Screwing buckle and connecting kit for connecting door module and vehicle door metal plate

Abstract

The utility model relates to the technical field of automobile accessories, and provides a screwing buckle and a connecting suite, the screwing buckle comprises a buckle body, and the buckle body comprises an end cover part and a connecting column; one end of the connecting column is connected to the end cover part, and the two opposite sides of the other end are provided with protruding parts. The side, close to the connecting column, of the end cover part is provided with an annular first boss, and the periphery of the first boss is provided with an outer edge part. The end, provided with the protruding part, of the connecting column is suitable for sequentially penetrating through the door module and a through hole in the automobile door metal plate, and the protruding part is clamped to the side, away from the end cover part, of the automobile door metal plate through screwing. The outer edge part is suitable for abutting against the top face of a second boss located on the periphery of the through hole of the door module. The screwing buckle is integrally formed in an injection molding mode and is of a central axis symmetrical structure. The connecting kit comprises a door module and the screwing buckle. The sealing function can be achieved only through cooperation of the screwing buckle and the door module through hole structure, a sealing ring does not need to be arranged, the installation procedure of the screwing buckle is simplified, or the production cost of the screwing buckle is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of automobile accessories, and in particular to a screw-on clip and a connection kit for connecting a door module and a door sheet metal. Background Art

[0002] The current automobile door usually includes an outer sheet metal plate constituting the outer skin of the door and an inner sheet metal plate connected to the outer sheet metal plate. In order to meet the lightweight requirements, the middle part of the inner sheet metal plate is set as a fully plastic molded carrier plate, and the door functional components such as the window glass lifter and the side airbag module are pre-installed on the carrier plate. Finally, these door functional components and the carrier plate together form an integrated door module to realize the assembly of the door functional components on the door. Usually, the door module is connected to the inner sheet metal plate by a tightening buckle, and the door module and the inner sheet metal plate are provided with through holes adapted to the tightening buckle. The tightening buckle is inserted into the through holes on the door module and the inner sheet metal plate in turn, and the two are assembled and connected together by screwing the tightening buckle. In order to ensure the sealing effect of the tightening buckle on the through hole on the door module, a sealing ring (sealing gasket) is provided on the tightening buckle, and the sealing ring is connected to the tightening buckle through a secondary injection molding process, or the sealing ring is independent of the tightening buckle, and the sealing ring is sandwiched between the tightening buckle and the door module. The above-mentioned method of achieving sealing requires the provision of a sealing ring, thereby reducing the manufacturing efficiency of the tightening buckle or making the installation process complicated. Utility Model Content

[0003] In order to solve the above problems, the present application provides a screw-on clip and a connection kit for connecting a door module and a door sheet metal, which are cleverly designed and simple in structure. The present application optimizes the structure of the screw-on clip, and achieves a seal by abutting the outer edge of the screw-on clip with the second boss on the door module. The provision of the first boss prolongs the sealing path and improves the sealing effect, without the need to provide a sealing ring. While ensuring the sealing effect between the screw-on clip and the door module, the production cost of the screw-on clip is reduced and the installation process of the screw-on clip is simplified. The technical solutions adopted by the present application are as follows:

[0004] A tightening buckle for connecting a door module and a door sheet metal, comprising:

[0005] A buckle body, which includes an end cover and a connecting column; one end of the connecting column is connected to the end cover, and the other end is provided with raised portions on opposite sides; a first annular boss is provided on the side of the end cover close to the connecting column, and an outer edge is provided on the outer periphery of the first boss; the end of the connecting column provided with the raised portion is suitable for passing through the through holes on the door module and the door sheet metal in turn, and the raised portion is clamped on the side of the door sheet metal away from the end cover by screwing; the outer edge is suitable for abutting against the top surface of the second boss located on the outer periphery of the door module through hole; the screw-on buckle is integrally injection-molded and is a central axis symmetrical structure.

