Removable cover plate device and bicycle

Abstract

The application relates to the technical field of frames, in particular to a detachable cover plate device and a bicycle. The cover plate device comprises a support frame, a cover plate assembly, a hinged mounting assembly and a locking assembly. The support frame is provided with a mounting hole. One side of the cover plate assembly is provided with a hinge hole. The hinged mounting assembly is mounted on the support frame and located at one side of the cover plate assembly. A drive unit of the hinged mounting assembly drives a retractable hinge rod to extend out of the mounting hole and into the hinge hole, so that the cover plate assembly is hinged. When the hinge rod is retracted, the hinge is released. The detachable cover plate device can shield the goods of the bicycle and ensure the quality and safety. When loading and unloading the goods, the locking assembly is unlocked, the cover plate assembly can be hinged and turned over to reduce interference, improve efficiency and save cost. When necessary, the cover plate assembly can also be completely removed, so that the goods can be conveniently loaded and unloaded in different scenes.

Description

Technical Field

[0001] This application relates to the field of frame technology, and more specifically, to removable cover plate devices and bicycles. Background Technology

[0002] Freight bicycles, as an environmentally friendly and convenient urban logistics tool, are being used in areas such as express delivery and short-distance transportation. Existing freight bicycles typically feature an open cargo bed design, offering advantages such as large load capacity and easy loading and unloading, meeting the basic needs of transporting everyday goods. This design gives freight bicycles significant advantages in scenarios such as supermarket shopping and express delivery.

[0003] In existing technological solutions, the cargo bed structure of freight bicycles primarily considers load-bearing capacity and space utilization, and is generally made of metal or plastic, fixed to the rear of the frame by welding or bolting. Its open design facilitates quick loading and unloading of various goods, including boxed items, bagged goods, and irregularly shaped objects. This structure can fully meet transportation needs under good weather conditions, is easy to operate, and has low maintenance costs.

[0004] However, in actual use, especially in rainy areas or seasons, existing freight bicycles have revealed significant shortcomings. Because the cargo bed is completely exposed, transported goods are directly exposed to rainwater, leading to problems such as damp and damaged paper packaging and spoilage of food products. Even with temporary covering measures, such as laying waterproof tarpaulins, it is difficult to completely prevent rainwater seepage, and these temporary measures often affect loading and unloading efficiency. Utility Model Content

[0005] The purpose of this application is to provide a detachable cover device and a bicycle, which can both cover goods and be folded to reduce obstruction to loading and unloading.

[0006] To achieve the above objectives, in a first aspect, the present invention provides a detachable cover plate device, comprising: A support frame, which provides an installation base and has mounting holes; A cover plate assembly, wherein a hinge hole is provided on one side of the cover plate assembly; A hinged mounting assembly is mounted on the support frame and located on one side of the cover plate assembly. The hinged mounting assembly includes a drive unit and a hinge rod, which is telescopically mounted in the mounting hole. The drive unit drives one end of the hinge rod to extend out of the mounting hole and into the hinge hole, so that the cover plate assembly is hingedly mounted on the hinge rod. When the hinge rod retracts into the mounting hole, one side of the cover plate assembly is disengaged from the hinge rod. A locking component is disposed on the support frame and located on the other side of the cover plate assembly, the locking component being used for fixed connection with the other side of the cover plate assembly.

[0007] In an optional embodiment, the drive unit includes a first elastic element disposed in the mounting hole, the first elastic element being used to push the hinge rod out of the mounting hole.

[0008] In an optional embodiment, the drive unit further includes a second elastic element, a stop ring, and a mounting post, wherein the second elastic element and the mounting post are disposed in the mounting hole; The first elastic element is sleeved on one end of the mounting post, and the second elastic element is sleeved on the other end of the mounting post; The stop ring is fixedly disposed on the outer circumferential surface of the mounting post and located between the first elastic member and the second elastic member. The stop ring is used to block the first elastic member and the second elastic member. The second elastic member pushes the stop ring, causing the stop ring and the mounting post to move closer to the first elastic member. The stop ring pushes the first elastic member, causing the first elastic member and the hinge rod to move outward from the mounting hole.

[0009] In an optional embodiment, the support frame includes a mounting base, a first frame, and a second frame. The first frame is located on one side of the cover plate assembly, and the second frame is located on the other side of the cover plate assembly. The mounting base is fixedly mounted on the first frame, and the mounting base is provided with the mounting hole. The locking component is fixedly mounted on the second frame.

