Backrest protective surface convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of automobile parts, and discloses a backrest protecting surface convenient to disassemble and assemble, which comprises a back protecting plate, a mounting mechanism is arranged at the top of the back protecting plate, a rotating component is arranged at the bottom of the back protecting plate, a seat cushion is arranged on the front side of the bottom of the back protecting plate, and the rotating component is used for adjusting the angle between the back protecting plate and the seat cushion. The mounting mechanism comprises two first binding bands, the front ends of the two first binding bands are fixedly connected to the left side and the right side of the top of the back protection plate correspondingly, the rear ends of the two first binding bands are fixedly connected with mounting plates correspondingly, and mounting grooves are formed in the left side and the right side of the bottom of each mounting plate correspondingly. According to the utility model, the mounting blocks are inserted into the mounting grooves, the clamping blocks slide into the clamping grooves for preliminary fixation, the limiting blocks and the limiting grooves are stably clamped, then the fixing bolts are tightened for reinforcement, and reverse operation is carried out during disassembly, so that the backrest protective surface is quickly disassembled and assembled, daily assembly, disassembly and maintenance are facilitated, and the use convenience is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a backrest cover that is easy to disassemble and assemble. Background Technology

[0002] As an important part of the car interior, the car seat back protector is mainly installed on the outside of the car seat back. It plays a role in protecting the internal structure of the seat, improving its aesthetics, and optimizing the driving and riding experience. It can effectively resist the damage caused by scratches and wear during daily use. Through the surface texture design and material selection, it can match the style of the car interior and create a comfortable and personalized driving and riding space.

[0003] The easy-to-disassemble backrest cover is based on the traditional backrest cover and uses an innovative structural design to enable quick disassembly and installation of the backrest cover. This meets the user's needs for convenience when cleaning, replacing or repairing the backrest cover. It aims to break the limitations of the fixed installation of the traditional backrest cover, making the maintenance of the backrest cover more flexible and efficient, and reducing maintenance costs and time costs.

[0004] However, existing easy-to-remove backrest covers use screws for installation and removal. This method avoids the drawback of traditional fully fixed backrest covers being difficult to remove to some extent, and allows for quick replacement and cleaning of the covers. Although screw fixing provides a secure connection, the installation and removal process requires specialized tools, is cumbersome, and repeated tightening of the screws can cause the threads to strip, reducing the reliability of the connection and making it difficult to truly achieve the goal of easy installation and removal. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a backrest cover that is easy to disassemble and assemble, aiming to improve the problem that although the screw fixing method in the prior art is a stable connection, the disassembly and assembly process requires professional tools and is cumbersome.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a backrest cover that is easy to assemble and disassemble, comprising a backrest panel, a mounting mechanism provided at the top of the backrest panel, a rotating assembly provided at the bottom of the backrest panel, and a seat cushion provided at the front bottom of the backrest panel. The rotating assembly is used to adjust the angle between the backrest panel and the seat cushion. The mounting mechanism includes two straps, the front ends of which are respectively fixedly connected to the left and right sides of the top of the backrest panel, and the rear ends of each strap are fixedly connected to a mounting plate. Mounting grooves are provided on the left and right sides of the bottom of the mounting plate, and the top of each mounting groove... Each part is connected to a sliding groove. The left and right sides of the back panel are fixedly connected to straps two. The rear ends of the two straps two are fixedly connected to mounting blocks. The two mounting blocks are slidably connected to the interior of the mounting grooves. The top of the two mounting blocks is provided with a slot. The interior of the two sliding grooves is slidably connected to a locking block. The two locking blocks are slidably connected to the interior of the corresponding slots. The rear side of each sliding groove is connected to a moving groove. The rear top of the two locking blocks is fixedly connected to a moving block. The rear side of the two moving blocks is provided with a fixing component. The outer wall of the two moving blocks is provided with a limit component.