[0006] The present application optimizes the structure of the existing screw-on buckle, and realizes a seal by abutting the outer edge of the screw-on buckle with the second boss on the door module, and the provision of the first boss prolongs the sealing path, improves the sealing effect, and does not require the provision of a sealing ring. The screw-on buckle is made by an integrated injection molding process, which reduces the production cost of the screw-on buckle and simplifies the installation process of the screw-on buckle while ensuring the sealing effect between the screw-on buckle and the door module.

[0007] In some embodiments, there are at least two first bosses that are coaxially arranged, and a first groove is formed between adjacent first bosses. The first groove is suitable for clamping the other second bosses that are not in contact with the outer edge portion.

[0008] By setting multiple first bosses, multiple second bosses are also correspondingly provided. Except for the second boss abutting against the outer edge, the other second bosses are clamped in the first groove, so that multiple seals are formed between the tightening buckle and the door module, extending the sealing path and improving the sealing effect.

[0009] In some embodiments, the protrusion is provided with a first guide surface.

[0010] After one end of the connecting column on the tightening buckle is provided with a raised portion, it passes through the through holes on the door module and the door sheet metal in turn, and then the raised portion is hooked on the side of the door sheet metal away from the door module by screwing the tightening buckle. By providing the first guide surface, the risk of interference between the raised portion and the door sheet metal when screwing the tightening buckle can be reduced, and the screwing of the tightening buckle is facilitated, so that the raised portion gradually presses against the door sheet metal.

[0011] In some embodiments, the raised portion is provided with a positioning groove, the extension direction of the positioning groove is the same as the length direction of the connecting column, and the positioning groove is adapted to the positioning protrusion provided at the through hole of the door module to control the insertion posture of the tightening buckle.

[0012] By setting the positioning groove, the tightening buckle can be inserted into the through hole of the door module only when the positions of the positioning groove and the positioning protrusion correspond. The cooperation between the positioning groove and the positioning protrusion plays an anti-mistake effect and reduces the time wasted due to the wrong installation direction of the tightening buckle.

[0013] In some embodiments, anti-rotation portions are provided on opposite sides of one end of the connecting column close to the end cover portion, and the anti-rotation portions are suitable for being snapped into anti-rotation slots provided at the through hole of the door module.

[0014] By providing a stopper, when the tightening buckle is inserted into the through hole and screwed into place, the stopper will be stuck in the stopper slot, thereby preventing the tightening buckle from continuing to rotate. That is to say, the cooperation between the stopper and the stopper slot can not only prevent the tightening buckle from being over-tightened, thereby maximizing the thrust of the protrusion on the door sheet metal, but also prevent the tightening buckle from accidentally rotating in the opposite direction, thereby avoiding loosening of the connection between the door module and the door sheet metal.

[0015] In some embodiments, an elastic pre-installed portion is provided on the connecting column, one end of the elastic pre-installed portion is connected to the connecting column, and the other end is a free end; through the elastic pre-installed portion, the tightening buckle can be pre-installed in the through hole of the door module before clamping the vehicle door sheet metal.

[0016] In some embodiments, the elastic pre-installed portion includes a pre-installed slot, and second guide surfaces are provided on both sides of the pre-installed slot, and the pre-installed slot is suitable for being snapped into a protruding structure provided at the through hole of the door module.

[0017] By setting a pre-installed card slot and a second guide surface, when installing the tightening buckle, after the protruding structure is locked in the pre-installed card slot, the tightening buckle completes the pre-installation with the door module. That is to say, before the tightening buckle is engaged with the door sheet metal, the tightening buckle can be first installed on the door module through the cooperation of the pre-installed card slot and the protruding structure, which greatly improves the installation efficiency of the tightening buckle.

[0018] A concave platform is provided on one side of the end cover away from the connecting column, and a disassembly and screwing portion is provided in the concave platform. The shape of the disassembly and screwing portion is adapted to the first disassembly tool.

