Fastener cover fixing structure and equipment

Abstract

The utility model relates to the technical field of fastener covers, in particular to a fastener cover fixing structure and equipment, and aims to solve the problem that an existing screw cover is difficult to disassemble. In order to achieve the purpose, the fastener cover fixing structure comprises an installation component, a counter bore is formed in the installation component, a supporting part is arranged at the bottom of the counter bore, and a limiting structure is arranged on the inner side wall of the counter bore; the cover body is rotatably arranged in the counterbore in a detachable mode, and a positioning structure is arranged at the bottom of the cover body; when the cover body is placed in the counterbore, the cover body is supported by the supporting part; when the cover body rotates in the counter bore in the set direction, the limiting structure can be matched with the positioning structure, and the cover body is fixed in the counter bore. The fastener cover fixing structure is simple in structure and convenient and fast to disassemble and assemble, and the structure for connecting the cover body and the mounting part cannot be damaged in the disassembly and assembly process. And the cover body covers the counterbore, so that the user can obtain good visual sense experience.

Description

Technical Field

[0001] The utility model relates to the technical field of fastener covers, and specifically provides a fastener cover fixing structure and equipment. Background Art

[0002] Connecting two parts by screws is a common connection method. As users have higher and higher requirements for product aesthetics, more and more products are provided with screw covers at the locations where screws are installed to cover the screws, thereby improving the aesthetics of the products.

[0003] At present, most conventional screw covers are fixed to one of the multiple components connected by screws by a claw structure arranged straight up and down at one end of the screw cover. The screw cover fixed by such a clamping method is difficult to remove, and the screw cover is easily damaged during the removal process, so a new screw cover has to be replaced, which increases the cost. Utility Model Content

[0004] The utility model aims to solve the above technical problem, that is, to solve the problem that the existing screw cover is difficult to disassemble.

[0005] In the first aspect, the utility model provides a fastener cover fixing structure, comprising: an installation component, a countersunk hole is opened on the installation component, a supporting portion is arranged at the bottom of the countersunk hole, and a limiting structure is arranged on the inner side wall of the countersunk hole; a cover body, the cover body is rotatably arranged in the countersunk hole in a detachable manner, and a positioning structure is arranged at the bottom of the cover body; when the cover body is placed in the countersunk hole, the cover body is supported by the supporting portion; when the cover body rotates in the countersunk hole along a set direction, the limiting structure can cooperate with the positioning structure to fix the cover body in the countersunk hole.

[0006] Furthermore, the limiting structure includes a first limiting portion and a second limiting portion arranged on the inner side wall of the countersunk hole; the first limiting portion extends toward the inside of the countersunk hole and forms a limiting groove structure with the surface of the supporting portion facing the open end of the countersunk hole; the second limiting portion is arranged between the first limiting portion and the supporting portion.

[0007] Furthermore, the cover body includes a cover plate and an extension portion; the extension portion is arranged on a side of the cover plate facing the countersunk hole; and the positioning structure is arranged at the bottom of the extension portion.

[0008] Further, the positioning structure includes a first positioning portion and a second positioning portion; the first positioning portion is arranged at the bottom of the extension portion and extends in a direction away from the extension portion; the second positioning portion is arranged on the surface opposite to the inner side wall of the first positioning portion and the countersunk hole; when the limiting structure cooperates with the positioning structure, the first positioning portion is restricted by the first limiting portion and cooperates with the limiting groove structure, and the second positioning portion cooperates with the second limiting portion.

[0009] Furthermore, an elastic gap is provided between the first positioning portion and the extending portion, so as to provide space for the first positioning portion to be deformed under pressure.

[0010] Furthermore, a first rib is arranged on the top surface of the cover body; a plurality of second ribs are arranged on the outer surface of the mounting component; when the cover body is placed in the countersunk hole and the limiting structure cooperates with the positioning structure, the first rib of the cover body is aligned with the second rib on the outer surface of the mounting component that passes through the open end of the countersunk hole.