[0010] In an optional embodiment, the mounting base includes a first fixing block and a second fixing block, which are vertically fixedly connected. The second fixing block is fixedly mounted on the first frame and is provided with a weight reduction through hole; The first fixing block has the mounting hole.

[0011] In an optional embodiment, a sliding groove communicating with the mounting hole is provided on the side wall of the first fixing block, and the sliding groove extends along the axial direction of the mounting hole; The hinge rod is provided with a toggle rod. One end of the toggle rod is fixedly connected to the hinge rod and located in the mounting hole. The other end of the toggle rod extends out of the toggle groove. The toggle rod slides back and forth in the toggle groove to drive the hinge rod to extend or retract into the mounting hole.

[0012] In an optional embodiment, the cover plate assembly includes a mounting frame and a cover plate. The mounting frame is provided with a mating groove, and the side wall of the mating groove is provided with the hinge hole. The cover plate is fixedly mounted on the mounting frame.

[0013] In an optional embodiment, the mounting frame is provided with a stepped groove for accommodating the cover plate, and the cover plate is fixedly disposed in the stepped groove.

[0014] In an optional embodiment, the mounting frame is provided with a weight-reduction chamber, and the weight-reduction chamber and the mounting hole extend along the extension direction of the mounting frame.

[0015] Secondly, this utility model provides a bicycle, comprising: Frame; The removable cover plate device as described in any of the foregoing embodiments, wherein the support frame of the removable cover plate device is mounted on the vehicle frame.

[0016] The detachable cover device provided in the embodiments of this application can cover the goods on the bicycle, ensuring the quality and safety of the goods. When loading and unloading are required, after the locking component is unlocked, the cover component can be hinged and flipped on the support frame through the set hinged mounting component, reducing interference with the goods, improving loading and unloading efficiency, and saving costs. If necessary, the cover component can also be completely removed from the hinged mounting component, providing convenience for loading and unloading in different scenarios.

[0017] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of one perspective of one embodiment of the removable cover plate device provided in this application is shown. Figure 2 A two-view structural schematic diagram of one embodiment of the removable cover plate device provided in this application is shown; Figure 3 A three-view structural schematic diagram of one embodiment of the removable cover plate device provided in this application is shown, with the cover plate omitted. Figure 4 for Figure 3The enlarged view of part A in the middle shows that, in order to show the position of the mounting hole more clearly, some of the structure of the mounting frame has been hidden and the hidden part of the mechanism has been indicated by dashed lines. Figure 5 The diagram shows a four-view structural schematic of one embodiment of the removable cover plate device provided in this application; Figure 6 Showing Figure 5 Sectional view along the DD direction; Figure 7 Showing Figure 5 A sectional view along the EE direction; Figure 8 Showing Figure 6 Enlarged view of point B in the middle; Figure 9 The illustration shows a four-view structural schematic diagram of a cover assembly of one embodiment of the removable cover device provided in this application; Figure 10 Showing Figure 9 A magnified view of a section at point C.

[0020] icon: 100-Support frame; 110-Mounting base; 111-First fixing block; 112-Actuating through slot; 113-Second fixing block; 114-Weight reduction through hole; 120-First frame; 130-Second frame; 131-Mounting hole; 200 - Cover plate assembly; 210 - Mounting frame; 211 - Hinge hole; 212 - Weight reduction chamber; 214 - Mating groove; 220 - Cover plate; 221 - Stepped groove; 230 - Support structure; 300 - Hinged mounting assembly; 310 - Hinged rod; 320 - Actuating rod; 330 - Drive unit; 331 - First elastic element; 332 - Second elastic element; 334 - Mounting post; 336 - Stop ring; 400 - Locked component. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] The embodiments of this application provide a detachable cover device and a bicycle. The detachable cover device provided in the embodiments of this application can be installed on the bicycle provided in the embodiments of this application. The opening of the bicycle's cargo bed faces upward, and the detachable cover device is installed at the opening of the cargo bed to protect the goods on the bicycle cargo bed from rain and other hazards. Furthermore, the detachable cover device is easy to remove and does not hinder loading and unloading of goods. Of course, the detachable cover device can also be applied to other equipment, such as handcarts. The technical solution will be described below with the example of the detachable cover device being installed on a bicycle.

[0025] In a first aspect, embodiments of this application provide a detachable cover plate device, including a support frame 100, a cover plate assembly 200, a hinged mounting assembly 300, and a locking assembly 400.

[0026] like Figure 1 As shown, the support frame 100 is used to provide the mounting base.

