Passenger car safety pedal and high platform passenger car

Abstract

The utility model relates to the field of passenger car pedals, in particular to a passenger car safety pedal and a high platform passenger car. The passenger car safety pedal is used for solving the technical problem that an existing passenger car is low in pedal folding and unfolding speed, and the high platform passenger car is used for solving the technical problem that the existing passenger car is low in operation efficiency due to the influence of the pedal folding and unfolding speed. The passenger car safety pedal comprises an installation base body and a pedal body rotationally installed on the installation base body, and an opening and closing driving unit is arranged between the pedal body and the installation base body so that the pedal body can be driven to be opened and closed in an overturning mode. The opening and closing driving unit comprises a linear driving mechanism and a gear and rack transmission mechanism; a rack of the gear and rack transmission mechanism is in transmission connection with the output end of the linear driving mechanism, and a gear and the pedal body are relatively fixed in the rotating direction. According to the structure, when the pedal body is turned over to be opened and turned over to be closed, the constant high turning speed can be easily kept, so that the time for delaying the departure of a passenger car can be avoided, and the running efficiency of the passenger car is improved.

Description

Technical Field

[0001] The utility model belongs to the field of bus pedals, and in particular relates to a bus safety pedal and a high platform bus. Background Art

[0002] At present, in the overseas market, high platforms and high-platform buses adapted to high platforms have become the mainstream development trend of bus stations. Existing high-platform buses all set the height of the bus doors to be flush with the high platform. When the driver parks the vehicle, the bus door is as close to the high platform as possible so that passengers on the high platform can directly step into the bus door. When the driver parks the vehicle far away from the high platform, there is a large gap between the high platform and the bus door, which is inconvenient for children, the elderly or the disabled to board the bus; and during peak hours, there is a serious pushing phenomenon between passengers, and the aforementioned large gap is also very likely to cause passengers to step into the air and fall.

[0003] The Chinese utility model patent with the authorization announcement number CN207657719U discloses a pedestrian pedal system for buses. The bus pedal system is provided with a reversible pedal mechanism at the rear door of the bus. When the vehicle is parked, the pedal mechanism can be flipped open and extended to form a sloped green channel connecting the door and the ground. The application of the pedal structure at the door of a high-platform bus can form a walking bridge between the high platform and the door of the bus, thereby solving the problem caused by the gap between the high platform and the door of the bus to a certain extent. However, the pedal structure mainly drives the pedal to flip open and flip close through the cylinder and the connecting rod structure. During the process of the pedal being retracted, the transmission angle on the connecting rod structure is initially very small, and the effective flipping force acting on the pedal is also very small. This means that when the thrust of the cylinder is constant, the speed of the pedal being retracted in the early stage is extremely slow. This invisibly delays the departure time of the bus and easily affects the efficiency of the bus operation. Utility Model Content

[0004] The utility model aims to provide a passenger car safety pedal to solve the technical problem that the pedal of the existing passenger car is slow to be retracted and extended. The utility model aims to provide a high-platform passenger car to solve the technical problem that the existing passenger car is affected by the pedal retracting and extending speed, resulting in low operating efficiency.

[0005] The following technical solutions are adopted in this utility model:

[0006] A passenger car safety pedal comprises a mounting base and a pedal body rotatably mounted on the mounting base, an opening and closing drive unit is arranged between the pedal body and the mounting base to drive the pedal body to flip open and flip close; the opening and closing drive unit comprises a linear drive mechanism and a rack and pinion transmission mechanism; the rack of the rack and pinion transmission mechanism is transmission-connected to the output end of the linear drive mechanism, and the gear and the pedal body are relatively fixed in the rotation direction so that the two rotate synchronously.

[0007] Further, the rack is disposed below the gear; the mounting base includes a base frame and a rack lifting structure disposed on the base frame, and the rack lifting structure is configured to lift and hold the rack at a position meshing with the gear.