[0011] Furthermore, a positioning mark is provided on the inner side wall of the countersunk hole, for indicating the position of the cover body inserted into the countersunk hole.

[0012] Furthermore, reinforcing ribs are provided on the outer side wall of the countersunk hole.

[0013] Furthermore, the mounting component and the cover body are made of plastic material.

[0014] In a second aspect, the present invention provides a device comprising the fastener cover fixing structure as described above.

[0015] In the case of adopting the above technical solution, the utility model can connect the cover body with the installation component by cooperating the positioning structure arranged at the bottom of the cover body with the limiting structure arranged on the inner wall of the countersunk hole. The fastener cover fixing structure has a simple structure, convenient and quick disassembly and assembly operation, and will not cause damage to the structure connecting the cover body and the installation component during the disassembly and assembly process. The cover of the countersunk hole by the cover body also gives the user a good visual sensory experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] In the attached figure:

[0018] Figure 1A and Figure 1B is a schematic diagram of the cover body and the mounting component in the embodiment of the present application;

[0019] FIG. 2A to FIG. 2C is a schematic diagram of the structure of the installation components in the embodiment of the present application;

[0020] Figure 3A and Figure 3B is a schematic structural diagram of a cover body in an embodiment of the present application;

[0021] Figure 4A and Figure 4B is Figure 1A The state of the various parts of the cover body and the mounting component in the countersunk hole when the cover body and the mounting component are in the mating state shown;

[0022] Figure 5A and Figure 5B is Figure 1B The state of the various parts of the cover body and the mounting component in the countersunk hole when the cover body and the mounting component are in the mating state shown.

[0023] Reference numerals:

[0024] 1. Mounting component; 11. Countersunk hole; 12. Support portion; 13. First limiting portion; 14. Second limiting portion; 15. Second rib; 16. Through hole; 2. Cover body; 21. Cover plate; 22. Extension portion; 23. First positioning portion; 24. Second positioning portion; 25. First rib; 26. Elastic gap. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0026] First, it should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "longitudinal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] like Figure 1A and Figure 1B As shown, an embodiment of the present application provides a fastener cover fixing structure, which includes: a mounting component 1 and a cover body 2.

[0029] like FIG. 2A to FIG. 2C As shown, the mounting component 1 is provided with a countersunk hole 11, the bottom of the countersunk hole 11 is provided with a supporting portion 12, and the supporting portion 12 is provided with a through hole 16, so that a fastener can pass through the through hole 16 to fix the mounting component 1 with other components. Figure 1A and Figure 1B The cover body 2 is rotatably disposed in the countersunk hole 11 in a detachable manner.

[0030] The cover body 2 is inserted into the countersunk hole 11 formed on the mounting component 1 to cover the fastener in the countersunk hole 11 and the countersunk hole 11 itself. Figure 1A The figure shows a state where the cover body 2 is inserted into the countersunk hole 11 on the mounting component 1 but the cover body 2 has not yet been fixed in the countersunk hole 11; Figure 1B The figure shows a state where the cover body 2 is fixed in the countersunk hole 11 .

[0031] Also like FIG. 2A to FIG. 2C As shown, a limiting structure is provided on the inner side wall of the countersunk hole 11. The limiting structure includes a first limiting portion 13 and a second limiting portion 14 provided on the inner side wall of the countersunk hole 11. The first limiting portion 13 extends toward the inside of the countersunk hole 11; for example, the first limiting portion 13 may be a platform structure provided on the inner side wall of the countersunk hole 11 and extending from the inner side wall of the countersunk hole 11; the first limiting portion 13 and the surface of the support portion 12 facing the open end of the countersunk hole 11 form a limiting groove structure (not shown in the figure). The second limiting portion 14 is provided on the inner side wall of the countersunk hole 11 and is located between the first limiting portion 13 and the support portion 12.