[0027] like Figure 3 and Figure 4 As shown, the support frame 100 is provided with mounting holes 131.

[0028] For example, the support frame 100 can be mounted on a bicycle.

[0029] like Figure 9 and Figure 10 As shown, a hinge hole 211 is provided on one side of the cover plate assembly 200.

[0030] like Figure 1As shown, the hinged mounting assembly 300 is mounted on the support frame 100 and located on one side of the cover plate assembly 200. The hinged mounting assembly 300 includes a drive unit 330 and a hinge rod 310.

[0031] like Figure 6 and Figure 7 As shown, the hinge rod 310 is telescopically mounted in the mounting hole 131.

[0032] The drive unit 330 drives one end of the hinge rod 310 to extend out of the mounting hole 131 and into the hinge hole 211, so that the cover plate assembly 200 is hingedly mounted on the hinge rod 310. When the hinge rod 310 retracts into the mounting hole 131, one side of the cover plate assembly 200 is disengaged from the hinge rod 310.

[0033] like Figure 2 As shown, the locking component 400 is disposed on the support frame 100 and located on the other side of the cover plate assembly 200. The locking component 400 is used to fix the other side of the cover plate assembly 200.

[0034] During use, the cover plate assembly 200 is placed on the support frame 100. On one side of the cover plate assembly 200, the drive unit 330 drives the hinge rod 310 to extend from the mounting hole 131 and into the hinge hole 211 of the cover plate assembly 200, so that one side of the cover plate assembly 200 is hinged to the hinge rod 310. On the other side of the cover plate assembly 200, the locking assembly 400 locks the other side of the cover plate assembly 200. Thus, the two sides of the cover plate assembly 200 are mounted on the support frame 100 by the hinge mounting assembly 300 and the locking assembly 400, preventing the cover plate assembly 200 from shaking. When the bicycle needs to be unloaded or loaded, the locking component 400 releases its lock from the cover plate assembly 200. At this time, the cover plate assembly 200 is hinged to the hinge rod 310 of the hinge mounting assembly 300, allowing the cover plate assembly 200 to flip relative to the support frame 100. This reduces interference between the cover plate assembly 200 and the goods during unloading or loading, improving loading and unloading efficiency. Of course, when the bicycle needs to be unloaded or loaded, the cover plate assembly 200 can also be removed from the hinge mounting assembly 300. During removal, the hinge rod 310 retracts into the mounting hole 131, thereby disengaging the hinge rod 310 from the hinge hole 211 of the cover plate assembly 200. This disengages the hinge mounting assembly 300 from the cover plate assembly 200, disengaging both sides of the cover plate assembly 200. The cover plate assembly 200 can then be completely removed from the support frame 100, further preventing interference between the cover plate assembly 200 and the goods during unloading or loading.

[0035] In rainy areas or seasons, the open cargo beds of existing freight bicycles are susceptible to water damage, leading to issues such as damp and damaged paper packaging and food spoilage. The detachable cover device proposed in this application, installed at the opening of the bicycle cargo bed, effectively blocks rainwater, providing protection for the goods and preventing damage caused by weather conditions. This expands the applicability of freight bicycles in various weather conditions and ensures the quality and safety of transported goods.

[0036] During loading and unloading, after the locking component 400 is released from the lock on the cover assembly 200, the cover assembly 200 can be hinged and rotated relative to the support frame 100 through the hinged mounting component 300, so that the cover will not completely obstruct the loading and unloading of goods, reducing the interference between the cover and the goods. Operators do not need to completely remove the cover to carry out loading and unloading operations, which improves the efficiency of loading and unloading and saves time and labor costs.

[0037] When further interference between the cover assembly 200 and the cargo needs to be avoided, the cover assembly 200 can be completely removed from the hinged mounting assembly 300. By retracting the hinge rod 310 into the mounting hole 131, it disengages from the hinge hole 211 of the cover assembly 200, thus releasing the connection between the hinged mounting assembly 300 and the cover assembly 200. Both sides of the cover assembly 200 are disengaged, allowing it to be completely removed from the support frame 100. This provides greater convenience for loading and unloading in different scenarios, and is especially suitable for loading and unloading large, irregular, or space-constrained goods.

[0038] like Figure 1 As shown, two hinged mounting assemblies 300 are provided on the support frame 100, and the extension and retraction directions of the hinge rods 310 of the two hinged mounting assemblies 300 are opposite.

[0039] In one embodiment, the drive unit 330 includes a telescopic member, one end of which is fixedly installed in the mounting hole 131, and the other end of which is connected to the hinge rod 310. The telescopic member extends and retracts, causing the hinge rod 310 to extend and retract at the mounting hole 131.

