CN109578430B - Waterproof box connection hinge and manufacturing method thereof - Google Patents
Waterproof box connection hinge and manufacturing method thereof Download PDFInfo
- Publication number
- CN109578430B CN109578430B CN201811539510.0A CN201811539510A CN109578430B CN 109578430 B CN109578430 B CN 109578430B CN 201811539510 A CN201811539510 A CN 201811539510A CN 109578430 B CN109578430 B CN 109578430B
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- China
- Prior art keywords
- blind hole
- screw
- thread
- waterproof box
- waterproof
- 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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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 239000011241 protective layer Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000004080 punching Methods 0.000 claims description 6
- 229910000619 316 stainless steel Inorganic materials 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/12—Pivotal connections incorporating flexible connections, e.g. leaf springs
-
- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
-
- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casings For Electric Apparatus (AREA)
- Hinges (AREA)
Abstract
The invention discloses a waterproof box connection hinge and a manufacturing method thereof, wherein the waterproof box connection hinge comprises a screw, a stop screw and a connecting piece, a first blind hole is formed in one end of the screw, a first thread is arranged at the end of the screw, and the length of the first thread is smaller than that of the first blind hole; one end of the stop screw is provided with a second blind hole, the outer wall of the stop screw is provided with a second thread, and the second thread part is positioned at the outer side of the second blind hole; the two ends of the connecting piece are respectively arranged in the first blind hole and the second blind hole, are in clearance fit with the first blind hole and the second blind hole, and comprise a steel wire rope and a protective layer wrapping the outer wall of the steel wire rope; when the screw is screwed, the connecting piece drives the stop-pair screw to rotate. The invention is suitable for hinging the upper cover and the lower shell of the waterproof box, and can avoid the problem that the waterproof performance is reduced due to the fact that the connecting hinge is installed in the later period.
Description
Technical Field
The invention belongs to the technical field of hinges, and particularly relates to a waterproof box connection hinge and a manufacturing method thereof.
Background
The waterproof box is a shell which can be applied in a relatively severe environment and can prevent water from entering the circuit, the instrument and the like in the box from affecting the performance of the waterproof box. In many existing working conditions, the upper cover and the lower shell of the waterproof box are required to be incompletely separated, and the upper cover is internally provided with a circuit board and the circuit board in the lower shell is required to be connected by a fixed-length data line, for example, when the internal device of the waterproof box is maintained in a climbing mode, the upper cover is prevented from falling off, and the hinge is required to be arranged between the upper cover and the lower shell of the waterproof box to realize connection. At present, in order to meet the requirement, a hinge is designed in the casting process of the waterproof box or the hinge is additionally installed between the upper cover and the lower shell of the formed waterproof box through secondary processing, so that the manufacturing cost of a mould is increased to a great extent, or the waterproof performance of the waterproof box is reduced because the upper cover and the lower shell are perforated in the secondary processing process.
Disclosure of Invention
In view of the above problems, the invention provides a waterproof box connection hinge and a manufacturing method thereof, which are suitable for hinging an upper cover and a lower shell of a waterproof box, and can avoid the problem that the waterproof performance is reduced due to the fact that the connection hinge is installed at a later stage.
The technical aim is achieved, and the technical effects are achieved by the following technical scheme:
In a first aspect, the present invention provides a waterproof case connection hinge comprising:
the screw is provided with a first blind hole at one end, and a first thread is arranged at the end, and the length of the first thread is smaller than that of the first blind hole;
the anti-friction screw is characterized in that one end of the anti-friction screw is provided with a second blind hole, the outer wall of the anti-friction screw is provided with a second thread, and the second thread part is positioned at the outer side of the second blind hole;
The two ends of the connecting piece are respectively arranged in the first blind hole and the second blind hole, and are in clearance fit with the first blind hole and the second blind hole, and the connecting piece comprises a steel wire rope and a protective layer wrapped on the outer wall of the steel wire rope;
When the screw is screwed, the connecting piece drives the stop-pair screw to rotate.
As a further improvement of the invention, the first blind hole and the second blind hole are formed by drilling through a drill bit.
