Semitrailer carriage plate locking mechanism

Abstract

The utility model relates to the technical field of back-up locking mechanisms for trailers, and discloses a semi-trailer carriage plate locking mechanism which comprises a rotating disc assembly, an inserting column assembly, a limiting plate and a fixing assembly, the rotating disc assembly comprises a rotating disc frame, a positioning groove is formed in the outer wall of the rotating disc frame, and a mounting table is mounted on the outer wall of the rotating disc frame; according to the semi-trailer carriage plate locking mechanism, opposite anti-retreating tables are arranged on the outer walls of the two sides of the rotary table frame, the rotary table frame can be directly fixed to a connecting piece through the anti-retreating tables when the rotary table frame is installed, and a positioning groove and a positioning inserting groove are formed in the side wall of the rotary table frame, so that when a lower clamping table makes contact with and is fixed to a plate body, the lower clamping table is fixed to the plate body; space can be provided for movement of the insertion rod, fatigue fracture of the insertion rod can be effectively avoided, the service life of equipment can be effectively prolonged, the fixing effect of the positioning bolt on the positioning sleeve groove can be improved by arranging the insertion block at the tail end of the insertion pin, and torsion borne by the insertion rod can be effectively relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to trailer's reversing locking mechanism technical field, concretely is a kind of semitrailer compartment board locking mechanism. BACKGROUND

[0002] The truck generally includes tractor and trailer, and the trailer is divided into full trailer and semi-trailer, and the full load of full trailer is only borne by the trailer itself, and when in use, the tractor is connected through the hanger, and the tractor only needs to provide power to realize the traction and steering of the full trailer.The main structure of full trailer generally includes frame, platform, rotary disc holder, drawbar, etc., the front end of the frame is located above the rotary disc holder, and the rotary disc is rotatably assembled on the rotary disc holder;The drawbar is assembled on the rotary disc holder, and the platform is assembled on the frame.

[0003] At present, most full trailers use single pin reversing locking structure, and lock pin holes are arranged on the rotary disc holder and the frame, and when reversing, the lock pin is inserted into the lock pin hole on the rotary disc holder and the frame, which can avoid relative rotation between the rotary disc holder and the frame.But this way can only reverse in linear posture, and the vehicle posture needs to be adjusted when inserting and pulling out the lock pin, otherwise the lock pin will be broken under stress during reversing, therefore, a kind of semitrailer compartment board locking mechanism is proposed. UTILITY MODEL CONTENTS

[0004] The utility model provides the following technical scheme: a kind of semitrailer compartment board locking mechanism, including rotary disc assembly, insert post subassembly, limit plate and fixed component;

[0005] As a preferred technical scheme of the utility model, the rotary disc assembly includes rotary disc holder, the outer wall of the rotary disc holder is provided with positioning slot, the outer wall of the rotary disc holder is installed with installation platform, the outer wall of the rotary disc holder is installed with anti-back platform, the outer wall of the rotary disc holder is installed with reinforcing pipe, and the outer wall of the rotary disc holder is provided with positioning slot;

[0006] As a preferred technical scheme of the utility model, the insert post subassembly includes insert rod arranged in the inner wall of positioning slot, the one end of the insert rod is installed with lower clamping platform, the other end of the insert rod is provided with pull rod, and the outer wall of the insert rod is provided with positioning sleeve slot;

[0007] As a preferred technical scheme of the utility model, the limit plate includes plate body arranged on the outer wall of reinforcing pipe, the outer wall of the plate body is provided with arc slot, and the outer wall of the plate body is provided with positioning hole;

[0008] As a preferred technical scheme of the utility model, the fixed component includes positioning bolt arranged in the inner wall of positioning sleeve slot, the inner wall of the positioning bolt is provided with lock pin, and the inner wall of the lock pin is provided with plug.

[0009] As a preferred technical scheme of the utility model, the positioning groove penetrates the rotary disc holder, and the mounting table and the anti-back-off table are located on the two side outer walls of the rotary disc holder.

