CN211851646U - Movable maintenance cat ladder of roofing steel construction equipment foundation - Google Patents
Movable maintenance cat ladder of roofing steel construction equipment foundation Download PDFInfo
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- CN211851646U CN211851646U CN202020302287.4U CN202020302287U CN211851646U CN 211851646 U CN211851646 U CN 211851646U CN 202020302287 U CN202020302287 U CN 202020302287U CN 211851646 U CN211851646 U CN 211851646U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 69
- 239000010959 steel Substances 0.000 title claims abstract description 69
- 238000010276 construction Methods 0.000 title claims abstract description 15
- 238000012423 maintenance Methods 0.000 title claims abstract description 15
- 241000282326 Felis catus Species 0.000 title claims abstract description 12
- 238000003466 welding Methods 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 230000009193 crawling Effects 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 description 9
- 230000007547 defect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model relates to a movable maintenance cat ladder of roofing steel construction equipment foundation, its characterized in that: comprises two fixed ear plates which are respectively and vertically fixed on the top surfaces of steel beams of a steel structure equipment foundation, a rotating shaft, two ladder beams, a plurality of groups of pedal rod groups and two base cushion plates, wherein the two fixed ear plates are arranged in parallel relatively, ear holes are respectively arranged at the central position, the diameter of the section of the rotating shaft is smaller than the aperture of the ear hole on any fixed ear plate, and two ends of the two ladder beams respectively extend out of the lug holes on the two fixed lug plates, the top ends of the two ladder beams are respectively fixedly connected with two ends of the rotating shaft at the inner sides of the two fixed lug plates, the bottom ends of the two ladder beams are respectively connected with the top surfaces of the two base backing plates placed on the roof, the two ladder beams and the roof are obliquely arranged with the same included angle, a plurality of groups of pedal rod groups are uniformly distributed on the two ladder beams, each group of pedal rod group comprises two pedal rods which are horizontally arranged, and the pedal rods are respectively arranged on the front side and the rear side of the two ladder beams and fixedly connected with the two ladder beams.
Description
Technical Field
The utility model relates to an overhaul the cat ladder, especially disclose a movable maintenance cat ladder of roofing steel construction equipment foundation.
Background
A large amount of equipment is installed on roofs of public buildings such as office buildings, scientific research buildings and business buildings, steel structures are adopted as equipment foundations for many of the equipment, and the height of the steel structure equipment foundations for the roofs is generally about 60 cm. In the later operation process of the equipment, maintenance and overhaul are carried out on the equipment by maintainers standing on the basis of the steel structure equipment. The method for the maintainer to get on and off the steel structure equipment foundation generally comprises two methods, wherein the first method is that under the condition that the maintenance ladder is not arranged, the maintainer can directly jump up and down the steel structure equipment foundation because the height of the steel structure equipment foundation is not too high; the second method is to arrange a fixed type maintenance crawling ladder, and maintainers can use the fixed type maintenance crawling ladder to go up and down the steel structure equipment foundation, but the two methods have more defects. The first method for directly jumping up and down the steel structure equipment foundation by maintainers has great potential safety hazards, and particularly, the steel structure equipment foundation is easy to slip in rainy days to cause injury. The second method for overhauling the ladder to get the steel structure equipment foundation up and down by using the fixed type has the following defects: 1. the fixed overhauling crawling ladder occupies the limited use space of the roof, a lot of roofs are used as public activity places at present, the space is limited, and the fixed overhauling crawling ladder occupies the space of the roof. 2. The overhaul crawling ladder is low in utilization rate at ordinary times, but is large in quantity, and is fixed on a roof for a long time, so that inconvenience is brought to roof activity personnel and overhaul personnel when the personnel go in and out. 3. The roof layout needs to be reasonable and attractive, and the existence of the fixed overhauling crawling ladders brings influence on the overall layout attractiveness of the roof. 4. The fixed maintenance ladder stand is inconvenient to maintain.
