Pedal assembly for locomotive foot valve capable of being quickly disassembled and assembled

Abstract

The utility model belongs to the technical field of pedals of electric locomotives, and particularly relates to a pedal assembly used for a locomotive and capable of quickly disassembling and assembling a pedal valve, which comprises a bottom frame, an opening area is arranged on the upper side of the bottom frame, a pedal is fixedly connected to the upper side of the bottom frame, and at least one mounting groove is arranged on the pedal. A pedal valve connecting structure is arranged on the pedal and located on the outer side of the mounting groove, at least one data line connector is fixedly connected to the interior of the bottom frame, and the pedal valve connecting structure comprises at least two fifth threaded holes which are formed in the pedal and located in the peripheral side of the mounting groove. According to the foot valve connecting structure, when the foot valve is disassembled and assembled, only the foot valve needs to be disassembled or assembled from the foot valve connecting structure, the bottom frame does not need to be disassembled firstly, and then the pedal plate does not need to be disassembled or assembled from the upper side of the bottom frame, so that the working procedures for disassembling and assembling the foot valve are greatly reduced, and the time efficiency of disassembling and assembling the foot valve is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of footrests for electric locomotives, and particularly relates to a footrest assembly for a locomotive with a foot-operated valve that can be quickly disassembled and assembled. Background Art

[0002] Diesel locomotives and electric locomotives are advanced locomotives used in Chinese railways and are widely used in the traction tasks of passenger and heavy-haul freight trains.

[0003] When operating a locomotive, a locomotive driver often uses a foot-operated valve assembly. Taking the HXD3 series locomotives as an example, there are three foot-operated valve assemblies, namely, a vigilance valve, a sanding valve, and a whistle valve, installed under the console of the locomotive driver's cab of the HXD3 series locomotives.

[0004] Under current conditions, during the operation of the locomotive, the driver steps on the vigilance pedal once every 15 seconds on average. Due to the frequent use of the foot-operated valve, it is prone to failure. During the operation of the locomotive, once the vigilance foot-operated valve fails, it will cause the failure of the unattended vigilance function, resulting in serious problems such as stopping in the middle of the journey and affecting the transportation order. To ensure the good condition of the foot-operated valve, it is necessary to regularly disassemble the foot-operated valve and replace the internal micro-switch.

[0005] To reduce potential safety hazards, it is necessary to frequently disassemble, assemble, repair, or replace the foot-operated valve. This footrest is under the console, and the distance between the console and the driver's seat is relatively close, with a narrow space. When disassembling, assembling, repairing, or replacing the foot-operated valve, it is necessary to first rotate the driver's seat in the cab, fully lift the armrests on both sides of the seat, and fold the backrest. Then, remove the bolts on both sides of the footrest, lift the footrest, disconnect the connecting wires, take it out, place the footrest aside, and then remove the fixing bolts of the foot-operated valve one by one.

[0006] In this process, since each foot-operated valve under the locomotive driver's cab in the prior art is installed and fixed on the footrest with 4 bolts, and the nut is not fixed on the stainless-steel footrest, it is inconvenient to install. (There are three foot-operated valves, namely, vigilance, sanding, and whistle). After the foot-operated valve is installed, 12 bolts are used to fix both sides of the stainless-steel footrest on the footrest bracket. Each time the foot-operated valve is disassembled and assembled, all the bolts must be disassembled and assembled once, which greatly affects the time efficiency of disassembling and assembling the foot-operated valve.

[0007] The original design of the footrest assembly has a slope of 70 degrees, which does not conform to ergonomics. When a person sits on the seat and naturally places their feet on the footrest, they are prone to fatigue after a long time. Summary of the Utility Model

[0008] The object of the present utility model is to provide a foot pedal assembly for a locomotive that can quickly disassemble and assemble a foot valve. It only needs to remove or install the foot valve from the foot valve plate connection structure, without first disassembling the bottom frame and then removing or installing the foot pedal from the upper side of the bottom frame. Now, the procedures for disassembling and assembling the foot valve are greatly reduced, effectively improving the time efficiency of disassembling and assembling the foot valve.

