Turnover stepping device for bus
By designing a flip-up step device, which uses a cylinder to drive the flip plate to open or close, the problem of passengers falling when getting off the bus is solved, and a safe and reliable passenger boarding and alighting process is achieved.
Patent Information
- Application Number
- CN202423268113.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-30
AI Technical Summary
When a bus stops at a station, the distance between the bus and the station makes it easy for passengers to fall when getting off. Current technology has not been able to effectively solve this problem.
Design a flip-up step device that uses a cylinder assembly to drive a flip plate to open or close, thereby blocking the gap between the vehicle body and the step and ensuring the safe disembarkation of passengers.
It effectively prevents passengers from falling when getting off the vehicle, improving safety, and absorbs vibration through a buffer structure to ensure stable operation of the device.
Smart Images
Figure CN223494411U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of step device technology, specifically a flip-up step device for buses. Background Technology
[0002] A bus, also known as a public bus or bus, is a motor vehicle that travels on fixed routes on city roads, with or without fixed schedules, to carry passengers.
[0003] Buses typically stop at bus stops. Due to varying driver skills, there is a distance between the bus and the platform when the bus stops. If passengers step between the bus and the platform when getting off, they may fall over. Therefore, a flip-up step device for buses is proposed. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] In view of the shortcomings of the prior art, this utility model provides a flip-up step device for buses to solve the problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a flip-up step device for a bus, comprising a frame assembly, a cylinder assembly, a flip-up frame, a flip-up drive shaft assembly, a bearing assembly, a positioning tube, a limiting assembly, and a protective cover. The cylinder assembly is disposed on both sides inside the frame assembly, the flip-up drive shaft assembly is disposed on one side of the rear end inside the frame assembly, the flip-up frame is disposed at the front end of the flip-up drive shaft assembly, the bearing assembly is disposed on one side of the output end of the cylinder assembly, the positioning tube is disposed at the front end inside the frame assembly, the limiting assemblies are disposed on both sides of the rear end of the frame assembly, and the protective cover is disposed outside the limiting assemblies. The frame assembly includes a front limiting tube, and the outer side of the front limiting tube... A front limiting plate is provided, with a left side plate at the left end and a right side plate at the right end. A left cylinder rear mounting plate, a left bottom plate, and a left frame shaft mounting plate are provided on one side of the interior of the left side plate. A left frame shaft mounting hole is provided inside the left frame shaft mounting plate. A right cylinder rear mounting plate, a right bottom plate, and a right frame shaft mounting plate are provided on one side of the interior of the right side plate. A cylinder fixing rib is installed between the left and right cylinder rear mounting plates. A right frame shaft mounting hole is provided inside the right frame shaft mounting plate. Frame shaft nut mounting holes are provided on one side of the rear end of both the left and right side plates. A front tube is provided at the rear end of both the left and right bottom plates.
[0008] Preferably, the cylinder assembly includes a cylinder, a cylinder rear mounting bolt is provided at the tail of the cylinder, a throttle valve is provided on one side of the tail of the cylinder, a cylinder front bracket is provided at the front of the cylinder, a floating joint is installed on the outside of the cylinder front bracket at the output end of the cylinder, a rack is installed on the outside of the floating joint, a rack limiting groove is provided inside the rack, and a front limiting surface and a rear limiting surface are respectively provided on the front and rear sides of the rack limiting groove.
[0009] Preferably, the flip-plate frame includes a square shaft, with second tubes provided on both the front and rear sides of the lower end of the square shaft, four fourth tubes equidistantly provided on the lower end of the square shaft, a third tube provided on the lower end of the fourth tubes, a first tube provided on the upper end of the fourth tubes on one side of the lower end of the square shaft, splined shafts provided on both ends of the square shaft, the square shaft and the first tubes being connected by bolts, rivet holes provided inside the fourth tubes, and a flip-plate shaft gear installed on the outside of the splined shafts.
[0010] Preferably, the flip-plate drive shaft assembly includes a base plate, a top plate on the outside of the base plate, double countersunk rivets inside the base plate, a first buffer block installed on one side of the inside of the base plate via a first pressure strip, a front edge on the upper end of the base plate, a second buffer block installed inside the front edge via a second pressure strip, end caps on both ends of the front edge, a drive shaft on the lower end of the base plate, gears on both ends of the drive shaft, bearing seats on the outside of the gears, the bearing seats being connected to the left and right side plates respectively, a first bearing inside the bearing seat, and a bearing cover inside the bearing seat.
