CN111987684B - Vehicle shell via hole device - Google Patents
Vehicle shell via hole device Download PDFInfo
- Publication number
- CN111987684B CN111987684B CN202010812711.4A CN202010812711A CN111987684B CN 111987684 B CN111987684 B CN 111987684B CN 202010812711 A CN202010812711 A CN 202010812711A CN 111987684 B CN111987684 B CN 111987684B
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- male
- shell
- female
- groove
- inner core
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/013—Sealing means for cable inlets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention belongs to the technical field of vehicle cable installation, and discloses a vehicle shell via hole device which comprises a male end assembly and a female end assembly, wherein the male end assembly comprises a male shell module and a rubber male end inner core arranged in the male shell module, a terminal groove is formed in the male shell module, a clamping protrusion is arranged in the terminal groove, a line passing hole is formed in the male end inner core, the female end assembly comprises a female shell module and a rubber female end inner core arranged in the female shell module, a terminal post is arranged on the female shell module, a guide groove is formed in the outer wall of the terminal post, a line passing hole is formed in the female end inner core, when the terminal post extends into the terminal groove, the clamping protrusion can slide along the guide groove, and when the clamping protrusion slides to the bottom of the guide groove, the clamping protrusion locks the male end assembly and the female end assembly through the side wall abutting against the guide groove. The invention not only ensures that the cable can pass through the vehicle shell without being disconnected, but also ensures the stability and reliability of the whole vehicle shell via hole device.
Description
Technical Field
The invention relates to the technical field of vehicle cable installation, in particular to a vehicle shell via hole device.
Background
On some existing vehicles with special requirements, special equipment is usually arranged outside the roof of the vehicle, and the vehicles have complex use environments, such as climate, severe cold, rain, snow, high temperature and the like; the communication quality requirement is high in the fields of complex use scenes, rescue and relief work, emergency communication, field operation, scientific research and the like, wires of special equipment required to be connected with a host and a car roof cannot be disconnected when passing through the car roof, and meanwhile, the high reliability of the via hole device under a complex use environment is ensured.
In the prior art, the electric connection is usually realized by adopting a butt joint mode, the sealing protection is realized by adopting a via hole rubber sleeve, and the mode cannot adapt to the complex use environment and the use scene of special equipment on a vehicle with special requirements.
Disclosure of Invention
The invention aims to provide a vehicle shell via device, which can safely and reliably realize the penetration of a cable.
In order to achieve the purpose, the invention adopts the following technical scheme:
a vehicle housing via apparatus, comprising:
the male end assembly comprises a male shell module and a rubber male end inner core arranged in the male shell module, wherein the male shell module is provided with an end connecting groove, a clamping protrusion is arranged in the end connecting groove, and the male end inner core is provided with a wire passing hole;
female end subassembly, female end subassembly detachably install on the shell of vehicle, including female shell module with set up in female end inner core of rubber system in the female shell module, be provided with the termination post on the female shell module, be provided with the guide slot on the outer wall of termination post, be provided with the line hole on the female end inner core, the termination post stretches into during the termination inslot, the card is protruding can be followed the guide slot slides, the card protruding slides extremely during the tank bottom of guide slot, the card is protruding through supporting tightly the lateral wall locking of guide slot public end subassembly with female end subassembly, public end subassembly with when female end subassembly locking links to each other, public end inner core with cross the line hole on the female end inner core and just to the intercommunication so that the cable passes.
Preferably, the male housing module comprises:
the end connecting groove is arranged at one end of the connecting nut;
the male-end inner shell is prepared from aluminum alloy and comprises an accommodating part, a limiting part and a threaded part which are sequentially connected in the axial direction, an accommodating groove is formed in the end part of the accommodating part, the outer diameter of the limiting part is larger than that of the accommodating part and the threaded part, threads are arranged on the outer wall of the threaded part, the male-end inner core is clamped in the accommodating groove, the limiting part is attached to the bottom of the end connecting groove, and the threaded part penetrates out of the bottom of the end connecting groove;
the inner wall of the switching nut is provided with threads which are in threaded connection with the threaded part, and the limiting part and the switching nut are respectively positioned on the inner side and the outer side of the bottom of the end connecting groove.
As preferred, be provided with the location mouth on the lateral wall of public end inner shell, be provided with the constant head tank on the lateral wall of public end inner core, anti-slot has been seted up to the tip of end connection post, be provided with the location strip on the inner wall of anti-slot, the end connection post stretches into when holding the inslot, public end inner shell with public end inner core stretches into in the anti-slot, the location strip passes location mouth card is gone into in the constant head tank, so that public end inner core with it is just right to cross the line hole on the female end inner core.