[0010] As a preferred technical scheme of the utility model, the lower clamping table and the pull rod are integrated equipment, and the positioning sleeve groove and the pull rod are located on the same side.

[0011] As a preferred technical scheme of the utility model, the size of the positioning hole is same with the size of the reinforcing pipe, and the plate body and the reinforcing pipe are slidingly connected.

[0012] As a preferred technical scheme of the utility model, the bolt penetrates the mounting table and the positioning bolt, the bolt and the positioning bolt are slidingly connected, and the plug block and the bolt are slidingly connected.

[0013] As a preferred technical scheme of the utility model, the width of the lower clamping table is same with the inner width of the arc-shaped groove, and the arc-shaped groove and the lower clamping table are symmetrically distributed on the two side outer walls of the plate body.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The semi-trailer compartment plate locking mechanism, by setting the pair of anti-back-off tables on the two side outer walls of the rotary disc holder, can directly fix the rotary disc holder with the connecting piece during installation, and the positioning groove and the positioning slot are opened on the side wall of the rotary disc holder, so that the lower clamping table can provide space for the movement of the plug rod when being fixed with the plate body, thereby effectively avoiding the fatigue breakage of the plug rod, and effectively improving the service life of the equipment, and the plug block at the end of the bolt can also improve the fixing effect of the positioning bolt on the positioning sleeve groove, and can effectively relieve the torsion of the plug rod. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of a semi-trailer compartment plate locking mechanism;

[0017] Figure 2 It is a structure schematic view of a rotary disc assembly in a semi-trailer compartment plate locking mechanism;

[0018] Figure 3 It is a structure schematic view of a fixing assembly in a semi-trailer compartment plate locking mechanism;

[0019] Figure 4 It is a structure schematic view of a limiting plate in a semi-trailer compartment plate locking mechanism.

[0020] In the figure: 100, turntable assembly; 110, turntable frame; 120, positioning groove; 130, mounting table; 140, anti-retreat table; 150, positioning slot; 160, reinforcing pipe; 200, plug column assembly; 210, plug rod; 220, lower clamping table; 230, positioning sleeve slot; 240, pull rod; 300, limiting plate; 310, plate body; 320, arc-shaped slot; 330, positioning hole; 400, fixing assembly; 410, plug pin; 420, plug block; 430, positioning bolt. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figures 1-4The utility model provides a kind of semitrailer compartment board locking mechanism, including carousel assembly 100, plug post assembly 200, limiting plate 300 and fixed assembly 400;Carousel assembly 100 includes carousel frame 110, the outer wall of carousel frame 110 is provided with positioning slot 120, the outer wall of carousel frame 110 is installed with installation platform 130, the outer wall of carousel frame 110 is installed with anti-back platform 140, the outer wall of carousel frame 110 is installed with reinforcing pipe 160, the outer wall of carousel frame 110 is provided with positioning slot 150, positioning slot 120 penetrates carousel frame 110, and installation platform 130 and anti-back platform 140 are located at the two sides of the outer wall of carousel frame 110, due to the particularity of the appearance of anti-back platform 140, can increase the contact area with board car piece when carousel frame 110 is installed with board car piece, and the clamping hole in the inner wall of installation platform 130, then can improve the stability of coupling piece when fixing, plug post assembly 200 includes the plug rod 210 being provided in the inner wall of positioning slot 150, the one end of plug rod 210 is installed with lower clamping platform 220, the other end of plug rod 210 is equipped with pull rod 240, the outer wall of plug rod 210 is provided with positioning sleeve slot 230, lower clamping platform 220 and pull rod 240 are integrated equipment, and positioning sleeve slot 230 and pull rod 240 are located at the same side, fixed assembly 400 includes the positioning bolt 430 being provided in the inner wall of positioning sleeve slot 230, the inner wall of positioning bolt 430 is equipped with latch 410, the inner wall of latch 410 is equipped with plug block 420, latch 410 penetrates installation platform 130 and positioning bolt 430, and the sliding connection between latch 410 and positioning bolt 430, and the sliding connection between plug block 420 and latch 410, the shape of positioning bolt 430 is consistent with positioning sleeve slot 230, so that plug rod 210 is fixed in positioning slot 150, positioning bolt 430 can limit plug rod 210 through positioning slot 120, to improve the fixation of lower clamping platform 220 to board body 310, effectively avoid that arc-shaped groove 320 and lower clamping platform 220 slip, limiting plate 300 includes the board body 310 being provided in the outer wall of reinforcing pipe 160, the outer wall of board body 310 is provided with arc-shaped groove 320, the outer wall of board body 310 is provided with positioning hole 330, the size of positioning hole 330 is same with the size of reinforcing pipe 160, and the sliding connection between board body 310 and reinforcing pipe 160, the width of lower clamping platform 220 is same with the inner width of arc-shaped groove 320, and arc-shaped groove 320 and lower clamping platform 220 are symmetrically distributed on the two sides of the outer wall of board body 310, the width of lower clamping platform 220 is same with the inner width of arc-shaped groove 320, can facilitate worker to unload and load board body 310 later.