[0007] As a further description of the above technical solution:

[0008] The rotating assembly includes a rotating rod, with its two ends rotatably connected to the bottom left and right sides of the backrest, respectively. A rotating block is fixedly connected to the outer wall of the rotating rod, and the front side of the rotating block is fixedly connected to the rear side of the seat cushion. A groove is provided on the bottom right side of the backrest, and the right end of the rotating rod passes through the left side of the groove. A rotating shaft is rotatably connected to the bottom right side of the backrest, and the left end of the rotating shaft passes through the right side of the groove. Gears are fixedly connected to both the right end of the rotating rod and the left end of the rotating shaft, and the two gears mesh with each other. An adjustment assembly is provided on the right side of the rotating shaft.

[0009] As a further description of the above technical solution:

[0010] The fixing component includes two fixing blocks. The front sides of the two fixing blocks are respectively fixedly connected to the rear ends of the corresponding moving blocks. Fixing holes are opened at the left and right ends of the rear sides of the two mounting plates. Fixing bolts are rotatably connected to the adjacent rear ends of the two fixing blocks.

[0011] As a further description of the above technical solution:

[0012] The limiting component includes multiple limiting blocks, one side of each limiting block is fixedly connected to the left and right sides of the corresponding moving block, and limiting grooves are formed on the left and right sides of the interior of the two moving grooves.

[0013] As a further description of the above technical solution:

[0014] The adjustment assembly includes a disc, the left side of which is fixedly connected to the right end of the rotating shaft. Multiple adjustment holes are provided around the right side of the disc. A limit hole is provided at the bottom right side of the back panel, and a limit rod is slidably connected to the top right side of the disc.

[0015] As a further description of the above technical solution:

[0016] The two movable blocks are respectively slidably connected to the interior of the corresponding sliding groove, and the size of the movable blocks and the sliding grooves are matched.

[0017] As a further description of the above technical solution:

[0018] The left end of the limiting rod passes through the corresponding adjustment hole, and the left end of the limiting rod is slidably connected to the inside of the limiting hole.

[0019] As a further description of the above technical solution:

[0020] The front ends of both fixing bolts pass through the fixing block and are rotatably connected to the interior of the corresponding fixing holes. The front side of the fixing block is slidably connected to the rear side of the mounting plate.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by inserting the mounting block into the mounting groove, the locking block slides into the locking groove for initial fixation, and then the limiting block and the limiting groove are stably engaged. Finally, the fixing bolts are tightened for reinforcement. Disassembly is performed by reversing the operation, which realizes quick disassembly and assembly of the backrest cover. The structure is stable and convenient for daily installation, disassembly and maintenance, effectively improving the convenience of use.

[0023] 2. In this utility model, by pulling out the limiting rod to release the limiting of the disc, rotating the disc drives the rotating shaft, which in turn drives the rotating rod to rotate via gear transmission, thereby driving the rotating block to adjust the angle between the seat cushion and the backrest. Then, the limiting rod is inserted to fix it, thus realizing flexible adjustment and stable locking of the backrest angle, meeting different usage needs, and improving comfort and support. Attached Figure Description

[0024] Figure 1 A perspective view of a backrest cover that is easy to assemble and disassemble according to this utility model;

[0025] Figure 2 This is a front view of a backrest cover that is easy to assemble and disassemble, as proposed in this utility model.

[0026] Figure 3 A structurally exploded view of a backrest cover that is easy to disassemble and assemble, as proposed in this utility model;

[0027] Figure 4 A cross-sectional view of the structure of a backrest cover that is easy to disassemble and assemble, as proposed in this utility model;

[0028] Figure 5 for Figure 4 Enlarged view of point A in the image.