[0032] like Figure 3A and Figure 3BAs shown, a positioning structure is provided at the bottom of the cover body 2. When the cover body 2 rotates in a set direction in the countersunk hole 11, the limiting structure provided in the countersunk hole 11 can cooperate with the positioning structure provided at the bottom of the cover body 2, thereby fixing the cover body 2 in the countersunk hole 11. Specifically, the positioning structure includes a first positioning portion 23 and a second positioning portion 24. The cover body 2 includes a cover plate 21 and an extension portion 22; the extension portion 22 is provided on a side of the cover plate 21 facing the countersunk hole 11; the positioning structure is provided at the bottom of the extension portion 22, wherein the first positioning portion 23 is provided at the bottom of the extension portion 22 and extends in a direction away from the extension portion 22, that is, extends in a direction close to the inner side wall of the countersunk hole 11; the second positioning portion 24 is provided on the surface of the first positioning portion 23 opposite to the inner side wall of the countersunk hole 11. When the limiting structure arranged in the countersunk hole 11 cooperates with the positioning structure arranged at the bottom of the cover body 2, the first positioning portion 23 arranged on the cover body 2 is restricted by the first limiting portion 13 arranged on the inner side wall of the countersunk hole 11 and cooperates with the limiting groove structure, and the second positioning portion 24 arranged on the first positioning portion 23 cooperates with the second limiting portion 14 arranged on the inner side wall of the countersunk hole 11, thereby fixing the cover body 2 in the countersunk hole 11.

[0033] After the cover body 2 is fixed in the countersunk hole 11, the cover body 2 can be rotated so that the limiting structure arranged in the countersunk hole 11 and the positioning structure arranged at the bottom of the cover body 2 are separated from the mating state, so that the cover body 2 can be taken out of the countersunk hole 11, that is, the cover body 2 can be removed from the mounting component 1.

[0034] Through the cooperation of the limiting structure and the positioning structure, the cover body 2 is restricted in the countersunk hole 11 and cannot be separated from the countersunk hole 11. In addition, the cover body 2 covers the countersunk hole 11, so that the user cannot see the countersunk hole 11 and the fastener located at the bottom of the countersunk hole 11 from the outside of the mounting component 1. Separating the limiting structure and the positioning structure from the coordinated state enables the cover body 2 to be removed from the countersunk hole 11 when needed, for example, when the fastener fixed in the countersunk hole 11 needs to be removed.

[0035] The above-mentioned mounting component 1 can be a component on a certain device, for example, a component on a household appliance (for example, a back plate on a washing machine, or a grille on an indoor unit of an air conditioner), or a component on an industrial device (for example, a cover of a control cabinet). The mounting component 1 is connected to other components through fasteners. The fasteners can be screws or bolts.

[0036] When the cover body 2 is placed in the countersunk hole 11 , the cover body 2 is supported by the support portion 12 provided in the countersunk hole 11 .

[0037] like Figure 1A , Figure 4A and Figure 4BAs shown, when the cover body 2 is inserted into the countersunk hole 11, the cover body 2 needs to be adjusted to a specific position (such as Figure 1A The cover 21 is inserted into the countersunk hole 11, so that the positioning structure (including: the first positioning part 23 and the second positioning part 24) arranged at the bottom of the cover 2 will not interfere with the first limiting part 13 arranged on the inner wall of the countersunk hole 11 during the insertion of the cover 2 into the countersunk hole 11. And finally, the bottom of the extension part 22 of the cover 2 is placed on the support part 12, so that the support part 12 plays a supporting role for the cover 2. At this time, the positioning structure (including: the first positioning part 23 and the second positioning part 24) is adjacent to the limiting structure (including: the first limiting part 13 and the second limiting part 14) arranged on the inner wall of the countersunk hole 11, and is in a separated state. In addition, the upper surface of the cover plate 21 is also flush with the outer surface of the mounting component 1. Therefore, while the cover 2 covers the countersunk hole 11, it can also keep the outer surface of the mounting component 1 flat, so that the user can get a good visual sensory experience.