Preferably, the male housing module further comprises:
the wire sealing body is provided with a wire passing hole;
the wire sealing body is arranged in the sleeve, the sleeve is arranged in the adapter nut, and the adapter nut presses the wire sealing body against the outer side of the bottom of the end connecting groove through the sleeve.
Preferably, a first washer is clamped between the adapter nut and the connecting nut.
Preferably, the male housing module further comprises a corrugated spring, and the corrugated spring is clamped between the limiting part and the bottom of the end connection groove.
Preferably, a second washer is clamped between the limiting part and the corrugated spring.
Preferably, the female housing module includes:
the female end shell is prepared from aluminum alloy, the female end inner core is arranged in the female end shell, the female end shell comprises an end connection part, a support part and a penetration part which are sequentially connected along the axial direction, the end connection part is used as the end connection column, the outer diameter of the support part is larger than that of the end connection part and the penetration part, and threads are arranged on the outer wall of the penetration part;
the penetrating part penetrates through the shell of the vehicle and then is in threaded connection with the fixing nut, and the fixing nut and the supporting part are respectively located on the inner side and the outer side of the shell of the vehicle.
Preferably, two fixing nuts are provided.
Preferably, one end of the guide groove is communicated with the end part of the terminal post, after the guide groove spirally extends along the circumferential direction of the terminal post, the side wall of the other end is perpendicular to the axis of the terminal post.
The invention has the beneficial effects that:
public shell module supports the protection to public end inner core in it, female shell module supports the protection to the female end inner core in it, the condition of the unable reply complicated service environment of solitary rubber inner core has been avoided, female end subassembly detachably installs on the shell of vehicle, the dismantled and assembled setting of public end subassembly and female end subassembly, on the basis of the dismouting of being convenient for, both guaranteed that the cable need not break off and can pass vehicle housing, whole vehicle housing via hole device's stability and reliability have been guaranteed again.
Drawings
FIG. 1 is a schematic structural diagram of a vehicle housing via device according to an embodiment of the invention;
FIG. 2 is a schematic view of a male component according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a male terminal assembly according to another embodiment of the present invention;
FIG. 4 is an exploded view of a male end assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of a female end assembly according to an embodiment of the present invention;
FIG. 6 is a schematic view of another orientation of the female end assembly according to the embodiment of the present invention;
fig. 7 is an exploded view of a female end assembly according to an embodiment of the present invention.
In the figure:
1. a male end component;
10. a male end inner core; 101. positioning a groove; 11. a connecting nut; 12. a male end inner shell; 121. a receptacle portion; 122. a limiting part; 123. a screw connection part; 124. positioning the opening; 13. a switching nut; 14. sealing the wire body; 15. a sleeve; 16. a first gasket; 17. a wave spring; 18. a second gasket; 19. a third gasket;
100. clamping convex;
2. a female end assembly;
20. a female-end inner core; 21. a female end housing; 211. a terminating portion; 212. a support portion; 213. a penetration part; 214. a positioning bar; 22. fixing a nut; 23. a fourth gasket;
200. and a guide groove.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1-7, the present invention provides a vehicle housing via device comprising a male end assembly 1 and a female end assembly 2. Wherein, the male end component 1 comprises a male shell module and a male end inner core 10 made of rubber arranged in the male shell module, the male shell module is provided with an end connecting groove, a clamping bulge 100 is arranged in the end connecting groove, the male end inner core 10 is provided with a line passing hole, the female end component 2 is detachably arranged on the shell of a vehicle and comprises a female shell module and a female end inner core 20 made of rubber arranged in the female shell module, the female shell module is provided with an end connecting column, the outer wall of the end connecting column is provided with a guide groove 200, the female end inner core 20 is provided with a line passing hole, when the end connecting column extends into the end connecting groove, the locking protrusion 100 can slide along the guide groove 200, when the locking protrusion 100 slides to the bottom of the guide groove 200, the locking protrusion 100 locks the male end assembly 1 and the female end assembly 2 by abutting against the side wall of the guide groove 200, when the male end assembly 1 and the female end assembly 2 are locked and connected, the wire passing holes on the male end inner core 10 and the female end inner core 20 are in opposite communication so as to pass through the cable.