As a further improvement of the invention, the protective layer is made of a rubber material.
As a further improvement of the invention, the outer diameter of the steel wire rope is 4mm; the outer diameter of the protective layer is 6mm.
As a further improvement of the invention, the steel cord is made of 316 stainless steel material.
In a second aspect, the present invention provides a method for manufacturing a waterproof case connection hinge, including:
Punching one end of the screw far away from the root to form a first blind hole, cutting and removing a section of thread at the root according to set requirements, wherein the rest of the thread is called a first thread, and the length of the first thread is smaller than that of the first blind hole;
Punching one end, far away from the root, of the stop screw to form a second blind hole, cutting and removing a section of thread at the end according to set requirements, wherein the rest of the thread is called a second thread, and the second thread part is positioned at the outer side of the second blind hole;
placing one end of a connecting piece into the first blind hole, and fixing the end part of the connecting piece in the first blind hole by utilizing a clamping piece to cut and remove threads on a screw;
And placing the other end of the connecting piece into the second blind hole, and fixing the other end of the connecting piece in the second blind hole by utilizing the clamping piece to cut and remove threads on the stop screw.
As a further development of the invention, the clamping element is a hydraulic clamp.
As a further improvement of the invention, the connecting piece comprises a steel wire rope and a protective layer wrapped on the outer wall of the steel wire rope.
As a further improvement of the invention, the outer diameter of the steel wire rope is 4mm; the outer diameter of the protective layer is 6mm.
As a further improvement of the invention, the steel cord is made of 316 stainless steel material.
Compared with the prior art, the invention has the beneficial effects that:
The waterproof box connecting hinge provided by the invention has the characteristics of high strength, sufficient rigidity, convenience in replacement and low cost, is very suitable for hinging between the upper cover and the lower shell of the waterproof box, and has no problem of reduced waterproof performance caused by secondary processing of the waterproof box because the hinge adopts the original mounting hole (screw hole) of the waterproof box in the mounting process.
The manufacturing method of the waterproof box connection hinge provided by the invention adopts the screws and the stop screws in the prior art, the screws and the stop screws are matched for cutting and removing threads, and the fixing of the connecting piece, the stop screws and the screws is realized by utilizing the clamping piece at the thread removing position, so that the whole realization process is simple, and the production cost is low.
Drawings
FIG. 1 is a schematic view of a waterproof case connection hinge according to the present invention;
fig. 2 is a front view showing the case upper cover a when the hinge of the present invention is applied to the waterproof case and opened;
fig. 3 is a plan view of the waterproof box upper cover a when the hinge of the present invention is applied to the waterproof box and opened;
Fig. 4 is a front view showing the case upper cover a when the hinge of the present invention is applied to the waterproof case and mounted;
Fig. 5 is a plan view of the waterproof case upper cover a when the hinge in the present invention is applied to the waterproof case.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The principle of application of the invention is described in detail below with reference to the accompanying drawings.
Example 1
The embodiment of the invention provides a waterproof box connection hinge, which comprises the following components:
A screw 1, wherein one end of the screw 1 is provided with a first blind hole 2, and a first thread 3 is arranged at the end, and the length of the first thread 3 is smaller than that of the first blind hole 2; in a specific implementation manner of the embodiment of the present invention, the first blind hole 2 is formed by drilling with a drill; the screw 1 can be a common screw 1 in the prior art, and can be obtained directly from the market;
A second blind hole 5 is formed in one end of the stop screw 4, a second thread 6 is formed in the outer wall of the second blind hole 5, and the second thread 6 is partially positioned outside the second blind hole 5; in a specific implementation manner of the embodiment of the present invention, the second blind hole 5 is formed by drilling with a drill;
the two ends of the connecting piece are respectively arranged in the first blind hole 2 and the second blind hole 5, and are in clearance fit with the first blind hole 2 and the second blind hole 5, and the connecting piece comprises a steel wire rope 7 and a protective layer 8 wrapping the outer wall of the steel wire rope 7; when the screw 1 is screwed, the connecting piece drives the stop screw 4 to rotate; in a preferred implementation of the embodiment of the invention, the protective layer 8 is made of rubber material and is used for preventing the damage of the surface scratch and the threaded hole of the waterproof box caused by the steel wire rope 7; the outer diameter of the steel wire rope 7 is 4mm; the outer diameter of the protective layer 8 is 6mm; the steel wire rope 7 is made of 316 stainless steel material.
