A buckle structure for side outer cover

Abstract

A side outer cover buckle structure includes an outer plug and a bottom card seat connected to each other, the bottom card seat includes an assembly part and an insertion part, the bottom end of the insertion part extends to the bottom of the installation plane after passing through the installation through hole, the bottom surface of the assembly part around the intersection of the assembly part and the insertion part fits the installation plane, the installation plane is an inclined surface, the assembly part and the insertion part are internally provided with a common through-going plug column hole for insertion connection with the outer plug, and the check head in the outer plug is wider than the bottom of the column hole to play a check function after insertion connection. This design not only has a better assembly effect of the buckle when the installation plane is an inclined surface, but also has a low manufacturing cost and is easy to assemble.

Description

Technical Field

[0001] The invention relates to a buckle structure, belongs to the field of fasteners, and in particular to a buckle structure of a side outer cover plate, which is specifically suitable for buckle connection when the installation plane is an inclined surface. Background Art

[0002] At present, when the buckle structure is used, the top surface of the bottom card seat must be kept parallel to the installation plane, so that the buckle is easier to operate when it is connected. The most common situation is that the top surface of the bottom card seat and the installation plane are both horizontal planes. However, in actual applications, it is often encountered that the installation plane is not a horizontal plane but an inclined plane. At this time, the conventional buckle structure is difficult to meet the assembly needs, which increases the difficulty of assembly and reduces the assembly effect.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of this patent application, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects and problems in the prior art that the assembly effect of the buckle is poor when the installation plane is an inclined plane, and to provide a side outer cover buckle structure with better assembly effect of the buckle when the installation plane is an inclined plane.

[0005] To achieve the above objectives, the technical solution of the present invention is: a side outer cover plate buckle structure, comprising an outer plug pin and a bottom clamping seat connected to each other, wherein the bottom clamping seat is connected to the installation plane;

[0006] The mounting plane is an inclined plane, and a mounting through hole is provided on the mounting plane; the bottom card seat includes an assembly part and an insertion part, one end of the insertion part is coaxially connected to the bottom surface of the assembly part, and the other end of the insertion part extends to the bottom of the mounting plane after passing through the mounting through hole, and the bottom surface of the assembly part around the intersection of the assembly part and the insertion part is in contact with the mounting plane; the assembly part and the insertion part are provided with a common through-going latch column hole, and the top and bottom openings of the latch column hole are respectively the top opening of the column hole and the bottom opening of the column hole;

[0007] The external plug pin includes an external connecting part, an internal pin rod and a check head, one end of the internal pin rod is connected to the external connecting part, and the other end of the internal pin rod passes through the top opening of the column hole and the bottom opening of the column hole in sequence and is connected to the check head, and the widths of the top opening of the column hole, the internal pin rod, the check head and the bottom opening of the column hole decrease in sequence, and the portion of the external connecting part surrounding the intersection of the external connecting part and the internal pin rod is in contact with the top surface of the assembly part, and the top surface of the assembly part is a horizontal plane or an inclined plane.

[0008] The assembly portion includes an assembly left end portion, an assembly middle portion and an assembly right end portion, the right side surface of the assembly left end portion is connected to the left side surface of the assembly right end portion via the assembly middle portion, the right side surface of the assembly right end portion includes an upper inclined surface and a lower vertical surface, the top end of the upper inclined surface is connected to the top surface of the assembly portion, and the bottom end of the lower vertical surface is connected to the bottom surface of the assembly portion;

[0009] The top surface of the assembly middle part is the top surface of the assembly part, and the bottom surfaces of the assembly left end part, the assembly middle part, and the assembly right end part are connected in sequence to form the bottom surface of the assembly part, and the bottom end of the assembly left end part is higher than the bottom end of the assembly right end part.

[0010] The inner pin rod includes an upper column rod, a middle supporting rod and a lower column rod. The top end of the upper column rod is connected to the bottom surface of the external connection part, and the bottom end of the upper column rod is connected to the middle part of the top end of the stop turn after passing through the middle supporting rod and the lower column rod in sequence. The top end of the stop turn around the intersection of the stop turn and the lower column rod is in contact with the bottom surface of the insertion part; the diameter of the upper column rod is larger than the diameter of the lower column rod, and the top end of the middle supporting rod is wider than its bottom end.