[0009] The technical solution adopted by the present utility model is as follows:

[0010] A foot pedal assembly for a locomotive that can quickly disassemble and assemble a foot valve, including a bottom frame. An opening area is provided on the upper side of the bottom frame. A foot pedal is fixedly connected to the upper side of the bottom frame. At least one installation groove is provided on the foot pedal. A foot valve connection structure is provided on the foot pedal and outside the installation groove. At least one data line connector is fixedly connected inside the bottom frame.

[0011] Further, the foot valve connection structure includes at least two fifth threaded holes provided on the foot pedal and around the installation groove.

[0012] Further, the foot pedal includes a fixing plate, which is screwed to the rear end of the upper side of the bottom frame. The front end of the fixing plate is installed with a pedal body through a rotating connector. The installation groove and the fifth threaded holes are both provided on the pedal body. The position of the pedal body away from the fixing plate is screwed to the bottom frame.

[0013] Further, a reinforcing rib is fixedly connected to the lower side of the pedal body.

[0014] Further, the foot pedal further includes a front pedal, and the rear end of the front pedal is screwed to the front end of the upper side of the bottom frame.

[0015] Further, flat areas are provided on the front end of the upper side of the bottom frame and on both sides of the first threaded hole. The rear end of the front pedal is screwed to the upper side of the flat area. Inclined areas are provided on the rear end of the upper side of the bottom frame and on both sides of the first threaded hole. The fixing plate is screwed to the upper side of the inclined area.

[0016] Further, first threaded holes are provided on both flat areas. A first through hole for a nail is provided at a position near the rear end of the front pedal;

[0017] Second threaded holes are provided at positions near the front end of both inclined areas. Two second through holes for nails opposite to the first threaded holes are provided at the position of the pedal body away from the fixing plate;

[0018] Third threaded holes are provided at positions near the rear end of both inclined areas. Two third through holes for nails opposite to the third threaded holes are provided on the fixing plate.

[0019] Further, the footrest further includes a wind shield. Two fourth threaded holes are formed in the fixing plate, and two waist slots opposite to the fourth threaded holes are formed in the wind shield.

[0020] The technical effects achieved by the present utility model are as follows:

[0021] The present utility model connects the foot valve through the foot valve connection structure provided on the footrest. When disassembling and assembling the foot valve, it is only necessary to remove or install the foot valve from the foot valve connection structure, without first disassembling the bottom frame and then removing or installing the footrest from the upper side of the bottom frame, greatly reducing the procedures for disassembling and assembling the foot valve and effectively improving the time efficiency of disassembling and assembling the foot valve. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the present utility model;

[0023] Figure 2 is a schematic structural diagram of the pedal body of the present utility model after being opened;

[0024] Figure 3 is an exploded structural diagram of the present utility model;

[0025] Figure 4 is a sectional side view of the present utility model.

[0026] In the drawings, the list of components represented by each reference numeral is as follows:

[0027] 1. Bottom frame; 2. Fixing plate; 3. Pedal body; 4. Installation groove; 5. Front pedal; 6. Wind shield; 7. Reinforcing rib; 8. Terminal; 9. Flat area; 10. Inclined area; 11. Opening area; 12. Rotating connecting piece; 13. First threaded hole; 14. Second threaded hole; 15. Third threaded hole; 16. First through-hole for nail; 17. Second through-hole for nail; 18. Third through-hole for nail; 19. Waist slot; 20. Fourth threaded hole; 21. Fifth threaded hole. Detailed Embodiments

[0028] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the specific scope of protection requested by the present utility model.