To sum up: when the hinge of the invention is used for fixing or releasing the upper cover A of the waterproof box and the lower shell B of the waterproof box, the hinge specifically comprises the following operations:
(1) Covering the top of a waterproof box lower shell B with a waterproof box upper cover A, and aligning mounting holes arranged on the waterproof box upper cover A and the waterproof box lower shell B, wherein the mounting holes are screw holes;
(2) The hinges are placed into corresponding mounting holes, then the screw 1 is screwed by a screw driver, the screw 1 drives the stop screw 4 to rotate together through the connecting piece, and the waterproof box upper cover A and the waterproof box lower shell B are fixed by connecting the first threads 3 with the mounting threaded holes of the waterproof box lower shell B; as shown in fig. 4-5, when the waterproof box upper cover a is fixed on the waterproof box lower shell B, since the first thread 3 on the screw 1 is connected with the installation threaded hole of the waterproof box lower shell B, the hinge connection piece and the stop screw 4 are all inserted into the installation process hole of the waterproof box lower shell B, so that no influence is caused on the installation of the waterproof box, and only two screws 1 and the other two screws 1 of the waterproof box are used for fixing the waterproof box upper cover a and the waterproof box lower shell B. The waterproof case with the hinge assembly as shown in fig. 4 and 5 is completely indistinguishable in appearance from a conventional waterproof case;
(3) When the hinge of the present invention is applied to the waterproof case, as shown in fig. 2 to 3, the screw 1 is screwed by a screwdriver, the screw 1 drives the stop screw 4 to rotate together by the connection member, the waterproof case upper cover a is detached from the waterproof case lower case B, and the connection member still connects the waterproof case upper cover a and the waterproof case lower case B since the stop screw 4 is also at the lower part of the thread in the waterproof case lower case B, so that the operator does not worry about falling off when opening the waterproof case upper cover a.
Embodiment 2 the invention provides a method for manufacturing a waterproof box connection hinge, which comprises the following steps:
Punching one end, far away from the root, of the screw 1 to form a first blind hole 2, cutting and removing a section of thread at the root according to set requirements, wherein the rest of the thread is called a first thread 3, and the length of the first thread 3 is smaller than that of the first blind hole 2;
Punching one end, far away from the root, of the stop screw 4 to form a second blind hole 5, cutting and removing a section of thread at the end according to set requirements, wherein the rest of the thread is called a second thread 6, and the second thread 6 is partially positioned outside the second blind hole 5;
placing one end of a connecting piece into the first blind hole 2, and fixing the end of the connecting piece into the first blind hole 2 by utilizing a clamping piece at a thread removing position cut on the screw 1; in a preferred implementation of the embodiment of the invention, the connecting piece comprises a steel wire rope 7 and a protective layer 8 wrapped on the outer wall of the steel wire rope 7; placing the other end of the connecting piece into the second blind hole 5, and fixing the other end of the connecting piece into the second blind hole 5 by utilizing a clamping piece at a thread removing position cut on the stop screw 4; the clamping piece is a hydraulic clamp; the outer diameter of the steel wire rope 7 is 4mm; the outer diameter of the protective layer 8 is 6mm, and the steel wire rope 7 is made of 316 stainless steel material; the length of the steel wire rope 7 is about 70 mm.
