Rolling cover structure for pickup truck

Abstract

The present invention relates to a rolling shutter cover structure for a pickup truck, belonging to the technical field of vehicle-mounted accessories, comprising a slide rail assembly, a rolling shutter piece, a round tooth assembly and a winding assembly; the slide rail assembly is fixedly arranged on the pickup truck, straight teeth are fixedly arranged on both sides of the slide rail assembly, the winding assembly is arranged at one end of the slide rail assembly close to the front of the vehicle, the rolling shutter piece covers the rear of the pickup truck and is slidably connected to the slide rail assembly; one end of the rolling shutter piece is wound on the winding assembly and forms a passive winding module with the winding assembly, the round tooth assembly is arranged at one end of the rolling shutter piece away from the winding assembly, the round tooth assembly meshes with the straight teeth to form an active winding module, the active winding module pushes the rolling shutter piece to slide with the slide rail assembly, and the passive winding module passively winds and unwinds the rolling shutter piece, and the meshing of the straight teeth and the round tooth assembly makes the round tooth assembly perform linear motion along the straight teeth, and drives the rolling or unwinding of the rolling shutter piece under the thrust of the linear motion, thereby improving the opening and closing stability of the rolling shutter piece and the service life of the rolling shutter piece.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle accessories, and in particular relates to a rolling cover structure for a pickup truck. Background Art

[0002] In order to meet the multi-functional needs of pickup trucks, existing pickup trucks will install roller shutters in the rear compartment to seal the rear compartment for waterproofing and dustproofing to protect items or to prevent theft.

[0003] For example, publication number CN111688456A discloses a pickup truck rear compartment cover connecting linkage device, including a covering single piece, a connecting piece, an end cover assembly and a driving gear. The covering single piece is extruded, and the sides of each group of covering single pieces are spliced ​​together to form a covering body covering the rear compartment of the pickup truck; the end cover assembly has a plastic rack, and the driving gear meshes with the plastic rack on the end cover assembly, and the covering body is driven by the driving gear to open and close the rear compartment of the pickup truck. Its advantages are that it can achieve both lightweight, absorb assembly tolerances, improve assembly efficiency and qualified rate, and reduce noise, and achieve both waterproof and linkage meshing opening and closing, and a simple structure and connection to achieve multiple key functions of parts.

[0004] Pickup trucks are used more frequently outdoors, usually traveling on steep and rugged roads and transporting items. In addition, the loading space behind the rolling shutter is limited. If there are many items being transported, they are likely to collide with the rolling shutter. In addition, the pickup truck is in a bumpy driving state, and the rolling shutter will collide with the loaded items for a long time, which can easily cause the rolling shutter to deform or even break. In the above scheme, the plastic rack is fixed to the end cover assembly, that is, fixed to the rolling shutter. The damaged and deformed rolling shutter will affect the plastic rack, causing the meshing accuracy of the plastic rack and the gear to change, resulting in unstable meshing, which can easily make the rolling shutter difficult to open or close. The rolling shutter needs to be replaced frequently, which seriously affects the service life of the rolling shutter and increases the cost of maintenance of the rolling shutter. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, the present invention provides a rolling shutter cover structure for a pickup truck, which solves the problem that the existing rolling shutter sheet rolling structure is unstable in rolling up and requires frequent maintenance.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A rolling shutter cover structure for a pickup truck, comprising a slide rail assembly, a rolling shutter piece, a round tooth assembly and a winding assembly; the slide rail assembly is fixedly arranged on the pickup truck, and spur teeth are fixedly arranged on both sides of the slide rail assembly, and the spur teeth are located at the lower part of the slide rail assembly; the winding assembly is arranged at one end of the slide rail assembly close to the front of the vehicle and at the lower end of the slide rail assembly, and the rolling shutter piece covers the rear of the pickup truck and is slidably connected to the slide rail assembly; one end of the rolling shutter piece is wound on the winding assembly and the rolling shutter piece and the winding assembly form a passive winding module, the round tooth assembly is arranged on the end of the rolling shutter piece away from the winding assembly, and the round tooth assembly meshes with the spur teeth to form an active winding module, the active winding module pushes the rolling shutter piece and the slide rail assembly to slide, and the passive winding module passively winds and unwinds the rolling shutter piece.

[0008] Preferably, the spur teeth are in a strip-shaped structure and are made of alloy material.