[0029] Legend:

[0030] 1. Backrest; 2. Mounting Mechanism; 201. Strap 1; 202. Mounting Plate; 203. Mounting Groove; 204. Sliding Groove; 205. Strap 2; 206. Mounting Block; 207. Slot; 208. Slot Block; 209. Moving Groove; 210. Moving Block; 211. Fixing Component; 2111. Fixing Block; 2112. Fixing Hole; 2113. Fixing Bolt; 212. Limiting Component; 2121. Limiting Block; 2122. Limiting Groove; 3. Rotating Component; 301. Rotating Rod; 302. Rotating Block; 303. Groove; 304. Rotating Shaft; 305. Gear; 306. Adjusting Component; 3061. Disc; 3062. Adjusting Hole; 3063. Limiting Rod; 3064. Limiting Hole; 4. Seat Cushion. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a backrest cover that is easy to assemble and disassemble. The backrest cover 1 serves as the main structure, providing a supporting base for the entire backrest cover and bearing the pressure of the user's back. The top of the backrest cover 1 is provided with an installation mechanism 2, which facilitates the installation and replacement of the backrest cover. The front ends of the two straps 201 are respectively fixedly connected to the top left and right sides of the backrest cover 1, serving to connect the backrest cover 1 with the installation plate 202. The rear ends of the two straps 201 are fixedly connected to the installation plate 202. The bottom left and right sides of the installation plate 202 are provided with installation grooves 203 to accommodate the installation block 206, realizing the initial positioning and sliding connection between the backrest cover 1 and the installation plate 202.

[0033] Both mounting slots 203 have sliding grooves 204 at their tops, providing sliding space for the locking blocks 208 and assisting in the locking and fixing of the back panel 1 and the mounting plate 202. Straps 205 are fixedly connected to the left and right sides of the back panel 1, cooperating with the mounting plate 202 to achieve connection and enhance the stability of the connection between the back panel 1 and the mounting plate 202. Mounting blocks 206 are fixedly connected to the rear ends of both straps 205, slidingly connecting with the mounting slots 203 to achieve initial installation of the back panel 1 and the mounting plate 202. The two mounting blocks 206 are slidably connected to the interior of the mounting slots 203 for easy installation. For installation and disassembly operations, the top of each of the two mounting blocks 206 is provided with a slot 207, which cooperates with the slot 208 to achieve locking and fixation, preventing the back panel 1 from separating from the mounting plate 202. The inside of each of the two sliding grooves 204 is slidably connected with a slot 208. Inserting the slot 207 achieves the initial fixation of the back panel 1 and the mounting plate 202, quickly connecting the back panel 1 and the mounting plate 202 together. The two slots 208 are slidably connected to the inside of the corresponding slots 207, which can ensure the accuracy of the connection between the back panel 1 and the mounting plate 202. The rear side of each sliding groove 204 is connected to a moving groove 209.

[0034] Each of the two locking blocks 208 has a movable block 210 fixedly connected to its rear top, which facilitates the sliding of the locking block 208 and enables the locking block 208 to engage and disengage from the slot 207. Each of the two movable blocks 210 has a fixing component 211 on its rear side to further fix the movable block 210 and enhance the firmness of the connection between the back panel 1 and the mounting plate 202. Each of the two movable blocks 210 has a limit component 212 on its outer wall to ensure the stable engagement of the locking block 208 and the slot 207. The fixing component 211 includes two fixing blocks 2111, which connect the movable block 210 and the mounting plate 202 and can transmit fixing force. The front sides of the two fixing blocks 2111 are fixedly connected to the rear ends of the corresponding movable blocks 210, which serves as a connection.

[0035] Fixing holes 2112 are provided on the left and right rear ends of the two mounting plates 202, which cooperate with fixing bolts 2113 to achieve fixation, providing an installation position for fixing bolts 2113. Fixing bolts 2113 are rotatably connected to adjacent rear ends of the two fixing blocks 2111. After tightening, the moving block 210 is firmly fixed to the mounting plate 202, which can prevent the back cover plate 1 from separating from the mounting plate 202. The limiting component 212 includes multiple limiting blocks 2121, which cooperate with limiting grooves 2122 to limit the displacement of the moving block 210, which can ensure the stability of the position of the locking block 208. One side of the multiple limiting blocks 2121 is fixedly connected to the left and right sides of the corresponding moving block 210, which is used to cooperate with the limiting grooves 2122 to limit the movement of the moving block 210. Limiting grooves 2122 are provided on the left and right sides of the interior of the two moving grooves 209, which cooperate with the limiting blocks 2121 to limit the displacement of the moving block 210, which can ensure the reliability of the connection of the mounting mechanism 2.