[0008] Further, the mounting end of the linear drive mechanism is hinged to the base frame, and the lifting surface of the rack lifting structure for lifting the rack is an arc surface.

[0009] Further, the rack lifting structure is a roller rotatably mounted on the base frame.

[0010] Further, wing plates are disposed on both sides of the roller, and the dimension of the wing plate in any radial direction of the roller is greater than the maximum diameter of the roller, and the rack is clamped between the two wing plates.

[0011] Further, limiting warping plates extending downward are disposed at both ends of the side of the rack facing the roller.

[0012] Further, a protective housing is disposed over the gear-rack transmission mechanism.

[0013] Further, the opening and closing drive units are disposed on both sides of the pedal body.

[0014] Further, the mounting base further includes a bearing seat fixedly mounted on the base frame, and the rotating shaft of the pedal body is fixedly mounted in the bearing of the bearing seat.

[0015] Beneficial effects: The present utility model improves the existing passenger car pedal, and specifically provides a passenger car safety pedal. The passenger car safety pedal of the present utility model includes a mounting base and a pedal body rotatably mounted on the mounting base, and an opening and closing drive unit is disposed between the pedal body and the mounting base to drive the flipping open and flipping closed of the pedal body. Compared with the prior art, the key of the present utility model is that the opening and closing drive unit includes a linear drive mechanism and a gear-rack transmission mechanism. The rack of the gear-rack transmission mechanism is in transmission connection with the output end of the linear drive mechanism so that the rack can perform a linear motion in the same direction under the drive of the linear drive mechanism; the gear is relatively fixed in the rotation direction with the pedal body so that the two rotate synchronously. When the pedal body flips open or closes, the acting force output by the linear drive mechanism is converted into a torque for driving the flipping of the pedal body through the gear-rack transmission mechanism. There is no change in the transmission angle in this process, so there will be no slow stroke when the pedal body flips open and flips closed. When the force output by the linear drive mechanism is constant, the above structure is easy to maintain a constant and relatively high flipping speed when the pedal body flips open and flips closed, so that the departure time of the passenger car can be avoided from being delayed, and further the influence of the pedal body on the operation efficiency of the passenger car can be avoided as much as possible.

[0016] A high-platform bus comprises a bus body and a bus safety pedal arranged at a door of the bus body, the bus safety pedal comprises a mounting base and a pedal body rotatably mounted on the mounting base, an opening and closing drive unit is arranged between the pedal body and the mounting base to drive the pedal body to flip open and flip close; the opening and closing drive unit comprises a linear drive mechanism and a rack and pinion transmission mechanism; the rack of the rack and pinion transmission mechanism is transmission-connected to the output end of the linear drive mechanism, and the gear and the pedal body are relatively fixed in the rotation direction so that the two rotate synchronously.

[0017] Furthermore, the rack is arranged below the gear; the mounting base includes a base frame and a rack supporting structure arranged on the base frame, and the rack supporting structure is used to support and maintain the rack in a position meshing with the gear.

[0018] Furthermore, the mounting end of the linear drive mechanism is hinged on the base frame, and the supporting surface of the rack supporting structure for supporting the rack is an arc surface.

[0019] Furthermore, the rack supporting structure is a roller rotatably mounted on the base frame.

[0020] Furthermore, wing plates are provided on both sides of the roller, and the size of the wing plates along any radial direction of the roller is larger than the maximum diameter of the roller, and the rack is sandwiched between the two wing plates.

[0021] Furthermore, downwardly extending limiting rocker plates are provided at both ends of the rack facing the roller.

[0022] Furthermore, a protective shell is provided on the upper cover of the rack and pinion transmission mechanism.

[0023] Furthermore, the opening and closing driving units are arranged on both sides of the pedal body.

[0024] Furthermore, the mounting base also includes a bearing seat fixedly mounted on the base frame, and the rotating shaft of the pedal body is fixedly mounted in the bearing of the bearing seat.

