CN210828456U - Telescopic stair - Google Patents
Telescopic stair Download PDFInfo
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- CN210828456U CN210828456U CN201920935224.XU CN201920935224U CN210828456U CN 210828456 U CN210828456 U CN 210828456U CN 201920935224 U CN201920935224 U CN 201920935224U CN 210828456 U CN210828456 U CN 210828456U
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- rod
- rotatably connected
- footboard
- pedal
- rotating shaft
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Abstract
The utility model provides a telescopic stair, which comprises a U-shaped mounting seat; a fixing plate is fixedly welded on the rear end face of the U-shaped mounting seat, a base plate is fixedly mounted on the inner wall of the bottom of the U-shaped mounting seat, and a rotating shaft and a fixing rod are sequentially and fixedly connected to two parallel edges of the U-shaped mounting seat; the cushion plate is fixedly provided with a hydraulic cylinder which inclines downwards, and the output end of the hydraulic cylinder is fixedly provided with a rotary connecting seat; a rotating connecting rod is sleeved on the rotating shaft, one end of the rotating connecting rod is rotatably connected with the rotating connecting seat, and the other end of the rotating connecting rod is rotatably connected with a push rod; the fixed mounting has the footboard on the dead lever, and the both sides of footboard are rotated through first installation pole and catch bar respectively and are connected, are equipped with a plurality of time footboard in proper order at the lower terminal surface of footboard, rotate through second installation pole and first installation pole between the time footboard and connect, form telescopic stair. The utility model discloses the first installation pole and the second installation pole on every layer all adopt hollow zinc-plated metal tube, can reduce the weight of whole flexible stair.
Description
Technical Field
The utility model relates to a flexible stair belongs to hydraulic and hydroelectric engineering equipment technical field.
Background
In the construction of hydraulic and hydroelectric engineering, there are the perpendicular traffic needs of the big discrepancy in elevation of more constructor, the simple and easy cat ladder of more adoption scaffold frame temporary erection, and these cat ladders can satisfy the certain perpendicular traffic needs of constructor, because hydroelectric engineering concrete structure size is tall and big, the perpendicular discrepancy in elevation is big, constructor is many, and the simple and easy cat ladder of scaffold frame temporary erection sets up speed too slowly, area is too big.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a flexible stair, this flexible stair reset through the pneumatic cylinder and make flexible stair pack up, have improved flexible stair's flexibility, have reduced stair's area.
The utility model discloses a following technical scheme can realize.
The utility model provides a telescopic stair, which comprises a U-shaped mounting seat; a fixing plate is fixedly welded on the rear end face of the U-shaped mounting seat, a base plate is fixedly mounted on the inner wall of the bottom of the U-shaped mounting seat, and a rotating shaft and a fixing rod are sequentially and fixedly connected to two parallel edges of the U-shaped mounting seat; the cushion plate is fixedly provided with a hydraulic cylinder which inclines downwards, and the output end of the hydraulic cylinder is fixedly provided with a rotary connecting seat; a rotating connecting rod is sleeved on the rotating shaft, one end of the rotating connecting rod is rotatably connected with the rotating connecting seat, and the other end of the rotating connecting rod is rotatably connected with a push rod; pedals are fixedly mounted on the fixed rods, two sides of each pedal are respectively connected with the pushing rods through first mounting rods in a rotating mode, a plurality of secondary pedals are sequentially arranged on the lower end face of each pedal, and the secondary pedals are connected with the first mounting rods through second mounting rods in a rotating mode to form a telescopic stair; and a plurality of suckers which are uniformly distributed are arranged on the lower end surface of the secondary pedal at the bottommost layer.
A plurality of screw holes which are uniformly distributed are formed in the fixing plate.
The base plates are symmetrically arranged along the center line of the U-shaped mounting seat.
The included angle between the base plate and the vertical surface of the U-shaped mounting seat is 18-25 degrees.
The pivot is adjacent with the bottom inner wall of U type mount pad, and the dead lever setting is in one side of pivot, and has two.
The rotating shaft and the fixing rod are parallel to each other and are transversely arranged.
The pivot is connected with rotating the connecting rod rotation, and footboard and first installation pole rotate to be connected.
The middle parts of the two side walls of the pedal are respectively rotatably connected with one end of a first mounting rod, the middle side wall of the first mounting rod is rotatably connected with one end of a push rod, and the other end of the first mounting rod is rotatably connected with one end of the side wall of the secondary pedal on the uppermost layer; one end of the pedal side wall is rotatably connected with one end of the second mounting rod, and the other end of the second mounting rod is rotatably connected with the middle of the secondary pedal side wall on the uppermost layer.
