Fastener cover connection structure and device

Abstract

The utility model relates to the technical field of fastener covers, in particular to a fastener cover connecting 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 connecting structure comprises a fixing part provided with a counter bore, a supporting part is arranged in the counter bore, and a limiting structure and an additional limiting part are arranged on the inner side wall of the counter bore; the cover body is rotatably arranged in the counterbore in a detachable manner and comprises a cover plate and a positioning structure arranged on the bottom surface of the cover plate; the cover body rotates in the counter bore in the set direction so that the positioning structure can be matched with or separated from the limiting structure. And the limiting structure is matched with the positioning structure, so that the cover body can be fixed in the counterbore. The fastener cover connecting structure is simple in structure and convenient and fast to disassemble and assemble, and the connecting structure of the cover body and the fixing component cannot be damaged in the disassembling and assembling 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 connection 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 connection structure, comprising: a fixing component, a countersunk hole is opened on the fixing component, a supporting part is arranged in the countersunk hole, and a limiting structure and an additional limiting part are 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 the cover body comprises a cover plate and a positioning structure arranged on the bottom surface of the cover plate; when the cover body rotates in the countersunk hole along a set direction, the positioning structure can be matched / separated from the limiting structure; when the limiting structure is matched with the positioning structure, the cover body can be fixed in the countersunk hole; when the limiting structure is separated from the positioning structure, the additional limiting part cooperates with the positioning structure to limit the cover body.

[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] Further, the positioning structure includes a connecting portion, a first positioning portion and a second positioning portion; the connecting portion is arranged on the bottom surface of the cover plate and extends in the direction of the countersunk hole; the first positioning portion is arranged at the bottom of the connecting portion and extends in the direction away from the connecting 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 positioning structure cooperates with the limiting 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.

[0008] Furthermore, the additional limiting portion extends from the inner side wall of the countersunk hole toward the interior of the countersunk hole, and is spaced apart from the limiting structure along the circumferential direction on the inner side wall of the countersunk hole; when the limiting structure is separated from the positioning structure, the additional limiting portion cooperates with the first positioning portion to limit the cover body along the axial direction of the countersunk hole.

[0009] Furthermore, two end surfaces of the additional limiting portion that are relatively arranged along the axial direction of the countersunk hole are arranged at an angle to guide the first positioning portion.

[0010] Further, when the cover body is placed in the countersunk hole, the supporting portion supports the cover body through the first positioning portion.

[0011] 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 fixing component; when the cover body is placed in the countersunk hole and the positioning structure cooperates with the limiting structure, the first rib of the cover body is aligned with the second rib on the outer surface of the fixing component that passes through the opening end of the countersunk hole.

[0012] 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 fixing component; when the cover body is placed in the countersunk hole and the positioning structure cooperates with the limiting structure, the first rib of the cover body is aligned with the second rib on the outer surface of the fixing component that passes through the opening end of the countersunk hole.

[0013] Furthermore, the fixing 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 connection structure as described above.

[0015] In the case of adopting the above technical solution, the utility model can connect the cover body with the fixed component by cooperating the positioning structure arranged on the bottom surface of the cover plate with the limiting structure arranged on the inner side wall of the countersunk hole. And the cover body is limited by cooperating the positioning structure with the additional limiting part arranged on the inner side wall of the countersunk hole. The fastener cover connection 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 fixed component during the disassembly and assembly process. The cover of the countersunk hole by the cover body also gives users 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 fixing component in the embodiment of the present application;

[0019] Figure 2A and Figure 2B is a schematic diagram of the structure of the fixing component 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 fixing component in the countersunk hole when the cover body and the fixing component are in the matching state shown;

[0022] FIG. 5A to FIG. 5C is Figure 1B The state of the various parts of the cover body and the fixing component in the countersunk hole when the cover body and the fixing component are in the matching state shown.

[0023] Reference numerals:

[0024] 1. Fixing component; 11. Countersunk hole; 12. Limiting structure; 121. First limiting portion; 122. Second limiting portion; 13. Support portion; 14. Additional limiting portion; 15. Second rib; 16. Through hole; 17. Reinforcing rib; 2. Cover body; 21. Positioning structure; 211. Connecting portion; 212. First positioning portion; 213. Second positioning portion; 22. Cover plate; 23. First rib. 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 connection structure, which includes: a fixing component 1 and a cover body 2.

