CN107524688B - Fastening device and electronic equipment - Google Patents
Fastening device and electronic equipment Download PDFInfo
- Publication number
- CN107524688B CN107524688B CN201710812627.0A CN201710812627A CN107524688B CN 107524688 B CN107524688 B CN 107524688B CN 201710812627 A CN201710812627 A CN 201710812627A CN 107524688 B CN107524688 B CN 107524688B
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- China
- Prior art keywords
- component
- washer
- fastener
- fastening device
- unidirectional fastener
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000002788 crimping Methods 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 230000002265 prevention Effects 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0208—Interlock mechanisms; Means for avoiding unauthorised use or function, e.g. tamperproof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Security & Cryptography (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Gasket Seals (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The present disclosure provides a fastening device and an electronic apparatus, wherein the fastening device includes a one-way fastener and a washer, the washer is crimped on the first component, and a head portion of the one-way fastener is crimped on the washer, and a tail portion of the one-way fastener is in threaded connection with the second component, so as to fasten the first component and the second component. The one-way fastener may fracture the washer when rotated in a tightening direction to separate a nose portion of the one-way fastener from the washer. The first component and the second component are fastened through the unidirectional fastener and the gasket, and the unidirectional fastener can only rotate unidirectionally, so that the gasket is broken by screwing the unidirectional fastener when the first component and the second component are disassembled; therefore, after the first part and the second part are disassembled, the gasket needs to be replaced by a new gasket, so that the purpose of disassembly prevention is achieved.
Description
Technical Field
The disclosure relates to the technical field of electronic equipment, and in particular relates to a fastening device and electronic equipment.
Background
In the technical field of mobile communication, as the use frequency of electronic equipment is higher and higher, the damage amount of the electronic equipment is greatly improved, and a great amount of after-sales services are carried out, but the problem frequently encountered in the after-sales service process is that users split the electronic equipment privately, and the electronic equipment is not split in a correct mode, so that huge trouble is brought to product maintenance. The anti-disassembly method adopted at present is to paste an anti-disassembly label on the electronic equipment, and the method cannot well achieve the anti-disassembly purpose in practice.
Disclosure of Invention
The present disclosure provides a fastening device and an electronic apparatus to solve the deficiencies in the related art.
According to a first aspect of embodiments of the present disclosure, there is provided a fastening device comprising a one-way fastener and a washer crimped on a first component, a head portion of the one-way fastener being crimped on the washer and a tail portion of the one-way fastener being threadedly connected with a second component to fasten the first component and the second component;
the one-way fastener may fracture the washer when rotated in a tightening direction to separate a nose portion of the one-way fastener from the washer.
Optionally, the washer includes a crimping portion and a bearing portion connected to the crimping portion, the unidirectional fastener crimping the bearing portion such that the crimping portion crimps the first component; a displacement gap is arranged between the bearing part and the second part, and the bearing part can be broken in the displacement gap by rotating the unidirectional fastener along the screwing direction.
Optionally, the bearing part is provided with a pre-cracking groove.
Optionally, the crimping portion and the bearing portion are integrally disposed.
Optionally, the first component is provided with an accommodating space for accommodating the gasket, and a matching part is arranged in the accommodating space and is matched with the first component, so that the crimping part is crimped to the first component.
Optionally, the tip of one-way fastener is equipped with the groove of screwing, the groove of screwing is the style of calligraphy, two diagonal positions of groove of screwing are equipped with the inclined plane that is used for preventing the one-way fastener is contrary to screw.
Optionally, the inclined surface is an arc surface extending outwards from one side of the screwing groove.
According to a second aspect of embodiments of the present disclosure, there is provided a fastening device comprising a one-way fastener and a washer crimped on a first member, a head portion of the one-way fastener being crimped on the washer and a tail portion being threadedly connected with a second member to fasten the first member and the second member;
the washer comprises a crimping part used for crimping the first component and a bearing part detachably connected with the crimping part, wherein the bearing part is used for supporting the unidirectional fastener, and the crimping part can be separated from the bearing part when the unidirectional fastener rotates along the screwing direction so as to separate the head part of the unidirectional fastener from the washer.
Optionally, the press-connection portion is overlapped with the bearing portion, a displacement gap is provided between the bearing portion and the second component, and the unidirectional fastener is rotated along the screwing direction to enable the bearing portion to move towards the displacement gap to deform and separate from the press-connection portion.
Optionally, the pressing part is provided with a concave part, the bearing part is provided with a convex part, and when the pressing part is matched with the bearing part, the convex part is lapped in the concave part.
