CN216545911U - DC locomotive lifting pedal - Google Patents
DC locomotive lifting pedal Download PDFInfo
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- CN216545911U CN216545911U CN202121338703.7U CN202121338703U CN216545911U CN 216545911 U CN216545911 U CN 216545911U CN 202121338703 U CN202121338703 U CN 202121338703U CN 216545911 U CN216545911 U CN 216545911U
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- connecting rod
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- hinge point
- driving mechanism
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Abstract
The utility model relates to the technical field of locomotive cab pedals, in particular to a direct current locomotive lifting pedal which comprises a base and a pedal, wherein a linear driving mechanism is arranged in the pedal, the fixed end of the linear driving mechanism is hinged with the base, the movable end of the linear driving mechanism is hinged with a transmission connecting rod, two ends of the transmission connecting rod are respectively and rotatably connected with two sides of the base, and meanwhile, the two ends of the transmission connecting rod are respectively connected with two sides of the pedal through lever mechanisms. The pedal provided by the utility model is in a vertical lifting mode, the transmission connecting rod is driven to rotate by the internal linear driving mechanism, the rotation of the transmission connecting rod is converted into the vertical lifting action of the pedal by the lever mechanism, the structural design is reasonable, the transmission is stable and reliable, and the pedal lifting control device is suitable for the pedal lifting control of a direct current locomotive.
Description
Technical Field
The utility model relates to the technical field of locomotive cab pedals, in particular to a direct current locomotive lifting pedal.
Background
A foot pedal is generally disposed at the bottom end of a cab of rail transit, a vehicle, or the like, and a driver touches the foot pedal on the foot pedal to operate. The bottom end of a cab of rail transit or a vehicle is usually narrow, so that feet of a driver are easy to fatigue when the driver drives for a long time, different drivers feel different comfortable pedal heights due to the reasons of height and the like, the fatigue of the feet of the driver can be relieved when the driver drives for a long time by changing the heights of the pedals to the positions where the driver feels comfortable, or the heights of the pedals can be adjusted by the same driver, so that the postures of the feet are adjusted, and the purpose of relaxing is achieved. In addition, for the direct current locomotive, the distance between the seat and the pedals is only about 110mm, so that the direct current locomotive is only suitable for installing the pedals with the pedals capable of vertically lifting, the pedals in the vertical lifting mode in the prior art are still insufficient for the comfort and the operation convenience of a driver, and further improvement space is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a pedal which is suitable for a direct current locomotive and has a vertically lifting pedal, so that the comfort and the operation convenience of a driver are improved.
In order to achieve the purpose, the utility model provides a lifting pedal of a direct current locomotive, which comprises a base and a pedal, wherein a linear driving mechanism is arranged in the pedal, the fixed end of the linear driving mechanism is hinged with the base, the movable end of the linear driving mechanism is hinged with a transmission connecting rod, two ends of the transmission connecting rod are respectively and rotatably connected with two sides of the base and are simultaneously respectively connected with two sides of the pedal through lever mechanisms, the transmission connecting rod rotates under the driving of the linear driving mechanism, and the pedal is driven by the lever mechanisms to vertically lift relative to the base.
Wherein, the lever mechanism comprises a first movable hinge point and a second movable hinge point which are movably arranged, two ends of a first sine connecting rod are respectively hinged with the transmission connecting rod and the first movable hinge point, two ends of a first cosine connecting rod are respectively hinged with the first movable hinge point and the front part of the pedal, two ends of a second sine connecting rod are respectively hinged with the second movable hinge point and the base, two ends of a second cosine connecting rod are respectively hinged with the second movable hinge point and the rear part of the pedal, a parallel connecting rod is further hinged between the first movable hinge point and the second movable hinge point, a first middle connecting rod is further hinged between the first sine connecting rod and the second cosine connecting rod, a second middle connecting rod is further hinged between the first cosine connecting rod and the second sine connecting rod, through the arrangement of the lever mechanism, the rotation of the transmission connecting rod can be converted into the vertical lifting action of the pedal.
The middle part of the transmission connecting rod is hinged with one end of a connecting arm, the movable end of the linear driving mechanism is hinged with the other end of the connecting arm, and the driving force of the linear driving mechanism is transmitted to the transmission connecting rod through the connecting arm.
Preferably, the linear driving mechanism is a gas spring, the lifting position of the pedal is controlled by the telescopic quantity of the gas spring, and a self-locking gas spring is adopted.
In addition, the linear driving mechanism can also adopt a form of an air cylinder or a hydraulic cylinder, and the lifting position of the pedal is adjusted by controlling the expansion and contraction amount of the piston rod through air pressure or hydraulic pressure.