[0029] like Figure 2A and Figure 2B As shown, a countersunk hole 11 is provided on the fixing component 1, and a supporting portion 13 is provided in the countersunk hole 11. A limiting structure 12 and an additional limiting portion 14 are provided on the inner side wall of the countersunk hole 11. A through hole 16 is provided at the bottom of the countersunk hole 11, so that a fastener can pass through the through hole 16 to fix the fixing component 1 with other components. Figure 1A and Figure 1B The cover body 2 can be rotatably disposed in the countersunk hole 11 in a detachable manner.

[0030] The cover body 2 is inserted into the countersunk hole 11 provided on the fixing component 1 to cover the fastener in the countersunk hole 11 and the countersunk hole 11 itself. Figure 1AThe figure shows a state where the cover body 2 is inserted into the countersunk hole 11 on the fixing 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 Figure 2A and Figure 2B As shown, the limiting structure 12 includes a first limiting portion 121 and a second limiting portion 122 disposed on the inner side wall of the countersunk hole 11. The first limiting portion 121 extends toward the inside of the countersunk hole 11; for example, the first limiting portion 121 may be a platform structure disposed 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 121 and the surface of the support portion 13 facing the open end of the countersunk hole 11 form a limiting groove structure (not shown in the figure). The second limiting portion 122 is disposed on the inner side wall of the countersunk hole 11 and is located between the first limiting portion 121 and the support portion 13.

[0032] like Figure 3A and Figure 3B As shown, the cover body 2 includes: a cover plate 22 and a positioning structure 21 disposed on the bottom surface of the cover plate 22. When the cover body 2 rotates in the countersunk hole 11 along a set direction, the limiting structure 12 disposed in the countersunk hole 11 can cooperate with the positioning structure 21 disposed on the bottom surface of the cover plate 22, thereby fixing the cover body 2 in the countersunk hole 11.

[0033] Specifically, the positioning structure 21 includes a connecting portion 211, a first positioning portion 212 and a second positioning portion 213. The connecting portion 211 is arranged on the bottom surface of the cover plate 22 and extends in the direction of the countersunk hole 11; the first positioning portion 212 is arranged at the bottom of the connecting portion 211 and extends in the direction away from the connecting portion 211; the second positioning portion 213 is arranged on the surface of the first positioning portion 212 opposite to the inner side wall of the countersunk hole 11. When the positioning structure 21 arranged on the bottom surface of the cover plate 22 cooperates with the limiting structure 12 arranged in the countersunk hole 11, the first positioning portion 212 arranged at the bottom of the connecting portion 211 is limited by the first limiting portion 121 arranged on the inner side wall of the countersunk hole 11 and cooperates with the limiting groove structure, and the second positioning portion 213 arranged on the first positioning portion 212 cooperates with the second limiting portion 122 arranged on the inner side wall of the countersunk hole 11, thereby fixing the cover body 2 in the countersunk hole 11.

[0034] When the cover body 2 is placed in the countersunk hole 11 , the support portion 13 supports the cover body 2 through the first positioning portion 212 .

[0035] After the cover body 2 is fixed in the countersunk hole 11, the limit structure 12 disposed in the countersunk hole 11 and the positioning structure 21 disposed on the bottom surface of the cover plate 22 can be separated from the mating state by rotating the cover body 2. When the limit structure 12 is separated from the positioning structure 21, the additional limit portion 14 disposed on the inner side wall of the countersunk hole 11 cooperates with the positioning structure 21 disposed on the bottom surface of the cover plate 22 to limit the cover body 2.

[0036] Specifically, Figure 2A and Figure 2B As shown, the additional limiting portion 14 extends from the inner side wall of the countersunk hole 11 to the inside of the countersunk hole 11, and is spaced apart from the limiting structure 12 on the inner side wall of the countersunk hole 11 along the circumferential direction. Figure 4A and Figure 4B As shown, when the limiting structure 12 is separated from the positioning structure 21, the additional limiting portion 14 cooperates with the first positioning portion 212 to limit the cover body 2 along the axial direction of the countersunk hole 11. In this case, to remove the cover body 2 from the countersunk hole 11, a certain pulling force must be applied to the cover body 2 so that the first positioning portion 212 is freed from the restriction of the additional limiting portion 14 on the first positioning portion 212 under the action of the pulling force, so that the cover body 2 can be removed from the countersunk hole 11, that is, the cover body 2 is removed from the fixing component 1.

