CN114810751B - Multi-layer connection structure - Google Patents
Multi-layer connection structure Download PDFInfo
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- CN114810751B CN114810751B CN202110118682.6A CN202110118682A CN114810751B CN 114810751 B CN114810751 B CN 114810751B CN 202110118682 A CN202110118682 A CN 202110118682A CN 114810751 B CN114810751 B CN 114810751B
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- 230000000670 limiting effect Effects 0.000 claims abstract description 62
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
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- 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
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
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- 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
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
- Joining Of Building Structures In Genera (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
A multi-layer connecting structure comprises a first shell, a second shell, a third shell, a first connecting piece and a second connecting piece. The first shell comprises a positioning part, a limiting part and a fixing part. The second shell comprises a positioning groove, a limiting groove, a first through hole and a first mounting hole, wherein the limiting part is used for being embedded into the limiting groove, and the positioning part is used for being embedded into the positioning groove. The third shell comprises a second mounting hole corresponding to the first through hole and a fixing hole corresponding to the first mounting hole, and the fixing part is used for penetrating through the first through hole and extending into the second mounting hole. The first connecting piece is used for extending into the fixing hole from the first mounting hole so as to connect the second shell with the third shell. The second connecting piece is used for extending into and connecting with the fixing part through the second mounting hole so as to connect the three shells. The multi-layer connecting structure provided by the invention is simple in structure and convenient and quick to assemble and disassemble.
Description
Technical Field
The present invention relates to a multilayer connection structure.
Background
The connection modes for realizing a plurality of parts are various, but the traditional connection modes mostly adopt a plurality of screw connection modes, or hot melt connection modes, or ultrasonic welding modes and the like, so that the connection operation is inconvenient, and the exposed screw can also influence the appearance of the product.
In particular, the connection and fixation of the multi-layer components, which are complicated in structure or require miniaturization, are undoubtedly performed by adopting a traditional connection mode, so that the volume of the structure and the assembly difficulty are increased.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a multi-layer connection structure that can achieve rapid assembly connection of multi-layer connection members, avoiding the use of connection means such as welding or excessive screws.
The invention provides a multi-layer connecting structure which comprises a first shell, a second shell, a third shell, a first connecting piece and a second connecting piece. The first shell comprises a first surface and a second surface opposite to the first surface, wherein the first surface is provided with a positioning part, a limiting part and a fixing part in a protruding mode, and the positioning part, the limiting part and the fixing part are arranged on the first surface in a protruding mode. The second shell comprises a third surface and a fourth surface which is opposite to the third surface, the second shell is provided with a positioning groove, a limiting groove, a first through hole and a first mounting hole, the first through hole and the first mounting hole are all arranged through the third surface and the fourth surface, the limiting part is used for extending into the limiting groove to limit the second shell, and the positioning part is used for extending into the positioning groove to fix the second shell on the first shell. The third shell comprises a second mounting hole corresponding to the first through hole and a positioning hole corresponding to the first mounting hole, and the fixing part is used for penetrating through the first through hole and extending into the second mounting hole. The first connecting piece is used for extending into the positioning hole through the first mounting hole so as to connect the second shell with the third shell. The second connecting piece is used for extending into and connecting with the fixing part through the second mounting hole so as to enable the second shell, the third shell and the first shell to be connected.
In this embodiment, the positioning portion includes a first positioning member, and the first positioning member includes a first connecting arm disposed on the first surface and a first positioning block disposed on one end of the first connecting arm away from the first surface. The positioning groove comprises a first positioning groove, the first positioning groove comprises a first opening and a first accommodating cavity communicated with the first opening, the first connecting arm is used for accommodating the first opening, and the first positioning block is used for accommodating the first accommodating cavity and is clamped with the first positioning groove.
In this embodiment, the dimension of the first opening along the direction parallel to the third surface is greater than the dimension of the first positioning block along the direction parallel to the third surface.
In this embodiment, the positioning portion further includes a second positioning member, where the second positioning member includes a second connecting arm disposed on the first surface, a second positioning block disposed on one end of the second connecting arm away from the first surface, and a hook disposed on one end of the second positioning block away from the second connecting arm, where the hook extends toward the first surface. The positioning groove further comprises a second positioning groove, the second positioning groove comprises a second opening, a second accommodating cavity communicated with the second opening and a protruding block arranged on one side, close to the third surface, of the second accommodating cavity, the protruding block extends towards the fourth surface, the second connecting arm is used for being accommodated in the second opening, the second positioning block is used for being accommodated in the second accommodating cavity, and the clamping hook is used for being clamped with the protruding block.