[0009] Preferably, the rolling curtain piece includes a plurality of rolling curtain blocks, a plurality of connecting blocks and a side curtain frame; any adjacent rolling curtain blocks are connected via the connecting block, and the side curtain frame is used to clamp the connected rolling curtain blocks and the connecting block; the rolling curtain block is provided with an open first triangular card groove and a second triangular card groove, the first triangular card groove is located at the rear end of the rolling curtain block, and is used to clamp the connecting block at the rear end, and the second triangular card groove is located at the front end of the rolling curtain block, and is used to clamp the connecting block at the front end.

[0010] Preferably, a snap-in strip is horizontally arranged on the front side of the first triangular slot, the shape of the connecting block is the imitation of the first triangular slot and the second triangular slot, and a snap-in slot is also arranged on the top of the connecting block, and the snap-in slot is vertically provided with an abutment strip, and the abutment strip divides the snap-in slot into a first snap-in slot and a second snap-in slot, the first snap-in slot is used to snap-in with the front side of the first triangular slot, and the second snap-in slot is snap-in with the rear side of the second triangular slot, and from the bottom to the top of the rolling shutter piece, the abutment strip, the snap-in strip and the front side of the first triangular slot are sequentially abutted to form a sealing net.

[0011] Preferably, the winding assembly includes an outer shell, a rotating shaft and a connecting ring; the outer shell is fixedly arranged at the lower part of the slide rail assembly and located at the lower part of the rolling shutter piece, the outer shell is an arc structure with a hollow interior, the rotating shaft is rotatably installed inside the outer shell, and the connecting ring is coaxially connected to the rotating shaft; the connecting ring has a plurality of supporting parts in an equidistant array, one supporting part is provided with a connecting groove, and the connecting groove is connected to the rolling shutter block through a clamping block; the remaining adjacent supporting parts are arranged at intervals, the bottom of the rolling shutter block is an arc shape, the supporting part is used to support the arc shape, and the connecting block is located at the interval between adjacent supporting parts.

[0012] Preferably, the slide rail assembly includes a slide rail frame and a sliding groove; the slide rail frame is a door-shaped structure, the sliding groove is arranged on both sides of the door-shaped structure, the sliding groove is connected to the interior of the outer shell, the rolling shutter piece is slidably connected to the sliding groove, and the rolling shutter piece slides between the sliding groove and the outer shell.

[0013] Preferably, the slide rail assembly also includes tooth grooves, which are arranged on both sides of the door-shaped structure and located at the bottom of the sliding groove; along the direction from the front to the rear of the pickup truck, the tooth grooves are located on the rear side of the outer shell, and the tooth grooves are used to install the straight teeth, and the straight teeth extend from the outer shell to the end of the slide rail frame.

[0014] Preferably, the round tooth assembly includes a driving motor, two transmission shafts and two gears; along the direction from the front to the rear of the pickup truck, the driving motor is installed at the tail of the rolling shutter piece, the two transmission shafts are connected to the driving motor through bearings, and the two gears are respectively connected to the ends of the two transmission shafts away from the driving motor; any gear is engaged with the spur teeth.

[0015] Preferably, a guide block is further included, wherein the guide block is arranged between the spur teeth and the housing, and the top of the guide block is an arc structure for guiding the rolling shutter piece from the sliding groove to the inside of the housing.

[0016] The beneficial effects of the present invention are:

[0017] The meshing of the spur gear and the circular gear assembly allows the circular gear assembly to perform linear motion along the spur gear, and the rolling shutter piece is driven to be reeled or unreeled under the thrust of the linear motion; the spur gear and the circular gear assembly will not be affected by the damage and deformation of the rolling shutter piece, and can still maintain a stable meshing state, thereby improving the opening and closing stability of the rolling shutter piece and reducing the maintenance frequency of the rolling shutter piece, effectively increasing the service life of the rolling shutter piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0019] Figure 1 A schematic diagram of a partial cross-sectional structure of a rolling shutter cover provided in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the installation structure of a winding assembly provided in one embodiment of the present invention;

[0021] Figure 3 A schematic diagram of a spur gear installation structure provided in one embodiment of the present invention;

[0022] Figure 4 A schematic diagram of a rolling shutter piece installation structure provided in one embodiment of the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of a rolling shutter piece provided in one embodiment of the present invention;

