Patent Publication Number: US-2023144005-A1

Title: Bed cover connection device

Description:
TECHNICAL FIELD 
     This invention is relevant to auto parts field, especially about the bed cover connection device. 
     BACKGROUND TECHNOLOGY 
     Pickup car, also known as the sedan truck, has a cargo hopper for loading goods; since the truck&#39;s cargo hopper is open, in order to avoid the rain from wetting the goods inside in rainy and snowy weather, people designed a bed cover and installed the cover on the cargo hopper of pickup, so as to cover the goods inside the hopper and avoid the goods from getting wet by rain. 
     However, the existing connection device uses a hidden structure of wire rope, which is not convenient to pull. 
     About the Invention 
     In view of this, the purpose of this invention is to provide a bed cover connection device, by changing the wire rope from hidden to open to facilitate pulling. 
     Thus the invention use the following method:
         A bed cover connection device for pickup truck includes a sidebar lock system which is connected to two sidebars, a large rear bar lock system which is connected to the rear bar and multiple intermediate node blocks.   The sidebar locking, system includes a sidebar lock base, the sidebar lock base is provided with a locking, cavity.   There are two large rear bar lock systems, the two large rear-bar lock systems are set corresponding to the two side-bar lock systems, the large rear-bar lock system includes a rear-bar lock block and a lock connection shaft, the rear-bar lock block is connected to the rear bar, the lock connection shaft passes through the rear-bar lock block, one end of the lock connection shaft is connected with a lock matches the lock cavity, the other end of the lock connection shaft is connected with a connector for connecting the wire rope, the lock connection shaft is provided with a spring, one end of the spring is connected to the lock, the other end of the spring is connected to the rear bar lock block.   The interior of the rear bar lock block is a step hole structure, the spring comes to the step hole.   A plurality of intermediate node blocks are all connected to the rear bar, the wire rope passes through the intermediate node block, both ends of the wire rope are respectively connected to two connectors.   By setting the wire rope, users can pull the wire rope to pull the lock out of the lock cavity, so as to open the rear bar, by setting up a plurality of intermediate node blocks to separate the wire rope into several segments, so as to facilitate the pulling the wire rope.   The sidebar lock base includes a slide-in groove, the rear bar lock block includes a block which is matches the slide-in groove, the block is a cylinder. The slide-in groove is a “√” shape and the slide-in, groove is provided with, a limited protrusion at the end near rear-bar lock block, which is used to stop the block, by setting the slide-in groove and block, the block can slide into the slip-in groove and snap in with it, when the user closes the lid to lock, the block of the rear-bar locking block first falls into the slide-in groove on the first fixing block, the lock rotates at a certain angle with the cylindrical block as the lid is gradually closed, so that, the lock is squeezed by the lock cavity and compressed into the inner ladder hole, ejected, and then snapped into the lock cavity to complete the closing operation of the car cover, the connector is provided with an mounting hole for connecting the wire rope.   The bed cover connection device includes two aluminum pressed wires, the two aluminum pressed wires are located between the two connector which is corresponding to the two ends of the wire rope respectively, the aluminum pressed wire is used to connect with the wire rope. By setting the mounting holes and aluminum pressed wire, the wire rope and the lock shaft can be secured well to ensure the force strength.       

