is placed on the ground, the supporting structures of two adjacent ladder sections are mutually supported to form a stable stair structure, and if the pedal 11 is not completely parallel to the ground, the height of the lowermost ladder section can be increased or reduced to adjust, so that the risk that users slip is reduced. When putting into storage chamber 23 with pull ladder 1, only need to lift up the ladder section of lowermost end, rotate the footboard to can not cause the position of interfering, promote the ladder section and can be packed into storage chamber 23 with the pull ladder.
In the above-mentioned mobile substation base embodiment directly with the pull ladder slip pack into accomodate the chamber, also can install slide rail or guide rail on accomodating chamber and every ladder section in other embodiments to it can to guarantee that the ladder section can break away from accomodating the chamber. This embodiment has effectively reduced the friction between drawing ladder and the chamber of accomodating, has increased the life of the two.
In the embodiment of the base of the mobile substation, the containing cavity is arranged inside the base body, and in other embodiments, the containing cavity can be welded below the base body, so that the drawing ladder can be drawn out and contained.
The storage cavity and the drawing ladder are applied to the mobile substation in the embodiment of the base of the mobile substation, and the storage cavity and the drawing ladder can be applied to movable base platforms such as prefabricated cabins and box-type substations in other embodiments.
In the embodiment of the mobile substation base, the lowermost ladder section is directly placed on the ground, and in other embodiments, a cushion block can be arranged at the tail end of the lowermost ladder section. The cushion that sets up not only can adjust the inclination of pull-out ladder in order to adjust the inclination of footboard, can also reduce the friction between ladder section and the ground, prolongs the life of ladder section of lower extreme. Accordingly, in other embodiments, the height of the cushion block can be adjusted by an adjusting structure which adopts the existing general technology.
In the embodiment of the base of the mobile substation, the bottom surfaces of the side frames in the two adjacent ladder sections are hinged together through hinges, and in other embodiments, hinged plates extend out of the front ends and the rear ends of the side frames and are hinged with the hinged plates on the adjacent and corresponding side frames through hinge shafts respectively. Furthermore, when the side frame rotates in place, the side frame can still be propped and limited by the propping structure, or a limiting pin hole is formed in the hinged plate, and when the side frame rotates in place, the limiting pin is inserted into the limiting pin hole.
Above-mentioned mobile substation base embodiment footboard rotates and installs on the curb plate, also can make the footboard fix on the curb plate in other embodiments, stretches out the ladder section number and the bed hedgehopping of accomodating the chamber through the adjustment during use and realizes the regulation to the footboard angle to personnel's upper and lower.
During the chamber is accomodate in pushing whole pull ladder when the pull ladder is packed into in above-mentioned mobile substation base embodiment, can set the chamber of accomodating to two-layer in other embodiments, when the ladder is drawn in to the income, with half length pull ladder during the chamber of accomodating of packing into the folding downwards of upset back to save the length that occupies of accomodating the chamber.
In the embodiment of the base of the mobile substation, each ladder section is provided with one pedal, and in other embodiments, two or more pedals can be arranged on each ladder section, and the length of each ladder section is correspondingly increased. The length of ladder section has been increased in this embodiment, and corresponding reduction hinge structure has improved the bearing capacity of ladder section.
The step is arranged on each ladder section in the base embodiment of the mobile substation, and the step can be arranged on every two ladder sections or every two ladder sections in other embodiments.
In the above-mentioned base embodiment of the mobile substation, there are one hinge shaft on the pedal and two limiting shafts, in other embodiments, two coaxially arranged hinge shafts may be provided to rotatably mount the pedal on the side frame, and one limiting shaft may also extend out of the pedal by a set distance.
The drawing ladder in the base embodiment of the mobile substation comprises 7 ladder sections, and the number of the ladder sections can be increased or decreased according to actual use conditions in other embodiments so as to meet different use requirements.
The notches of the C-shaped channel steel in the base embodiment of the mobile substation are arranged oppositely, and the notches of the C-shaped channel steel can be arranged oppositely in other embodiments.