[0040] For example, telescopic components include, but are not limited to, hydraulic telescopic mechanisms, pneumatic telescopic mechanisms, electric actuator telescopic mechanisms, threaded screw telescopic mechanisms, or linear motors.

[0041] Unlike the technical solution in the above embodiments where the drive unit 330 includes a telescopic member, such as... Figures 8 to 10 As shown, in one embodiment, the drive unit 330 includes a first elastic element 331, which is capable of telescoping and rebounding. The first elastic element 331 is disposed in the mounting hole 131 and is used to push the hinge rod 310 out of the mounting hole 131.

[0042] For example, the first elastic element 331 includes, but is not limited to, helical springs, wave springs, disc springs, leaf springs, steel leaf springs, rubber springs, air springs, etc.

[0043] When it is necessary to retract the hinge rod 310 into the mounting hole 131, the hinge rod 310 can be manually pressed to retract it into the mounting hole 131 (or a magnetic connection can be established between the magnet and the hinge rod 310, and the movement of the magnet will cause the hinge rod 310 to retract into the mounting hole 131). When the hinge rod 310 retracts into the mounting hole 131, the first elastic element 331 is compressed. When it is necessary to extend the hinge rod 310 out of the mounting hole 131, the hinge rod 310 is released, the first elastic element 331 extends and pushes the hinge rod 310 out of the mounting hole 131 and into the hinge hole 211 of the cover plate assembly 200.

[0044] To prevent the first elastic element 331 from failing due to expansion and contraction, such as Figure 10 As shown, in one embodiment, the drive unit 330 further includes a second elastic element 332, a stop ring 336, and a mounting post 334.

[0045] like Figure 8 As shown, the second elastic element 332 and the mounting post 334 are disposed in the mounting hole 131.

[0046] The second elastic element 332 is capable of extending and retracting. Exemplarily, the second elastic element 332 includes, but is not limited to, helical springs, wave springs, disc springs, leaf springs, steel leaf springs, rubber springs, air springs, etc.

[0047] like Figure 9 and Figure 10 As shown, the first elastic element 331 is sleeved on one end of the mounting post 334, and the second elastic element 332 is sleeved on the other end of the mounting post 334.

[0048] The stop ring 336 is fixedly disposed on the outer peripheral surface of the mounting post 334 and located between the first elastic element 331 and the second elastic element 332. The stop ring 336 is used to block the first elastic element 331 and the second elastic element 332.

[0049] During use, the second elastic element 332 pushes the stop ring 336, causing the stop ring 336 and the mounting post 334 to move closer to the first elastic element 331. The stop ring 336 pushes the first elastic element 331, causing the first elastic element 331 and the hinge rod 310 to move outward from the mounting hole 131.

[0050] To provide an installation base for the support frame 100, such as Figure 3 and Figure 4 As shown, in one embodiment, the support frame 100 includes a mounting base 110, a first frame 120, and a second frame 130.

[0051] The first frame 120 is located on one side of the cover plate assembly 200, and the second frame 130 is located on the other side of the cover plate assembly 200.

[0052] For example, a first frame 120 is mounted on one side of the bicycle and a second frame 130 is mounted on the other side of the bicycle. The first frame 120 is used to support one side of the cover assembly 200 and the second frame 130 is used to support the other side of the cover assembly 200.

[0053] The mounting base 110 is fixedly installed on the first frame 120, and the fixing method is, for example, snap-fit, adhesive or bolt connection.

[0054] like Figure 4 As shown, the mounting base 110 is provided with a mounting hole 131, and the hinge rod 310, the first elastic element 331 and the second elastic element 332 are installed in the mounting hole 131 on the mounting base 110.

[0055] like Figure 2 and Figure 3 As shown, the locking component 400 is fixedly mounted on the second frame 130.

[0056] like Figure 4 As shown, in one embodiment, the mounting base 110 includes a first fixing block 111 and a second fixing block 113, which are vertically fixedly connected. The fixing method of the first fixing block 111 and the second fixing block 113 is, for example, welding, gluing or integral molding.

[0057] The second fixing block 113 is fixedly mounted on the first frame 120 and is provided with a weight-reducing through hole 114. The fixing method is, for example, snap-fit, adhesive or bolt connection. The weight-reducing through hole 114 is provided to reduce the weight of the second fixing block 113 and the mounting base 110.

[0058] The first fixing block 111 has a mounting hole 131.

