Fastener, connecting structure and electronic equipment

Abstract

The utility model provides a fastener, a connecting structure and electronic equipment. The fastener comprises a first polished rod part, a threaded part and a conical part arranged between the first polished rod part and the threaded part. The diameter of the end, close to the first polished rod part, of the conical part is larger than that of the first polished rod part, and the diameter of the end, close to the first polished rod part, of the conical part is larger than that of the end, close to the threaded part, of the conical part. Wherein the first polished rod part, the threaded part and the conical part are coaxially arranged. According to the fastener, the connecting structure and the electronic equipment, the conical part can be prevented from falling off from the to-be-disassembled part, when the fastener is disassembled, the threaded part is screwed out, the conical part is stressed to abut against the to-be-disassembled part and abut against the to-be-disassembled part to ascend until the threaded part completely retreats, disassembly and separation are completed, the structure is simple, additional elastic parts or gaskets do not need to be guided in, and the cost is reduced. And the effects of reducing cost and increasing efficiency are achieved.

Description

Technical Field

[0001] This disclosure relates to the field of electronic equipment technology, and more particularly to a fastener, connection structure, and electronic equipment. Background Technology

[0002] With the rapid development of laptops, their design has become increasingly user-friendly and convenient. The C-shell (or C-shell) of a laptop refers to the casing around the keyboard and touchpad, while the D-shell is the bottom casing that contacts the desktop. The C-shell and D-shell are typically connected by anti-loosening screws to prevent separation. To meet customer demand for easy disassembly, especially when customers are replacing solid-state drives (SSDs) or adding wireless network cards, removing the D-shell is undoubtedly the first problem encountered. When the D-shell is difficult to remove, it significantly impacts the customer experience, complicates later repairs, and greatly reduces work efficiency.

[0003] Existing solutions for disassembling the housing typically involve using elastic clips or washers to lift the D-shell, but this method requires additional parts, increasing production costs and reducing market competitiveness. Utility Model Content

[0004] This disclosure provides a fastener, a connection structure, and an electronic device to at least solve the above-mentioned technical problems existing in the prior art.

[0005] According to a first aspect of this disclosure, a fastener is provided, comprising: a first smooth rod portion, a threaded portion, and a tapered portion disposed between the first smooth rod portion and the threaded portion, wherein the diameter of the tapered portion at one end near the first smooth rod portion is greater than the diameter of the first smooth rod portion, and the diameter of the tapered portion at one end near the first smooth rod portion is greater than the diameter of the tapered portion at one end near the threaded portion; wherein the first smooth rod portion, the threaded portion, and the tapered portion are coaxially disposed.

[0006] In one embodiment, a second guide rod portion is further provided between the tapered portion and the threaded portion, wherein the diameter of the second guide rod portion is smaller than the major diameter of the threaded portion.

[0007] In one embodiment, the outer periphery of the tapered portion has a smooth surface.

[0008] In one embodiment, the device further includes a cap body connected to the end of the first guide rod portion away from the tapered portion, and the cap body has a groove.

[0009] According to a second aspect of this disclosure, a connection structure is provided, including a first body and a second body, wherein the first body and the second body are connected by a fastener as described in any of the above embodiments.

[0010] In one embodiment, the first body has a through hole for the fastener to pass through, and the end of the through hole away from the second body is provided with a chamfer for the tapered part to be guided into the first receiving space on the first body. The second body has a threaded hole and a second receiving space communicating with the threaded hole.

[0011] In one embodiment, the first body and the second body have a connected state and a separated state. When the first body and the second body are in the connected state, the first smooth rod portion passes through the through hole and the threaded portion engages with the threaded hole. The first accommodating space is connected to the second accommodating space, and the tapered portion is located within the first accommodating space and the second accommodating space. When the first body and the second body change from the connected state to the separated state, the threaded portion is screwed out from the threaded hole, and the tapered portion is forcefully pressed against the first body to separate the first body and the second body.

[0012] In one embodiment, when the fastener is coaxial with the through hole, the gap between the first smooth rod portion and the inner wall of the through hole is 0.2 mm.