According to a third aspect of embodiments of the present disclosure, there is provided an electronic device comprising the fastening arrangement provided in the first and/or second aspects of the present disclosure.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
the first component and the second component are fastened through the unidirectional fastener and the gasket, and the unidirectional fastener can only rotate unidirectionally, so that the gasket is broken by screwing the unidirectional fastener when the first component and the second component are disassembled; therefore, after the first part and the second part are disassembled, the gasket needs to be replaced by a new gasket, so that the purpose of disassembly prevention is achieved.
Drawings
Fig. 1 is a cross-sectional view of a fastening device connecting a first component and a second component, as shown in an exemplary embodiment of the present disclosure.
Fig. 2 is a schematic view of a one-way fastener separated from a washer in a fastening device according to an exemplary embodiment of the present disclosure.
Fig. 3 is a top view of a one-way fastener shown in an exemplary embodiment of the present disclosure.
Fig. 4 is a cross-sectional view of a fastening device shown in another exemplary embodiment of the present disclosure.
Fig. 5 is a schematic view of a one-way fastener separated from a washer in a fastening device according to another exemplary embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.
Fig. 1 is a cross-sectional view of a fastening device connecting a first component and a second component, as shown in an exemplary embodiment of the present disclosure. The present disclosure also provides an electronic device comprising means for securing at least two components that can cooperate with each other. As shown in fig. 1, the fastening device comprises a unidirectional fastener 1 and a washer 2. The unidirectional fastener 1 cooperates with the gasket 2 to fasten the first component 3 to the second component 4, and the first component 3 and the second component 4 may be an upper case and a lower case of an electronic device. Wherein the washer 2 is crimped on the first component 3, and the head part and the tail part of the unidirectional fastener 1 are crimped on the washer 2 and are in threaded connection with the second component 4, so that the first component 3 and the second component 4 are fastened.
When the first part 3 and the second part 4 are disassembled, the unidirectional fastener 1 is rotated along the screwing direction, the unidirectional fastener 1 is displaced towards the second part 4, the unidirectional fastener 1 applies locking pressure to the gasket 2 along the displacement direction, and the gasket 2 breaks when the locking pressure exceeds the loading force. The washer 2 is no longer constrained by the locking pressure exerted by the unidirectional fastener 1, and the washer 2 is no longer crimped to the first part 3 after breaking. The first part 3 is movable relative to the second part 4 to facilitate removal of the first part 3 from the second part 4 to complete removal of the first part 3 from the second part 4.
According to the technical scheme, the first part 3 and the second part 4 are fastened through the unidirectional fastener 1 and the gasket 2, and the unidirectional fastener 1 can only rotate unidirectionally, so that the gasket 2 is broken by screwing the unidirectional fastener 1 when the first part 3 and the second part 4 are disassembled. Therefore, when the first part 3 and the second part 4 are disassembled and then reassembled, a new gasket 2 is needed to be replaced, and a user of the gasket 2 cannot obtain the gasket at will, so that the electronic equipment cannot be used well when the gasket 2 is damaged, and the purpose of disassembly prevention is achieved.
With continued reference to fig. 1, in one embodiment, the gasket 2 includes a pressing portion 21 and a bearing portion 22, where the pressing portion 21 is connected to the bearing portion 22. In this embodiment, the pressure contact portion 21 and the bearing portion 22 are integrally provided. For example, the gasket 2 is made of plastic material, and is integrally formed by injection molding. Wherein the bearing part 22 is used for being matched with the unidirectional fastener 1, and the unidirectional fastener 1 can be pressed on the bearing part 22, so that the pressing part 21 fastens the first component 3 and the second component 4. The first member 3 is provided with a receiving space 31 for receiving the gasket 2, a fitting portion 32 is provided in the receiving space 31, and the fitting portion 32 is fitted to the first member 3 so that the press-fit portion 21 presses the first member 3. When the gasket 2 is accommodated in the accommodating space 31, the press-fit portion 21 is located on the mating portion 32.
Further, the bearing portion 22 is provided with a pre-splitting groove 23, and the pre-splitting groove 23 may be provided on the lower surface of the bearing portion 22 or may be provided on the upper surface of the bearing portion 22. In this embodiment, the pre-splitting groove 23 is disposed at a connection position between the bearing portion 22 and the press-connection portion 21, and is disposed on a lower surface of the bearing portion 22. The cross section of the pre-slit 23 is a triangular groove, but may be a groove of other shapes, such as a rectangle, etc., which is not limited by the present disclosure. Meanwhile, a displacement gap 33 is provided between the bearing portion 22 and the second member 4, and the displacement gap 33 may be a part of the accommodating space 31, which serves as a pre-breaking space of the bearing portion 22.