[0011] The upper column rod and the lower column rod are both cylindrical structures, the middle support rod is a truncated cone structure that is wide at the top and narrow at the bottom, and the cross section of the check valve is a triangle that is wide at the top and narrow at the bottom.

[0012] The pin column hole includes an upper pin column hole and a lower pin column hole. The top of the column hole is connected with the bottom of the column hole after passing through the upper pin column hole and the lower pin column hole in sequence. The upper pin column hole is a cylindrical structure, and the lower pin column hole is a truncated cone structure that is wide at the top and narrow at the bottom. The intersection of the upper pin column hole and the lower pin column hole is set lower than the intersection of the middle supporting rod and the lower column rod.

[0013] The external connection part includes an outer middle column and an outer upper flat plate and an outer lower flat plate vertically connected to its two ends, and the widths of the outer middle column, the outer upper flat plate and the outer lower flat plate increase successively; the bottom surface of the outer lower flat plate is in contact with the top surface of the assembly part, and the side circumference of the outer middle column and the bottom surface of the outer upper flat plate and the top surface of the outer lower flat plate together form an outer ring groove.

[0014] An outer column cavity is commonly formed inside the outer upper plate, the outer middle column and the outer lower plate.

[0015] A left-right symmetrical snap-in window is provided on the side periphery of the insertion portion, the bottom edge of the snap-in window is connected to the bottom end of the rebound block via a fixed plate, the top end of the rebound block is lower than the top of the snap-in window, and rebound grooves are formed between the left and right sides of the rebound block and the left and right sides of the snap-in window, and the top end of the rebound block is wider than the bottom end of the rebound block.

[0016] The rebound block includes a rebound top surface, a rebound outer side surface and a rebound inner side surface. The rebound inner side surface is flush with the inner side surface of the fixed plate. A mounting plane is sandwiched between the rebound top surface and the bottom surface of the assembly portion. The top end of the rebound outer side surface protrudes outward relative to its bottom end.

[0017] The side periphery of the insertion part is connected to the side of the anti-error boss, the top surface of the anti-error boss is connected to the bottom surface of the assembly part, and an anti-error opening communicating with the mounting through hole is opened on the installation plane, and the anti-error opening is correspondingly inserted and matched with the anti-error boss.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In a buckle structure of a side outer cover plate of the present invention, the bottom card seat includes an assembly part and an insertion part (preferably a coaxial vertical connection) connected to each other, and the bottom surface of the assembly part around the intersection of the assembly part and the insertion part fits with the installation plane, and the installation plane is an inclined surface, and a mounting through hole is provided on the installation plane. During assembly, one end of the insertion part is coaxially connected to the bottom surface of the assembly part, and the other end of the insertion part extends to the bottom of the installation plane after passing through the mounting through hole, and then the external pin is inserted into the pin column hole. It can be seen that through the fit between the bottom surface of the assembly part and the installation plane, the design can be applied to the clamping requirements when the installation plane is an inclined surface, reducing the difficulty of installation, thereby playing a good installation role. Therefore, when the installation plane is an inclined surface, the assembly effect of the buckle is better.

[0020] 2. The buckle structure of the side outer cover plate of the present invention mainly includes an outer plug and a bottom card seat connected to each other, wherein the bottom surface of the bottom card seat is designed as an inclined surface to adapt to the inclined installation plane, and the outer plug and the bottom card seat are two independent parts. This split design can avoid the defects of an integrated structure - if it is made into an integral part, it is necessary to add a core pulling or slider structure, which will greatly increase the process risk and mold cost in a small-sized buckle mold. After being made into a split structure, the two parts will not increase the mold size much, and the process is simple, the risk is low and the installation is easy. Therefore, the manufacturing cost of the present invention is low and the installation is convenient.

