Novel pedal device for passenger train seat

Abstract

The utility model relates to a novel pedal device for a passenger train seat, and belongs to the technical field of rail transit. According to the technical scheme, one end of an inhaul cable assembly (5) is connected to a swing arm of a pedal body (2), the other end of the inhaul cable assembly (5) is connected with an air spring (11) of the passenger train seat, and the air spring (11) is connected with a backrest of the passenger train seat to drive the backrest (10) to return; a side handrail (9) is arranged beside a backrest (10) of the passenger train seat, a pedal body (2) is located below the side handrail (9), and a groove is formed in the bottom of the side handrail (9) and matched with a limiting wheel (3) at the end of a swing arm of the pedal body (2). The pedal has the advantages that the pedal body is directly connected with the air spring through the inhaul cable assembly, the structure is simple, the one-step return function of a seat is achieved in a limited space, and installation and use are convenient.

Description

Technical Field

[0001] This utility model relates to a novel foot pedal device for railway passenger car seats, belonging to the field of rail transit technology. Background Technology

[0002] With the rapid development of my country's economy, railway development has entered a peak period, and people's travel demand is particularly strong. Seats, as the most frequent and direct point of contact for passengers, directly impact passenger comfort. To ensure passenger comfort, seats typically have backrest adjustment and rotation functions. After the train arrives at the station, the attendant needs to return the seats to their initial position. Existing technologies typically install a foot pedal for return and rotation locking, all of which require foot control. However, due to space limitations, existing foot pedals are complex in structure, large in size, and inconvenient to use and install. Utility Model Content

[0003] The purpose of this utility model is to provide a novel foot pedal device for seats, which directly connects the foot pedal body to the gas spring through a cable assembly. It has a simple structure and novel design, and realizes the function of one-step return of the seat in a limited space. It is easy to install and use, and solves the problems in the technical background.

[0004] The technical solution of this utility model is:

[0005] A novel footrest device for railway passenger car seats includes a footrest mounting base, a footrest body, a limiting wheel, a cable assembly, a tension spring, mounting screws, a locking nut, a side armrest, a backrest, a gas spring, and a base frame. The footrest mounting base is welded to the base frame of the railway passenger car seat. The footrest body is L-shaped, and the bending point of the L-shaped footrest body is hinged to the footrest mounting base using mounting screws and locking nuts. The mounting screws act as the rotation axis of the footrest body, allowing it to rotate around a fixed axis. The bottom end of the footrest body is the footrest, and the upper end is a swing arm. The end of the swing arm... The limiting wheel is installed using a limiting wheel mounting screw; the tension spring is connected between the foot pedal body and the foot pedal mounting base, one end of the cable is connected to the swing arm of the foot pedal body, and the other end is connected to the gas spring of the railway passenger car seat. The gas spring is connected to the backrest and drives the backrest to return to its original position; the railway passenger car seat has a side armrest next to the backrest, the foot pedal body is located below the side armrest, and the bottom of the side armrest has a groove that matches the limiting wheel at the end of the swing arm of the foot pedal body. Under normal conditions, the limiting wheel is embedded in the groove at the bottom of the side armrest, thus limiting the position of the railway passenger car seat.

[0006] Furthermore, the foot pedal body has a pre-drilled mounting hole on its swing arm, and one end of the cable assembly has a spherical structure that fits into the pre-drilled mounting hole on the foot pedal body's swing arm; the other end of the cable assembly is directly connected to the gas spring through the same spherical structure.

[0007] Furthermore, the cable assembly includes a steel wire rope. The tension spring enables the foot pedal body to automatically return to its original position after rotation.

[0008] Furthermore, the foot pedal mounting base has a Z-shaped bent structure to form a stable support and is welded to the base frame.

[0009] When the foot pedal is pressed, the foot pedal rotates around its axis, the limit wheel separates from the groove of the side armrest, and the upper part of the railway passenger car seat can rotate; when the foot pedal rotates, the steel wire rope in the cable assembly pulls the gas spring to open, which drives the backrest to move and realizes the backrest returning to its original position with one step.

[0010] The advantages of this invention are: the foot pedal body is directly connected to the gas spring by a cable assembly, which is simple in structure and realizes the one-step return function of the seat in a limited space. It is easy to install and use. Compared with the traditional foot pedal assembly, it has fewer components, a lower failure rate, and lower manufacturing cost. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of the present invention;

[0012] Figure 2 This is the front view of the present utility model;

[0013] Figure 3 This is a top view of the present invention;

[0014] Figure 4 This is a side view of the present invention;

[0015] Figure 5 This is an overall view of the present utility model;

[0016] Figure 6 This is an installation view of the present invention;

[0017] Figure 7 This is a cross-sectional view of the present invention;

[0018] In the diagram: 1. Foot pedal mounting base; 2. Foot pedal body; 3. Limiting wheel; 4. Limiting wheel mounting screw; 5. Cable assembly; 6. Tension spring; 7. Mounting screw; 8. Locking nut; 9. Side armrest; 10. Backrest; 11. Gas spring; 12. Base frame. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] See attached document Figure 1-7A novel foot pedal device for railway passenger car seats includes a foot pedal mounting base 1, a foot pedal body 2, a limiting wheel 3, a cable assembly 5, a tension spring 6, mounting screws 7, a locking nut 8, a side armrest 9, a backrest 10, a gas spring 11, and a base frame 12. The foot pedal mounting base 1 is welded to the base frame 12 of the railway passenger car seat. The foot pedal body 2 is L-shaped, and the bending point of the L-shaped foot pedal body 2 is hinged to the foot pedal mounting base 1 using mounting screws 7 and locking nuts 8. The mounting screws 7 serve as the rotation axis of the foot pedal body 2, allowing the foot pedal body 2 to rotate around a fixed axis. The bottom end of the foot pedal body 2 is the foot pedal, and the upper end is a swing arm. The end of the swing arm is... The limiting wheel 3 is installed via the limiting wheel mounting screw 4; the tension spring 6 is connected between the foot pedal body 2 and the foot pedal mounting seat 1; one end of the cable assembly 5 is connected to the swing arm of the foot pedal body 2, and the other end is connected to the gas spring 11 of the railway passenger car seat; the gas spring 11 is connected to the backrest of the railway passenger car seat and drives the backrest 10 to return to its original position; a side armrest 9 is provided next to the backrest 10 of the railway passenger car seat; the foot pedal body 2 is located below the side armrest 9; the bottom of the side armrest 9 is provided with a groove that matches the limiting wheel 3 at the end of the swing arm of the foot pedal body 2; under normal conditions, the limiting wheel 3 is embedded in the groove at the bottom of the side armrest, thus limiting the position of the railway passenger car seat.

