CN209852189U - Retractable step based on bus - Google Patents
Retractable step based on bus Download PDFInfo
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- CN209852189U CN209852189U CN201920173795.4U CN201920173795U CN209852189U CN 209852189 U CN209852189 U CN 209852189U CN 201920173795 U CN201920173795 U CN 201920173795U CN 209852189 U CN209852189 U CN 209852189U
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- connecting rod
- vehicle body
- step plate
- bus
- worm
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Abstract
The utility model provides a retractable step based on a bus, which comprises a base, a stand column, a driving mechanism and a billboard; the step plate is positioned below the vehicle door, a first connecting rod and a second connecting rod are further arranged between the step plate and the vehicle body, the first connecting rod and the second connecting rod are arranged in parallel, and two ends of the first connecting rod and two ends of the second connecting rod are respectively hinged with the step plate and the vehicle body, so that the step plate is always kept in a horizontal state in the moving process; the vehicle body is provided with a driving mechanism, and the step plate is connected with the driving mechanism and driven by the driving mechanism to extend outwards or retract inwards from the bottom of the vehicle body; when the device is used, the step plate is driven to extend out through the driving mechanism, and the step plate is always kept in a horizontal state in the moving process, so that passengers can conveniently step on the step plate when getting on or off the vehicle.
Description
Technical Field
The utility model relates to a traffic carrier field, concretely relates to retractable step based on bus.
Background
The bus is a very common vehicle in daily life, and is very convenient for people to get on and off duty for commuting or go out, however, when getting off, the bus can feel very hard and inconvenient when directly striding into the bus from the road surface because the bottom is far away from the ground, especially the old people, children or passengers with heavy objects cause considerable trouble, and even can fall down and bump into danger, so that a retractable step which is stable, reliable, small in occupied area, safe and attractive is needed, and the bus passengers can get on and off the bus conveniently.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a retractable step based on bus to solve the problem that proposes in the background art.
The utility model provides a retractable step based on bus which characterized in that: comprises a base, a column, a driving mechanism and a billboard;
the step plate is positioned below the vehicle door, a first connecting rod and a second connecting rod are further arranged between the step plate and the vehicle body, the first connecting rod and the second connecting rod are arranged in parallel, and two ends of the first connecting rod and two ends of the second connecting rod are respectively hinged with the step plate and the vehicle body, so that the step plate is always kept in a horizontal state in the moving process;
the vehicle body is provided with a driving mechanism, and the step plate is connected with the driving mechanism and driven by the driving mechanism to extend outwards or retract inwards from the bottom of the vehicle body.
Preferably, the first connecting rod and the second connecting rod are equal, and the first connecting rod and the second connecting rod, the step plate and the vehicle body jointly form a parallelogram connecting rod mechanism; when the first link and the second link are swung to the vertical state, the step plate is in the working state of being outwardly protruded from the vehicle body bottom.
Preferably, the first connecting rod and the second connecting rod are shock absorption rods capable of absorbing vibration.
Preferably, the upper surface of the step plate is provided with a non-slip mat.
Preferably, a first sensor for determining a maximum protruding position of the step plate and a second sensor for determining a maximum retracting position of the step plate are further mounted on the vehicle body.
Preferably, the driving mechanism comprises a worm wheel, a worm and a third connecting rod, the worm wheel and the worm are both rotatably connected with the vehicle body, the worm wheel is meshed with the worm and is connected with the worm, the third connecting rod is parallel to the first connecting rod and the second connecting rod, the first end of the third connecting rod is hinged to the step plate, and the second end of the third connecting rod is fixedly connected with the worm wheel.
Preferably, the worm is vertically arranged and is coaxially and fixedly connected with the rotating shaft of the vehicle door.
Preferably, the vehicle body is further provided with a swing rod, the swing rod is positioned on one side of the third connecting rod, the first end of the swing rod is hinged with the vehicle body, the other end of the swing rod is fixedly connected with a damping baffle, and a spring is further connected between the swing rod and the vehicle body; when the step plate is in an operating state of extending outward from the bottom of the vehicle body, the third link and the damper flap abut against each other.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the step plate is arranged on the basis of the structure of the existing bus, the first connecting rod and the second connecting rod which are parallel are connected between the step plate and the bus body, and the two connecting rods enable the step plate to be always kept in a horizontal state when the step plate moves, so that passengers can conveniently step on the step plate when getting on or off the bus; the bearing capacity of the device is improved by the link mechanism, and the device also adopts a damping structure and a sensor for limiting, so that the product is prevented from being out of order in the use process;
2. the driving mechanism is driven by a worm gear and a worm, the worm is fixedly connected with the door rotating shaft, when the power system of the bus drives the door rotating shaft to rotate to open the door, the worm can rotate along with the door rotating shaft, an additional power mechanism is not needed to drive the worm, the device is simplified, the worm gear and the worm are driven to have self-locking performance, and the safety of the device can be improved.
