Search

CN-224213967-U - Auxiliary structure for keeping door handle in horizontal state

CN224213967UCN 224213967 UCN224213967 UCN 224213967UCN-224213967-U

Abstract

The utility model discloses an auxiliary structure for keeping a door handle in a horizontal state, and belongs to the technical field of rail transit vehicle equipment. The structure comprises a lock shell, a main lock shaft and an end door handle, wherein a lock tongue and a locking spring which transversely slide are arranged in the lock shell, a main lock gear is sleeved at the extending end of the main lock shaft, a main lock pull rod which can slide up and down is arranged in the lock shell in a penetrating way, and a side wall meshing rack of the main lock pull rod is meshed with the main lock gear. The upper end and the lower end of the lock shell are penetrated with guide rods, the rod end fixing belt is embedded with a convex pull rod stop block to be matched with the main lock pull rod embedding groove, and the guide rods are sleeved with compression springs to realize bidirectional elastic reset. The structure effectively maintains the initial state of the internal parts of the door lock, improves the action reliability, reduces the maintenance cost, and is particularly suitable for rail transit vehicle door lock systems with strict air tightness requirements.

Inventors

  • CHEN WEI
  • ZHANG ZEKAI
  • ZHANG JINGE
  • WU XIUCHENG
  • WANG YUHUI

Assignees

  • 浙江永贵博得交通设备有限公司

Dates

Publication Date
20260508
Application Date
20250508

Claims (6)

  1. 1. The utility model provides an auxiliary structure that door handle keeps horizontality, includes lock shell (1) and rotates main lock axle (2) of being connected in lock shell (1) middle part, and the middle part lateral sliding of lock shell (1) has tongue (3) that tip butt has locking spring (30), rotates main lock axle (2) and drive tongue (3) overcomes locking spring (30) elasticity and transversely slips outside lock shell (1), and the tip of main lock axle (2) is provided with door handle (20), characterized in that, the part cover that main lock axle (2) stretches into lock shell (1) is equipped with coaxial pivoted main lock gear (4), wears to be equipped with on lock shell (1) and slides from top to bottom and runs through main lock pull rod (5) of lock shell (1), has offered on the lateral wall of main lock pull rod (5) meshing rack (50), and meshing rack (50) with main lock gear (4) looks meshing, the upper and lower both ends of lock shell (1) all wear to be equipped with guide bar (6), guide bar (6) stretches into in the part cover (61) that the inside lock shell (1) stretches into in the compression sleeve (61) of main lock pull rod (6) and compression sleeve, the other end of the locking piece is propped against the side wall of the pull rod stop block (60).
  2. 2. The auxiliary structure for keeping the door handle in the horizontal state according to claim 1, wherein the part of the guide rod (6) extending out of the lock shell (1) is sleeved with a partition sleeve (7), the end part of the guide rod (6) extending out of the lock shell (1) is in threaded connection with a lock nut combination (70), and the bottom of the lock nut combination (70) is propped against the top of the partition sleeve (7).
  3. 3. The auxiliary structure for keeping the door handle in the horizontal state according to claim 1 or 2, wherein the side wall of the main lock pull rod (5) facing the guide rod (6) is provided with an embedding groove (51), the side wall of the pull rod stop block (60) is provided with an embedding protrusion (62) matched with the embedding groove (51), and the embedding protrusion (62) and the pull rod stop block (60) are of an integrated structure.
  4. 4. The auxiliary structure for keeping the door handle in the horizontal state according to claim 1 or 2, wherein the main lock gear (4) is a fluted disc (40) sleeved on the main lock shaft (2), and a plurality of meshing teeth (41) are uniformly distributed on the outer wall of the fluted disc (40) along the arc direction.
  5. 5. An auxiliary structure for keeping a door handle in a horizontal state according to claim 1, wherein said main lock lever (5) is integrally formed with an engagement rack (50).
  6. 6. An auxiliary structure for keeping a door handle in a horizontal state according to claim 1, wherein said main lock shaft (2) has a rectangular cross section, and said main lock gear (4) is provided with a rectangular mounting hole (42) fitted thereto.