[0037] Furthermore, in order to facilitate the first positioning portion 212 to break away from the restriction of the additional limiting portion 14, as shown in FIG. Figure 4B As shown, the two end faces of the additional limiting portion 14 that are relatively arranged along the axial direction of the countersunk hole 11 are arranged at an angle, that is, the upper and lower end faces of the additional limiting portion 14 form a certain angle. For example, the cross-section of the additional limiting portion 14 is triangular or trapezoidal, and one angle of the triangle or the narrow end of the trapezoid protrudes from the inner side of the countersunk hole 11 and extends toward the inside of the countersunk hole 11, so that the first positioning portion 212 is guided by the two end faces of the additional limiting portion 14 that are arranged at an angle, so as to facilitate the cooperation and separation of the additional limiting portion 14 and the first positioning portion 212.

[0038] The fastener cover connection structure described above is limited in the countersunk hole 11 by the cooperation of the limiting structure 12 and the positioning structure 21, so that the cover body 2 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 fixing component 1. The limiting structure 12 and the positioning structure 21 are separated from the matched state, so that when needed, for example, when the fastener fixed in the countersunk hole 11 needs to be removed, the cover body 2 can be removed from the countersunk hole 11.

[0039] In addition, by cooperating with the additional limiting portion 14 and the positioning structure 21, when the limiting structure 12 is separated from the positioning structure 21, the additional limiting portion 14 can also limit the cover body 2 in the countersunk hole 11. For the application scenario where the opening end of the countersunk hole 11 on the fixing component 1 is downward and the cover body 2 is to be installed in the countersunk hole 11 from bottom to top, the additional limiting portion 14 can prevent the cover body 2 from accidentally falling off from the countersunk hole 11 during the installation or removal of the cover body 2.

[0040] The fixing 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 fixing component 1 is connected to other components by fasteners. The fasteners can be screws or bolts.

[0041] As shown in Figure 1, Figure 4A and Figure 4B As 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 2 is inserted into the countersunk hole 11, so that during the insertion of the cover 2 into the countersunk hole 11, the first positioning portion 212 and the second positioning portion 213 of the positioning structure 21 disposed on the bottom surface of the cover plate 22 will not interfere with the first limiting portion 121 disposed on the inner wall of the countersunk hole 11. In addition, during the insertion of the cover 2 into the countersunk hole 11, the additional limiting portion 14 disposed on the inner wall of the countersunk hole 11 and spaced apart from the limiting structure 12 in the circumferential direction cooperates with the first positioning portion 212, thereby limiting the cover 2 in the axial direction of the countersunk hole 11, so that the cover 2 cannot freely escape from the countersunk hole 11 along the axial direction of the countersunk hole 11.

[0042] like Figure 4A and Figure 4B As shown, after the cover body 2 moves downward so that the first positioning portion 212 contacts the upper end surface of the additional limiting portion 14, since the upper and lower end surfaces of the additional limiting portion 14 are arranged at an angle as described above, the first positioning portion 212 is guided by the upper end surface of the additional limiting portion 14, and only a very small force is needed to make the first positioning portion 212 pass over the additional limiting portion 14 and reach the bottom of the additional limiting portion 14, so that the additional limiting portion 14 is located above the first positioning portion 212, limiting the upward movement of the first positioning portion 212, and further limiting the cover body 2 from separating from the countersunk hole 11.

[0043] While the additional limiting portion 14 limits the first positioning portion 212, the support portion 13 disposed in the countersunk hole 11 provides support for the first positioning portion 212, so that the support portion 13 supports the cover body 2. At this time, the first positioning portion 212 and the second positioning portion 213 of the positioning structure 21 are adjacent to the first limiting portion 121 and the second limiting portion 122 of the limiting structure 12 disposed on the inner wall of the countersunk hole 11, and are in a separated state. In addition, the upper surface of the cover plate 22 is also flush with the outer surface of the fixing component 1. As a result, while the cover body 2 covers the countersunk hole 11, it can also keep the outer surface of the fixing component 1 flat, so that the user can obtain a good visual sensory experience.

