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CN-224213975-U - Quick opening mechanism for trolley door handle

CN224213975UCN 224213975 UCN224213975 UCN 224213975UCN-224213975-U

Abstract

The utility model relates to the technical field of automobile parts, in particular to a quick opening mechanism of a trolley door handle, which comprises a trolley door body, wherein a base is arranged on the outer side of the trolley door body, a door handle body and a locking key assembly are arranged on the inner side of the base, the locking key assembly is used for unlocking or locking the door handle body, the door handle body is designed through a detachable handle, a first handle and a second handle are detachably connected through a fastening bolt, an operable mechanical emergency channel is provided for a rescuer when electric control fails completely, the problem that the door handle is locked after the trolley is completely powered off due to accidents or deficiency of electricity is solved, an electromagnet is electrified in a normal electrifying locking state, magnetic force is generated, an iron core on the locking key is attracted, the locking key is enabled to rotate around a hinging point by overcoming the tensile force of a spring, and a bending part of the locking key is inserted into a locking groove of the second handle, so that the whole door handle body is mechanically locked in a stowing position.

Inventors

  • WANG QI

Assignees

  • 上海拓绅汽车电子有限公司

Dates

Publication Date
20260508
Application Date
20250926

Claims (8)

  1. 1. The quick opening mechanism of the trolley door handle comprises a trolley door body (1), wherein a base (2) is arranged on the outer side of the trolley door body (1), and is characterized in that a door handle body (3) and a locking key assembly (4) are arranged on the inner side of the base (2), and the locking key assembly (4) is used for unlocking or locking the door handle body (3); The door handle body (3) comprises a first handle (301), a connecting shaft (302), a torsion spring (303), a second handle (304) and a fastening bolt (305); The first handle (301) and the second handle (304) are detachably connected through the fastening bolt (305), and the torsion spring (303) in a twisted state is used for driving the first handle (301) and the second handle (304) to rotate and reset by taking the connecting shaft (302) as the center.
  2. 2. A quick opening mechanism for a trolley door handle as claimed in claim 1, wherein the connecting shaft (302) is formed at both ends of the first handle (301) and is rotatably connected to the inner side of the base (2).
  3. 3. A quick opening mechanism for a trolley door handle as claimed in claim 1, wherein both ends of the torsion spring (303) are engaged with the base (2) and the first handle (301), respectively, and the tightening bolt (305) in a tightened state is used for butt-fitting the first handle (301) and the second handle (304).
  4. 4. A quick door handle opening mechanism according to claim 1, wherein said tightening bolt (305) in an unscrewed state is used for separating said first handle (301) from said second handle (304) and for using said first handle (301) alone in an emergency.
  5. 5. The quick opening mechanism for a trolley door handle as claimed in claim 1, wherein the latch assembly (4) comprises a cavity (401), an electromagnet (402), a spring (403), a latch (404), a core (405) and a latch slot (406); Cavity (401) shaping in the inner chamber of base (2), electro-magnet (402) fixed mounting in the inboard of cavity (401), spring (403) cover is located the outside of electro-magnet (402), the center department of lock key (404) articulate in the inner wall of cavity (401), iron core (405) set up in one side of lock key (404), locked groove (406) set up in the inside of second handle (304).
  6. 6. The quick door handle opening mechanism according to claim 5, wherein the two ends of the spring (403) are fixedly connected with the locking key (404) and the cavity (401), respectively, and the spring (403) in a telescopic state is used for assisting the locking key (404) to rotate.
  7. 7. The quick opening mechanism for a trolley door handle as claimed in claim 5, wherein an output end of the electromagnet (402) after being energized is used for magnetically attracting the iron core (405), and the electromagnet (402) after being de-energized is used for releasing the attraction force to the iron core (405).
  8. 8. The quick door handle opening mechanism according to claim 5, wherein the locking groove (406) is configured to allow the bent portion of the locking key (404) to be inserted therein, and the locking key (404) and the locking groove (406) in the engaged state are configured to lock positions of the first handle (301) and the second handle (304).

