CN209852449U - Box quick detach connecting device for box semitrailer - Google Patents

Abstract

The utility model discloses a box quick detach connecting device for box semitrailer, including semitrailer chassis and box, the upper portion of semitrailer chassis is equipped with connecting device, the mounting hole has been seted up to the bottom of box, the inside bottom position of box is located the below position fixed mounting of mounting hole has the stopper, connecting device is including bolt, film and locking piece, the one end of film fixed mounting and bolt, the outside top position screw thread that is located the film of bolt has the nut to butt joint, the other end fixed mounting carousel of bolt, the activity groove has been seted up to the bottom position placed in the middle of the locking piece, and the internal surface in activity groove has seted up the spacing groove, the bottom of locking piece is located one side position piston in activity groove and installs the guide pillar. A box quick detach connecting device for box semitrailer, be equipped with mounting hole, lockhole and spring, can realize the function of quick detach fast-assembling to also can play vibration/noise reduction's efficiency.

Description

Box quick detach connecting device for box semitrailer

Technical Field

The utility model relates to a connecting device field, in particular to box quick detach connecting device for box semitrailer.

Background

The box quick-release connecting device for the box type semi-trailer is a quick-release connecting device used for mounting a box body on the box type semi-trailer, the box type semi-trailer is formed by refitting or separately manufacturing a chassis of a box type automobile, the different carriages of the box type semi-trailer can be divided into a passenger compartment type and a carriage type, the carriage of the passenger compartment type and a cab are generally of an integral structure, such as an ambulance, a host vehicle and the like, the carriage of the carriage type and the cab are generally of a split structure, such as a carriage type part-load transport vehicle, a refrigeration and sanitation vehicle and the like, the carriage of the carriage type is generally added on the chassis of the semi-trailer at the later stage, and therefore the connecting device is required to; but current connecting device does not possess the function of quick detach, and later stage dismantlement and reinstallation are all more troublesome, secondly do not possess shock-absorbing function, and the vehicle can produce the collision between carriage and the semitrailer chassis and jolt at the form in-process, does not have shock-absorbing function and will produce great noise, and the result of use is general.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a box quick detach connecting device for box semitrailer can effectively solve the problem that the dismouting among the background art is more troublesome and do not possess shock-absorbing function.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a box quick detach connecting device for box semitrailer, includes semitrailer chassis and box, the upper portion of semitrailer chassis is equipped with connecting device, the mounting hole has been seted up to the bottom of box, the inside bottom position of box is located the below position fixed mounting of mounting hole has the stopper, connecting device is including bolt, film and locking piece, the one end of film fixed mounting and bolt, the outside top position screw thread that is located the film of bolt has the nut to butt joint, the other end fixed mounting carousel of bolt, the movable groove has been seted up to the bottom position placed in the middle of the locking piece, and the internal surface in movable groove has seted up the spacing groove, the bottom of locking piece is located one side position piston in movable groove and has installed the guide pillar, and the outside cover of guide pillar is equipped with the spring.

Preferably, the turntable is movably connected with the limiting groove.

Preferably, the mounting hole is rectangular, and the locking block is matched with the mounting hole.

Preferably, the top end of the guide post is fixedly provided with a limiting sheet, and the diameter of the limiting sheet is larger than that of the spring.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses in, through the locking piece and the mounting hole that set up, the locking piece matches with the mounting hole, people when the installation, direct with the position of the accurate locking piece of mounting hole insert can, then utilize the film to rotate the bolt, thereby rotate the locking piece, can receive the spacing of stopper when the locking piece rotates, consequently can only rotate with the state of mounting hole cross, when presenting the cross state, can fix the railway carriage on semi-trailer chassis, through the guide pillar and the spring that set up, the vibrational force that produces between reduction box that elasticity through the spring can be fine and the semitrailer chassis, thereby noise abatement, excellent in use effect.

Drawings

FIG. 1 is a schematic view of the overall structure of a quick-release connecting device for a box body of a box-type semitrailer of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the quick-release connecting device for a box body of a box type semitrailer of the present invention;

FIG. 3 is a view showing a structure of a connecting device of a quick-release connecting device for a box-type semitrailer of the present invention;

fig. 4 is the utility model discloses a box quick detach connecting device's for semitrailer locking piece and bolt disassembly map.