In this embodiment, a dimension of the second opening along a direction parallel to the third surface is greater than a dimension of the second positioning block along a direction parallel to the third surface.
In this embodiment, the hook is one piece.
In this embodiment, this spacing portion is including two first spacing strips of relative setting and the second spacing strip of two this first spacing strips of connection. The limiting groove is formed by surrounding two first side walls which are oppositely arranged and a second side wall which is connected with the two first side walls, the limiting part is used for extending into the limiting groove, the first limiting strip abuts against the first side walls, and the second limiting strip abuts against the second side walls.
In this embodiment, two first side walls are protruded towards one side of the limiting portion to form a plurality of ribs, and the ribs are used for propping against two first limiting strips.
In this embodiment, the first sidewall includes a slope connected to the third surface and a vertical surface connected to the slope, the vertical surface is perpendicular to the third surface, and the slope forms an obtuse angle with the third surface.
In this embodiment, the spacing portion is an elastic component, the elastic component with spacing groove interference fit.
Compared with the prior art, the multi-layer connecting structure provided by the invention is a connecting structure of three-layer shells, adopts a clamping connecting mode to be combined with a small amount of screw connection, can realize the quick assembly of the multi-layer shells, has a simple overall structure, is convenient to quickly assemble and disassemble, does not need the traditional modes such as welding and the like, greatly reduces the use amount of screws, has fewer exposed screws, does not influence the appearance of the product, has a wide application range, and can be used for connecting and fixing the multi-layer shells in various scenes.
Drawings
Fig. 1 is a schematic structural diagram of a multi-layer connection structure according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of the multi-layer connection structure provided in fig. 1 along II-II.
Fig. 3 is a schematic structural view of a first housing according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of the first housing and the second housing after being connected according to an embodiment of the present invention.
Fig. 5 is a cross-sectional view along V-V of the first housing provided in fig. 4 connected to the second housing.
Fig. 6 is a cross-sectional view of the first housing provided in fig. 4, along the rear edge VI-VI, connected to the second housing.
Fig. 7 is a schematic structural diagram of a limit part embedded in a limit groove according to an embodiment of the present invention.
Fig. 8 is a cross-sectional view of the multi-layer connection structure provided in fig. 1 along line VIII-VIII.
Fig. 9 is a schematic structural view of a first mounting hole according to an embodiment of the present invention.
Fig. 10 is a schematic structural view of a second mounting hole according to an embodiment of the present invention.
Fig. 11 is a schematic structural view of a multi-layer connection structure according to another embodiment of the present invention.
Description of the main reference signs
The invention will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
The system embodiments described below are merely illustrative, and the division of the modules or circuits is merely a logical function division, and other manners of division may be implemented in practice. Furthermore, it is evident that the word "comprising" does not exclude other elements or steps, and that the singular does not exclude a plurality. Multiple units or means recited in the system claims may also be implemented by means of software or hardware by means of one and the same unit or means. The terms first, second, etc. are used to denote a name, but not any particular order.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 4 and 8, a multi-layer connection structure 1000 according to an embodiment of the invention is provided, wherein the multi-layer connection structure 1000 includes a first housing 1, a second housing 2, a third housing 3, a first connecting member 4 and a second connecting member 5. The first housing 1 includes a first surface 11 and a second surface 12 disposed opposite to the first surface 11, and the first surface 11 is provided with a positioning portion 13, a limiting portion 14, and a fixing portion 15 protruding away from the second surface 12. The second housing 2 includes a third surface 21 and a fourth surface 22 opposite to the third surface 21, wherein the third surface 21 is recessed toward the fourth surface 22 to form a positioning groove 23 and a limiting groove 24, and a first through hole 25 and a first mounting hole 26 are formed through the third surface 21 and the fourth surface 22. The third housing 3 includes a fifth surface 31 and a sixth surface 32 disposed opposite to the fifth surface 31, the fifth surface 31 being recessed toward the sixth surface 32 to form a positioning hole 33, and a second mounting hole 34 being formed through the fifth surface 31 and the sixth surface 32. The limiting part 14 is used for being embedded into the limiting groove 24 to limit the second shell 2; the positioning part 13 is used for being embedded into the positioning groove 23 so as to fix the second shell 2 on the first shell 1; the first mounting hole 26 corresponds to the positioning hole 33, and the first connecting piece 4 is used for penetrating through the first mounting hole 26 and extending into the positioning hole 33 so as to connect the second casing 2 with the third casing 3; the fixing portion 15 is configured to extend into the second mounting hole 34 through the first through hole 25, and the second connecting piece 5 is configured to connect with the fixing portion 15 through the second mounting hole 34, so as to connect the first housing 1, the second housing 2 and the third housing 3.
