Pre-buckling hook structure and vehicle

Abstract

The utility model relates to a pre-hasp hook structure and a vehicle, the pre-hasp hook structure comprises a second connecting plate, a second hasp strip, a first hasp strip and a first connecting plate, the second hasp strip, the first hasp strip and the first connecting plate are connected in sequence, the second connecting plate is provided with a hanging hole, the first hasp strip penetrates through the hanging hole, and the second hasp strip and the first connecting plate are arranged on the two sides of the second connecting plate; when the first lapping strip and the inner wall of one side of the hanging hole are lapped and supported, the lapping position of the first lapping strip and the inner wall of the hanging hole is defined as a lever fulcrum, and the second lapping strip can be matched with the part, located above the lever fulcrum, of the second connecting plate in a compression joint mode; and the part of the first connecting plate below the lever fulcrum can be in compression fit with the part of the second connecting plate below the lever fulcrum. According to the pre-buckling hook structure and the vehicle, the problems that according to an existing buckling mode of the side wall front connecting plates and the front wheel cover upper inner plate, unhooking is prone to occurring, and the hanging states of the different side wall front connecting plates on the front wheel cover upper inner plate are inconsistent are solved.

Description

Technical Field

[0001] The present application relates to the technical field of pre-lapping structures of panels, and in particular to a pre-lapping hook structure and a vehicle. Background Art

[0002] At present, the front connecting plate of the side panel and the upper inner plate of the front wheel cover are pre-assembled and connected by a buckle. Specifically, a 7-shaped hook is provided on the front connecting plate of the side panel, and a notch is provided on the upper inner plate of the front wheel cover. The front connecting plate of the side panel is hung on the notch of the upper inner plate of the front wheel cover through the 7-shaped hook.

[0003] Furthermore, during the transportation between workstations, if the 7-shaped hook is not bent, the 7-shaped hook will easily fall off from the notch, causing the front connecting plate of the side panel to fall off. Therefore, after the 7-shaped hook is hung on the notch of the inner plate on the front wheel cover, the 7-shaped hook needs to be manually knocked and bent to enhance the connection firmness between the 7-shaped hook and the notch.

[0004] However, the force of manual knocking cannot be guaranteed to be completely consistent, which will cause inconsistent hanging states of different side panel front connecting plates on the inner plate of the front wheel arch, thereby affecting the precise positioning of the side panel front connecting plates by the tooling in the subsequent process, and even affecting the quality of the vehicle body and causing production line stoppage. Utility Model Content

[0005] Based on this, it is necessary to provide a pre-fastening hook structure and vehicle to solve the problem that the existing fastening method between the side panel front connecting plate and the upper inner plate of the front wheel cover is prone to unhooking and the hanging status of different side panel front connecting plates on the upper inner plate of the front wheel cover is inconsistent.

[0006] The pre-fastening hook structure provided by the present application includes a first strip, a second strip, a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate being arranged in parallel, the second connecting plate being provided with a hanging hole arranged through the thickness direction thereof, one end of the first strip being fixedly connected to the first connecting plate, the other end extending in a direction toward the second connecting plate and passing through the hanging hole, the second strip being fixedly connected to an end of the first strip away from the first connecting plate; when the first connecting plate is overlapped and supported by the first strip and the inner wall of the hanging hole on one side, the overlap of the first strip and the inner wall of the hanging hole is defined as a lever fulcrum, the part of the first connecting plate located below the lever fulcrum is the first lower end portion, the part of the second connecting plate located above the lever fulcrum is the second upper end portion, and the part of the second connecting plate located below the lever fulcrum is the second lower end portion, the second strip can be crimped into the second upper end portion, or the first lower end portion can be crimped into the second lower end portion.

[0007] In one embodiment, the pre-fastening hook structure further includes a third strap, and the first connecting plate is connected to an end of the second strap away from the first strap via the third strap.

[0008] In one embodiment, when the first connecting plate is arranged vertically, the third crossbar extends from the first connecting plate to the first crossbar along the vertical direction, and the second crossbar and the third crossbar are arranged in parallel.

[0009] In one embodiment, the angle between the first strap and the third strap is greater than 90°.

[0010] In one embodiment, a stamping groove is provided on the top of the first connecting plate, the third strap is connected to the bottom wall of the stamping groove, and the total length of the first strap, the second strap and the third strap is less than or equal to the depth of the stamping groove.

[0011] In one embodiment, the side walls opposite to the stamping groove are defined as the first side wall and the second side wall, the third bar, the first bar and the second bar are connected to form a hook frame, the hook frame and the first side wall are spaced apart, and the hook frame and the second side wall are spaced apart.