The upper pedal and the lower pedal are rotatably connected through the first mounting rod and the second mounting rod, the middle of the side wall of the upper pedal is rotatably connected with one end of the side wall of the lower pedal through the first mounting rod, and one end of the upper pedal is rotatably connected with the middle of the side wall of the lower pedal through the second mounting rod.
The rotating connecting rod is provided with a through hole, the rotating shaft penetrates through the through hole to be sleeved with the rotating connecting rod, and a limiting ring used for limiting the left and right movement of the rotating shaft is fixedly sleeved in the through hole.
The beneficial effects of the utility model reside in that:
1. the retractable stair is retracted, so that the floor area of the stair is reduced, the flexibility of the retractable stair is enhanced, and meanwhile, the whole retractable stair is more convenient and faster to install compared with a simple ladder which is temporarily built by adopting a scaffold;
2. the first mounting rod and the second mounting rod on each layer are both hollow galvanized metal pipes, so that the weight of the whole telescopic stair is reduced;
3. four suckers are arranged on the lower surface of the bottom pedal, so that the adsorption force between the telescopic stair and the ground when the telescopic stair is put down is facilitated, and the stability is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a side view of the present invention;
in the figure: 1-U-shaped mounting seat, 2-fixing plate, 3-backing plate, 4-hydraulic cylinder, 5-rotary connecting seat, 6-rotary shaft, 7-rotary connecting rod, 8-fixing rod, 9-pedal, 10-push rod, 11-first mounting rod, 12-second mounting rod and 13-sucker.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1 to 3, a telescopic stair comprises a U-shaped mounting base 1; a fixed plate 2 is fixedly welded on the rear end face of the U-shaped mounting seat 1, a base plate 3 is fixedly mounted on the inner wall of the bottom of the U-shaped mounting seat 1, and a rotating shaft 6 and a fixed rod 8 are sequentially and fixedly connected to two parallel edges of the U-shaped mounting seat 1; a hydraulic cylinder 4 inclining downwards is fixedly arranged on the backing plate 3, and a rotary connecting seat 5 is fixedly arranged at the output end of the hydraulic cylinder 4; a rotating connecting rod 7 is sleeved on the rotating shaft 6, one end of the rotating connecting rod 7 is rotatably connected with the rotating connecting seat 5, and the other end of the rotating connecting rod 7 is rotatably connected with a push rod 10; the fixed rod 8 is fixedly provided with pedals 9, two sides of each pedal 9 are respectively connected with the pushing rod 10 through first mounting rods 11 in a rotating mode, a plurality of secondary pedals are sequentially arranged on the lower end face of each pedal 9, and the secondary pedals are connected with the first mounting rods 11 through second mounting rods 12 in a rotating mode to form a telescopic stair; a plurality of suckers 13 which are uniformly distributed are arranged on the lower end surface of the secondary pedal at the bottommost layer.
A plurality of screw holes which are uniformly distributed are arranged on the fixing plate 2.
The backing plates 3 are symmetrically arranged along the central line of the U-shaped mounting seat 1.
The included angle between the backing plate 3 and the vertical surface of the U-shaped mounting seat 1 is 18-25 degrees.
The rotating shaft 6 is adjacent to the inner wall of the bottom of the U-shaped mounting seat 1, and two fixing rods 8 are arranged on one side of the rotating shaft 6.
The rotating shaft 6 and the fixing rod 8 are parallel to each other and are transversely arranged.
The rotating shaft 6 is rotatably connected with the rotating connecting rod 7, and the pedal 9 is rotatably connected with the first mounting rod 11.
The middle parts of the two side walls of the pedal 9 are respectively rotatably connected with one end of a first mounting rod 11, the middle side wall of the first mounting rod 11 is rotatably connected with one end of a push rod 10, and the other end of the first mounting rod 11 is rotatably connected with one end of the side wall of the uppermost secondary pedal; one end of the side wall of the pedal 9 is rotatably connected with one end of a second mounting rod 12, and the other end of the second mounting rod 12 is rotatably connected with the middle of the side wall of the secondary pedal on the uppermost layer.
Rotate through first installation pole 11 and second installation pole 12 between last level footboard and the lower level footboard and be connected, rotate through the one end of first installation pole 11 with lower level footboard lateral wall in the middle of the lateral wall of last level footboard and be connected, rotate through second installation pole 12 in the middle of the lateral wall of last level footboard and lower level footboard and be connected.