Disclosure of Invention
An object of the utility model is to solve prior art's defect, provide a movable maintenance cat ladder on roofing steel construction equipment basis, its simple structure, safe and reliable, it is convenient to install, low cost, usable abandonment reinforcing bar preparation carries out the wastes material and recycles, and is energy-concerving and environment-protective, can overturn when not using and hide, does not crowd and account for the limited space of roofing.
The utility model discloses a realize like this: the movable overhauling crawling ladder comprises two fixed lug plates, a rotating shaft, two ladder beams, a plurality of groups of pedal rod groups and two base cushion plates, wherein the two fixed lug plates are respectively and vertically fixed on the top surface of a steel beam of a steel structure equipment foundation and are arranged in parallel relatively, lug holes are respectively formed in the central positions of the two fixed lug plates, the diameter of the cross section of the rotating shaft is smaller than the diameter of the lug hole in any fixed lug plate, two ends of the rotating shaft respectively extend out of the lug holes in the two fixed lug plates, the top ends of the two ladder beams are respectively connected and fixed at two ends of the rotating shaft on the inner sides of the two fixed lug plates, the bottom ends of the two ladder beams are respectively connected with the top surfaces of the two base cushion plates, the two base cushion plates are placed on a roof, the two ladder beams and the roof are obliquely arranged at the same included angle, and the two groups of pedal rod groups are, every group step pole group includes two step poles that the level was arranged and was parallel to each other respectively, and two step poles divide the front side and the rear side of locating two ladder beams, and the both ends of every step pole respectively with two ladder beams fixed connection.
The steel beams of two fixed otic placodes and steel construction equipment foundation are respectively through welding mode fixed connection, two fixed otic placodes are the band iron otic placode, and the height is 60 ~ 70mm, and the width is 40 ~ 50mm, and is 8 ~ 10mm thick, the aperture of the earhole is greater than respectively on two fixed otic placodes the cross-sectional diameter of rotation axis 2 ~ 3 mm.
The rotation axis with the girder steel edge of a wing of steel construction equipment basis is parallel, the both ends end of rotation axis is equipped with the anticreep mounting respectively, the length between two points apart from the farthest on the anticreep mounting cross section at rotation axis both ends is greater than the aperture 4 ~ 10mm that corresponds fixed otic placode upper ear hole respectively, the rotation axis is the round steel rotation axis, and the cross-sectional diameter is 20 ~ 25 mm.
Two terraced roof beams adopt welding mode fixed connection respectively with rotation axis and two base backing plates, two terraced roof beams are parallel to each other, and are 45 ~ 50 with the contained angle of roofing, and the interval of two terraced roof beams is less than the length of step pole, and two terraced roof beams all adopt screw-thread steel terraced roof beam, and the cross-section diameter is 20 ~ 25 mm.
The quantity of a plurality of groups of step bars group is 2 ~ 3 groups, and the distance between two sets of adjacent step bars group is 28 ~ 32cm, and two step bars in same group of step bars group set up on same horizontal plane, every step bar adopts welding mode and two ladder beam fixed connection respectively, the step bar adopt screw thread steel step bar, the cross-sectional diameter is 20 ~ 25mm, the length of every step bar is 62 ~ 67 cm.
The two base backing plates are both flat iron, the length and the width of the base backing plates are both 50mm, and the thickness of the base backing plates is 8-10 mm.
The utility model has the advantages that: the utility model provides a directly jump up and jump down steel structure equipment foundation and the potential safety hazard that exists, also solved utilize about the fixed cat ladder steel structure equipment foundation cause crowded account for roof finite space, personnel pass in and out the activity inconvenient, influence the whole overall arrangement of roof defect such as pleasing to the eye. The utility model discloses safe and reliable, it is convenient to install, simple structure, low cost, usable abandonment reinforcing bar preparation carries out the wastes material and recycles, and is energy-concerving and environment-protective, can overturn when not using and hide, does not crowd and accounts for the limited space of roofing. The utility model discloses a step pole adopts the screw-thread steel to make, can the antiskid, has ensured the security of maintainer cat ladder from top to bottom.
