CN104348127B - The cable flame proof joint design of light fixture - Google Patents
The cable flame proof joint design of light fixture Download PDFInfo
- Publication number
- CN104348127B CN104348127B CN201310334788.5A CN201310334788A CN104348127B CN 104348127 B CN104348127 B CN 104348127B CN 201310334788 A CN201310334788 A CN 201310334788A CN 104348127 B CN104348127 B CN 104348127B
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- China
- Prior art keywords
- clamp nut
- fluting
- cam
- flame proof
- spring cylinder
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Classifications
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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
- H02G15/02—Cable terminations
- H02G15/06—Cable terminating boxes, frames or other structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Clamps And Clips (AREA)
- Cable Accessories (AREA)
Abstract
A kind of cable flame proof joint design of light fixture, it includes：For the clamp nut of tube structure, one end of clamp nut is provided with the first fluting, and the other end is provided with flame proof thread, and the first fluting extends to the middle part of clamp nut from the openend of clamp nut, and along the axially extending of clamp nut, the opposite sides of the first fluting each extends over out a lug；Offer in the spring cylinder of the second fluting, one end where the first fluting of spring cylinder installation clamp nut；Through the threaded connector of two lugs, one end of threaded connector is provided with stop part, and the other end is provided with threaded portion；One end is provided with the cam spanner of cam, and cam is abutted with one of lug, and the middle part of cam is provided with mounting groove；Middle part is provided with the bearing pin of axis hole, and bearing pin passes through the eccentric position of cam, and cam is rotatable around bearing pin, and the mounting groove of axis hole correspondence cam spanner is set, and threaded connector is fixedly connected through axis hole with bearing pin.It is more convenient quick that above-mentioned cable flame proof joint design installs cable.
Description
【Technical field】
The present invention relates to a kind of cable connector structure, the cable flame proof joint design of more particularly to a kind of light fixture.
【Background technology】
Required according to national standard, explosion-proof class light fixture lead-in cable will not only have explosive-proof sealed requirement, also prevent cable
Pull-off.Many explosion-proof lamps, are all to use a tabletting at present, with two screws, then with the urgent structure of Phillips screwdriver,
The light fixture of this structure, if assembling wiring in batch, can bring larger workload to in-site installation personnel, time-consuming, laborious.
【The content of the invention】
In view of above-mentioned condition, it is necessary to provide a kind of cable flame proof joint knot for installing the more convenient efficiently light fixture of cable
Structure.
A kind of cable flame proof joint design of light fixture, it includes：
For the clamp nut of tube structure, one end of the clamp nut is provided with the first fluting, and the other end is provided with flame proof spiral shell
Line, first fluting extends to the middle part of the clamp nut from the openend of the clamp nut, and is compressed along described
Nut it is axially extending, it is described first fluting opposite sides each extend over out a lug, when compress two lugs when,
Elastic deformation occurs for one end where can making first fluting of the clamp nut；
The spring cylinder of the second fluting is offered, the spring cylinder is installed where first fluting of the clamp nut
In one end, second fluting extends to the other end from one end of the spring cylinder；
Through the threaded connector of two lugs, one end of the threaded connector is provided with stop part, and the other end is set
There is threaded portion；
One end is provided with the cam spanner of cam, and the cam is abutted with lug one of them described, the middle part of the cam
Provided with mounting groove；And
Middle part is provided with the bearing pin of axis hole, and the bearing pin passes through the eccentric position of the cam, and the cam is around described
Bearing pin is rotatable, and the mounting groove of the axis hole correspondence cam spanner is set, and the threaded connector passes through the axis hole, and
It is fixedly connected with the bearing pin；
Wherein, when rotating the cam spanner, the cam abuts the lug and pulls the threaded connector, institute
State threaded connector and clamp two lugs, so that the clamp nut compresses the cable through the spring cylinder.
Compared to traditional cable flame proof joint design, above-mentioned cable flame proof joint design at least has advantages below：
（1）The spring cylinder for being used for coating cable, clamp nut are provided with the clamp nut of above-mentioned cable flame proof joint design
One end away from flame proof thread, to form elastic construction, can make the elastic construction provided with the first fluting by rotation cam spanner
Shrink, make clamp nut and spring cylinder tightly clamping cables, so that fixed cable, only need to be by cable when needing lead-in cable
Through spring cylinder, cam spanner is pressed, so that it may compress cable, it is convenient and swift without threading without instrument.
（2）The spring cylinder of above-mentioned cable flame proof joint design is arranged on clamp nut, cam spanner, bearing pin, threaded connection
Part links together with clamp nut, with being integrally formed joint design, is installed during installation with integral form, without unnecessary accessory,
Process during wiring is reduced, installation effectiveness is improved.