[0024] Legend: 1. Slide rail assembly; 11. Slide rail frame; 12. Sliding groove; 13. Tooth groove; 2. Roller shutter piece; 21. Roller shutter block; 211. First triangular slot; 212. Second triangular slot; 22. Connecting block; 23. Side curtain frame; 31. Driving motor; 32. Transmission shaft; 33. Gear; 4. Winding assembly; 41. Housing; 42. Rotating shaft; 43. Connecting ring; 431. Support part; 432. Connecting groove; 5. Straight teeth; 61. Snap-in strip; 62. First snap-in groove; 63. Second snap-in groove; 7. Guide block. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0026] like Figure 1-Figure 5As shown, a rolling shutter cover structure for a pickup truck includes a slide rail assembly 1, a rolling shutter piece 2, a round tooth assembly and a winding assembly 4; the slide rail assembly 1 is fixedly arranged on the pickup truck, and spur teeth 5 are fixedly arranged on both sides of the slide rail assembly 1, and the spur teeth 5 are located at the lower part of the slide rail assembly 1; the winding assembly 4 is arranged at one end of the slide rail assembly 1 close to the front of the vehicle and at the lower end of the slide rail assembly 1, and the rolling shutter piece 2 covers the rear end of the pickup truck and is slidably connected with the slide rail assembly 1; one end of the rolling shutter piece 2 is rolled up on the winding assembly 4 and the rolling shutter piece 2 and the winding assembly 4 form a passive winding module, the round tooth assembly is arranged at one end of the rolling shutter piece 2 away from the winding assembly 4, and the round tooth assembly is meshed with the spur teeth 5 to form an active winding module, the active winding module pushes the rolling shutter piece 2 to slide with the slide rail assembly 1, and the passive winding module passively rolls and unwinds the rolling shutter piece 2; the rolling shutter piece 2 is fully unfolded, covering the rear part of the pickup truck. As a part of the active winding module, the round tooth assembly is fixedly connected to the end of the rolling shutter piece 2 away from the winding assembly 4, and maintains a tight meshing state with the straight teeth 5 on both sides of the slide rail assembly 1. The winding assembly 4 is located at the end of the slide rail assembly 1 close to the front of the vehicle and is in a standby state, ready to wind up or release the rolling shutter piece 2 at any time; when the rolling shutter piece 2 needs to be opened, the round tooth assembly rotates and moves along the spur teeth 5, and this movement is converted into a power to push the rolling shutter piece 2 to slide along the slide rail assembly 1. Therefore, under the push of the active winding module, the rolling shutter piece 2 slides toward the winding assembly 4 and is gradually wound up; the same is true for unwinding, both of which utilize the meshing of the spur teeth 5 and the round tooth assembly to make the round tooth assembly move linearly along the spur teeth 5, and drive the rolling shutter piece 2 to be wound up or unwound under the thrust of the linear motion; in this way, the spur teeth 5 are fixedly set on the slide rail assembly 1, and even in a bumpy environment, the spur teeth 5 and the round tooth assembly will not be affected by the damage and deformation of the rolling shutter piece 2, and can still maintain a stable meshing state, thereby improving the opening and closing stability of the rolling shutter piece 2 and reducing the maintenance frequency of the rolling shutter piece 2, effectively improving the service life of the rolling shutter piece 2.

[0027] In one embodiment, the spur teeth 5 are strip-shaped and made of alloy material. The spur teeth 5 are made of high-strength, wear-resistant materials, such as hard alloy or specially treated metal, to improve the hardness and durability of the tooth surface and reduce the wear caused by long-term meshing. During the opening and closing process of the rolling shutter 2, the round tooth assembly moves along the spur teeth 5 driven by the driving mechanism. Due to the strip-shaped structure of the spur teeth 5 and the excellent performance of the alloy material, as well as the precision processing of the round tooth assembly, the meshing relationship between the two is always stable, and the spur teeth 5 provide a strong and durable material for the round tooth assembly. The round tooth assembly provides solid support and accurate guidance, while the round tooth assembly moves smoothly along the straight teeth 5 to push or pull the rolling shutter piece 2 to open and close; the strip structure and alloy material of the straight teeth 5 enhance its rigidity and wear resistance, while the processing of the round tooth assembly ensures accurate engagement with the straight teeth 5, improves the engagement stability, and reduces failures and noise caused by poor engagement; the stable engagement relationship makes the opening and closing process of the rolling shutter piece 2 smoother, faster and more accurate, and the user can easily open and close the rolling shutter piece 2 without any effort, thereby improving the operating experience.