[0036] Specifically, the installation mechanism 2 enables convenient assembly and disassembly of the backrest cover. Two straps 201 are connected to the mounting plate 202, facilitating the connection of the backrest cover to the external structure. The straps 205 on the left and right sides of the backrest cover 1 and the mounting blocks 206 at their ends can slide into the mounting grooves 203 at the bottom of the mounting plate 202. When the mounting block 206 is inserted into the mounting groove 203, the locking block 208 in the sliding groove 204 slides into the locking groove 207 at the top of the mounting block 206, achieving initial fixation. The rear of the moving block 210 is then fixed. In component 211, the fixing bolts 2113 on the fixing block 2111 pass through the fixing holes 2112 on the mounting plate 202 and are tightened to further stabilize the connection. The limiting component 212 on the outer wall of the moving block 210, through the cooperation of the limiting block 2121 and the limiting groove 2122 in the moving groove 209, restricts the displacement of the moving block 210 and ensures that the locking block 208 and the locking groove 207 are stably engaged. The rotating component 3 is used to adjust the angle between the back panel 1 and the seat cushion 4 to achieve angle fixation, facilitate disassembly and assembly, and meet diverse usage needs.

[0037] Reference Figure 4 and Figure 5 The rotating assembly 3 includes a rotating rod 301, which serves as the core component for achieving relative rotation between the backrest 1 and the seat cushion 4. It provides rotational support and power transmission. Both ends of the rotating rod 301 are rotatably connected to the left and right sides of the bottom of the backrest 1, providing rotational fulcrums and ensuring stable rotation. A rotating block 302 is fixedly connected to the outer wall of the rotating rod 301, connecting the rotating rod 301 and the seat cushion 4 and transmitting the rotation of the rotating rod 301 to the seat cushion 4. The front side of the rotating block 302 is fixedly connected to the rear side of the seat cushion 4, connecting the seat cushion 4 and the rotating rod 301. A groove 303 is provided on the right side of the bottom of the backrest 1, providing installation space for the right end of the rotating rod 301 and the left end of the rotating shaft 304. The right end of the rotating rod 301 passes through the groove. On the left side of 303, the rotating rod 301 and the rotating shaft 304 can be connected for transmission, which can transmit rotational power. The bottom right side of the back cover plate 1 is rotatably connected to the rotating shaft 304, which serves as an intermediate component for power transmission, transmitting the power of the adjusting component 306 to the rotating rod 301. The left end of the rotating shaft 304 passes through the right side of the groove 303, achieving docking with the rotating rod 301 and ensuring the meshing transmission between the gears 305. The right end of the rotating rod 301 and the left end of the rotating shaft 304 are both fixedly connected to the gears 305. Power is transmitted through the meshing of the gears 305, transmitting the rotation of the rotating shaft 304 to the rotating rod 301. The meshing connection of the two gears 305 ensures the stability and accuracy of power transmission, allowing the rotating rod 301 and the rotating shaft 304 to rotate synchronously.

[0038] An adjustment component 306 is provided on the right side of the rotating shaft 304 for adjusting the angle between the backrest 1 and the seat cushion 4, thereby adjusting the backrest angle. The adjustment component 306 includes a disc 3061, which serves as the operating component for angle adjustment. Rotating the disc 3061 controls the rotation of the rotating shaft 304. The left side of the disc 3061 is fixedly connected to the right end of the rotating shaft 304. Connecting the disc 3061 and the rotating shaft 304 together causes the disc 3061 to drive the rotating shaft 304 to rotate. The right side of the disc 3061 is open around its perimeter. Multiple adjustment holes 3062 are provided, which cooperate with the limiting rod 3063 to fix the angle and fix different backrest angles. A limiting hole 3064 is opened at the bottom right side of the back panel 1, which cooperates with the adjustment hole 3062 and the limiting rod 3063 to fix the disc 3061, ensuring that the adjusted angle will not change arbitrarily. The limiting rod 3063 is slidably connected to the top right side of the disc 3061. The disc 3061 is fixed by inserting the adjustment hole 3062 and the limiting hole 3064, thus locking the angle between the back panel 1 and the seat cushion 4.

