Low-temperature-resistant folding pedal device

Abstract

The invention discloses a low-temperature-resistant folding pedal device which comprises a frame assembly, a swing rod, a connecting rod, an upper pedal assembly, a lower pedal assembly, a transmission assembly and an isolation unlocking assembly. The front side of the frame assembly is connected with the upper pedal assembly and the lower pedal assembly through a swing rod and a connecting rod. Transmission assemblies are arranged on the inner sides of the upper pedal assembly and the lower pedal assembly; the transmission assembly is connected with the isolation unlocking assembly. The device is low in cost, small in occupied space and convenient for subsequent maintenance; and a heating mechanism is arranged, so that the reliability and the safety of working in a low-temperature environment are improved.

Description

Technical Field

[0001] The present invention relates to the field of rail transit, and particularly to a low-temperature resistant folding pedal device. Background Art

[0002] The low-temperature resistant folding pedal device is used for the single-leaf sliding plug door system of intercity trains or high-speed EMUs. The folding pedal device is arranged below the door system. When the train is running, the pedal automatically retracts, which can save space; when the train stops, the pedal automatically opens to facilitate passengers getting on and off.

[0003] However, the transmission device structure of the existing low-temperature resistant folding pedal device is relatively complex, resulting in high cost, large occupied space and difficult maintenance of the folding pedal. Moreover, the existing low-temperature resistant folding pedal device is not provided with a heating mechanism, and its reliability in working under low-temperature environment is poor, which affects the safe use of the folding pedal.

[0004] Therefore, it is necessary to specifically develop a new type of low-temperature resistant folding pedal device to overcome the above problems. Summary of the Invention

[0005] Object of the Invention: Aiming at the deficiencies and defects of the prior art, the present invention provides a low-temperature resistant folding pedal device, which has low cost, small occupied space and is convenient for subsequent maintenance; improves the sealing performance, is provided with a heating mechanism, and improves the reliability and safety in working under low-temperature environment.

[0006] Technical Solution: A low-temperature resistant folding pedal device of the present invention is characterized in that it includes a frame assembly, a swing rod, a connecting rod, an upper pedal assembly, a lower pedal assembly, a transmission assembly and an isolation unlocking assembly; the front side of the frame assembly is connected to the upper pedal assembly and the lower pedal assembly through the swing rod and the connecting rod; the inner sides of the upper pedal assembly and the lower pedal assembly are provided with a transmission assembly; the transmission assembly is connected to the isolation unlocking assembly.

[0007] Among them, the frame assembly includes a left mounting seat assembly, a right mounting seat assembly and a transmission mounting assembly; the left mounting seat assembly and the right mounting seat assembly are connected to the external vehicle door system; the transmission mounting assembly fixes the transmission assembly on the left mounting seat assembly and the right mounting seat assembly.

[0008] Among them, the transmission assembly includes a gearbox assembly, a transmission shaft, a rotating plate, a sealing device, a closed position switch assembly, a locked position switch assembly, an electromagnet assembly, a locking device assembly and an emergency unlocking assembly.

[0009] Among them, the gearbox assembly includes a motor and a gearbox; the motor drives the transmission shaft to rotate through the gearbox, the transmission shaft drives the rotating plate to rotate, the rotating plate is connected to the upper pedal assembly to achieve the folding action, the upper pedal assembly drives the lower pedal assembly to achieve the simultaneous folding action through a swing rod and a connecting rod, and the transmission assembly is sealed through a sealing device.

[0010] Among them, sealing plates and cold-proof materials are installed on six surfaces of the sealing device, and a pedal pad heating film and a heating pad mounting plate are installed inside the cold-proof material at the rear of the sealing device.

[0011] Among them, when the motor drives the transmission shaft to rotate to the position where the folding pedal is closed, the locking device assembly triggers the closed position switch assembly and the locked position switch assembly in sequence, and at the same time, the locking device assembly locks and fixes the transmission shaft.