[0012] In one embodiment, the distance A between the hook frame and the first side wall satisfies 6mm≤A≤10mm, and the distance B between the hook frame and the second side wall satisfies 6mm≤B≤10mm.

[0013] In one embodiment, the thickness M of the hook frame satisfies 1.2 mm ≤ M ≤ 1.6 mm.

[0014] In one embodiment, the first bridge bar, the second bridge bar and the first connecting plate are integrally formed.

[0015] The present application also provides a vehicle comprising the pre-fastening hook structure described in any one of the above embodiments.

[0016] Compared with the prior art, the pre-buckled hook structure and vehicle provided in the present application, first, since one end of the first strap is fixedly connected to the first connecting plate, and the other end extends in the direction toward the second connecting plate and passes through the hanging hole, and the first connecting plate is overlapped and supported by the first strap and the inner wall of one side of the hanging hole, it can be seen that the first connecting plate and the second connecting plate can be hung with each other.

[0017] Furthermore, since the first connecting plate, the first crossbar, and the second crossbar can form a lever structure that is rotatably arranged around the overlap, or the second connecting plate can form a lever structure that is rotatably arranged around the overlap, and the second crossbar can be press-fitted with the second upper end, or the first lower end can be press-fitted with the second lower end, it can be seen that the first connecting plate and the second connecting plate can abut against and be press-fitted with each other. In this way, during transportation, the first connecting plate and the second connecting plate are always in a state of mutual compression, and at this time, the first connecting plate and the second connecting plate are unlikely to separate from each other, that is, the connection firmness of the pre-fastening hook structure is greatly guaranteed.

[0018] Furthermore, since the first connecting plate and the second connecting plate in the present application are firmly overlapped by the action of their own gravity, there is no need to knock and bend the first connecting bar and the second connecting bar again. Therefore, the hanging state of the first connecting plate or the second connecting plate will not be inconsistent, thereby improving the accuracy of positioning the first connecting plate or the second connecting plate in the subsequent process, improving the quality of the vehicle body and facilitating the smooth operation of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A schematic diagram of a partial structure of a pre-fastening hook structure according to an embodiment of the present application;

[0021] Figure 2 A cross-sectional view of a partial structure of a pre-fastened hook according to an embodiment of the present application;

[0022] Figure 3 This is a schematic diagram of the partial connection structure of the first connecting plate and the hook rack of an embodiment provided in the present application.

[0023] Figure numerals: 100, hook rack; 110, first crossbar; 120, second crossbar; 130, third crossbar; 200, first connecting plate; 210, first upper end portion; 220, first lower end portion; 230, stamping groove; 231, first side wall; 232, second side wall; 300, second connecting plate; 310, second upper end portion; 320, second lower end portion; 330, hanging hole. DETAILED DESCRIPTION

[0024] At present, the front connecting plate of the side panel and the upper inner plate of the front wheel cover are pre-assembled and connected by a buckle. Specifically, a 7-shaped hook is provided on the front connecting plate of the side panel, and a notch is provided on the upper inner plate of the front wheel cover. The front connecting plate of the side panel is hung on the notch of the upper inner plate of the front wheel cover through the 7-shaped hook.

[0025] Furthermore, during the transportation between workstations, if the 7-shaped hook is not bent, the 7-shaped hook will easily fall off from the notch, causing the front connecting plate of the side panel to fall off. Therefore, after the 7-shaped hook is hung on the notch of the inner plate on the front wheel cover, the 7-shaped hook needs to be manually knocked and bent to enhance the connection firmness between the 7-shaped hook and the notch.

[0026] However, the force of manual knocking cannot be guaranteed to be completely consistent, which will cause inconsistent hanging states of different side panel front connecting plates on the inner plate of the front wheel arch, thereby affecting the precise positioning of the side panel front connecting plates by the tooling in the subsequent process, and even affecting the quality of the vehicle body and causing production line stoppage.

[0027] See also Figure 1-Figure 3 In order to solve the problem that the existing buckling method between the side panel front connecting plate and the front wheel housing upper inner plate is prone to decoupling and the hanging status of different side panel front connecting plates on the front wheel housing upper inner plate is inconsistent, the present application provides a pre-buckled hook structure and a vehicle, the pre-buckled hook structure includes a first strap 110, a second strap 120, a first connecting plate 200 and a second connecting plate 300, the first connecting plate 200 and the second connecting plate 300 are arranged in parallel, the second connecting plate 300 is provided with a hanging hole 330 arranged through the thickness direction of itself, one end of the first strap 110 is fixedly connected to the first connecting plate 200, and the other end extends in a direction toward the second connecting plate 300 and passes through the hanging hole 330, the second strap 120 is fixedly connected to the end of the first strap 110 away from the first connecting plate 200, that is, the second strap 120 and the first connecting plate 200 are arranged on both sides of the second connecting plate 300.

