CN206412746U - Earth leakage protective device - Google Patents
Earth leakage protective device Download PDFInfo
- Publication number
- CN206412746U CN206412746U CN201620997748.8U CN201620997748U CN206412746U CN 206412746 U CN206412746 U CN 206412746U CN 201620997748 U CN201620997748 U CN 201620997748U CN 206412746 U CN206412746 U CN 206412746U
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- wire
- shell
- clip mechanism
- protective device
- wire clamp
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Abstract
The utility model discloses a kind of earth leakage protective device, including shell and detection of electrical leakage component, detection of electrical leakage component is arranged in shell by base, the wire hole that shell is passed through provided with power supply cable, close to clip mechanism of the position of wire hole provided with clamping cable in shell, clip mechanism includes wire clamp seat, it is arranged on the wire clip above wire clamp seat, wire clamp seat is connected by screw with wire clip, provided with the mounting groove being adapted to wire clamp seat in the shell, the fixture that the locating part for preventing center line of the clip mechanism along wire hole from moving and limitation clip mechanism are moved along vertical center line direction is additionally provided with shell, side of the wire clamp seat away from wire hole is provided with connecting seat, connecting seat is provided with pilot hole, the lead of the pilot hole is provided through on the base, wire clamp seat fluctuates along lead.
Description
Technical field
The utility model belongs to electrical protection equipment technical field, especially a kind of earth leakage protective device.
Background technology
Earth leakage protective device, abbreviation leakage switch, is called RCCB, is primarily used to when leak current fault occurs for equipment
And to there is the personal electrical shock protection of fatal risk, with overload and short-circuit protection function, can be used to protection circuit or motor
Overload and short circuit, also can under normal circumstances as circuit infrequently conversion start be used.
General earth leakage protective device includes shell and base, and base is arranged in shell, and shell includes drain pan and bottom, bottom
Shell and bottom are connected by screw, and the wire hole that shell is passed through provided with power supply cable, wire hole is provided with sealing ring, shell
Close to wire hole position provided with clamping cable clip mechanism, clip mechanism include be fixed on drain pan wire clamp seat, set
The wire clip above wire clamp seat is put, wire clamp seat is connected by screw with wire clip.
When in use, the cable at wire hole coordinates to reach waterproof earth leakage protective device by the sealing with sealing ring
And other effects, under many circumstances, earth leakage protective device is the outdoor electrical equipment used, there is very high requirement to waterproof, but in reality
During use, cable is not necessarily constantly in the position of center line of wire hole, once deviate the position of center line of wire hole,
Cable pair sealing ring, which will be produced along pullling for sealing ring radial direction, makes sealed ring deformation, causes the sealing at wire hole
Difference, thus the waterproof effect at existing earth leakage protective device wire hole be extremely difficult to require, and in the prior art wire clamp seat with
Drain pan is to be fixedly connected, i.e. integral structure, and after cable is locked, the cable in clip mechanism can be less than wire hole
Center line, so sealing ring can be produced one it is downward pull power, cause sealed ring deformation, therefore a kind of earth leakage protective device
The external diametrical extent of corresponding cable is also smaller, it is now desired to have a kind of good water-proof effect and the earth leakage protective having a wide range of application
Device is supplied to user.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides one kind than prior art good airproof performance, using model
Enclose wider array of earth leakage protective device.
To achieve these goals, the technical solution adopted in the utility model is：A kind of earth leakage protective device, including shell and
Detection of electrical leakage component, detection of electrical leakage component is arranged in shell by base, the wire hole that shell is passed through provided with power supply cable,
Close to clip mechanism of the position of wire hole provided with clamping cable in shell, clip mechanism includes wire clamp seat, is arranged on wire clamp
Wire clip above seat, wire clamp seat is connected by screw with wire clip, it is characterised in that：It is provided with suitable with wire clamp seat in the shell
The locating part for preventing center line of the clip mechanism along wire hole from moving and limitation clip mechanism are additionally provided with the mounting groove matched somebody with somebody, shell
The fixture moved along vertical center line direction, side of the wire clamp seat away from wire hole is provided with connecting seat, connecting seat
Provided with pilot hole, the lead of the pilot hole is provided through on the base, wire clamp seat fluctuates along lead.