[0019] By arranging the disassembly and assembly screwing part in the concave platform, the concave platform protects the disassembly and assembly screwing part, preventing the disassembly and assembly screwing part from being accidentally touched, thereby causing the tightening buckle to loosen. The outer contour of the end cover part is made into a frustum shape in accordance with the concave platform, and the surface of the frustum close to the connecting column is suitable for abutting against the peripheral part of the through hole of the door module, which also plays a sealing role.

[0020] In some embodiments, the assembly and disassembly screwing portion is provided with a screwing groove, and the screwing groove is adapted to be matched with the second disassembly tool.

[0021] By arranging the screwing groove on the disassembly and assembly screwing part, the types of disassembly tools that can be matched with the disassembly and assembly screwing part are increased, and the adaptability of the tightening buckle to the disassembly tool is improved.

[0022] On the other hand, the present application also provides a connection kit, including a door module and the aforementioned tightening buckle, wherein the structure of the through hole of the door module is adapted to the tightening buckle.

[0023] The present application provides a tightening buckle and a connection kit for connecting a door module and a door sheet metal, which has at least one of the following beneficial effects:

[0024] 1. The present application provides a screw-on clip for connecting a door module and a door sheet metal, which optimizes the structure of the existing screw-on clip. A seal is achieved by abutting the outer edge of the screw-on clip with the second boss on the door module. The provision of the first boss prolongs the sealing path and improves the sealing effect, without the need for a sealing ring. The screw-on clip is made by an integrated injection molding process, which reduces the production cost of the screw-on clip and simplifies the installation process of the screw-on clip while ensuring the sealing effect between the screw-on clip and the door module.

[0025] 2. The present application provides a screw-on clip for connecting a door module and a vehicle door sheet metal. A plurality of first bosses are provided, and a plurality of second bosses are correspondingly provided. Except for the second boss abutting against the outer edge, the other second bosses are clamped in the first groove, so that a plurality of seals are formed between the screw-on clip and the door module, thereby extending the sealing path and improving the sealing effect.

[0026] 3. The present application provides a tightening buckle for connecting a door module and a door sheet metal. After one end of the connecting column on the tightening buckle is provided with a protruding portion, it passes through the through holes on the door module and the door sheet metal in turn, and the protruding portion is hooked on the side of the door sheet metal away from the door module by screwing the tightening buckle. By providing a first guide surface, the risk of interference between the protruding portion and the door sheet metal when screwing the tightening buckle can be reduced, and the screwing of the tightening buckle is facilitated, so that the protruding portion gradually presses against the door sheet metal.

[0027] 4. The present application provides a screw-in clip for connecting a door module and a door sheet metal. By setting a positioning groove, the screw-in clip can be inserted into the through hole of the door module only when the positions of the positioning groove and the positioning protrusion correspond to each other. The cooperation between the positioning groove and the positioning protrusion has an anti-mistake effect, reducing the time wasted due to the wrong installation direction of the screw-in clip.

[0028] 5. The present application provides a screw-in clip for connecting a door module and a vehicle door sheet metal. By setting a stopper, when the screw-in clip is inserted into the through hole and screwed into place, the stopper is stuck in the stopper slot, thereby preventing the screw-in clip from continuing to rotate. That is to say, the cooperation between the stopper and the stopper slot can not only prevent the screw-in clip from being over-screwed, thereby maximizing the thrust of the protrusion on the vehicle door sheet metal, but also prevent the screw-in clip from accidentally rotating in the opposite direction, thereby avoiding loosening of the connection between the door module and the vehicle door sheet metal.

[0029] 6. The present application provides a screw-in clip for connecting a door module and a vehicle door sheet metal. By setting a pre-installed slot and a second guide surface, when installing the screw-in clip, after the raised structure is stuck in the pre-installed slot, the screw-in clip completes the pre-installation with the door module. That is to say, before the screw-in clip is connected to the vehicle door sheet metal, the screw-in clip can be first installed on the door module through the cooperation of the pre-installed slot and the raised structure, which greatly improves the installation efficiency of the screw-in clip.

