CN219564683U - Trailer frame overturning locking structure - Google Patents

Abstract

The utility model discloses a turnover locking structure of a trailer frame, which 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 upper bracket, the locking piece is arranged at the second end of the upper bracket, and a locking hole is formed in the locking piece in a penetrating mode; the bolt is provided with first spacing post, and the first end swing joint of upper bracket has the drive frame, and the top of drive frame has the movable slot to link up, and the both sides of drive frame all link up there is the spacing waist hole that supplies first spacing post swing joint, and the bottom of drive frame is formed with drive division to the flexible activity of length direction is followed to the first spacing post of linkage drive bolt, and bolt and locking hole cooperation are in order to lock or unblock upper bracket or lower carriage. The locking or unlocking of the upper bracket and the lower bracket can be realized by a user without using a tool, the operation is convenient, and the user experience is improved.

Description

Trailer frame overturning locking structure

Technical Field

The utility model relates to the technical field of trailer frames, in particular to a turnover locking structure of a trailer frame.

Background

At present, people usually carry articles such as luggage, articles for daily use, bicycles and the like during outdoor travel, and because the space of the trunk of the automobile is limited, larger articles such as bicycles and the like are difficult to put into the trunk, a trailer frame is arranged at the tail part of the automobile and is used for loading the bicycles. For example, patent publication number CN203580913U discloses a trailer frame, which is composed of a first fixing member, a cantilever and a second fixing member, wherein an elliptical hole is provided on the first fixing member, and a threaded hole is provided on the second fixing member to be fixed on a tail bracket of an automobile by the cooperation of a bolt and the threaded hole. However, when the trailer frame is loaded with the bicycle, the bicycle occupies the unfolding space of the automobile trunk, and the opening movement of the movable door of the automobile trunk is easy to interfere, so that a user can open the automobile trunk after unloading the trailer frame and the bicycle or unloading the trailer piece and the automobile tail bracket by using the tool, the operation is inconvenient, and the user experience is reduced.

Disclosure of Invention

The utility model aims to solve the defects of the technology, and provides the overturning locking structure of the trailer frame, which can realize the locking or unlocking of the upper bracket and the lower bracket without using tools by a user, is convenient to operate and improves the user experience.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the turnover locking structure of the trailer frame 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, and a locking hole for the bolt to be inserted is formed in the locking piece in a penetrating mode;

the bolt is provided with first spacing post, the first end swing joint of upper bracket has the drive frame, the top of drive frame is had a perfect understanding and is supplied the movable slot of bolt activity, the both sides of drive frame are all had a perfect understanding and are supplied spacing waist hole of first spacing post swing joint, the bottom of drive frame is formed with drive division, in order to link first spacing post orders about the bolt is along length direction flexible activity, the bolt with locking hole cooperation is in order to lock or unblock upper bracket or lower carriage.

Preferably, the driving part comprises two bending plates, the driving frame and the driving part are of an L-shaped structure, and a pedal part is arranged between the two bending plates.

Preferably, the turnover structure comprises two first hinge parts, the two first hinge parts are respectively fixed on two sides of the first end of the upper bracket through bolts, and the first hinge parts are hinged with the first end of the lower bracket.

Preferably, the turnover structure further comprises two second hinge parts, each second hinge part comprises a connecting part and a stroke part, the two connecting parts are hinged to the middle of the upper bracket and symmetrically arranged, two stroke parts are symmetrically arranged in the middle of the lower bracket, and the stroke parts are communicated with a stroke groove for sliding connection of the stroke parts along the length direction.

Preferably, the first end of upper bracket is provided with mounting bracket and pivot spare, the bolt wears to locate the mounting bracket, the drive frame corresponds the below department in spacing waist hole has link up first pivot, the bottom of mounting bracket has link up the second pivot, pivot spare rotate connect in first pivot with in the second pivot.

Preferably, the locking structure further comprises a retaining mechanism, and the retaining mechanism acts between the first limiting post 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.

Preferably, the retaining mechanism is a spring member, the retaining mechanism is sleeved on the bolt, a first abutting ring is sleeved between the bolt corresponding to 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 abutting ring.

Preferably, a second limit post is arranged at the end part of the bolt, which is far away from the locking piece, and a second interference ring is sleeved between the bolt corresponding to the second limit post and the lower bracket.

Preferably, the end of the bolt inserted into the locking hole is provided with an inclined plane, the top of the locking piece is provided with a guide plate, and the guide plate is obliquely arranged towards the upper bracket and is attached to the inclined plane.

Preferably, the second end of the upper bracket is provided with a U-shaped upright rod.