[0029] As Figures 1-4As shown, the pedal assembly includes a bottom frame 1. An opening area 11 is provided on the upper side of the bottom frame 1. The opening area 11 is a rectangular opening provided on the upper side of the bottom frame 1. The operator's hand can enter the inside of the bottom frame 1 through the rectangular opening for operation, which is used to realize the function of quick disassembly and assembly of the pedal and facilitate the inspection of the external lines of the pedal. The external dimensions of the bottom frame 1 are the same as those of the existing pedal assembly and can be directly installed in the reserved installation area of the locomotive;

[0030] A pedal is fixedly connected to the upper side of the bottom frame 1 and is located above the opening area 11. The pedal can cover the opening area 11. Its fixing method can be snap connection or screw connection, preferably screw connection. After the fixed connection, the stability is good and it is convenient to disassemble;

[0031] As Figures 1-2 shown, at least one mounting groove 4 is provided on the pedal. The number of mounting grooves 4 is preferably three. A pedal valve connection structure is provided on the pedal and outside the mounting groove 4. The pedal valve is installed on the pedal valve connection structure. At least one data line connector is fixedly connected to the inside of the bottom frame 1. At this time, the wire of the pedal valve extends into the inside of the bottom frame 1 through the mounting groove 4 and is electrically connected to the data line connector. When disassembling and assembling the pedal valve, only the pedal valve needs to be removed or installed from the pedal valve connection structure, and there is no need to remove or install the pedal from the upper side of the bottom frame 1. This greatly reduces the working procedures when disassembling and assembling the pedal valve, effectively improving the time efficiency of disassembling and assembling the pedal valve. And because there is no need to remove the pedal, there will be no phenomenon of being scratched by the sharp edge of the pedal during the process of removing the pedal, which can ensure the operation safety. Similarly, because there is no need to remove the pedal, during the operation process, the operator will not contact the lines under the pedal, reducing the quality hidden danger of squeezing the wires.

[0032] The pedal has data connection lines for three pedal valves: vigilance, sand scattering, and whistle. In the prior art, there is no fixed connection inside the bottom frame 1. It is placed on the ground arbitrarily, and the data line of each pedal valve is directly connected to the data line inside the vehicle, which is easy to disconnect. When frequently disassembling, inspecting, and replacing the pedal valve, over time, the connection head must be replaced. The space is narrow and it is not easy to replace. Therefore, in this technical solution, a wiring post 8 is fixedly connected inside the bottom frame 1. Its fixing method can be welding. The data line connector inside the locomotive can be screw-connected to the wiring post 8. An external wiring connection head adapted to the mounting groove 4 is installed on the pedal. The external wiring connection head is electrically connected to a data connection line, and the data connection line is electrically connected to the data line connector inside the vehicle. At this time, the connection head inside the vehicle (which can never be disassembled) is directly fixedly connected to the connection line of each pedal valve through the external wiring connection head. During maintenance, only the external wiring connection head of the pedal valve needs to be disassembled to reduce the phenomenon of the data line being disconnected due to arbitrary movement on the ground.

[0033] The foot valve connection structure can be a screw connection structure, a snap connection structure or other detachable connection structures. In this technical solution, the screw connection structure is preferably used, and specifically as Figures 1-2 shown, the foot valve connection structure includes at least two fifth threaded holes 21 opened on the foot pedal and located on the periphery of the installation groove 4. The number of the fifth threaded holes 21 is preferably four. At this time, by screwing the screw connecting the foot valve into the fifth threaded hole 21, the installation of the foot valve can be completed, and by disassembling the screw, the removal of the foot valve can be completed, thus effectively improving the time efficiency of the disassembly and assembly of the foot valve and making the foot valve have better stability after installation.