[0030] 7. The present application provides a screw-fastening clip for connecting a door module and a door sheet metal. The screw-fastening clip is provided in a concave platform, and the concave platform protects the screw-fastening clip, thereby preventing the screw-fastening clip from being accidentally touched, thereby preventing the screw-fastening clip from loosening. The outer contour of the end cover is formed into a cone shape in accordance with the concave platform, and the surface of the cone close to the connecting column is suitable for abutting against the peripheral part of the through hole of the door module, which also plays a sealing role.

[0031] 8. The present application provides a screw-in clip for connecting a door module and a door sheet metal. By providing a screw-in groove on a screw-in part, the types of disassembly tools that can be compatible with the screw-in part are increased, thereby improving the adaptability of the screw-in clip to the disassembly tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The following will explain the preferred embodiments in a clear and understandable manner in conjunction with the accompanying drawings, and further explain the above characteristics, technical features, advantages and implementation methods of a tightening buckle and a connecting kit for connecting a door module and a door sheet metal:

[0033] Figure 1 It is a schematic diagram of the overall structure of the present application for tightening the buckle;

[0034] Figure 2 yes Figure 1 Another perspective of the embodiment;

[0035] Figure 3 yes Figure 1 Another perspective of the embodiment;

[0036] Figure 4 It is a schematic diagram of the overall structure of the connection kit of this application;

[0037] Figure 5 The buckle is tightened and installed (the door sheet metal is not shown);

[0038] Figure 6 yes Figure 5 A schematic cross-sectional view of an embodiment;

[0039] Figure 7 yes Figure 5 Another schematic cross-sectional view of an embodiment and the cross-sectional view Figure 6 The section planes are perpendicular to each other;

[0040] Figure 8 is a cross-sectional schematic diagram before the pre-installed card slot and the protruding structure are engaged;

[0041] Fig. 9 is another cross-sectional schematic diagram before the pre-installed card slot and the protruding structure are connected and the cross-sectional surface is Figure 8 The section planes are perpendicular to each other;

[0042] Fig.10 is a cross-sectional schematic diagram after the pre-installed card slot and the protruding structure are engaged;

[0043] Fig.11 yes Figure 1 Yet another perspective of the embodiment.

[0044] Description of Figure Numbers:

[0045] End cover portion 1, connecting column 2, first boss 3, outer edge portion 4, raised portion 5, first groove 6, first guide surface 7, positioning slide groove 8, elastic pre-installed portion 9, pre-installed card slot 10, second guide surface 11, anti-rotation portion 12, recessed platform 13, disassembly and assembly screwing portion 14, screwing groove 15, door module 16, second boss 17, positioning protrusion 18, anti-rotation card slot 19, raised structure 20, through hole 21. DETAILED DESCRIPTION

[0046] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the specific implementation methods of the present application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0047] In order to simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0048] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0049] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0051] refer to Figure 1-Figure 7 The present application provides a screw-on clip for connecting a door module and a vehicle door sheet metal, comprising: a clip body, the clip body comprising an end cover portion 1 and a connecting column 2; one end of the connecting column 2 is connected to the end cover portion 1, and two opposite sides of the other end are provided with protrusions 5; a side of the end cover portion 1 close to the connecting column 2 is provided with a circular first boss 3, and the outer periphery of the first boss 3 is provided with an outer edge portion 4; one end of the connecting column 2 provided with the protrusion 5 is suitable for passing through the through holes 21 on the door module 16 and the vehicle door sheet metal in turn, and the protrusion 5 is clamped on the side of the vehicle door sheet metal away from the end cover portion 1 by screwing; the outer edge portion 4 is suitable for abutting against the top surface of the second boss 17 located on the outer periphery of the through hole 21 of the door module 16; the screw-on clip is integrally injection-molded and has a central axis symmetrical structure.

