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CN-121973825-A - Railway carriage junction anti-pinch safety induction device

CN121973825ACN 121973825 ACN121973825 ACN 121973825ACN-121973825-A

Abstract

The invention belongs to the technical field of railway carriage protection, and particularly relates to an anti-pinch safety induction device at a joint of a railway carriage, which comprises an infrared detector, an adjusting mechanism for adjusting the monitoring angle of the infrared detector and a dust removing mechanism for cleaning the infrared detector, wherein the adjusting mechanism is fixed in the edge of a car door or a car coupler gap through a fixing plate and comprises a pair of first lug plates, the infrared detector is rotationally connected between the first lug plates through a mounting shaft, a transmission assembly is arranged on the outer side face of one of the first lug plates, the transmission assembly is connected with the mounting shaft, the infrared detector can be driven to rotate by rotating the transmission assembly, and the dust removing mechanism is arranged at one end of the infrared detector for transmitting and receiving signals.

Inventors

  • HU RUOXI
  • ZHANG QIANHUI
  • MENG YUE
  • ZHANG SHENGJUN

Assignees

  • 扎赉诺尔煤业有限责任公司

Dates

Publication Date
20260505
Application Date
20260120

Claims (8)

  1. 1. A railway car junction anti-pinch safety sensing device, comprising: the device comprises an infrared detector (2), an adjusting mechanism (4) for adjusting the monitoring angle of the infrared detector (2) and a dust removing mechanism (5) for cleaning the infrared detector (2); the adjustment mechanism (4) is fixed in the edge of the car door or the car coupler clearance through the fixed plate (1), and the adjustment mechanism (4) comprises: A pair of first ear plates (42), the infrared detector (2) being rotatably connected between the first ear plates (42) by a mounting shaft (43); The transmission assembly is arranged on the outer side surface of one of the first lug plates (42), is connected with the mounting shaft (43), and can drive the infrared detector (2) to rotate by rotating; the dust removing mechanism (5) is arranged at one end of the infrared detector (2) for transmitting and receiving signals.
  2. 2. A railway car junction anti-pinch safety sensing device as defined in claim 1, wherein, The adjusting mechanism (4) further comprises a fixed disc (3), the fixed disc (3) is fixedly connected with the fixed plate in a mode of being parallel to the fixed plate (1), and the side surface, far away from the fixed plate, of the fixed disc is fixedly connected with the pair of first lug plates (42).
  3. 3. The railway car junction anti-pinch safety sensing device of claim 1, wherein, The transmission assembly comprises a worm wheel (44), a worm (46) and a pair of second lugs (45), The pair of second lug plates (45) are fixed on the outer side surfaces of the first lug plates (42), the worm (46) is rotatably connected between the pair of second lug plates (45), the worm wheel (44) is fixedly arranged at the end part of the installation shaft (43) penetrating through the first lug plates (42) and meshed with the worm (46), and the worm (46) is rotated to drive the installation shaft (43) to rotate through the worm wheel (44).
  4. 4. A railway car junction anti-pinch safety sensing device as in claim 3 wherein, The transmission assembly further comprises an operating piece (47), wherein the operating piece (47) is fixed to the end portion of the worm (46), and the operating piece (47) is of a regular polygon structure.
  5. 5. The railway car junction anti-pinch safety sensing device of claim 1, wherein, The dust removing mechanism (5) comprises a supporting block (51), a driving motor (53) and a cleaning assembly; The cleaning device comprises a supporting block (51), a driving motor (53) and a cleaning assembly, wherein the supporting block (51) is fixed on the outer wall of an infrared detector (2), the driving motor (53) is fixed on the supporting block (51), the cleaning assembly is connected with the power output end of the driving motor (53), and the cleaning assembly abuts against the end face of the infrared detector (2), so that the driving motor (53) can drive the cleaning assembly to move along the end face.
  6. 6. The railway car junction anti-pinch safety sensing device of claim 7, The cleaning assembly includes a rotating bar (52); The rotating strip (52) is connected with an output shaft of the driving motor (53); the rotating strip (52) is of an L-shaped structure, and one end, connected with the driving motor (53), of the rotating strip (52) is rotationally connected with the supporting block (51).
  7. 7. The railway car junction anti-pinch safety sensing device of claim 6, wherein, The cleaning assembly further comprises a fixing strip (54) and a scraping strip (55); The fixing strip (54) is arranged on one side, close to the infrared detector (2), of the rotating strip (52), and the scraping strip (55) is fixed on the fixing strip (54) and is attached to the end face of the infrared detector (2).
  8. 8. The railway car junction anti-pinch safety sensing device of claim 7, The fixing strip (54) is detachably and fixedly connected with the rotating strip (52) through a fastener; The fastener comprises a threaded rod (6) and a locking nut (7), wherein the threaded rod (6) is fixed on the outer wall of the fixed strip (54) and penetrates through the rotating strip (52), and the locking nut (7) is installed at the extending end of the threaded rod (6) through threaded screwing.