In one of the embodiments, the middle part of the clamp nut is provided with the groove of arc, and the groove is along the pressure
The circumferentially extending of tight nut, and the middle part of the groove slots with described first and connects.
In one of the embodiments, the middle part of the clamp nut is provided with the instrument boss of regular hexagon, the instrument
Boss surrounds the clamp nut one week, and the instrument boss is located at the flame proof thread of the groove and the clamp nut
Between, by instrument boss described in spanner clamping, to rotate the clamp nut.
In one of the embodiments, the axis hole of the bearing pin is screw, and the threaded connector is soket head cap screw, institute
The end face for stating the cap head of soket head cap screw is provided with the well of regular hexagon, and the soket head cap screw passes through described two institutes
State after lug, be screwed with the axis hole of the bearing pin.
In one of the embodiments, the threaded connector is bolt, and the end of thread of the threaded connector sets
There is pin-and-hole, the threaded connector is passed through after the axis hole of described two lugs and the bearing pin, is equipped with the pin-and-hole
One latch.
In one of the embodiments, the spring cylinder is rubber tube, and the spring cylinder inwall provided with keeping away position
Groove, the bit-avoiding slot is axially extending along the spring cylinder, and is oppositely arranged with the described second fluting.
In one of the embodiments, second fluting is along the axially arranged of the spring cylinder, and described second opens
Groove is be arranged in parallel with the bit-avoiding slot, and the first fluting of the bit-avoiding slot and the clamp nut is correspondingly arranged.
In one of the embodiments, annular slot, the annular slot edge are provided with the middle part of the inwall of the clamp nut
The circumferentially extending of the clamp nut, one end of the spring cylinder is provided with retaining flange, and the retaining flange surrounds the elasticity
The openend of cylinder is set, and the retaining flange can be fastened in the annular slot, to position the spring cylinder.
In one of the embodiments, the brace arm of the cam spanner is arc, and the interior concave curved of the brace arm
Face can be abutted with the outer wall of the clamp nut.
In one of the embodiments, the button number of the flame proof thread is more than 5.
【Brief description of the drawings】
Fig. 1 is the stereogram of the cable flame proof joint design of embodiment of the present invention；
Fig. 2 is the exploded view of the cable flame proof joint design shown in Fig. 1；
Fig. 3 is the stereogram at another visual angle of the cable flame proof joint design shown in Fig. 1；
Fig. 4 is the axial sectional view of the cable flame proof joint design shown in Fig. 1.
【Embodiment】
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the preferred embodiment of the present invention.But, the present invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more saturating
It is thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or can also have element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases
The arbitrary and all combination of the Listed Items of pass.
Referring to Fig. 1, the cable flame proof joint design 100 of the light fixture of embodiment of the present invention, including clamp nut 110,
Spring cylinder 120, threaded connector 130, cam spanner 140 and bearing pin 150.
Also referring to Fig. 2, clamp nut 110 is tube structure.One end of clamp nut 110 is provided with the first fluting 111,
The other end is provided with flame proof thread 112.First fluting 111 is extended in clamp nut 110 from the openend of clamp nut 110
Portion, and along the axially extending of clamp nut 110.The opposite sides of first fluting 111 each extends over out a lug 113, when
When compressing two lugs 113, the first of clamp nut 110 one end for slotting 111 places can be made to occur elastic deformation.
Specifically in the illustrated embodiment, clamp nut 110 is columnar structured, and lug 113 is from first fluting 111
The rectangular cam that extends of two opposite sides side, and two lugs 113 are oppositely arranged in parallel.
Further, the middle part of clamp nut 110 is provided with the groove 115 of arc, week of the groove 115 along clamp nut 110
To extension, and the middle part of groove 115 is connected with the first fluting 111.Because groove 115 is set against the first fluting 111, make pressure
Elastic deformation easily occurs for one end that tight nut 110 is separated by first fluting 111, is easy to clamp by two lugs 113
Through the cable of clamp nut 110.
Further, the middle part of clamp nut 110 is provided with the instrument boss 116 of regular hexagon, and instrument boss 116 is around pressure
Tight nut 110 1 weeks, and instrument boss 116 is positioned between groove 115 and the flame proof thread 112 of clamp nut 110, by pulling
Hand clamping tool boss 116, to rotatably compress nut 110.When the screw for the lamp housing for needing clamp nut 110 being arranged on light fixture
When interior, using spanner clamping instrument boss 116, clamp nut 110 can be screwed into the screw of lamp housing more conveniently.