Drawings
Fig. 1 is a schematic structural view in a use state of the present invention.
Fig. 2 is a schematic structural view after the utility model is turned over when not in use.
In the figure: 1. fixing the ear plate; 2. A rotating shaft; 3. A ladder beam; 4. A foot rest lever; 5. A base plate; 6. A steel beam.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
According to the attached drawings 1 and 2, the utility model relates to a movable overhaul ladder stand of a roofing steel structure equipment foundation, which comprises two fixed ear plates 1, a rotating shaft 2, two ladder beams 3, a plurality of groups of pedal rod groups and two base backing plates 5, wherein the two fixed ear plates 1 are respectively and vertically fixed on the top surface of a steel beam 6 of the steel structure equipment foundation and are arranged in parallel relatively, the central positions of the two fixed ear plates 1 are respectively provided with an ear hole, the section diameter of the rotating shaft 2 is smaller than the aperture of the ear hole on any fixed ear plate 1, and the two ends of the rotating shaft respectively extend out of the ear holes on the two fixed ear plates 1, the top ends of the two ladder beams 3 are respectively connected and fixed at the two ends of the rotating shaft 2 and are arranged between the two fixed ear plates 1, the bottom ends of the two ladder beams 3 are respectively connected with the top surfaces of the two base backing plates 5, the two base backing plates, two terraced roof beams 3 are arranged for the slant of the same contained angle with the roofing, be equipped with a plurality of groups evenly distributed's step pole group on two terraced roof beams 3, every step pole group of group includes two levels respectively and arranges and the step pole 4 that is parallel to each other, and two step poles 4 divide the front side and the rear side of locating two terraced roof beams 3, the both ends of every step pole 4 respectively with two terraced roof beams 3 fixed connection.
The connection mode of two fixed otic placodes 1 and steel structural device basic girder steel 6 is the welding, the length that stretches out the earhole on two fixed otic placodes respectively in rotation axis both ends is preferred 1 ~ 3cm, two fixed otic placodes 1 are the band iron otic placode, and the height is 60 ~ 70mm, and the width is 40 ~ 50mm, and thick is 8 ~ 10mm, the aperture of the earhole is greater than respectively on two fixed otic placodes 1 the cross-sectional diameter 2 ~ 3mm of rotation axis 2.
The rotation axis 2 with the 6 edges of a wing of steel structural device basis girder steel are parallel, because two fixed otic placodes 1 welded fastening are on steel structural device basis girder steel 6, just 2 both ends of rotation axis stretch out the earhole on two fixed otic placodes 1 respectively, simultaneously because the limiting displacement of two ladder roof beams 3 of inboard fixed setting, in normal use, general rotation axis 2 can not drop out from the earhole. However, in order to further ensure the use safety and avoid the situation that the rotating shaft 2 is disengaged from the ear hole due to improper rotation angle or force, anti-disengagement fixing parts are respectively arranged at the two end heads of the rotating shaft 2, and the anti-disengagement fixing parts and the rotating shaft 2 can be fixedly connected by adopting a thread screwing mode or directly fixed at the two end parts of the rotating shaft 2 by adopting a welding and fixing mode through mutually matched internal and external threads. The anti-falling fixing pieces at the two ends of the rotating shaft 2 can be rectangular, circular and the like, the length between two points which are farthest away on the cross sections of the two anti-falling fixing pieces is respectively larger than the aperture of an ear hole on the corresponding fixing ear plate 1 by 4-10 mm, the rotating shaft 2 is a round steel rotating shaft, and the diameter of the cross section is 20-25 mm.
Two terraced roof beams 3 are the welding with rotation axis 2 and two connected modes of base backing plate 5, two terraced roof beams 3 are parallel to each other, and are 45 ~ 50 with the contained angle of roofing, and the interval of two terraced roof beams 3 is less than the length of step pole 4, and two terraced roof beams 3 all adopt screw-thread steel terraced roof beam, and the cross-sectional diameter is 20 ~ 25 mm.