[0012] Among them, when the electromagnet assembly receives the opening signal, it triggers the unlocking of the locking device assembly, the transmission shaft is released from fixation, and the motor drives the transmission shaft to rotate to the position where the folding pedal is opened.

[0013] Among them, the emergency unlocking assembly includes an emergency unlocking switch assembly and an emergency unlocking device, and the emergency unlocking device can push the locking device assembly to unlock and make the transmission shaft rotate freely.

[0014] Among them, the isolation unlocking assembly includes an isolation unlocking device, an external operating member, an electronic switch assembly and an isolation lock turntable; both the external operating member and the electronic switch assembly can operate the isolation unlocking device to make it in a locked or isolation unlocking state; when the isolation unlocking device is in the locked state, the isolation lock turntable is fixed, and thus the transmission shaft cannot rotate; when the isolation unlocking device is in the isolation unlocking state, the isolation lock turntable is released and the transmission shaft can rotate.

[0015] Among them, the vehicle door system is a rail transit vehicle door system.

[0016] Advantageous effects: Compared with the prior art, the present invention has the following remarkable advantages: The transmission components inside the folding pedal of the present invention are closely arranged, integrating functions of driving, isolation unlocking, emergency unlocking and heating and heat preservation; through the structural design of the swing rod and the transmission rod, the two-stage pedals can be opened and closed simultaneously. It can save installation space, adapt to low-temperature working environments, the connection structure of the two-stage pedals is simple, and maintenance is convenient. The present invention has low cost, small occupied space and is convenient for subsequent maintenance; it improves the sealing performance, and improves the reliability and safety of working in a low-temperature environment. Description of the Drawings

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the closed state of the present invention;

[0019] Figure 3 It is a schematic structural diagram of the frame component of the present invention;

[0020] Figure 4 It is a schematic structural diagram of the transmission component of the present invention;

[0021] Figure 5 It is a schematic internal structural diagram of the transmission component of the present invention;

[0022] Figure 6 It is a schematic structural diagram of the gearbox component of the present invention;

[0023] Figure 7 It is a schematic structural diagram of the sealing device of the transmission component of the present invention;

[0024] Figure 8 It is a schematic structural diagram of the switch and locking device assembly of the transmission component of the present invention;

[0025] Figure 9 It is a schematic structural diagram of the isolation unlocking component of the present invention;

[0026] Figure 10 It is a schematic structural diagram of the emergency unlocking component of the present invention;

[0027] In the figure, 1 is the frame component; 101 is the left mounting seat component; 102 is the right mounting seat component; 103 is the transmission mounting component; 2 is the swing rod; 3 is the connecting rod; 4 is the upper pedal component; 5 is the lower pedal component; 6 is the transmission component; 601 is the gearbox component; 6011 is the motor; 6012 is the gearbox; 602 is the transmission shaft; 603 is the rotating plate; 604 is the sealing device; 6041 is the sealing plate; 6042 is the cold-proof material; 6043 is the pedal pad heating film; 6044 is the heating pad mounting plate; 605 is the switch-in-place switch component; 606 is the lock-in-place switch component; 607 is the electromagnet component; 608 is the locking device assembly; 609 is the emergency unlocking component; 6091 is the emergency unlocking switch component; 6092 is the emergency unlocking device; 7 is the isolation unlocking component; 701 is the isolation unlocking device; 702 is the external operating part; 703 is the electronic switch component; 704 is the isolation lock turntable. Detailed implementation manners

[0028] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and specific implementation manners.

[0029] The low-temperature resistant folding pedal device of the present invention includes a frame assembly 1, a swing rod 2, a connecting rod 3, an upper pedal assembly 4, a lower pedal assembly 5, a transmission assembly 6 and an isolation unlocking assembly 7; the front side of the frame assembly 1 is connected to the upper pedal assembly 4 and the lower pedal assembly 5 through the swing rod 2 and the connecting rod 3; a transmission assembly 6 is arranged on the inner sides of the upper pedal assembly 4 and the lower pedal assembly 5; the transmission assembly 6 is connected to the isolation unlocking assembly 7.