[0011] Preferably, the bearing assembly includes a frame shaft, a nut and a flat washer are installed on the left side of the frame shaft, a bearing retaining ring, a second bearing and a bearing spacer are provided on the other side of the frame shaft, and a bracket is provided at the lower end of the frame shaft, and the bracket is connected to the left base plate and the right base plate.
[0012] Preferably, the limiting component includes a limiting block, a buffer body is provided on one side of the upper end of the limiting block, and an adjusting shim is installed between the limiting block and the buffer body.
[0013] Preferably, the top plate is provided with an anti-slip component on its exterior. The anti-slip component includes a groove, which is disposed on both sides inside the top plate. An iron strip is disposed inside the groove. An anti-slip pad is disposed on the exterior of the top plate, and magnets are disposed on both sides of the rear end of the anti-slip pad.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, the present invention provides a flip-up step device for buses, which has the following advantages:
[0016] 1. This utility model uses a throttle valve at the rear of the cylinder for air intake and a throttle valve at the front for air exhaust. Under the influence of the gas, the cylinder rod extends outwards. The cylinder rod drives the rack forward. The transmission shaft gear rotates in the opposite direction to the rack, while the flap shaft gear rotates in the same direction as the rack. The flap opens, and one end of the flap rests on the step. This ensures that when passengers walk from the bus to the step or from the step to the bus, the gap between the step and the bus body is blocked by the flap, thus improving safety and solving the problem mentioned in the background art—preventing passengers from stepping into a gap and falling.
[0017] 2. This utility model uses a throttle valve at the front of the cylinder to intake air and a throttle valve at the rear to exhaust air. At this time, the cylinder rod retracts under the action of the gas. The cylinder rod drives the rack to move backward. The transmission shaft gear rotates in the opposite direction to the rack, while the flap shaft gear rotates in the same direction as the rack, closing the flap and thus retracting it. The bus then departs from the station. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the frame components of this utility model;
[0020] Figure 3 This is a schematic diagram of the cylinder assembly of this utility model;
[0021] Figure 4 This is a schematic diagram of the flip-plate frame of this utility model;
[0022] Figure 5 This is a schematic diagram of the flap drive shaft assembly of this utility model;
[0023] Figure 6 This is a schematic diagram of the bearing assembly of this utility model;
[0024] Figure 7 This is a schematic diagram of the limiting component of this utility model;
[0025] Figure 8 This is a schematic diagram of the anti-slip component of this utility model.
[0026] In the diagram: 1. Frame assembly; 2. Cylinder assembly; 3. Flip plate frame; 4. Flip plate drive shaft assembly; 5. Bearing assembly; 6. Positioning tube; 7. Limiting assembly; 8. Protective cover; 9. Anti-slip assembly;
[0027] 101. Front limit tube; 102. Front limit plate; 103. Cylinder fixing rib; 104. Front tube; 105. Left side base plate; 106. Right side base plate; 107. Left side cylinder rear mounting plate; 108. Right side cylinder rear mounting plate; 109. Left side plate; 110. Right side plate; 111. Left side frame shaft mounting hole; 112. Right side frame shaft mounting hole; 113. Frame shaft nut mounting hole; 114. Left frame shaft mounting plate; 115. Right frame shaft mounting plate;
[0028] 201. Rear mounting bolt for cylinder; 202. Cylinder; 203. Throttle valve; 204. Front support for cylinder; 205. Floating joint; 206. Rack; 207. Rack limiting groove; 208. Rear limiting surface; 209. Front limiting surface;
[0029] 301. Square shaft; 302. First tube; 303. Third tube; 304. Fourth tube; 305. Bolt; 306. Rivet hole; 307. Splined shaft; 308. Second tube; 309. Flip plate shaft gear;
[0030] 401. Base plate; 402. Top plate; 403. First buffer block; 404. Double countersunk rivet; 405. Second buffer block; 406. Second pressure strip; 407. First pressure strip; 408. Drive shaft; 409. Gear; 410. Bearing housing; 411. First bearing; 412. Bearing cover; 413. Front; 414. End cover;
[0031] 501. Frame shaft; 502. Nut; 503. Flat washer; 504. Bearing retaining ring; 505. Second bearing; 506. Bearing spacer; 507. Bracket;
[0032] 701. Limiting block; 702. Buffer body; 703. Adjusting shim;