The rotating connecting rod 7 is provided with a through hole, the rotating shaft 6 penetrates through the through hole to be sleeved with the rotating connecting rod 7, and a limiting ring used for limiting the rotating shaft 6 to move left and right is fixedly sleeved in the through hole.
Examples
As above, a flexible stair that hydraulic and hydroelectric engineering used, including U type mount pad 1, the fixed welding of the rear end face of U type mount pad 1 has fixed plate 2, and sets up a plurality of evenly distributed's screw hole on the fixed plate 2, through the region that needs use of screw and fixed plate 2 with flexible stair fixed mounting at hydraulic and hydroelectric engineering.
As shown in fig. 2, two symmetrically distributed backing plates 3 are fixedly installed on the inner wall of a U-shaped installation seat 1, the angle between the backing plates 3 and a vertical plane is 20 °, a hydraulic cylinder 4 inclined downward is fixedly installed on the backing plates 3, the skilled person uses a hydraulic cylinder 4 of a suitable type for installation, for example, MOBL _ MOBL1, the included angle between the hydraulic cylinder 4 and the horizontal plane is 20 °, the hydraulic cylinder 4 is controlled by a hydraulic system, a rotary connection seat 5 is fixedly installed at the output end of the hydraulic cylinder 4, a fixedly connected rotating shaft 6 is installed in the U-shaped installation seat 1, the rotating shaft 6 is transversely arranged, two rotatably connected rotating connection rods 7 are sleeved on the rotating shaft 6, through holes are formed in the rotating connection rods 7, the rotating shaft 6 penetrates through holes formed in the rotating connection rods 7, limiting rings for limiting the rotating shaft 6 to move left and right are fixedly sleeved in the through holes, one end of the rotary connecting rod 7 is rotatably connected with one end of the push rod 10, two fixing rods 8 which are arranged in parallel are arranged in the U-shaped mounting seat 1, and pedals 9 are fixedly arranged on the two fixing rods 8; the interlude of footboard 9 both sides wall rotates with the top of installation pole 11 to be connected, the interlude of installation pole 11 rotates with the other end of catch bar 10 to be connected, the bottom of installation pole 11 rotates with the lateral wall that footboard 9 on second floor is close to the rear end face to be connected, footboard 9 all installs the installation pole two 12 of rotating the connection near the both sides wall of preceding terminal surface, and the interlude of installation pole two 12 rotates with the interlude of the footboard 9 on second floor to be connected, and every layer of footboard 9 below all is the same with above-mentioned two-layer footboard 9 connected mode.
As shown in fig. 3, when the telescopic stairway is needed to be used, the hydraulic cylinder 4 is opened to push the connecting end of the rotating connecting rod 7 along the inclined plane, so that the rotating connecting rod 7 rotates downwards with the rotating joint with the rotating shaft 6 as a round point, so that the other end of the rotating connecting rod 7 pushes the connecting end of the push rod 10, so that the other end of the push rod 10 pushes the middle section of the first installation rod 11, so that the pedal 9 connected to the bottom of the push rod 10 in a rotating mode makes a curve motion towards the front, the pedal 9 makes a curve motion towards the front to drive the second installation rod 12 and the first installation rod 11 to keep the same motion state, until the first installation rod 11 and the second installation rod 12 are both in a vertical state, and meanwhile, each layer of pedal 9 keeps a parallel state, and at the moment.
When flexible stair is packed up to needs, open pneumatic cylinder 4 and make pneumatic cylinder 4's output pulling rotation connecting rod 7, thereby rotation connecting rod 7 upwards rotates for the dot with pivot 6 rotation junction, the link of catch bar 10 is pulled back to the other end that must rotate connecting rod 7, thereby the interlude of catch bar 10's the other end pulling installation pole 11, make catch bar 10 bottom rotate the footboard 9 of connecting and do curvilinear motion to the rear end face, footboard 9 drives installation pole two 12 and installation pole one 11 when curvilinear motion is done to the rear end face and keeps the same motion state, until installation pole one 11 and installation pole two 12 all are in the shrink tilt state, every layer of footboard 9 keeps laminating each other simultaneously, flexible stair accomplishes to stretch out and close pneumatic cylinder 4 this moment.
Preferably, the first mounting rod 11 and the second mounting rod 12 for connecting each layer are hollow galvanized metal pipes, so that the weight of the whole telescopic stair can be reduced.
Preferably, four suckers 13 are arranged on the lower surface of the pedal 9 at the bottommost layer, so that the adsorption force between the telescopic stair and the ground when the telescopic stair is put down is facilitated, and the stability is improved.
Specifically, the circuit and control that relate to in the utility model are prior art.
