CN104347968A - Cable flame-proof joint structure of light fixture - Google Patents
Cable flame-proof joint structure of light fixture Download PDFInfo
- Publication number
- CN104347968A CN104347968A CN201310334871.2A CN201310334871A CN104347968A CN 104347968 A CN104347968 A CN 104347968A CN 201310334871 A CN201310334871 A CN 201310334871A CN 104347968 A CN104347968 A CN 104347968A
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- Prior art keywords
- moulding
- nest
- gathering sill
- light fixture
- movable holddown
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
Abstract
Disclosed is a cable flame-proof joint structure of a light fixture. The structure includes a nesting part with a cylindrical structure, a conductive column installed in the nesting part, an injection molding part which is formed through injection molding in a gap between the periphery of the conductive column and the inner wall of the nesting part, and two wiring assemblies which are installed respectively at the two ends of the injection molding part and are in breakover with the two ends of the conductive column. Each wiring assembly includes a guide column fixed in an end part of the injection molding part, wherein the guide column is provided with a guide groove which extends in the axial direction of the guide column, a wiring hole which passes through the side wall of the guide column and is in communication with the guide groove and a slide groove which is arranged at a closed end of the guide column; a movable pressure block which is arranged in the guide groove in a slide manner, wherein the movable pressure block can abut against the bottom of the guide groove; an insulating button which is arranged at the opening of the end part of the injection molding part in a slide manner and provided with a push column which is capable of sliding along the slide groove and abuts against the movable pressure block; and a resetting elastic part which is installed in the guide groove and abuts against the mobile pressure block. The cable flame-proof joint structure is comparatively rapid and convenient in connection of a wire.
Description
[technical field]
The present invention relates to a kind of cable flame proof joint design, particularly relate to a kind of cable flame proof joint design of light fixture.
[background technology]
Current a lot of explosion-proof compound light fixture, flame proof is had to add INCREASEDSAFETY or flame proof adds the light fixtures such as intrinsic safety type when its explosion-proof chamber outwards draws cable, all compress cable by clamp nut and filler to draw wire mostly, wire after extraction also will be connected with other wire by junction block, not only volume is large, and complex structure, light fixture cost can increase, and causes the wasting of resources.
[summary of the invention]
In view of above-mentioned condition, be necessary to provide a kind of cable flame proof joint design connecting the comparatively quick and easy light fixture of wire.
A cable flame proof joint design for light fixture, it comprises:
For the nest of tube structure, the outer wall of described nest is provided with flame proof thread;
Be arranged on the conductive pole in described nest, there is gap between the periphery of described conductive pole and the inwall of described nest, described gap is around the periphery one week of described conductive pole;
Be injected and molded in the moulding in described gap, described moulding is long tubular construction, described nest is set in the middle part of described moulding, the two ends of described nest are made all to expose to outside described nest, described conductive pole is contained in described nest, the two ends outer wall of described moulding is provided with cable-through hole, the inner space of described cable-through hole and described moulding;
To be arranged on respectively in described moulding two ends and two connector assemblies conducted with the two ends of described conductive pole, each described connector assembly comprises:
Be fixed on the lead in described moulding end, described lead is provided with gathering sill, wiring hole and chute, described gathering sill extends along the axis of described lead, and runs through the end face of wherein one end of described lead, and the other end of described lead is blind end; Described wiring hole runs through the sidewall of described lead, and is connected with described gathering sill; Described chute is located on the outer wall of the blind end of described lead, and is connected with described gathering sill;
Be located at the movable holddown in described gathering sill slidably, described movable holddown can abut with the bottom of described gathering sill, to clamp the end of the wire through the cable-through hole of described moulding and the cable-through hole of described conductive pole;
Be located at the open-ended insulation button of described moulding slidably, described insulation button is provided with and slidably promotes post along described chute, and described promotion post abuts with described movable holddown, slides in described gathering sill to promote described movable holddown;
To be arranged in described gathering sill and the return springs abutted with described movable holddown, described movable holddown under the elastic force effect of described return springs towards the basal sliding of described gathering sill;
Wherein, when pressing described insulation button, described insulation button compresses described movable holddown by described promotion post, make the bottom part of described movable holddown and described gathering sill from; When unclamping described insulation button, described movable holddown automatically resets under the elastic force effect of described return springs.