[0021] See attached document Figure 1 and 5 The foot pedal body 2 has a reserved mounting hole on its swing arm, and one end of the cable assembly 5 has a spherical structure that fits into the reserved mounting hole on the foot pedal body 2's swing arm. The other end of the cable assembly 5 is directly connected to the gas spring 11 through the same spherical structure.

[0022] The cable assembly 5 includes a steel wire rope. The tension spring 6 enables the foot pedal body 2 to automatically return to its original position after rotation.

[0023] The foot pedal mounting base 1 has a Z-shaped bending structure to form a stable support and is welded to the base frame 12.

[0024] When the foot pedal of the foot pedal body 2 is stepped on, the foot pedal body 2 rotates around the axis (installation screw 7), the limit wheel 3 separates from the groove of the side armrest 9, and the upper part of the railway passenger car seat can be rotated; when the foot pedal body 2 rotates, the steel wire rope in the cable assembly 5 pulls the gas spring 11 to open, driving the backrest 10 to move, realizing the one-step return of the backrest 10.

[0025] During rotation, the foot pedal mounting base 1 provides a certain limit to the foot pedal body 2. The limit wheel 3 is fixed to the foot pedal body 2 by the limit wheel mounting screw 4. When there is no movement, due to the action of the tension spring 6, the limit wheel 3 on the swing arm of the foot pedal body 2 forms a limit with the side armrest groove. When the foot pedal of the foot pedal body 2 is stepped on, as the foot pedal body 2 rotates, the limit wheel 3 changes position with the foot pedal body 2, realizing the rotation locking and unlocking functions. The foot pedal mounting base 1 and the bottom of the foot pedal body 2 have pre-drilled tension spring mounting holes. The two sides of the tension spring 6 are hooked into the tension spring mounting holes. When the foot pedal body 2 is stepped on, the tension spring 6 deforms. When the external force is removed, the tension spring 6 returns to its original shape due to its own characteristics, causing the foot pedal body 2 to return to its original position. One end of the cable assembly 5 has a spherical structure that fits into the pre-drilled mounting hole of the foot pedal body 2. The threaded part is fixed to the foot pedal mounting seat 1 by two nuts. When the foot pedal body 2 is stepped down, the steel wire rope of the cable assembly 5 pulls the gas spring 11 to move, thereby driving the backrest 10 to move and realize the function of the backrest returning to its original position after being stepped down.

[0026] like Figure 7 As shown, state A is the pedal open state, and state B is the pedal locked state.

[0027] This utility model uses a cable assembly to directly connect the foot pedal body to the gas spring, resulting in a simple structure, novel design, fewer parts, and low maintenance costs.

Claims

1. A novel foot pedal device for railway passenger car seats, characterized in that: The system includes a foot pedal mounting base (1), a foot pedal body (2), a limiting wheel (3), a cable assembly (5), a tension spring (6), mounting screws (7), a locking nut (8), a side armrest (9), a backrest (10), a gas spring (11), and a base frame (12). The foot pedal mounting base (1) is welded to the base frame (12) of the railway passenger car seat. The foot pedal body (2) is L-shaped. The bending point of the L-shaped foot pedal body (2) is hinged to the foot pedal mounting base (1) using mounting screws (7) and locking nuts (8). The mounting screws (7) serve as the rotation axis of the foot pedal body (2), allowing the foot pedal body (2) to rotate around a fixed axis. The bottom end of the foot pedal body (2) is the foot pedal, and the top end... The swing arm is a swing arm, and the end of the swing arm is fitted with a limit wheel (3) by a limit wheel mounting screw (4); the tension spring (6) is connected between the foot pedal body (2) and the foot pedal mounting seat (1), one end of the cable assembly (5) is connected to the swing arm of the foot pedal body (2), and the other end is connected to the gas spring (11) of the railway passenger car seat. The gas spring (11) is connected to the backrest (10) of the railway passenger car seat and drives the backrest (10) to return to its original position; a side armrest (9) is provided next to the backrest (10) of the railway passenger car seat, and the foot pedal body (2) is located below the side armrest (9). The bottom of the side armrest (9) is provided with a groove that matches the limit wheel (3) at the end of the swing arm of the foot pedal body (2).

2. The novel foot pedal device for railway passenger car seats according to claim 1, characterized in that: The foot pedal body (2) has a reserved mounting hole on its swing arm. One end of the cable assembly (5) has a spherical structure. The spherical structure of the cable assembly (5) is inserted into the reserved mounting hole on the swing arm of the foot pedal body (2). The other end of the cable assembly (5) is directly connected to the gas spring (11) through the same spherical structure.

3. A novel footrest device for railway passenger car seats according to claim 1, characterized in that: The cable assembly (5) comprises a steel wire rope.

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