Further, the number of buckleing of the flame proof thread 112 of clamp nut 110 is more than 5, is acted on playing preferable flame proof.
Spring cylinder 120 offers the second fluting 121.Spring cylinder 120 is installed where the first fluting 111 of clamp nut 110
One end in, the second fluting 121 extends to the other end from one end of spring cylinder 120.Specifically in the illustrated embodiment, spring cylinder
120 be rubber tube, and the inwall of spring cylinder 120 is provided with bit-avoiding slot 123, and axial direction of the bit-avoiding slot 123 along spring cylinder 120 is prolonged
Stretch, and be oppositely arranged with the second fluting 121.Because the inwall of spring cylinder 120 is provided with bit-avoiding slot 123, it is easy to spring cylinder 120 to send out
Raw deformation, i.e. the second fluting 121 of spring cylinder 120 is more prone to closure.
Further, the second fluting 121 is along the axially arranged of spring cylinder 120, and the second fluting 121 and bit-avoiding slot 123
It is arranged in parallel, the first fluting 111 of bit-avoiding slot 123 and clamp nut 110 is correspondingly arranged.Due to the second fluting of spring cylinder 120
121 are be arranged in parallel with bit-avoiding slot 123, and the first fluting 111 of bit-avoiding slot 123 and clamp nut 110 is correspondingly arranged so that compress spiral shell
Mother 110 is easier to clamp spring cylinder 120, and cable is located at the portion of the first fluting 111 of clamp nut 110 by spring cylinder 120
Position is wrapped, to be protected to cable.
Further, it is provided with annular slot 117 in the middle part of the inwall of clamp nut 110（As shown in Figure 4）, annular slot 117
Along the circumferentially extending of clamp nut 110, one end of spring cylinder 120 is provided with retaining flange 125, and retaining flange 125 surrounds spring cylinder
120 openend is set, and retaining flange 125 can be fastened in annular slot 117, with positioning elastic cylinder 120.
Threaded connector 130 passes through two lugs 113 of clamp nut 110.One end of threaded connector 130 is provided with stop
Portion（Figure is not marked）, the other end is provided with threaded portion（Figure is not marked）.One end of cam spanner 140 be provided with cam 141, cam 141 and its
In a lug 113 abut, the middle part of cam 141 is provided with mounting groove 142.The middle part of bearing pin 150 is provided with axis hole 151, bearing pin 150
Through the eccentric position of cam 141, and cam 141 is rotatable around bearing pin 150, the correspondence of axis hole 151 cam spanner 140
Mounting groove 142 is set.Threaded connector 130 passes through axis hole 151, and is fixedly connected with bearing pin 150.
Wherein, when rotation cam spanner 140, cam 141 abuts lug 113 and pulls threaded connector 130, and screw thread connects
Fitting 130 clamps two lugs 113, so that clamp nut 110 compresses the cable through spring cylinder 120.
Specifically in the illustrated embodiment, the axis hole 151 of bearing pin 150 is screw, and threaded connector 130 is interior hexagonal spiral shell
Nail, the end face of the cap head of soket head cap screw is provided with the well of regular hexagon, and soket head cap screw passes through two lugs 113
Afterwards, the axis hole 151 with bearing pin 150 is screwed.
In other embodiments, threaded connector 130 is bolt, and the end of thread of threaded connector 130 is provided with pin-and-hole,
Threaded connector 130 is passed through after the axis hole 151 of two lugs 113 and bearing pin 150, a latch is equipped with pin-and-hole, to stop spiral shell
Line connector 130 comes off.
Further, the brace arm 143 of cam spanner 140 is arc, and the inner sunken face of brace arm 143 is with compressing spiral shell
The outer wall of mother 110 can be abutted.
Further, the mounting groove 142 of cam spanner 140 is the platform extended from the middle part of cam 141 towards brace arm 143
Stepped groove, bearing pin 150 is located on the step surface of mounting groove 142.