The quantity of a plurality of groups step pole group is 2 ~ 3 groups, and the distance between two sets of adjacent step pole group is 28 ~ 32cm, and two step poles 4 in same group step pole group set up on same horizontal plane, and every step pole 4 adopts welding mode and two ladder beam 3 fixed connection respectively, and every step pole 4 all adopts screw steel step pole, and the cross-sectional diameter is 20 ~ 25mm, and the length of every step pole 4 is 62 ~ 67 cm.
The two base backing plates 5 are both flat irons, the length and the width of the base backing plates are both 50mm, and the thickness of the base backing plates is 8-10 mm.
The lengths of the two ladder beams 3 are determined according to the height of the roof steel structure equipment foundation and the design angle of the movable overhauling ladder stand.
Example 1:
the utility model discloses an assembly process as follows:
the first step is as follows: according to the actual height of roofing steel construction equipment foundation and the design angle of movable maintenance cat ladder, dispose the length of two terraced roof beams 3, again according to the design width configuration rotation axis 2 of movable maintenance cat ladder and the length of step pole 4, then dispose two fixed otic placodes 1 and two base backing plates 5.
The second step is that: and a fixed lug plate is vertically welded on the top surface of the steel beam 6 of the steel structure equipment foundation.
The third step: the top ends of the two ladder beams 3 are respectively welded with the rotating shaft 2, and then half of the step bars are uniformly distributed according to the length of the two ladder beams 3 and are respectively welded at the rear sides of the two ladder beams 3 to form a primary structure of the movable overhauling ladder stand.
The fourth step: penetrate the earhole of the fixed otic placode that the welding is good with the one end of rotation axis 2 in, the trailing flank of two terraced roof beams 3 is to the girder steel 6 on steel construction equipment basis, embolias the other end of rotation axis 2 with another fixed otic placode, and two fixed otic placodes are opposite parallel arrangement, rotation axis 2 is parallel with the 6 edges of a wing of the girder steel on steel construction equipment basis, then welds another fixed otic placode perpendicularly in 6 top surfaces of the girder steel on steel construction equipment basis, welds two anticreep mountings respectively in the both ends end department of rotation axis 2.
The fifth step: half the foot bar one-to-one with the foot bar of two terraced roof beams 3 rear sides in addition to weld in the front side of two terraced roof beams 3, every two foot bars that correspond set up on same horizontal plane, form a step.
And a sixth step: weld the top surface of two base backing plates 5 in the bottom of two ladder beams 3 respectively, as the support base of movable maintenance cat ladder, the utility model discloses the assembly is accomplished.
When not using at ordinary times, can with the utility model discloses lay on steel construction equipment basis after the upset, do not crowd and account for the roofing space, do not influence personnel's business turn over at ordinary times on the roofing, do not influence roofing overall arrangement yet, when needing the maintenance to overhaul, it is rotatory the utility model discloses, can use on the roofing with it.
The utility model discloses safe and reliable, it is convenient to install, simple structure, low cost, usable abandonment reinforcing bar preparation carries out the wastes material and recycles, and is energy-concerving and environment-protective, can overturn when not using and hide, does not crowd and accounts for the limited space of roofing. The foot rest rod 4 is made of deformed steel bars, can prevent slipping and ensures the safety of the maintainers when climbing up and down the ladder.
The above-described embodiments are intended to illustrate rather than limit the scope of the invention, and it should be understood that, after reading the disclosure of the present invention, various changes and modifications which have the same effect as those skilled in the art can be made to the present invention, and these modifications are also within the scope of the present invention as defined in the appended claims.