[0038] Furthermore, in the process of inserting the cover body 2 into the countersunk hole 11 as described above, the positioning structure arranged at the bottom of the cover body 2 may be compressed and deformed by the inner wall of the countersunk hole 11. Figure 3A As shown, an elastic gap 26 is provided between the first positioning portion 23 and the extending portion 22 to provide space for the first positioning portion 23 to be deformed under pressure, thereby ensuring that the positioning structure will not be damaged.

[0039] like Figure 1B , Figure 5A and Figure 5B As shown, the cover body 2 is then rotated so that the positioning structure provided at the bottom of the cover body 2 cooperates with the limiting structure provided on the inner wall of the countersunk hole 11. At this time, the first limiting portion 13 and the first positioning portion 23 are in a state of being stacked up and down, with the first limiting portion 13 on the top and the first positioning portion 23 on the bottom; thereby, the first positioning portion 23 cooperates with the limiting groove structure. Thus, the first limiting portion 13 provided on the inner wall of the countersunk hole 11 restricts the first positioning portion 23 provided on the cover body 2, so that the cover body 2 cannot move in the direction away from the countersunk hole 11 along the axial direction of the countersunk hole 11. Thus, the cover body 2 is restricted in the countersunk hole 11 and cannot escape from the countersunk hole 11. When the cover body 2 is to be taken out from the countersunk hole 11, the cover body 2 is rotated in the opposite direction so that the first positioning portion 23 provided on the cover body 2 is moved out from under the first limiting portion 13 provided on the inner wall of the countersunk hole 11, thereby releasing the restriction on the cover body 2 moving along the axial direction of the countersunk hole 11 toward the direction away from the countersunk hole 11.

[0040] In addition, when the first positioning portion 23 disposed at the bottom of the cover body 2 is in a matching position with the first limiting portion 13 disposed on the inner side wall of the countersunk hole 11, the second positioning portion 24 disposed on the first positioning portion 23 and the second limiting portion 14 disposed on the inner side wall of the countersunk hole 11 are also in a matching state. The matching of the second positioning portion 24 and the second limiting portion 14 can limit the rotation of the cover body 2 in the countersunk hole 11 relative to the countersunk hole 11.

[0041] When the matching relationship between the second positioning portion 24 and the second limiting portion 14 needs to be released, the second positioning portion 24 and the second limiting portion 14 can be separated from each other by rotating the cover body 2 .

[0042] In a specific embodiment, Figure 3A As shown, the second positioning portion 24 is one or more convex ribs arranged in the middle of the first positioning portion 23, and as shown in Figure 2C As shown, the second limiting portion 14 is one or more grooves corresponding to the shape of the rib of the second positioning portion 24. The rotation of the cover body 2 in the countersunk hole 11 relative to the countersunk hole 11 is limited by the cooperation of the rib and the groove. The second positioning portion 24 can also be set as a groove, and the second limiting portion 14 can be set as a rib. The embodiment of the present application does not specifically limit the structure of the second positioning portion 24 and the second limiting portion 14, as long as the cooperation of the second positioning portion 24 and the second limiting portion 14 can limit the rotation of the cover body 2 in the countersunk hole 11 relative to the countersunk hole 11.

[0043] At this point, the cooperation between the positioning structure and the limiting structure not only limits the cover body 2 from being separated from the countersunk hole 11 , but also limits the cover body 2 from rotating in the countersunk hole 11 , thereby firmly fixing the cover body 2 in the countersunk hole 11 .

[0044] In the above process, no matter whether the positioning structure and the limiting structure are in a separated state or a matched state, the supporting portion 12 supports the cover body 2 .

[0045] Further, when the first positioning portion 23 is engaged with the first limiting portion 13 , it can be configured that the first positioning portion 23 and the first limiting portion 13 are abutted against each other up and down.

[0046] Furthermore, in order to facilitate the engagement and separation of the first positioning portion 23 and the first limiting portion 13 , a chamfered structure may be provided at the end of the first positioning portion 23 .