In said structure, now wire clamp seat is loaded in mounting groove, then base is loaded in shell, the lead on base is worn
The pilot hole crossed on connecting seat, cable is placed in wire clamp seat through wire hole, then by wire clip and screw-driving, because of wire clamp
Mechanism is to separate with shell, so with the tension of cable, clip mechanism also fluctuates therewith, one conjunction of adjust automatically
Suitable position, makes cable be in position of center line all the time, sealing ring will not thus be produced and downward pull and cause close
Seal is deformed, and improves security, extends the service life of earth leakage protective device, be because of the direction of motion of clip mechanism above and below, so
The setting of locating part and fixture is, in order to avoid clip mechanism rear left and right directions movement forward, to influence the adjustment of clip mechanism.
As further setting of the present utility model, the locating part is positioned at gear of the clip mechanism away from wire hole side
Wall, fixture is the fixation wall positioned at clip mechanism two ends, and the exterior contour of retaining wall and fixation wall along clip mechanism is around connection
Form described mounting groove.
In said structure, mounting groove is surrounded by retaining wall and fixation wall, shape and clip mechanism that retaining wall and fixation wall are surrounded
Exterior contour it is consistent, and retaining wall and fixation wall are integrated connection, the passage that retaining wall is passed through provided with confession connecting seat, i.e., to connection
The floating of seat provides space, and the inwall of mounting groove and the outer wall gap of clip mechanism coordinate, because clip mechanism will be in mounting groove
Float, so to reduce friction, it is to avoid the adjustment of influence clip mechanism.
As further setting of the present utility model, the lead is provided with limiting plate, and limiting plate is located at connecting seat
The height of top, the retaining wall and fixation wall is more than the floating distance of clip mechanism.
In said structure, if the setting without limiting plate, connecting seat is easily disengaged with lead, and the setting of limiting plate is also
In order to provide the floating distance of clip mechanism, if retaining wall and the insufficient height of fixation wall, when easily causing clip mechanism adjustment, surpass
Retaining wall or fixation wall are crossed, is shifted if this is clip mechanism, then clip mechanism cannot be dropped back into mounting groove, influence is normal
Use, there is also certain gap between the outer wall of lead and the inwall of pilot hole, can so reduce frictional force to wire clamp machine
The influence that structure floats, makes the cable on clip mechanism try one's best not and pulls power to sealing ring production.
As further setting of the present utility model, it is connected with the wire hole in fixed cover, fixed cover provided with sealing
The capping that set and fixing seal cover, capping and sealing shroud extrusion fit, the outer peripheral face of capping and the inwall of fixed cover are interference fitted.
In said structure, sealing shroud is filled in fixed cover, capping is then pressed into, is fixed sealing shroud by covering,
Fixed cover coordinates solid and reliable with capping, capping can only could be split out from fixed cover by instrument, can thus avoided close
Big envelope loosen phenomenon, better tightness, because sealing be set at the opening of fixed cover it is remote enough, so the pulling of external electrical cable
Influence to sealing shroud is smaller, therefore sealing shroud will not intake because the pulling of external electrical cable causes sealing shroud gross distortion,
Cover the extruding to sealing shroud and also effectively raise sealing effectiveness.
As further setting of the present utility model, the sealing shroud is into cylindrical shape, and sealing shroud is provided with to be passed through for wire
Lead channels, the two ends of lead channels are provided with sealing ring.
In said structure, the sealing ring in sealing shroud has two, equivalent to there is twice protection, so as to improve protection energy
Power, can also meet the cable of various outer diameter.
As further setting of the present utility model, the sealing shroud includes into the link of cylindrical shape, is connected to connection
The sealing ring at frame two ends, the lead channels of sealing ring are provided with sealing ring, and the link is made of plastic material, sealing ring
It is made of elastomeric material.