Compared with the prior art, the utility model has the beneficial effects that: the lower carriage is connected with the tail of the automobile, the upper carriage is hinged with the lower carriage through two first hinge parts, when the upper carriage and the lower carriage are folded, the bolt is inserted into the locking hole, so that the folding state of the upper carriage and the lower carriage is locked, a user can load articles such as bicycles and luggage on the upper carriage, when the user needs to open a trunk of the tail of the automobile, the driving frame is stepped down to enable the limiting waist hole to be linked with the first limiting column, the bolt is close to one side close to the mounting frame, the bolt is pulled out from the locking hole, so that the upper carriage and the lower carriage are unlocked, the user can outwards overturn the upper carriage, space is provided for the opening movement of the movable door of the trunk, the user can lock or unlock the upper carriage and the lower carriage without using tools, the operation is convenient, and the user experience is improved.

Drawings

FIG. 1 is a schematic structural view of this embodiment;

FIG. 2 is an enlarged view of region A of FIG. 1;

FIG. 3 is a cross-sectional view of this embodiment with the locking structure locked;

FIG. 4 is a cross-sectional view of the embodiment with the locking structure unlocked

FIG. 5 is a block diagram of this embodiment with the upper and lower brackets in a deployed state;

fig. 6 is an exploded view of this embodiment.

In the figure: 1. a lower bracket; 2. an upper bracket; 3. a first hinge; 4. a second hinge; 41. a connection part; 42. a stroke part; 5. a plug pin; 6. a locking member; 7. a holding mechanism; 8. a mounting frame; 9. a first limit post; 10. the second limit column; 11. a locking hole; 12. a drive rack; 13. a movable groove; 14. limiting the waist hole; 15. a driving section; 16. a foot step part; 17. a first rotating hole; 18. a second rotary hole; 19. a rotating shaft member; 20. a first interference ring; 21. a second interference ring; 22. an inclined plane; 23. a guide plate; 24. a travel member; 25. a travel groove; 26. a buffer member; 27. u-shaped upright posts; 28. a fixing plate; 29. and a fixing hole.

Detailed Description

The utility model is further described below by way of examples with reference to the accompanying drawings.

Referring to fig. 1 to 5, a trailer frame overturning locking structure comprises a lower bracket 1, an upper bracket 2, an overturning structure and a locking structure, wherein one side of the lower bracket 1 is provided with a fixing structure, the fixing structure is composed of two fixing plates 28, the fixing plates 28 penetrate through fixing holes 29, and the fixing plates 28 are connected to the tail of an automobile in a matched mode through bolts and the fixing holes 29.

The turnover structure comprises two first hinging parts 3 and two second hinging parts 4, wherein the first hinging parts 3 are composed of two triangular plates, the two first hinging parts 3 are respectively fixed on two sides of the first end of the upper bracket 2 through bolts, the first hinging parts 3 are hinged with the first end of the lower bracket 1, the second end of the upper bracket 2 is provided with a U-shaped vertical rod 27, and a user can grasp the U-shaped vertical rod 27 to drive the upper bracket 2 to carry out folding action or unfolding action on the lower bracket 1.

The second hinge member 4 comprises a connecting part 41 and a stroke part 42, the two connecting parts 41 are hinged at the middle part of the upper bracket 2 and are symmetrically arranged, two stroke members 24 are symmetrically arranged in the lower bracket 1, the stroke part 42 is penetrated with a stroke groove 25 for sliding connection of the stroke members 24 along the length direction, when the upper bracket 2 turns outwards, the upper bracket 2 is hinged on the lower bracket 1 through the first hinge member 3 until the inner groove wall of the stroke groove 25 is in contact with the stroke members 24, the stroke groove 25 prevents the upper bracket 2 from continuing to move, and the second hinge member 4 is matched with the stroke members 24 to limit the turning action of the upper bracket 2 on the lower bracket 1;

the first end of the travel slot 25 is close to the connecting part 41, and when the travel piece 24 is in contact with the first end of the travel slot 25, the upper bracket 2 and the lower bracket 1 are in an unfolded state;

the second end of the travel groove 25 is away from the connecting portion 41, and when the travel piece 24 collides with the second end of the travel groove 25, the upper bracket 2 and the lower bracket 1 are in a folded state.