Referring to fig. 3, the first housing 1 has a substantially sheet-like structure, and the positioning portion 13, the limiting portion 14, and the fixing portion 15 are integrally formed with the first surface 11.
In the present embodiment, the first housing 1, the second housing 2, and the third housing 3 may be plastic housings.
Referring to fig. 2 to 4, the positioning portion 13 includes a first positioning member 131 and a second positioning member 132. The positioning groove 23 comprises a first groove 231 and a second groove 232, the first positioning member 131 is used for being embedded into the first groove 231, and meanwhile, the second positioning member 132 is used for being embedded into the second groove 232, so that the second housing 2 is primarily fixed on the first housing 1.
Referring to fig. 4 and fig. 5, in some embodiments, the first positioning member 131 includes a first connecting arm 1311 disposed on the first surface 11 and a first positioning block 1312 disposed on an end of the first connecting arm 1311 away from the first surface 11, where the first connecting arm 1311 and the first positioning block 1312 form an L-shaped structure. The first groove 231 includes a first opening 2311 and a first receiving cavity 2312 for receiving the first positioning block 1312, the first opening 2311 communicates with the first receiving cavity 2312, a width of the first receiving cavity 2312 along a direction parallel to the third surface 21 is greater than a width of the first opening 2311, and the first opening 2311 and the first receiving cavity 2312 form an L-shaped structure. The first positioning block 1312 is configured to be snapped into the first accommodating cavity 2312 through the first opening 2311, and the first connecting arm 1311 is located in the first opening 2311, so that the first positioning member 131 is snapped into the first slot 231.
In this embodiment, the dimension of the first opening 2311 along the direction parallel to the third surface 21 is greater than the dimension of the first positioning block 1312, so that the first positioning block 1312 can extend into the first opening 2311 and be blocked into the first accommodating cavity 2312. Meanwhile, the first connecting arm 1311 extends from the first surface 11 by a length equal to the depth of the first opening 2311, and when the first positioning member 131 is snapped into the first slot 231, the first surface 11 contacts the third surface 21.
In the present embodiment, the first groove 231 penetrates the third surface 21 and the fourth surface 22.
Referring to fig. 4 and 6, the second positioning member 132 includes a second connecting arm 1321 disposed on the first surface 11, a second positioning block 1322 disposed at an end of the second connecting arm 1321 away from the first surface 11, and a hook 1323 disposed at an end of the second positioning block 1322 away from the second connecting arm 1321, wherein the second connecting arm 1321 and the second positioning block 1322 are disposed in an L-shaped structure, and the hook 1323 extends toward the first surface 11. The second slot 232 includes a second opening 2321 and a second accommodating chamber 2322 communicating with the second opening 2321, a bump 2323 protruding toward the fourth surface 22 is disposed on a side of the second accommodating chamber 2322 close to the third surface 21, a width of the second accommodating chamber 2322 along a direction parallel to the third surface 21 is greater than a width of the second opening 2321, and the second opening 2321 and the second accommodating chamber 2322 form an L-shaped structure. The second positioning block 1322 is configured to be locked into the second accommodating cavity 2322 through the second opening 2321, and the protruding block 2323 is configured to lock the locking hook 1323, so as to achieve locking of the second positioning member 132 and the second slot 232.
In the present embodiment, the dimension of the second opening 2321 along the plane of the third surface 21 is greater than the dimension of the second positioning block 1322, so that the second positioning block 1322 can extend into the second opening 2321 and be blocked into the second accommodating cavity 2322. At the same time, the second connecting arm 1321 extends from the first surface 11 by a length equal to the depth of the second opening 2321, and when the second positioning element 132 is snapped into the second slot 232, the first surface 11 contacts the third surface 21.
In this embodiment, the second groove 232 penetrates the third surface 21 and the fourth surface 22.