[0034] As Figures 1-3 shown, in order to reduce the difficulty of overhauling the foot pedal assembly in this technical solution, the structure of the foot pedal is further improved. Specifically, the foot pedal includes a fixing plate 2, and the fixing plate 2 is screwed to the rear end of the upper side of the bottom frame 1. The front end of the fixing plate 2 is installed with a pedal body 3 through a rotating connector 12, so that the fixing plate 2 and the pedal body 3 are rotatably connected. The rotating connector 12 can be a hinge or a rotating shaft. When the pedal body 3 abuts against the upper side of the bottom frame 1, the opening area 11 can be sealed. The installation groove 4 and the fifth threaded hole 21 are both opened on the pedal body 3. The position of the pedal body 3 far from the fixing plate 2 is screwed to the bottom frame 1. At this time, by disassembling the two screws on the pedal body 3, the pedal body 3 can be rotated to open the pedal body 3, and the data line connector inside the bottom frame 1 and the wiring part of the foot valve can be overhauled, reducing the number of screws that need to be disassembled and assembled when disassembling and assembling the foot pedal during the overhaul process, and reducing the difficulty of overhauling the foot pedal assembly.

[0035] At the same time, as Figure 2 shown, in order to strengthen the strength of the pedal body 3, a reinforcing rib 7 is fixedly connected to the lower side of the pedal body 3, and its fixing method is preferably welding. Since the reinforcing rib 7 is arranged on the lower side of the installation groove 4, it will not cause obstacles to the operator's feet.

[0036] At the same time, the foot pedal can also include a front pedal 5. The rear end of the front pedal 5 is screwed to the front end of the upper side of the bottom frame 1. By disassembling the screws of the front pedal 5 and opening the front pedal 5, the front end of the opening area 11 is in an open state, and the data line connector inside the bottom frame 1 can also be directly overhauled, reducing the number of screws that need to be disassembled and assembled when disassembling and assembling the foot pedal during the overhaul process, and reducing the difficulty of overhauling the foot pedal assembly.

[0037] The foot pedal assembly is installed between the driver's operation console and the seat, where the space is narrow. The original design of the foot pedal has a slope of 70 degrees. After a long time of stepping on it, there will be discomfort and fatigue. Some units added a platform to the foot pedal assembly to reduce discomfort and fatigue. However, due to the inappropriate size between the two, the platform often moves, damaging the floor surface and causing economic losses. Moreover, when replacing the foot valve, the platform needs to be removed, further increasing the difficulty of replacing the foot valve.

[0038] To solve the above problems, this technical solution further improves the foot pedal assembly, specifically as Figures 2-4 shown. A flat area 9 is provided at the front end of the upper side of the bottom frame 1 and on both sides of the first threaded hole 13. The rear end of the front pedal 5 is screwed to the upper side of the flat area 9. A bevel area 10 is provided at the rear end of the upper side of the bottom frame 1 and on both sides of the first threaded hole 13. The fixing plate 2 is screwed to the upper side of the bevel area 10. At this time, through the setting of the bevel area 10, the angle of the foot valve after installation can be adjusted, making the installation angle of the foot valve more suitable for the operator.

[0039] Among them, the inclination angle of the bevel area 10 is 160° - 170°, preferably 164°, that is, the included angle between the bevel area 10 and the horizontal plane is 16°. In this way, the fixing plate 2 and the pedal body 3 fixed on the upper side of the bevel area 10 also maintain an inclination angle of 164°. At this time, when the locomotive driver steps on the foot pedal for operation, discomfort and fatigue can be reduced.

[0040] Please refer to Figures 1-3 shown. The specific method of screw connection is disclosed here. Specifically, first threaded holes 13 are provided on both flat areas 9. A first through-hole 16 is provided at a position near the rear end of the front pedal 5. When the rear end of the front pedal 5 is placed on the upper side of the flat area 9, a screw is passed through the first through-hole 16 and threadedly connected to the inside of the first threaded hole 13, and then the front pedal 5 can be screwed to the flat area 9. Removing this screw can complete the removal of the front pedal 5.