[0013] In one embodiment, when the fastener is coaxial with the through hole, the portion of the tapered part that abuts against the first body is defined as the abutting surface, the abutting surface is annular, and the width of the abutting surface is greater than 0.2 mm.

[0014] According to a third aspect of this disclosure, an electronic device is provided, including a connection structure as described in the above-described embodiments.

[0015] In this disclosure, the fastener has a tapered portion, which not only serves as a guide to ensure smooth connection of the fastener to the part to be disassembled, but also limits the fastener to the part after connection, preventing the tapered portion from falling off. When disassembling the fastener, the threaded portion unscrews out, and the tapered portion is pressed against the part to be disassembled, pushing the part upward until the threaded portion is completely withdrawn, thus completing the disassembly and separation. Therefore, the fastener has a simple structure and does not require additional elastic elements or washers, achieving the effect of cost reduction and efficiency improvement.

[0016] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0017] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of this disclosure are illustrated in the drawings by way of example and not limitation, in which:

[0018] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0019] Figure 1 A schematic diagram of the overall structure of a fastener according to an exemplary embodiment of the present disclosure is shown;

[0020] Figure 2 A cross-sectional view of a connection structure (in a connected state) of an exemplary embodiment of this disclosure is shown;

[0021] Figure 3 A cross-sectional view (in a separated state) of a connection structure of an exemplary embodiment of this disclosure is shown;

[0022] Figure 4 A cross-sectional view of a connection structure of an exemplary embodiment of this disclosure is shown (the fasteners are not yet engaged with the first body).

[0023] The following are the labels in the diagram: 1. First smooth rod section; 2. Threaded section; 3. Tapered section; 4. Second smooth rod section; 5. Cap body; 6. First body; 7. Second body; 31. Abutting surface; 61. Through hole; 62. Chamfer; 63. First accommodating space; 71. Threaded hole; 72. Second accommodating space. Detailed Implementation

[0024] To make the objectives, features, and advantages of this disclosure more apparent and understandable, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0025] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0026] Reference Figure 1As shown, a fastener according to an exemplary embodiment of this disclosure includes a first smooth rod portion 1, a threaded portion 2, and a tapered portion 3 disposed between the first smooth rod portion 1 and the threaded portion 2. The diameter of the tapered portion 3 at the end near the first smooth rod portion 1 is larger than the diameter of the first smooth rod portion 1, and the diameter of the tapered portion 3 at the end near the first smooth rod portion 1 is larger than the diameter of the tapered portion 3 at the end near the threaded portion 2. The first smooth rod portion 1, the threaded portion 2, and the tapered portion 3 are coaxially arranged.

[0027] In this embodiment, the fastener is used to lock the housing in place. Simultaneously, the fastener also facilitates the disassembly of the housing; therefore, the housing is one of the components to be disassembled. When disassembly is required, one component needs to be removed from the other. The first smooth shank 1 of the fastener is unthreaded and bears tensile, shear, and torsional forces during the connection, ensuring the stability of the connection structure through its load-bearing function. The threaded portion 2 has threads on its surface, used to lock one of the components to be disassembled to the other. The tapered portion 3 has an inverted triangular structure; the side surface of the tapered portion 3 acts as a guide angle, guiding the fastener downwards slowly under external force. The component to be disassembled undergoes elastic deformation, ultimately connecting the tapered portion 3 to the component to be disassembled, thus assembling the fastener into place. The tapered portion 3 forms a bearing surface near the end face of the first smooth rod portion 1. By limiting the diameter of the tapered portion 3 near the first smooth rod portion 1 to be larger than the diameter of the first smooth rod portion 1 (i.e., the maximum diameter of the bearing surface is larger than the diameter of the first smooth rod portion 1), the bearing surface hooks onto the part to be disassembled after the fastener is assembled. Furthermore, the end of the tapered portion 3 near the first smooth rod portion 1 is restricted horizontally by the part to be disassembled, preventing the fastener from coming off and ensuring it is not easily detached from the part. During disassembly, under the action of external force, the threads of the threaded portion 2 rotate, causing the fastener to rise. The bearing surface of the tapered portion 3 will first touch the part to be disassembled. As the threads continue to rotate, the bearing surface of the tapered portion 3 will continue to push against the part to be disassembled until the threaded portion 2 is completely withdrawn. After the threaded portion 2 is completely withdrawn, a gap will appear between the two parts to be disassembled, supported by the fastener. The user can easily separate them by simply holding the gap with their hand.