[0039] Specifically, the components of the rotating assembly 3 work together to adjust and securely fix the angle between the backrest 1 and the seat cushion 4. The two ends of the rotating rod 301 are rotatably connected to the left and right sides of the bottom of the backrest 1. The front side of the rotating block 302 fixed to its outer wall is connected to the rear side of the seat cushion 4, forming the basic rotating structure for angle adjustment. When the rotating rod 301 rotates, it can drive the seat cushion 4 to rotate relative to the backrest 1, thereby changing their angle. The groove 303 on the right side of the bottom of the backrest 1 provides installation space for the right end of the rotating rod 301 and the left end of the rotating shaft 304. The rotating shaft 304 is rotatably connected to the right side of the bottom of the backrest 1. The gear 305 on the right end of the rotating rod 301 and the left end of the rotating shaft 304 meshes, allowing the rotation of the rotating shaft 304 to be transmitted to the rotating rod 301 via the gear 305, thus achieving power transmission. The left side of the disc 3061 in 06 is fixed to the right end of the rotating shaft 304. The adjustment holes 3062 around its right side cooperate with the limiting holes 3064 at the bottom right side of the back panel 1. When the limiting rod 3063 is pulled to disengage it from the adjustment holes 3062 and the limiting holes 3064, the disc 3061 can rotate freely, driving the rotating shaft 304 to rotate. Then, through the gear 305, the rotating rod 301 is rotated to complete the angle adjustment. After adjusting to the appropriate angle, the limiting rod 3063 is inserted into the corresponding adjustment holes 3062 and the limiting holes 3064 to fix the position of the disc 3061. The rotating rod 301 is fixed through the gear 305, thereby stabilizing the angle between the back panel 1 and the seat cushion 4, ensuring that the backrest surface remains stable during use and meeting the different angle needs of the user.

[0040] Reference Figure 3 and Figure 5Two movable blocks 210 are slidably connected to the interior of the corresponding sliding grooves 204, enabling the movable blocks 210 to drive the locking block 208 to move within the sliding grooves 204, thus realizing the engagement and disengagement of the locking block 208 and the locking groove 207. The size of the movable blocks 210 and the sliding grooves 204 are matched to ensure that the movable blocks 210 slide smoothly and are accurately positioned within the sliding grooves 204, preventing the movable blocks 210 from shifting or shaking during sliding. The left end of the limiting rod 3063 passes through the corresponding adjusting hole 3062 and is inserted into the adjusting hole 3062 and the limiting hole 3064 to form a fixed structure, restricting the rotation of the disc 3061 and thus fixing the angle between the back panel 1 and the seat cushion 4. The left end of the limiting rod 3063 and the limiting hole 3064 are connected to the corresponding adjusting hole 3062 and the limiting hole 3064 to form a fixed structure, restricting the rotation of the disc 3061 and thus fixing the angle between the back panel 1 and the seat cushion 4. The internal sliding connection of the positioning hole 3064 provides a sliding track for the limit rod 3063, facilitating insertion and removal operations and enabling quick locking and unlocking during angle adjustment. The front ends of the two fixing bolts 2113 pass through the fixing block 2111 and are rotatably connected to the interior of the corresponding fixing hole 2112. By tightening the fixing bolts 2113, the moving block 210 is firmly fixed to the mounting plate 202, further enhancing the stability of the connection between the back cover plate 1 and the mounting plate 202. The front side of the fixing block 2111 is slidably connected to the rear side of the mounting plate 202, which facilitates position adjustment before tightening the fixing bolts 2113 and provides auxiliary support after fixing, making the fixing effect of the fixing component 211 more reliable.

