Maintenance device for pedal of sliding plug door of motor train unit

By designing a maintenance device for the EMU plug door foot pedal, using a suction cup and dynamometer structure, single-person operation is achieved, solving the problems of falling risk and low efficiency in the existing two-person collaboration technology, and improving maintenance efficiency and safety.

CN223470798UActive Publication Date: 2025-10-24CHINA RAILWAY GUANGZHOU BUREAU GRP CO LTD GUANGZHOU EMU
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Patent Information

Application Number
CN202423130368.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-10-24
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

During the maintenance of EMU sliding door footrests, the existing technology requires the collaboration of two people, which poses a risk of personnel falling and has low operating efficiency, and it is impossible to accurately complete the tensile test.

Method used

A maintenance device is designed, which includes a foot pedal suction cup, a door leaf suction cup, a support extension rod, a carrying rod, a connecting rod and a peak force gauge. The foot pedal and door leaf are fixed by the suction cup, and the carrying rod and connecting rod structure are used to realize single-person operation. The force gauge is used to measure the tension of the foot pedal.

Benefits of technology

It enables a single person to complete pedal maintenance, improves work efficiency, eliminates the risk of personnel falling, improves the work process, solves the problem of insufficient physical strength, and ensures the accurate and efficient completion of production tasks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an overhauling device for a pedal of a sliding plug door of a motor train unit, which comprises a pedal sucker, a door leaf sucker, a supporting extension bar, a hand-held rod, a connecting rod and a peak tension meter, the two ends of the hand-held rod are respectively provided with a connecting end and an operating end, and the door leaf sucker is rotatably connected with the connecting end of the hand-held rod through the supporting extension bar. The pedal suction cup is connected with the hand lifting rod through a connecting rod, the connecting rod is arranged between the connecting end and the operating end, the pedal suction cup is connected with the connecting rod through a peak tension meter, and the peak tension meter is used for detecting tension applied to the pedal suction cup by the connecting rod; by adopting the tool for overhauling the pedal of the sliding plug door of the motor train unit, the operation can be easily realized, the efficiency is improved, two-person operation in the prior art is optimized into one-person operation, and the working efficiency is improved; personnel injury is avoided, the operation mode is optimized, and the personnel falling risk is avoided; and meanwhile, the operation process is improved, the problem of insufficient operation physical strength of personnel is solved, and the production task is accurately and efficiently completed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a high -speed train set overhauling technical field, concretely relates to a kind of overhauling device for high -speed train set plug door foot pedal. BACKGROUND

[0002] Before high -speed train set secondary repair operation, first manually extend upper foot pedal, to complete foot pedal lubrication, high -speed train set is in the height (about 1.9 meters) of car group side door foot pedal distance ground in repair shop, when developing secondary repair side door inspection project foot pedal tension test operation needs two people to cooperate;Foot pedal tension measurement needs to be measured by operator standing on ladder, there is the risk of personnel falling caused by tension gauge unhooking. On the one hand, one person measures, one person protects for non-platform side operation;On the other hand, there is the risk of personnel falling backward caused by tension gauge unhooking in the measurement process, prone to the situation of personnel falling injury.

[0003] In view of the above-mentioned defects, the utility model creator finally obtains the utility model after long time research and practice. UTILITY MODEL CONTENT

[0004] To solve the above technical defects, the utility model adopts the technical scheme, which provides an overhauling device for high -speed train set plug door foot pedal, including foot pedal suction cup, door leaf suction cup, support extension rod, hand-held rod, connecting rod and peak tension gauge, the two ends of the hand-held rod are respectively provided as connecting end and operating end, the door leaf suction cup is rotatably connected with the connecting end of the hand-held rod by the support extension rod, the foot pedal suction cup is connected with the hand-held rod by the connecting rod, the connecting rod is arranged between the connecting end and the operating end, the foot pedal suction cup is connected with the connecting rod by the peak tension gauge, and the peak tension gauge is used to detect the tension applied by the connecting rod to the foot pedal suction cup.

[0005] Preferably, one end of the support extension rod is fixedly provided with the door leaf suction cup, and the other end is rotatably connected with the connecting end of the hand-held rod through a rotating member, the rotating member includes a rotating shaft, the axis of the rotating shaft is perpendicular to the axis of the support extension rod and the hand-held rod, and the support extension rod and the hand-held rod can rotate in the same plane around the rotating shaft.