[0052] refer to Figure 1-Figure 7 It can be understood that the tightening buckle cooperates with the plastic door module 16 to play a sealing role, so some structures on the tightening buckle are adapted to the structures around the through hole 21 of the plastic door module 16, for example, the outer edge 4 and the second boss 17 abut against each other to play a sealing role; when the tightening buckle is installed, the annular first boss 3 adjacent to the outer edge 4 is adjacent to the second boss 17, extending the sealing path between the end cover 1 and the door module 16. The shapes of the through hole 21 on the plastic door module 16 and the through hole on the door sheet metal (inner sheet metal plate) are adapted to the tightening buckle, so that one end of the tightening buckle can not only pass through the through hole 21, but also be clamped on the side of the door sheet metal (not shown) by screwing the tightening buckle. For example, the through hole 21 on the plastic door module 16 and the through hole on the vehicle door sheet metal can be roughly rectangular or waist-shaped. After one end of the connecting column 2 with a protrusion 5 passes through the through hole 21 along the length direction of the through hole 21, the protrusion 5 can be pressed against the side of the vehicle door sheet metal away from the end cover portion 1 by rotating and tightening the buckle. In other words, the door module 16 and the vehicle door sheet metal are clamped between the protrusion 5 and the end cover portion 1, and the protrusion 5 and the end cover portion 1 are pulled against each other by the connecting column 2.

[0053] refer to Figure 6-Figure 10It is worth noting that the first boss 3 can be one track (one circle) or multiple tracks (multiple circles), and the number of the second bosses 17 on the door module 16 is adapted to the first boss 3. When the first boss 3 and the second boss 17 are both one track, after the tightening buckle is buckled on the door module 16, the first boss 3 is close to the second boss 17, and can even be interference fit. At this time, the first boss 3 extends the sealing path between the tightening buckle and the door module 16; when the first boss 3 and the second boss 17 are both multiple tracks, a first groove 6 is formed between two adjacent first bosses 3. Except for the second boss 17 on the outermost circle, the remaining second bosses 17 are respectively stuck in the corresponding first grooves 6, so that multiple seals are formed between the end cover 1 of the tightening buckle and the door module 16, which greatly improves the sealing effect.

[0054] refer to Figure 1-Figure 5 In one embodiment, the protrusion 5 is provided with a first guide surface 7, and the first guide surface 7 can be a smooth curved surface or a non-smooth curved surface, or an inclined plane. It is easy to understand that after the end of the connecting column 2 provided with the protrusion 5 on the tightening buckle passes through the door module 16 and the through hole 21 on the door sheet metal in turn, the protrusion 5 can be hooked on the side of the door sheet metal away from the door module 16 by screwing the tightening buckle. By providing the first guide surface 7, the risk of interference between the protrusion 5 and the door sheet metal when screwing the tightening buckle can be reduced, and the screwing of the tightening buckle is facilitated, so that the protrusion 5 gradually presses against the door sheet metal.

[0055] refer to Figure 1-Figure 4 , Figure 6 It is worth noting that, in one embodiment, the raised portion 5 is provided with a positioning slot 8, and the extending direction of the positioning slot 8 is the same as the length direction of the connecting column 2. Accordingly, a positioning protrusion 18 matching the positioning slot 8 is provided at the through hole 21 of the door module 16. The positioning slot 8 and the positioning protrusion 18 cooperate to restrict the posture of the screw buckle inserted into the through hole 21. That is, by providing the positioning slot 8, the screw buckle can only be inserted into the through hole 21 of the door module 16 when the positions of the positioning slot 8 and the positioning protrusion 18 correspond. The cooperation between the positioning slot 8 and the positioning protrusion 18 plays a foolproof role, reducing the time wasted due to the wrong installation direction of the screw buckle. In other embodiments, the positions of the positioning slot 8 and the positioning protrusion 18 can also be exchanged, that is, the positioning protrusion 18 is provided on the raised portion 5, and the positioning slot 8 is provided at the through hole 21 of the door module 16.