[0047] Furthermore, a plurality of positioning structures can be provided at the bottom of the cover body 2 as required, and a plurality of limiting structures can be provided on the inner wall of the countersunk hole 11 accordingly; for example, Figure 3A and Figure 3B As shown, two positioning structures are symmetrically arranged at the bottom of the cover body 2; accordingly, as FIG. 2A to FIG. 2CAs shown, two limiting structures are provided at corresponding positions on the inner wall of the countersunk hole 11. The embodiment of the present application does not specifically limit the number of the positioning structures and the limiting structures.

[0048] Furthermore, if Figure 3A As shown, in order to facilitate the insertion of the cover body 2 into the countersunk hole 11 and the rotation of the cover body 2 in the countersunk hole 11, a first rib 25 can be provided on the top surface of the cover body 2. The operator operates the cover body 2 by grasping the first rib 25. Figure 2A As shown, a plurality of second ribs 15 are provided on the outer surface of the mounting component 1 to strengthen the mounting component 1. When the cover 2 is inserted into the countersunk hole 11 and the first positioning portion 23 is engaged with the first limiting portion 13, as shown in FIG. Figure 1B As shown, the first rib 25 of the cover body 2 is aligned with the second rib 15 on the outer surface of the mounting component 1 that passes through the open end of the countersunk hole 11 .

[0049] Furthermore, the alignment of the first rib 25 of the cover 2 with the second rib 15 on the outer surface of the mounting component 1 passing through the open end of the countersunk hole 11 can be used as an auxiliary means to determine whether the cover 2 is fixed in the countersunk hole 11 .

[0050] In a specific embodiment, Figures 1A to 5B As shown, a plurality of second ribs 15 arranged on the outer surface of the mounting component 1 are arranged in parallel. When the cover body 2 is inserted into the countersunk hole 11, the first rib 25 of the cover body 2 forms a certain angle with the second rib 15 on the outer surface of the mounting component 1 that passes through the open end of the countersunk hole 11. When the cover body 2 is rotated so that the positioning structure and the limiting structure cooperate, the first rib 25 of the cover body 2 forms a straight line with the second rib 15 on the outer surface of the mounting component 1 that passes through the open end of the countersunk hole 11, so that the user can obtain a good visual sensory experience. The arrangement of the plurality of second ribs 15 arranged on the outer surface of the mounting component 1 can be determined as needed, and the embodiment of the present application does not specifically limit this.

[0051] Furthermore, when the operator inserts the cover body 2 into the countersunk hole 11, if the cover body 2 is not inserted into the countersunk hole 11 in a suitable position, the first positioning portion 23 arranged at the bottom of the cover body 2 interferes with the first limiting portion 13 arranged in the countersunk hole 11 or with the supporting portion 12 arranged on the inner wall of the countersunk hole 11, resulting in that the bottom of the extension portion 22 of the cover body 2 is not placed on the supporting portion 12, thereby causing the cover body 2 to not be fully inserted into the countersunk hole 11, and the upper surface of the cover plate 21 is not flush with the outer surface of the mounting component 1, but is higher than the outer surface of the mounting component 1.

[0052] In order to avoid the above situation and enable the operator to quickly and accurately determine the insertion position of the cover body 2, a positioning mark (not shown in the figure) is provided on the inner side wall of the countersunk hole 11 to indicate the position where the cover body 2 is inserted into the countersunk hole 11. For example, the positioning mark can be a line or a graphic mark marked on the inner side wall of the countersunk hole 11. When the cover body 2 is inserted into the countersunk hole 11, the insertion position of the cover body 2 can be determined by aligning the first rib 25 provided on the cover plate 21 of the cover body 2 with the positioning mark; or the insertion position of the cover body 2 can be determined by aligning the second positioning portion 24 provided at the bottom of the cover body 2 with the positioning mark. The embodiment of the present application does not specifically limit the form of the positioning mark and the alignment method of the cover body 2 and the positioning mark.

[0053] Furthermore, in order to improve the strength of the countersunk hole 11, a reinforcing rib (not shown in the figure) is provided on the outer wall of the countersunk hole 11. The reinforcing rib can connect the outer wall of the countersunk hole 11 with the inner wall of the mounting component 1, thereby improving the strength of the countersunk hole 11.