[0025] Beneficial effects: The present utility model improves the existing high-platform passenger vehicle. The high-platform passenger vehicle described in the present utility model includes a passenger vehicle main body and a passenger vehicle safety pedal disposed at the door of the passenger vehicle main body. The passenger vehicle safety pedal includes a mounting base body and a pedal main body rotatably mounted on the mounting base body. An opening and closing driving unit is provided between the pedal main body and the mounting base body to drive the flipping open and flipping closed of the pedal main body. Compared with the prior art, the key point of the present utility model is that the opening and closing driving unit includes a linear driving mechanism and a gear-rack transmission mechanism. The rack of the gear-rack transmission mechanism is in transmission connection with the output end of the linear driving mechanism, so that the rack can perform a linear motion in the same direction under the drive of the linear driving mechanism; the gear is relatively fixed in the rotation direction with the pedal main body so that the two rotate synchronously. When the pedal main body flips open or closes, the acting force output by the linear driving mechanism is converted into a torque for driving the flipping of the pedal main body through the gear-rack transmission mechanism. There is no change in the transmission angle in this process, so there will be no slow stroke when the pedal main body flips open and flips closed. When the force output by the linear driving mechanism is constant, the above structure is easy to maintain a constant and relatively high flipping speed when the pedal main body flips open and flips closed, so that the departure time of the passenger vehicle can be avoided from being delayed, and thus the influence of the pedal main body on the operation efficiency of the passenger vehicle can be avoided as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is an out-of-axis view of an embodiment of the passenger vehicle safety pedal of the high-platform passenger vehicle described in the present utility model when it flips open;

[0027] Figure 2 is Figure 1 the out-of-axis view of the pedal main body when it flips closed in ;

[0028] Figure 3 is Figure 1 the out-of-axis view of the base frame in ;

[0029] Figure 4 is Figure 1 the out-of-axis view of the rotating mounting seat in ;

[0030] Figure 5 is Figure 4 the front view of ;

[0031] Figure 6 is Figure 5 the sectional view along A-A in ;

[0032] Figure 7 is Figure 1 the out-of-axis view of the linear driving mechanism, the rack and the rack lifting structure in ;

[0033] The names of the components corresponding to the corresponding reference numerals in the figure are: 1. Bus safety pedal; 2. Pedal body; 3. Linear drive mechanism; 4. Gear; 5. Rack; 6. Base frame; 7. Longitudinal beam; 8. Short steel pipe; 9. Square plate flange; 10. Cross beam; 11. Oblique beam; 12. Vertical plate; 13. Horizontal plate; 14. Bearing seat; 15. Bearing; 16. Roller; 17. Support column; 18. Mounting hole; 19. Mounting plate; 20. Bolt and nut structure; 21. Support plate; 22. Wing plate; 23. Limiting rocker; 24. Protective shell; 25. Door bolt; 26. Stop platform; 27. Independent small door; 28. Latch. DETAILED DESCRIPTION

[0034] The features and performances of the present invention are further described in detail below in conjunction with the embodiments.

[0035] The scheme principle of the high platform passenger car described in the utility model is:

[0036] A high platform bus comprises a bus body and a bus safety pedal 1 arranged at a door of the bus body. The structure of the bus safety pedal 1 can be referred to Figure 1 , Figure 2 As shown, it comprises a mounting base and a pedal body 2 rotatably mounted on the mounting base. An opening and closing driving unit is arranged between the pedal body 2 and the mounting base to drive the pedal body 2 to flip open and flip close.

[0037] The opening and closing drive unit includes a linear drive mechanism 3 and a gear rack transmission mechanism. The linear drive mechanism 3 can be an oil cylinder, an air cylinder, etc. The rack 5 of the gear rack transmission mechanism is connected to the output end of the linear drive mechanism 3 so that the rack 5 can perform linear motion in the same direction under the drive of the linear drive mechanism 3; the gear 4 and the pedal body 2 are relatively fixed in the rotation direction so that the gear 4 and the pedal body 2 rotate synchronously.