Claims (10)
1. The utility model provides a flexible stair, includes U type mount pad (1), its characterized in that: a fixing plate (2) is fixedly welded on the rear end face of the U-shaped mounting seat (1), a backing plate (3) is fixedly mounted on the inner wall of the bottom of the U-shaped mounting seat (1), and a rotating shaft (6) and a fixing rod (8) are fixedly connected to two parallel edges of the U-shaped mounting seat (1) in sequence; a hydraulic cylinder (4) inclining downwards is fixedly arranged on the base plate (3), and a rotary connecting seat (5) is fixedly arranged at the output end of the hydraulic cylinder (4); a rotating connecting rod (7) is sleeved on the rotating shaft (6), one end of the rotating connecting rod (7) is rotatably connected with the rotating connecting seat (5), and the other end of the rotating connecting rod is rotatably connected with a push rod (10); the fixed rod (8) is fixedly provided with a pedal (9), two sides of the pedal (9) are respectively rotatably connected with the push rod (10) through first mounting rods (11), a plurality of secondary pedals are sequentially arranged on the lower end face of the pedal (9), and the secondary pedals are rotatably connected with the first mounting rods (11) through second mounting rods (12) to form a telescopic stair; a plurality of suckers (13) which are uniformly distributed are arranged on the lower end surface of the secondary pedal at the bottommost layer.
2. The telescopic stairway as claimed in claim 1, wherein: a plurality of screw holes which are uniformly distributed are arranged on the fixing plate (2).
3. The telescopic stairway as claimed in claim 1, wherein: the backing plate (3) is symmetrically arranged along the central line of the U-shaped mounting seat (1).
4. The telescopic stairway as claimed in claim 1, wherein: the included angle between the base plate (3) and the vertical surface of the U-shaped mounting seat (1) is 18-25 degrees.
5. The telescopic stairway as claimed in claim 1, wherein: the rotating shaft (6) is adjacent to the inner wall of the bottom of the U-shaped mounting seat (1), and the fixing rods (8) are arranged on one side of the rotating shaft (6) and are two.
6. The telescopic stairway as claimed in claim 1, wherein: the rotating shaft (6) and the fixing rod (8) are parallel to each other and are transversely arranged.
7. The telescopic stairway as claimed in claim 1, wherein: the rotating shaft (6) is rotatably connected with the rotating connecting rod (7), and the pedal (9) is rotatably connected with the first mounting rod (11).
8. The telescopic stairway as claimed in claim 1, wherein: the middle parts of two side walls of the pedal (9) are respectively rotatably connected with one end of a first mounting rod (11), the middle side wall of the first mounting rod (11) is rotatably connected with one end of a push rod (10), and the other end of the first mounting rod (11) is rotatably connected with one end of the side wall of the secondary pedal on the uppermost layer; one end of the side wall of the pedal (9) is rotatably connected with one end of the second mounting rod (12), and the other end of the second mounting rod (12) is rotatably connected with the middle of the side wall of the secondary pedal on the uppermost layer.
9. The telescopic stairway as claimed in claim 1, wherein: rotate through first installation pole (11) and second installation pole (12) between last level footboard and the inferior footboard of lower floor and be connected, rotate through first installation pole (11) and the one end of the inferior footboard lateral wall of lower floor in the middle of the lateral wall of last level footboard and be connected, rotate through second installation pole (12) and the lateral wall of the inferior footboard of lower floor in the middle of the one end of last level footboard and be connected.
10. The telescopic stairway as claimed in claim 1, wherein: the rotating connecting rod (7) is provided with a through hole, the rotating shaft (6) penetrates through the through hole to be sleeved with the rotating connecting rod (7), and a limiting ring used for limiting the rotating shaft (6) to move left and right is fixedly sleeved in the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920935224.XU CN210828456U (en) | 2019-06-20 | 2019-06-20 | Telescopic stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920935224.XU CN210828456U (en) | 2019-06-20 | 2019-06-20 | Telescopic stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210828456U true CN210828456U (en) | 2020-06-23 |
Family
ID=71261146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920935224.XU Active CN210828456U (en) | 2019-06-20 | 2019-06-20 | Telescopic stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210828456U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206340A (en) * | 2019-06-20 | 2019-09-06 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of flexible stair |
-
2019
- 2019-06-20 CN CN201920935224.XU patent/CN210828456U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206340A (en) * | 2019-06-20 | 2019-09-06 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of flexible stair |
| CN110206340B (en) * | 2019-06-20 | 2024-03-19 | 中国电建集团贵阳勘测设计研究院有限公司 | Telescopic stair |
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