CN217379878U - Assembled steel construction stair - Google Patents

Abstract

The utility model provides an assembled steel construction stair. The assembled steel structure stair comprises two side plates, wherein a plurality of rotating holes and a plurality of arc-shaped holes are symmetrically formed in the two side plates; the pedal comprises a plurality of side plates, a plurality of pedals, two middle shafts and two moving shafts, wherein the pedals are arranged between the two side plates at equal intervals, the two sides of the pedals are fixedly provided with the two middle shafts and the two moving shafts, and the two middle shafts on the pedals penetrate through the two symmetrical rotating holes respectively. The utility model provides an assembled steel construction stair have can be according to building ground second floor board room highly come to adjust the height of stair, and can adjust the angle of the footboard of stair, make it keep the level, safety when being favorable to the workman to walk up and down stairs to make things convenient for the short distance to remove, the assembly is simple, and is more save time, improves work efficiency's advantage.

Description

Assembled steel construction stair

Technical Field

The utility model relates to a steel construction stair technical field especially relates to an assembled steel construction stair.

Background

In the building engineering project, a temporary board room is usually built for building workers to live in, and in the building engineering project with large engineering quantity and more manpower, two layers of board rooms are generally arranged for building workers to live in order to reduce occupied area and influence on building construction, so that stairs need to be built.

Conventionally, the stairway built by the board house is generally formed by welding steel structures and is inconvenient to move, after the building engineering project is finished and when the next building engineering project is needed, the stairway supporting column of the steel structure needs to be cut off joints in a cutting mode, and after the stairway supporting column is transported to the next building engineering project, welding needs to be repeated, so that the stairway building is troublesome; and, when being used for the two-storey board house of co-altitude, if when the installation inclination through adjustment stair, the stair tread just can not the level, just need cut off the stair tread, reappear the welding footboard again, makes the footboard keep the level to also need to change the support column height, it is very troublesome, reduced work efficiency.

Therefore, it is necessary to provide an assembled steel structure stair to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a can adjust the height of stair according to the height of building engineering ground second floor board house, and can adjust the angle of the footboard of stair, make it keep the level, be favorable to the workman safety when going up and down stairs to make things convenient for the short distance to remove, the assembly is simple, and is more save time, improves work efficiency's assembled steel structure stair.

In order to solve the technical problem, the utility model provides an assembled steel construction stair includes: the two side plates are symmetrically provided with a plurality of rotating holes and a plurality of arc-shaped holes; the pedals are arranged between the two side plates at equal intervals, two middle shafts and two moving shafts are fixedly mounted on two sides of each pedal, the two middle shafts on the pedals respectively penetrate through the two symmetrical rotating holes, and the two moving shafts on the pedals respectively penetrate through the two symmetrical arc-shaped holes; the two guardrails are fixedly arranged on the two side plates respectively; the four supporting and angle fixing mechanisms are respectively and fixedly arranged at the bottoms of the two side plates, and are arranged in a pairwise symmetry manner; the two lifting mechanisms are arranged on the corresponding two supporting and angle fixing mechanisms; and the two adjusting mechanisms are respectively arranged at the tops of the two side plates.

Preferably, support and angle fixed establishment including fixing base, support column, limiting plate and fixing bolt, fixing base fixed mounting is corresponding the bottom of curb plate, the support column articulates on the fixing base, limiting plate fixed mounting is corresponding the bottom of curb plate, a plurality of regulation holes have been seted up on the limiting plate, the fixed orifices has been seted up on the support column, fixing bolt runs through fixed orifices and corresponding the regulation hole, fixing bolt with the limiting plate with the support column is fixed.

Preferably, elevating system is including sleeve and two lifter, the sleeve is located correspondingly the below of support column, the internal thread has been seted up on the telescopic inner wall, two the lifter all is located in the sleeve, two the external screw thread has all been seted up on the outer wall of lifter, two the lifter with sleeve threaded connection, two external screw thread on the lifter revolves to opposite, is located the top of lifter with corresponding the bottom fixed connection of support column, the handle hole has all been seted up to telescopic both sides.