[0059] like Figure 4 As shown, the first fixing block 111 and the second fixing block 113 are vertically fixed. This arrangement prevents the cover assembly 200 from interfering with the second fixing block 113 and the first frame 120 during the flipping process, thereby reducing wear on the cover assembly 200.

[0060] To facilitate operation of the hinge rod 310, such as Figure 3 and Figure 4 As shown, in one embodiment, the side wall of the first fixing block 111 is provided with a toggle groove 112 that communicates with the mounting hole 131, and the toggle groove 112 extends along the axial direction of the mounting hole 131.

[0061] like Figure 8As shown, a toggle lever 320 is provided on the hinge rod 310. One end of the toggle lever 320 is fixedly connected to the hinge rod 310 and located in the mounting hole 131. The other end of the toggle lever 320 extends out of the toggle groove 112. The toggle lever 320 slides back and forth in the toggle groove 112 to drive the hinge rod 310 to extend or retract into the mounting hole 131.

[0062] For example, the toggle lever 320 and the hinge lever 310 are fixedly connected by welding, snap-fitting, bolting or other methods.

[0063] like Figure 1 As shown, in one embodiment, the cover plate assembly 200 includes a mounting frame 210 and a cover plate 220.

[0064] like Figure 8 and Figure 9 As shown, the mounting frame 210 is provided with a mating groove 214, and the side wall of the mating groove 214 is provided with a hinge hole 211.

[0065] The cover plate 220 is fixedly installed on the mounting frame 210, and the fixing method is, for example, welding, snap-fitting or bolt connection.

[0066] In one embodiment, the cover plate 220 is configured as a solar panel.

[0067] like Figure 5 and Figure 7 As shown, in one embodiment, the mounting frame 210 is provided with a stepped groove 221 for accommodating the cover plate 220, and the cover plate 220 is fixedly disposed in the stepped groove 221.

[0068] like Figure 7 As shown, in one embodiment, a weight-reducing chamber 212 is provided on the mounting frame 210, and the weight-reducing chamber 212 extends in the mounting frame 210 along the extending direction of the mounting frame 210.

[0069] Mounting holes 131 are provided in the mounting frame 210 along the extending direction of the mounting frame 210.

[0070] The weight-reducing chamber 212 and the mounting hole 131 reduce the weight of the mounting frame 210, reduce the stress on the support frame 100, and improve the service life of the support frame 100.

[0071] In one embodiment, the locking assembly 400 includes two magnetic components. One magnetic component is fixedly mounted on the second frame 130, and the other magnetic component is fixedly mounted on the other side of the mounting frame 210. The fixing method is, for example, adhesive, snap-fit, or bolt connection. The two magnetic components can be magnetically connected to lock the cover assembly 200 relative to the support frame 100.

[0072] Unlike the locking component 400 in the above embodiment which includes a magnetic element, in another embodiment, the locking component 400 includes a male buckle and a female buckle. The male buckle is fixedly mounted on the second frame 130, and the female buckle is fixedly mounted on the other side of the mounting frame 210. The fixing method is, for example, adhesive, snap-fit, or bolt connection. The male buckle and the female buckle snap together to lock the cover plate assembly 200 relative to the support frame 100.

[0073] To better support the cover plate 220, such as Figure 3 As shown, in one embodiment, a support structure 230 is provided on the mounting frame 210. The support structure 230 is, for example, a plate or a rod. The end of the support structure 230 is fixedly mounted on the mounting frame 210. The fixing method is, for example, welding, gluing, snap-fitting or bolt connection.

[0074] One or more support structures 230 are provided. For example, one support structure 230 is provided, with one end fixedly disposed on one side of the mounting frame 210 and the other end fixedly disposed on the other side of the mounting frame 210. In another embodiment, two support structures 230 are provided, arranged parallel and spaced apart. In another embodiment, two support structures 230 are provided, arranged intersectingly. In yet another embodiment, as... Figure 3 and Figure 7 As shown, three support structures 230 are provided, arranged in an I-shape. In another embodiment, three support structures 230 are provided, arranged in parallel and spaced apart. In yet another embodiment, four support structures 230 are provided, arranged in a grid pattern; of course, other numbers of support structures 230 can also be provided, such as five, six, or seven.

[0075] Secondly, embodiments of this application provide a bicycle, including a frame and a detachable cover plate device according to any of the above embodiments, wherein a support frame 100 of the detachable cover plate device is mounted on the frame; exemplaryly, a first frame 120 and a second frame 130 are mounted on the frame. Of course, the bicycle includes other components, such as wheels, handlebars, etc., which will not be described in detail here.