[0028] It should be noted that the first connecting plate 200 can be the upper inner plate of the front wheel housing or the upper inner plate of the rear wheel housing, and the second connecting plate 300 can be the front connecting plate of the side panel or the rear connecting plate of the side panel, etc., which are not listed here one by one.

[0029] like Figure 2 As shown, when the first connecting plate 200 is overlapped and supported by the first bridge bar 110 and the inner wall of one side of the hanging hole 330, the overlap of the first bridge bar 110 and the inner wall of the hanging hole 330 is defined as the lever fulcrum, the part of the first connecting plate 200 located above the lever fulcrum is defined as the first upper end 210, the part of the first connecting plate 200 located below the lever fulcrum is defined as the first lower end 220, the part of the second connecting plate 300 located above the lever fulcrum is defined as the second upper end 310, and the part of the second connecting plate 300 located below the lever fulcrum is defined as the second lower end 320. Under the action of gravity, the second bridge bar 120 can be press-fitted with the second upper end 310, or the first lower end 220 can be press-fitted with the second lower end 320.

[0030] Specifically, the first connecting plate 200 is overlapped and supported by the first supporting bar 110 and the inner wall of the hanging hole 330, including the following two situations:

[0031] In the first case, the second connecting plate 300 is overlapped on the upper side of the first strip 110 through the top wall of the hanging hole 330. At this time, the first connecting plate 200 is fixed and the second connecting plate 300 is movable. The lever fulcrum is the overlap of the top wall of the hanging hole 330 and the upper side of the first strip 110. The second upper end 310 and the second lower end 320 can form a lever structure that is rotated around the lever fulcrum, and the center of gravity of the second connecting plate 300 is at the second lower end 320. At this time, the second upper end 310 has a tendency to rotate toward the direction close to the second strip 120 and can be stopped at the second strip 120, and the second lower end 320 has a tendency to rotate toward the direction close to the first lower end 220 and can be stopped at the first lower end 220.

[0032] In the second case, the first connecting plate 200 is overlapped with the bottom wall of the hanging hole 330 through the lower side of the first bar 110. At this time, the first connecting plate 200 is movably set, and the second connecting plate 300 is fixed. The lever fulcrum is the overlap of the bottom wall of the hanging hole 330 and the lower side of the first bar 110. The second bar 120 and the first lower end 220 can form a lever structure that is rotated around the lever fulcrum, and the center of gravity of the assembly formed by the first connecting plate 200, the first bar 110 and the second bar 120 is at the first lower end 220. At this time, the second bar 120 has a tendency to rotate toward the direction close to the second upper end 310 and can be stopped at the second upper end 310, and the first lower end 220 has a tendency to rotate toward the direction close to the second lower end 320 and can be stopped at the second lower end 320.

[0033] First, since one end of the first strap 110 is fixedly connected to the first connecting plate 200, and the other end extends in a direction toward the second connecting plate 300 and passes through the hanging hole 330, and the first connecting plate 200 is overlapped and supported by the inner wall of one side of the first strap 110 and the hanging hole 330, it can be seen that the first connecting plate 200 and the second connecting plate 300 can be hung with each other.

[0034] Furthermore, since the first connecting plate 200, the first crossbar 110, and the second crossbar 120 can form a lever structure that is rotatably arranged around the overlapped portion, or the second connecting plate 300 can form a lever structure that is rotatably arranged around the overlapped portion, and the second crossbar 120 can be press-fitted with the second upper end portion 310, or the first lower end portion 220 can be press-fitted with the second lower end portion 320, it can be seen that the first connecting plate 200 and the second connecting plate 300 can abut against and be press-fitted with each other. In this way, during transportation, the first connecting plate 200 and the second connecting plate 300 are always in a state of being squeezed against each other. At this time, the first connecting plate 200 and the second connecting plate 300 are unlikely to separate from each other, which greatly ensures the connection strength of the pre-fastening hook structure.