Illustrate above-mentioned cable flame proof joint design 100 below in conjunction with specific embodiment：
Also referring to Fig. 3 and Fig. 4, clamp nut 110 is cylindrical structure, facilitates cable to pass through, the outside of one end be every
Quick-fried screw thread 112, screw thread meets the requirement of GB3836.2-2010 flame proofs standard, and button number is more than 5 buttons.In the middle of the outside of clamp nut 110
For the instrument boss 116 of regular hexagon, convenient wrench is stuck in tightens clamp nut 110 herein.The other end of clamp nut 110 is bullet
Property structure（Part where i.e. first fluting 111）, have a semicircular groove 115 between elastic construction and hexahedron, make bullet
Property structure is more flexible shrinks, be provided with an annular slot 117 close to the inwall of this groove 115, in order to assemble spring cylinder 120,
Prevent spring cylinder 120 from releasing.Elastic structure is an open loop structure, and the opposite sides of the first fluting 111 is with holes provided with two
Lug 113, two lugs 113 of compression can shrink the elastic construction of clamp nut 110.An axis hole 151 is provided with the middle of bearing pin 150
（Screwed hole）.The one end of cam spanner 140 is to have a through hole on cam 141, eccentric position, and assembling bearing pin 150 is used, in cam 141
Between slot, facilitate threaded connector 130 to pass through, the other end of cam 141 be brace arm 143.Spring cylinder 120 is that one end band clamping is convex
The circular ring structure of edge 125, the second fluting 121 is provided with anchor ring, annulus is not closed, and is more convenient compression.
During assembling, in the eccentric through-hole that bearing pin 150 is assembled to cam 141, clamp nut is passed through with threaded connector 130
In two lugs 113 of 110 elastic construction, the screwed hole for being screwed to bearing pin 150, spring cylinder 120 is attached to clamp nut 110
In annular slot 117 on inwall, so as to form the flame proof adapter assembly with pressure texture.
When light fixture wants lead-in cable, cable is passed through to the spring cylinder 120 of cable flame proof joint design 100, lamp body is accessed
It is interior, the clamp nut 110 of flame proof joint design is linked on the screw interface of lamp body, after connecting, cam spanner is firmly depressed
140, so that it may realize and compress cable, prevent cable from releasing, it is convenient and swift.
Compared to traditional cable flame proof joint design, above-mentioned cable flame proof joint design 100 at least has advantages below：
（1）The spring cylinder 120 for being used for coating cable is provided with the clamp nut 110 of above-mentioned cable flame proof joint design 100,
, to form elastic construction, pulled provided with the first fluting 111 by rotation cam the one end of clamp nut 110 away from flame proof thread 112
Hand 140 can shrink the elastic construction, make clamp nut 110 and the tightly clamping cables of spring cylinder 120, so that fixed cable, when
When needing lead-in cable, only cable need to be passed through spring cylinder 120, cam spanner 140 be pressed, so that it may compress cable, without it
Its instrument, it is convenient and swift without threading.
（2）The spring cylinder 120 of above-mentioned cable flame proof joint design 100 is arranged on clamp nut 110, cam spanner 140, pin
Axle 150, threaded connector 130 link together with clamp nut 110, with being integrally formed joint design, with entirety during installation
Form is installed, and without unnecessary accessory, is reduced process during wiring, is improved installation effectiveness.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of cable flame proof joint design of light fixture, it is characterised in that including：
For the clamp nut of tube structure, one end of the clamp nut is provided with the first fluting, and the other end is provided with flame proof thread, institute
Stating flame proof thread is used to be connected with the screw interface of the light fixture, and the button number of the flame proof thread is more than 5；It is described first fluting from
The openend of the clamp nut extends to the middle part of the clamp nut, and along the axially extending of the clamp nut, institute
The opposite sides for stating the first fluting each extends over out a lug, when compressing two lugs, can make the clamp nut
It is described first fluting where one end occur elastic deformation；
The spring cylinder of the second fluting is offered, the spring cylinder installs one end where first fluting of the clamp nut
Interior, second fluting extends to the other end from one end of the spring cylinder；
Through the threaded connector of two lugs, one end of the threaded connector is provided with stop part, and the other end is provided with spiral shell
Line portion；
One end is provided with the cam spanner of cam, and the cam is abutted with lug one of them described, and the middle part of the cam is provided with
Mounting groove；And
Middle part is provided with the bearing pin of axis hole, and the bearing pin passes through the eccentric position of the cam, and the cam is around the bearing pin
Rotatably, the mounting groove of the axis hole correspondence cam spanner is set, and the threaded connector passes through the axis hole, and with institute
Bearing pin is stated to be fixedly connected；
Wherein, when rotating the cam spanner, the cam abuts the lug and pulls the threaded connector, the spiral shell
Line connector clamps two lugs, so that the clamp nut compresses the cable through the spring cylinder.
2. the cable flame proof joint design of light fixture as claimed in claim 1, it is characterised in that set in the middle part of the clamp nut
There are the groove of arc, circumferentially extending of the groove along the clamp nut, and the middle part of the groove to be opened with described first
Groove is connected.
3. the cable flame proof joint design of light fixture as claimed in claim 2, it is characterised in that set in the middle part of the clamp nut
There is the instrument boss of regular hexagon, the instrument boss surrounds the clamp nut one week, and the instrument boss is located at institute
Between the flame proof thread for stating groove and the clamp nut, by instrument boss described in spanner clamping, to rotate the compression spiral shell
It is female.