[0038] When the pedal body 2 is flipped open or closed, the force output by the linear drive mechanism 3 is converted into a torque driving the pedal body 2 to flip through the gear rack transmission mechanism. Since there is no change in the transmission angle in the above process, there is no slow stroke when the pedal body 2 is flipped open or flipped closed. When the force output by the linear drive mechanism 3 is constant, the above structure is easy to maintain a constant high flipping speed when the pedal body 2 is flipped open or flipped closed, thereby avoiding delaying the departure time of the bus, and further avoiding the influence of the pedal body 2 on the efficiency of the bus operation as much as possible.

[0039] Embodiment 1 of the high platform passenger car of the utility model:

[0040] A high-platform bus comprises a bus body and a bus safety pedal 1 arranged at a door of the bus body. The bus body of the high-platform bus can refer to the existing bus structure, and the bus safety pedal 1 can refer to Figure 1 , Figure 2 As shown, it includes a mounting base and a pedal body 2 rotatably mounted on the mounting base. An opening and closing driving unit is arranged between the pedal body 2 and the mounting base to drive the pedal body 2 to flip open and flip close. The opening and closing driving unit specifically includes a linear driving mechanism 3 and a rack and pinion transmission mechanism. The rack 5 of the rack and pinion transmission mechanism is transmission-connected to the output end of the linear driving mechanism 3, so that the rack 5 can perform linear motion in the same direction under the drive of the linear driving mechanism 3; the gear 4 is relatively fixed to the pedal body 2 in the rotation direction so that the gear 4 rotates synchronously with the pedal body 2.

[0041] The key point of this embodiment is that the rack 5 is arranged below the gear 4, and the mounting base includes a base frame 6 and a rack lifting structure fixedly mounted on the base frame 6. The rack lifting structure lifts the rack 5 and keeps it in a position meshing with the gear 4 to ensure that the gear 4 and the rack 5 can fully mesh. In order to facilitate passengers to get on and off the bus, the end of the pedal structure that is used to rotate and install on the mounting base is usually not higher than the floor of the carriage. The rack 5 is arranged below the gear 4, which is conducive to arranging the rack 5 and the linear drive mechanism 3 below the ground. On the one hand, this saves space inside the high-platform bus and avoids the appearance of protrusions on the bus floor that hinder the movement of passengers; on the other hand, this can also provide a good operating space for the meshing of the gear 4 and the rack 5, avoiding the meshing of the gear 4 and the rack 5 being affected by the passenger behavior, and thus avoiding the passenger behavior from affecting the pedal retraction speed. The rack lifting structure can limit the downward movement tendency of the rack 5 under the action of its own weight and meshing force, and avoid the rack 5 and the gear 4 from being separated from the predetermined meshing position. In this embodiment, reference can be made to Figure 3As shown, the base frame 6 is specifically a skeleton structure formed by welding rectangular steel pipes. The skeleton structure includes three longitudinal beams 7 arranged horizontally and longitudinally, two of which are arranged in the same vertical plane and connected by four short steel pipes 8. The four short steel pipes 8 are arranged at both ends of the two longitudinal beams 7, and a square plate flange 9 is welded between the two short steel pipes 8 at either end, so that the linear drive mechanism 3 can be installed on the base frame 6. The other longitudinal beam 7 is kept in the same horizontal plane as the longitudinal beam 7 at the lower side of the two longitudinal beams 7, and the two are connected by two horizontal transverse beams 10. The two transverse beams 10 are connected to the longitudinal beam 7 at the top by oblique beams 11, so as to strengthen the overall strength of the base frame 6. Two vertical plates 12 are arranged at one end of the horizontal beam 10 facing away from the square plate flange 9, and a horizontal plate 13 is fixedly arranged above the vertical plate 12. The horizontal plate 13 is fixedly mounted with a bearing seat 14, and the pedal body 2 is fixedly mounted in a bearing 15 of the bearing seat 14, so as to realize the flip opening and flip closing of the pedal body 2 relative to the mounting base. Figures 4 - 6 As shown. A bearing 15 is arranged inside, and the outer ring of the bearing 15 is fixed relative to the rotating mounting seat. A rotating shaft extends horizontally on both sides of the pedal body 2, and the gear 4 is relatively fixed on the rotating shaft by a keyway connection. The rotating shaft is fixedly inserted in the inner ring of the bearing 15 so that the pedal body 2 can be flipped open and flipped closed. Such an arrangement is conducive to reducing the friction resistance of the pedal body 2 when it is flipped open or flipped closed, and thus is conducive to increasing the retraction and release speed of the pedal body 2. Of course, the rack 5 can also be arranged above the gear 4. A limit stop cam is arranged on the base frame 6 corresponding to the position above the rack 5, so as to limit the upward movement tendency of the rack 5 caused by the meshing force through the limit stop cam.