[0076] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0077] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A detachable cover plate device, characterized in that, include: A support frame (100) is provided to provide an installation base, and the support frame (100) is provided with mounting holes (131). A cover plate assembly (200) having a hinge hole (211) on one side. A hinged mounting assembly (300) is mounted on the support frame (100) and located on one side of the cover plate assembly (200). The hinged mounting assembly (300) includes a drive unit (330) and a hinge rod (310). The hinge rod (310) is telescopically mounted in the mounting hole (131). The drive unit (330) drives one end of the hinge rod (310) to extend out of the mounting hole (131) and into the hinge hole (211) so that the cover plate assembly (200) is hinged to the hinge rod (310). When the hinge rod (310) retracts into the mounting hole (131), one side of the cover plate assembly (200) is disengaged from the hinge rod (310). A locking component (400) is disposed on the support frame (100) and located on the other side of the cover plate assembly (200), the locking component (400) being used for fixed connection with the other side of the cover plate assembly (200).

2. The detachable cover plate device according to claim 1, characterized in that, The drive unit (330) includes a first elastic element (331), which is disposed in the mounting hole (131) and is used to push the hinge rod (310) out of the mounting hole (131).

3. The detachable cover plate device according to claim 2, characterized in that, The drive unit (330) further includes a second elastic element (332), a stop ring (336), and a mounting post (334), wherein the second elastic element (332) and the mounting post (334) are disposed in the mounting hole (131); The first elastic element (331) is sleeved on one end of the mounting post (334), and the second elastic element (332) is sleeved on the other end of the mounting post (334); The stop ring (336) is fixedly disposed on the outer peripheral surface of the mounting post (334) and located between the first elastic member (331) and the second elastic member (332). The stop ring (336) is used to block the first elastic member (331) and the second elastic member (332). The second elastic member (332) pushes the stop ring (336) to make the stop ring (336) and the mounting post (334) move closer to the first elastic member (331). The stop ring (336) pushes the first elastic member (331) to make the first elastic member (331) and the hinge rod (310) move outward from the mounting hole (131).

4. The detachable cover plate device according to claim 1, characterized in that, The support frame (100) includes a mounting base (110), a first frame (120), and a second frame (130). The first frame (120) is located on one side of the cover plate assembly (200), and the second frame (130) is located on the other side of the cover plate assembly (200). The mounting base (110) is fixedly mounted on the first frame (120), and the mounting base (110) is provided with the mounting hole (131). The locking component (400) is fixedly mounted on the second frame (130).

5. The detachable cover plate device according to claim 4, characterized in that, The mounting base (110) includes a first fixing block (111) and a second fixing block (113), and the first fixing block (111) and the second fixing block (113) are vertically fixedly connected; The second fixing block (113) is fixedly mounted on the first frame (120) and is provided with a weight reduction through hole (114). The first fixing block (111) has the mounting hole (131).

6. The detachable cover plate device according to claim 5, characterized in that, The first fixing block (111) has a sliding groove (112) on its side wall that communicates with the mounting hole (131), and the sliding groove (112) extends along the axial direction of the mounting hole (131). A lever (320) is provided on the hinge rod (310). One end of the lever (320) is fixedly connected to the hinge rod (310) and located in the mounting hole (131). The other end of the lever (320) extends out of the lever groove (112). The lever (320) slides back and forth in the lever groove (112) to drive the hinge rod (310) to extend or retract into the mounting hole (131).

7. The detachable cover plate device according to claim 1, characterized in that, The cover plate assembly (200) includes a mounting frame (210) and a cover plate (220). The mounting frame (210) is provided with a mating groove (214), and the side wall of the mating groove (214) is provided with the hinge hole (211). The cover plate (220) is fixedly installed on the mounting frame (210).

8. The detachable cover plate device according to claim 7, characterized in that, The mounting frame (210) is provided with a stepped groove (221) for accommodating the cover plate (220), and the cover plate (220) is fixedly disposed in the stepped groove (221).

9. The detachable cover plate device according to claim 7, characterized in that, The mounting frame (210) is provided with a weight reduction chamber (212), and the weight reduction chamber (212) and the mounting hole (131) extend in the mounting frame (210) along the extension direction of the mounting frame (210).

10. A bicycle, characterized in that, include: Frame; The removable cover plate device as claimed in any one of claims 1 to 9, wherein the support frame (100) of the removable cover plate device is mounted on the vehicle frame.

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