In the figure: 1. a semitrailer chassis; 2. a box body; 3. a connecting device; 4. mounting holes; 5. a limiting block; 6. a bolt; 7. a negative film; 8. a locking block; 9. a nut; 10. a turntable; 11. a movable groove; 12. a limiting groove; 13. a guide post; 14. a spring; 15. a limiting sheet.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, a quick-release connecting device for a box body of a box type semitrailer comprises a semitrailer chassis 1 and a box body 2, the upper part of the semitrailer chassis 1 is provided with a connecting device 3, the bottom of the box body 2 is provided with a mounting hole 4, a limiting block 5 is fixedly arranged at the bottom position in the box body 2 below the mounting hole 4, the connecting device 3 comprises a bolt 6, a bottom plate 7 and a locking block 8, wherein the bottom plate 7 is fixedly arranged at one end of the bolt 6, a nut 9 is in threaded butt joint with the outer part of the bolt 6 at the position above the bottom sheet 7, a turntable 10 is fixedly arranged at the other end of the bolt 6, a movable groove 11 is arranged at the central position of the bottom of the locking block 8, a limiting groove 12 is formed in the inner surface of the movable groove 11, a guide pillar 13 is arranged at the position, located on one side of the movable groove 11, of the bottom of the locking block 8 in a piston mode, and a spring 14 is sleeved outside the guide pillar 13;

the turntable 10 is movably connected with the limiting groove 12; the mounting hole 4 is rectangular, the locking block 8 is matched with the mounting hole 4, when the semi-trailer is mounted, people can directly insert the mounting hole 4 aiming at the position of the locking block 8, then the bottom plate 7 is utilized to rotate the bolt 6, so that the locking block 8 is rotated, and the locking block 8 can be limited by the limiting block 5 when rotated, so that the semi-trailer can only be rotated to a cross state with the mounting hole 4, and when the cross state is presented, the semi-trailer can be fixed on the semi-trailer chassis 1; the top end of the guide post 13 is fixedly provided with a limiting piece 15, the diameter of the limiting piece 15 is larger than that of the spring 14, the elasticity of the spring 14 can well reduce the vibration force generated between the box body 2 and the semitrailer chassis 1, so that the noise is reduced, and the using effect is better.

It should be noted that, the utility model relates to a box quick-release connecting device for a box type semitrailer, when in use, firstly, an external crane is used to hoist the box body 2 and is perpendicular to a semitrailer chassis 1, then the mounting hole 4 is aligned with the locking block 8 and then the box body 2 is put down, at this time, the locking block 8 has penetrated into the mounting hole 4, people rotate the bolt 6 by using the bottom plate 7, the bolt 6 drives the locking block 8 to press downwards due to the thread effect while rotating, and the locking block 8 can rotate along with the bolt 6 when rotating, but the position of the locking block 8 rotating to the limiting block 5 can be limited and can not rotate, at this time, people continue to rotate the bolt 6, because one end of the bolt 6 is provided with the rotary disc 10, the rotary disc 10 can move in the limiting groove 12 in the movable groove 11, therefore, the bolt 6 can continue to rotate when the locking block 8 can not rotate, therefore, the locking block 8 is continuously pressed downwards by the thread effect of the bolt 6, when the locking block is pressed, the guide post 13 is pressed to contract inwards the locking block 8, so that the spring 14 is compressed, an operator always rotates the bolt 6 until the bolt cannot rotate, then the nut 9 is rotated upwards and is attached to the lower position of the semitrailer chassis 1, so that the bolt 6 is fastened, at the moment, the locking block 8 and the mounting hole 4 are in a cross state and are extruded by the bolt 6, the box body 2 can be firmly fixed on the semitrailer chassis 1, after the nut 9 is dismounted, people only need to dismount the bolt 6, then the locking block 8 is rotated to a position parallel to the mounting hole 4, the box body 2 can be vertically and upwards taken out by a crane, the whole dismounting and mounting process is very simple and convenient, the firmness is high, and the spring 14 can also play a good damping effect in cooperation with the guide post 13, the collision between the box body 2 and the semitrailer chassis 1 in the running process of the vehicle is reduced, and therefore the noise is reduced.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (4)

1. The utility model provides a box quick detach connecting device for box semitrailer which characterized in that: the trailer comprises a semitrailer chassis (1) and a box body (2), wherein a connecting device (3) is arranged on the upper portion of the semitrailer chassis (1), a mounting hole (4) is formed in the bottom of the box body (2), a limiting block (5) is fixedly mounted on the position, below the mounting hole (4), of the bottom of the interior of the box body (2), the connecting device (3) comprises a bolt (6), a bottom sheet (7) and a locking block (8), the bottom sheet (7) is fixedly mounted at one end of the bolt (6), a nut (9) is in threaded butt joint with the position, above the bottom sheet (7), of the exterior of the bolt (6), a turntable (10) is fixedly mounted at the other end of the bolt (6), a movable groove (11) is formed in the middle position of the bottom of the locking block (8), a limiting groove (12) is formed in the inner surface of the movable groove (11), a guide pillar (13) is mounted on a piston at the position, on one side, of the bottom of, and the outer part of the guide post (13) is sleeved with a spring (14).

2. The box body quick-release connecting device for the box type semitrailer according to claim 1, characterized in that: the rotary disc (10) is movably connected with the limiting groove (12).

3. The box body quick-release connecting device for the box type semitrailer according to claim 1, characterized in that: the mounting hole (4) is rectangular, and the locking block (8) is matched with the mounting hole (4).

4. The box body quick-release connecting device for the box type semitrailer according to claim 1, characterized in that: the top end of the guide post (13) is fixedly provided with a limiting sheet (15), and the diameter of the limiting sheet (15) is larger than that of the spring (14).