[0028] In one embodiment, the rolling curtain piece 2 includes a plurality of rolling curtain blocks 21, a plurality of connecting blocks 22 and a side curtain frame 23; each rolling curtain block 21 is provided with a first triangular card slot 211 and a second triangular card slot 212 of an opening at the front and rear ends, respectively. The design of these card slots allows adjacent rolling curtain blocks 21 to be connected through the connecting blocks 22. Specifically, the first triangular card slot 211 of the rear rolling curtain block 21 will be clamped to the connecting block 22 of the front rolling curtain block 21, and at the same time, the second triangular card slot 212 of the front rolling curtain block 21 will also be clamped to the connecting block 22 of the rear rolling curtain block 21. This connection method ensures the tight connection and stability between the rolling curtain blocks 21; the side curtain frame 23 is used to clamp the rolling curtain block 21 that has been connected through the connecting block 22 as a whole. The design of the side curtain frame 23 usually includes a groove or hole that matches the rolling curtain block 21 and the connecting block 22 to ensure that they can be firmly combined together. The side curtain frame 23 not only enhances the overall structural strength of the rolling curtain piece 2, but also provides additional protection to prevent the rolling curtain block 21 and the connecting block 22 from loosening or falling off during use; by dividing the rolling curtain piece 2 into a plurality of rolling curtain blocks 21 and connecting blocks 22, the present embodiment allows the rolling curtain piece 2 to have higher flexibility when unfolding and rolling up; since the rolling curtain piece 2 is divided into a plurality of independent rolling curtain blocks 21 and connecting blocks 22, when a part fails or is damaged, the user can more easily perform maintenance and replacement. This design reduces maintenance costs and increases the service life of the rolling curtain piece 2.

[0029] In one embodiment, a snap-in strip 61 is horizontally arranged on the front side of the first triangular slot 211, the shape of the connecting block 22 is the imitation of the first triangular slot 211 and the second triangular slot 212, and a snap-in slot is also arranged on the top of the connecting block 22, and an abutment strip is vertically arranged on the snap-in slot, which divides the snap-in slot into a first snap-in slot 62 and a second snap-in slot 63, the first snap-in slot 62 is used to snap-in with the front side of the first triangular slot 211, and the second snap-in slot 63 is snap-in with the rear side of the second triangular slot 212, and from the bottom to the top of the rolling shutter piece 2, the abutment strip, the snap-in strip 61 and the front side of the first triangular slot 211 are connected. The side parts are abutted in sequence to form a sealing net; the clamping process: when adjacent rolling curtain blocks 21 are connected through the connecting block 22, the first clamping groove 62 of the connecting block 22 will accurately clamp into the front side of the first triangular clamping groove 211 of the first rolling curtain block 21, and at the same time, the second clamping groove 63 will also be tightly clamped with the rear side of the second triangular clamping groove 212 of the second rolling curtain block 21, ensuring that the connection between the rolling curtain blocks 21 is both firm and tight. The rolling curtain piece 2 of this embodiment can effectively reduce the wear and corrosion caused by the intrusion of external impurities, which not only improves the durability of the rolling curtain piece 2, but also extends its service life.

[0030] In one embodiment, the winding assembly 4 includes a shell 41, a rotating shaft 42 and a connecting ring 43; the shell 41 is fixedly arranged at the lower part of the slide rail assembly 1 and is located at the lower part of the rolling shutter piece 2, the shell 41 is a circular arc structure with a hollow interior, the rotating shaft 42 is rotatably installed inside the shell 41, and the connecting ring 43 is coaxially connected to the rotating shaft 42; the connecting ring 43 has a plurality of supporting parts 431 in an equidistant array, one supporting part 431 is provided with a connecting groove 432, and the connecting groove 432 is connected to the rolling shutter block 21 through a clamping block; the other adjacent supporting parts 431 are arranged at intervals, the bottom of the rolling shutter block 21 is in the shape of a circular arc, the supporting part 431 is used to support the circular arc, and the connecting block 22 is located in the interval between adjacent support parts 431, the housing 41 is fixedly arranged at the lower part of the slide rail assembly 1 and at the lower part of the rolling shutter piece 2, and the hollow arc structure inside it provides sufficient rotation space for the rotating shaft 42 to roll up the rolling shutter piece 2, and the rotating shaft 42 is rotatably installed inside the housing 41 and can rotate freely. When the rotating shaft 42 rotates, it drives the coaxial connecting ring 43 to rotate together; the bottom of the rolling shutter block 21 is designed to be an arc shape, which matches the arc structure of the housing 41, ensuring that the rolling shutter can be closely attached to the inner wall of the housing 41 during the rolling process, reducing friction and wear, while maintaining the flatness and aesthetics of the rolling shutter. The main function of the support part 431 is to support the arc-shaped rolling shutter block 21 to prevent it from deforming or falling off during the winding process.