[0028] In summary, because the fastener has a tapered portion 3, the tapered portion 3 not only serves as a guide, allowing the fastener to be smoothly connected to the part to be disassembled, but also confines the fastener to the part to be disassembled after the fastener and the part to be disassembled are connected, preventing the tapered portion 3 from falling off the part to be disassembled; when the fastener is disassembled, the threaded portion 2 is unscrewed, and the tapered portion 3 is forced against the part to be disassembled, pushing the part to be disassembled upwards until the threaded portion 2 is completely withdrawn, thus completing the disassembly and separation. Therefore, the fastener has a simple structure and does not require the introduction of additional elastic elements or washers, achieving the effect of cost reduction and efficiency improvement.

[0029] In one embodiment, the fastener further includes a second smooth rod portion 4 disposed between the tapered portion 3 and the threaded portion 2, the diameter of the second smooth rod portion 4 being smaller than the major diameter of the threaded portion 2.

[0030] In this embodiment, the diameter of the end of the tapered portion 3 near the second smooth rod portion 4 is the same as the diameter of the second smooth rod portion 4. That is, no end face is formed on the end where the tapered portion 3 connects to the second smooth rod portion 4, and the tapered portion 3 directly transitions to the second smooth rod portion 4.

[0031] In one embodiment, the outer periphery of the tapered portion 3 has a smooth surface.

[0032] In this embodiment, the outer peripheral surface of the tapered portion 3 is smooth and without threads, which can serve as a guide for the tapered portion 3 to be inserted into the part to be disassembled.

[0033] In one embodiment, the fastener further includes a cap 5, which is connected to the end of the first guide rod portion 1 away from the tapered portion 3, and the cap 5 has a groove.

[0034] In this embodiment, the cap 5 has various shapes and types, including but not limited to hexagonal, round, countersunk, or pan-head shapes. The groove on the cap 5 allows the screwdriver to rotate and lock the fastener. By rotating the cap 5, the fastener can be tightened to the required degree. The cap 5 acts as a receiving point for rotational force, transmitting the rotational force applied by the screwdriver to the first smooth rod portion 1 and the threaded portion 2 to produce a tightening effect.

[0035] Reference Figure 2 , Figure 3 and Figure 4 As shown, this disclosure also provides a connection structure, including a first body 6 and a second body 7, wherein the first body 6 and the second body 7 are connected by a fastener as described in any of the above embodiments.

[0036] In this embodiment, the connection structure is typically located on the casing of the electronic device. Taking a laptop as an example, the first body 6 is the D-shell of the laptop, and the second body 7 is the C-shell of the laptop. Since the connection structure includes a fastener with a tapered portion 3, the tapered portion 3 not only acts as a guide, allowing the fastener to connect smoothly to the first body 6, but also confines the fastener to the first body 6 after connection, preventing the tapered portion 3 from detaching from the first body 6. When disassembling the fastener, the threaded portion 2 unscrews, and the tapered portion 3 is forced against the first body 6, pushing the first body 6 upwards until the threaded portion 2 is completely withdrawn, thus completing the disassembly and separation. Therefore, the fastener has a simple structure, eliminating the need for additional elastic elements or washers, achieving cost reduction and efficiency improvement.

[0037] In one embodiment, the first body 6 has a through hole 61 for fasteners to pass through, and a chamfer 62 is provided at one end of the through hole 61 away from the second body 7 for the tapered part 3 to be guided into the first receiving space 63 on the first body 6. The second body 7 has a threaded hole 71 and a second receiving space 72 communicating with the threaded hole 71.