In the invention, the male shell module supports and protects the male end inner core 10 in the male shell module, the female shell module supports and protects the female end inner core 20 in the female shell module, the condition that an independent rubber inner core cannot deal with a complex use environment is avoided, the female end assembly 2 is detachably arranged on the shell of a vehicle, and the male end assembly 1 and the female end assembly 2 are detachably arranged, so that on the basis of convenient disassembly and assembly, a cable can penetrate through the shell of the vehicle without being disconnected, and the stability and reliability of the whole vehicle shell via hole device are ensured.
In the present embodiment, the outer shell of the vehicle refers to a shell at a position of a ceiling of the vehicle, and besides, it may be a shell at a trunk or other positions of the vehicle.
Optionally, the male housing module includes a coupling nut 11, a male end inner housing 12, and a transition nut 13. The end connection groove is arranged at one end of the connecting nut 11, the male end inner shell 12 is made of aluminum alloy, the female end inner shell comprises an accommodating portion 121, a limiting portion 122 and a screwing portion 123 which are sequentially connected in the axial direction, an accommodating groove is formed in the end portion of the accommodating portion 121, the outer diameter of the limiting portion 122 is larger than the accommodating portion 121 and the screwing portion 123, threads are arranged on the outer wall of the screwing portion 123, the male end inner core 10 is clamped in the accommodating groove, the limiting portion 122 is attached to the bottom of the end connection groove, the screwing portion 123 penetrates out of the bottom of the end connection groove, threads are arranged on the inner wall of the adapter nut 13 and are in screwed connection with the screwing portion 123, and the limiting portion 122 and the adapter nut 13 are respectively located on the inner side and the outer side of the bottom of the end connection groove.
Specifically, be provided with location mouth 124 on the lateral wall of public end inner shell 12, be provided with constant head tank 101 on the lateral wall of public end inner core 10, the tip of end post has seted up anti-slot, is provided with location strip 214 on the inner wall of anti-slot, when the end post stretches into the end and connects the inslot, public end inner shell 12 and public end inner core 10 stretch into anti-slot, location strip 214 passes location mouth 124 card and goes into in the constant head tank 101 to it is just right to make the line hole of crossing on public end inner core 10 and the female end inner core 20.
More specifically, the male housing module further includes a wire sealing body 14 and a sleeve 15. The wire sealing body 14 is provided with a wire passing hole, the wire sealing body 14 is arranged in the sleeve 15, the sleeve 15 is arranged in the adapting nut 13, the adapting nut 13 presses the wire sealing body 14 to the outer side of the bottom of the end connecting groove through the sleeve 15, the wire sealing body 14 is also made of rubber, and the wire passing hole on the wire sealing body is opposite to the wire passing hole on the male end inner core 10.
More specifically, a first gasket 16 is clamped between the adapter nut 13 and the connection nut 11 to seal and protect the wire sealing body 14 in the adapter nut 13.
In this embodiment, the male housing module further includes a corrugated spring 17, and the corrugated spring 17 is clamped between the limiting portion 122 and the bottom of the terminal groove, so that a certain axial abutting force is provided between the adapting nut 13 and the connecting nut 11 which are screwed together, and the two are prevented from being loosened due to vibration and other external forces.
Specifically, a second gasket 18 is clamped between the limiting portion 122 and the corrugated spring 17, and seals and protects the male end inner shell 12 and the male end inner core 10 in the coupling nut 11.
In this embodiment, the outer periphery of the male end inner core 10 is sleeved with a third gasket 19, and the male end inner core 10 is clamped in the accommodating groove through the third gasket 19.
Alternatively, the female housing module includes a female end housing 21 and a fixing nut 22. The female end shell 21 is made of aluminum alloy, the female end inner core 20 is installed in the female end shell 21, the female end shell 21 comprises a terminating portion 211, a supporting portion 212 and a penetrating portion 213 which are sequentially connected in the axial direction, the terminating portion 211 serves as a terminating column, the outer diameter of the supporting portion 212 is larger than that of the terminating portion 211 and that of the penetrating portion 213, threads are arranged on the outer wall of the penetrating portion 213, the penetrating portion 213 penetrates through the outer shell of a vehicle and then is in threaded connection with the fixing nut 22, and the fixing nut 22 and the supporting portion 212 are located on the inner side and the outer side of the outer shell of the vehicle respectively.
Specifically, the two fixing nuts 22 are arranged, so that the anti-loosening effect is achieved, and the fixing nuts 22 and the supporting parts 212 are more stable and reliable in clamping the vehicle shell.