[0021] 3. In a buckle structure of a side outer cover plate of the present invention, the outer plug includes an outer connecting part, an inner pin rod and a check head, wherein one end of the inner pin rod is connected to the outer connecting part, and the other end of the inner pin rod is connected to the check head after passing through the top opening of the column hole and the bottom opening of the column hole in sequence, and the width of the top opening of the column hole, the inner pin rod, the check head and the bottom opening of the column hole are reduced in sequence. This design can not only make the inner pin rod pass through the plug column hole smoothly, but also ensure that the check head is checked by the bottom opening of the column hole after passing through, thereby improving the firmness of the outer plug and the bottom card seat after being inserted and connected. Therefore, the connection firmness of the present invention is relatively strong.

[0022] 4. In a side enclosure outer cover snap-on structure of the present invention, a left-right symmetrical snap-on window is provided on the side enclosure of the insertion part, wherein the snap-on window is a hollow frame structure, the bottom edge of the snap-on window is connected to the bottom end of the rebound block through a fixed plate, the rebound block is located inside the snap-on window, the top of the rebound block is lower than the top of the snap-on window, and a rebound groove is formed between the left and right sides of the rebound block and the left and right sides of the snap-on window, and the top of the rebound block is wider than the bottom end of the rebound block. When used, when the bottom card seat is inserted into the mounting through hole on the mounting plane, the rebound block shrinks inward to facilitate the insertion of the bottom card seat, and after the bottom card seat is inserted, the rebound block rebounds to expand outward, thereby limiting the position of the bottom card seat to prevent it from continuing to go down, especially when the rebound top surface in the rebound block contacts the bottom surface of the mounting plane, the rebound top surface can play the role of a guiding inclined surface, making it easier to install. Therefore, the present invention is not only convenient to install, but also has high assembly stability.

[0023] 5. In a buckle structure of a side enclosure outer cover plate of the present invention, the side enclosure of the insertion part is connected to the side of the anti-mistake boss, and the top surface of the anti-mistake boss is connected to the bottom surface of the assembly part. At the same time, an anti-mistake opening communicating with the installation through hole is provided on the installation plane, and the anti-mistake opening is correspondingly inserted and matched with the anti-mistake boss. When used, the insertion and matching between the anti-mistake boss and the anti-mistake opening can avoid the phenomenon of reverse or wrong installation when assembling parts, thereby improving assembly efficiency. Therefore, the assembly efficiency of the present invention is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the external latch in the present invention.

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the bottom card seat of the present invention.

[0027] Figure 4 It is a structural schematic diagram of the card-joined window in the bottom card seat.

[0028] Figure 5 It is a schematic diagram of the structure of the rebound block in the bottom holder.

[0029] Figure 6 It is a top view of the installation plane in the present invention.

[0030] Figure 7 It is an assembly schematic diagram of the present invention.

[0031] In the figure: a snap-on mounting support 1, an outer plug pin 2, a check head 21, a bottom card seat 3, a plug column hole 31, an upper pin column hole 311, a lower pin column hole 312, a column hole top opening 32, a column hole bottom opening 33, a mounting plane 4, a mounting through hole 41, an anti-misalignment opening 42, an assembly portion 5, an assembly left end portion 51, an assembly middle portion 52, an assembly right end portion 53, an upper inclined surface 531, a lower vertical surface 532, an insertion portion 6, an outer connecting portion 7, an outer middle column 71, an outer upper plate 72, an outer lower plate 73, an outer ring groove 74, an outer column cavity 75, an inner pin rod 8, an upper column rod 81, a middle bearing rod 82, a lower column rod 83, a snap-on window 9, a fixing plate 91, a rebound block 92, a rebound top surface 921, a rebound outer side surface 922, a rebound inner side surface 923, a rebound groove 93, and an anti-misalignment boss 10. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] See also Figure 1 — Figure 7 , a side outer cover buckle structure, comprising an outer plug pin 2 and a bottom card seat 3 connected to each other, wherein the bottom card seat 3 is connected to a mounting plane 4;

[0034] The mounting plane 4 is an inclined plane, and a mounting through hole 41 is provided on the mounting plane 4; the bottom card seat 3 includes a mounting portion 5 and an insertion portion 6, one end of the insertion portion 6 is coaxially connected to the bottom surface of the mounting portion 5, and the other end of the insertion portion 6 extends to the bottom of the mounting plane 4 after passing through the mounting through hole 41, and the bottom surface of the mounting portion 5 around the intersection of the mounting portion 5 and the insertion portion 6 is in contact with the mounting plane 4; the inside of the mounting portion 5 and the insertion portion 6 are jointly provided with a same through-going latch column hole 31, and the top and bottom openings of the latch column hole 31 are respectively a column hole top opening 32 and a column hole bottom opening 33;