The outer wall of the nest of the cable flame proof joint design of above-mentioned light fixture is provided with flame proof thread, directly can realize explosion-proof chamber and be connected with the flame proof in other chamber, meet GB3836.2-2010 flame proof standard-required.The two ends of moulding are provided with the connector assembly that elasticity holds wire, during wiring, only insulation button need be pressed, wire is filled in the wiring hole of moulding, just can realize wiring, convenient, fast, without the need to being transferred by junction block again, therefore, the cable flame proof joint design wiring of above-mentioned light fixture is comparatively quick and easy.
In addition, moulding and the connector assembly being positioned at its two ends, two ends wire is not only made reliably to insulate connection, and the electric clearance of joint and creepage distance meet the requirement of GB3836.3-2010 INCREASEDSAFETY explosion-proof criteria and GB3836.4-2010 intrinsic safety type explosion-proof criteria, therefore above-mentioned cable flame proof joint design can be used for explosion-proof chamber and increases the switching pacified between chamber, also can be used for the switching between explosion-proof chamber and intrinsic safety chamber, apply comparatively extensive.
Wherein in an embodiment, one end of described movable holddown is provided with guide ledges, the end face of the other end is provided with the first dentalation, the bottom of described gathering sill is provided with the second dentalation be meshed with described first dentalation, and one end of described return springs is set in described guide ledges.
Wherein in an embodiment, each described connector assembly also comprises cap fall prevention, described insulation button comprises the button cap of one end open and is located at the stop flange of opening periphery of described button cap, described cap fall prevention is connected with the end winding support of described moulding, and be set on described button cap, described cap fall prevention can abut with described stop flange, with stop described insulation button from described moulding open-ended in come off.
Wherein in an embodiment, described promotion post is multiple, and be disposed on described stop flange, described chute correspondence is set to multiple, and described chute is blind end axially the extending towards the middle part of described lead along described lead from described lead.
Wherein in an embodiment, described chute is semi-cylindrical recesses, described promotion post be with the mating shapes of described chute, cross section is that circle lacks the cylinder of shape, the end that described movable holddown is provided with the first dentalation is provided with location notch, and the end abutment of the free end of described promotion post is in described location notch.
Wherein in an embodiment, each described connector assembly also comprises fixed block, and described fixed block is enclosed in the opening part of described gathering sill, and the two ends of described return springs abut against with described movable holddown and described fixed block respectively.
Wherein in an embodiment, described fixed block is cirque structure, and the outer wall of described fixed block is provided with external screw thread, inwall is provided with internal thread, the opening inwall of described gathering sill be provided with described fixed block expose the internal thread that line matches, the end face at described conductive pole two ends is vertically provided with the stud be screwed with the internal thread of described fixed block.
Wherein in an embodiment, the sidewall of described conductive pole is provided with spline groove, and the inwall of described nest is provided with anti-slip tank, and after moulding, corresponding described spline groove is provided with spline boss to described moulding, and corresponding described anti-slip tank is provided with anti-skidding projection.
Wherein in an embodiment, the middle part of described moulding is provided with two catch rings, and described two catch rings were around described moulding one week, and interval is arranged, and jointly to form an annular stopper slot, described nest embeds in described stopper slot.
Wherein in an embodiment, one end of described nest is provided with orthohexagonal instrument flange, and described instrument flange, around one end outer wall one week of described nest, can drive described nest to rotate by instrument flange described in spanner clamping.
[accompanying drawing explanation]
Fig. 1 is the axial section of the cable flame proof joint design of the light fixture of embodiment of the present invention;
The axial section at another visual angle of the cable flame proof joint design that Fig. 2 is the light fixture shown in Fig. 1;
Axial cutaway view after the cable flame proof joint design removing connector assembly that Fig. 3 is the light fixture shown in Fig. 1;
The stereogram of the nest of the cable flame proof joint design that Fig. 4 is the light fixture shown in Fig. 1;
Fig. 5 is the axial section of the nest shown in Fig. 4;
The stereogram of the adapter assembly of the cable flame proof joint design that Fig. 6 is the light fixture shown in Fig. 1.