[0023] Working principle, when needing to use the equipment, when carousel frame 110 is installed with board car piece, aligns anti-back platform 140 with board car piece, after completing alignment work, plug rod 210 is inserted into positioning slot 150 to be fixed, and positioning bolt 430 is aligned with positioning sleeve slot 230, the installation of equipment is completed.

[0024] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A semi-trailer bed lock mechanism, characterised in that, The utility model relates to a rotary table assembly (100), a plug post assembly (200), a limiting plate (300) and a fixing assembly (400) are included. The rotary table assembly (100) includes a rotary table frame (110), the outer wall of the rotary table frame (110) is provided with a positioning slot (120), the outer wall of the rotary table frame (110) is provided with a mounting table (130), the outer wall of the rotary table frame (110) is provided with an anti-back table (140), the outer wall of the rotary table frame (110) is provided with a reinforcing pipe (160), and the outer wall of the rotary table frame (110) is provided with a positioning slot (150). The plug post assembly (200) includes a plug rod (210) arranged on the inner wall of the positioning slot (150), one end of the plug rod (210) is provided with a lower clamping table (220), the other end of the plug rod (210) is provided with a pull rod (240), and the outer wall of the plug rod (210) is provided with a positioning sleeve slot (230). The limiting plate (300) includes a plate body (310) arranged on the outer wall of the reinforcing pipe (160), the outer wall of the plate body (310) is provided with an arc-shaped slot (320), and the outer wall of the plate body (310) is provided with a positioning hole (330). The fixing assembly (400) includes a positioning bolt (430) arranged on the inner wall of the positioning sleeve slot (230), the inner wall of the positioning bolt (430) is provided with a latch (410), and the inner wall of the latch (410) is provided with an insertion block (420).

2. A lock mechanism for a semitrailer bed plate according to claim 1, characterized in that: The positioning slot (120) penetrates the rotary table frame (110), and the mounting table (130) and the anti-back table (140) are located on the outer walls of both sides of the rotary table frame (110).

3. A lock mechanism for a semitrailer bed plate according to claim 1, characterized in that: The lower clamping table (220) and the pull rod (240) are integrated equipment, and the positioning sleeve slot (230) and the pull rod (240) are located on the same side.

4. A lock mechanism for a semitrailer bed plate according to claim 1, characterized in that: The size of the positioning hole (330) is the same as that of the reinforcing pipe (160), and the plate body (310) and the reinforcing pipe (160) are slidably connected.

5. A lock mechanism for a semitrailer bed plate according to claim 1, characterized in that: The latch (410) penetrates the mounting table (130) and the positioning bolt (430), the latch (410) and the positioning bolt (430) are slidably connected, and the insertion block (420) and the latch (410) are slidably connected.

6. A lock mechanism for a semitrailer bed plate according to claim 1, characterized in that: The width of the lower clamping table (220) is the same as the inner width of the arc-shaped slot (320), and the arc-shaped slot (320) and the lower clamping table (220) are symmetrically distributed on the outer walls of both sides of the plate body (310).

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