[0031] In one embodiment, the slide rail assembly 1 includes a slide rail frame 11 and a sliding groove 12; the slide rail frame 11 is a door-shaped structure, the sliding grooves 12 are arranged on both sides of the door-shaped structure, the sliding grooves 12 are connected to the inside of the shell 41, the rolling shutter piece 2 is slidably connected to the sliding grooves 12, and the rolling shutter piece 2 slides between the sliding grooves 12 and the shell 41; the rolling shutter piece 2 can move horizontally along the track of the sliding grooves 12 without deviating from the predetermined path during the movement, and the sliding connection design ensures the stability and reliability of the rolling shutter piece 2 during the unfolding and winding process.

[0032] In one embodiment, the slide rail assembly 1 also includes a tooth groove 13, which is arranged on both sides of the door-shaped structure and at the bottom of the sliding groove 12; along the direction from the front to the rear of the pickup truck, the tooth groove 13 is located on the rear side of the outer shell 41, and the tooth groove 13 is used to install the spur teeth 5, which extend from the outer shell 41 to the end of the slide rail frame 11, that is, the spur teeth 5 are fixedly installed in the installation groove, and relative movement is generated between the spur teeth 5 and the roller shutter when the roller shutter is rolled up or unrolled. Compared with the existing common method of setting the spur teeth 5 on the roller shutter piece 2, the stability of this embodiment is better.

[0033] In one embodiment, the round gear assembly includes a driving motor 31, two transmission shafts 32 and two gears 33; along the direction from the front to the rear of the pickup truck, the driving motor 31 is installed at the rear of the rolling shutter piece 2, the two transmission shafts 32 are connected to the driving motor 31 through bearings, and the two gears 33 are respectively connected to the ends of the two transmission shafts 32 away from the driving motor 31; any gear 33 is meshed with the spur teeth 5; the two gears 33 are respectively connected to the ends of the two transmission shafts 32 away from the driving motor 31, and they drive the movement of the rolling shutter piece 2 by meshing with the spur teeth 5. When the driving motor 31 is started, the transmission shaft 32 will drive the gear 33 to rotate, and the spur teeth 5 are fixed to the slide rail frame 11 and do not move. The gear 33 meshes with the spur teeth 5 and rolls along the trajectory of the spur teeth 5, thereby driving the rolling shutter piece 2 to move along the slide rail assembly 1; the design of the round gear assembly is relatively simple and modular, so the installation and maintenance process is relatively convenient, and users can easily disassemble and replace related components as needed, reducing the difficulty and cost of maintenance. At the same time, since the meshing relationship between the gear 33 and the spur tooth 5 is relatively fixed, the risk of failure due to looseness or wear is also reduced; in addition, a solar panel (not shown in the figure) is installed in the unobstructed area above the roller shutter cover of the pickup truck. The solar panel is connected to the drive motor 31 through wires, which can convert the collected solar energy into electrical energy and directly power the drive motor 31. This not only reduces dependence on traditional energy, but also greatly improves the environmental performance and endurance of the pickup truck, especially in outdoor operations or long-distance travel, and can bring users a more convenient and economical use experience.

[0034] In one embodiment, a guide block 7 is further included. The guide block 7 is disposed between the spur gear 5 and the housing 41. The top of the guide block 7 is an arc structure, which is used to guide the rolling shutter piece 2 from the sliding groove 12 to the inside of the housing 41. The existence of the guide block 7 not only ensures the stability and accuracy of the rolling shutter piece 2 during the retracting process, but also reduces the friction and wear caused by path deviation. At the same time, its arc structure design allows the rolling shutter piece 2 to enter the housing 41 more smoothly, avoiding the impact and noise caused by sudden changes in direction.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A rolling cover structure for a pickup truck, characterized in that: It comprises a slide rail assembly, a rolling shutter piece, a round tooth assembly and a reeling assembly; the slide rail assembly is fixedly arranged on a pickup truck, spur teeth are fixedly arranged on both sides of the slide rail assembly, the spur teeth are located at the lower part of the slide rail assembly, the reeling assembly is arranged at one end of the slide rail assembly close to the front of the vehicle and at the lower end of the slide rail assembly, the rolling shutter piece covers the rear of the pickup truck and is slidably connected to the slide rail assembly; One end of the rolling shutter piece is rolled up on the rolling assembly and the rolling shutter piece and the rolling assembly form a passive rolling module, the spherical tooth assembly is arranged on the end of the rolling shutter piece away from the rolling assembly, the spherical tooth assembly is meshed with the spur teeth to form an active rolling module, the active rolling module pushes the rolling shutter piece and the slide rail assembly to slide, and the passive rolling module passively rolls and unrolls the rolling shutter piece; the spur teeth are strip structures and are made of alloy material.