[0056] refer to Figure 1-Figure 4In order to prevent the over-rotation or reverse rotation of the tightening buckle, in one embodiment, the opposite sides of the end of the connecting column 2 close to the end cover 1 are provided with a stopper 12, and correspondingly, the through hole 21 of the door module 16 is provided with a stopper slot 19 adapted to the stopper 12. By providing the stopper 12, when the tightening buckle is inserted into the through hole 21 and screwed into place, the stopper 12 is stuck in the stopper slot 19, thereby preventing the tightening buckle from continuing to rotate. In other words, the cooperation between the stopper 12 and the stopper slot 19 can not only prevent the tightening buckle from being over-screwed, so that the thrust of the protrusion 5 on the door sheet metal is the largest, but also prevent the tightening buckle from accidentally rotating in the reverse direction, thereby avoiding the loosening of the connection between the door module 16 and the door sheet metal.

[0057] refer to Figure 1-Figure 5 , Figure 8 , Fig.10 In order to pre-install the tightening buckle in the through hole 21 of the door module 16, in one embodiment, an elastic pre-installed portion 9 is provided on the connecting column 2, one end of the elastic pre-installed portion 9 is connected to the connecting column 2, and the other end is a free end; the elastic pre-installed portion 9 includes a pre-installed card slot 10, and both sides of the pre-installed card slot 10 are provided with a second guide surface 11. Correspondingly, a protruding structure 20 adapted to the pre-installed card slot 10 is provided at the through hole 21 of the door module 16. It can be understood that a lot of tightening buckles are required when the plastic door module 16 is connected to the door sheet metal, and the tightening buckles are distributed along the edge of the door module 16. If the tightening buckles are taken one by one, the labor intensity will inevitably increase and the installation efficiency will be low. By providing the pre-installed card slot 10 and the second guide surface 11, when installing the tightening buckle, after the protruding structure 20 is stuck in the pre-installed card slot 10, the tightening buckle completes the pre-installation with the door module 16, that is, before the tightening buckle is connected to the door sheet metal, the tightening buckle can be first installed on the door module 16 through the cooperation of the pre-installed card slot 10 and the protruding structure 20, which greatly improves the installation efficiency of the tightening buckle. In this embodiment, the second guide surface 11 can be a smooth curved surface or a non-smooth curved surface, or an inclined plane. By providing the second guide surface 11 on both sides of the pre-installed card slot 10, not only can the protruding structure 20 be smoothly inserted into the pre-installed card slot 10, but also the difficulty of disassembling the tightening buckle can be reduced. It can be understood that the connection transition between the pre-installed card slot 10 and the second guide surface 11 is rounded or beveled. In other embodiments, the positions of the pre-installed card slot 10 and the protruding structure 20 can be replaced, that is, the protruding structure 20 is arranged on the elastic pre-installed portion 9, and the pre-installed card slot 10 is arranged at the through hole 21 of the door module 16.

[0058] refer to Figure 1-Figure 4 , Figure 7 , Fig.11In one embodiment, a concave platform 13 is provided on the side of the end cover 1 away from the connecting column 2, and a disassembly screwing portion 14 is provided in the concave platform 13, and the shape of the disassembly screwing portion 14 is adapted to the first disassembly tool. Specifically, the disassembly screwing portion 14 can be an external hexagonal structure or an external quadrangular structure, and the first disassembly tool is an internal hexagonal sleeve or an internal quadrangular sleeve. By arranging the disassembly screwing portion 14 in the concave platform 13, the concave platform 13 plays a protective role for the disassembly screwing portion 14, preventing the disassembly screwing portion 14 from being accidentally touched, thereby causing the tightening buckle to loosen. It is worth noting that the outer contour of the end cover 1 can be made into a cone shape that conforms to the concave platform 13, and a table surface of the cone connecting the connecting column 2 is suitable for abutting against the peripheral part of the through hole 21 of the door module 16. In other words, the table surface of the cone is suitable for abutting against the side of the door module 16 away from the door sheet metal, which also plays a sealing role.