     The lock connection shaft includes a threaded segment and a connection segment, the lock ( 3401 ) is connected to the threaded segment by thread, the connection segment is provided with a fixed connector. The lock and the lock connection shaft are fixed through threads, which not only ensures the strength of the connection of the lock but also facilitates the replacement of the lock. 
     There are two intermediate node blocks, the intermediate node block is provided with a cross-wire hole for passing through the wire rope, and by setting two intermediate node blocks, the wire rope can be separated into three segments, which is convenient for users to pull. 
     The outer upper surface of the locking cavity is oblique, the inner upper surface of the locking cavity is flat, the end of the lock is curved. The outer side of the lock cavity is designed as a bevel, so that it can produce a squeeze force on the lock when the lock touches the outer wall of the lock cavity, so as to facilitate the locking of the bed cover. The inner side of the lock cavity is designed as a plane can effectively prevent the lock from sliding out, when the user pulls the wire rope to open the bonnet, the lock is pulled back into the ladder hole, and the user can lift the lid up to complete the cover opening operation. 
     The bed cover connection device includes a sidebar anti-tilting structure which is arranged above the sidebar, the sidebar anti-tilting structure is used to prevent the sidebar from tilting, the sidebar anti-tilting structure is comprised of the bottom bulge point on the sidebar, which can form a fulcrum with the hard, contact of the sidebar to prevent the sidebar from tilting. 
     The beneficial effect of the invention is: firstly, by separating the wire rope into three segments, one of the sections can be pulled to open the lock, so as to facilitate user&#39;s operation, then, setting the sidebar anti-tilting structure to form a fulcrum with the hard contact of the sidebar to prevent the sidebar from tilting. 
    
    
     
       DESCRIPTION OF DRAWINGS 
         FIG.  1    is a structure illustration  1  of this invention; 
         FIG.  2    is a structure illustration  2  of this invention; 
         FIG.  3    is a partial enlarged diagram of part A in  FIG.  2   ; 
         FIG.  4    is a structure illustration of cylindrical lock constriction in this invention; 
         FIG.  5    is a structure illustration  1  of rear bar lock system in this invention 
         FIG.  6    is a structure illustration  2  of rear bar lock system in this invention 
         FIG.  7    is a diagram of the connection of the anti-tilting structure of the sidebar in this invention 
     
    
    