More specifically, a fourth gasket 23 is disposed between the support portion 212 and the fixing nut 22, and when the vehicle is specifically installed, the penetrating portion 213 is screwed with the fixing nut 22 after the fourth gasket 23 penetrates through the outer shell of the vehicle, wherein the fourth gasket 23 plays a role of sealing at the opening of the outer shell of the vehicle.
Alternatively, one end of the guide groove 200 is connected to the end of the terminal post, and after the guide groove 200 spirally extends along the circumference of the terminal post, the side wall of the other end is perpendicular to the axis of the terminal post. Above-mentioned setting for protruding 100 of card can be through the tank bottom of rotational sliding to guide slot 200 to at the tank bottom position department of guide slot 200, under the effect of the axial force of separation, protruding 100 of card supports the lateral wall of tight guide slot 200, and then realizes the locking to public end subassembly 1 and female end subassembly 2. Besides extending along the above-mentioned track, the guide groove 200 may also have one end connected to the end of the terminal post, and then extending along the axial direction of the terminal post, and then extending along the circumferential direction of the terminal post, at this time, when locking, the terminal post extends into the terminal groove along the axial direction, and then rotates along the circumferential direction to realize locking.
Alternatively, the snap protrusions 100 and the guide grooves 200 are respectively provided in three, so that the locking between the male end assembly 1 and the female end assembly 2 is more stable and reliable.
When threading the dress cable, on the shell of the vehicle was installed to female end subassembly 2 earlier, again with public end subassembly 1 locking in female end subassembly 2, the cable passed from the wire sealing body 14, public end inner shell 12, public end inner core 10 and female end inner core 20 and gets into inside the vehicle, was interference fit respectively when wearing to establish the assembly, played sealed effect.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. A vehicle housing via apparatus, comprising:
the male end assembly (1) comprises a male shell module and a rubber male end inner core (10) arranged in the male shell module, wherein an end connection groove is formed in the male shell module, a clamping protrusion (100) is arranged in the end connection groove, and a wire passing hole is formed in the male end inner core (10);
a female end assembly (2), the female end assembly (2) is detachably mounted on the outer shell of the vehicle and comprises a female shell module and a female end inner core (20) made of rubber and arranged in the female shell module, the female shell module is provided with an end connecting column, the outer wall of the end connecting column is provided with a guide groove (200), the female end inner core (20) is provided with a wire passing hole, when the end connection post extends into the end connection groove, the clamping protrusion (100) can slide along the guide groove (200), when the clamping protrusion (100) slides to the groove bottom of the guide groove (200), the clamping protrusion (100) tightly presses the side wall of the guide groove (200) to lock the male end component (1) and the female end component (2), when the male end component (1) is connected with the female end component (2) in a locking way, the wire passing holes in the male end inner core (10) and the female end inner core (20) are in opposite communication so that a cable can pass through the wire passing holes;
the public shell module includes:
the end connecting groove is formed in one end of the connecting nut (11);
the male end inner shell (12) is prepared from aluminum alloy and comprises an accommodating part (121), a limiting part (122) and a threaded part (123) which are sequentially connected in the axial direction, an accommodating groove is formed in the end part of the accommodating part (121), the outer diameter of the limiting part (122) is larger than that of the accommodating part (121) and the threaded part (123), threads are arranged on the outer wall of the threaded part (123), the male end inner core (10) is clamped in the accommodating groove, the limiting part (122) abuts against the bottom of the end groove, and the threaded part (123) penetrates out of the bottom of the end groove;
the inner wall of the adapter nut (13) is provided with threads, the inner wall of the adapter nut is in threaded connection with the threaded connection part (123), and the limiting part (122) and the adapter nut (13) are respectively located on the inner side and the outer side of the bottom of the end connection groove.
2. The vehicle outer shell via device according to claim 1, wherein a positioning hole (124) is formed in a side wall of the male end inner shell (12), a positioning groove (101) is formed in a side wall of the male end inner core (10), an anti-slot is formed in an end portion of the terminal post, a positioning strip (214) is arranged on an inner wall of the anti-slot, the terminal post extends into the terminal slot, the male end inner shell (12) and the male end inner core (10) extend into the anti-slot, and the positioning strip (214) penetrates through the positioning hole (124) and is clamped into the positioning groove (101), so that the line passing holes in the male end inner core (10) and the female end inner core (20) are aligned.