Further, the footboard is provided with steep slope section and gentle slope section, steep slope section inclination is great, the gentle slope section inclination is less, steep slope section with be provided with the section step between the gentle slope section, the step setting is in place when driver's instep does not need the operation the rest of gentle slope section, the foot front portion leans on the section step, can feel more comfortable. Wherein, the length of the slowly-inclined section exceeds 280mm, and the foot-shaped support is suitable for placing feet with large sizes.
The scheme of the utility model has the following beneficial effects:
according to the lifting pedal of the direct current locomotive, the pedal is in a vertical lifting arrangement mode, the transmission connecting rod is driven to rotate through the internal linear driving mechanism, the rotation of the transmission connecting rod is converted into the vertical lifting action of the pedal through the lever mechanism, the structural design is reasonable, the transmission is stable and reliable, and the lifting pedal is suitable for the lifting control of the pedal of the direct current locomotive; the pedal is arranged in a two-section mode, so that the feet of a driver can have a rest conveniently when the driver does not need to operate.
Other advantages of the present invention will be described in detail in the detailed description that follows.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the lever mechanism connection of the present invention;
FIG. 3 is a schematic view of the lever mechanism of the present invention;
fig. 4 is a side view of the pedal of the present invention.
[ description of reference ]
1-a base; 2-a pedal; 3-side plate; 4-a linear drive mechanism; 5-a transmission connecting rod; 6-a lever mechanism; 7-a first movable hinge point; 8-a second movable hinge point; 9-a first sinusoidal link; 10-a first cosine link; 11-a second sinusoidal link; 12-a second cosine link; 13-parallel links; 14-a first intermediate link; 15-a second intermediate link; 16-a linker arm; 17-steep slope section; 18-a slowly inclined section; 19-stepping; 20-section step.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a locked connection, a releasable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides a dc locomotive lifting pedal, which includes a base 1 and a pedal 2, and side plates are further disposed on two sides of the pedal 2, and form a box pedal structure with the base 1. A linear driving mechanism 4 is arranged in the pedal, the fixed end of the linear driving mechanism 4 is hinged to the base 1, the movable end of the linear driving mechanism is hinged to a transmission connecting rod 5, two ends of the transmission connecting rod 5 are respectively connected with two sides of the base 1 in a rotating mode, the transmission connecting rod 5 is rotatably supported by the base 1, two ends of the transmission connecting rod 5 are respectively connected with two sides of the pedal 2 through lever mechanisms 6, the linear driving mechanism 4 is of a symmetrical structure, the transmission connecting rod 5 rotates under the driving of the linear driving mechanism 4, and the lever mechanisms 6 drive the pedal 2 to vertically lift relative to the base 1.
Specifically, as shown in fig. 2 and 3, the lever mechanism 6 includes a first movable hinge point 7 and a second movable hinge point 8, which are movably disposed, two ends of a first sine link 9 are respectively hinged to the transmission link 5 and the first movable hinge point 7, two ends of a first cosine link 10 are respectively hinged to the first movable hinge point 7 and the front portion of the pedal 2, two ends of a second sine link 11 are respectively hinged to the second movable hinge point 8 and the base 1, and two ends of a second cosine link 12 are respectively hinged to the second movable hinge point 8 and the rear portion of the pedal 2. Meanwhile, a parallel connecting rod 13 is further hinged between the first movable hinge point 7 and the second movable hinge point 8, a first intermediate connecting rod 14 is further hinged between the first sine connecting rod 9 and the second cosine connecting rod 12, two ends of the first intermediate connecting rod 14 are respectively hinged with short rod pin shafts of the first sine connecting rod 9 and the second cosine connecting rod 12, a second intermediate connecting rod 15 is further hinged between the first cosine connecting rod 10 and the second sine connecting rod 11, and two ends of the second intermediate connecting rod 15 are respectively hinged with short rod pin shafts of the first cosine connecting rod 10 and the second sine connecting rod 11.
When the movable end of the linear driving mechanism 4 extends and retracts, the transmission connecting rod 5 is pushed to rotate, the transmission connecting rod 5 drives the first sine connecting rod 9 to rotate, the second sine connecting rod 11 is driven to synchronously rotate through the parallel connecting rod 13 to make sine motion, meanwhile, the first sine connecting rod 9 drives the second cosine connecting rod 12 to reversely rotate through the first intermediate connecting rod 14 to make cosine motion, and the second sine connecting rod 11 drives the first cosine connecting rod 10 to reversely rotate through the second intermediate connecting rod 15 to make cosine motion, so that after the motions of the first sine connecting rod 9 and the first cosine connecting rod 10 and the motions of the second sine connecting rod 11 and the second cosine connecting rod 12 are overlapped at the positions of the first movable hinge point 7 and the second movable hinge point 8, the motions in the horizontal direction are zero, and only the motions in the vertical direction are provided, and the purpose of controlling the pedal 2 to vertically lift is achieved.