[0038] In one embodiment, the first body 6 and the second body 7 have a connected state and a separated state. When the first body 6 and the second body 7 are in the connected state, the first smooth rod part 1 passes through the through hole 61 and the threaded part 2 engages with the threaded hole 71. The first accommodating space 63 is connected to the second accommodating space 72, and the tapered part 3 is located in the first accommodating space 63 and the second accommodating space 72. When the first body 6 and the second body 7 change from the connected state to the separated state, the threaded part 2 is screwed out from the threaded hole 71, and the tapered part 3 is forced against the first body 6 to separate the first body 6 and the second body 7.

[0039] In this embodiment, a chamfer 62 is provided at the end of the through hole 61 away from the second body 7. The chamfer 62 serves to guide the tapered portion 3 into the first receiving space 63 on the first body 6. Under the action of external force, the fastener slowly moves downward along the chamfer 62, causing the first body 6 to elastically deform, allowing the tapered portion 3 to enter the first receiving space 63. In actual operation, the fastener is first inserted into the through hole 61 of the first body 6 along the chamfer 62, and then the tapered portion 3 is moved into the first receiving space 63 along the chamfer 62 with the help of external force. Then, the fastener is tightened normally. When disassembling and loosening the fastener, because the fastener has a tapered portion 3, it will lift the first body 6 upward during the loosening process. As the fastener is continuously unscrewed, the height of the first body 6 will increase, resulting in a larger gap between the first body 6 and the second body 7, making it easier for the user to disassemble the machine. In actual production, after sampling and verification, no fastener samples were found to fall off after assembly. In the fastener pressure test, the fastener was able to withstand a downward pressure of 6.9KG, and after 5 disassembly and reassembly cycles, the fastener still did not fall off.

[0040] In one embodiment, when the fastener is coaxial with the through hole 61, the gap between the first smooth rod portion 1 and the inner wall of the through hole 61 is 0.2 mm.

[0041] Furthermore, in one embodiment, when the fastener is coaxial with the through hole 61, the portion of the tapered portion 3 that abuts against the first body 6 is defined as the abutment surface 31. The abutment surface 31 is annular and its width is greater than 0.2 mm.

[0042] In this embodiment, the gap between the first smooth rod portion 1 and the inner wall of the through hole 61 is the single-sided gap between the diameter of the first smooth rod portion 1 and the diameter of the through hole 61. The size of the portion of the tapered portion 3 that abuts against the first body 6 is the single-sided engagement amount of the abutment surface 31. Since the single-sided gap between the diameter of the first smooth rod and the diameter of the through hole 61 is 0.2mm, when the fastener shifts to one side in the horizontal direction within the through hole 61 and contacts the inner wall of the through hole 61, as long as the engagement amount of the abutment surface 31 on the other side is still maintained, the tapered portion 3 can be prevented from falling out of the through hole 61. Therefore, theoretically, the single-sided engagement amount of the abutment surface 31 needs to be greater than 0.2mm. In actual production, considering manufacturing tolerances, the single-sided engagement amount of the abutment surface 31 is preferably 0.4mm, and the single-sided engagement amount between the edge of the cap 5 and the first body 6 is preferably 0.5mm. It is understandable that when the single-sided engagement amount of the contact surface 31 is 0.4mm, controlling the gap between the tapered portion 3 and the inner wall of the first accommodating space 63 to be less than 0.4mm can effectively prevent the tapered portion 3 from coming out of the through hole 61. That is, when one side of the tapered portion 3 contacts the inner wall of the first accommodating space 63, the contact surface 31 on the other side still has an engagement amount to prevent the tapered portion 3 from falling out of the through hole 61. Considering manufacturing tolerances, the gap between the tapered portion 3 and the inner wall of the first accommodating space 63 needs to be less than 0.3mm. It should be noted that this embodiment is described based on the dimensional data of a fastener that has been actually sampled. The dimensions of each part of the fastener are not limited to the dimensions shown above and can be adapted to actual needs.

[0043] This disclosure also provides an electronic device including a connection structure as described in the above embodiments.