Description

Auxiliary structure for keeping door handle in horizontal state Technical Field The utility model belongs to the technical field of rail transit vehicle equipment, and particularly relates to an auxiliary structure for keeping a door handle in a horizontal state. Background With the industrial spanning development of domestic rail transit equipment, a large number of vehicles are manufactured and used, and auxiliary locks are provided for vehicles with strict air tightness requirements. In general, a main lock of an airtight folding door is a latch, and after the latch is locked, an auxiliary lock is required to be locked and unlocked by a main lock handle, and it is necessary that the main lock handle can be kept in an initial state, i.e., a horizontal state, all the time after the operation. Because the main lock handle is linked with the internal part through the rotating shaft, the state of the handle is consistent with the internal part, and if the initial state cannot be maintained, the reliability and the stability of the internal part can be influenced. Disclosure of utility model The utility model aims to provide an auxiliary structure for keeping a door handle in a horizontal state, which can effectively keep a main lock handle in a horizontal state, so that all parts in a door lock keep a good initial state, and the follow-up work is kept more reliable and stable. The purpose of the utility model is realized in the following way: The utility model provides an auxiliary structure that door handle kept horizontality, includes the lock shell and rotates the main lock axle of connecting in the lock shell middle part, and the middle part lateral sliding of lock shell has the tip butt to have the spring bolt of locking spring, rotates main lock axle and drive the spring bolt overcomes the outside lateral sliding of lock shell of locking spring elasticity, and the tip of main lock axle is provided with the door handle, the part cover that main lock axle stretches into the lock shell is equipped with coaxial pivoted main lock gear, wears to be equipped with the main lock pull rod that slides from top to bottom and run through the lock shell on the lock shell, has seted up the meshing rack on the lateral wall of main lock pull rod, and the meshing rack with main lock gear meshes, the guide bar has all been worn at the upper and lower both ends of lock shell, the guide bar stretch into the tip in the lock shell be fixed with the pull rod dog that the main lock pull rod lateral wall looks scarf joint, and the guide bar stretches into the part cover in the lock shell and is equipped with compression spring, compression spring's one end with the inner wall of pull rod counterbalance, its other end with the lateral wall of pull rod dog offsets. The utility model is further characterized in that the part of the guide rod extending out of the lock shell is sleeved with a partition sleeve, the end part of the guide rod extending out of the lock shell is connected with a lock nut combination in a threaded manner, and the bottom of the lock nut combination abuts against the top of the partition sleeve. The utility model is further characterized in that an embedding groove is formed on the side wall of one side, facing the guide rod, of the main lock pull rod, an embedding protrusion matched with the embedding groove is formed on the side wall of the pull rod stop block, and the embedding protrusion and the pull rod stop block are of an integrated structure. The utility model is further characterized in that the main lock gear is a fluted disc sleeved on the main lock shaft, and a plurality of meshing teeth are uniformly distributed on the outer wall of the fluted disc along the arc direction. The utility model further provides that the main lock pull rod and the meshing rack are integrally formed. The utility model is further arranged that the main lock shaft has a rectangular cross section, and the main lock gear is provided with a rectangular mounting hole matched with the main lock gear. Compared with the prior art, the utility model has the following outstanding and beneficial technical effects: 1. The auxiliary structure provided by the utility model has the advantages that the guide rods of the compression springs are connected to the upper end and the lower end of the lock shell, and the main lock pull rod is kept in the initial state in the middle by utilizing the elastic force of the compression springs, so that the door handle at the end part of the main lock shaft is kept horizontal, the whole structure is simple, the use and the maintenance are convenient, the initial state is kept all the time after the door handle is used, and the workload of maintenance work and the cost of maintenance work of the locking structure in the whole life cycle are effectively reduced. 2. The utility model further provides a partition sleeve at the part of the guide rod extending out of the lock shell, and the length of th