4. the cable flame proof joint design of light fixture as claimed in claim 1, it is characterised in that the axis hole of the bearing pin is spiral shell
Hole, the threaded connector is soket head cap screw, and the end face of the cap head of the soket head cap screw is provided with the well of regular hexagon,
And the soket head cap screw is passed through after described two lugs, is screwed with the axis hole of the bearing pin.
5. the cable flame proof joint design of light fixture as claimed in claim 1, it is characterised in that the threaded connector is spiral shell
Bolt, and the end of thread of the threaded connector is provided with pin-and-hole, and the threaded connector passes through described two lugs and institute
After the axis hole for stating bearing pin, a latch is equipped with the pin-and-hole.
6. the cable flame proof joint design of light fixture as claimed in claim 1, it is characterised in that the spring cylinder is rubber tube,
And the inwall of the spring cylinder is provided with bit-avoiding slot, and the bit-avoiding slot is axially extending along the spring cylinder, and with it is described
Second fluting is oppositely arranged.
7. the cable flame proof joint design of light fixture as claimed in claim 6, it is characterised in that described second slots along the bullet
Property cylinder it is axially arranged, and second fluting be arranged in parallel with the bit-avoiding slot, the bit-avoiding slot and the clamp nut
First fluting be correspondingly arranged.
8. the cable flame proof joint design of light fixture as claimed in claim 1, it is characterised in that in the inwall of the clamp nut
Portion is provided with annular slot, and circumferentially extending of the annular slot along the clamp nut, one end of the spring cylinder is provided with clamping
Flange, the retaining flange is set around the openend of the spring cylinder, and the retaining flange can be fastened on the annular
In neck, to position the spring cylinder.
9. the cable flame proof joint design of light fixture as claimed in claim 1, it is characterised in that the brace arm of the cam spanner
For arc, and the inner sunken face of the brace arm can be abutted with the outer wall of the clamp nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310334788.5A CN104348127B (en) | 2013-08-02 | 2013-08-02 | The cable flame proof joint design of light fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310334788.5A CN104348127B (en) | 2013-08-02 | 2013-08-02 | The cable flame proof joint design of light fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104348127A CN104348127A (en) | 2015-02-11 |
| CN104348127B true CN104348127B (en) | 2017-10-24 |
Family
ID=52503187
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310334788.5A Active CN104348127B (en) | 2013-08-02 | 2013-08-02 | The cable flame proof joint design of light fixture |
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| CN (1) | CN104348127B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104929031A (en) * | 2015-05-20 | 2015-09-23 | 浙江兄弟路标涂料有限公司 | Sealing structure of discharging opening of microsphere distributor |
| CN104929030A (en) * | 2015-05-20 | 2015-09-23 | 浙江兄弟路标涂料有限公司 | Pavement strip microsphere distribution vehicle |
| CN104929032A (en) * | 2015-05-20 | 2015-09-23 | 浙江兄弟路标涂料有限公司 | Regulating device of discharge opening of microsphere dispenser |
| CN104929028A (en) * | 2015-05-20 | 2015-09-23 | 浙江兄弟路标涂料有限公司 | Discharge structure of micro bead spreader |
| CN105571735B (en) * | 2016-01-21 | 2018-05-29 | 中广核研究院有限公司 | Couple sealing |
| CN107658822A (en) * | 2017-11-02 | 2018-02-02 | 国网湖北省电力公司宜昌供电公司 | A kind of light-duty suspension clamp for electric line |
| CN109994981B (en) * | 2019-04-24 | 2024-02-02 | 广东电网有限责任公司广州供电局 | Anti-slip device |
| CN113937663A (en) * | 2021-11-29 | 2022-01-14 | 广东电网有限责任公司 | Universal clamp for replacing insulator |
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| CN202444106U (en) * | 2011-12-22 | 2012-09-19 | 哈尔滨东方安科技有限公司 | Explosion-proof connector |
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| US7115822B1 (en) * | 2006-02-21 | 2006-10-03 | Joy Mm Delaware, Inc. | Indirect entry cable gland assembly |
| CN202810315U (en) * | 2009-06-03 | 2013-03-20 | 格拉茨股份公司 | Device for connecting base pipe to pole |
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| CN202444106U (en) * | 2011-12-22 | 2012-09-19 | 哈尔滨东方安科技有限公司 | Explosion-proof connector |
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| Publication number | Publication date |
|---|---|
| CN104348127A (en) | 2015-02-11 |
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