Description

Railway carriage junction anti-pinch safety induction device Technical Field The invention belongs to the technical field of railway carriage protection, and particularly relates to an anti-pinch safety sensing device for a railway carriage joint. Background Railway transportation is an important mode of transportation in China, and the running safety of the railway transportation is important. The carriage connecting part (such as an automatic car door, a passing platform and a car coupler connecting area) is a high-incidence area of a clamping accident due to relative movement. The anti-pinch safety sensing device at the joint of the railway carriage is used as a key safety barrier for detecting barriers in the areas in real time and triggering braking or alarming before potential pinching risks occur, so that the personal safety of passengers and vehicle-mounted workers is effectively ensured. At present, detection schemes based on sensors are commonly adopted in the field to realize the anti-pinch function. Common sensing technologies include infrared sensors, pressure sensors, ultrasonic sensors, and AI smart cameras based on machine vision, among others. These techniques have advantages, but in a complex railway practical operating environment, reliability and stability face serious challenges. First, in the case of bulk cargo transportation cars such as coal and minerals, some dust is generated during loading and unloading and high-speed operation. The optical window of the infrared sensor is easily shielded or attached by dust, so that the light path is blocked or the signal is attenuated, and the system is misjudged (false alarm) or the function is invalid (missing alarm), thus the hidden danger is buried for safe operation. There are also solutions in the prior art that attempt to solve such problems. For example, chinese patent publication No. CN221607536U discloses "an elevator door anti-pinch device". The device aims at removing dust on the surface of the infrared detector by arranging the dust removing part so as to ensure the cleanliness of normal operation of the infrared detector. However, this solution is mainly aimed at elevator scenes where the environment is relatively stable and clean. The railway carriage continuously bears complex mechanical vibration and impact from the rail and the car body in long-term operation, and the continuous strong vibration environment easily causes loosening of a sensor mounting structure or pose deflection of a detector body. Once the transmitting and receiving ends of the infrared detector deviate from the preset optical calibration axis, the detection area of the infrared detector deviates, so that serious false alarm or missing alarm phenomenon is caused. Therefore, a single dust removal design is often difficult to cope with high-strength, multi-type pollution sources in the railway field, and the synergistic negative effects under the combined factors of vibration and dust are not fully considered. In summary, the existing anti-pinch sensing device has obvious adaptability deficiency when facing the dual severe working conditions of the special high-intensity vibration and the high-concentration dust of the railway. The sensing unit is easy to degrade due to dust shielding, and the detection is out of alignment due to vibration deflection, so that the reliability of the whole safety system is reduced. Therefore, there is a need for an anti-pinch safety sensing device with dust and attitude correction capabilities to address the specific operating environment of the railcar junction. Disclosure of Invention In order to solve the problems in the prior art, the invention provides the anti-pinch safety sensing device for the railway carriage connection part, which has the characteristics of convenient use, easy adjustment and high detection precision. In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps: A railway car junction anti-pinch safety sensing device comprising: The device comprises an infrared detector, an adjusting mechanism for adjusting the monitoring angle of the infrared detector and a dust removing mechanism for cleaning the infrared detector; the adjustment mechanism is fixed in door edge or coupling clearance through the fixed plate, the adjustment mechanism includes: the infrared detectors are rotatably connected between the first earplates through mounting shafts; The transmission assembly is arranged on the outer side face of one of the first lug plates, is connected with the mounting shaft, and can drive the infrared detector to rotate when being rotated; The dust removing mechanism is arranged at one end of the infrared detector, which transmits and receives signals. The adjusting mechanism further comprises a fixing disc, the fixing disc is fixedly connected with the fixing plate in a mode of being parallel to the fixing plate, and the side face, away from the fix