The invention provides a specific embodiment of an adjustable extension ladder, and the structure of the adjustable extension ladder is consistent with that of the extension ladder in the base embodiment of the mobile substation, and is not described again here.
The invention provides a specific embodiment of a mobile substation, which comprises a power transformation device and a base body for placing and installing the power transformation device, wherein the base body is provided with a containing cavity, and a drawing ladder is slidably installed in the containing cavity, wherein the structures and the arrangement modes of the base body and the drawing ladder are consistent with those of the base body and the drawing ladder in the base embodiment of the mobile substation, and are not repeated herein.
Claims (16)
1. The utility model provides a mobile substation base, is including being used for placing the pedestal of installation substation equipment, be equipped with on the pedestal and accomodate the chamber, accomodate intracavity slidable mounting and have the pull ladder, this pull ladder includes two ladder sections, its characterized in that at least: any two adjacent ladder sections form an upper ladder section and a lower ladder section which are oppositely arranged, the upper ladder section and the lower ladder section are rotatably connected through a hinge shaft so that the lower ladder section can turn downwards relative to the upper ladder section around the hinge shaft, and opposite sides of the upper ladder section and the lower ladder section are respectively provided with a supporting structure which is positioned above the hinge shaft and used for corresponding pushing matching, so that when the lower ladder section turns upwards relative to the upper ladder section around the hinge shaft to a certain position, the two ladder sections are mutually supported to form a stair structure; the length of the accommodating cavity is greater than or equal to the sum of the lengths of all ladder sections in the drawing ladder; when the mobile substation base is used, a corresponding number of ladder sections are drawn out of the accommodating cavity according to the height between the base body and the ground, the ladder sections which are not placed on the base body are turned downwards to form an inclination angle under the action of gravity, the lowermost ladder section is placed on the ground, and the supporting structures of two adjacent ladder sections are mutually supported to form a stable stair structure; when the drawing ladder is arranged in the accommodating cavity, the lowermost ladder section is lifted, and the ladder section is pushed to arrange the drawing ladder in the accommodating cavity.
2. The mobile substation base of claim 1, wherein: the hinge shaft is disposed at a bottom position between the upper and lower ladder sections.
3. The mobile substation base of claim 2, wherein: the supporting and jacking structure is formed by the side surfaces of the opposite sides of the two adjacent ladder sections.
4. The mobile substation base of claim 1 or 2 or 3, wherein: the ladder section comprises pedals and side frames located on two sides of the length direction of the pedals, the supporting top structures are arranged on the side frames, the pedals are rotatably installed on the two side frames through pedal shafts, and limiting structures which limit the pedals when the pedals rotate to form set included angles with the side frames are arranged on the pedals and/or the two side frames beside the pedal shafts.
5. The mobile substation base of claim 4, wherein: when the pedal rotates to form the set included angle with the side frame, the pedal extends out of the side frame for a set distance.
6. The mobile substation base of claim 4, wherein: the side frame is a C-shaped channel steel with a vertically arranged bottom, the pedal is rotatably mounted on the bottom of the channel steel, and the hinge shaft is arranged on the bottom surface of the lower portion of the C-shaped channel steel.
7. The mobile substation base of claim 4, wherein: the limiting structure comprises a circular arc-shaped limiting hole formed in the side frame and a limiting shaft arranged on the pedal beside the pedal shaft, the limiting shaft is slidably mounted in the limiting hole along the extending direction of the limiting hole, and the pedal and the side frame form a set included angle when the limiting shaft slides to the tail end of the lower portion of the limiting hole.
8. The mobile substation base of claim 7, wherein: the pedal shaft and the limiting shaft extend out of each end of the side frame and are provided with anti-falling caps.