In this embodiment, the hook 1323 is a spring, when the second positioning member 132 is inserted into the second slot 232, the bump 2323 extrudes the spring to deform the spring, so that the second positioning block 1322 is inserted into the second accommodating cavity 2322, and after the spring enters the second accommodating cavity 2322, the spring resumes the deformation and the bump 2323 to be engaged with position the second positioning member 132 in the second slot 232. By arranging the clamping hooks 1323 into elastic sheets, the operation is convenient during positioning, and the connection is stable.
Referring to fig. 3 and fig. 7, the limiting portion 14 includes two first limiting strips 141 disposed opposite to each other and a second limiting strip 142 connected to the two first limiting strips 141. The limiting groove 24 is formed by surrounding two first side walls 241 and a second side wall 242 connected with the two first side walls 241, the limiting portion 14 is embedded into the limiting groove 24, the first limiting bar 141 abuts against the first side wall 241, and the second limiting bar 142 abuts against the second side wall 242.
In the present embodiment, the two first side walls 241 are protruded toward one side of the limiting portion 14 to form a plurality of ribs 243, and the ribs 243 are used for enhancing the extrusion of the two first limiting bars 141, so that the limiting portion 14 is fastened in the limiting groove 24.
In this embodiment, referring to fig. 2, the rib 243 is curved along a section parallel to the third surface 21, and the curved rib 243 makes the limit portion 14 more smoothly embedded in the limit slot 24.
In this embodiment, the first side wall 241 includes a slope 2411 and a vertical surface 2412, the vertical surface 2412 is perpendicular to the third surface 21, and the slope 2411 and the third surface 21 form an obtuse angle, so that the size of the opening of the limiting groove 24 is larger than the size of the limiting portion 14, and the limiting portion 14 is conveniently embedded into the limiting groove 24.
Referring to fig. 9, referring to fig. 2 and 8 in combination, the first mounting hole 26 on the second housing 2 includes a first hole wall 261, a second hole wall 262 and a first step 263 disposed between the first hole wall 261 and the second hole wall 262, the first hole wall 261 encloses a second through hole 264, the second hole wall 262 encloses a third through hole 265, the second through hole 264 is coaxial with the third through hole 265, the aperture of the second through hole 264 is larger than the aperture of the third through hole 265, and the aperture of the positioning hole 33 on the third housing 3 is smaller than or equal to the aperture of the third through hole 265. The first connecting piece 4 includes a first connecting rod 41 and a first connecting head 42, the dimension of the first connecting head 42 along the direction parallel to the third surface 21 is larger than the dimension of the first connecting rod 41, the first connecting rod 41 extends into the positioning hole 33 through the second through hole 264 and the third through hole 265, and the first connecting head 42 abuts against the surface of the first step 263 near the second through hole 264 to realize the connection between the second housing 2 and the third housing 3.
In this embodiment, the hole wall of the positioning hole 33 is provided with an internal thread, the first connecting member 4 is a screw with a cap, the surface of the first connecting rod 41 is provided with an external thread engaged with the internal thread, and the connection between the second housing 2 and the third housing 3 is achieved by screwing the first connecting member 4 into the positioning hole 33.
In the present embodiment, the number of the first mounting holes 26 is two, and the number of the positioning holes 33 and the first connecting members 4 corresponding thereto are two. The second housing 2 and the third housing 3 can be initially connected and fixed by two first connecting pieces 4.
Referring to fig. 10, referring to fig. 2 and 8 in combination, the second mounting hole 34 on the third housing 3 includes a third hole wall 341, a fourth hole wall 342, and a second step portion 343 disposed between the third hole wall 341 and the fourth hole wall 342, wherein the third hole wall 341 encloses a fourth hole 344, the fourth hole wall 342 encloses a fifth hole 345, the fourth hole 344 and the fifth hole 345 are coaxial and communicated, and the aperture of the fourth hole 344 is larger than that of the fifth hole 345. The aperture of the first through hole 25 on the second housing 2 is smaller than or equal to the aperture of the fifth through hole 345. The fixing portion 15 on the first housing 1 is configured to extend into the fifth through hole 345 through the first through hole 25, the fixing portion 15 includes a column 151 and a hole 152 surrounded by the column 151, the hole 152 extends along a direction perpendicular to the first surface 11, and the opening direction faces the second housing 2. The second connecting piece 5 includes a second connecting rod 51 and a second connecting head 52, the dimension of the second connecting head 52 along the direction parallel to the third surface 21 is larger than the dimension of the second connecting rod 51, the second connecting rod 51 extends into the hole 152 of the fixing portion 15 through the fourth through hole 344 and the fifth through hole 345, and the second connecting head 52 abuts against the surface of the second step portion 343 near the fourth through hole 344, so as to realize the connection between the first housing 1, the second housing 2 and the third housing 3.