[0030] The frame assembly 1 of the present invention includes a left mounting seat assembly 101, a right mounting seat assembly 102 and a transmission mounting assembly 103; the left mounting seat assembly 101 and the right mounting seat assembly 102 are connected to an external vehicle door system; the transmission mounting assembly 103 fixes the transmission assembly 6 on the left mounting seat assembly 101 and the right mounting seat assembly 102.

[0031] The transmission assembly 6 of the present invention includes a gearbox assembly 601, a transmission shaft 602, a rotating plate 603, a sealing device 604, a closed position switch assembly 605, a locked position switch assembly 606, an electromagnet assembly 607, a locking device assembly 608 and an emergency unlocking assembly 609. The gearbox assembly 601 includes a motor 6011 and a gearbox 6012; the motor 6011 drives the transmission shaft 602 to rotate through the gearbox 6012, the transmission shaft 602 drives the rotating plate 603 to rotate, the rotating plate 603 is connected to the upper pedal assembly 4 to realize the folding action, the upper pedal assembly 4 drives the lower pedal assembly 5 to realize the simultaneous folding action through the swing rod 2 and the connecting rod 3, and the transmission assembly 6 is sealed through the sealing device 604 to realize the sealing and low-temperature resistant functions.

[0032] Sealing plates 6041 and cold-proof materials 6042 are installed on six surfaces of the sealing device 604 of the present invention; a pedal pad heating film 6043 and a heating pad mounting plate 6044 are installed inside the cold-proof material 6042 at the rear of the sealing device 604; it can keep the interior of the transmission device at a suitable working temperature in a low-temperature environment. When the motor 6011 drives the transmission shaft 602 to rotate to the position where the folding pedal is closed, the locking device assembly 608 triggers the closed position switch assembly 605 and the locked position switch assembly 606 in sequence, and at the same time, the locking device assembly 608 locks and fixes the transmission shaft 602. When the electromagnet assembly 607 receives an opening signal, it triggers the locking device assembly 608 to unlock, the transmission shaft 602 is released from fixation, and the motor 6011 drives the transmission shaft 602 to rotate to the position where the folding pedal is opened. The emergency unlocking assembly 609 includes an emergency unlocking switch assembly 6091 and an emergency unlocking device 6092, and the emergency unlocking device 6092 can push the locking device assembly 608 to unlock, so that the transmission shaft 602 rotates freely.

[0033] The isolation and unlocking component 7 of the present invention includes an isolation and unlocking device 701, an external operating member 702, an electronic switch assembly 703 and an isolation lock turntable 704; both the external operating member 702 and the electronic switch assembly 703 can operate the isolation and unlocking device 701 to make it in a locked or isolation and unlocking state; when the isolation and unlocking device 701 is in the locked state, the isolation lock turntable 704 is fixed, so that the transmission shaft 602 cannot rotate; when the isolation and unlocking device 701 is in the isolation and unlocking state, the isolation lock turntable 704 is released, and the transmission shaft 602 can rotate. The vehicle door system is a rail transit vehicle door system.

[0034] The internal arrangement of the transmission component of the folding pedal of the present invention is compact, integrating functions of driving, isolation and unlocking, emergency unlocking and heating and heat preservation; through the structural design of the swing rod and the transmission rod, the two-stage pedal can be opened and closed simultaneously. It can save installation space, adapt to low-temperature working environments, the connection structure of the two-stage pedal is simple, and maintenance is convenient. The present invention has low cost, small occupied space and is convenient for subsequent maintenance; it improves the sealing performance, and improves the reliability and safety in low-temperature environments.