To sum up:
The waterproof box connecting hinge has the characteristics of high strength, sufficient rigidity, convenient replacement and low cost, is very suitable for hinging between the upper cover and the lower shell of the waterproof box, and has no problem of reduced waterproof performance caused by secondary processing of the waterproof box because the hinge adopts the original mounting hole (screw hole) of the waterproof box in the mounting process.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A waterproof case connection hinge, comprising:
the screw is provided with a first blind hole at one end, and a first thread is arranged at the end, and the length of the first thread is smaller than that of the first blind hole;
the anti-friction screw is characterized in that one end of the anti-friction screw is provided with a second blind hole, the outer wall of the anti-friction screw is provided with a second thread, and the second thread part is positioned at the outer side of the second blind hole;
The two ends of the connecting piece are respectively arranged in the first blind hole and the second blind hole, and are in clearance fit with the first blind hole and the second blind hole, and the connecting piece comprises a steel wire rope and a protective layer wrapped on the outer wall of the steel wire rope;
Covering the top of a waterproof box lower shell B with a waterproof box upper cover A, and aligning mounting holes arranged on the waterproof box upper cover A and the waterproof box lower shell B, wherein the mounting holes are screw holes;
placing the hinges into the corresponding mounting holes; the hinge adopts the original mounting hole of the waterproof box in the mounting process;
When the screw is screwed, the connecting piece drives the stop-pair screw to rotate;
The screws are screwed, the screws drive the stop-pair screws to rotate together through the connecting pieces, and the waterproof box upper cover A and the waterproof box lower shell B are fixed by connecting first threads with the installation threaded holes of the waterproof box lower shell B;
The screws are screwed, the screws drive the stop-pair screws to rotate together through the connecting pieces, the waterproof box upper cover A is detached from the waterproof box lower shell B, and the connecting pieces still connect the waterproof box upper cover A with the waterproof box lower shell B because the stop-pair screws are arranged at the lower parts of threads in the waterproof box lower shell;
The manufacturing method of the waterproof box connection hinge comprises the following steps: punching one end of the screw far away from the root to form a first blind hole, cutting and removing a section of thread at the root according to set requirements, wherein the rest of the thread is called a first thread, and the length of the first thread is smaller than that of the first blind hole;
Punching one end, far away from the root, of the stop screw to form a second blind hole, cutting and removing a section of thread at the end according to set requirements, wherein the rest of the thread is called a second thread, and the second thread part is positioned at the outer side of the second blind hole;
placing one end of a connecting piece into the first blind hole, and fixing the end part of the connecting piece in the first blind hole by utilizing a clamping piece to cut and remove threads on a screw;
And placing the other end of the connecting piece into the second blind hole, and fixing the other end of the connecting piece in the second blind hole by utilizing the clamping piece to cut and remove threads on the stop screw.
2. A waterproof case connection hinge according to claim 1, wherein: the first blind hole and the second blind hole are formed by drilling through a drill bit.
3. A waterproof case connection hinge according to claim 1, wherein: the protective layer is made of a rubber material.
4. A waterproof case connection hinge according to claim 1, wherein: the outer diameter of the steel wire rope is 4mm; the outer diameter of the protective layer is 6mm.
5. A waterproof case connection hinge according to claim 1, wherein: the steel wire rope is made of 316 stainless steel material.
