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CN-224210964-U - Carriage body expanding mechanism

CN224210964UCN 224210964 UCN224210964 UCN 224210964UCN-224210964-U

Abstract

The utility model discloses a carriage expansion mechanism which comprises a transmission mechanism and a sliding mechanism, wherein the transmission mechanism comprises a motor fixedly arranged on the bottom wall of a carriage, a mounting seat, a transmission shaft fixedly arranged at the driving end of the motor and a transmission rack penetrating and sliding arranged on the mounting seat, the transmission shaft and the transmission rack are mutually perpendicular, the transmission shaft is fixedly provided with a transmission gear, the transmission gear and the transmission rack are mutually meshed, one end of the transmission rack is fixedly provided with a connecting seat, the connecting seat is used for being fixedly connected with an expansion cabin side plate, the sliding mechanism is also arranged on the bottom wall of the carriage, and the expansion cabin side plate is simultaneously fixed at the sliding end of the sliding mechanism. The utility model can effectively reduce the occupied space of the expansion mechanism and increase the height of the internal use space.

Inventors

  • Bu Aizhong
  • Pi Xiuhong
  • YUAN SHUAI
  • GUO JIHUA

Assignees

  • 重庆南方迪马专用车股份有限公司

Dates

Publication Date
20260508
Application Date
20250530

Claims (10)

  1. 1. The carriage expansion mechanism is characterized by comprising a transmission mechanism (1) and a sliding mechanism (2), wherein the transmission mechanism (1) comprises a motor (11) fixedly arranged on the bottom wall of a carriage, an installation seat (12), a transmission shaft (13) fixedly arranged on the driving end of the motor (11) and a transmission rack (14) penetrating through and glidingly arranged on the installation seat (12), the transmission shaft (13) and the transmission rack (14) are mutually perpendicular, a transmission gear (131) is fixedly arranged on the transmission shaft (13), the transmission gear (131) and the transmission rack (14) are meshed with each other, a connecting seat (16) is fixedly arranged at one end of the transmission rack (14), the connecting seat (16) is fixedly connected with an expansion cabin side plate, the sliding mechanism (2) is also arranged on the bottom wall of the carriage, and the expansion cabin side plate is simultaneously fixed on the sliding end of the sliding mechanism (2).
  2. 2. The carriage expanding mechanism of claim 1, wherein the driving end of the motor (11) is connected with a speed reducer (15), and the transmission shaft (13) is fixedly arranged at the output end of the speed reducer (15).
  3. 3. The carriage expansion mechanism of claim 2, wherein the speed reducer (15) is a double-output-shaft speed reducer (15), two output shafts of the speed reducer (15) are respectively fixed with transmission shafts (13), two groups of mounting seats (12) are arranged, two groups of mounting seats (12) are positioned on two sides of the speed reducer (15), two groups of mounting seats (12) are respectively penetrated and slide with a transmission rack (14), the two transmission racks (14) are respectively correspondingly meshed with transmission gears (131) of the two transmission shafts (13), the two transmission racks (14) are respectively fixedly provided with a connecting seat (16), and the two connecting seats (16) are respectively used for being fixedly connected with an expansion cabin side plate.
  4. 4. The carriage expanding mechanism according to claim 2, further comprising a manual driving piece (3), wherein a driven bevel gear (34) is fixed on a connecting shaft between the motor (11) and the speed reducer (15), a driving bevel gear (33) is fixed at an output end of the manual driving piece (3), and the driving bevel gear (33) is meshed with the driven bevel gear (34).
  5. 5. The car expansion mechanism according to claim 4, wherein the manual driving member (3) comprises a crank steering box (31) and a gear shaft (32) fixed to an output shaft of the crank steering box (31), and the drive bevel gear (33) is fixed to one end of the gear shaft (32).
  6. 6. The carriage expanding mechanism of claim 5, wherein a gear shaft supporting seat (35) is fixedly arranged on the bottom wall of the carriage, and the gear shaft (32) is arranged on the gear shaft supporting seat (35) in a penetrating mode.
  7. 7. The carriage expansion mechanism of claim 1, wherein the sliding mechanism (2) comprises a first channel steel (21) and a second channel steel (22) which are fixed on the bottom wall of the carriage, the first channel steel (21) and the second channel steel (22) are arranged in parallel, a first movable rod (24) is slidably arranged between the first channel steel (21) and the second channel steel (22), the sliding direction of the first movable rod (24) is parallel to the transmission rack (14), and the first movable rod (24) is used for being fixed on an expansion cabin side plate.
  8. 8. The carriage expanding mechanism of claim 7, wherein at least one bearing (26) is arranged between the first channel steel (21) and the second channel steel (22), and the first movable rod (24) is arranged between the first channel steel (21) and the second channel steel (22) and is placed on the at least one bearing (26).
  9. 9. The carriage expanding mechanism of claim 7, wherein two transmission mechanisms (1) are arranged, the arrangement direction of the two transmission mechanisms (1) is parallel to the sliding direction of the movable channel steel, the moving directions of transmission racks (14) of the two transmission mechanisms (1) are far away from each other, and expanding cabin side plates are fixedly arranged on the transmission racks (14) of the two transmission mechanisms (1) respectively.
  10. 10. The carriage expansion mechanism of claim 9, wherein a third channel steel (23) is arranged on one side, far away from the second channel steel (22), of the first channel steel (21), a second movable rod (25) and at least one bearing (26) are arranged between the first channel steel (21) and the third channel steel (23), the second movable rod (25) is placed on the at least one bearing (26), and the second movable rod (25) is also used for fixing an expansion cabin side plate.