Drawings
Fig. 1 is a left side view of the retractable steps based on the bus of the present invention;
fig. 2 is a front view of the retractable steps based on the bus of the present invention;
FIG. 3 is an enlarged partial schematic view at A of FIG. 1;
the reference numbers are as follows:
11-a vehicle body, 12-a first fixed seat, 21-a transmission box, 22-a worm wheel, 23-a worm, 24-a third connecting rod, 25-a transmission shaft, 26-a bearing, 27-an end cover, 3-a vehicle door rotating shaft, 41-a first sensor, 42-a second sensor, 43-a controller, 51-a step plate, 52-an anti-skid pad, 61-a first connecting rod, 62-a second connecting rod, 7-a vehicle door, 81-a swing rod, 82-a shock absorption baffle plate and 83-a spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "inner," "upper," "lower," and the like, refer to an orientation or a state relationship based on that shown in the drawings, which is for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention; the terms "first," "second," and the like in the description and in the claims, and in the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein.
A retractable step based on a bus as shown in fig. 1-3, comprising a base, a column, a driving mechanism and a billboard;
the step plate 51 is positioned below the vehicle door 7, a first connecting rod 61 and a second connecting rod 62 are further arranged between the step plate 51 and the vehicle body 11, wherein the first connecting rod 61 and the second connecting rod 62 are arranged in parallel, and two ends of the first connecting rod 61 and the second connecting rod 62 are respectively hinged with the step plate 51 and the vehicle body 11, so that the step plate 51 is always kept in a horizontal state in the moving process;
the vehicle body 11 is provided with a driving mechanism, and the step plate 51 is connected with the driving mechanism and driven by the driving mechanism to extend outwards or retract inwards from the bottom of the vehicle body 11.
The device is provided with a step plate 51 on the basis of the structure of the existing bus, a first connecting rod 61 and a second connecting rod 63 which are parallel are connected between the step plate 51 and the bus body, and the two connecting rods enable the step plate 51 to be always kept in a horizontal state when moving, so that passengers can conveniently step on the bus when getting on or off the bus; further, a drive mechanism is provided on the vehicle body 11 for driving the step plate 51 to extend or retract.
In a further specific arrangement, as shown in fig. 1, a first fixed seat 12 and a second fixed seat are arranged side by side at the bottom of a vehicle body 11; a first end of the first connecting rod 61 is hinged with the first fixed seat 12, and a second end is hinged with the step plate 51; a first end of the second connecting rod 62 is hinged with the second fixed seat, and a second end is hinged with the step plate 51; here, the first link 61 and the second link 62 are equal and constitute a parallelogram link mechanism together with the step plate 51 and the vehicle body 11, so that the step plate 51 is kept horizontal during movement; in the present embodiment, when the first link 61 and the second link 62 swing to the vertical state, the step plate 51 is in the working state of extending outward from the bottom of the vehicle body 11, and at this time, when a passenger steps on the step plate 51, the force direction of the first link 61 and the second link 62 is along the vertical direction, so that the bearing capacity of the step plate 51 is improved, the deformation degree of the two links can be reduced, and the service life is prolonged.
In this embodiment, the first connecting rod 61 and the second connecting rod 62 are shock-absorbing rods capable of absorbing vibration, so that the vibration of passengers stepping on the step plate 51 is reduced, and the safety and stability of the device are improved; further, a non-slip pad 52 is provided on the upper surface of the step plate 51.
In the embodiment, the driving mechanism comprises a worm wheel 22, a worm 23 and a third connecting rod 24, a transmission case 21 is arranged between the first fixed seat 12 and the second fixed seat, the worm wheel 22 and the worm 23 are both arranged in the transmission case 21, wherein the worm wheel 22 and the worm 23 are both rotatably connected with the vehicle body 11, and the worm wheel 22 is meshed with the worm 23; the third connecting rod 24 is parallel to the first connecting rod 61 and the second connecting rod 62, a first end of the third connecting rod 24 is hinged with the step plate 51, and a second end is fixedly connected with the worm wheel 22; the worm gear and worm transmission has self-locking property, and the safety of the device can be improved.
Further, in order to facilitate driving, the worm 23 is vertically arranged, a first end of the worm is coaxially and fixedly connected with the door rotating shaft 3, a second end of the worm is sleeved with a bearing 26, the bearing 26 is sleeved on the box body 21, and the box body 21 is also connected with an end cover 27 for limiting the position of the bearing 26; after the structure is adopted, when the power system of the bus drives the door rotating shaft 3 to rotate to open the door 7, the worm 23 rotates along with the door rotating shaft, and an additional power mechanism is not needed to drive the worm 23, so that the device is simplified; since the door 7 of the bus is generally split, in the embodiment, the worm wheel 22 and the worm 23 are arranged on both sides of the door 7, and the worm wheels 22 on both sides are mounted on the same transmission shaft 25.