[embodiment]
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
Refer to Fig. 1 and Fig. 2, the cable flame proof joint design 100 of the light fixture of embodiment of the present invention, comprise nest 110, conductive pole 120, moulding 130 and two connector assemblies 140.Moulding 130 is fixedly connected with nest 110 and conductive pole 120, and plays electric insulation effect.Two connector assemblies 140 are located at the two ends of moulding 130 respectively, for clamping wire, and are conducted by conductive pole 120.
See also Fig. 4 and Fig. 5, nest 110 is tube structure, and the outer wall of nest 110 is provided with flame proof thread 111.Preferably, the number of threads of flame proof thread 111 is greater than 5.Specifically in the illustrated embodiment in which, nest 110 is metallic cylinder.Certainly, in the present invention, nest 110 also can be the cylindrical shell of other shapes, such as, and round outside but spuare inside cylindrical shell.
Further, one end of nest 110 is provided with orthohexagonal instrument flange 112, and instrument flange 112, around one end outer wall one week of nest 110, can drive nest 110 to rotate by spanner clamping instrument flange 112.Because instrument flange 112 is beneficial to spanner clamping, thus comparatively easily nest 110 is screwed in the screw of the explosion-proof chamber of light fixture.
Conductive pole 120 is arranged in nest 110, there is gap between the periphery of conductive pole 120 and the inwall of nest 110, and gap is around the periphery one week of conductive pole 120.In concrete illustrated embodiment, the length of conductive pole 120 is less than the length of nest 110, and correspondingly with nest 110 arranges.
See also Fig. 3, moulding 130 is injected and molded in gap, moulding 130 is long tubular construction, nest 110 is set in the middle part of moulding 130, the two ends of nest 110 are made all to expose to outside nest 110, conductive pole 120 is contained in nest 110, and the two ends outer wall of moulding 130 is provided with cable-through hole 131, the inner space of cable-through hole 131 and moulding 130.Specifically in the illustrated embodiment in which, moulding 130 is PPS working of plastics (PPS, polyphenylene sulfide, English name: Phenylenesulfide).
Further, the sidewall of conductive pole 120 is provided with spline groove 122, and the inwall of nest 110 is provided with anti-slip tank 113, and after moulding, corresponding spline groove 122 is provided with spline boss 132 to moulding 130, and corresponding anti-slip tank 113 is provided with anti-skidding protruding 133.Because conductive pole 120 is provided with spline groove 122, moulding 130 forms the spline boss 132 matched with spline groove 122, rotate relative to moulding 130 to prevent conductive pole 120.In addition, the inwall of nest 110 is provided with anti-slip tank 113, moulding 130 forms match with anti-slip tank 113 anti-skidding protruding 133, slides relative to nest 110 to prevent moulding 130.
Specifically in the illustrated embodiment in which, spline groove 122 is for being located at the rectangular recess on the sidewall of conductive pole 120, and spline platform is be located at the rectangular boss on the inwall of moulding 130.Anti-slip tank 113 for the cross section be located on the inwall of nest 110 be the cannelure of V-arrangement, and cannelure rounds along the circumference of nest 110; Anti-skidding protruding 133 for the cross section be located on the outer wall of moulding 130 be the annular protrusion of V-arrangement, and annular protrusion rounds along the circumference of moulding 130.
Further, the middle part of moulding 130 is provided with two catch rings, 134, two catch rings 134 around moulding 130 1 weeks, and interval is arranged, and jointly to form an annular stopper slot (figure does not mark), nest 110 embeds in stopper slot.Because nest 110 embeds in the stopper slot of moulding 130, connect nest 110 to firmly fix, prevent nest 110 to be separated with moulding 130.
Two connector assemblies 140 to be arranged on respectively in moulding 130 two ends and to conduct with the two ends of conductive pole 120, and each connector assembly 140 comprises lead 141, movable holddown 143, insulation button 145 and return springs 147.
See also Fig. 6, lead 141 is fixed in moulding 130 end, and lead 141 is provided with gathering sill 141a, wiring hole 141b and chute 141c.Gathering sill 141a extends along the axis of lead 141, and runs through the end face of wherein one end of lead 141, and the other end of lead 141 is blind end.Wiring hole 141b runs through the sidewall of lead 141, and is connected with gathering sill 141a.Chute 141c is located on the outer wall of the blind end of lead 141, and is connected with gathering sill 141a.