[0033] 901. Anti-slip foot pad; 902. Magnet; 903. Groove; 904. Iron strip. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] This utility model provides a technical solution: a flip-up step device for buses. Please refer to [link / reference]. Figure 1 - Figure 8The system includes a frame assembly 1, a cylinder assembly 2, a flap frame 3, a flap drive shaft assembly 4, a bearing assembly 5, a positioning tube 6, a limiting assembly 7, and a protective cover 8. The cylinder assembly 2 is located on both sides inside the frame assembly 1. The flap drive shaft assembly 4 is located on one side of the rear end inside the frame assembly 1. The flap frame 3 is located at the front end of the flap drive shaft assembly 4. The bearing assembly 5 is located on one side of the output end of the cylinder assembly 2. The positioning tube 6 is located at the front end inside the frame assembly 1. The limiting assembly 7 is located on both sides of the rear end of the frame assembly 1. The protective cover 8 is located outside the limiting assembly 7. The frame assembly 1 includes a front limiting tube 101. A front limiting plate 102 is located outside the front limiting tube 101. A left side plate 109 is located at the left end of the front limiting plate 102, and a right side plate 110 is located at the right end of the front limiting plate 102. A protective cover 8 is located on one side inside the left side plate 109. The frame assembly 1 comprises a left cylinder rear mounting plate 107, a left base plate 105, and a left frame shaft mounting plate 114. The left frame shaft mounting plate 114 has a left frame shaft mounting hole 111 inside. The right side plate 110 has a right cylinder rear mounting plate 108, a right base plate 106, and a right frame shaft mounting plate 115 inside one side. A cylinder fixing rib 103 is installed between the left cylinder rear mounting plate 107 and the right cylinder rear mounting plate 108. The right frame shaft mounting plate 115 has a right frame shaft mounting hole 112 inside. The left plate 109 and the right plate 110 both have a frame shaft nut mounting hole 113 on one side of their rear ends. The left base plate 105 and the right base plate 106 have a front tube 104 inside their rear ends. The frame assembly 1 has an overall assembled structure, which avoids the problem of poor product consistency caused by the large deformation of traditional welding.
[0036] Please see Figure 1 and Figure 3The cylinder assembly 2 includes a cylinder 202. A cylinder rear mounting bolt 201 is provided at the tail of the cylinder 202. A throttle valve 203 is provided on one side of the tail of the cylinder 202. A cylinder front bracket 204 is provided at the front of the cylinder 202. A floating joint 205 is installed on the outside of the cylinder front bracket 204 at the output end of the cylinder 202. A rack 206 is installed on the outside of the floating joint 205. A rack limiting groove 207 is provided inside the rack 206. A front limiting surface 209 and a rear limiting surface 208 are respectively provided on the front and rear sides of the rack limiting groove 207. The floating joint 205 can rotate around the centerline. At a certain angle, when the cylinder 202 drives the rack 206 to run and mesh with the gear 409, the rotation of the floating joint 205 can effectively compensate for the error caused by the accumulation of tolerances, ensuring smooth transmission between the rack 206 and the gear 409. The stroke of the cylinder 202 can be controlled by the rear limit surface 208 and the front limit surface 209 to ensure the running angle of the flipping guide plate. When the flipping guide plate is at its minimum position, the buffer body 702 absorbs the vibration. When the flipping guide plate is at its maximum position, the buffer block absorbs the vibration. When the cylinder 202 extends, the flip plate opens. When the cylinder retracts, the flip plate closes. When the vehicle is closed, the cylinder is in the retracted position, protecting the cylinder rod.
[0037] Please see Figure 1 , Figure 4 and Figure 5 The flip-up frame 3 includes a square shaft 301. Second tubes 308 are provided on both the front and rear sides of the lower end of the square shaft 301. Four fourth tubes 304 are equidistantly arranged at the lower end of the square shaft 301. A third tube 303 is provided at the lower end of each fourth tube 304. A first tube 302 is provided on one side of the upper end of the fourth tube 304 located at the lower end of the square shaft 301. Splined shafts 307 are provided at both ends of the square shaft 301. The square shaft 301 and the first tube 302 are connected by bolts 305. Rivet holes 306 are provided inside the fourth tube 304. A flip-up shaft gear 309 is installed on the outside of the splined shaft 307. The flip-up frame 3 is a stainless steel welded component. To reduce welding deformation, bolts 305 are added between the square tube and the square shaft 301 for fixation. The square tube is a single integral part, ensuring that the holes on the frame are aligned with the holes on the top and bottom plates.