[0041] Second threaded holes 14 are provided at positions near the front end of both bevel areas 10. Two second through-holes 17 opposite to the first threaded holes 13 are provided at a position of the pedal body 3 far from the fixing plate 2. When the pedal body 3 covers the upper side of the bevel area 10, a screw is passed through the second through-hole 17 and threadedly connected to the inside of the second threaded hole 14, and then the front end of the pedal body 3 can be screwed to the bevel area 10. Removing this screw can release the locking of the front end of the pedal body 3. At this time, the pedal body 3 can be rotated.

[0042] Third threaded holes 15 are provided at positions near the rear ends on both of the two inclined surface areas 10. Two third pin holes 18 opposite to the third threaded holes 15 are provided on the fixing plate 2. When the fixing plate 2 is placed on the upper side of the inclined surface area 10, a screw is passed through the third pin hole 18 and threadedly connected inside the third threaded hole 15, and thus the fixing plate 2 can be screwed to the inclined surface area 10, so that the fixing plate 2 will not move back and forth to cause frictional damage to the ground. By removing this screw, the removal of the fixing plate 2 can be completed.

[0043] In this technical solution, the 4 nuts used for the (three foot valves of vigilance, sanding, and whistle) foot valve are changed to stud type and welded on the stainless steel pedal to form fifth threaded holes 21. The locomotive's quickly detachable foot valve plate is changed to a fixing plate 2 and a pedal body 3 movably installed on the bottom frame 1, and is fixed to the bottom frame 1 with 4 bolts. When repairing the foot valve, only the two bolts fixing the pedal body 3 are disassembled, and then the pedal body 3 is lifted, and then the foot valve data cable and the in-vehicle data cable can be taken out for maintenance.

[0044] In the prior art, there is a gap between the foot pedal assembly of the locomotive foot valve and the front knee furnace panel under the operation console. Wind enters during driving; it has no impact in summer, but cold wind drills in winter, reducing the temperature in the driver's cab; for this reason, we have further improved the foot pedal. For details, please refer to Figure 1 and Figures 3-4 As shown, the foot pedal may further include a wind shield 6 fixedly connected to the fixing plate 2, and its fixing method is screw connection, that is, two fourth threaded holes 20 are provided on the fixing plate 2, and two waist slots 19 opposite to the fourth threaded holes 20 are provided on the wind shield 6. At this time, a double-headed bolt is passed through the waist slot 19 and threadedly connected inside the fourth threaded hole 20, and then the wind shield 6 is slid back and forth to adjust the position of the wind shield 6 until the rear end of the wind shield 6 abuts against the vehicle body, so as to fill and seal the gap between the front end of the bottom frame 1 and the locomotive body, blocking the wind source from entering the driver's cab. After the adjustment is completed, a nut is threadedly connected at a position outside the double-headed bolt and above the wind shield 6, and the position of the wind shield 6 is locked by the nut. During driving in summer, the wind shield 6 can be moved away to let air in, so that the air flow enters the driver's cab to adjust the air circulation. During driving in winter, the wind shield 6 can be closed to prevent cold air from entering the driver's cab, and the normal temperature of the driver's cab can be maintained. When the locomotive maintenance personnel repair the locomotive headlight and windshield wiper, the wind shield 6 can be removed and placed aside, and then the headlight can be repaired without the need to remove the entire foot pedal, reducing the difficulty of repairing the locomotive headlight circuit.

[0045] The working principle of the present utility model is:

[0046] During installation, extend the wire of the foot valve through the installation groove 4 to the inside of the bottom frame 1 and electrically connect it to the data line connector, and then install the foot valve on the upper side of the pedal body 3 with screws;

[0047] When overhauling the data line connector inside the bottom frame 1 and the wiring of the foot valve, open the screw at the front end of the pedal body 3, and then the data line connector inside the bottom frame 1 and the wiring of the foot valve can be overhauled;

[0048] When removing the foot valve, only need to remove the screw connecting the foot valve.