Specifically in the illustrated embodiment in which, lead 141 is cylindrical, and the sidewall of its blind end is provided with two parallel relative planar portions 141d, and wiring hole 141b runs through planar portions 141d, and chute 141c is between two planar portions 141d.
Movable holddown 143 is located in the gathering sill 141a of lead 141 slidably, and movable holddown 143 can abut with the bottom of gathering sill 141a, to clamp the end of the wire through the cable-through hole 131 of moulding 130 and the cable-through hole 131 of conductive pole 120.Specifically in the illustrated embodiment in which, one end of movable holddown 143 is provided with guide ledges 143a, the end face of the other end is provided with the first dentalation 143b, and the bottom of gathering sill 141a is provided with the second dentalation 141e(of being meshed with the first dentalation 143b as shown in Figure 1).
Insulation button 145 is located at the open-ended of moulding 130 slidably, and insulation button 145 is provided with and slidably promotes post 145a along chute 141c, promotes post 145a and abuts with movable holddown 143, slide to promote movable holddown 143 in gathering sill 141a.Specifically in the illustrated embodiment in which, insulation button 145 also comprises button cap 145b and stop flange 145c.The one end open of button cap 145b, stop flange 145c is located at the opening periphery of button cap 145b, promotes post 145a and is connected with stop flange 145c.
Further, it is multiple for promoting post 145a, and be disposed on stop flange 145c, the chute 141c correspondence of lead 141 is set to multiple, and chute 141c is blind end axially the extending towards the middle part of lead 141 along lead 141 from lead 141.
Further, chute 141c is semi-cylindrical recesses, promote post 145a be with the mating shapes of chute 141c, cross section is the cylinder that circle lacks shape, the end that movable holddown 143 is provided with the first dentalation 143b is provided with location notch 143c, promotes the end abutment of the free end of post 145a in location notch 143c.
Abut with movable holddown 143 in the gathering sill 141a that return springs 147 is arranged on lead 141, concrete, one end of return springs 147 is set on guide ledges 143a.Movable holddown 143 under the elastic force effect of return springs 147 towards the basal sliding of the gathering sill 141a of lead 141.Specifically in the illustrated embodiment in which, return springs 147 is set in the Compress Spring on guide ledges 143a for one end.
Wherein, during pressing insulation button 145, insulation button 145 compresses movable holddown 143 by promoting post 145a, make the bottom part of movable holddown 143 and gathering sill 141a from; When unclamping insulation button 145, movable holddown 143 automatically resets under the elastic force effect of return springs 147.
Further, each connector assembly 140 also comprises cap fall prevention 148, and cap fall prevention 148 is connected with the end winding support of moulding 130, and is set on button cap 145b, cap fall prevention 148 can abut with stop flange 145c, with stop insulation button 145 from moulding 130 open-ended in come off.
It should be noted that, cap fall prevention 148 can omit, now, insulation button 145 can adopt self parts to reach the object of anticreep, such as, insulation button 145 is set up defences de-protruding, the open-ended inwall of moulding 130 is provided with L-type gathering sill 141a, this L-type gathering sill 141a comprises deep-slotted chip breaker portion and straight-line groove portion, deep-slotted chip breaker portion is near the open-ended setting of moulding 130, and the one end in deep-slotted chip breaker portion is provided with the open-ended stage portion being positioned at moulding 130, the other end is communicated with straight-line groove portion, straight-line groove portion extends along the axis of moulding 130, deep-slotted chip breaker portion extends along the circumference of moulding 130.The anticreep projection of insulation button 145 slips in deep-slotted chip breaker portion from stage portion, arcuately groove portion slides in straight-line groove portion, and linearly groove portion can slidably reciprocate, thus play guide effect, and be difficult to come off from deep-slotted chip breaker portion, to play the effect of anticreep under the elastic force effect of return springs 147.