[0044] like Figure 1B , Figure 5A , Figure 5B and Figure 5C As shown, the cover body 2 is then rotated so that the positioning structure 21 provided on the bottom surface of the cover plate 22 cooperates with the limiting structure 12 provided on the inner side wall of the countersunk hole 11. At this time, the first positioning portion 212 is separated from the attachment limiting portion 14, and cooperates with the first limiting portion 121, so that the first limiting portion 121 and the first positioning portion 212 are in a state of being stacked up and down, with the first limiting portion 121 on the top and the first positioning portion 212 on the bottom; thereby, the first positioning portion 212 cooperates with the limiting groove structure. Thus, the first limiting portion 121 provided on the inner wall of the countersunk hole 11 restricts the first positioning portion 212 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 212 provided on the cover body 2 is moved out from under the first limiting portion 121 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 a direction away from the countersunk hole 11.

[0045] In addition, when the first positioning portion 212 disposed on the bottom surface of the cover plate 22 is in a matching position with the first limiting portion 121 disposed on the inner side wall of the countersunk hole 11, the second positioning portion 213 disposed on the first positioning portion 212 and the second limiting portion 122 disposed on the inner side wall of the countersunk hole 11 are also in a matching state. The cooperation between the second positioning portion 213 and the second limiting portion 122 can limit the rotation of the cover body 2 in the countersunk hole 11 relative to the countersunk hole 11.

[0046] When the matching relationship between the second positioning portion 213 and the second limiting portion 122 needs to be released, the cover body 2 can be rotated to separate the second positioning portion 213 and the second limiting portion 122 from each other.

[0047] In a specific embodiment, Figure 3A As shown, the second positioning portion 213 is one or more grooves arranged in the middle of the first positioning portion 212. Figure 2B As shown, the second limiting portion 122 is one or more convex ribs corresponding to the shape of the groove of the second positioning portion 213. 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 convex rib and the groove. The second positioning portion 213 can also be set as a convex rib groove, and the second limiting portion 122 can be set as a groove. The embodiment of the present application does not specifically limit the structure of the second positioning portion 213 and the second limiting portion 122, as long as the cooperation of the second positioning portion 213 and the second limiting portion 122 can limit the rotation of the cover body 2 in the countersunk hole 11 relative to the countersunk hole 11.

[0048] At this point, the cooperation between the positioning structure 21 and the limiting structure 12 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 .

[0049] In the above process, no matter whether the positioning structure 21 and the limiting structure 12 are in a separated state or a matched state, the supporting portion 13 plays a supporting role on the cover body 2 .

[0050] Further, when the first positioning portion 212 is engaged with the first limiting portion 121 , it can be configured that the first positioning portion 212 and the first limiting portion 121 are abutted against each other up and down.

[0051] Furthermore, in order to facilitate the engagement and separation of the first positioning portion 212 and the first limiting portion 121 , a chamfered structure may be provided at the end and edge of the first positioning portion 212 .

[0052] Further, a plurality of positioning structures 21 can be provided at the bottom of the cover body 2 as required, and a corresponding number of limiting structures 12 and additional limiting portions 14 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 21 are symmetrically arranged at the bottom of the cover body 2; accordingly, as Figure 5A and Figure 5B As shown, two limiting structures 12 and two additional limiting portions 14 are provided at corresponding positions on the inner wall of the countersunk hole 11. The number of the positioning structures 21 and the limiting structures 12 is not specifically limited in the embodiment of the present application.

[0053] 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 23 can be provided on the top surface of the cover body 2. The operator operates the cover body 2 by grasping the first rib 23. Figure 2AAs shown, a plurality of second ribs 15 are provided on the outer surface of the fixing member 1 to strengthen the fixing member 1. When the cover 2 is inserted into the countersunk hole 11 and the first positioning portion 212 is engaged with the first limiting portion 121, as shown in FIG. Figure 1B As shown, the first rib 23 of the cover body 2 is aligned with the second rib 15 on the outer surface of the fixing component 1 that passes through the open end of the countersunk hole 11 .