[0041] Specifically, the movable block 210 and the sliding groove 204 are sized and slidably connected, allowing the locking block 208 to slide smoothly within the sliding groove 204. This facilitates the alignment and engagement of the locking block 208 with the locking groove 207 on the top of the mounting block 206, completing the connection between the back panel 1 and the mounting plate 202. The limiting rod 3063 passes through the adjusting hole 3062 and is slidably connected to the limiting hole 3064. When inserted, it can restrict the rotation of the disc 3061, thereby fixing the rotating shaft 304 and the rotating rod 301, stabilizing the angle between the back panel 1 and the cushion 4. The fixing bolt 2113 passes through the fixing block 2111 and is rotatably connected to the fixing hole 2112. The front side of the fixing block 2111 slides in contact with the rear side of the mounting plate 202. By tightening or loosening the fixing bolt 2113, the movable block 210 and the mounting plate 202 are fixed and separated, enhancing the firmness of the connection between the back panel 1 and the mounting plate 202.

[0042] Working principle: When using this easy-to-install and remove backrest cover, first place the strap 205 on the backrest panel 1 on top of the seat, align the mounting block 206 at the end with the mounting groove 203 at the bottom of the mounting plate 202, and slide the mounting block 206 into the mounting groove 203. When the mounting block 206 is fully inserted into the mounting groove 203, the locking block 208 slides in the sliding groove 204 until the locking block 208 aligns with the locking groove 207 at the top of the mounting block 206 and slides into the locking groove 207, thus fixing it. At this time, the moving block 210 is in the moving groove 209. The limiting blocks 2121 on the left and right sides of the moving block 210 cooperate with the limiting grooves 2122 on the left and right sides of the moving groove 209 to limit the displacement of the moving block 210 in the direction perpendicular to the sliding direction, ensuring that the locking block is properly secured. After the block 208 is stably engaged with the slot 207, the fixing bolt 2113 rotatably connected to the rear side of the fixing block 2111 is rotated so that it passes through the fixing hole 2112 on the rear side of the mounting plate 202. By tightening the fixing bolt 2113, the fixing block 2111 and the mounting plate 202 are fixed, thereby further stabilizing the block 208 and preventing it from coming out of the slot 207, thus completing the connection between the back cover plate 1 and the mounting plate 202. When disassembling, the fixing bolt 2113 is rotated in the opposite direction to unscrew it from the fixing hole 2112. Then, the moving block 210 is pulled so that the block 208 slides out of the slot 207 and returns to the sliding groove 204. Finally, the mounting block 206 is pulled out from the mounting groove 203, thus separating the back cover plate 1 from the mounting plate 202.

[0043] Furthermore, when it is necessary to adjust the angle between the backrest 1 and the seat cushion 4, first pull the limiting rod 3063 out of the adjusting hole 3062 on the top right side of the disc 3061 to release the limiting of the disc 3061. Since the left side of the disc 3061 is fixedly connected to the right end of the rotating shaft 304, rotating the disc 3061 at this time will drive the rotating shaft 304 to rotate. The left end of the rotating shaft 304 is meshed with the gear 305 on the right end of the rotating rod 301. When the rotating shaft 304 rotates, it drives the rotating rod 301 to rotate through the transmission of the gear 305. The two ends of the rotating rod 301 are rotatably connected to the left and right sides of the bottom of the backrest 1. The rotating block 302 fixedly connected to its outer wall is in front of it. The side is fixedly connected to the back of the seat cushion 4, so when the rotating rod 301 rotates, it will drive the rotating block 302 to rotate, thereby realizing the angle adjustment of the seat cushion 4 relative to the back panel 1. When the back panel 1 and the seat cushion 4 are adjusted to a suitable angle, the limiting rod 3063 is inserted into the adjustment hole 3062 at the corresponding position on the right side of the disc 3061, and at the same time, the limiting rod 3063 passes through the limiting hole 3064 at the bottom right side of the back panel 1, thereby fixing the position of the disc 3061. Through the gear 305 transmission, the rotating rod 301 is also fixed, thereby fixing the angle between the back panel 1 and the seat cushion 4, ensuring that the angle of the backrest surface is stable during use.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A backrest cover that is easy to assemble and disassemble, comprising a back panel (1), characterized in that: The back panel (1) is provided with an installation mechanism (2) at the top, a rotating component (3) is provided at the bottom of the back panel (1), and a seat cushion (4) is provided at the bottom front side of the back panel (1). The rotating component (3) is used to adjust the angle between the back panel (1) and the seat cushion (4). The installation mechanism (2) includes two straps (201). The front ends of the two straps (201) are fixedly connected to the top left and right sides of the back panel (1). The rear ends of the two straps (201) are fixedly connected to mounting plates (202). The bottom left and right sides of the mounting plates (202) are provided with mounting grooves (203). The top of the two mounting grooves (203) are connected to sliding grooves (204). The left and right sides of the back panel (1) are fixedly connected to straps (205). The rear ends of the two straps (205) are fixedly connected to mounting blocks (206). The two mounting blocks (206) are respectively connected to... The mounting slot (203) is internally slidably connected. The top of each of the two mounting blocks (206) is provided with a slot (207). The interior of each of the two sliding slots (204) is slidably connected with a block (208). The two blocks (208) are respectively slidably connected to the interior of the corresponding slot (207). The rear side of each sliding slot (204) is connected to a moving slot (209). The top of the rear side of each of the two blocks (208) is fixedly connected with a moving block (210). The rear side of each of the two moving blocks (210) is provided with a fixing component (211). The outer wall of each of the two moving blocks (210) is provided with a limit component (212).