Fig. 2 is a schematic view of the one-way fastener separated from the washer in the fastening device shown in fig. 1. As shown in fig. 2, rotating the unidirectional fastener 1 in the screwing direction may fracture the bearing portion 22 along the pre-fracture groove 23 in the displacement gap 33, at this time, the press-connection portion 21 is separated from the bearing portion 22, and the first component 3 and the second component 4 are released, so that the first component 3 may be removed. As the load bearing portion 22 breaks and the unidirectional fastener 1 loses the stress imparted by the load bearing portion 22, the unidirectional fastener 1 can be manually removed in the reverse tightening direction.
Fig. 3 is a top view of the one-way fastener. The one-way fastener 1 may be a one-way screw, a one-way bolt, a one-way screw or a one-way stud. In the embodiment shown in fig. 1 to 3, the unidirectional fastener 1 is a unidirectional screw, the end portion of the unidirectional fastener 1 matched with the washer 2 is provided with a screwing groove 11, the screwing groove 11 is in a shape of a straight line, and two diagonal positions of the screwing groove 11 are provided with inclined planes 12 for preventing the unidirectional fastener 1 from being reversely screwed. The inclined surfaces 12 are arc surfaces extending outwards from one side of the bottom of the screwing groove 11, and the two inclined surfaces 12 can prevent rotation in the screwing direction of the screwing groove 11. In other words, the tool cannot be rotated in the reverse screwing direction (the opposite direction of the arrow in fig. 2) of the one-way fastener 1, and the tool slides out on the inclined surface 12, and cannot provide a rotational force to the one-way fastener 1. To improve the structural specificity of the inclined surface 13, to prevent the unidirectional fastener 1 from being easily screwed back by a tool, the length of the inclined surface 13 may be not more than half the length of the screwing groove 12 in the length direction of the screwing groove 12.
Fig. 4 is a cross-sectional view of a fastening device shown in another exemplary embodiment of the present disclosure. In this embodiment, the structure of the gasket is different from that in the above embodiment, and the rest is the same. The fastening means comprise a one-way fastener 1 and a washer 2, which one-way fastener, in cooperation with the washer 2, is capable of fastening a first part 3 to a second part 4. Wherein the washer 2 is crimped on the first component 3, the head of the unidirectional fastener 1 is crimped on the washer 2, and the tail is in threaded connection with the second component 4.
The washer 2 includes a press-fit portion 21 for press-fitting the first member 3, and a carrier portion 22 for supporting the one-way fastener 1, the press-fit portion 21 being detachably connected with the carrier portion 22. For example, the press-fit portion 21 is provided with a concave portion 211, the carrier portion 22 is provided with a convex portion 221, and when the press-fit portion 21 is engaged with the carrier portion 22, the convex portion 221 is overlapped in the concave portion 211. At least two protrusions 221 are provided, and the number of recesses 211 is set corresponding to the protrusions 221.
Fig. 5 is a schematic view of the one-way fastener separated from the washer in the one fastening device shown in fig. 4. As shown in fig. 4, the one-way fastener 1 is rotated in the screwing direction (arrow direction in fig. 2), the protrusion 221 is broken by pressure, and the pressure contact portion 21 is separated from the bearing portion 22. The gasket 2 is no longer crimped to the first part 3, so that the first part 3 and the second part 4 can be disassembled. In this way, only the bearing portion 22 is damaged, the pressure-bonding section 21 can be used continuously, the structure of the fastener can be fully utilized, and the pressure-bonding section 21 and the bearing portion 22 can be mounted and fixed easily.
Further, a displacement gap 33 is provided between the carrier 22 and the second member 4, and the displacement gap 33 may be a part of a receiving space 31 provided on the first member 3 for receiving the fastening device. Rotation of the one-way fastener 1 in the tightening direction moves the carrier 22 toward the displacement gap 33, the protrusion 221 of the carrier 22 deforms (including bending and breaking), the carrier 22 separates from the press-fit portion 21, and the press-fit portion 21 no longer presses the first member 3, so that the first member 3 can be removed from the second member 4.
According to the technical scheme disclosed by the embodiment, the first part 3 and the second part 4 are fastened through the unidirectional fastener 1 and the gasket 2, and the unidirectional fastener 1 can only rotate unidirectionally, so that the gasket 2 cannot be reused because the unidirectional fastener 1 needs to be screwed to break or damage the gasket 2 when the first part 3 and the second part 4 are disassembled, and the gasket 2 needs to be replaced after the first part 3 and the second part 4 are disassembled, so that the purpose of disassembly prevention is achieved.
The foregoing description of the preferred embodiments of the present disclosure is not intended to limit the disclosure, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present disclosure.
