Car cover plate, frame connection structure and pickup truck

1. A car cover plate detachably installed on a rear trunk of a vehicle body, comprising:

a plurality of cover plate frame assemblies connected in series, each cover plate frame assembly including:

a plate material ( 1 );

a plurality of frames arranged around the plate material ( 1 ), wherein:

one of the frames is connected to an adjacent frame, and another adjacent frame is connected to a further adjacent frame, such that the plurality of frames are connected in series to surround a periphery of the plate material ( 1 );

a fixed guide rail clamp ( 7 ) connecting a guide rail ( 6 ) to the rear trunk of the vehicle body,

wherein the fixed guide rail clamp ( 7 ) comprises:

an outer clamp ( 71 ) and an inner clamp ( 72 ) fixed by a screw ( 9 ) and a nut ( 10 ),

wherein the nut ( 10 ) is located in a limiting area ( 716 ) of the outer clamp ( 71 ), and a tip of the screw ( 9 ) sequentially passes through a second through hole ( 724 ) of the inner clamp ( 72 ) and a first through hole ( 715 ) of the outer clamp ( 71 ), and is spirally connected to the nut ( 10 ),

wherein the guide rail ( 6 ) is installed on left and right sides of the rear trunk of the vehicle body, wherein an inner side wall of the guide rail ( 6 ) includes a strip-shaped groove ( 61 ), and

a waterproof rubber strip ( 8 ) disposed between the guide rail ( 6 ) and the rear trunk of the vehicle body,

wherein the outer clamp ( 71 ) comprises:

a vertical body ( 711 ) with the first through hole ( 715 ) at a center thereof;

a clamping plate ( 712 ) at a top end of the vertical body ( 711 ) adjacent to the inner clamp ( 72 ), the clamping plate ( 712 ) having a toothed surface ( 713 );

a guide cylinder ( 714 ) at a bottom end of the body ( 711 ) adjacent to the inner clamp ( 72 ), the guide cylinder ( 714 ) being partially open;

wherein the limiting area ( 716 ) is formed at a center of a side of the vertical body ( 711 ) opposite to the inner clamp ( 72 ), the limiting area ( 716 ) being surrounded by two parallel horizontal plates;

wherein the inner clamp ( 72 ) comprises:

a vertical base body ( 721 ) with the second through hole ( 724 ) at a center thereof;

a slider ( 722 ) at a top end of the vertical base body ( 721 ) adjacent to the outer clamp ( 71 ), the slider ( 722 ) being slidably engaged with the strip-shaped groove ( 61 ); and

a guide post ( 723 ) at a bottom end of the vertical base body ( 721 ) adjacent to the outer clamp ( 71 ), the guide post ( 723 ) being inserted into the guide cylinder ( 714 ).

2. The car cover plate according to claim 1 , wherein every two adjacent cover plate frame assemblies are connected through a connecting piece ( 4 ).

3. The car cover plate according to claim 2 , wherein:

a first clamping groove ( 24 ) is formed in a frame of a first cover plate frame assembly of the plurality of cover plate frame assemblies,

a second clamping groove ( 24 ) is formed in a frame of an adjacent second cover plate frame assembly of the plurality of cover plate frame assemblies, and

the first and second clamping grooves ( 24 ) are connected via the connecting piece ( 4 ).

4. The car cover plate according to claim 1 , wherein the outer clamp ( 71 ) and the inner clamp ( 72 ) are oppositely arranged, and tension between the outer clamp ( 71 ) and the inner clamp ( 72 ) is adjusted by the screw ( 9 ) and the nut ( 10 ).

5. A frame connection structure for connecting a plurality of frames disposed on a peripheral side of a plate material ( 1 ), comprising:

a groove formed at an abutting position where each frame contacts the peripheral side of the plate material ( 1 ), wherein the peripheral side of the plate material ( 1 ) is embedded into the groove to circumferentially enclose the peripheral side of the plate material ( 1 );

a fixing member ( 23 ) disposed within a first frame of two adjacent frames, and a limiting member ( 34 ) disposed within a second frame adjacent to the first frame;

wherein the limiting member ( 34 ) is operably connected to the fixing member ( 23 ) via a fastener ( 5 ), thereby securing the two adjacent frames on the peripheral side of the plate material ( 1 );

wherein the fastener ( 5 ) comprises a fixed portion ( 51 ) and a limited portion ( 52 );

the limiting member ( 34 ) defines a second passage ( 35 ) extending therethrough, and a first passage ( 33 ) communicating with and aligned linearly with the second passage ( 35 ), the first passage ( 33 ) being formed in a direction extending away from the limiting member ( 34 );

wherein the fixed portion ( 51 ) sequentially passes through the first passage ( 33 ) and the second passage ( 35 ) to engage with the fixing member ( 23 ), and the limited portion ( 52 ) abuts against a surface of the limiting member ( 34 ).

6. The frame connection structure according to claim 5 , wherein:

a notch ( 32 ) is formed at an end of the first frame, and a complementary notch ( 32 ) is formed at an end of the second frame;

wherein the notch ( 32 ) of the first frame and the complementary notch ( 32 ) of the second frame cooperatively define an alignment cavity when the two adjacent frames are connected.