Preferably, adjustment mechanism is including a plurality of bearing frame, threaded rod, a plurality of thread piece, a plurality of installation axle, a plurality of connecting rod and commentaries on classics handle, a plurality of the equal fixed mounting of bearing frame is corresponding the top of curb plate, the threaded rod rotates to be installed at a plurality of on the bearing frame, it is a plurality of the equal thread bush of thread piece is established on the threaded rod, it is a plurality of installation axle fixed mounting respectively is a plurality of one side of thread piece, it is a plurality of the cover is rotated respectively to the both ends of connecting rod and is established a plurality of on the removal axle of footboard one side and a plurality of install epaxially, change fixed mounting be in the one end of threaded rod.

Preferably, two mounting holes are formed in one side of each side plate, two width limiting screw rods are jointly arranged on the side plates, the two width limiting screw rods penetrate through the four mounting holes respectively, and the width limiting screw rods are fixed with the two side plates through four nuts.

Preferably, two universal wheels are fixedly mounted at the bottoms of the two side plates.

Compared with the prior art, the utility model provides an assembled steel construction stair have following beneficial effect:

the utility model provides an assembled steel construction stair:

through curb plate, footboard, axis, removal axle, guardrail, support and angle fixed establishment and elevating system cooperate, can come to adjust the height of stair according to the height in the above ground second floor board house of building worker, and accessible adjustment mechanism adjusts the angle of the footboard of stair, makes it keep the level, the safety when being favorable to the workman to walk up and down stairs to can make things convenient for the short distance to remove, this stair assembly is simple in addition, and the comparison saves time, improves work efficiency.

Drawings

Fig. 1 is a schematic side view of a preferred embodiment of the assembled steel-structure staircase according to the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a side view of the stair when stowed;

FIG. 4 is an enlarged view of the portion B shown in FIG. 3;

fig. 5 is a top view assembly view of the middle side plate, the pedal and the width-limiting screw rod of the present invention.

Reference numbers in the figures: 1. a side plate; 2. a pedal; 3. a middle shaft; 4. a movable shaft; 5. a guardrail; 6. a fixed seat; 7. a support pillar; 8. a limiting plate; 9. fixing the bolt; 10. a sleeve; 11. a lifting rod; 12. a bearing seat; 13. a threaded rod; 14. a thread block; 15. installing a shaft; 16. a connecting rod; 17. turning a handle; 18. a width-limiting screw rod; 19. a universal wheel.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1-5, wherein fig. 1 is a schematic side view of an assembled steel structure staircase according to a preferred embodiment of the present invention; FIG. 2 is an enlarged view of portion A of FIG. 1; FIG. 3 is a schematic side view of the storage structure of the present invention; FIG. 4 is an enlarged view of the portion B shown in FIG. 3; fig. 5 is a top view assembly view of the middle side plate, the pedal and the width-limiting screw rod of the present invention. Assembled steel construction stair include: the two side plates 1 are symmetrically provided with a plurality of rotating holes and a plurality of arc-shaped holes; the pedals 2 are arranged between the two side plates 1, the pedals 2 are arranged at equal intervals, two middle shafts 3 and two moving shafts 4 are fixedly arranged on two sides of the pedals 2, the two middle shafts 3 on the pedals 2 penetrate through the two symmetrical rotating holes respectively, and the two moving shafts 4 on the pedals 2 penetrate through the two symmetrical arc-shaped holes respectively; the two guardrails 5 are fixedly arranged on the two side plates 1 respectively; the four supporting and angle fixing mechanisms are respectively and fixedly arranged at the bottoms of the two side plates 1, and are arranged in a pairwise symmetrical mode; the two lifting mechanisms are arranged on the corresponding two supporting and angle fixing mechanisms; and the two adjusting mechanisms are respectively arranged at the tops of the two side plates 1.