[0044] In this embodiment, the electronic device can be, but is not limited to, a mobile phone, tablet computer, laptop computer, smartwatch, etc. Since the electronic device includes a connection structure, the fastener in the connection structure has a tapered portion 3. The tapered portion 3 not only serves as a guide, allowing the fastener to connect smoothly to the first body 6, but also confines the fastener to the first body 6 after connection, preventing the tapered portion 3 from falling off. When disassembling the fastener, the threaded portion 2 unscrews, and the tapered portion 3 is forced against the first body 6, pushing the first body 6 upwards until the threaded portion 2 is completely withdrawn, thus completing the disassembly and separation. The structure is simple, requiring no additional elastic elements or washers, achieving cost reduction and efficiency improvement.

[0045] In the description of this disclosure, it should be understood that the orientation or positional relationship indicated by directional terms is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this disclosure and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this disclosure; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0046] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," and "above" are used herein to describe the spatial positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that spatial relative terms include not only the orientation of the component as depicted in the figures but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0047] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0048] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in sequences other than those illustrated or described herein.

[0049] This disclosure has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this disclosure to the described embodiments. Furthermore, those skilled in the art will understand that this disclosure is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this disclosure, all of which fall within the scope of protection claimed by this disclosure. The scope of protection of this disclosure is defined by the appended claims and their equivalents.

Claims

1. A fastener, characterized in that, include: The first smooth rod portion (1), the threaded portion (2), and the tapered portion (3) disposed between the first smooth rod portion (1) and the threaded portion (2) are provided. The diameter of the tapered portion (3) at the end near the first smooth rod portion (1) is greater than the diameter of the first smooth rod portion (1), and the diameter of the tapered portion (3) at the end near the first smooth rod portion (1) is greater than the diameter of the tapered portion (3) at the end near the threaded portion (2). The first smooth rod portion (1), the threaded portion (2), and the tapered portion (3) are coaxially disposed.

2. The fastener according to claim 1, characterized in that, It also includes a second smooth rod portion (4) disposed between the tapered portion (3) and the threaded portion (2), wherein the diameter of the second smooth rod portion (4) is smaller than the major diameter of the threaded portion (2).

3. The fastener according to claim 1, characterized in that, The outer periphery of the tapered portion (3) has a smooth surface.

4. The fastener according to claim 1, characterized in that, It also includes a cap body (5), which is connected to the end of the first light rod (1) away from the tapered part (3), and the cap body (5) has a groove.

5. A connecting structure, comprising a first body (6) and a second body (7), characterized in that, The first body (6) and the second body (7) are connected by a fastener as described in any one of claims 1-4.

6. The connection structure according to claim 5, characterized in that, The first body (6) has a through hole (61) for the fastener to pass through. The end of the through hole (61) away from the second body (7) is provided with a chamfer (62) for the tapered part (3) to be guided into the first receiving space (63) on the first body (6). The second body (7) has a threaded hole (71) and a second receiving space (72) communicating with the threaded hole (71).

7. The connection structure according to claim 6, characterized in that, The first body (6) and the second body (7) have a connected state and a separated state. When the first body (6) and the second body (7) are in the connected state, the first smooth rod part (1) passes through the through hole (61) and the threaded part (2) engages with the threaded hole (71). The first accommodating space (63) is connected to the second accommodating space (72). The tapered part (3) is located in the first accommodating space (63) and the second accommodating space (72). When the first body (6) and the second body (7) change from the connected state to the separated state, the threaded part (2) is screwed out from the threaded hole (71) and the tapered part (3) is forced against the first body (6) to separate the first body (6) and the second body (7).

8. The connection structure according to claim 7, characterized in that, When the fastener is coaxial with the through hole (61), the gap between the first smooth rod portion (1) and the inner wall of the through hole (61) is 0.2 mm.

9. The connection structure according to claim 8, characterized in that, When the fastener is coaxial with the through hole (61), the part of the tapered portion (3) that abuts against the first body (6) is defined as the abutting surface (31), the abutting surface (31) is annular, and the width of the abutting surface (31) is greater than 0.2mm.

10. An electronic device, characterized in that, It includes the connection structure as described in any one of claims 5-9.

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