6. A waterproof case connection hinge according to claim 1, wherein: the clamping piece is a hydraulic clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539510.0A CN109578430B (en) | 2018-12-17 | 2018-12-17 | Waterproof box connection hinge and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539510.0A CN109578430B (en) | 2018-12-17 | 2018-12-17 | Waterproof box connection hinge and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109578430A CN109578430A (en) | 2019-04-05 |
| CN109578430B true CN109578430B (en) | 2024-05-07 |
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ID=65930286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811539510.0A Active CN109578430B (en) | 2018-12-17 | 2018-12-17 | Waterproof box connection hinge and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109578430B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI130250B (en) * | 2022-01-14 | 2023-05-10 | Katko Oy | An electrical mounting enclosure |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB121340A (en) * | 1917-12-11 | 1918-12-11 | Ernest Dobson | Improvements in or connected with Watertight Closures for Boxes and the like. |
| GB865612A (en) * | 1957-06-11 | 1961-04-19 | Nat Screw & Mfg Company | Improvements relating to blind screw and nut fasteners |
| DE3636574A1 (en) * | 1985-04-29 | 1988-05-05 | Friedhelm Rose | Waterproof housing, especially for the encapsulation of electrical and electronic components |
| DE29703430U1 (en) * | 1997-02-26 | 1997-04-10 | Hubert Waltermann Eisenwarenfabrik und Gesenkschmiede GmbH & Co., 58802 Balve | Arrangement for fastening components to a wire rope |
| DE29705766U1 (en) * | 1997-04-01 | 1997-09-18 | Jakob Ag, Trubschachen | Rope connection for the end of a wire rope |
| EP1087481A1 (en) * | 1999-09-27 | 2001-03-28 | Rolec Gehäuse-Systeme GmbH | Box, especially for the installation of electric or electronic components |
| WO2003071071A1 (en) * | 2002-02-21 | 2003-08-28 | Sotirios Papadimitriou | Mechanically adjustable hinge for doors and windows |
| CN201502604U (en) * | 2009-10-16 | 2010-06-09 | 余露 | Waterproofing fastening piece |
| CN201865473U (en) * | 2011-03-18 | 2011-06-15 | 浙江双雄门业有限公司 | Three-dimensional adjustable back-flap hinge |
| US9496697B1 (en) * | 2015-10-16 | 2016-11-15 | Imagineering Plus Plus Llc | Roof top junction box |
| CN206225937U (en) * | 2016-12-07 | 2017-06-06 | 陈建业 | A kind of waterproof junction box |
| CN207514056U (en) * | 2017-10-20 | 2018-06-19 | 上海大隆机器厂有限公司 | A kind of self-adjustable fastening structure |
| CN209557480U (en) * | 2018-12-17 | 2019-10-29 | 苏州曼德克光电有限公司 | A kind of compartment connects hinge |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2529634B (en) * | 2014-08-26 | 2017-04-19 | Kwikbolt Ltd | Removable blind fastener for joining components |
-
2018
- 2018-12-17 CN CN201811539510.0A patent/CN109578430B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB121340A (en) * | 1917-12-11 | 1918-12-11 | Ernest Dobson | Improvements in or connected with Watertight Closures for Boxes and the like. |
| GB865612A (en) * | 1957-06-11 | 1961-04-19 | Nat Screw & Mfg Company | Improvements relating to blind screw and nut fasteners |
| DE3636574A1 (en) * | 1985-04-29 | 1988-05-05 | Friedhelm Rose | Waterproof housing, especially for the encapsulation of electrical and electronic components |
| DE29703430U1 (en) * | 1997-02-26 | 1997-04-10 | Hubert Waltermann Eisenwarenfabrik und Gesenkschmiede GmbH & Co., 58802 Balve | Arrangement for fastening components to a wire rope |
| DE29705766U1 (en) * | 1997-04-01 | 1997-09-18 | Jakob Ag, Trubschachen | Rope connection for the end of a wire rope |
| EP1087481A1 (en) * | 1999-09-27 | 2001-03-28 | Rolec Gehäuse-Systeme GmbH | Box, especially for the installation of electric or electronic components |
| WO2003071071A1 (en) * | 2002-02-21 | 2003-08-28 | Sotirios Papadimitriou | Mechanically adjustable hinge for doors and windows |
| CN201502604U (en) * | 2009-10-16 | 2010-06-09 | 余露 | Waterproofing fastening piece |
| CN201865473U (en) * | 2011-03-18 | 2011-06-15 | 浙江双雄门业有限公司 | Three-dimensional adjustable back-flap hinge |
| US9496697B1 (en) * | 2015-10-16 | 2016-11-15 | Imagineering Plus Plus Llc | Roof top junction box |
| CN206225937U (en) * | 2016-12-07 | 2017-06-06 | 陈建业 | A kind of waterproof junction box |
| CN207514056U (en) * | 2017-10-20 | 2018-06-19 | 上海大隆机器厂有限公司 | A kind of self-adjustable fastening structure |
| CN209557480U (en) * | 2018-12-17 | 2019-10-29 | 苏州曼德克光电有限公司 | A kind of compartment connects hinge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109578430A (en) | 2019-04-05 |
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