9. The utility model provides a mobile substation, includes substation equipment and places the installation substation equipment's pedestal, be equipped with on the pedestal and accomodate the chamber, accomodate intracavity slidable mounting and have the pull ladder, this pull ladder includes two ladder sections, its characterized in that at least: any two adjacent ladder sections form an upper ladder section and a lower ladder section which are oppositely arranged, the upper ladder section and the lower ladder section are rotatably connected through a hinge shaft so that the lower ladder section can turn downwards relative to the upper ladder section around the hinge shaft, and opposite sides of the upper ladder section and the lower ladder section are respectively provided with a supporting structure which is positioned above the hinge shaft and used for corresponding pushing matching, so that when the lower ladder section turns upwards relative to the upper ladder section around the hinge shaft to a certain position, the two ladder sections are mutually supported to form a stair structure; the length of the accommodating cavity is greater than or equal to the sum of the lengths of all ladder sections in the drawing ladder; when the mobile substation base is used, a corresponding number of ladder sections are drawn out of the accommodating cavity according to the height between the base body and the ground, the ladder sections which are not placed on the base body are turned downwards to form an inclination angle under the action of gravity, the lowermost ladder section is placed on the ground, and the supporting structures of two adjacent ladder sections are mutually supported to form a stable stair structure; when the drawing ladder is arranged in the accommodating cavity, the lowermost ladder section is lifted, and the ladder section is pushed to arrange the drawing ladder in the accommodating cavity.
10. The mobile substation of claim 9, characterized in that: the hinge shaft is disposed at a bottom position between the upper and lower ladder sections.
11. The mobile substation of claim 9, characterized in that: the supporting and jacking structure is formed by the side surfaces of the opposite sides of the two adjacent ladder sections.
12. Mobile substation according to claim 9 or 10 or 11, characterized in that: the ladder section comprises pedals and side frames located on two sides of the length direction of the pedals, the supporting top structures are arranged on the side frames, the pedals are rotatably installed on the two side frames through pedal shafts, and limiting structures which limit the pedals when the pedals rotate to form set included angles with the side frames are arranged on the pedals and/or the two side frames beside the pedal shafts.
13. The mobile substation of claim 12, characterized in that: when the pedal rotates to form the set included angle with the side frame, the pedal extends out of the side frame for a set distance.
14. The mobile substation of claim 12, characterized in that: the side frame is a C-shaped channel steel with a vertically arranged bottom, the pedal is rotatably mounted on the bottom of the channel steel, and the hinge shaft is arranged on the bottom surface of the lower portion of the C-shaped channel steel.
15. The mobile substation of claim 12, characterized in that: the limiting structure comprises a circular arc-shaped limiting hole formed in the side frame and a limiting shaft arranged on the pedal beside the pedal shaft, the limiting shaft is slidably mounted in the limiting hole along the extending direction of the limiting hole, and the pedal and the side frame form a set included angle when the limiting shaft slides to the tail end of the lower portion of the limiting hole.
16. The mobile substation of claim 15, wherein: the pedal shaft and the limiting shaft extend out of each end of the side frame and are provided with anti-falling caps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810469163.2A CN108716359B (en) | 2018-05-16 | 2018-05-16 | Adjustable drawing ladder, mobile substation base and mobile substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810469163.2A CN108716359B (en) | 2018-05-16 | 2018-05-16 | Adjustable drawing ladder, mobile substation base and mobile substation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108716359A CN108716359A (en) | 2018-10-30 |
| CN108716359B true CN108716359B (en) | 2020-08-04 |
Family