[0035] Furthermore, since the first connecting plate 200 and the second connecting plate 300 in the present application are firmly overlapped by their own gravity, there is no need to knock and bend the first connecting bar 110 and the second connecting bar 120 again. Therefore, the hanging state of the first connecting plate 200 or the second connecting plate 300 will not be inconsistent, thereby improving the accuracy of positioning the first connecting plate 200 or the second connecting plate 300 in the subsequent process, improving the quality of the vehicle body and facilitating the smooth operation of the production line.

[0036] In one embodiment, if Figure 2 As shown, the pre-fastening hook structure further includes a third bar 130 , and the first connecting plate 200 is connected to an end of the second bar 120 away from the first bar 110 via the third bar 130 .

[0037] It should be noted that the pre-fastened hook structure can be a metal part or a plastic part.

[0038] Compared with the second bar 120 being directly connected to the first connecting plate 200, this arrangement can improve the flexibility of the first bar 110 and the second bar 120. During assembly, the moderate elastic deformation of the third bar 130 can reduce the difficulty of the first bar 110 and the second bar 120 passing through the hanging hole 330.

[0039] However, the present invention is not limited thereto. In other embodiments, the second bridge bar 120 may also be directly connected to the first connecting plate 200 .

[0040] Specifically, in one embodiment, the first bridge bar 110 , the second bridge bar 120 , the third bridge bar 130 and the first connecting plate 200 are integrally formed.

[0041] Such a configuration is beneficial for improving the connection strength among the first strap 110 , the second strap 120 , the third strap 130 and the first connecting plate 200 .

[0042] Specifically, the first bridge bar 110 , the second bridge bar 120 , the third bridge bar 130 and the first connecting plate 200 may be formed by integral stamping and bending, or may be formed by integral casting, or may be formed by integral 3D printing.

[0043] However, the present invention is not limited thereto. In other embodiments, the first connecting plate 200 , the third bridge bar 130 , the first bridge bar 110 , and the second bridge bar 120 may be welded in sequence.

[0044] Furthermore, in one embodiment, when the first connecting plate 200 is vertically arranged, the third bar 130 extends vertically from the first connecting plate 200 to the first bar 110 , and the second bar 120 and the third bar 130 are arranged in parallel.

[0045] Such an arrangement is beneficial for improving the load-bearing capacity of the second and third bars 120 and 130 .

[0046] Furthermore, in one embodiment, if Figure 2 As shown, the angle between the first bar 110 and the third bar 130 is greater than 90°.

[0047] With such an arrangement, when the first connecting plate 200 is vertically arranged, the vertical height of the end of the first bar 110 connected to the third bar 130 is lower than the vertical height of the end of the first bar 110 connected to the second bar 120. At this time, under the action of gravity, when the second connecting plate 300 and the first bar 110 are overlapped and matched, the second connecting plate 300 has a tendency to slide toward the first connecting plate 200, that is, the position of the lever fulcrum can be closer to the first connecting plate 200, which is beneficial to improving the stability of the lever structure, that is, improving the assembly stability of the pre-fastened hook structure.

[0048] In one embodiment, if Figure 3 As shown, a stamping groove 230 is provided on the top of the first connecting plate 200, the third bar 130 is connected to the bottom wall of the stamping groove 230, and the total length of the first bar 110, the second bar 120 and the third bar 130 is less than or equal to the depth of the stamping groove 230.

[0049] It should be noted that the depth of the punched groove 230 is the distance between the bottom wall of the punched groove 230 and the opening of the punched groove 230; the total length of the first bar 110, the second bar 120 and the third bar 130 is: after the three are straightened, the length from the bottom wall of the punched groove 230 to the end of the second bar 120 away from the first bar 110.

[0050] Such a configuration is, on the one hand, conducive to forming the first, second and third bars 110, 120 and 130 by stamping, and on the other hand, conducive to maintaining substantially the same overall height of the first and second connecting plates 200, 300 during pre-lapping.

[0051] However, the present invention is not limited thereto. In other embodiments, the first strap 110 may be directly welded to the top edge of the first connecting plate 200 .

[0052] Furthermore, in one embodiment, if Figure 3 As shown, the side walls of the stamping groove 230 are defined to be the first side wall 231 and the second side wall 232 respectively, and the third bar 130, the first bar 110 and the second bar 120 are defined to be connected to form the hook frame 100, the hook frame 100 and the first side wall 231 are spaced apart, and the hook frame 100 and the second side wall 232 are spaced apart.

[0053] With such arrangement, a certain gap can be reserved during the bending process of the hook frame 100 to prevent the first side wall 231 and the second side wall 232 from interfering with the processing equipment.