       2 —sidebar lock system;  21 —sidebar lock base;  2101 —slide-in groove;  2102 —lock cavity;  22 —sidebar;  2201 —sidebar anti-tilting structure:  3 —large rear bar lock system;  31 —rear-bar locking block;  3101 —block;  32 —lock connection shaft;  3201 —connector;  3202 —threaded segment;  3203 —connection segment;  33 —aluminum pressed wire;  3401 —loc;  3501 —wire rope;  36 —intermediate node blocks;  37 —spring;  4 —Rear Bar. 
     The Concrete Method to Carry Out 
     The invention is further explained in combination with attached drawings and specific embodiments below. It should be noted here that the following descriptions of the embodiment is intended to help understand the present invention rather than constitute a limitation of this invention. The functional details disclosed by the invention are used only to describe the example embodiment of the invention. However, the invention can also be embodied in many alternative forms, and should not be understood as the limitation of the invention in the embodiment described in the present invention. 
     It should also be noted that the terms used in the present invention only to describe a particular embodiment, not to limit the example embodiment of the invention. If the terms “includes”, “includes”, “contains” and/or “contains” are used in the invention, they specify only the existence of the declared features, integers, steps, operations, units and/or components, and does not exclude the existence or addition of one or more other features, quantities, steps, operations, units, components and/or their combinations. 
     It should also be noted that in some alternative embodiments, functions/actions may appear in a different order than those shown in the drawings. For example, functions/movements involved in two diagrams that presented in succession can actually be executed concurrently, or sometimes in reverse order. 
     It should also be noted that specific details provided in the following description is to facilitate a complete understanding of the sample embodiment. However, ordinary technical personnel in the art should understand that sample embodiments can be implemented without these specific details. For example, a system can be shown in the diagram to avoid making the examples unclear with unnecessary details. While in other instances, well-known processes, structures, and techniques may not be illustrated in unnecessary detail to avoid making the sample implementation unclear. 
     Embodiment 1 
     As is seen from  FIGS.  1  to  4   , a bed cover connection device for pickup truck includes a sidebar lock system  2  which is connected to two sidebars  22 , a large rear bar lock system  3  which is connected to the rear bar  4  and multiple intermediate node blocks  36 . 
     The sidebar locking system  2  includes a sidebar lock base  21 , the sidebar lock base  21  is provided with a locking cavity  2102 . 
     There are two large rear bar lock systems  3 , the two large rear-bar lock systems  3  are set corresponding to the two side-bar lock systems  2 , the large rear-bar lock system  3  includes a rear-bar lock block  31  and a lock connection shaft  32 , the rear-bar lock block  31  is connected to the rear bar  4 , the lock connection shaft  32  passes through the rear-bar lock block  31 , one end of the lock connection shaft  32  is connected with a lock  3401  matches the lock cavity  2102 , the other end of the lock connection shaft  32  is connected with a connector  3201  for connecting the wire rope  3501 , the lock connection shaft  132  is provided with a spring  37 , one end of the spring  37  is connected to the lock  3401 , the other end of the spring  37  is connected to the rear bar lock block  31 . 
     The interior of the rear bar lock block  31  is a step hole structure, the spring  37  comes to the step hole. 
     A plurality of intermediate node blocks  36  are all connected to the rear bar  4 , the wire rope  3501  passes through the intermediate node block  36 , both ends of the wire rope  3501  are respectively connected to two connectors  3201 . 
     By setting the wire rope  3501 , users can pull the wire rope  3501  to pull the lock  3401  out of the lock cavity  2102 , so as to open the rear bar  4 ; by setting up a plurality of intermediate node blocks  36  to separate the wire rope  3501  into several segments, so as to facilitate the user to pull the wire rope  3501 . 
     Embodiment 2 
     As is seen from  FIGS.  1  to  7   , a bed cover connection device for pickup truck includes a sidebar lock system  2  which is connected to two sidebars  22 , a large rear bar lock system  3  which is connected to the rear bar  4  and multiple intermediate node blocks  36 . 
     The sidebar locking system  2  includes a sidebar lock base  21 , the sidebar lock base  21  is provided with a locking cavity  2102 . 
     There are two large rear bar lock systems  3 , the two large rear-bar lock systems  3  are set corresponding to the two side-bar lock systems  2 , the large rear-bar lock system  3  includes a rear-bar lock block  31  and a lock connection shaft  32 , the rear-bar lock block  31  is connected to the rear bar  4 , the lock connection shaft  32  passes through the rear-bar lock block  31 , one end of the lock connection shaft  32  is connected with a lock  3401  for mating with the lock cavity  2102 , the other end of the lock connection shaft  32  is connected with a connector  3201  for connecting the wire rope  3501 , the lock connection shaft  32  is provided with a spring  37 , one end of the spring  37  is connected to the lock  3401 , the other end of the spring  37  is connected to the rear bar lock block  31 . 
     The interior of the rear bar lock block  31  is a step hole structure, the spring  37  comes to the step hole. 