[0042] The mounting end of the linear drive mechanism 3 is hinged on the base frame 6. On this basis, the supporting surface of the rack supporting structure for supporting the rack 5 can be an arc surface. Figure 7 As shown, in this embodiment, the linear drive mechanism 3 is a cylinder. The mounting end of the cylinder is hinged on a steel plate fixedly mounted on the aforementioned square plate flange 9 so that the output end of the cylinder can swing. In this way, the rack 5 fixedly connected to the output end of the cylinder can also swing relatively to adjust its relative position with the gear 4. Such a setting can avoid the influence of assembly errors on the movement of the output end of the cylinder. If the rack 5 supporting structure is set higher, the output end of the cylinder can also be adaptively adjusted to avoid the rack 5 supporting structure pressing the output end of the cylinder and increasing the friction force on the output end during movement. Therefore, the above-mentioned setting also facilitates the installation and position adjustment of the linear drive mechanism 3, simplifies the installation process, and ensures that the output end of the linear drive mechanism 3 is always in a relatively good motion condition, and minimizes the influence of the friction force on the output end of the linear drive mechanism 3 on the opening and closing speed of the pedal body 2.

[0043] The rack lifting structure is a roller 16 rotatably mounted on the base frame 6. Specifically, the rack lifting structure includes a support column 17 mounted on the mounting base, and a roller 16 rotatably mounted on the support column 17. The rack 5 is lifted on the roller 16, and the rolling direction of the roller 16 is towards the moving direction of the rack 5, so as to reduce the friction between the rack lifting structure and the rack 5 by the rolling of the roller 16. Such a setting can reduce the influence of the frictional force between the rack lifting structure and the rack 5, and further reduce the power loss output from the linear drive mechanism 3 to the pedal body 2, so as to avoid affecting the speed of the pedal body 2 for flipping open or flipping closed. Of course, the aforementioned rack lifting structure can also be a disc structure fixed on the mounting base, and the cylindrical surface of the disc structure is used to support the rack 5. The cylindrical surface of the disc structure is polished smoothly or covered with a copper-based lubricating material to reduce the friction between the rack lifting structure and the rack 5. In this embodiment, mounting holes 18 are provided on the base frame 6 of the mounting base. The rack lifting structure can refer to Figure 7 As shown, it further includes a mounting plate 19. The mounting plate 19 is mounted on the base frame 6 through a bolt and nut structure 20, and the support column 17 is fixedly mounted on the mounting plate 19. A support plate 21 is provided on the base frame 6 at a position below the mounting plate 19. The support plate 21 blocks below the mounting plate 19 to limit the position of the mounting plate 19.

[0044] Of course, the mounting end of the aforementioned linear drive mechanism 3 can also be directly fixed on the mounting base through a mounting flange. The mounting holes 18 on the mounting flange are vertically arranged long holes to facilitate the adjustment of the height of the linear drive mechanism 3. Correspondingly, the aforementioned rack lifting mechanism can be a support frame fixed on the base frame 6, and the surface of the support frame for supporting the rack 5 is a plane. This plane can be polished or lubricating grease can be applied to reduce the friction between it and the rack 5.