[0038] Please see Figure 1 and Figure 5The flap drive shaft assembly 4 includes a base plate 401, a top plate 402 on the outside of the base plate 401, double countersunk rivets 404 inside the base plate 401, a first buffer block 403 mounted on one side of the inside of the base plate 401 via a first pressure strip 407, a front edge 413 at the upper end of the base plate 401, a second buffer block 405 mounted inside the front edge 413 via a second pressure strip 406, end caps 414 at both ends of the front edge 413, a drive shaft 408 at the lower end of the base plate 401, gears 409 at both ends of the drive shaft 408, and a... There is a bearing seat 410, which is connected to the left side plate 109 and the right side plate 110 respectively. The bearing seat 410 has a first bearing 411 inside and a bearing cover 412 inside. When the flip step is opened, the second buffer block 405 contacts the ground and can contact the ground at different heights. The aluminum plates are fixed on the top and bottom with double countersunk rivets 404. The top plate 402 is a patterned aluminum plate with bent sides, which has an anti-slip function. The bottom plate 401 is an aluminum plate, the front 413 is an aluminum profile with a beveled front end for easy contact with the ground, and the rear is a U-shaped groove to wrap the frame.
[0039] Please see Figure 1 and Figure 6 The bearing assembly 5 includes a frame shaft 501. A nut 502 and a flat washer 503 are installed on the left side of the frame shaft 501. A bearing retaining ring 504, a second bearing 505, and a bearing spacer 506 are provided on the other side of the frame shaft 501. A bracket 507 is provided at the lower end of the frame shaft 501, and the bracket 507 is connected to the left base plate 105 and the right base plate 106. The transmission shaft 408 and the square shaft 301 are installed on the same bearing seat base to ensure the stability of the meshing of the two gears.
[0040] Please see Figure 1 and Figure 7 The limiting component 7 includes a limiting block 701, a buffer body 702 is provided on one side of the upper end of the limiting block 701, and an adjusting shim 703 is installed between the limiting block 701 and the buffer body 702 for adjusting the compression amount of the buffer body 702.
[0041] Please see Figure 1 and Figure 8 The top plate 402 is provided with an anti-slip component 9 on its exterior. The anti-slip component 9 includes a groove 903, which is located on both sides inside the top plate 402. An iron strip 904 is provided inside the groove 903. The top plate 402 is provided with an anti-slip pad 901 on its exterior. Magnets 902 are provided on both sides of the rear end of the anti-slip pad 901. The anti-slip pad 901 is a silicone anti-slip pad. The silicone anti-slip pad has good anti-slip and corrosion resistance and can maintain stable performance in humid and corrosive environments.
[0042] In this scheme: When the guide plate needs to be opened, air enters through the rear throttle valve 203 of cylinder 202 and exits through the front throttle valve 203. At this time, the cylinder rod extends under the action of the gas, driving the rack 206 forward. The gear 409 of the transmission shaft 408 rotates in the opposite direction to the rack 206, while the gear 309 of the flap shaft rotates in the same direction as the rack 206, opening the flap. When the guide plate needs to be closed, air enters through the front throttle valve 203 of cylinder 202 and exits through the rear throttle valve 203. At this time, the cylinder rod retracts under the action of the gas, driving the rack 206 backward. The gear 409 of the transmission shaft 408 rotates in the opposite direction to the rack 206, while the gear 309 of the flap shaft rotates in the same direction as the rack 206, closing the flap.
