External hard bed cover for a pickup truck

1. An external hard bed cover for a pickup truck includes a panel series connected to a cargo hopper, wherein the panels series includes a super large panel ( 14 ), a large panel ( 13 ), a medium panel ( 12 ), and a small panel ( 11 ), the super large panel ( 14 ) is rotationally connected with the large panel ( 13 ), the large panel ( 13 ) is rotationally connected with the medium panel ( 12 ), and the medium panel ( 12 ) is rotationally connected with the small panel ( 11 );

the super large panel ( 14 ) is connected to a cab side of the cargo hopper through a front rail fixing clamp ( 7 ) and a fixing system ( 5 ); the fixing system ( 5 ) includes a fixing system bar ( 51 ) connected to the super large panel ( 14 ), the fixing system bar ( 51 ) is connected to a fixing slider ( 52 ), the fixing slider ( 52 ) is provided with a fixing hole ( 521 ), the front rail fixing clamp ( 7 ) includes a fixing clamp ( 73 ) and a clamp assembly, the clamp assembly includes a third clamping block ( 71 ) and a fourth clamping block ( 72 ), the third clamping block ( 71 ) and the fourth clamping block ( 72 ) are connected by bolts, the fixing clamp ( 73 ) includes a clamping portion connected to the clamp assembly, the fixing clamp ( 73 ) is provided with a limiting hole ( 751 ), a limiting bolt ( 74 ) is threaded to the fixing hole ( 521 ) through the limiting hole ( 751 );

the large panel ( 13 ) is connected to the cargo hopper by a wrench system ( 4 ); the wrench system ( 4 ) includes a transverse wrench bar ( 41 ), a slider ( 42 ) snaps with the transverse wrench bar ( 41 ), and a wrench holder ( 43 ) also snaps with the transverse wrench bar ( 41 ), the slider ( 42 ) is slidingly connected to the transverse wrench bar ( 41 ), the slider ( 42 ) is connected with a wrench ( 44 );

the small panel ( 11 ) is connected to the cargo hopper by a clamp system ( 6 ) and a lock system ( 3 ); the lock system ( 3 ) includes a lock bolt system bar ( 39 ) connected to the small panel ( 11 ), both ends of the lock bolt system bar ( 39 ) are respectively connected with a special-shaped screw ( 34 ) by a bolt base ( 37 ), the middle of the lock bolt system bar ( 39 ) is connected with a steel wire adjuster ( 38 ), a reset spring ( 30 ) is arranged between the lock bolt ( 33 ) and the special-shaped screw ( 34 ), two lock bolts ( 33 ) are respectively connected with the steel wire adjuster ( 38 ) through a steel wire ( 35 ).

2. An external hard bed cover according to claim 1 , wherein the clamping system ( 6 ) includes a first clamping block ( 63 ), a second clamping block ( 64 ), and a support block, the support block includes a clamping surface ( 61 ) and a limiting plane ( 62 ), the clamping surface ( 61 ) and the limiting plane ( 62 ) formed a “T” shaped structure, the limiting plane ( 62 ) is used for locking together with the lock system ( 3 ).

3. An external hard bed cover according to claim 1 , wherein the third clamping block ( 71 ) and the fourth clamping block ( 72 ) are both “L” shaped, and the third clamping block ( 71 ) is connected to a second tightening screw ( 76 ) for supporting the fourth clamping block ( 72 ).

4. An external hard bed cover according to claim 2 , wherein one end of the lock bolt ( 33 ) is used for engaging with the cargo hopper, the other end of the lock bolt ( 33 ) is connected with a steel wire ( 35 ), the steel wire ( 35 ) is connected with a handle ( 32 ) through a pull ring.

5. An external hard bed cover according to claim 4 , wherein the special-shaped screw ( 34 ) includes a fixing end ( 341 ) and a guiding end ( 342 ), the lock bolt ( 33 ) includes a limiting end ( 331 ) and a sliding end ( 332 ), the fixing end ( 341 ) is fixed to the bolt base ( 37 ), the guiding end ( 342 ) sliding connected to the sliding end ( 332 ), a reset spring ( 30 ) is sleeved on the guiding end ( 342 ), two ends of the reset spring ( 30 ) respectively connected to the fixing end ( 341 ) and the sliding end ( 332 ).

6. An external hard bed cover according to claim 5 , wherein the steel wire ( 35 ) is connected to the sliding end ( 332 ), the side of the limiting end ( 331 ) away from the sliding end ( 332 ) is beveled.

7. An external hard bed cover according to claim 4 , wherein the small panel ( 11 ) includes a rectangular frame composed of a middle bar ( 111 ), a tail, rail ( 113 ), and two side rails ( 112 ), and a cover panel connected inside the rectangular frame, the tail rail ( 113 ) and the side rails ( 112 ) are connected by a corner connector ( 114 ), and the middle bar ( 111 ′) and the side rail ( 112 ) are connected by a medium shaft connector ( 115 ).

8. An external hard bed cover according to claim 1 , wherein the transverse wrench bar ( 41 ) is provided with a slot for connecting the wrench holder ( 43 ) and the slider ( 42 ), the slider ( 42 ) is slidingly connected to the slot of the transverse wrench bar ( 41 ), the wrench holder ( 43 ) is used to limit the slider ( 42 ), two wrench holders ( 43 ) are both arranged between two sliders ( 42 ).

9. An external hard bed cover according to claim 1 , wherein further includes a mesh pocket; the mesh pocket is connected with the cargo hopper and the super large panel ( 14 ), the upper part of the mesh pocket is connected to the cargo hopper by a hook, the lower part of the mesh pocket is connected to the cargo hopper by a strap.