As shown in fig. 3, in the present embodiment, a swing link 81 is further disposed on the vehicle body 11, the swing link 81 is located on one side of the third link 24, a first end of the swing link 81 is hinged to the vehicle body 11, a vertical damping baffle 82 is fixedly connected to the other end of the swing link 81, and an inclined spring 83 is further connected between the swing link 81 and the vehicle body 11; when the step plate 51 is in a working state of extending outwards from the bottom of the vehicle body 11, the third connecting rod 24 and the shock absorption baffle 82 are abutted against each other, and when the step plate 52 extends and the connecting rod falls, the shock absorption baffle 82 is matched with the swing rod 81 to reduce the impact of the connecting rod on the device, so that the service life is prolonged.
In this embodiment, the vehicle body 11 is further provided with a first sensor 41 for determining the maximum extending position of the step plate 51 and a second sensor 42 for determining the maximum retracting position of the step plate 51, the vehicle body is provided with a controller 43, the controller 43 is connected with a control system of a bus, both the first sensor 41 and the second sensor are connected with the controller 43, and when the step plate 51 fails in extension and retraction, the system senses a position error and gives an alarm to enhance the safety of the device during use.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a retractable step based on bus which characterized in that: comprises a base, a column, a driving mechanism and a billboard;
the step plate (51) is positioned below the vehicle door (7), a first connecting rod (61) and a second connecting rod (62) are further arranged between the step plate (51) and the vehicle body (11), the first connecting rod (61) and the second connecting rod (62) are arranged in parallel, and two ends of the first connecting rod (61) and two ends of the second connecting rod (62) are respectively hinged with the step plate (51) and the vehicle body (11), so that the step plate (51) is always kept in a horizontal state in the moving process;
the vehicle body (11) is provided with a driving mechanism, and the step plate (51) is connected with the driving mechanism and driven by the driving mechanism to extend outwards or retract inwards from the bottom of the vehicle body (11).
2. The bus-based telescoping step of claim 1, wherein: the first connecting rod (61) and the second connecting rod (62) are equal and form a parallelogram connecting rod mechanism together with the step plate (51) and the vehicle body (11); when the first link (61) and the second link (62) are swung to the vertical state, the step plate (51) is in the working state of protruding outward from the bottom of the vehicle body (11).
3. The bus-based telescoping step of claim 1, wherein: the first connecting rod (61) and the second connecting rod (62) are shock absorption rods capable of absorbing vibration.
4. The bus-based telescoping step of claim 1, wherein: the upper surface of the step plate (51) is provided with a non-slip mat (52).
5. The bus-based telescoping step of claim 1, wherein: a first sensor (41) for determining the maximum extending position of the step plate (51) and a second sensor (42) for determining the maximum retracting position of the step plate (51) are also mounted on the vehicle body (11).
6. The bus-based telescoping step of claim 1, wherein: the driving mechanism comprises a worm wheel (22), a worm (23) and a third connecting rod (24), the worm wheel (22) and the worm (23) are rotatably connected with the vehicle body (11), the worm wheel (22) is meshed with the worm (23) and connected with the worm (23), the third connecting rod (24) is parallel to a first connecting rod (61) and a second connecting rod (62), the first end of the third connecting rod (24) is hinged to the step plate (51), and the second end of the third connecting rod is fixedly connected with the worm wheel (22).
7. The bus-based telescoping step of claim 6, wherein: the worm (23) is vertically arranged and is coaxially and fixedly connected with the vehicle door rotating shaft (3).
8. The bus-based telescoping step of claim 6, wherein: a swing rod (81) is further arranged on the vehicle body (11), the swing rod (81) is located on one side of the third connecting rod (24), the first end of the swing rod (81) is hinged with the vehicle body (11), the other end of the swing rod (81) is fixedly connected with a damping baffle plate (82), and a spring (83) is further connected between the swing rod (81) and the vehicle body (11); when the step plate (51) is in an operating state of protruding outward from the bottom of the vehicle body (11), the third link (24) and the damper flap (82) abut against each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920173795.4U CN209852189U (en) | 2019-01-31 | 2019-01-31 | Retractable step based on bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920173795.4U CN209852189U (en) | 2019-01-31 | 2019-01-31 | Retractable step based on bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209852189U true CN209852189U (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920173795.4U Active CN209852189U (en) | 2019-01-31 | 2019-01-31 | Retractable step based on bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209852189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111232067A (en) * | 2020-03-30 | 2020-06-05 | 广东翔天智能汽车研究园有限公司 | Sharing electric bus |
-
2019
- 2019-01-31 CN CN201920173795.4U patent/CN209852189U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111232067A (en) * | 2020-03-30 | 2020-06-05 | 广东翔天智能汽车研究园有限公司 | Sharing electric bus |
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