[0035] The external plug pin 2 includes an external connection part 7, an internal pin rod 8 and a check ring 21, one end of the internal pin rod 8 is connected to the external connection part 7, and the other end of the internal pin rod 8 is connected to the check ring 21 after passing through the top opening 32 of the column hole and the bottom opening 33 of the column hole in sequence, and the widths of the top opening 32 of the column hole, the internal pin rod 8, the check ring 21 and the bottom opening 33 of the column hole are reduced in sequence, and the portion of the external connection part 7 surrounding the intersection of the external connection part 7 and the internal pin rod 8 is in contact with the top surface of the assembly part 5, and the top surface of the assembly part 5 is a horizontal surface or an inclined surface.

[0036] The assembly portion 5 includes an assembly left end portion 51, an assembly middle portion 52 and an assembly right end portion 53. The right side surface of the assembly left end portion 51 is connected to the left side surface of the assembly right end portion 53 via the assembly middle portion 52. The right side surface of the assembly right end portion 53 includes an upper inclined surface 531 and a lower vertical surface 532. The top end of the upper inclined surface 531 is connected to the top surface of the assembly portion 5, and the bottom end of the lower vertical surface 532 is connected to the bottom surface of the assembly portion 5.

[0037] The top surface of the assembly middle portion 52 is the top surface of the assembly portion 5 , and the bottom surfaces of the assembly left end portion 51 , the assembly middle portion 52 , and the assembly right end portion 53 are connected in sequence to form the bottom surface of the assembly portion 5 , and the bottom end of the assembly left end portion 51 is higher than the bottom end of the assembly right end portion 53 .

[0038] The inner pin rod 8 includes an upper column rod 81, a middle supporting rod 82 and a lower column rod 83. The top end of the upper column rod 81 is connected to the bottom surface of the external connection part 7, and the bottom end of the upper column rod 81 is connected to the middle part of the top end of the check head 21 through the middle supporting rod 82 and the lower column rod 83 in sequence. The top end of the check head 21 is in contact with the bottom surface of the insertion part 6 around the junction of the check head 21 and the lower column rod 83; the diameter of the upper column rod 81 is larger than the diameter of the lower column rod 83, and the top end of the middle supporting rod 82 is wider than its bottom end.

[0039] The upper column rod 81 and the lower column rod 83 are both cylindrical structures, the middle support rod 82 is a truncated cone structure that is wide at the top and narrow at the bottom, and the cross section of the check valve 21 is a triangle that is wide at the top and narrow at the bottom.

[0040] The latch post hole 31 includes an upper pin post hole 311 and a lower pin post hole 312. The top opening 32 of the post hole is connected with the bottom opening 33 of the post hole through the upper pin post hole 311 and the lower pin post hole 312 in sequence. The upper pin post hole 311 is a cylindrical structure, and the lower pin post hole 312 is a truncated cone structure that is wide at the top and narrow at the bottom. The intersection of the upper pin post hole 311 and the lower pin post hole 312 is set lower than the intersection of the middle supporting rod 82 and the lower column rod 83.

[0041] The outer connecting portion 7 includes an outer middle column 71 and an outer upper flat plate 72 and an outer lower flat plate 73 vertically connected to its two ends, and the widths of the outer middle column 71, the outer upper flat plate 72 and the outer lower flat plate 73 increase successively; the bottom surface of the outer lower flat plate 73 is in contact with the top surface of the assembly portion 5, and the side circumference of the outer middle column 71 and the bottom surface of the outer upper flat plate 72 and the top surface of the outer lower flat plate 73 together form an outer ring groove 74.

[0042] An outer column cavity 75 is formed inside the outer upper plate 72 , the outer middle column 71 , and the outer lower plate 73 .

[0043] A left-right symmetrical snap-in window 9 is provided on the side of the insertion portion 6, and the bottom edge of the snap-in window 9 is connected to the bottom end of the rebound block 92 via a fixing plate 91. The top end of the rebound block 92 is lower than the top of the snap-in window 9. Rebound grooves 93 are formed between the left and right sides of the rebound block 92 and the left and right sides of the snap-in window 9, and the top end of the rebound block 92 is wider than the bottom end of the rebound block 92.

[0044] The rebound block 92 includes a rebound top surface 921, a rebound outer surface 922 and a rebound inner surface 923. The rebound inner surface 923 is flush with the inner surface of the fixed plate 91. A mounting plane 4 is sandwiched between the rebound top surface 921 and the bottom surface of the assembly portion 5. The top end of the rebound outer surface 922 protrudes outward relative to its bottom end.

[0045] The side periphery of the insertion portion 6 is connected to the side of the anti-error boss 10, the top surface of the anti-error boss 10 is connected to the bottom surface of the assembly portion 5, and the installation plane 4 is provided with an anti-error opening 42 which is connected to the installation through hole 41, and the anti-error opening 42 is correspondingly inserted and matched with the anti-error boss 10.

[0046] The principle of the present invention is described as follows:

[0047] The present invention is applicable to the working condition when the mounting plane 4 is an inclined plane, more precisely, the working condition when the mounting plane 4 is inclined relative to the top surface of the assembly portion 5, and further, the working condition when the mounting plane 4 is not parallel to the top surface of the assembly portion 5.

[0048] In the present invention, the top of the outer pin 2 is preferably connected to the snap-on mounting bracket 1. At this time, the mounting plane 4 is a sheet metal surface. On this basis, when an outer ring groove 74 is provided in the outer pin 2, the snap-on mounting bracket 1 is snap-connected with the outer ring groove 74.

[0049] In the present invention, an outer column cavity 75 is provided inside the outer plug pin 2 to prevent shrinkage marks from being generated on the surface of the part and affecting the dimensional accuracy of the part.

[0050] Embodiment 1:

[0051] See also Figure 1 — Figure 7A buckle structure of a side outer cover plate, comprising an outer plug pin 2 and a bottom card seat 3 connected to each other, wherein the bottom card seat 3 is connected to a mounting plane 4; the mounting plane 4 is an inclined plane, and a mounting through hole 41 is provided on the mounting plane 4; the bottom card seat 3 comprises an assembly part 5 and an insertion part 6, one end of the insertion part 6 is coaxially connected to the bottom surface of the assembly part 5, and the other end of the insertion part 6 extends to the bottom of the mounting plane 4 after passing through the mounting through hole 41, and the bottom surface of the assembly part 5 around the intersection of the assembly part 5 and the insertion part 6 is in contact with the mounting plane 4; the assembly part 5 and the insertion part 6 are provided with the same inner part The pin column hole 31 passes through, and the top and bottom openings of the pin column hole 31 are the column hole top opening 32 and the column hole bottom opening 33 respectively; the external pin 2 includes an external connecting portion 7, an internal pin rod 8 and a check head 21, one end of the internal pin rod 8 is connected to the external connecting portion 7, and the other end of the internal pin rod 8 is connected to the check head 21 after passing through the column hole top opening 32 and the column hole bottom opening 33 in sequence, and the widths of the column hole top opening 32, the internal pin rod 8, the check head 21, and the column hole bottom opening 33 are reduced in sequence, and the portion of the external connecting portion 7 around the intersection of the external connecting portion 7 and the internal pin rod 8 is in contact with the top surface of the assembly portion 5, and the top surface of the assembly portion 5 is a horizontal surface or an inclined surface.

[0052] Embodiment 2:

[0053] The basic content is the same as that of Example 1, except that:

[0054] The assembly portion 5 includes an assembly left end portion 51, an assembly middle portion 52 and an assembly right end portion 53. The right side surface of the assembly left end portion 51 is connected to the left side surface of the assembly right end portion 53 via the assembly middle portion 52. The right side surface of the assembly right end portion 53 includes an upper inclined surface 531 and a lower vertical surface 532. The top end of the upper inclined surface 531 is connected to the top surface of the assembly portion 5, and the bottom end of the lower vertical surface 532 is connected to the bottom surface of the assembly portion 5. The top surface of the assembly middle portion 52 is the top surface of the assembly portion 5. The bottom surfaces of the assembly left end portion 51, the assembly middle portion 52 and the assembly right end portion 53 are connected in sequence to form the bottom surface of the assembly portion 5, and the bottom end of the assembly left end portion 51 is higher than the bottom end of the assembly right end portion 53.