2. The easily detachable backrest cover according to claim 1, characterized in that: The rotating assembly (3) includes a rotating rod (301), the two ends of which are rotatably connected to the bottom left and right sides of the back panel (1), respectively. A rotating block (302) is fixedly connected to the outer wall of the rotating rod (301). The front side of the rotating block (302) is fixedly connected to the rear side of the seat cushion (4). A groove (303) is provided on the bottom right side of the back panel (1). The right end of the rotating rod (301) passes through the left side of the groove (303). A rotating shaft (304) is rotatably connected to the bottom right side of the back panel (1). The left end of the rotating shaft (304) passes through the right side of the groove (303). Gears (305) are fixedly connected to the right end of the rotating rod (301) and the left end of the rotating shaft (304). The two gears (305) are meshed together. An adjustment assembly (306) is provided on the right side of the rotating shaft (304).

3. The easily detachable backrest cover according to claim 1, characterized in that: The fixing component (211) includes two fixing blocks (2111). The front sides of the two fixing blocks (2111) are respectively fixedly connected to the rear ends of the corresponding moving blocks (210). Fixing holes (2112) are provided on the left and right ends of the rear sides of the two mounting plates (202). Fixing bolts (2113) are rotatably connected to the adjacent rear ends of the two fixing blocks (2111).

4. The easily detachable backrest cover according to claim 1, characterized in that: The limiting component (212) includes multiple limiting blocks (2121), one side of each of the multiple limiting blocks (2121) is fixedly connected to the left and right sides of the corresponding moving block (210), and the two moving slots (209) have limiting slots (2122) on their left and right sides.

5. A backrest cover that is easy to assemble and disassemble according to claim 2, characterized in that: The adjustment assembly (306) includes a disc (3061), the left side of which is fixedly connected to the right end of the rotating shaft (304), and multiple adjustment holes (3062) are provided around the right side of the disc (3061). A limit hole (3064) is provided at the bottom right side of the back cover (1), and a limit rod (3063) is slidably connected to the top right side of the disc (3061).

6. A backrest cover that is easy to assemble and disassemble according to claim 1, characterized in that: The two movable blocks (210) are slidably connected to the interior of the corresponding sliding grooves (204), and the size of the movable blocks (210) matches that of the sliding grooves (204).

7. A backrest cover that is easy to assemble and disassemble according to claim 5, characterized in that: The left end of the limiting rod (3063) passes through the corresponding adjusting hole (3062), and the left end of the limiting rod (3063) is slidably connected to the inside of the limiting hole (3064).

8. A backrest cover that is easy to assemble and disassemble according to claim 3, characterized in that: The front ends of the two fixing bolts (2113) pass through the fixing block (2111) and are rotatably connected to the interior of the corresponding fixing hole (2112). The front side of the fixing block (2111) is slidably connected to the rear side of the mounting plate (202).

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