[0045] On the basis of the aforementioned structure, wing plates 22 can be provided on both sides of the roller 16. The dimension of the wing plate 22 in any radial direction of the roller 16 is larger than the maximum diameter of the roller 16, so that the rack 5 is clamped between the two wing plates 22. Such a setting can limit the movement track of the rack 5 through the wing plates 22 to prevent the rack 5 from skewing during movement and causing damage to the output end of the linear drive mechanism 3. In this embodiment, it can be referred to Figure 7 As shown, the wing plate 22 is in the shape of a circular plate and is concentrically arranged with the roller 16. The diameter of the wing plate 22 is larger than the diameter of the roller 16 to limit the movement track of the rack 5. Of course, the aforementioned roller 16 can also be a grooved wheel adapted to the rack 5, and the rack 5 is installed in the groove of the grooved wheel.

[0046] At both ends of the side of the rack 5 facing the roller 16, there are downwardly extending limiting flap plates 23. It can be referred to Figure 7As shown, both ends of the rack 5 facing the roller 16 have protrusions extending downward, one side of the protrusion is flush with the end face of the rack 5 arranged along its movement direction, and a large transition arc is arranged between the other side and the bottom face of the rack 5. The protrusion constitutes a limit rocker 23 for limiting the extreme position of the extension and retraction of the rack 5, and the movement stroke of the roller 16 relative to the rack 5 is the space between the two protrusions. When the rack 5 is extended or retracted to the extreme position, the roller 16 and the limit rocker 23 at the corresponding end of the rack 5 are blocked and matched to prevent the rack 5 from further extending or retracting. Since the movement stroke of the output end of the linear drive mechanism 3 is usually greater than the set stroke of the rack 5, the movement of the rack 5 may exceed its set stroke. If the extreme stroke position of the rack 5 is not limited, it is easy to cause the rack 5 to be over-extended or retracted, thereby affecting other structures of the bus body. In addition, the linear drive mechanism 3 should avoid the output end running to the limit travel position of the output end during operation, otherwise the service life of the linear drive mechanism 3 may be affected, and the setting of the limit rocker 23 can avoid this situation.

[0047] A protective shell 24 is provided on the gear rack transmission mechanism. This can prevent debris from falling into the meshing part of the gear 4 and the rack 5 as much as possible, thereby ensuring the smooth operation of the gear rack transmission mechanism and providing a structural basis for ensuring the opening and closing speed of the pedal body 2. The opening and closing drive unit is provided on both sides of the pedal body 2 to reduce the load on a single opening and closing drive unit, thereby increasing the opening and closing speed of the pedal body 2. Of course, the opening and closing drive unit can also be provided only on one side or in the middle of the pedal body 2.

[0048] In addition, a bolt 25 and a bolt 25 driving mechanism for driving the bolt 25 to extend or retract may be provided on the pedal body 2. In the present embodiment, the pedal body 2 comprises a frame constructed from a rectangular steel pipe. Steel plates are welded, riveted or screwed on the surface of the frame to form a hollow pedal body 2. The surface of the pedal body 2 is paved with an anti-slip rubber pad or an anti-slip steel plate, and a warning color strip is paved at the edge to warn the edge of the pedal body 2. A bolt 25 and a bolt driving cylinder for driving the bolt 25 to extend and retract are slidably provided in the pedal body 2. A stopper 26 is provided at the position of the bus body corresponding to the bolt 25. Please refer to Figure 2As shown, when the pedal body 2 is retracted, the bolt 25 extends under the action of the bolt driving cylinder so as to engage and lock with the aforementioned stop 26, so that the pedal body 2 is kept in the retracted state. Such a setting can ensure that in scenarios such as when the bus is running and the pedal body 2 does not need to be opened, the pedal body 2 can be reliably fixed and locked in the flipped and closed position, thereby avoiding damage to surrounding personnel and property caused by accidental opening of the pedal body 2. In other embodiments, the pedal body 2 can also be kept in the flipped and closed state by the holding action of the linear drive mechanism 3. For example, if the linear drive mechanism 3 uses a cylinder, when the pedal body 2 is in the flipped and closed state, the cylinder is always in a pressure-holding state and keeps the rack 5 in the position where the pedal body 2 is flipped open. The gear 4 engaged with the rack 5 cannot rotate at this time, and thus the pedal body 2 is kept in the flipped and closed state.