Further, each connector assembly 140 also comprises fixed block 149, and fixed block 149 is enclosed in the opening part of the gathering sill 141a of guide 141, and the two ends of return springs 147 abut against with movable holddown 143 and fixed block 149 respectively.Specifically in the illustrated embodiment in which, fixed block 149 is cirque structure, and the outer wall of fixed block 149 is provided with external screw thread, inwall is provided with internal thread, the opening inwall of gathering sill 141a be provided with fixed block 149 expose the internal thread that line matches, the end face at conductive pole 120 two ends is vertically provided with the stud 123 be screwed with the internal thread of fixed block 149.
It should be noted that, when fixed block 149 omits, lead 141 is directly fixedly connected with conductive pole 120, and such as, the opening size of the size of the stud 123 of conductive pole 120 and the gathering sill 141a of lead 141 is suitable, and is screwed.
It should be noted that, conduct with conductive pole 120 to realize connector assembly 140, lead 141 is electric-conductor, and the one end at gathering sill 141a opening place directly contacts with conductive pole 120; Or, movable holddown 143, return springs 147, fixed block 149 are electric-conductor, wire is conducted by movable holddown 143, return springs 147 and fixed block 149 and conductive pole 120, or lead 141, movable holddown 143, return springs 147, fixed block 149 are electric-conductor.
The cable flame proof joint design 100 of above-mentioned light fixture is described below in conjunction with specific embodiment.
The orthohexagonal instrument flange 112 of the upper end of nest 110, the use of assembling is rotated for spanner, the flame proof thread 111 on the face of cylinder, lower end, for being linked and packed use with the housing of light fixture, a big hole is had in the middle of nest 110, after assembling conductive pole 120, inject PPS plastics, circular-hole internal-wall has the anti-slip tank 113 of V-arrangement, prevents moulding 130 from coming off.Conductive pole 120 is cylindrical, and respectively there is a stud at two ends, and for assembling the connector assembly 140 at two ends, the face of cylinder has a spline groove 122, after preventing injection moulding, conductive pole 120 rotates.Moulding 130 in the middle of flame proof joint effectively can realize the insulation property of conductive pole 120 and nest 110 and housing.Wherein lead 141, movable holddown 143, return springs 147, fixed block 149 forms the connector assembly 140 of a client, be provided with dentalation (i.e. the first dentalation 143b and the second dentalation 141e) with the top of movable holddown 143 bottom the gathering sill 141a of lead 141, wire can be compressed under the effect of return springs 147, prevent wire from getting loose, two cable-through holes 131 of the wherein symmetrical side on the face of cylinder of lead 141, facilitate client's wiring, another symmetrical side is provided with two chute 141c, two promotion post 145a of plastic cement button abut movable holddown 143 by this chute 141c, Compress Spring, the bottom realizing the gathering sill 141a of lead 141 is separated with the dentalation at the top of movable holddown 143, access wire, the opening inwall of the gathering sill 141a of lead 141 is provided with screw thread, is convenient to tighten with fixed block 149 after lead 141 assembles movable holddown 143 and return springs 147, thus forms an assembly.The cylindrical of fixed block 149 is screw, and there is a primary screw hole centre, is convenient to the thread connection at conductive pole 120 two ends of assembly and injection molding body.Insulation button 145 is plastic cement button, and is assemblied in the top of lead 141, then covers cap fall prevention 148.When needs wiring, press insulation button 145, just can wiring from the cable-through hole 131 at moulding 130 two ends, convenient, fast.
The outer wall of the nest 110 of the cable flame proof joint design 100 of above-mentioned light fixture is provided with flame proof thread 111, directly can realize explosion-proof chamber and be connected with the flame proof in other chamber, meet GB3836.2-2010 flame proof standard-required.The two ends of moulding 130 are provided with the connector assembly 140 that elasticity holds wire, during wiring, only need press insulation button 145, wire is filled in the wiring hole 141b of moulding 130, just can realize wiring, convenient, fast, without the need to being transferred by junction block again, therefore, cable flame proof joint design 100 wiring of above-mentioned light fixture is comparatively quick and easy.