The locking structure comprises a bolt 5, a locking piece 6 and a retaining mechanism 7, wherein a mounting frame 8 is arranged at the first end of an upper bracket 2, the bolt 5 penetrates through the upper bracket 2 and the mounting frame 8, a first limit post 9 is arranged at the position, corresponding to the mounting frame 8, of the bolt 5, the locking piece 6 is arranged at the second end of the upper bracket 2 and is positioned between two fixing plates 28, the locking piece 6 penetrates through a locking hole 11, the retaining mechanism 7 is a spring piece, the retaining mechanism 7 is sleeved on the bolt 5, a first interference ring 20 is sleeved at the position, corresponding to the position, between the first limit post 9 and the mounting frame 8, of the bolt 5, two ends of the retaining mechanism 7 respectively abut against opposite sides of the mounting frame 8 and the first interference ring 20, and the retaining mechanism 7 acts between the first limit post 9 and the mounting frame 8 so that the bolt 5 outwards extends from the second end of the upper bracket 2 and is spliced in the locking hole 11. The first end department that bolt 5 exposes upper bracket 2 is provided with second spacing post 10, and the department cover is equipped with second conflict ring 21 between the corresponding second spacing post 10 of bolt 5 and the first end of lower carriage 1, and second conflict ring 21 is contradicted with the lateral wall of the first end of upper bracket 2 for spacing bolt 5 lateral movement avoids the tip of bolt 5 to break away from upper bracket 2.

The mounting bracket 8 is movably connected with the driving bracket 12, a first rotating hole 17 is formed in the lower portion of the driving bracket 12 corresponding to the limiting waist hole 14 in a penetrating mode, a second rotating hole 18 is formed in the bottom of the mounting bracket 8 in a penetrating mode, a rotating shaft piece 19 is connected between the mounting bracket 8 and the driving bracket 12 in a rotating mode, the rotating shaft piece 19 is connected in the first rotating hole 17 and the second rotating hole 18 in a rotating mode, and the driving bracket 12 is guided to rotate along the circumferential direction of the rotating shaft piece 19. The top of the driving frame 12 is penetrated with a movable groove 13 for the bolt 5 to move, two sides of the driving frame 12 are penetrated with limiting waist holes 14, and two ends of the first limiting column 9 are respectively and movably connected in the two limiting waist holes 14.

The end of bolt 5 in inserting locking hole 11 is formed with inclined plane 22, the top of locking piece 6 is provided with guide board 23, guide board 23 slope setting and laminating mutually with inclined plane 22 towards upper bracket 2, when upper bracket 2 folds down support 1, bolt 5 moves along with upper bracket 2, inclined plane 22 and guide board 23 laminating conflict, guide inclined plane 22 moves down along the surface of guide face, so that bolt 5 is close to translation to drive first spacing post 9 to mounting bracket 8, first spacing post 9 drives first conflict ring 20 and makes its deformation to holding mechanism 7 application of pressure, when the tip of bolt 5 corresponds with locking hole 11, holding mechanism 7 resumes the deformation, drive first spacing post 9 and stretch out and draw back the activity along length direction, so that bolt 5 outwards stretches out along the one side that keeps away from mounting bracket 8 and peg graft in locking hole 11, maintain the state that bolt 5 inserts in locking hole 11, prevent bolt 5 from deviating from locking hole 11, thereby locking the folding state of upper bracket 2 and lower bracket 1.

The bottom of the driving frame 12 is formed with a driving part 15, the driving part 15 comprises two bending plates, so that the driving part 15 and the driving frame 12 are of an L-shaped structure, a cylindrical pedal part 16 is arranged between the two bending plates, the pedal part 16 is used for a user to step down, and the user can press the pedal part 16 by stepping down to press the interlocking locking structure so as to unlock the upper bracket 2 and the lower bracket 1. When a user needs to open the trunk at the tail of the automobile, the foot stepping part 16 is stepped down to enable the limiting waist hole 14 to link the first limiting column 9 to move in the limiting waist hole 14, the first limiting column 9 overcomes the work of the holding mechanism 7, the bolt 5 stretches out and draws back along the length direction and moves close to one side of the mounting frame 8, so that the bolt 5 is pulled out from the locking hole 11 to be separated, the upper bracket 2 and the lower bracket 1 are unlocked, the user can outwards overturn the upper bracket 2, the upper bracket 2 is unfolded, space is provided for opening the movable door of the trunk, in the process, the user can lock or unlock the upper bracket 2 and the lower bracket 1 without using tools, the operation is convenient, and the user experience is improved.

The top of the lower support 1 is symmetrically provided with two buffer pieces 26, the buffer pieces 26 are made of rubber materials and have good elasticity, when the upper support 2 and the lower support 1 are in a folded state, the top surfaces of the buffer pieces 26 are in contact with the bottom surfaces of the upper support 2 to buffer the impact force generated when the upper support 2 is folded towards the lower support 1, and at the moment, the upper support 2 and the lower support 1 are parallel, so that a user can load articles such as bicycles, luggage and the like at the position of the upper support 2.