[0054] Furthermore, the alignment of the first rib 23 of the cover 2 with the second rib 15 on the outer surface of the fixing 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 .

[0055] In a specific embodiment, Figures 1A to 5C As shown, a plurality of second ribs 15 arranged on the outer surface of the fixing component 1 are arranged in parallel. When the cover body 2 is inserted into the countersunk hole 11, the first rib 23 of the cover body 2 forms a certain angle with the second rib 15 on the outer surface of the fixing 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 21 cooperates with the limiting structure 12, the first rib 23 of the cover body 2 forms a straight line with the second rib 15 on the outer surface of the fixing 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 fixing component 1 can be determined as needed, and the embodiment of the present application does not specifically limit this.

[0056] 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 at a suitable position, the first positioning portion 212 provided on the ground of the cover body 2 interferes with the first limiting portion 121 provided in the countersunk hole 11, resulting in the cover body 2 not being fully inserted into the countersunk hole 11, and the upper surface of the cover plate 22 is not flush with the outer surface of the fixing component 1, but is higher than the outer surface of the fixing component 1.

[0057] 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 23 provided on the cover plate 22 of the cover body 2 with the positioning mark; or the second positioning portion 213 of the positioning structure 21 provided on the bottom surface of the cover plate 22 is aligned with the positioning mark to determine the insertion position of the cover body 2. 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.

[0058] Furthermore, if Figure 4A As shown, in order to improve the strength of the countersunk hole 11 , a reinforcing rib 17 is provided on the outer wall of the countersunk hole 11 to connect the outer wall of the countersunk hole 11 with the inner wall of the fixing component 1 , thereby improving the strength of the countersunk hole 11 .

[0059] The fixing 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 fixing component 1 during assembly and disassembly of the cover body 2 and the fixing component 1.

[0060] The embodiment of the present application also provides a setting, and the device includes the fastener cover connection 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 connection 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 an industrial device, 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 connection structure in the embodiment of the present application as described above can be used.

[0061] 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 connection structure, characterized in that: include: A fixing component, wherein a countersunk hole is provided on the fixing component, a supporting portion is provided in the countersunk hole, and a limiting structure and an additional limiting portion are 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 the cover body comprises a cover plate and a positioning structure disposed on the bottom surface of the cover plate; When the cover body rotates in the countersunk hole along a set direction, the positioning structure can be matched with / separated from the limiting structure; When the limiting structure cooperates with the positioning structure, the cover body can be fixed in the countersunk hole; When the limiting structure is separated from the positioning structure, the additional limiting portion cooperates with the positioning structure to limit the cover body.

2. The connection 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 connection structure according to claim 2, characterized in that: The positioning structure includes a connecting portion, a first positioning portion and a second positioning portion; The connecting portion is arranged on the bottom surface of the cover plate and extends in the direction of the countersunk hole; The first positioning portion is disposed at the bottom of the connecting portion and extends in a direction away from the connecting 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 positioning structure cooperates with the limiting 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.

4. The connection structure according to claim 3, characterized in that: The additional limiting portion extends from the inner side wall of the countersunk hole toward the inside of the countersunk hole, and is spaced apart from the limiting structure on the inner side wall of the countersunk hole along the circumferential direction; When the limiting structure is separated from the positioning structure, the additional limiting portion cooperates with the first positioning portion to limit the cover body along the axial direction of the countersunk hole.

5. The connection structure according to claim 4, characterized in that: The two end surfaces of the additional limiting portion that are arranged opposite to each other along the axial direction of the countersunk hole are arranged at an angle to guide the first positioning portion.

6. The connection structure according to claim 3, characterized in that: When the cover body is placed in the countersunk hole, the support portion supports the cover body through the first positioning portion.

7. The connection structure according to any one of claims 1 to 6, 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 fixing component; When the cover is placed in the countersunk hole and the positioning structure cooperates with the limiting structure, the first rib of the cover is aligned with the second rib on the outer surface of the fixing component passing through the open end of the countersunk hole.

8. The connection structure according to any one of claims 1 to 6, 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.

9. The connection structure according to any one of claims 1 to 6, characterized in that: The fixing component and the cover body are made of plastic material.

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

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