[0054] The mounting component 1 and the cover body 2 in the embodiment of the present application are preferably made of plastic material, so as to utilize the elasticity of the plastic material to avoid damage to the cover body 2 and the mounting component 1 during assembly and disassembly of the cover body 2 and the mounting component 1.

[0055] The embodiment of the present application also provides a setting, and the device includes the fastener cover fixing structure as described above. As long as there is a situation in the device where two components need to be connected together by fasteners, the above-mentioned fastener cover fixing structure can be applied. The device can be a household appliance, such as a washing machine, an air conditioner, a television, a refrigerator, etc. On household appliances, fasteners (such as screws, bolts, etc.) are often used to connect two components together, for example, the back panel of an air conditioner is connected to the outer shell of the air conditioner with screws. The device can also be industrial equipment, such as electrical equipment, computer equipment, numerical control and automation equipment, mechanical equipment, etc. There are also application scenarios on these devices where two components need to be connected together by fasteners. In these application scenarios mentioned above, the fastener cover fixing structure in the embodiment of the present application as described above can be used.

[0056] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A fastener cover fixing structure, characterized in that: include: A mounting component, wherein a countersunk hole is formed on the mounting component, a supporting portion is provided at the bottom of the countersunk hole, and a limiting structure is provided on the inner side wall of the countersunk hole; A cover body, the cover body is rotatably disposed in the countersunk hole in a detachable manner, and a positioning structure is disposed at the bottom of the cover body; When the cover is placed in the countersunk hole, the cover is supported by the support portion; When the cover body rotates in the countersunk hole along a set direction, the limiting structure can cooperate with the positioning structure to fix the cover body in the countersunk hole.

2. The fixing structure according to claim 1, characterized in that: The limiting structure includes a first limiting portion and a second limiting portion arranged on the inner side wall of the countersunk hole; The first limiting portion extends toward the inside of the countersunk hole, and forms a limiting groove structure with the surface of the supporting portion facing the opening end of the countersunk hole; The second limiting portion is disposed between the first limiting portion and the supporting portion.

3. The fixing structure according to claim 2, characterized in that: The cover body comprises a cover plate and an extension portion; The extension portion is arranged on a side of the cover plate facing the countersunk hole; The positioning structure is arranged at the bottom of the extending portion.

4. The fixing structure according to claim 3, characterized in that: The positioning structure includes a first positioning portion and a second positioning portion; The first positioning portion is disposed at the bottom of the extending portion and extends in a direction away from the extending portion; The second positioning portion is disposed on a surface of the first positioning portion opposite to the inner side wall of the countersunk hole; When the limiting structure cooperates with the positioning structure, the first positioning portion is restricted by the first limiting portion and cooperates with the limiting groove structure, and the second positioning portion cooperates with the second limiting portion.

5. The fixing structure according to claim 4, characterized in that: An elastic gap is provided between the first positioning portion and the extending portion, so as to provide space for the first positioning portion to be deformed under pressure.

6. The fixing structure according to any one of claims 1 to 5, characterized in that: A first rib is arranged on the top surface of the cover body; A plurality of second ribs are arranged on the outer surface of the mounting component; When the cover is placed in the countersunk hole and the limiting structure cooperates with the positioning structure, the first rib of the cover is aligned with the second rib on the outer surface of the mounting component that passes through the open end of the countersunk hole.

7. The fixing structure according to any one of claims 1 to 5, characterized in that: A positioning mark is arranged on the inner side wall of the countersunk hole, for indicating the position where the cover body is inserted into the countersunk hole.

8. The fixing structure according to any one of claims 1 to 5, characterized in that: A reinforcing rib is arranged on the outer side wall of the countersunk hole.

9. The fixing structure according to any one of claims 1 to 5, characterized in that: The mounting component and the cover are made of plastic material.

10. A device, characterized in that: The invention comprises the fastener cover fixing structure according to any one of claims 1 to 9.

Images