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CN-224224993-U - Integrated frame

CN224224993UCN 224224993 UCN224224993 UCN 224224993UCN-224224993-U

Abstract

The utility model relates to the technical field of trailer frames, in particular to an integrated frame which comprises a plastic wheel support for supporting wheels of a bicycle, a turnover locking device for enabling the plastic wheel support to turn over and a square opening connecting device for connecting an external automobile, wherein the plastic wheel support and the square opening connecting device are connected to the bottom of the turnover locking device. The turnover locking device comprises a lower bracket, an upper bracket, a turnover structure and a locking structure. The square mouth connecting device comprises a square mouth pipe and a connecting device. The turnover locking device enables a user to easily lock or unlock the upper bracket and the lower bracket without tools, is convenient for opening the trunk door, and greatly improves the flexibility and the user experience of use. The square opening connecting device adopts an inclined surface tensioning structure and a hand wheel piece, so that the stable connection and the quick disassembly and assembly of the interface tube and the mounting bracket are realized, the stability of connection and the convenience of disassembly and assembly are enhanced, and the square opening connecting device is particularly suitable for the use requirement under outdoor limited conditions.

Inventors

  • WANG YUFENG
  • LIU NING

Assignees

  • 宁波逸路客科技有限公司

Dates

Publication Date
20260512
Application Date
20250730

Claims (5)

  1. 1. The integrated frame is characterized by comprising a plastic wheel support for supporting wheels of a bicycle, a turnover locking device for turning over the plastic wheel support and a square opening connecting device for connecting an external automobile, wherein the plastic wheel support and the square opening connecting device are both connected to the bottom of the turnover locking device; The turnover locking device comprises a lower bracket, an upper bracket, a turnover structure and a locking structure, wherein the first end of the upper bracket is hinged with the first end of the lower bracket through the turnover structure, the locking structure comprises a bolt and a locking piece, the bolt penetrates through the first end and the second end of the upper bracket, the locking piece is arranged at the second end of the upper bracket, the locking piece penetrates through a locking hole for inserting the bolt, the bolt is provided with a first limit post, the first end of the upper bracket is movably connected with a driving frame, the top of the driving frame penetrates through a movable groove for movably connecting the bolt, two sides of the driving frame are respectively penetrated through a limit waist hole for movably connecting the first limit post, a driving part is formed at the bottom of the driving frame so as to be linked with the first limit post to drive the bolt to move in a telescopic manner along the length direction, and the bolt and the locking hole are matched to lock or unlock the upper bracket or the lower bracket; The square mouth connecting device comprises a square mouth pipe and a connecting device, wherein a locking hole is formed in the diagonal position of the square mouth pipe in a penetrating mode, the connecting device comprises a connector pipe, a mounting support and a locking mechanism, the first end of the connector pipe is connected with the mounting support, the second end of the connector pipe is provided with a movable square hole in a penetrating mode, the locking mechanism comprises a first expansion block, a second expansion block and a driving rod, the first expansion block is provided with a first inclined surface, the second expansion block is provided with a second inclined surface and a locking portion, the first inclined surface is attached to the second inclined surface in opposite directions, the first expansion block is connected in the connector pipe in a sliding mode and is connected with the driving rod in a rotating mode, the mounting support is provided with a driving nut in threaded connection with the driving rod so as to enable the locking portion to stretch out and draw back in the movable square hole, the horizontal surface and the vertical surface are all opposite to the inner wall of the square mouth pipe, the two locking plates are arranged on the two opposite sides of the locking plate in a abutting mode.
  2. 2. The integrated frame according to claim 1, wherein the turnover structure comprises two first hinge members and two second hinge members, the two first hinge members are respectively fixed on two sides of the first end of the upper bracket through bolts, the first hinge members are hinged with the first end of the lower bracket, the second hinge members comprise a connecting portion and a stroke portion, the two connecting portions are hinged to the middle portion of the upper bracket and symmetrically arranged, the middle portion of the lower bracket is symmetrically provided with two stroke members, and the stroke portion is penetrated with a stroke groove for sliding connection of the stroke members along the length direction.
  3. 3. The integrated frame according to claim 1, wherein the first end of the upper bracket is provided with a mounting frame and a rotating shaft member, the bolt is arranged on the mounting frame in a penetrating manner, a first rotating hole is formed in the driving frame at a position below the limiting waist hole, a second rotating hole is formed in the bottom of the mounting frame in a penetrating manner, and the rotating shaft member is rotatably connected in the first rotating hole and the second rotating hole; The locking structure further comprises a retaining mechanism, the retaining mechanism acts on the space between the first limiting column and the mounting frame, so that the bolt extends outwards from the second end of the upper bracket and is inserted into the locking hole, the retaining mechanism is a spring piece, the retaining mechanism is sleeved on the bolt, a first interference ring is sleeved on the position between the bolt corresponding to the space between the first limiting column and the mounting frame, and two ends of the retaining mechanism respectively abut against opposite sides of the mounting frame and the first interference ring.
  4. 4. The integrated frame according to claim 1, wherein the first inclined plane and the second inclined plane are parallel to diagonal lines of the movable square hole corresponding to the cross section of the inner cavity of the square hole pipe, the interface pipe is of a square pipe structure, the movable square hole penetrates through any diagonal angle of the inner wall of the interface pipe, the other diagonal angle of the inner wall of the interface pipe opposite to the movable square hole is in contact with the first expansion block, two guide plates are arranged on the inner hole wall of the movable square hole, and two sides of the locking part are respectively abutted against the two guide plates.
  5. 5. The integrated frame according to claim 1, wherein the first expansion block is provided with a rotating hole through which the driving rod is connected in a rotating manner, two openings of the driving rod corresponding to the rotating hole are provided with limiting pieces, the first expansion block is provided with a mounting groove away from the side wall of the mounting bracket, the mounting groove is communicated with the rotating hole, the limiting pieces are provided with gaskets sleeved on the driving rod, the two gaskets are respectively abutted against the side wall of the second expansion block and the inner groove wall of the mounting groove, and the outer diameter of the gaskets is larger than the inner diameter of the rotating hole.