Claims (6)
1. The utility model provides a movable maintenance cat ladder on roofing steel construction equipment basis which characterized in that: the movable overhauling crawling ladder comprises two fixed lug plates, a rotating shaft, two ladder beams, a plurality of groups of pedal rod groups and two base cushion plates, wherein the two fixed lug plates are respectively and vertically fixed on the top surface of a steel beam of a steel structure equipment foundation and are arranged in parallel relatively, lug holes are respectively formed in the central positions of the two fixed lug plates, the diameter of the cross section of the rotating shaft is smaller than the diameter of the lug hole in any fixed lug plate, two ends of the rotating shaft respectively extend out of the lug holes in the two fixed lug plates, the top ends of the two ladder beams are respectively connected and fixed at two ends of the rotating shaft on the inner sides of the two fixed lug plates, the bottom ends of the two ladder beams are respectively connected with the top surfaces of the two base cushion plates, the two base cushion plates are placed on a roof, the two ladder beams and the roof are obliquely arranged at the same included angle, and the two groups of pedal rod groups are, every group step pole group includes two step poles that the level was arranged and was parallel to each other respectively, and two step poles divide the front side and the rear side of locating two ladder beams, and the both ends of every step pole respectively with two ladder beams fixed connection.
2. The movable overhaul ladder stand for the roof steel structure equipment foundation as claimed in claim 1, which is characterized in that: the steel beams of two fixed otic placodes and steel construction equipment foundation are respectively through welding mode fixed connection, two fixed otic placodes are the band iron otic placode, and the height is 60 ~ 70mm, and the width is 40 ~ 50mm, and is 8 ~ 10mm thick, the aperture of the earhole is greater than respectively on two fixed otic placodes the cross-sectional diameter of rotation axis 2 ~ 3 mm.
3. The movable overhaul ladder stand for the roof steel structure equipment foundation as claimed in claim 1, which is characterized in that: the rotation axis with the girder steel edge of a wing of steel construction equipment basis is parallel, the both ends end of rotation axis is equipped with the anticreep mounting respectively, the length between two points apart from the farthest on the anticreep mounting cross section at rotation axis both ends is greater than the aperture 4 ~ 10mm that corresponds fixed otic placode upper ear hole respectively, the rotation axis is the round steel rotation axis, and the cross-sectional diameter is 20 ~ 25 mm.
4. The movable overhaul ladder stand for the roof steel structure equipment foundation as claimed in claim 1, which is characterized in that: two terraced roof beams adopt welding mode fixed connection respectively with rotation axis and two base backing plates, two terraced roof beams are parallel to each other, and are 45 ~ 50 with the contained angle of roofing, and the interval of two terraced roof beams is less than the length of step pole, and two terraced roof beams all adopt screw-thread steel terraced roof beam, and the cross-section diameter is 20 ~ 25 mm.
5. The movable overhaul ladder stand for the roof steel structure equipment foundation as claimed in claim 1, which is characterized in that: the quantity of a plurality of groups of step bars group is 2 ~ 3 groups, and the distance between two sets of adjacent step bars group is 28 ~ 32cm, and two step bars in same group of step bars group set up on same horizontal plane, every step bar adopts welding mode and two ladder beam fixed connection respectively, the step bar adopt screw thread steel step bar, the cross-sectional diameter is 20 ~ 25mm, the length of every step bar is 62 ~ 67 cm.
6. The movable overhaul ladder stand for the roof steel structure equipment foundation as claimed in claim 1, which is characterized in that: the two base backing plates are both flat iron, the length and the width of the base backing plates are both 50mm, and the thickness of the base backing plates is 8-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020302287.4U CN211851646U (en) | 2020-03-12 | 2020-03-12 | Movable maintenance cat ladder of roofing steel construction equipment foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020302287.4U CN211851646U (en) | 2020-03-12 | 2020-03-12 | Movable maintenance cat ladder of roofing steel construction equipment foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211851646U true CN211851646U (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020302287.4U Active CN211851646U (en) | 2020-03-12 | 2020-03-12 | Movable maintenance cat ladder of roofing steel construction equipment foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211851646U (en) |
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2020
- 2020-03-12 CN CN202020302287.4U patent/CN211851646U/en active Active
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