[0054] Furthermore, in one embodiment, if Figure 3 As shown, the distance A between the hook frame 100 and the first side wall 231 satisfies 6 mm ≤ A ≤ 10 mm, and the distance B between the hook frame 100 and the second side wall 232 satisfies 6 mm ≤ B ≤ 10 mm.

[0055] Since the punching head of the punching equipment has a certain width, such a configuration is conducive to quickly punching the hook rack 100 on the first connecting plate 200 by the punching equipment.

[0056] In one embodiment, if Figure 2 As shown, the thickness M of the hook frame 100 satisfies 1.2 mm ≤ M ≤ 1.6 mm.

[0057] Such a configuration can reduce the difficulty of bending the hook frame 100 while ensuring the strength of the hook frame 100.

[0058] In one embodiment, there are multiple hook racks 100 , and the multiple hook racks 100 are spaced apart along the horizontal direction of the first connecting plate 200 to improve the connection stability of the first connecting plate 200 and the second connecting plate 300 .

[0059] The present application also provides a vehicle comprising the pre-fastening hook structure described in any one of the above embodiments.

[0060] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of patent protection for the present application shall be determined by the appended claims.

[0062] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0064] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0065] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0066] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are intended only to describe specific embodiments and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

Claims

1. A pre-fastened hook structure, characterized in that: The invention comprises a first bridge bar (110), a second bridge bar (120), a first connecting plate (200) and a second connecting plate (300), wherein the first connecting plate (200) and the second connecting plate (300) are arranged in parallel, and the second connecting plate (300) is provided with a hanging hole (330) which is arranged through the second connecting plate (300) along its thickness direction, one end of the first bridge bar (110) is fixedly connected to the first connecting plate (200), and the other end extends in a direction toward the second connecting plate (300) and passes through the hanging hole (330), and the second bridge bar (120) is fixedly connected to the end of the first bridge bar (110) away from the first connecting plate (200); When the first connecting plate (200) is overlapped and supported by the first strap (110) and the inner wall of one side of the hanging hole (330), the overlap of the first strap (110) and the inner wall of the hanging hole (330) is defined as a lever fulcrum, the portion of the first connecting plate (200) located below the lever fulcrum is the first lower end portion (220), the portion of the second connecting plate (300) located above the lever fulcrum is the second upper end portion (310), and the portion of the second connecting plate (300) located below the lever fulcrum is the second lower end portion (320), the second strap (120) can be press-fitted with the second upper end portion (310), or the first lower end portion (220) can be press-fitted with the second lower end portion (320).

2. The pre-fastened hook structure according to claim 1, characterized in that: It also includes a third strap (130), and the first connecting plate (200) is connected to an end of the second strap (120) away from the first strap (110) through the third strap (130).

3. The pre-fastened hook structure according to claim 2, characterized in that: When the first connecting plate (200) is arranged vertically, the third bar (130) extends from the first connecting plate (200) to the first bar (110) along the vertical direction, and the second bar (120) and the third bar (130) are arranged in parallel.

4. The pre-fastened hook structure according to claim 3, characterized in that: The angle between the first strap (110) and the third strap (130) is greater than 90°.

5. The pre-fastened hook structure according to claim 2, characterized in that: A stamping groove (230) is provided on the top of the first connecting plate (200), the third strap (130) is connected to the bottom wall of the stamping groove (230), and the total length of the first strap (110), the second strap (120) and the third strap (130) is less than or equal to the depth of the stamping groove (230).

6. The pre-fastened hook structure according to claim 5, characterized in that: The side walls of the punching groove (230) are defined as a first side wall (231) and a second side wall (232) respectively. The third bar (130), the first bar (110) and the second bar (120) are defined as being connected to form a hook frame (100). The hook frame (100) and the first side wall (231) are spaced apart, and the hook frame (100) and the second side wall (232) are spaced apart.

7. The pre-fastened hook structure according to claim 6, characterized in that: The distance A between the hook frame (100) and the first side wall (231) satisfies 6mm≤A≤10mm, and the distance B between the hook frame (100) and the second side wall (232) satisfies 6mm≤B≤10mm.

8. The pre-fastened hook structure according to claim 6, characterized in that: The thickness M of the hook frame (100) satisfies 1.2 mm ≤ M ≤ 1.6 mm.

9. The pre-fastened hook structure according to claim 1, characterized in that: The first bridge bar (110), the second bridge bar (120) and the first connecting plate (200) are integrally formed.

10. A vehicle, characterized in that: It comprises a pre-fastened hook structure as described in any one of claims 1 to claim 9.

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