Description

Quick opening mechanism for trolley door handle Technical Field The utility model relates to the technical field of automobile parts, in particular to a quick opening mechanism for a trolley door handle. Background Electric automobile and high-end fuel car generally adopt hidden door handle to reduce windage, promote pleasing to the eye degree, common hidden door handle can pop out automatically or need the user to pop out after slightly pressing when carrying the smart key near, provide the handle for the user. Under the conditions that a serious collision accident (possibly causing automatic power failure of a system) or exhaustion of a vehicle battery (power shortage of a 12V low-voltage storage battery) occurs to the vehicle, the electric control pop-up function of the door handle can be disabled, at the moment, the pure electric drive door handle cannot pop-up and is trapped in the door panel, so that huge barriers are brought to rescue workers (such as firefighters and medical staff) outside the vehicle, the door cannot be quickly opened to rescue passengers in the vehicle, potential safety hazards exist, and the quick opening mechanism of the trolley door handle is provided. Disclosure of utility model The utility model aims to provide a quick opening mechanism for a trolley door handle, which solves the problems in the background technology. In order to achieve the aim, the quick opening mechanism of the trolley door handle comprises a trolley door body, wherein a base is arranged on the outer side of the trolley door body, a door handle body and a locking key assembly are arranged on the inner side of the base, and the locking key assembly is used for unlocking or locking the door handle body; The door handle body comprises a first handle, a connecting shaft, a torsion spring, a second handle and a fastening bolt; The first handle and the second handle are detachably connected through the fastening bolt, and the torsion spring in a twisted state is used for driving the first handle and the second handle to rotate and reset by taking the connecting shaft as the center. Preferably, the connecting shaft is formed at two ends of the first handle, and is rotatably connected with the inner side of the base. Preferably, two ends of the torsion spring are respectively clamped with the base and the first handle, and the fastening bolt in a tightening state is used for butt-jointing and installing the first handle and the second handle. Preferably, the fastening bolt in an unscrewed state is used for separating the first handle from the second handle and for using the first handle alone in an emergency. Preferably, the locking key assembly comprises a cavity, an electromagnet, a spring, a locking key, an iron core and a locking groove; The cavity is formed in the inner cavity of the base, the electromagnet is fixedly installed on the inner side of the cavity, the spring is sleeved on the outer side of the electromagnet, the center of the locking key is hinged to the inner wall of the cavity, the iron core is arranged on one side of the locking key, and the locking groove is formed in the second handle. Preferably, two ends of the spring are fixedly connected with the locking key and the cavity respectively, and the spring in a telescopic state is used for assisting the locking key to rotate. Preferably, the output end of the electromagnet after being electrified is used for magnetically attracting the iron core, and the electromagnet after being powered off is used for releasing the attraction force on the iron core. Preferably, the locking groove is used for allowing the bending part of the locking key to be inserted into the locking groove, and the locking key and the locking groove in the clamping state are used for locking the positions of the first handle and the second handle. Compared with the prior art, the door handle has the beneficial effects that the door handle body is designed through the detachable handle, the first handle and the second handle are detachably connected through the fastening bolt, so that an operable mechanical emergency channel is provided for rescue workers when electric control is completely invalid, and the problem that the door handle is locked after the complete power failure caused by accidents or power shortage of a vehicle is avoided; This key subassembly, when normal circular telegram locking state, the electro-magnet circular telegram, produce magnetic force and attract the iron core on the key, make the key overcome the pulling force of spring and rotate around the pin joint, the bending part of key inserts in the locked groove of second handle, thereby lock whole door handle body machinery in the position of packing up, torsion spring is in the tight energy storage state of turning up this moment, when normal circular telegram unblock popped state, the electro-magnet outage is controlled to the controller, after the magnetic force disappeared, reset state's spring