In addition, moulding 130 and the connector assembly 140 being positioned at its two ends, two ends wire is not only made reliably to insulate connection, and the electric clearance of joint and creepage distance meet the requirement of GB3836.3-2010 INCREASEDSAFETY explosion-proof criteria and GB3836.4-2010 intrinsic safety type explosion-proof criteria, therefore above-mentioned cable flame proof joint design 100 can be used for explosion-proof chamber and increases the switching pacified between chamber, also can be used for the switching between explosion-proof chamber and intrinsic safety chamber, apply comparatively extensive.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a cable flame proof joint design for light fixture, is characterized in that, comprising:
For the nest of tube structure, the outer wall of described nest is provided with flame proof thread;
Be arranged on the conductive pole in described nest, there is gap between the periphery of described conductive pole and the inwall of described nest, described gap is around the periphery one week of described conductive pole;
Be injected and molded in the moulding in described gap, described moulding is long tubular construction, described nest is set in the middle part of described moulding, the two ends of described nest are made all to expose to outside described nest, described conductive pole is contained in described nest, the two ends outer wall of described moulding is provided with cable-through hole, the inner space of described cable-through hole and described moulding;
To be arranged on respectively in described moulding two ends and two connector assemblies conducted with the two ends of described conductive pole, each described connector assembly comprises:
Be fixed on the lead in described moulding end, described lead is provided with gathering sill, wiring hole and chute, described gathering sill extends along the axis of described lead, and runs through the end face of wherein one end of described lead, and the other end of described lead is blind end; Described wiring hole runs through the sidewall of described lead, and is connected with described gathering sill; Described chute is located on the outer wall of the blind end of described lead, and is connected with described gathering sill;
Be located at the movable holddown in described gathering sill slidably, described movable holddown can abut with the bottom of described gathering sill, to clamp the end of the wire through the cable-through hole of described moulding and the cable-through hole of described conductive pole;
Be located at the open-ended insulation button of described moulding slidably, described insulation button is provided with and slidably promotes post along described chute, and described promotion post abuts with described movable holddown, slides in described gathering sill to promote described movable holddown;
To be arranged in described gathering sill and the return springs abutted with described movable holddown, described movable holddown under the elastic force effect of described return springs towards the basal sliding of described gathering sill;
Wherein, when pressing described insulation button, described insulation button compresses described movable holddown by described promotion post, make the bottom part of described movable holddown and described gathering sill from; When unclamping described insulation button, described movable holddown automatically resets under the elastic force effect of described return springs.
2. the cable flame proof joint design of light fixture as claimed in claim 1, it is characterized in that, one end of described movable holddown is provided with guide ledges, the end face of the other end is provided with the first dentalation, the bottom of described gathering sill is provided with the second dentalation be meshed with described first dentalation, and one end of described return springs is set in described guide ledges.
3. the cable flame proof joint design of light fixture as claimed in claim 2, it is characterized in that, each described connector assembly also comprises cap fall prevention, described insulation button comprises the button cap of one end open and is located at the stop flange of opening periphery of described button cap, described cap fall prevention is connected with the end winding support of described moulding, and be set on described button cap, described cap fall prevention can abut with described stop flange, with stop described insulation button from described moulding open-ended in come off.
4. the cable flame proof joint design of light fixture as claimed in claim 3, it is characterized in that, described promotion post is multiple, and be disposed on described stop flange, described chute correspondence is set to multiple, and described chute is blind end axially the extending towards the middle part of described lead along described lead from described lead.
5. the cable flame proof joint design of light fixture as claimed in claim 4, it is characterized in that, described chute is semi-cylindrical recesses, described promotion post be with the mating shapes of described chute, cross section is that circle lacks the cylinder of shape, the end that described movable holddown is provided with the first dentalation is provided with location notch, and the end abutment of the free end of described promotion post is in described location notch.
6. the cable flame proof joint design of light fixture as claimed in claim 1, it is characterized in that, each described connector assembly also comprises fixed block, and described fixed block is enclosed in the opening part of described gathering sill, and the two ends of described return springs abut against with described movable holddown and described fixed block respectively.
7. the cable flame proof joint design of light fixture as claimed in claim 6, it is characterized in that, described fixed block is cirque structure, and the outer wall of described fixed block is provided with external screw thread, inwall is provided with internal thread, the opening inwall of described gathering sill be provided with described fixed block expose the internal thread that line matches, the end face at described conductive pole two ends is vertically provided with the stud be screwed with the internal thread of described fixed block.