[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A flip-up step device for a bus, comprising a frame assembly (1), a cylinder assembly (2), a flip-up frame (3), a flip-up drive shaft assembly (4), a bearing assembly (5), a positioning tube (6), a limiting assembly (7), and a protective cover (8), characterized in that: The cylinder assembly (2) is located on both sides inside the frame assembly (1), the flip-plate drive shaft assembly (4) is located on one side of the rear end inside the frame assembly (1), the flip-plate frame (3) is located at the front end of the flip-plate drive shaft assembly (4), the bearing assembly (5) is located on one side of the output end of the cylinder assembly (2), the positioning tube (6) is located at the front end inside the frame assembly (1), the limiting assembly (7) is located on both sides of the rear end of the frame assembly (1), the protective cover (8) is located outside the limiting assembly (7), the frame assembly (1) includes a front limiting tube (101), a front limiting plate (102) is provided outside the front limiting tube (101), a left side plate (109) is provided at the left end of the front limiting plate (102), a right side plate (110) is provided at the right end of the front limiting plate (102), and the left side plate (109) is located inside the left side plate (109). The left side is provided with a left cylinder rear mounting plate (107), a left bottom plate (105) and a left frame shaft mounting plate (114). The left frame shaft mounting plate (114) is provided with a left frame shaft mounting hole (111). The right side plate (110) is provided with a right cylinder rear mounting plate (108), a right bottom plate (106) and a right frame shaft mounting plate (115) on one side. A cylinder fixing rib (103) is installed between the left cylinder rear mounting plate (107) and the right cylinder rear mounting plate (108). The right frame shaft mounting plate (115) is provided with a right frame shaft mounting hole (112) on the inside. The left side plate (109) and the right side plate (110) are both provided with a frame shaft nut mounting hole (113) on one side of the rear end. The left bottom plate (105) and the right bottom plate (106) are provided with a front tube (104) at the rear end.
2. The flip-up step device for a bus according to claim 1, characterized in that: The cylinder assembly (2) includes a cylinder (202), a cylinder rear mounting bolt (201) is provided at the tail of the cylinder (202), a throttle valve (203) is provided on one side of the tail of the cylinder (202), a cylinder front bracket (204) is provided at the front end of the cylinder (202), a floating joint (205) is installed on the outside of the cylinder front bracket (204) at the output end of the cylinder (202), a rack (206) is installed on the outside of the floating joint (205), a rack limiting groove (207) is provided inside the rack (206), and a front limiting surface (209) and a rear limiting surface (208) are respectively provided on the front and rear sides of the rack limiting groove (207).
3. A flip-up step device for a bus according to claim 2, characterized in that: The flip frame (3) includes a square shaft (301), with a second tube (308) on both the front and rear sides of the lower end of the square shaft (301), four fourth tubes (304) equidistantly arranged at the lower end of the square shaft (301), a third tube (303) at the lower end of the fourth tube (304), a first tube (302) on the side of the upper end of the fourth tube (304) located at the lower end of the square shaft (301), a spline shaft (307) at both ends of the square shaft (301), the square shaft (301) and the first tube (302) being connected by bolts (305), a rivet hole (306) inside the fourth tube (304), and a flip shaft gear (309) installed on the outside of the spline shaft (307).
4. A flip-up step device for a bus according to claim 3, characterized in that: The flap drive shaft assembly (4) includes a base plate (401), a top plate (402) is provided on the outside of the base plate (401), double countersunk rivets (404) are provided inside the base plate (401), a first buffer block (403) is installed on one side of the inside of the base plate (401) through a first pressure strip (407), a front edge (413) is provided at the upper end of the base plate (401), a second buffer block (405) is installed inside the front edge (413) through a second pressure strip (406), and the front edge (413) Both ends of the base plate (401) are provided with end caps (414). The lower end of the base plate (401) is provided with a drive shaft (408). Both ends of the drive shaft (408) are provided with gears (409). The outer side of the gears (409) is provided with bearing seats (410). The bearing seats (410) are connected to the left side plate (109) and the right side plate (110) respectively. The bearing seats (410) are provided with a first bearing (411) inside. The bearing seats (410) are provided with a bearing cover (412) inside.
5. A flip-up step device for a bus according to claim 4, characterized in that: The bearing assembly (5) includes a frame shaft (501), a nut (502) and a flat washer (503) are installed on the left side of the frame shaft (501), and a bearing retainer (504), a second bearing (505) and a bearing spacer (506) are provided on the other side of the frame shaft (501). A bracket (507) is provided at the lower end of the frame shaft (501), and the bracket (507) is connected to the left base plate (105) and the right base plate (106).
6. A flip-up step device for a bus according to claim 5, characterized in that: The limiting component (7) includes a limiting block (701), a buffer body (702) is provided on one side of the upper end of the limiting block (701), and an adjusting shim (703) is installed between the limiting block (701) and the buffer body (702).
7. A flip-up step device for a bus according to claim 5, characterized in that: The top plate (402) is provided with an anti-slip component (9) on the outside. The anti-slip component (9) includes a groove (903). The groove (903) is located on both sides inside the top plate (402). An iron strip (904) is provided inside the groove (903). An anti-slip pad (901) is provided on the outside of the top plate (402). Magnets (902) are provided on both sides of the rear end of the anti-slip pad (901).