[0059] refer to Figure 4 , Figure 7 Another point to note is that, in one embodiment, the disassembly screwing portion 14 is provided with a screwing groove 15, and the screwing groove 15 is compatible with the second disassembly tool. Specifically, the cross-sectional shape of the screwing groove 15 can be an inner hexagon or an inner square, or other shapes, and the second disassembly tool is an outer hexagon socket or an outer square socket, or other sockets or wrenches that are compatible with the screwing groove 15. By providing the screwing groove 15 on the disassembly screwing portion 14, the types of disassembly tools that can be compatible with the disassembly screwing portion 14 are increased, and the adaptability of the tightening buckle to the disassembly tool is improved.

[0060] refer to Figure 4-Figure 10 On the other hand, the present application also provides a connection kit, including the aforementioned door module 16 and a tightening buckle, and the structure of the through hole 21 of the door module 16 is adapted to the tightening buckle. The specific structure of the door module 16 and the tightening buckle refers to the aforementioned embodiment. Since the present connection kit adopts the technical solution of the aforementioned embodiment, it at least has the beneficial effects brought by the technical solution of the aforementioned embodiment, which will not be described one by one here.

[0061] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. A fastening buckle for connecting a door module and a door sheet metal, characterized in that: include: A buckle body, which includes an end cover and a connecting column; one end of the connecting column is connected to the end cover, and the other end is provided with raised portions on opposite sides; a first annular boss is provided on the side of the end cover close to the connecting column, and an outer edge is provided on the outer periphery of the first boss; the end of the connecting column provided with the raised portion is suitable for passing through the through holes on the door module and the door sheet metal in turn, and the raised portion is clamped on the side of the door sheet metal away from the end cover by screwing; the outer edge is suitable for abutting against the top surface of the second boss located on the outer periphery of the door module through hole; the screw-on buckle is integrally injection-molded and is a central axis symmetrical structure.

2. A fastening buckle for connecting a door module and a door sheet metal according to claim 1, characterized in that: There are at least two first bosses which are coaxially arranged, and first grooves are formed between adjacent first bosses. The first grooves are suitable for clamping the other second bosses which are not in contact with the outer edge.

3. The fastening buckle for connecting a door module and a door sheet metal according to claim 1, characterized in that: The protrusion is provided with a first guide surface.

4. The fastening buckle for connecting a door module and a door sheet metal according to claim 1, characterized in that: The protruding portion is provided with a positioning slot, the extension direction of the positioning slot is the same as the length direction of the connecting column, and the positioning slot is adapted to the positioning protrusion provided at the through hole of the door module to control the insertion posture of the tightening buckle.

5. The fastening buckle for connecting a door module and a door sheet metal according to claim 1, characterized in that: The connecting column is provided with anti-rotation parts on opposite sides of one end close to the end cover part, and the anti-rotation parts are suitable for being clamped in the anti-rotation grooves provided at the through holes of the door module.

6. The fastening buckle for connecting a door module and a door sheet metal according to claim 1, characterized in that: An elastic pre-installed portion is provided on the connecting column, one end of the elastic pre-installed portion is connected to the connecting column, and the other end is a free end; through the elastic pre-installed portion, the tightening buckle can be pre-installed in the through hole of the door module before the door sheet metal is clamped.

7. The fastening buckle for connecting a door module and a door sheet metal according to claim 6, characterized in that: The elastic pre-installed portion includes a pre-installed slot, and second guide surfaces are provided on both sides of the pre-installed slot. The pre-installed slot is suitable for being clamped on a protruding structure provided at the through hole of the door module.

8. A fastening buckle for connecting a door module and a door sheet metal according to any one of claims 1 to 7, characterized in that: A concave platform is provided on one side of the end cover away from the connecting column, and a disassembly and screwing portion is provided in the concave platform. The shape of the disassembly and screwing portion is adapted to the first disassembly tool.

9. The fastening buckle for connecting a door module and a door sheet metal according to claim 8, characterized in that: The disassembly and screwing portion is provided with a screwing groove, and the screwing groove is adapted to the second disassembly tool.

10. A connection kit, characterized in that: It comprises a door module and a tightening buckle, wherein the tightening buckle is the tightening buckle described in any one of claims 1 to 9, and the structure of the through hole of the door module is adapted to the tightening buckle.

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