[0006] Preferably, the connecting rod is vertically fixed on the hand-held rod, and the axis of the connecting rod is in the same plane as the axis of the support extension rod.

[0007] Preferably, the first hook is provided at the end of the connecting rod away from the support extension rod, and the second hook is provided on the foot pedal suction cup, the first hook and the second hook each comprise a hook ring and a connecting block, the hook ring is provided in a circular ring structure, one end of the connecting block is fixedly provided at the outer edge of the corresponding hook ring and extends linearly along the radial direction of the corresponding hook ring, and the connecting block is fixedly provided on the connecting rod or the foot pedal suction cup, and the two hook rings of the first hook and the second hook are respectively arranged at the two ends of the peak tension meter to detect the tension applied by the connecting rod to the foot pedal suction cup.

[0008] Preferably, the first hook is connected with the peak tension meter through a tension frame, the tension frame comprises a tension rod and a rotating rod, the tension rod is provided in a U shape, the two ends of the tension rod are connected through the rotating rod, the rotating rod is arranged in a connecting hole of the peak tension meter, the two ends of the tension rod are arranged on the two sides of the connecting hole, and the bent section of the tension rod away from the peak tension meter penetrates through the hook ring of the first hook to realize the connection with the first hook.

[0009] Preferably, the farthest straight-line distance from the support extension rod to the foot pedal suction cup is less than the farthest straight-line distance from the support extension rod to the door leaf suction cup.

[0010] Preferably, the farthest straight-line distance from the support extension rod to the foot pedal suction cup is 440 mm, the farthest straight-line distance from the support extension rod to the door leaf suction cup is 540 mm, the distance between the rotating member and the connecting rod is 270 mm, and the length of the support extension rod is 800 mm.

[0011] Preferably, the foot pedal suction cup and the door leaf suction cup each adopt a suction cup with a diameter of 145 mm and a maximum suction force of 980 N, and the maximum value of the peak tension meter is 300 KG.

[0012] Compared with the prior art, the beneficial effects of the utility model lie in that the maintenance of the EMU plug door foot pedal is easy and efficient, the operation is optimized from 2 people in the prior art to 1 person, the work efficiency is improved, the personnel injury is prevented, the operation mode is optimized, the personnel falling risk is avoided, the operation process is improved, the problem of insufficient physical strength of personnel is solved, and the production task is accurately and efficiently completed. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a perspective view of the maintenance device for the EMU plug door foot pedal.

[0014] Figure 2 It is a structural front view of the maintenance device for the EMU plug door foot pedal.

[0015] The numbers in the figure represent:

[0016] 1 - foot suction cup; 2 - door leaf suction cup; 3 - support extension rod; 4 - hand-held rod; 5 - connecting rod; 6 - peak tension meter; 7 - rotating piece; 8 - first hook; 9 - second hook; 10 - tension frame. DETAILED DESCRIPTION

[0017] The above and other technical features and advantages of the present application will be more apparent from the following detailed description of the application taken in conjunction with the accompanying drawings.

[0018] EMBODIMENT

[0019] As shown in Figure 1 , Figure 2 , Figure 1 is a perspective view of the maintenance device for the foot pedal of the EMU sliding plug door; Figure 2 is a structural front view of the maintenance device for the foot pedal of the EMU sliding plug door.

[0020] The maintenance device for the foot pedal of the EMU sliding plug door comprises a foot suction cup 1, a door leaf suction cup 2, a support extension rod 3, a hand-held rod 4, a connecting rod 5 and a peak tension meter 6, both ends of the hand-held rod 4 are provided as a connecting end and an operating end respectively, the door leaf suction cup 2 is rotationally connected with the connecting end of the hand-held rod 4 through the support extension rod 3, the foot suction cup 1 is connected with the hand-held rod 4 through the connecting rod 5, the connecting rod 5 is arranged between the connecting end and the operating end, the foot suction cup 1 is connected with the connecting rod 5 through the peak tension meter 6, and the peak tension meter 6 is used to detect the tension applied by the connecting rod 5 to the foot suction cup 1.