Support and angle fixed establishment including fixing base 6, support column 7, limiting plate 8 and fixing bolt 9, fixing base 6 fixed mounting is corresponding the bottom of curb plate 1, support column 7 articulates on fixing base 6, limiting plate 8 fixed mounting is corresponding the bottom of curb plate 1, a plurality of regulation holes have been seted up on the limiting plate 8, the fixed orifices has been seted up on the support column 7, fixing bolt 9 runs through fixed orifices and corresponding the regulation hole, fixing bolt 9 with limiting plate 8 with support column 7 is fixed. Through supporting and angle fixed establishment, can fix the inclination of curb plate 1 when can supporting two curb plates 1 of stair.

Elevating system is including sleeve 10 and two lifter 11, sleeve 10 locates correspondingly the below of support column 7, internal thread has been seted up on the inner wall of sleeve 10, two lifter 11 all is located in sleeve 10, two external screw thread has all been seted up on lifter 11's the outer wall, two lifter 11 with sleeve 10 threaded connection, two external screw thread on the lifter 11 revolves to opposite, is located the top of lifter 11 with corresponding the bottom fixed connection of support column 7, the handle hole has all been seted up to sleeve 10's both sides, through elevating system, can adjust the height of stair according to the height that can construct the overground two-storey board room of worker.

Adjustment mechanism is including a plurality of bearing frame 12, threaded rod 13, a plurality of screw thread piece 14, a plurality of installation axle 15, a plurality of connecting rod 16 and change 17, a plurality of the equal fixed mounting of bearing frame 12 is corresponding the top of curb plate 1, threaded rod 13 rotates to be installed in a plurality of on the bearing frame 12, it is a plurality of the equal thread bush of screw thread piece 14 is established on threaded rod 13, it is a plurality of installation axle 15 is fixed mounting respectively in a plurality of one side of screw thread piece 14, it is a plurality of the cover is rotated respectively to the both ends of connecting rod 16 and is established a plurality of on the removal axle 4 of footboard 2 one side and a plurality of on the installation axle 15, change 17 fixed mounting in the one end of threaded rod 13 can adjust the high back of stair through adjustment mechanism, adjust the angle of footboard 2, make it keep the level.

Two mounting holes are formed in one side of each side plate 1, two width limiting screw rods 18 are jointly arranged on the side plates 1, the two width limiting screw rods 18 penetrate through the four mounting holes respectively, the width limiting screw rods 18 are fixed to the side plates 1 through four nuts, and the two side plates 1 are fixed through the two width limiting screw rods 18 and a plurality of nuts.

Two the equal fixed mounting in bottom of curb plate 1 has two universal wheels 19, accomodates the back through universal wheel 19 at stair and conveniently removes stair.

The utility model provides an assembled steel construction stair's theory of operation as follows: when the stair is used, the height of the stair can be adjusted according to the height of a board room on the second floor of a building, namely under the cooperation of a plurality of workers, two lifting rods 11 below two sleeves 10 are held, and two iron rods and other objects are inserted into operation holes in the two sleeves 10 to rotate the sleeves 10, so that the two lifting rods 11 are close to or far away from each other, and the height adjustment of the stair is realized;

then, the four limiting plates 8 and the four supporting columns 7 are respectively fixed by using the four fixing bolts 9 through the adjusting holes in the limiting plates 8 and the fixing holes in the supporting columns 7, so that the inclination angle of the stair is fixed, and the whole stair is stably placed on the ground;

the pedals 2 in the state are not horizontal, the two rotating handles 17 are rotated simultaneously to drive the two threaded rods 13 to rotate, the threaded blocks 14 are moved, and the pedals 2 are rotated by taking the central shafts 3 as axes through the connecting rods 16, so that the angles of the pedals 2 are adjusted, the pedals 2 are kept horizontal, and the safety of workers when going upstairs and downstairs is facilitated;

after the building engineering project, when needing to accomodate stair, then change four fixing bolt 9 in corresponding adjusting hole and fixed, make curb plate 1 and ground keep the level, make four universal wheels 19 support subaerial to the convenience carries out short distance's removal to stair, also makes things convenient for long distance's transportation after accomodating to stair.