Of course, the above is only a typical example of the utility model, and other embodiments of the utility model are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the utility model claimed.

Claims (10)

1. A trailer frame overturning locking structure is characterized in that: the device comprises a lower bracket (1), an upper bracket (2), a turnover structure and a locking structure, wherein the first end of the upper bracket (2) is hinged with the first end of the lower bracket (1) through the turnover structure;

the locking structure comprises a bolt (5) and a locking piece (6), wherein the bolt (5) penetrates through the first end and the second end of the upper bracket (2), the locking piece (6) is arranged at the second end of the upper bracket (2), and a locking hole (11) for the bolt (5) to be inserted is formed in the locking piece (6) in a penetrating mode;

the utility model discloses a bolt, including upper bracket (2), bolt (5), upper bracket (2), bolt (5), upper bracket (12), upper bracket (2), upper bracket (5), lower bracket (1), bolt (5) are provided with first spacing post (9), first end swing joint of upper bracket (2) has drive frame (12), the top of drive frame (12) is had the confession to link up movable groove (13) of bolt (5) activity, both sides of drive frame (12) are all had the confession the spacing waist hole (14) of first spacing post (9) swing joint, the bottom of drive frame (12) is formed with drive portion (15), in order to link first spacing post (9) order about bolt (5) follow length direction flexible activity, bolt (5) with locking hole (11) cooperate in order to lock or unblock upper bracket (2) or lower bracket (1).

2. The trailer frame rollover locking structure as set forth in claim 1, wherein: the driving part (15) comprises two bending plates, the driving frame (12) and the driving part (15) are of an L-shaped structure, and a pedal part (16) is arranged between the two bending plates.

3. The trailer frame rollover locking structure as set forth in claim 1, wherein: the turnover structure comprises two first hinge parts (3), the two first hinge parts (3) are respectively fixed on two sides of the first end of the upper bracket (2) through bolts, and the first hinge parts (3) are hinged with the first end of the lower bracket (1).

4. A trailer frame roll-over lock as claimed in claim 3, wherein: the turnover structure further comprises two second hinging pieces (4), each second hinging piece (4) comprises a connecting part (41) and a stroke part (42), the two connecting parts (41) are hinged to the middle of the upper bracket (2) and symmetrically arranged, the two stroke parts (24) are symmetrically arranged in the middle of the lower bracket (1), and the stroke parts (42) are communicated with a stroke groove (25) for sliding connection of the stroke parts (24) along the length direction.

5. The trailer frame rollover locking structure as set forth in claim 1, wherein: the first end of upper bracket (2) is provided with mounting bracket (8) and pivot spare (19), bolt (5) wear to locate mounting bracket (8), drive frame (12) are corresponding spacing waist hole (14) below department is link up there is first pivot (17), the bottom of mounting bracket (8) is link up there is second pivot (18), pivot spare (19) rotate connect in first pivot (17) with in second pivot (18).

6. The trailer frame rollover locking structure as set forth in claim 5, wherein: the locking structure further comprises a retaining mechanism (7), wherein the retaining mechanism (7) acts between the first limiting column (9) and the mounting frame (8), so that the bolt (5) extends outwards from the second end of the upper bracket (2) and is inserted into the locking hole (11).

7. The trailer frame rollover locking structure as set forth in claim 6, wherein: the retaining mechanism (7) is a spring piece, the retaining mechanism (7) is sleeved on the bolt (5), the bolt (5) corresponds to the first limit column (9) and a first interference ring (20) is sleeved between the mounting frame (8), and two ends of the retaining mechanism (7) are respectively interfered with opposite sides of the mounting frame (8) and the first interference ring (20).

8. The trailer frame rollover locking structure as set forth in claim 1, wherein: the end part of the bolt (5) far away from the locking piece (6) is provided with a second limit post (10), and a second collision ring (21) is sleeved between the bolt (5) corresponding to the second limit post (10) and the lower bracket (1).

9. The trailer frame rollover locking structure as set forth in claim 1, wherein: the end part of the bolt (5) inserted into the locking hole (11) is provided with an inclined plane (22), the top of the locking piece (6) is provided with a guide plate (23), and the guide plate (23) is obliquely arranged towards the upper bracket (2) and is attached to the inclined plane (22).

10. The trailer frame rollover locking structure as set forth in claim 1, wherein: the second end of the upper bracket (2) is provided with a U-shaped upright (27).