Claims (8)
1. A fastening device, comprising a unidirectional fastener and a washer, wherein the washer is in pressure connection with a first component, the head part of the unidirectional fastener is in pressure connection with the washer, and the tail part of the unidirectional fastener is in threaded connection with a second component so as to fasten the first component and the second component;
the unidirectional fastener can fracture the washer when rotated in the screwing direction so as to separate the head of the unidirectional fastener from the washer; wherein,,
the gasket comprises a crimping part and a bearing part connected with the crimping part, the crimping part and the bearing part are integrally arranged, and the unidirectional fastener is crimped with the bearing part so that the crimping part is crimped with the first component; a displacement gap is arranged between the bearing part and the second part, and the bearing part can be broken in the displacement gap by rotating the unidirectional fastener along the screwing direction.
2. The fastening device of claim 1, wherein the carrier portion is provided with a pre-split groove.
3. The fastening device according to claim 1, wherein a receiving space for receiving the washer is provided in the first member, and a fitting portion is provided in the receiving space, and the pressure-bonding portion is fitted to the first member so that the pressure-bonding portion pressure-bonds the first member.
4. The fastening device according to claim 1, wherein the end portion of the unidirectional fastener is provided with a tightening groove, the tightening groove is in a straight shape, and two diagonal positions of the tightening groove are provided with inclined surfaces for preventing the unidirectional fastener from being reversely tightened.
5. The fastening device of claim 4, wherein the inclined surface is an arcuate surface extending outwardly from one side of the tightening slot.
6. A fastening device, comprising a unidirectional fastener and a washer, wherein the washer is in pressure connection with a first component, the head part of the unidirectional fastener is in pressure connection with the washer, and the tail part of the unidirectional fastener is in threaded connection with a second component so as to fasten the first component and the second component;
the washer comprises a crimping part used for crimping the first component and a bearing part detachably connected with the crimping part, wherein the bearing part is used for supporting the unidirectional fastener, and the unidirectional fastener can be separated from the bearing part when rotating in the screwing direction so as to separate the head part of the unidirectional fastener from the washer; wherein,,
the compression joint part is overlapped with the bearing part, a displacement gap is arranged between the bearing part and the second part, the displacement gap is a part of a containing space arranged on the first part and used for containing the fastening device, and the unidirectional fastener is rotated along the screwing direction, so that the bearing part can move towards the displacement gap to deform and separate from the compression joint part.
7. The fastening device of claim 6, wherein the crimp portion has a recess and the carrier portion has a protrusion, the protrusion overlapping the recess when the crimp portion is mated with the carrier portion.
8. An electronic device comprising the fastening device of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710812627.0A CN107524688B (en) | 2017-09-11 | 2017-09-11 | Fastening device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710812627.0A CN107524688B (en) | 2017-09-11 | 2017-09-11 | Fastening device and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107524688A CN107524688A (en) | 2017-12-29 |
| CN107524688B true CN107524688B (en) | 2023-07-04 |
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ID=60736545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710812627.0A Active CN107524688B (en) | 2017-09-11 | 2017-09-11 | Fastening device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107524688B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110536550B (en) * | 2019-07-31 | 2020-12-15 | 华为技术有限公司 | PCB card assembly and electronic equipment |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87204853U (en) * | 1987-03-26 | 1987-11-04 | 薛奇伟 | One-way screw |
| JPH03140613A (en) * | 1989-10-23 | 1991-06-14 | Toopura:Kk | Thread fastening structure under stress perpendicular to shaft |
| JP5099548B2 (en) * | 2007-12-03 | 2012-12-19 | 学校法人東海大学 | Fastening structure |
| CN201155511Y (en) * | 2008-01-07 | 2008-11-26 | 华晶科技股份有限公司 | Electronic device and its detaching-proof screw |
| CN201196183Y (en) * | 2008-05-16 | 2009-02-18 | 文德顺 | Unidirectional anti-return bolt |
| CN202048080U (en) * | 2011-05-12 | 2011-11-23 | 保定奥普节能科技开发有限公司 | Anti-removal slotted screw |
| RU2639844C2 (en) * | 2012-11-20 | 2017-12-22 | Панасоник Эйвионикс Корпорейшн | Display installation system for reducing head injury criterion |
| CN104295593A (en) * | 2014-08-20 | 2015-01-21 | 无锡市第二标准件制造有限公司 | Bolt with anti-theft device |
| CN207145424U (en) * | 2017-09-11 | 2018-03-27 | 北京小米移动软件有限公司 | Fastener and electronic equipment |
-
2017
- 2017-09-11 CN CN201710812627.0A patent/CN107524688B/en active Active
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| Publication number | Publication date |
|---|---|
| CN107524688A (en) | 2017-12-29 |
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