8. the cable flame proof joint design of light fixture as claimed in claim 1, it is characterized in that, the sidewall of described conductive pole is provided with spline groove, the inwall of described nest is provided with anti-slip tank, described moulding after moulding, corresponding described spline groove is provided with spline boss, and corresponding described anti-slip tank is provided with anti-skidding projection.
9. the cable flame proof joint design of light fixture as claimed in claim 1, it is characterized in that, the middle part of described moulding is provided with two catch rings, described two catch rings were around described moulding one week, and interval is arranged, jointly to form an annular stopper slot, described nest embeds in described stopper slot.
10. the cable flame proof joint design of light fixture as claimed in claim 1, it is characterized in that, one end of described nest is provided with orthohexagonal instrument flange, described instrument flange, around one end outer wall one week of described nest, can drive described nest to rotate by instrument flange described in spanner clamping.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310334871.2A CN104347968B (en) | 2013-08-02 | 2013-08-02 | The cable flame proof joint design of light fixture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310334871.2A CN104347968B (en) | 2013-08-02 | 2013-08-02 | The cable flame proof joint design of light fixture |
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| CN104347968A true CN104347968A (en) | 2015-02-11 |
| CN104347968B CN104347968B (en) | 2018-02-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732562A (en) * | 2017-09-25 | 2018-02-23 | 南方电网科学研究院有限责任公司 | Cable connector explosion-protection equipment and its installation method |
| CN109378605A (en) * | 2018-09-21 | 2019-02-22 | 深圳供电局有限公司 | Plug-in type cable connector |
| CN109459667A (en) * | 2019-01-04 | 2019-03-12 | 国网江苏省电力有限公司宿迁供电分公司 | A kind of controller |
| CN110611206A (en) * | 2018-09-30 | 2019-12-24 | 中航光电科技股份有限公司 | Connector assembly and tail accessory thereof |
| EP3608924A1 (en) * | 2018-08-07 | 2020-02-12 | Yokogawa Electric Corporation | Explosion-proof structure |
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| CN2798373Y (en) * | 2005-07-07 | 2006-07-19 | 东莞大朗金准电器厂 | Explosion proofing lamp socket |
| CN102052654A (en) * | 2009-11-06 | 2011-05-11 | 海洋王照明科技股份有限公司 | Explosion-proof wire holder |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732562A (en) * | 2017-09-25 | 2018-02-23 | 南方电网科学研究院有限责任公司 | Cable connector explosion-protection equipment and its installation method |
| CN107732562B (en) * | 2017-09-25 | 2024-02-13 | 南方电网科学研究院有限责任公司 | Explosion-proof device for cable joint and installation method thereof |
| EP3608924A1 (en) * | 2018-08-07 | 2020-02-12 | Yokogawa Electric Corporation | Explosion-proof structure |
| JP2020025025A (en) * | 2018-08-07 | 2020-02-13 | 横河電機株式会社 | Explosion-proof construction |
| CN110829684A (en) * | 2018-08-07 | 2020-02-21 | 横河电机株式会社 | Explosion-proof structure |
| US11018485B2 (en) | 2018-08-07 | 2021-05-25 | Yokogawa Electric Corporation | Explosion-proof structure |
| CN110829684B (en) * | 2018-08-07 | 2021-08-13 | 横河电机株式会社 | Explosion-proof structure |
| CN109378605A (en) * | 2018-09-21 | 2019-02-22 | 深圳供电局有限公司 | Plug-in type cable connector |
| CN109378605B (en) * | 2018-09-21 | 2024-01-19 | 深圳供电局有限公司 | Plug-in type cable connector |
| CN110611206A (en) * | 2018-09-30 | 2019-12-24 | 中航光电科技股份有限公司 | Connector assembly and tail accessory thereof |
| CN109459667A (en) * | 2019-01-04 | 2019-03-12 | 国网江苏省电力有限公司宿迁供电分公司 | A kind of controller |
| CN109459667B (en) * | 2019-01-04 | 2024-04-09 | 国网江苏省电力有限公司宿迁供电分公司 | Controller |
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|---|---|
| CN104347968B (en) | 2018-02-06 |
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