In practical application, it is difficult to achieve the same absolute angle, and especially, an interlocking rotation angle error occurs during the lifting process, but the relative error is not very large, and the accuracy of the pedal can meet the use requirement. Or the hinged holes at the ends of the first intermediate connecting rod 14 and the second intermediate connecting rod 15 can be opened into a waist shape with a certain circle center difference, so as to be used as a compensation measure for the unsynchronized front and back lifting.
In this embodiment, the middle of the transmission link 5 is hinged to one end of a connecting arm 16, the movable end of the linear driving mechanism 4 is hinged to the other end of the connecting arm 16, the connecting arm 16 transmits the driving force of the linear driving mechanism 4 to the transmission link 5, and the length space required by the telescopic action is reduced by the rotation mode of the movable end of the linear driving mechanism 4.
In a preferred embodiment, the linear driving mechanism 4 is a gas spring, the lifting position of the pedal 2 is controlled by the expansion and contraction amount of the gas spring, and a self-locking gas spring is used to control the locking at any position during the stroke, thereby controlling the pedal 2 to be fixed at any position within the stroke. In addition, the linear driving mechanism 4 may also be in the form of an air cylinder or a hydraulic cylinder, and the lifting position of the pedal 2 is adjusted by controlling the expansion and contraction amount of the piston rod through air pressure or hydraulic pressure.
Also, as shown in fig. 4, as a further modification, the pedal 2 in the present embodiment is provided with a steep slope section 17 and a gentle slope section 18, wherein the steep slope section 17 has a large inclination angle for disposing the step 19, and the gentle slope section 18 has a small inclination angle for driver's foot placement. A section step 20 is arranged between the steep inclined section 17 and the gentle inclined section 18, the driver places the driver's foot surface on the gentle inclined section 18 for rest when not in need of operation, and the front part of the foot leans against the section step 20, so that the driver can feel comfortable. Wherein, the length of the slowly-inclined section 18 exceeds 280mm, and the slowly-inclined section is used as an extension improvement and is suitable for placing the foot surface with large size.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (6)
1. A direct current locomotive lifting pedal comprises a base and a pedal, and is characterized in that a linear driving mechanism is arranged in the pedal, the fixed end of the linear driving mechanism is hinged with the base, the movable end of the linear driving mechanism is hinged with a transmission connecting rod, two ends of the transmission connecting rod are respectively connected with two sides of the base in a rotating manner and are simultaneously respectively connected with two sides of the pedal through a lever mechanism, the lever mechanism comprises a first movable hinge point and a second movable hinge point which are movably arranged, two ends of a first sine connecting rod are respectively hinged with the transmission connecting rod and the first movable hinge point, two ends of a first cosine connecting rod are respectively hinged with the first movable hinge point and the front part of the pedal, two ends of a second sine connecting rod are respectively hinged with the second movable hinge point and the base, two ends of the second sine connecting rod are respectively hinged with the second movable hinge point and the rear part of the pedal, a parallel connecting rod is further hinged between the first movable hinge point and the second movable hinge point, a first intermediate connecting rod is further hinged between the first sine connecting rod and the second cosine connecting rod, and a second intermediate connecting rod is further hinged between the first cosine connecting rod and the second sine connecting rod.
2. The dc locomotive lifting pedal of claim 1, wherein the middle portion of the transmission link is hinged to one end of a connecting arm, and the movable end of the linear driving mechanism is hinged to the other end of the connecting arm.
3. The dc locomotive lifting pedal of claim 1, wherein the linear drive mechanism is a gas spring.
4. The dc locomotive lifting pedal of claim 1, wherein the linear drive mechanism is a pneumatic or hydraulic cylinder.
5. The dc locomotive lifting pedal according to claim 1, wherein the pedal is provided with a steep section and a gentle section, the steep section has a larger inclination angle, the gentle section has a smaller inclination angle, a section step is arranged between the steep section and the gentle section, and the pedal is arranged at the steep section.
6. The DC locomotive lifting footrest of claim 5, wherein the length of the gently sloping section exceeds 280 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121338703.7U CN216545911U (en) | 2021-06-16 | 2021-06-16 | DC locomotive lifting pedal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121338703.7U CN216545911U (en) | 2021-06-16 | 2021-06-16 | DC locomotive lifting pedal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216545911U true CN216545911U (en) | 2022-05-17 |
Family
ID=81536106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121338703.7U Active CN216545911U (en) | 2021-06-16 | 2021-06-16 | DC locomotive lifting pedal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216545911U (en) |
-
2021
- 2021-06-16 CN CN202121338703.7U patent/CN216545911U/en active Active
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