[0049] An independent small door 27 is provided at the position of the pedal body 2 corresponding to the bus door. In this embodiment, a rectangular notch is provided at the position of the pedal body 2 corresponding to the door of the high-platform bus, and one vertical side of the independent small door 27 is hinged to the corresponding side of the rectangular notch. A latch 28 is provided between the free side of the independent small door 27 and the pedal body 2 to realize the opening and closing of the independent small door 27 relative to the pedal body 2. The setting of the independent small door 27 can provide a passage for people to get on and off the high-platform bus when the pedal body 2 is retracted. In actual application scenarios, since the driver usually boards the bus from the ground rather than from the high platform, the setting of the independent small door 27 facilitates the driver's boarding. In addition, when the pedal body 2 cannot be normally opened due to a failure or other unexpected situations occur, the setting of the independent small door 27 also provides a passage for the people on the bus to get on and off the vehicle without opening the pedal body 2.

[0050] Embodiment of the bus safety pedal of the present utility model:

[0051] The embodiment of the bus safety pedal of the present utility model is the same as the bus safety pedal described in the principle and embodiment of the aforementioned high-platform bus, so it will not be elaborated here.

[0052] The above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The scope of patent protection of the present utility model is subject to the claims. All equivalent structural changes made by using the description and drawings of the present utility model should be included in the protection scope of the present utility model by the same token.

Claims

1. A bus safety pedal, comprising a mounting base body and a pedal main body rotatably mounted on the mounting base body, and an opening and closing driving unit is arranged between the pedal main body and the mounting base body to drive the pedal main body to flip open and flip closed; characterized in that, The opening and closing drive unit includes a linear drive mechanism and a gear-rack transmission mechanism; the rack of the gear-rack transmission mechanism is in transmission connection with the output end of the linear drive mechanism, and the gear is relatively fixed in the rotation direction with the pedal body so that the two rotate synchronously.

2. The passenger car safety pedal according to claim 1, wherein, The rack is arranged below the gear; the installation base includes a base frame and a rack supporting structure arranged on the base frame, and the rack supporting structure is used for supporting and holding the rack in a position meshed with the gear.

3. The passenger car safety pedal according to claim 2, characterized in that, The installation end of the linear drive mechanism is hinged on the base frame, and the supporting surface of the rack supporting structure for supporting the rack is an arc surface.

4. The passenger car safety pedal according to claim 3, characterized in that, The rack supporting structure is a roller rotatably installed on the base frame.

5. The passenger car safety pedal according to claim 4, wherein Wing plates are arranged on both sides of the roller, and the dimension of the wing plate in any radial direction of the roller is larger than the maximum diameter of the roller, and the rack is clamped between the two wing plates.

6. The passenger car safety pedal according to claim 4, characterized in that, Limiting warping plates extending downward are arranged at both ends of the side of the rack facing the roller.

7. The bus safety pedal according to any one of claims 1-6, characterized in that, A protective shell is covered on the gear-rack transmission mechanism.

8. The passenger car safety pedal according to any one of claims 1-6, characterized in that, The opening and closing drive units are arranged on both sides of the pedal body.

9. The passenger car safety pedal according to any one of claims 1-6, characterized in that, The installation base further includes a bearing seat fixedly installed on the base frame, and the rotating shaft of the pedal body is fixedly installed in the bearing of the bearing seat.

10. A high-platform passenger vehicle, comprising a passenger vehicle main body and a passenger vehicle safety pedal disposed at the door of the passenger vehicle main body, characterized in that, The bus safety pedal is the bus safety pedal according to any one of claims 1-9.

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