ID=63900152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810469163.2A Active CN108716359B (en) | 2018-05-16 | 2018-05-16 | Adjustable drawing ladder, mobile substation base and mobile substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108716359B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236175A (en) * | 2018-11-16 | 2019-01-18 | 国网新疆电力有限公司博尔塔拉供电公司 | Ladder can be grasped by becoming the equipped formula of platform low-voltage cabinet |
| CN110984841B (en) * | 2019-11-28 | 2021-11-09 | 山东鑫润机电安装工程有限公司 | Protective function cat ladder that outdoor building or factory building used |
| CN112498245B (en) * | 2020-12-04 | 2023-09-26 | 徐州海伦哲特种车辆有限公司 | High-altitude operation device capable of automatically placing and withdrawing boarding ladder and operation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2933149A (en) * | 1955-06-22 | 1960-04-19 | Vickers Armstrongs Aircraft | Collapsible stairway installations for aircraft and other vehicles |
| GB2427643A (en) * | 2005-06-30 | 2007-01-03 | Robert David Black | An adjustable stair enabling variation in tread angle |
| CN201981996U (en) * | 2011-02-18 | 2011-09-21 | 东风襄樊旅行车有限公司 | Vehicle-mounted portable ladder stand |
| CN202249713U (en) * | 2011-09-08 | 2012-05-30 | 中国石油天然气股份有限公司 | Pedal turnover type portable ladder |
| CN205985901U (en) * | 2016-08-31 | 2017-02-22 | 山东现代恒大电气有限公司 | Over -and -under type mobile substation |
| CN207368549U (en) * | 2017-10-24 | 2018-05-15 | 保定市电力变压器厂 | A kind of removable box type converting station |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7422263B2 (en) * | 2006-11-06 | 2008-09-09 | Pritchard Wayne H | Ladder assembly for a tailgate of a truck |
-
2018
- 2018-05-16 CN CN201810469163.2A patent/CN108716359B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2933149A (en) * | 1955-06-22 | 1960-04-19 | Vickers Armstrongs Aircraft | Collapsible stairway installations for aircraft and other vehicles |
| GB2427643A (en) * | 2005-06-30 | 2007-01-03 | Robert David Black | An adjustable stair enabling variation in tread angle |
| CN201981996U (en) * | 2011-02-18 | 2011-09-21 | 东风襄樊旅行车有限公司 | Vehicle-mounted portable ladder stand |
| CN202249713U (en) * | 2011-09-08 | 2012-05-30 | 中国石油天然气股份有限公司 | Pedal turnover type portable ladder |
| CN205985901U (en) * | 2016-08-31 | 2017-02-22 | 山东现代恒大电气有限公司 | Over -and -under type mobile substation |
| CN207368549U (en) * | 2017-10-24 | 2018-05-15 | 保定市电力变压器厂 | A kind of removable box type converting station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108716359A (en) | 2018-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108716359B (en) | Adjustable drawing ladder, mobile substation base and mobile substation | |
| CN109921721B (en) | Flexibly-unfolded photovoltaic trolley | |
| CN106082045B (en) | A kind of electric power rush-repair vehicle | |
| CN111056478B (en) | Chassis maintenance device for electric engineering vehicle | |
| CN214164752U (en) | Folding portable charging station | |
| CN211777136U (en) | Electric power operation and maintenance ladder | |
| CN219316503U (en) | Prefabricated superimposed sheet supporting component | |
| CN213742636U (en) | Integrative tent of car side | |
| CN213827879U (en) | Assembly table is used in electric scooter production | |
| CN211198461U (en) | Lifting platform for automobile maintenance | |
| CN114033295A (en) | Electric power overhauls device | |
| CN209797370U (en) | Automobile maintenance lifting device | |
| CN209494273U (en) | A kind of servo-actuated brace type solid charging parking machine | |
| CN217435893U (en) | Folding lifter solar energy illumination trailer | |
| CN206830038U (en) | A kind of power construction emergency staircase | |
| CN220652659U (en) | Auxiliary using device of power distribution room cabinet | |
| CN217415960U (en) | Transport vehicle for steam turbine maintenance | |
| CN219079038U (en) | Insulating platform for equipment installation | |
| CN217558235U (en) | Multifunctional ladder for building construction | |
| CN105128829B (en) | Gap adjusting mechanism and engineering machinery between supporting leg and supporting table, supporting leg | |
| CN214835281U (en) | Automobile top-mounted side-pulling floor type semi-automatic tent | |
| CN117750240A (en) | Movable 5G communication base station and moving method | |
| CN220192562U (en) | Anti-toppling bar counter chair support | |
| CN220452104U (en) | Transportation device for wind power generation blades | |
| CN218145594U (en) | Auto repair brace table convenient to height-adjusting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |