CN220842164U - Connecting piece and foldable cover plate - Google Patents

Abstract

The application provides a connecting piece and a foldable cover plate. The connecting piece includes the connecting piece body, and sets firmly in the joint portion of connecting piece body, and joint portion is used for inserting the joint downthehole of section bar, and joint portion includes the joint post, buckles and connect in two first buckling columns of joint post opposite both sides to and buckle and connect in the second of every first buckling column deviating from the joint post and buckle the post, two second buckling columns are close to each other and set up. The clamping part comprises a plurality of parts, such as clamping posts, two first bending posts and a second bending post. The clamping part can be bent twice, so that the area of the clamping part can be increased, and the clamping effect with the profile can be improved. The clamping direction can be increased by bending, and the clamping effect is further improved. And the two second bending columns are mutually close to each other and arranged so as to reduce the overall size of the clamping part, thereby realizing miniaturization of the clamping part and the connecting piece.

Description

Connecting piece and foldable cover plate

Technical Field

The application belongs to the technical field of tail box covers of mobile devices, and particularly relates to a connecting piece and a foldable cover plate.

Background

A pick-up or the like has a boot for carrying a wide variety of items such as food, various equipment, materials, and the like. Because the trunk is of an upper opening structure, articles in the trunk are easily influenced by environmental factors such as rain, dust and the like, and the articles are unsafe and are easy to steal. Therefore, a trunk cover is often adopted at present to cover the upper opening of the trunk. At present, the trunk cover generally comprises a connecting piece for clamping the section bar, but the clamping effect of the connecting piece and the section bar is poor.

Disclosure of utility model

In view of this, the first aspect of the present application provides a connecting piece, the connecting piece includes a connecting piece body and a clamping portion fixedly disposed on the connecting piece body, the clamping portion is configured to be inserted into a clamping hole of a profile, the clamping portion includes a clamping post, two first bending posts connected to opposite sides of the clamping post in a bending manner, and two second bending posts connected to each of the first bending posts in a bending manner, wherein the two second bending posts are disposed close to each other.

According to the connecting piece provided by the first aspect of the application, the clamping part is fixedly arranged on the connecting piece body, and the subsequent clamping part can be used for clamping in the clamping hole of the section bar. The clamping portion comprises a plurality of parts, such as clamping columns, two first bending columns connected to two opposite sides of the clamping columns in a bending mode, and two second bending columns connected to the first bending columns in a bending mode and deviating from the clamping columns. The above-mentioned content can also be understood that the area of the clamping portion can be increased by bending the clamping portion twice, so as to improve the clamping effect with the profile. The clamping direction can be increased by bending, and the clamping effect is further improved. And the two second bending columns are mutually close to each other and arranged so as to reduce the overall size of the clamping part, thereby realizing miniaturization of the clamping part and the connecting piece.

The shape and the size of the clamping part are used for being adapted to the shape and the size of the clamping hole.

The connecting piece body is provided with a through hole, the through hole penetrates through one side of the connecting piece body, which is provided with the clamping part, and one side of the connecting piece body, which is opposite to the clamping part, the through hole is used for enabling a fastener to pass through and be in fastening fit with a fixing piece of the section bar, and the through hole is formed in a space formed by encircling the clamping column, the first bending column and the second bending column.

The connecting piece body comprises a first side, a second side, a third side and a fourth side, wherein the first side and the second side are oppositely arranged, the third side and the fourth side are oppositely arranged between the first side and the second side, the first side is bent and connected with the third side, the clamping parts are arranged on the first side and the third side, the second side is bent and connected with the fourth side, and the through holes are formed in the second side and the fourth side.

Wherein, the connecting piece body is used for setting up the diapire of bolster and is equipped with dodges the groove, two the through-hole is axisymmetric setting.

The connecting piece is used for enabling one fastening piece to be in fastening fit with a fixing piece of the profile through one through hole, and the end part of one fastening piece is arranged in the avoidance groove; the connecting piece is also used for enabling the other fastening piece to be in fastening fit with the fixing piece of the other section bar through the other through hole, and the end part of the other fastening piece is arranged in the avoidance groove.

The through hole is formed in the first portion, the through hole is formed in the second portion, and the through hole is formed in the second portion.

Wherein, the pore wall of through-hole is equipped with the spacing groove.

A second aspect of the present application provides a foldable cover for mounting to a trunk of a mobile device to conceal an opening of the trunk, the foldable cover comprising a plurality of cover plates rotatably connected, a profile, and a connector provided in the first aspect of the present application, a periphery of the cover plates being fixed to a connector body of the profile and the connector, and a clamping portion of the connector being clamped to a clamping hole of the profile.

According to the foldable cover plate provided by the second aspect of the application, the clamping effect of the connecting piece and the sectional material can be improved by adopting the connecting piece provided by the first aspect of the application.

The connecting pieces are arranged in an axisymmetric mode, and the connecting pieces are close to the driving cab of the moving device.

Drawings

In order to more clearly explain the technical solutions in the embodiments of the present application, the drawings that are used in the embodiments of the present application will be described below.

Fig. 1 is a schematic perspective view of a connector according to an embodiment of the application.

Fig. 2 is a schematic perspective view of another view of the connector shown in fig. 1.

Fig. 3 is a front view of the connector shown in fig. 1.

Fig. 4 is a schematic view of the fitting of the connecting piece and the profile according to an embodiment of the present application.

Fig. 5 is a front view of a profile in one embodiment of the application.

Fig. 6 is a bottom view of a connector according to an embodiment of the present application.

Fig. 7 is a schematic view of the coupling member of fig. 6 mated with two fasteners.

Fig. 8 is a schematic view illustrating the fitting of the foldable cover plate when applied to a mobile device according to an embodiment of the application.

Fig. 9 is a schematic perspective view of a foldable cover according to an embodiment of the application.

Fig. 10 is a schematic perspective view of the foldable cover shown in fig. 9 from another perspective.

Fig. 11 is a schematic perspective view of the foldable cover shown in fig. 9 after being turned once.

Fig. 12 is a schematic perspective view of the foldable cover shown in fig. 9 after being folded twice.

Fig. 13 is a partial schematic structural view of the foldable cover plate shown in fig. 9.

Description of the reference numerals:

The novel folding type automobile seat comprises a connecting piece-1, a section bar-2, a clamping hole-2 a, a fixing piece-2 b, a fastener-3, a cover plate-4, a foldable cover plate-5, a moving device-6, a tail box-6 a, a driving cab-6 b, a connecting piece body-10, a through hole-100, a limit groove-1010, a first side-101, a second side-102, a third side-103, a fourth side-104, a containing groove-11, a bottom wall-12, an avoidance groove-13, a first part-131, a second part-132, a buffer piece-14, a clamping part-20, a clamping column-21, a first bending column-22 and a second bending column-23.

Detailed Description

The following are preferred embodiments of the present application, and it should be noted that modifications and variations can be made by those skilled in the art without departing from the principle of the present application, and these modifications and variations are also considered as the protection scope of the present application.

Referring to fig. 1-5 together, fig. 1 is a schematic perspective view of a connector according to an embodiment of the application. Fig. 2 is a schematic perspective view of another view of the connector shown in fig. 1. Fig. 3 is a front view of the connector shown in fig. 1. Fig. 4 is a schematic view of the fitting of the connecting piece and the profile according to an embodiment of the present application. Fig. 5 is a front view of a profile in one embodiment of the application. The embodiment provides a connecting piece 1, connecting piece 1 includes connecting piece body 10 and set firmly in joint portion 20 of connecting piece body 10, joint portion 20 is used for inserting in the joint hole 2a of section bar 2, joint portion 20 include joint post 21, buckle connect in two first buckling post 22 of joint post 21 opposite both sides, and buckle connect in every first buckling post 22 deviates from the second buckling post 23 of joint post 21, two second buckling post 23 are close to each other and set up.

The connecting piece 1 is a part for connecting other parts, such as a profile 2, and both the connecting piece 1 and the profile 2 can be used for connecting a cover plate 4. The section bar 2 is used for wrapping the side edges of the cover plate 4, and the connecting piece 1 is used for wrapping the edges of the corners of the cover plate 4 so as to fully wrap the edges of the cover plate 4. The connecting piece 1 comprises a connecting piece body 10 and a clamping part 20 which are used at different purposes, wherein the connecting piece body 10 is mainly used for comprising the periphery of the corner of the cover plate 4, the clamping part 20 is arranged on at least one side surface of the connecting piece body 10, and the clamping part 20 is used for being inserted into a clamping hole 2a of the section bar 2 to realize the clamping of the connecting piece 1 and the section bar 2. Alternatively, the connector body 10 and the clamping portion 20 are integrally formed or separately formed, and the present embodiment is only schematically illustrated with the connector body 10 and the clamping portion 20 integrally formed. Further alternatively, the material of the connecting member 1 includes, but is not limited to, plastic, carbon fiber, aluminum alloy, magnesium alloy, and the like.

The clamping portion 20 provided in this embodiment is composed of three parts: the clamping column 21, the first bending column 22 and the second bending column 23. The clamping columns 21 are straight, and the number of the first bending columns 22 and the second bending columns 23 is two. The two first bending columns 22 are connected to opposite sides of the clamping column 21 in a bending manner, and the second bending column 23 is connected to one side of each first bending column 22, which faces away from the clamping column 21. Optionally, the angle between the first bending post 22 and the clamping post 21 is not less than 90 °, and the angle between the first bending post 22 and the second bending post 23 is not more than 90 °. The above description is also understood to be that the shape of the whole of the engaging portion 20 is not flat, but is a bent shape obtained by bending twice. The bent clamping portion 20 can firstly increase the clamping size and clamping area of the clamping portion 20, and when the clamping portion 20 is inserted into the clamping hole 2a of the profile 2, the clamping portion 20 and the clamping portion 20 of the clamping hole 2a can be increased, so that the clamping effect is improved. Secondly, because the direction of the clamping part 20 can be changed by bending, the clamping direction can be increased, more degrees of freedom between the limiting connecting piece 1 and the profile 2 can be increased, and the clamping effect can be further improved. In addition, in the present embodiment, the two second bending columns 23 are disposed close to each other, instead of separating the two second bending columns 23 from each other, so that the overall size of the clamping portion 20 can be reduced, and the overall size of the connecting piece 1 and the profile 2 can be reduced, thereby realizing miniaturization of the clamping portion 20 and the profile 2.

Referring to fig. 3 and 5 again, in the present embodiment, the shape and size of the clamping portion 20 are adapted to the shape and size of the clamping hole 2 a. As is clear from the above, designing the engaging portion 20 in a shape of two bends can improve the engaging effect. In this embodiment, the shape and size of the clamping portion 20 may be adapted to the shape and size of the clamping hole 2a, in other words, the shape of the clamping hole 2a is correspondingly designed to be a shape that is bent twice, so as to further improve the clamping effect of the connecting piece 1 and the profile 2. Besides the shape, the size of the clamping portion 20 can be adapted to the size of the clamping hole 2a, and the size of the clamping post 21, the size of the first bending post 22 and the size of the second bending post 23 are respectively adapted to the hole wall size of the clamping hole 2a, so as to further improve the clamping effect. Alternatively, the clamping post 21, the first bending post 22, and the second bending post 23 of the clamping portion 20 may abut against the hole wall of the clamping hole 2 a.

Referring to fig. 2-3 again, in this embodiment, the connector body 10 is provided with a through hole 100, the through hole 100 penetrates through the connector body 10 to set one side of the clamping portion 20 and one side of the connector body 10 opposite to the clamping portion 20, the through hole 100 is used for allowing the fastener 3 to pass through and be fastened with the fixing member 2b of the profile 2, and the through hole 100 is disposed in a space defined by the clamping post 21, the first bending post 22 and the second bending post 23.

The connecting piece 1 is provided with through holes 100 penetrating through two opposite sides of the connecting piece 1, specifically, the through holes 100 penetrate through one side of the connecting piece body 10 where the clamping portion 20 is arranged, and one side of the connecting piece body 10 where the clamping portion 20 is arranged opposite to each other, that is, the through holes 100 penetrate through the surface of the connecting piece body 10 where the clamping portion 20 is arranged and the opposite surface thereof. The through holes 100 are used for passing the fasteners 3 and for fastening engagement with the fixing elements 2b of the profile 2. In other words, the engagement portion 20 of the connecting member 1 cooperates with the engagement hole 2a to achieve the effect of positioning the engagement, and the connecting member 1 and the profile 2 do not rely on the engagement post 21 to achieve the fixing effect with the engagement hole 2 a. After the connecting piece 1 and the section bar 2 are clamped with the clamping hole 2a by the clamping column 21, the through hole 100 can be aligned with the fixing piece 2b in the clamping hole 2a of the section bar 2. The fastener 3 is then threaded from the opposite side of the connector body 10 where the clamping portion 20 is provided, and is threaded from the opposite side of the connector body 10 where the clamping portion 20 is provided so as to be in tight engagement with the fixing member 2b, thereby achieving the fixation of the connector 1 and the profile 2.

Optionally, the fastening means 3 comprise, but are not limited to, screws provided with fastening holes on the fastening piece 2b of the profile 2, the screws being screwed with the fastening piece 2b through the fastening holes.

In addition, in the present embodiment, the through hole 100 on the side of the connector body 10 where the locking portion 20 is provided may be provided in a space defined by the locking post 21, the first bending post 22, and the second bending post 23, in other words, the through hole 100 may be surrounded by the locking portion 20, so that other space of the connector 1 may not be occupied, and the size of the connector 1 may be reduced. And each part of the connecting part can also play a role in limiting and guiding the fastener 3.

Referring to fig. 1-2 again, in the present embodiment, the connector body 10 includes a first side 101 and a second side 102 disposed opposite to each other, and a third side 103 and a fourth side 104 disposed opposite to each other between the first side 101 and the second side 102, the first side 101 is bent to connect to the third side 103, the first side 101 and the third side 103 are both provided with the clamping portion 20, the second side 102 is bent to connect to the fourth side 104, and the second side 102 and the fourth side 104 are both provided with the through hole 100.

The connector body 10 includes a first side 101 and a second side 102, and a third side 103 and a fourth side 104, which are disposed opposite to each other, wherein the first side 101 is bent to connect the third side 103, and the second side 102 is bent to connect the fourth side 104. In other words the shape of the connection 1 along the circumference of the connection 1 is square or square-like. And the four sides of the connecting piece 1 are a first side 101, a third side 103, a second side 102 and a fourth side 104 in sequence. From the above, it can be seen that the connector 1 is used for wrapping the periphery of the corner of the cover plate 4, and the first side 101 and the third side 103 are close to the cover plate 4, so that the first side 101 and the third side 103 may be provided with the accommodating groove 11 for accommodating and wrapping the periphery of the cover plate 4. And the connecting piece 1 can be connected with not only the profile 2 on one side of the cover plate 4, but also two profiles 2 on the adjacent side of the cover plate 4. Thus, in this embodiment, the first side 101 and the third side 103 may be provided with the engaging portion 20, the engaging portion 20 on one side is used for engaging with the profile 2 on one side of the cover 4, and the engaging portion 20 on the third side 103 is used for engaging with the profile 2 on the other side of the cover 4.

In addition, in the present embodiment, through holes 100 may be formed on the second side 102 and the fourth side 104, and the connecting piece 1 and the two profiles 2 may be fixed by two fasteners 3. For example, one fastener 3 secures the profile 2 of the first side 101 to the connector 1 through the through hole 100 of the second side 102, and the other fastener 3 secures the profile 2 of the third side 103 to the connector 1 through the through hole 100 of the fourth side 104, thereby securing the connector 1 to the plurality of profiles 2.

Optionally, after the fastener 3 is fastened to the fixing member 2b, a sealing member may be further disposed at the opening of the through hole 100 to seal the opening of the through hole 100, so as to prevent impurities such as water and dust from entering the through hole 100.

Referring to fig. 2, fig. 5-fig. 7, fig. 6 is a bottom view of the connector according to an embodiment of the application. Fig. 7 is a schematic view of the coupling member of fig. 6 mated with two fasteners. In this embodiment, the bottom wall 12 of the connector body 10 for disposing the buffer member 14 (as shown in fig. 10) is provided with a relief groove 13, and the two through holes 100 are disposed in an axisymmetric manner. When the connector 1 is subsequently applied to the foldable cover 5 and arranged in the trunk 6a, the side of the connector 1 close to the trunk 6a when the foldable cover 5 is unfolded is the bottom wall 12, and the side facing away from the trunk 6a is the top wall. In other words, the buffer member 14 is disposed on the connecting member 1 and buffers the tail box 6a, so that the side where the buffer member 14 is disposed is the bottom wall 12. In this embodiment, the bottom wall 12 may be provided with the escape grooves 13 so that the two through holes 100 are axially symmetrically arranged. The fact that the two through holes 100 are axially symmetrically arranged is understood to mean that the two through holes 100 are at the same height and at the same distance from the bending position of the second side 102 and the fourth side 104, i.e. that the two through holes 100 are axially symmetrically arranged along the bending position of the second side 102 and the fourth side 104. The arrangement of the avoidance groove 13 not only can reduce the weight of the connecting piece 1 and facilitate the arrangement of the subsequent buffer piece 14, but also can enable the two through holes 100 to be axisymmetrically arranged, thereby not only improving the appearance effect of the connecting piece 1, but also avoiding the interference of the two fastening pieces 3 in the fastening process.

In this embodiment, the connecting piece 1 is used to fasten and match one fastening piece 3 with a fixing piece 2b of one section bar 2 through one through hole 100, and the end of one fastening piece 3 is disposed in the avoidance groove 13; the connecting piece 1 is also used for enabling the other fastening piece 3 to be in fastening fit with the fixing piece 2b of the other section bar 2 through the other through hole 100, and the end part of the other fastening piece 3 is arranged in the avoidance groove 13.

In other words, the two fasteners 3 are inserted into the two through holes 100 at the same time, but are inserted into the through holes 100, respectively. And the ends of the two fasteners 3 are not located outside the connector 1. Such that when a fastener 3 is inserted into the through-hole 100 and is in tight engagement with the fixing member 2b of one of the profiles 2, the end of one of the fasteners 3 is disposed in the escape groove 13. So that the other fastener 3 is inserted into the other through hole 100 without being interfered by the previous fastener 3. And the end of the other fastening member 3 is also disposed in the escape groove 13.

Further, in this embodiment, the relief groove 13 includes a first portion 131 axially disposed along one through hole 100, and a second portion 132 axially disposed along the other through hole 100, where the first portion 131 communicates with the second portion 132, one end of the fastener 3 is disposed in the first portion 131, and the other end of the fastener 3 is disposed in the second portion 132. The shape of the avoidance groove 13 is a bent shape, and the end of one fastening piece 3 is arranged in the first portion 131, so that when the other fastening piece 3 enters the second portion 132 through the other through hole 100, the other fastening piece 3 is not affected by the previous fastening piece 3 positioned in the first portion 131, and further interference of the two fastening pieces 3 is prevented.

Referring to fig. 3 again, in the present embodiment, a limiting groove 1010 is formed on the wall of the through hole 100. A sealing member (such as a rubber plug) can be arranged in the through hole 100 to block the through hole 100, so that the through hole 100 can be sealed, protected and prevented from flowing into the through hole 100, and the appearance effect can be improved. The limiting groove 1010 arranged along the axial direction of the through hole 100 is formed in the wall of the through hole 100 and can be matched with the limiting column on the sealing element, so that the functions of rotation stopping and positioning are achieved.

Referring to fig. 8-13 together, fig. 8 is a schematic diagram illustrating the fitting of the foldable cover plate to the mobile device according to an embodiment of the application. Fig. 9 is a schematic perspective view of a foldable cover according to an embodiment of the application. Fig. 10 is a schematic perspective view of the foldable cover shown in fig. 9 from another perspective. Fig. 11 is a schematic perspective view of the foldable cover shown in fig. 9 after being turned once. Fig. 12 is a schematic perspective view of the foldable cover shown in fig. 9 after being folded twice. Fig. 13 is a partial schematic structural view of the foldable cover plate shown in fig. 9. The present embodiment provides a foldable cover 5 for being mounted to a trunk 6a of a mobile device 6 to block an opening of the trunk 6a, the foldable cover 5 includes a plurality of cover plates 4 rotatably connected, a profile 2, and a connector 1 provided in the foregoing embodiment of the present application, a periphery of the cover plates 4 is fixed to a connector body 10 of the profile 2 and the connector 1, and a clamping portion 20 of the connector 1 is clamped to a clamping hole 2a of the profile 2.

The mobile device 6 includes, but is not limited to, a pick-up, truck, van, snowmobile, or the like, vehicle having an open boot 6 a. The foldable cover plate 5 can be arranged on the side wall of the tail box 6a, so that the opening of the tail box 6a can be shielded when the foldable cover plate 5 is unfolded, and therefore articles in the tail box 6a can be effectively protected. The foldable cover 5 comprises a plurality of cover plates 4, connecting pieces 1 and profiles 2 which are connected in turn in a rotating manner. The opening can be opened to different degrees when the cover plate 4 is folded to other cover plates 4, and a user can fold according to the requirement. For example, in the present embodiment, the foldable cover 5 is schematically illustrated as including three cover panels 4. The cover plate 4 at the tail of the tail box 6a can be lapped on the cover plate 4 in the middle by rotating to expose the opening part of the tail box 6a so as to facilitate the taking and placing of articles. Further, the cover plate 4 in the middle can be rotated again, so that the cover plate 4 in the middle and the cover plate 4 at the tail of the tail box 6a can be lapped to the cover plate 4 close to the driving cab 6b together, and more areas of the opening of the tail box 6a are exposed, thereby being beneficial to taking and placing of articles with larger volume. The periphery of each cover plate 4 can be provided with a section bar 2 and a connecting piece 1, and the cover plates 4 are wrapped and protected by the section bar 2 and the connecting piece 1. The connecting piece 1 is clamped in the clamping hole 2a of the section bar 2 by the clamping part 20, and the connecting piece 1 is connected with the section bar 2.

The foldable cover plate 5 provided in the present embodiment can improve the clamping effect of the connecting piece 1 and the profile 2 by adopting the connecting piece 1 provided in the above embodiment of the present application.

In this embodiment, the connecting member 1 is disposed axisymmetrically, and the connecting member 1 is close to the cab 6b of the moving device 6. Through making connecting piece 1 be axisymmetric setting, can make connecting piece 1 be close to the cockpit 6b of mobile device 6 to make connecting piece 1 laminate better with the storehouse wall of cockpit 6b, thereby improve the tight connection effect and the sealed effect of collapsible apron 5 and cockpit 6b department.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in 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 configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, connected, detachably connected, or integrated. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing has outlined rather broadly the more detailed description of embodiments of the application in order that the principles and embodiments of the application may be better understood, and in order that the present application may be better understood. However, the content of the present specification should not be construed as limiting the present application, and those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the application. Such modifications and variations of the present application are within the scope of the appended claims and their equivalents.

Claims (10)

1. The connecting piece is characterized by comprising a connecting piece body and clamping parts fixedly arranged on the connecting piece body, wherein the clamping parts are used for being inserted into clamping holes of sectional materials, each clamping part comprises a clamping column, two first bending columns which are connected to two opposite sides of the clamping column in a bending manner, each first bending column is away from a second bending column of the clamping column, and the two second bending columns are arranged close to each other.

2. The connector of claim 1, wherein the shape and size of the snap-fit portion is adapted to the shape and size of the snap-fit hole.

3. The connector of claim 1, wherein the connector body is provided with a through hole penetrating through one side of the connector body where the clamping portion is provided and one side of the connector body where the clamping portion is provided opposite to the clamping portion, the through hole is used for allowing a fastener to penetrate through and be in fastening fit with a fixing piece of the profile, and the through hole is formed in a space defined by the clamping post, the first bending post and the second bending post.

4. The connector of claim 3, wherein the connector body comprises a first side and a second side which are disposed opposite to each other, and a third side and a fourth side which are disposed opposite to each other between the first side and the second side, the first side is bent and connected to the third side, the first side and the third side are respectively provided with the clamping portion, the second side is bent and connected to the fourth side, and the second side and the fourth side are respectively provided with the through hole.

5. The connector of claim 4, wherein the bottom wall of the connector body for providing the buffer member is provided with a relief groove, and the two through holes are axially symmetrically arranged.

6. The connector of claim 5, wherein said connector is adapted to initially engage one of said fasteners through one of said through holes with a fastener of one of said profiles, and wherein an end of one of said fasteners is disposed within said relief groove; the connecting piece is also used for enabling the other fastening piece to be in fastening fit with the fixing piece of the other section bar through the other through hole, and the end part of the other fastening piece is arranged in the avoidance groove.

7. The connector of claim 6, wherein said relief groove includes a first portion disposed axially along one of said through holes, said first portion communicating with said second portion, and a second portion disposed axially along the other of said through holes, an end of one of said fasteners being disposed within said first portion and an end of the other of said fasteners being disposed within said second portion.

8. A connector according to claim 3, wherein the wall of the through hole is provided with a limit groove.

9. A foldable cover plate, characterized in that the foldable cover plate is used for being arranged to a tail box of a mobile device to shield an opening of the tail box, and comprises a plurality of cover plates, sectional materials and connecting pieces according to any one of claims 1-8 which are rotationally connected, wherein the periphery of the cover plates is fixed to a connecting piece body of the sectional materials and the connecting pieces, and clamping parts of the connecting pieces are clamped in clamping holes of the sectional materials.

10. The foldable flap of claim 9, wherein the connectors are axisymmetrically disposed, the connectors being proximate to the cab of the mobile device.