[0049] In summary, this technical solution connects the foot valve by setting a foot valve connection structure on the foot pedal. When disassembling and assembling the foot valve, only need to remove or install the foot valve from the foot valve connection structure, without first disassembling the bottom frame 1 and then removing or installing the foot pedal from the upper side of the bottom frame 1, which greatly reduces the procedures for disassembling and assembling the foot valve and effectively improves the time efficiency of disassembling and assembling the foot valve.

[0050] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention, if not specifically stated and limited, are implemented according to the conventional means in the art.

Claims

1. A pedal assembly for a motorcycle with a quickly detachable pedal valve, comprising a bottom frame (1), an opening area (11) is provided on the upper side of the bottom frame (1), a pedal is fixedly connected to the upper side of the bottom frame (1), and the characteristics are: At least one mounting groove (4) is provided on the foot pedal, a foot valve connection structure is provided on the foot pedal and outside the mounting groove (4), and at least one data line connector is fixedly connected inside the bottom frame (1).

2. A pedal assembly for a motorcycle with a quickly detachable foot valve according to claim 1, characterized in that: The pedal valve connection structure comprises at least two fifth threaded holes (21) which are opened on the pedal and located on the peripheral side of the mounting groove (4).

3. A pedal assembly for a motorcycle with a quickly detachable foot valve according to claim 2, characterized in that: The foot pedal comprises a fixing plate (2), the fixing plate (2) being screwed to the rear end of the upper side of the bottom frame (1), the front end of the fixing plate (2) being mounted with a pedal body (3) via a rotating connecting piece (12), the mounting groove (4) and the fifth threaded hole (21) being both provided on the pedal body (3), and the pedal body (3) being screwed to the bottom frame (1) at a position away from the fixing plate (2).

4. A pedal assembly for a motorcycle with a quickly detachable foot valve according to claim 3, characterized in that: A reinforcing rib (7) is fixedly connected to the lower side of the pedal body (3).

5. The pedal assembly for a motorcycle with a quickly detachable foot valve according to claim 3, characterized in that: The foot pedal also includes a front pedal (5), the rear end of the front pedal (5) being screw-connected to the front end of the upper side of the bottom frame (1).

6. A pedal assembly for a motorcycle with a quickly detachable pedal valve according to claim 5, characterized in that: A plane area (9) is provided at the front end of the upper side of the bottom frame (1) and at positions on both sides of the first threaded hole (13); the rear end of the front pedal (5) is screwed to the upper side of the plane area (9); an inclined area (10) is provided at the rear end of the upper side of the bottom frame (1) and at positions on both sides of the first threaded hole (13); the angle between the inclined area (10) and the horizontal plane is 16°; the fixing plate (2) is screwed to the upper side of the inclined area (10).

7. A pedal assembly for a motorcycle with a quickly detachable pedal valve according to claim 6, characterized in that: The inclination angle of the slope area (10) is 160°-170°.

8. The pedal assembly for a motorcycle with a quickly detachable foot valve according to claim 6, characterized in that: The two plane areas (9) are each provided with a first threaded hole (13), and the front pedal (5) is provided with a first nail hole (16) at a position close to the rear end; the two inclined areas (10) are each provided with a second threaded hole (14) at a position close to the front end, and the pedal body (3) is provided with two second nail holes (17) opposite to the first threaded holes (13) at a position away from the fixing plate (2); A third threaded hole (15) is provided on each of the two inclined surface areas (10) near the rear end, and two third nail holes (18) are provided on the fixing plate (2) and are opposite to the third threaded holes (15).

9. The pedal assembly for a motorcycle with a quickly detachable pedal valve according to claim 3, characterized in that: The foot pedal also includes a windshield (6), the fixing plate (2) is provided with two fourth threaded holes (20), and the windshield (6) is provided with two waist grooves (19) opposite to the fourth threaded holes (20).

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