Description

Integrated frame Technical Field The utility model relates to the technical field of trailer frames, in particular to an integrated frame. Background The trailer frame is a device arranged at the tail part of an automobile, is mainly used for fixing and transporting larger articles such as bicycles, and solves the problems that the space of a trunk of the automobile is limited and large articles cannot be accommodated. The wheel support can firmly support the wheels of the bicycle through key parts in the trailer frame, so that the safety and stability in the transportation process are ensured, and a user can conveniently carry the bicycle to travel outdoors or travel daily. However, the trailer frame also has some disadvantages during use. For example, bicycles when loaded on a trailer frame often occupy the opening space of the trunk door of an automobile, resulting in the trunk door not being normally opened. When a user needs to open the trunk, the trailer frame or the bicycle often has to be detached first, and then the trunk door is opened, so that the complexity and the time cost of operation are increased, and the convenience and the overall experience of use are also affected. Disclosure of utility model In view of the above, the utility model provides an integrated frame, which aims to solve the problem that the conventional trailer frame prevents the normal opening of the trunk door of an automobile. The utility model provides an integrated frame which comprises a plastic wheel support for supporting wheels of a bicycle, a turnover locking device for enabling the plastic wheel support to turn over and a square opening connecting device for connecting an external automobile, wherein the plastic wheel support and the square opening connecting device are connected to the bottom of the turnover locking device; The turnover locking device comprises a lower bracket, an upper bracket, a turnover structure and a locking structure, wherein the first end of the upper bracket is hinged with the first end of the lower bracket through the turnover structure, the locking structure comprises a bolt and a locking piece, the bolt penetrates through the first end and the second end of the upper bracket, the locking piece is arranged at the second end of the upper bracket, the locking piece penetrates through a locking hole for inserting the bolt, the bolt is provided with a first limit post, the first end of the upper bracket is movably connected with a driving frame, the top of the driving frame penetrates through a movable groove for movably connecting the bolt, two sides of the driving frame are respectively penetrated through a limit waist hole for movably connecting the first limit post, a driving part is formed at the bottom of the driving frame so as to be linked with the first limit post to drive the bolt to move in a telescopic manner along the length direction, and the bolt and the locking hole are matched to lock or unlock the upper bracket or the lower bracket; The square mouth connecting device comprises a square mouth pipe and a connecting device, wherein a locking hole is formed in the diagonal position of the square mouth pipe in a penetrating mode, the connecting device comprises a connector pipe, a mounting support and a locking mechanism, the first end of the connector pipe is connected with the mounting support, the second end of the connector pipe is provided with a movable square hole in a penetrating mode, the locking mechanism comprises a first expansion block, a second expansion block and a driving rod, the first expansion block is provided with a first inclined surface, the second expansion block is provided with a second inclined surface and a locking portion, the first inclined surface is attached to the second inclined surface in opposite directions, the first expansion block is connected in the connector pipe in a sliding mode and is connected with the driving rod in a rotating mode, the mounting support is provided with a driving nut in threaded connection with the driving rod so as to enable the locking portion to stretch out and draw back in the movable square hole, the horizontal surface and the vertical surface are all opposite to the inner wall of the square mouth pipe, the two locking plates are arranged on the two opposite sides of the locking plate in a abutting mode. In one possible implementation manner, the turnover structure comprises two first hinge parts and two second hinge parts, the two first hinge parts are respectively fixed on two sides of the first end of the upper bracket through bolts, the first hinge parts are hinged with the first end of the lower bracket, the second hinge parts comprise a connecting part and a stroke part, the two connecting parts are hinged to the middle part of the upper bracket and symmetrically arranged, two stroke parts are symmetrically arranged in the middle part of the lower bracket, and the stroke parts are communicated with stroke