In the present embodiment, the inner side wall of the cylinder 151 is provided with an internal thread, the surface of the second connecting rod 51 is provided with an external thread engaged with the internal thread, and the second connecting member 5 is screwed into the fixing portion 15 to connect the first casing 1, the second casing 2 and the third casing 3.
In the present embodiment, the number of the second mounting holes 34 is two, and the number of the corresponding first through holes 25, fixing portions 15, and second connectors 5 is two. The first shell 1, the second shell 2 and the third shell 3 are further connected and fixed through the two second connecting pieces 5, connection of multiple shells is achieved, excessive screws or welding is avoided, and meanwhile the influence on the appearance of a product due to the fact that excessive screws are exposed can be avoided.
Referring to fig. 1 to 8 in combination, the method for assembling the multi-layer connection structure 1000 according to the present invention includes the following steps:
first, the second casing 2 and the third casing 3 are connected and fixed by the first connector 4.
Then, the first positioning element 131, the second positioning element 132 and the limiting portion 14 on the first housing 1 are clamped into the corresponding first slot 231, second slot 232 and limiting slot 24 of the second housing 2, and the fixing portion 15 on the first housing 1 extends into the second mounting hole 34 through the first through hole 25 of the second housing 2, so as to achieve primary fixing.
Next, the second connector 5 is screwed into the hole 152 of the fixing portion 15 through the second mounting hole 34, and finally the connection and fixation of the first casing 1, the second casing 2, and the third casing 3 are achieved.
The multilayer connection structure 1000 is simple and quick to connect and fix, the traditional modes of welding, screw connection and the like are not needed, the use amount of screws is greatly reduced, and the appearance of a product is not influenced.
Referring to fig. 11, the second embodiment of the present invention further provides a multi-layer connection structure 200, and the multi-layer connection structure 200 is different from the multi-layer connection structure 1000 of the first embodiment mainly in that the limiting portion 16 is an elastic member, the width of the elastic member is slightly larger than the width of the limiting groove 24, and the limiting portion 16 and the limiting groove 24 are mutually fixed by interference fit, so as to realize the limiting effect on the second housing 2. It should be noted that, within the scope of the spirit or essential characteristics of the present invention, each specific solution applicable to the first embodiment may also be correspondingly applicable to the second embodiment, which is not described herein for the sake of brevity and avoiding repetition. In this embodiment, the limiting portion 16 and the limiting groove 24 are fixed by interference fit, so as to realize a limiting effect on the second housing 2, so that the assembly is convenient, and meanwhile, the stability of the second housing 2 can be enhanced.
Compared with the prior art, the multi-layer connecting structure provided by the invention is a connecting structure of three-layer shells, adopts a clamping connecting mode to be combined with a small amount of screw connection, can realize the quick assembly of the multi-layer shells, has a simple overall structure, is convenient to quickly assemble and disassemble, does not need the traditional modes such as welding and the like, greatly reduces the use amount of screws, has fewer exposed screws, does not influence the appearance of the product, has a wide application range, and can be used for connecting and fixing the multi-layer shells in various scenes.
Claims (10)
1. A multi-layer connection structure, comprising:
the first shell comprises a first surface and a second surface which is opposite to the first surface, wherein the first surface is provided with a positioning part, a limiting part and a fixing part in a protruding way and is away from the second surface;
the second shell comprises a third surface and a fourth surface which is opposite to the third surface, the second shell is provided with a positioning groove, a limiting groove, a first through hole and a first mounting hole, the first through hole and the first mounting hole penetrate through the third surface and the fourth surface, the limiting part is used for extending into the limiting groove to limit the second shell, and the positioning part is used for extending into the positioning groove to fix the second shell on the first shell;
the third shell comprises a second mounting hole corresponding to the first through hole and a positioning hole corresponding to the first mounting hole, and the fixing part is used for penetrating through the first through hole and extending into the second mounting hole;
the first connecting piece is used for extending into the positioning hole through the first mounting hole so as to connect the second shell with the third shell; and
and the second connecting piece is used for extending into the second mounting hole and connecting with the fixing part so as to connect the second shell, the third shell and the first shell.