Compared with the prior art, the utility model provides an assembled steel construction stair have following beneficial effect:

the utility model provides an assembled steel structure stair, through curb plate 1, footboard 2, axis 3, remove axle 4, guardrail 5, support and angle fixing mechanism and elevating system cooperate, can come to highly adjusting stair according to the height of building engineering overground two-storey house, and accessible adjustment mechanism adjusts stair's footboard 2's angle, make it keep the level, safety when being favorable to the workman to walk up and down stairs, and can make things convenient for the short distance to remove, this stair assembly is simple in addition, relatively save time, and work efficiency is improved.

It should be noted that the device structure and the accompanying drawings of the present invention mainly describe the principle of the present invention, and in the design principle, the settings of the power mechanism, the power supply system, the control system, and the like of the device are not completely described, and on the premise that the skilled person understands the principle of the present invention, the details of the power mechanism, the power supply system, and the control system can be clearly known;

furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise;

in addition, in the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or integral parts; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (6)

1. An assembled steel structure stair, comprising:

the two side plates are symmetrically provided with a plurality of rotating holes and a plurality of arc-shaped holes;

the pedals are arranged between the two side plates at equal intervals, two middle shafts and two moving shafts are fixedly mounted on two sides of each pedal, the two middle shafts on the pedals respectively penetrate through the two symmetrical rotating holes, and the two moving shafts on the pedals respectively penetrate through the two symmetrical arc-shaped holes;

the two guardrails are fixedly arranged on the two side plates respectively;

the four supporting and angle fixing mechanisms are respectively and fixedly arranged at the bottoms of the two side plates, and are arranged in a pairwise symmetry manner;

the two lifting mechanisms are arranged on the corresponding two supporting and angle fixing mechanisms;

and the two adjusting mechanisms are respectively arranged at the tops of the two side plates.

2. The assembled steel structure stair of claim 1, wherein the supporting and angle fixing mechanism comprises a fixing seat, a supporting column, a limiting plate and a fixing bolt, the fixing seat is fixedly installed at the bottom of the corresponding side plate, the supporting column is hinged to the fixing seat, the limiting plate is fixedly installed at the bottom of the corresponding side plate, the limiting plate is provided with a plurality of adjusting holes, the supporting column is provided with fixing holes, the fixing bolt penetrates through the fixing holes and the corresponding adjusting holes, and the limiting plate and the supporting column are fixed by the fixing bolt.

3. The assembled steel structure stair of claim 2, wherein the lifting mechanism comprises a sleeve and two lifting rods, the sleeve is disposed below the corresponding support column, an internal thread is formed on an inner wall of the sleeve, the two lifting rods are both located in the sleeve, an external thread is formed on an outer wall of each of the two lifting rods, the two lifting rods are in threaded connection with the sleeve, the external threads on the two lifting rods are opposite in rotation direction, the top ends of the lifting rods above the sleeve are fixedly connected with the bottom ends of the corresponding support columns, and operation holes are formed in two sides of the sleeve.

4. The assembled steel structure stair of claim 1, wherein the adjusting mechanism comprises a plurality of bearing blocks, a threaded rod, a plurality of threaded blocks, a plurality of mounting shafts, a plurality of connecting rods and a rotating handle, the plurality of bearing blocks are all fixedly mounted at the tops of the corresponding side plates, the threaded rod is rotatably mounted on the plurality of bearing blocks, the plurality of threaded blocks are all in threaded fit on the threaded rod, the plurality of mounting shafts are respectively and fixedly mounted at one side of the plurality of threaded blocks, two ends of the plurality of connecting rods are respectively and rotatably mounted on a plurality of moving shafts at one side of the pedals and a plurality of mounting shafts, and the rotating handle is fixedly mounted at one end of the threaded rod.

5. The assembled steel structure stair of claim 1, wherein two mounting holes are formed in one side of each of the two side plates, two width limiting screws are jointly arranged on the two side plates, the two width limiting screws respectively penetrate through the four mounting holes, and the width limiting screws are fixed to the two side plates through four nuts.

6. The assembled steel structure stair of claim 1, wherein two universal wheels are fixedly mounted at the bottom of each of the two side plates.

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