3. The vehicle housing via apparatus of claim 1, wherein the male housing module further comprises:
the wire sealing body (14), wherein a wire passing hole is formed in the wire sealing body (14);
the wire sealing body (14) is arranged in the sleeve (15), the sleeve (15) is arranged in the adapter nut (13), and the adapter nut (13) presses the wire sealing body (14) to the outer side of the bottom of the end connecting groove through the sleeve (15).
4. The vehicle housing via device according to claim 3, characterized in that a first washer (16) is clamped between the adapting nut (13) and the connecting nut (11).
5. The vehicle housing via arrangement according to claim 1, wherein the male housing module further comprises a wave spring (17), the wave spring (17) being sandwiched between the limiting portion (122) and a groove bottom of the termination groove.
6. The vehicle housing via device according to claim 5, characterized in that a second washer (18) is sandwiched between the stopper portion (122) and the wave spring (17).
7. The vehicle housing via apparatus of claim 1, wherein the female housing module comprises:
the female end shell (21) is prepared from aluminum alloy, the female end inner core (20) is installed in the female end shell (21), the female end shell (21) comprises an end connection part (211), a support part (212) and a penetration part (213) which are sequentially connected in the axial direction, the end connection part (211) serves as the end connection column, the outer diameter of the support part (212) is larger than the end connection part (211) and the penetration part (213), and threads are arranged on the outer wall of the penetration part (213);
the penetrating part (213) penetrates through the shell of the vehicle and then is in threaded connection with the fixing nut (22), and the fixing nut (22) and the supporting part (212) are respectively located on the inner side and the outer side of the shell of the vehicle.
8. Vehicle housing via arrangement according to claim 7, characterised in that the fixing nut (22) is provided in two.
9. The vehicle housing via device according to any one of claims 1 to 8, wherein one end of the guide groove (200) is communicated with the end of the terminal post, and after the guide groove (200) spirally extends along the circumference of the terminal post, the side wall of the other end is perpendicular to the axis of the terminal post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010812711.4A CN111987684B (en) | 2020-08-13 | 2020-08-13 | Vehicle shell via hole device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010812711.4A CN111987684B (en) | 2020-08-13 | 2020-08-13 | Vehicle shell via hole device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111987684A CN111987684A (en) | 2020-11-24 |
| CN111987684B true CN111987684B (en) | 2022-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010812711.4A Active CN111987684B (en) | 2020-08-13 | 2020-08-13 | Vehicle shell via hole device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111987684B (en) |
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| CN109716595A (en) * | 2016-09-16 | 2019-05-03 | Itt制造企业有限责任公司 | Electric connector |
| CN110492308A (en) * | 2019-08-01 | 2019-11-22 | 中航光电科技股份有限公司 | A kind of bayonet connector of band bullet pin locking mechanism |
| CN110504560A (en) * | 2019-08-26 | 2019-11-26 | 中国商用飞机有限责任公司 | Sealed wall penetrating device and method of using same |
| CN210490438U (en) * | 2019-08-02 | 2020-05-08 | 广西金步电力科技有限公司 | Waterproof fixed head of cable threading |
| CN210517175U (en) * | 2019-11-12 | 2020-05-12 | 郑州赛川电子科技有限公司 | High-voltage connector with secondary locking structure |
| JP2020120568A (en) * | 2019-01-21 | 2020-08-06 | 星和電機株式会社 | Cable ground |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9601914B2 (en) * | 2014-01-13 | 2017-03-21 | Avc Industrial Corp. | Cable and flexible conduit gland assembly |
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2020
- 2020-08-13 CN CN202010812711.4A patent/CN111987684B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202004414U (en) * | 2011-03-03 | 2011-10-05 | 唐健峰 | Porous waterproof cable joint |
| CN109716595A (en) * | 2016-09-16 | 2019-05-03 | Itt制造企业有限责任公司 | Electric connector |
| JP2020120568A (en) * | 2019-01-21 | 2020-08-06 | 星和電機株式会社 | Cable ground |
| CN110492308A (en) * | 2019-08-01 | 2019-11-22 | 中航光电科技股份有限公司 | A kind of bayonet connector of band bullet pin locking mechanism |
| CN210490438U (en) * | 2019-08-02 | 2020-05-08 | 广西金步电力科技有限公司 | Waterproof fixed head of cable threading |
| CN110504560A (en) * | 2019-08-26 | 2019-11-26 | 中国商用飞机有限责任公司 | Sealed wall penetrating device and method of using same |
| CN210517175U (en) * | 2019-11-12 | 2020-05-12 | 郑州赛川电子科技有限公司 | High-voltage connector with secondary locking structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111987684A (en) | 2020-11-24 |
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