[0021] Specifically, one end of the support extension rod 3 is fixedly provided with the door leaf suction cup 2, and the other end is rotationally connected with the connecting end of the hand-held rod 4 through a rotating piece 7, the rotating piece 7 comprises a rotating shaft, the axis of the rotating shaft is arranged vertically with the axis of the support extension rod 3 and the hand-held rod 4, and the support extension rod 3 and the hand-held rod 4 can rotate in the same plane around the rotating shaft, so as to facilitate the rotating piece 7 as a support point to pull the foot suction cup 1.

[0022] The connecting rod 5 is fixed vertically on the hand-held rod 4, and the axis of the connecting rod 5 is in the same plane as the axis of the support extension rod 3, so as to facilitate the hand-held rod 4 to be lifted with the rotating piece 7 as a fulcrum.

[0023] The end of the connecting rod 5 away from the supporting elongated rod 3 is provided with a first hook 8, and the foot pedal suction cup 1 is provided with a second hook 9, the first hook 8 and the second hook 9 both comprise a shackle and a connecting block, the shackle is provided as a circular ring structure, one end of the connecting block is fixedly provided at the outer edge corresponding to the shackle and extends linearly along the radial direction corresponding to the shackle, the connecting block is fixedly provided on the connecting rod 5 or the foot pedal suction cup 1, and the two shackles of the first hook 8 and the second hook 9 are respectively provided at the two ends of the peak tension meter 6 to detect the tension applied by the connecting rod 5 to the foot pedal suction cup 1.

[0024] Through the design of the first hook 8 and the second hook 9, the degree of freedom of the foot pedal suction cup 1 can be improved, and it is ensured that the foot pedal suction cup 1 can be fixedly attached to the front of the foot pedal.

[0025] Preferably, the first hook 8 is connected with the peak tension meter 6 through a tension frame 10, the tension frame 10 comprises a tension rod and a rotating rod, the tension rod is provided as a U-shaped structure, the two ends of the tension rod are connected through the rotating rod, the rotating rod is provided in a connecting hole of the peak tension meter 6, the two ends of the tension rod are provided on the two sides of the connecting hole, and the bent section of the tension rod away from the peak tension meter 6 penetrates through the shackle of the first hook 8 to realize the connection with the first hook 8.

[0026] Through the provision of the tension frame 10, the two shackle axes of the first hook 8 and the second hook 9 are perpendicular to each other, so that the degree of freedom of the peak tension meter 6 and the foot pedal suction cup 1 can be further improved, and the tension measurement of the peak tension meter 6 can be facilitated while ensuring that the foot pedal suction cup 1 is adsorbed on the foot pedal.

[0027] Preferably, the farthest straight line distance of the supporting elongated rod 3 to the foot pedal suction cup 1 is less than the farthest straight line distance of the supporting elongated rod 3 to the door leaf suction cup 2, so that the lifting of the supporting elongated rod 3 facilitates the pulling of the foot pedal suction cup 1.

[0028] In specific embodiments, the farthest straight line distance b of the supporting elongated rod 3 to the foot pedal suction cup 1 is 440 mm, the farthest straight line distance a of the supporting elongated rod 3 to the door leaf suction cup 2 is 540 mm, the distance c between the rotating member 7 and the connecting rod 5 is 270 mm, and the length d of the supporting elongated rod 3 is 800 mm.

[0029] Generally, the foot pedal suction cup 1 and the door leaf suction cup 2 both adopt a suction cup with a diameter of 145 mm and a maximum suction force of 980 N, and the maximum value of the peak tension meter 6 is 300 KG.

[0030] The utility model discloses a specific use mode is: the foot pedal suction cup 1 is absorbed to foot pedal, the door page suction cup 2 is absorbed to door page, with the rotation piece 7 as the fulcrum, through the promotion of the operation end on the hand-held rod 4, the foot pedal suction cup 1 will the foot pedal pull out. Because the maximum suction of suction cup is 980N, manually test suction when greater than 980N, the suction cup is out, the measurement standard of foot pedal is within 300N, and the suction cup can normally absorb and carry out tension measurement, even if the required 450N suction of the foot pedal that occurs breakdown is in the controllable range, avoids the personnel falling from high place caused by the suction cup separation when measuring due to insufficient suction, thereby can normally detect whether the foot pedal fails, and the foot pedal can be pulled out and lubricated.