[0055] Embodiment 3:

[0056] The basic content is the same as that of Example 1, except that:

[0057] The inner pin rod 8 includes an upper column rod 81, a middle support rod 82 and a lower column rod 83. The top end of the upper column rod 81 is connected to the bottom surface of the outer connecting part 7, and the bottom end of the upper column rod 81 is connected to the middle part of the top end of the check head 21 through the middle support rod 82 and the lower column rod 83 in sequence. The top end of the check head 21 is in contact with the bottom surface of the insertion part 6 around the intersection of the check head 21 and the lower column rod 83; the diameter of the upper column rod 81 is larger than the diameter of the lower column rod 83, and the top end of the middle support rod 82 is wider than its bottom end. Preferably, the upper column rod 81 and the lower column rod 83 are both cylindrical structures, the middle support rod 82 is a truncated cone structure that is wide at the top and narrow at the bottom, and the cross section of the check head 21 is a triangle that is wide at the top and narrow at the bottom.

[0058] Embodiment 4:

[0059] The basic content is the same as that of Example 1, except that:

[0060] A left-right symmetrical snap-in window 9 is provided on the side periphery of the insertion portion 6, the bottom edge of the snap-in window 9 is connected to the bottom end of the rebound block 92 via a fixing plate 91, the top end of the rebound block 92 is lower than the top of the snap-in window 9, and a rebound groove 93 is formed between the left and right sides of the rebound block 92 and the left and right sides of the snap-in window 9, and the top end of the rebound block 92 is wider than the bottom end of the rebound block 92. The rebound block 92 includes a rebound top surface 921, a rebound outer side surface 922 and a rebound inner side surface 923, the rebound inner side surface 923 is flush with the inner side surface of the fixing plate 91, a mounting plane 4 is sandwiched between the rebound top surface 921 and the bottom surface of the assembly portion 5, and the top end of the rebound outer side surface 922 protrudes outward relative to its bottom end.

[0061] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. A side outer cover buckle structure, comprising an outer plug pin (2) and a bottom clamping seat (3) connected to each other, wherein the bottom clamping seat (3) is connected to a mounting plane (4), characterized in that: The mounting plane (4) is an inclined plane, and a mounting through hole (41) is provided on the mounting plane (4); the bottom card seat (3) comprises an assembly portion (5) and an insertion portion (6), one end of the insertion portion (6) is coaxially connected to the bottom surface of the assembly portion (5), and the other end of the insertion portion (6) extends to the bottom of the mounting plane (4) after passing through the mounting through hole (41), and the bottom surface of the assembly portion (5) is in contact with the mounting plane (4) around the junction of the assembly portion (5) and the insertion portion (6); the assembly portion (5) and the insertion portion (6) are provided with a common through-going latch column hole (31), and the top and bottom openings of the latch column hole (31) are respectively a column hole top opening (32) and a column hole bottom opening (33); The external plug pin (2) comprises an external connection part (7), an internal pin rod (8) and a check head (21), one end of the internal pin rod (8) is connected to the external connection part (7), and the other end of the internal pin rod (8) passes through the top opening (32) of the column hole and the bottom opening (33) of the column hole in sequence and is connected to the check head (21), and the widths of the top opening (32) of the column hole, the internal pin rod (8), the check head (21) and the bottom opening (33) of the column hole are successively reduced, and a portion of the external connection part (7) surrounding the intersection of the external connection part (7) and the internal pin rod (8) is in contact with the top surface of the assembly part (5), and the top surface of the assembly part (5) is a horizontal surface or an inclined surface; A left-right symmetrical snap-in window (9) is provided on the side of the insertion portion (6); the bottom edge of the snap-in window (9) is connected to the bottom end of the rebound block (92) via a fixing plate (91); the top end of the rebound block (92) is lower than the top end of the snap-in window (9); a rebound groove (93) is formed between the left and right sides of the rebound block (92) and the left and right sides of the snap-in window (9); and the top end of the rebound block (92) is wider than the bottom end of the rebound block (92); The rebound block (92) comprises a rebound top surface (921), a rebound outer side surface (922) and a rebound inner side surface (923); the rebound inner side surface (923) is flush with the inner side surface of the fixing plate (91); a mounting plane (4) is sandwiched between the rebound top surface (921) and the bottom surface of the assembly portion (5); and the top end of the rebound outer side surface (922) protrudes outward relative to the bottom end thereof; The side periphery of the insertion portion (6) is connected to the side of the anti-error boss (10), the top surface of the anti-error boss (10) is connected to the bottom surface of the assembly portion (5), and the installation plane (4) is provided with an anti-error opening (42) that communicates with the installation through hole (41), and the anti-error opening (42) is correspondingly inserted and matched with the anti-error boss (10).