Claims

1. A low temperature resistant folding pedal device, characterized in that: The invention comprises a frame assembly (1), a swing rod (2), a connecting rod (3), an upper pedal assembly (4), a lower pedal assembly (5), a transmission assembly (6) and an isolation unlocking assembly (7); the front side of the frame assembly (1) is connected to the upper pedal assembly (4) and the lower pedal assembly (5) through the swing rod (2) and the connecting rod (3); the inner side of the upper pedal assembly (4) and the lower pedal assembly (5) is provided with a transmission assembly (6); the transmission assembly (6) is connected to the isolation unlocking assembly (7).

2. The low temperature resistant folding pedal device according to claim 1, characterized in that: The frame assembly (1) comprises a left mounting seat assembly (101), a right mounting seat assembly (102) and a transmission mounting assembly (103); the left mounting seat assembly (101) and the right mounting seat assembly (102) are connected to an external vehicle door system; the transmission mounting assembly (103) fixes the transmission assembly (6) to the left mounting seat assembly (101) and the right mounting seat assembly (102).

3. The low temperature resistant folding pedal device according to claim 1, characterized in that: The transmission assembly (6) comprises a gear box assembly (601), a transmission shaft (602), a rotating plate (603), a sealing device (604), a closed position switch assembly (605), a locked position switch assembly (606), an electromagnet assembly (607), a locking device assembly (608) and an emergency unlocking assembly (609).

4. The low temperature resistant folding pedal device according to claim 3, characterized in that: The gear box assembly (601) comprises a motor (6011) and a gear box (6012); the motor (6011) drives the transmission shaft (602) to rotate through the gear box (6012); the transmission shaft (602) drives the rotating plate (603) to rotate; the rotating plate (603) is connected to the upper pedal assembly (4) to achieve a folding action; the upper pedal assembly (4) drives the lower pedal assembly (5) to achieve a simultaneous folding action through the rocker rod (2) and the connecting rod (3); and the transmission assembly (6) is sealed through the sealing device (604).

5. The low temperature resistant folding pedal device according to claim 4, characterized in that: Sealing plates (6041) and cold-proof materials (6042) are installed on the six surfaces of the sealing device (604), and a pedal pad heating film (6043) and a heating pad mounting plate (6044) are installed inside the cold-proof material (6042) at the rear of the sealing device (604).

6. The low temperature resistant folding pedal device according to claim 4, characterized in that: When the motor (6011) drives the transmission shaft (602) to rotate to a position where the folding pedal is closed, the locking device assembly (608) triggers the closed position switch assembly (605) and the locked position switch assembly (606) in sequence, and the locking device assembly (608) is locked at the same time to fix the transmission shaft (602).

7. The low temperature resistant folding pedal device according to claim 6, characterized in that: When the electromagnet assembly (607) receives the opening signal, it triggers the locking device assembly (608) to unlock, the transmission shaft (602) is released from fixation, and the motor (6011) drives the transmission shaft (602) to rotate to a position where the folding pedal is opened.

8. The low temperature resistant folding pedal device according to claim 7, characterized in that: The emergency unlocking assembly (609) comprises an emergency unlocking switch assembly (6091) and an emergency unlocking device (6092). The emergency unlocking device (6092) can push the locking device assembly (608) to unlock, so that the transmission shaft (602) can rotate freely.

9. The low temperature resistant folding pedal device according to claim 3, characterized in that: The isolation unlocking assembly (7) comprises an isolation unlocking device (701), an external operating member (702), an electronic switch assembly (703) and an isolation lock rotating disk (704); the external operating member (702) and the electronic switch assembly (703) can both operate the isolation unlocking device (701) to put it in a locked or isolated unlocked state; when the isolation unlocking device (701) is in the locked state, the isolation lock rotating disk (704) is fixed, thereby making the transmission shaft (602) unable to rotate; when the isolation unlocking device (701) is in the isolated unlocked state, the isolation lock rotating disk (704) is released, and the transmission shaft (602) can rotate.

10. The low temperature resistant folding pedal device according to claim 1, characterized in that: The vehicle door system is a rail transit vehicle door system.

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