     A plurality of the intermediate node blocks  36  are all connected to the rear bar  4 , the wire rope  3501  passes through the intermediate node block  36 , both ends of the wire rope  3501  are respectively connected to two connectors  3201 . 
     By setting the wire rope  3501 , users can pull the wire rope  3501  to pull the lock  3401  out of the lock cavity  2102 , so as to open the rear bar  4 ; by setting up a plurality of intermediate node blocks  36  to separate the wire rope  3501  into several segments, so as to facilitate the user to pull the wire rope  3501 . 
     The sidebar lock base  21  includes a slide-in groove  2101 , the rear bar lock block  31  includes a block  3101  which is matches the slide-in groove  2101 , the block  3101  is a cylinder. 
     The slide-in groove is a “√” shape. 
     The slide-in groove  2101  is provided with a limited protrusion at the end near rear-bar lock block  31 , which is used to stop the block  3101 . 
     By setting the slide-in groove  2101  and block  3101  the block  3101  can slide into the slip-in groove  2101  and snap in with the slip-in groove  2101 . 
     When the user closes the lid to lock, the block  3101  of the rear-bar locking block  31  first falls into the slide-in groove  2101  on the first fixing block, the lock  3401  rotates at a certain angle with the cylindrical block  3101  as the lid is gradually closed, so that the lock  3401  is squeezed by the lock cavity  2102  and compressed into the inner ladder hole, ejected, and then snapped into the lock cavity  2102  to complete the closing operation of the car cover. 
     The connector  3201  is provided with an mounting hole for connecting the wire rope  3501 . 
     The bed cover connection device includes two aluminum pressed wires  33 , the two aluminum pressed wires  33  are located between the two connector  3201  which is corresponding to the two ends of the wire rope  3501  respectively, the aluminum pressed wire  33  is used to connect with the wire rope  3501 . 
     By setting the mounting holes and aluminum pressed wire  33 , the wire rope  3501  and the lock connection shaft  32  can be secured well to ensure the force strength. 
     The lock connection shaft  32  includes a threaded segment  3202  and a connection segment  3203 , the lock  3401  is connected to the threaded segment  3202  by thread, the connection segment  3203  is provided with a fixed connector  3201 . 
     The lock  3401  and the lock connection shaft  32  are fixed through threads, which not only ensures the strength of the connection of the lock  3401  but also facilitates the replacement of the lock  3401 . 
     There are two intermediate node blocks  36 , the intermediate node block  36  is provided with a cross-wire hole for passing through the wire rope  3501 . 
     By setting two intermediate node blocks, the wire rope can be separated into three segments, which is convenient for users to pull. 
     The outer upper surface of the locking cavity  2102  is oblique (the upper is referred to here as the upper side of  FIG.  2   ), the inner upper surface of the locking cavity  2102  is flat, the end of the lock  3401  is curved. 
     The outer side of the lock cavity  2102  is designed as a bevel, so that it can produce a squeeze force on the lock  3401  when the lock touches the outer wall of the lock cavity  2102 , so as to facilitate the locking of the bed cover. The inner side of the lock cavity  2102  is designed as a plane can effectively prevent the lock  3401  from sliding out. 
     When opening the bed cover, the user pulls the wire rope  3501  to pull the lock  3401  back into the ladder hole, and the user can lift the lid up to complete the opening operation of the car cover. 
     The bed cover connection device also includes a sidebar anti-tilting structure  2201  which is arranged above the sidebar  22  (above is referred to here as the upper side in actual using), the sidebar anti-tilting structure  2201  is used to prevent the sidebar  22  from tilting. 
     The sidebar anti-tilting structure  2201  is comprised of the bottom bulge point on the sidebar  22 , which can form a fulcrum with the hard contact of the sidebar  22  to prevent the sidebar  22  from tilting. 
     Detail Working Principle: 
     When the user closes the lid to lock, the block  3101  of the rear-bar locking block  31  first falls into the slide-in groove on the first fixing block, the lock: 3401  rotates at a certain angle with the cylindrical block  3101  as the lid is gradually closed, so that the lock  3401  is squeezed by the lock cavity  2102  and compressed into the inner ladder hole, ejected, and then the snapped into the lock cavity  2102  to complete the closing operation of the car cover. 
     When opening the bed cover, the user pulls the wire rope  3501  to pull the lock  3401  back into the ladder hole by the lock connection shaft  32 , and the user can lift the lid up to complete the opening operation of the car cover. 
     The above embodiment only to illustrate the technical scheme of the present invention, not to limit it. Although the present invention is described in detail by reference to the preceding embodiment, ordinary technical personnel in the art should understand that they may still modify the technical schemes recorded in the preceding embodiment, or replace some of the technical features with equivalents. The modifications or substitutions do not make the essence of the corresponding technical scheme separate from the spirit and scope of the technical scheme of each embodiment of the present invention. 
     The invention is not limited to the above-mentioned optional embodiment, anyone under the inspiration of the present invention can derive other forms of products. The above-mentioned specific embodiment shall not be understood as a limitation on the scope of protection of the present invention, the scope of protection of the present invention shall be defined in the claims, and the instructions may be used to explain the claim.