Description

Carriage body expanding mechanism Technical Field The utility model relates to the technical field of vehicle expansion mechanisms, in particular to a carriage expansion mechanism. Background In the fields of special vehicles, special vehicles and refitted vehicles, an expansion mechanism is arranged in a carriage to expand the carriage in the horizontal direction so as to expand the inner space of the carriage. The special vehicle or special vehicle usually has a fixed overall height, and most of the expansion mechanisms adopt an up-down structure of which the sliding mechanism and the transmission mechanism are integrated, namely, the sliding mechanism is arranged above the transmission mechanism and is fixedly arranged at the driving end of the transmission mechanism. However, in order to ensure the comfort of the personnel in the vehicle, the height requirement of the internal use space of the vehicle compartment is generally required to be regulated, and the occupied space is increased under the condition that the height of the vehicle body is fixed and the height of the expansion mechanism is large, so that the height of the internal use space is reduced under the condition that the total height is unchanged, and the height requirement of the internal use space cannot be met. Disclosure of utility model The utility model aims to solve the technical problem of providing a carriage body expanding mechanism which can effectively reduce the occupied space of the expanding mechanism and increase the height of the internal use space. In order to solve the technical problems, the carriage body expanding mechanism provided by the utility model adopts the following technical scheme: The carriage expansion mechanism comprises a transmission mechanism and a sliding mechanism, wherein the transmission mechanism comprises a motor fixedly arranged on the bottom wall of a carriage, a mounting seat, a transmission shaft fixedly arranged on the driving end of the motor and a transmission rack penetrating through the motor and arranged on the mounting seat in a sliding manner, the transmission shaft and the transmission rack are arranged vertically to each other, the transmission shaft is fixedly provided with a transmission gear, the transmission gear and the transmission rack are meshed with each other, one end of the transmission rack is fixedly provided with a connecting seat, the connecting seat is fixedly connected with an expansion cabin side plate, the sliding mechanism is also arranged on the bottom wall of the carriage, and the expansion cabin side plate is simultaneously fixed at the sliding end of the sliding mechanism. By adopting the technical scheme, as the transmission gear on the transmission shaft is meshed with the transmission rack, the motor drives the transmission shaft to rotate, and the transmission rack can be driven to linearly move relative to the mounting seat. The connecting seat is fixed on the expansion cabin side plate, and the transmission rack can drive the expansion cabin side plate to move so as to realize the horizontal expansion of the vehicle compartment body. The sliding mechanism can support the expanding cabin in the moving process, and sliding resistance born by the side plates of the expanding cabin is reduced through the sliding end of the sliding mechanism. The transmission mechanism and the sliding mechanism are mutually independent and are arranged on the bottom wall of the carriage body, the height space required by the installation of the traditional expansion mechanism is 330mm, the space required by the installation of the expansion mechanism is reduced to 230mm, the height of the space used in the shelter is increased by 100mm, and the space requirement of a user can be better met. Optionally, the drive end of motor is connected with the speed reducer, transmission shaft fixed mounting is in the output of speed reducer. By adopting the technical scheme, the configuration speed reducer can avoid inefficiency or overload caused by direct driving of the load by the motor, improve driving precision and stability, control the moving distance of the expansion cabin more stably and accurately, namely, expand the space of the vehicle carriage more safely, stably and accurately. Optionally, the speed reducer is two output shaft speed reducer, two output shafts of speed reducer all are fixed with the transmission shaft, the mount pad sets up to two sets of, two sets of the mount pad both sides of speed reducer, two sets of the mount pad all wears to establish and slide and have the drive rack, two the drive rack corresponds the drive gear who meshes in two transmission shafts respectively, two the drive rack is all fixed to be provided with the connecting seat, two the connecting seat is all used for fixed connection in expansion cabin curb plate. Through adopting above-mentioned technical scheme, set up two output shaft speed reducers and drive two drive racks respectively, d