2. A rolling shutter cover structure for a pickup truck according to claim 1, characterized in that: The rolling curtain piece includes a plurality of rolling curtain blocks, a plurality of connecting blocks and a side curtain frame; any adjacent rolling curtain blocks are connected by the connecting block, and the side curtain frame is used to clamp the connected rolling curtain blocks and the connecting block; the rolling curtain block is provided with an open first triangular card groove and a second triangular card groove, the first triangular card groove is located at the rear end of the rolling curtain block, and is used to clamp the connecting block at the rear end, and the second triangular card groove is located at the front end of the rolling curtain block, and is used to clamp the connecting block at the front end.

3. The rolling cover structure for a pickup truck according to claim 2, characterized in that: A snap-in strip is horizontally arranged on the front side of the first triangular slot, the shape of the connecting block is the imitation of the first triangular slot and the second triangular slot, and a snap-in slot is also arranged on the top of the connecting block, and a contact strip is vertically arranged on the snap-in slot, and the contact strip divides the snap-in slot into a first snap-in slot and a second snap-in slot, the first snap-in slot is used to snap-in with the front side of the first triangular slot, and the second snap-in slot is snap-in with the rear side of the second triangular slot, and from the bottom to the top of the rolling shutter piece, the contact strip, the snap-in strip and the front side of the first triangular slot are sequentially abutted to form a sealing net.

4. The rolling cover structure for a pickup truck according to claim 2, characterized in that: The winding assembly includes an outer shell, a rotating shaft and a connecting ring; the outer shell is fixedly arranged at the lower part of the slide rail assembly and located at the lower part of the rolling shutter piece, the outer shell is an arc structure with a hollow interior, the rotating shaft is rotatably installed inside the outer shell, and the connecting ring is coaxially connected to the rotating shaft; the connecting ring has a plurality of supporting parts in an equidistant array, one supporting part is provided with a connecting groove, and the connecting groove is connected to the rolling shutter block through a clamping block; the remaining adjacent supporting parts are arranged at intervals, the bottom of the rolling shutter block is an arc shape, the supporting part is used to support the arc shape, and the connecting block is located at the interval between adjacent supporting parts.

5. The rolling cover structure for a pickup truck according to claim 4, characterized in that: The slide rail assembly includes a slide rail frame and a sliding groove; the slide rail frame is a door-shaped structure, the sliding grooves are arranged on both sides of the door-shaped structure, the sliding grooves are connected to the inside of the shell, the rolling shutter piece is slidably connected to the sliding groove, and the rolling shutter piece slides between the sliding groove and the shell.

6. The rolling cover structure for a pickup truck according to claim 5, characterized in that: The slide rail assembly also includes tooth grooves, which are arranged on both sides of the door-shaped structure and located at the bottom of the sliding groove; along the direction from the front to the rear of the pickup truck, the tooth grooves are located on the rear side of the outer shell, and the tooth grooves are used to install the straight teeth, which extend from the outer shell to the end of the slide rail frame.

7. The rolling cover structure for a pickup truck according to claim 1, characterized in that: The round tooth assembly includes a driving motor, two transmission shafts and two gears; along the direction from the front to the rear of the pickup truck, the driving motor is installed at the tail of the rolling shutter piece, the two transmission shafts are connected to the driving motor through bearings, and the two gears are respectively connected to the ends of the two transmission shafts away from the driving motor; any gear is engaged with the spur teeth.

8. The rolling cover structure for a pickup truck according to claim 5, characterized in that: It also includes a guide block, which is arranged between the spur teeth and the shell. The top of the guide block is an arc structure, which is used to guide the rolling shutter piece from the sliding groove to the inside of the shell.

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