2. The multi-layered connecting structure of claim 1, wherein the positioning portion includes a first positioning member including a first connecting arm provided to the first surface and a first positioning block provided to an end of the first connecting arm away from the first surface;
the positioning groove comprises a first positioning groove, the first positioning groove comprises a first opening and a first accommodating cavity communicated with the first opening, the first connecting arm is used for accommodating the first opening, and the first positioning block is used for accommodating the first accommodating cavity and is clamped with the first positioning groove.
3. The multi-layer connection of claim 2, wherein a dimension of the first opening in a direction parallel to the third surface is greater than a dimension of the first positioning block in a direction parallel to the third surface.
4. The multi-layer connecting structure according to claim 2, wherein the positioning portion further comprises a second positioning member, the second positioning member comprises a second connecting arm arranged on the first surface, a second positioning block arranged at one end of the second connecting arm far away from the first surface, and a hook arranged at one end of the second positioning block far away from the second connecting arm, and the hook extends towards the first surface;
the positioning groove further comprises a second positioning groove, the second positioning groove comprises a second opening, a second accommodating cavity communicated with the second opening and a protruding block arranged on one side, close to the third surface, of the second accommodating cavity, the protruding block extends towards the fourth surface, the second connecting arm is used for being accommodated in the second opening, the second positioning block is used for being accommodated in the second accommodating cavity, and the clamping hook is used for being clamped with the protruding block.
5. The multi-layer connection of claim 4, wherein a dimension of the second opening in a direction parallel to the third surface is greater than a dimension of the second positioning block in a direction parallel to the third surface.
6. The multi-layer connecting structure of claim 4, wherein the hook is a spring.
7. The multi-layered connecting structure according to claim 1, wherein the stopper includes two first stopper pieces arranged opposite to each other and a second stopper piece connecting the two first stopper pieces;
the limiting groove is formed by surrounding two first side walls which are oppositely arranged and a second side wall which is connected with the two first side walls, the limiting part is used for extending into the limiting groove, the first limiting strip abuts against the first side walls, and the second limiting strip abuts against the second side walls.
8. The multi-layered connecting structure according to claim 7, wherein two of the first side walls are protruded toward one side of the limiting portion to form a plurality of ribs, and the ribs are used for abutting against two of the first limiting strips.
9. The multi-layer connection of claim 7, wherein the first sidewall includes a bevel connected to the third surface and a perpendicular surface connected to the bevel, the perpendicular surface being perpendicular to the third surface, the bevel being at an obtuse angle with the third surface.
10. The multi-layer connecting structure of claim 1, wherein the limiting portion is an elastic member, and the elastic member is in interference fit with the limiting groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110118682.6A CN114810751B (en) | 2021-01-28 | 2021-01-28 | Multi-layer connection structure |
| TW110115691A TWI787801B (en) | 2021-01-28 | 2021-04-29 | Multilayer connection structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110118682.6A CN114810751B (en) | 2021-01-28 | 2021-01-28 | Multi-layer connection structure |
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| Publication Number | Publication Date |
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| CN114810751A CN114810751A (en) | 2022-07-29 |
| CN114810751B true CN114810751B (en) | 2023-07-07 |
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| CN202110118682.6A Active CN114810751B (en) | 2021-01-28 | 2021-01-28 | Multi-layer connection structure |
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| TW (1) | TWI787801B (en) |
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| CN102606571A (en) * | 2011-01-19 | 2012-07-25 | 深圳富泰宏精密工业有限公司 | Connector and electrode device with connector |
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| CN202301343U (en) * | 2011-09-20 | 2012-07-04 | 松下家电研究开发（杭州）有限公司 | Clamping hook structure capable of preventing disconnection after embedding and conditioner with clamping hook structure |
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| TWM555418U (en) * | 2017-10-23 | 2018-02-11 | Ajoho Enterprise Co Ltd | Heat sink mounting bracket |
| CN208242101U (en) * | 2018-04-12 | 2018-12-14 | 石家庄铁路职业技术学院 | A kind of submodule lap device of multilayer screen device |
| CN111285413A (en) * | 2018-12-06 | 2020-06-16 | 富泰华工业（深圳）有限公司 | Water purifier casing and water purifier |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202229737A (en) | 2022-08-01 |
| CN114810751A (en) | 2022-07-29 |
| TWI787801B (en) | 2022-12-21 |
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