2. The side panel outer cover buckle structure according to claim 1, characterized in that: The assembly portion (5) comprises an assembly left end portion (51), an assembly middle portion (52) and an assembly right end portion (53); the right side surface of the assembly left end portion (51) is connected to the left side surface of the assembly right end portion (53) via the assembly middle portion (52); the right side surface of the assembly right end portion (53) comprises an upper inclined surface (531) and a lower vertical surface (532); the top end of the upper inclined surface (531) is connected to the top surface of the assembly portion (5), and the bottom end of the lower vertical surface (532) is connected to the bottom surface of the assembly portion (5); The top surface of the assembly middle portion (52) is the top surface of the assembly portion (5), and the bottom surfaces of the assembly left end portion (51), the assembly middle portion (52), and the assembly right end portion (53) are sequentially connected to form the bottom surface of the assembly portion (5), and the bottom end of the assembly left end portion (51) is higher than the bottom end of the assembly right end portion (53).

3. A side panel outer cover buckle structure according to claim 1 or 2, characterized in that: The inner pin rod (8) comprises an upper column rod (81), a middle support rod (82) and a lower column rod (83); the top end of the upper column rod (81) is connected to the bottom surface of the outer connecting part (7); the bottom end of the upper column rod (81) is connected to the middle part of the top end of the check valve (21) through the middle support rod (82) and the lower column rod (83) in sequence; the top end of the check valve (21) around the junction of the check valve (21) and the lower column rod (83) contacts the bottom surface of the insertion part (6); the diameter of the upper column rod (81) is larger than the diameter of the lower column rod (83); the top end of the middle support rod (82) is wider than its bottom end.

4. The side panel outer cover buckle structure according to claim 3, characterized in that: The upper column rod (81) and the lower column rod (83) are both cylindrical structures, the middle support rod (82) is a truncated cone structure that is wide at the top and narrow at the bottom, and the cross section of the check valve (21) is a triangle that is wide at the top and narrow at the bottom.

5. The side panel outer cover buckle structure according to claim 3, characterized in that: The latch post hole (31) comprises an upper pin post hole (311) and a lower pin post hole (312); the post hole top opening (32) is connected to the post hole bottom opening (33) via the upper pin post hole (311) and the lower pin post hole (312) in sequence; the upper pin post hole (311) is a cylindrical structure; the lower pin post hole (312) is a truncated cone structure that is wide at the top and narrow at the bottom; the intersection of the upper pin post hole (311) and the lower pin post hole (312) is arranged lower than the intersection of the middle support rod (82) and the lower post rod (83).

6. A side panel outer cover buckle structure according to claim 1 or 2, characterized in that: The outer connecting portion (7) comprises an outer middle column (71) and an outer upper flat plate (72) and an outer lower flat plate (73) vertically connected at both ends thereof, and the widths of the outer middle column (71), the outer upper flat plate (72) and the outer lower flat plate (73) increase in sequence; the bottom surface of the outer lower flat plate (73) is in contact with the top surface of the assembly portion (5), and the side circumference of the outer middle column (71) and the bottom surface of the outer upper flat plate (72) and the top surface of the outer lower flat plate (73) together form an outer ring groove (74).

7. The side panel outer cover buckle structure according to claim 6, characterized in that: An outer column cavity (75) is commonly formed inside the outer upper plate (72), the outer middle column (71), and the outer lower plate (73).

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