[0031] The maintenance of the high-speed train set's sliding plug door foot pedal can be realized easily and the efficiency is improved, the operation of two persons in the prior art is optimized to one person, the work efficiency is improved, the optimization operation mode is prevented from causing personnel injury, the risk of personnel falling is avoided, the operation process is improved, the problem of insufficient physical strength of personnel operation is solved, and the production task is accurately and efficiently completed.

[0032] The above only is the preferred embodiment of the utility model, and is only illustrative but not restrictive to the utility model. The professional technical personnel understands that many changes, modifications or even equivalences can be made to the utility model within the spirit and scope defined by the utility model claims, but all will fall into the protection scope of the utility model.

Claims

1. A kind of for motor train unit plug door footrest's overhaul device, it is characterized in that, The door leaf suction cup, the support extension rod, the hand-held rod, the connecting rod and the peak tension meter are provided, two ends of the hand-held rod are respectively provided as a connecting end and an operating end, the door leaf suction cup is rotationally connected with the connecting end of the hand-held rod through the support extension rod, the foot suction cup is connected with the hand-held rod through the connecting rod, the connecting rod is arranged between the connecting end and the operating end, the foot suction cup is connected with the connecting rod through the peak tension meter, and the peak tension meter is used to detect the tension applied by the connecting rod to the foot suction cup.

2. The inspection device for the EMU sliding plug door footrest according to claim 1, characterized in that, One end of the support extension rod is fixedly provided with the door leaf suction cup, and the other end is rotationally connected with the connecting end of the hand-held rod through a rotating piece, the rotating piece comprises a rotating shaft, the axis of the rotating shaft is perpendicular to the axes of the support extension rod and the hand-held rod, and the support extension rod and the hand-held rod can rotate in the same plane around the rotating shaft.

3. The inspection device for the EMU sliding plug door footrest according to claim 2, characterized in that, The connecting rod is vertically fixed on the hand-held rod, and the axis of the connecting rod is in the same plane as the axis of the support extension rod.

4. The inspection device for the EMU sliding plug door footrest according to claim 3, characterized in that, The end of the connecting rod away from the support extension rod is provided with a first hook, the foot suction cup is provided with a second hook, the first hook and the second hook each comprise a hook ring and a connecting block, the hook ring is provided in a circular ring structure, one end of the connecting block is fixedly arranged at the outer edge corresponding to the hook ring and extends linearly along the radial direction corresponding to the hook ring, and the connecting block is fixedly arranged on the connecting rod or the foot suction cup, the two hook rings of the first hook and the second hook are arranged at the two ends of the peak tension meter respectively to detect the tension applied by the connecting rod to the foot suction cup.

5. The inspection device for the EMU sliding plug door footrest according to claim 4, characterized in that, The first hook is connected with the peak tension meter through a tension frame, the tension frame comprises a tension rod and a rotating rod, the tension rod is provided in a U shape, the two ends of the tension rod are connected through the rotating rod, the rotating rod is arranged in a connecting hole of the peak tension meter, the two ends of the tension rod are arranged on the two sides of the connecting hole, and the bent section of the tension rod away from the peak tension meter penetrates through the hook ring of the first hook to realize the connection with the first hook.

6. The inspection device for the EMU sliding plug door footrest according to claim 3, characterized in that, The farthest straight-line distance from the support extension rod to the foot suction cup is less than the farthest straight-line distance from the support extension rod to the door leaf suction cup.

7. The inspection device for the EMU sliding plug door footrest according to claim 6, characterized in that, The farthest straight-line distance from the support extension rod to the foot suction cup is 440 mm, the farthest straight-line distance from the support extension rod to the door leaf suction cup is 540 mm, the distance between the rotating piece and the connecting rod is 270 mm, and the length of the support extension rod is 800 mm.

8. The inspection device for the EMU sliding plug door footrest according to claim 7, characterized in that, Both the foot suction cup and the door leaf suction cup adopt a suction cup with a diameter of 145 mm and a maximum suction force of 980 N, and the maximum value of the peak tension meter is 300 KG.