In said structure, the setting of link can be unlikely to deform sealing shroud, improve the sealing ring in sealing, sealing shroud
There are two, equivalent to there is twice protection, so as to improve protective capacities, the cable of various outer diameter can also be met.
As it is of the present utility model it is further set, the two ends outer peripheral face of the link is provided with step-like annular recessed
Groove, sealing ring is set on the annular groove.
In said structure, two shoulders of the annular groove equivalent to link at link two ends, one end set of sealing ring
The bottom surface of the annular groove is located at, the attachment structure of similar grafting is formed, more solid and reliable, the outer peripheral face of sealing ring and company is connected
The outer peripheral face for connecing frame is flushed, by the extruding of capping, closer, the better tightness that link can be connected with sealing ring.
As further setting of the present utility model, described cover into is respectively equipped with cylinder, the two ends outer wall of capping
Snap ring is arranged with the side face of inward flange and outward flange, inward flange and outward flange, the inwall of the fixed cover is provided with and this
Position limiting convex ring is additionally provided with the annular groove of snap ring formation clamping, the side face of the outward flange.
In said structure, capping is engaged by clamping by snap ring with fixed cover formation, and the external diameter of position limiting convex ring is more than fixed cover
External diameter, i.e. the opening of fixed cover is connected on the side of annular convex ring, so can not only avoid covering the transition to sealing shroud
Extruding, can also avoid capping is whole from being absorbed in the situation for causing capping can not be split out out of fixed cover in fixed cover, sealing shroud
By the effect of the snap ring of capping, it is buckled in fixed cover, fixed cover, sealing shroud and capping three are fitted close, can be effective
Prevent water or grit from entering in shell.
As further setting of the present utility model, described cover into is respectively equipped with cylinder, the two ends outer wall of capping
Snap ring is arranged with the side face of inward flange and outward flange, inward flange and outward flange, the inwall of the fixed cover is provided with and this
Position limiting convex ring is additionally provided with the annular groove of snap ring formation clamping, the side face of the outward flange.
Using such scheme, cable is set to be always positioned at the centerline of wire hole by the floating of clip mechanism, it is to avoid
Cable pair sealing shroud, which produces downward power of pullling, deforms sealing shroud, influences sealing, passes through fixed cover, sealing shroud and capping
Tight fit sealing shroud is pullled to reduce external electrical cable, improve sealing, it is to avoid water or grit enter in shell.
The utility model is further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Accompanying drawing 1 is the structure decomposition figure of the utility model specific embodiment clip mechanism；
Accompanying drawing 2 is the structure decomposition figure of the utility model specific embodiment bottom plate；
Accompanying drawing 3 is the utility model specific embodiment partial sectional view；
Accompanying drawing 4 is the structure sectional view of the utility model specific embodiment sealing shroud.
Embodiment
The utility model is specifically described below by embodiment, is served only for carrying out further the utility model
Explanation, it is impossible to be interpreted as the restriction to the utility model protection domain, the technician in the field can be according to above-mentioned practical new
The content of type makes some nonessential modifications and adaptations to the utility model.
Specific embodiment of the utility model as Figure 1-4, a kind of earth leakage protective device, including shell 1 and detection of electrical leakage
Component 2, detection of electrical leakage component 2 is arranged in shell 1 by base 3, the wire hole 11 that shell 1 is passed through provided with power supply cable,
Close to clip mechanism 4 of the position of wire hole 11 provided with clamping cable in shell 1, clip mechanism 4 includes wire clamp seat 41, set
Wire clip 42 in the top of wire clamp seat 41, wire clamp seat 41 is connected by screw 43 with wire clip 42, is provided with and line in the shell 1
The locating part for preventing center line of the clip mechanism 4 along wire hole 11 from moving is additionally provided with the mounting groove 12 that holder 41 is adapted to, shell 1
13 fixtures 14 moved with limitation clip mechanism 4 along vertical center line direction, the side of the wire clamp seat 41 away from wire hole 11
Face is provided with connecting seat 44, and connecting seat 44 is provided with the guiding that the pilot hole 441 is provided through on pilot hole 441, the base 3
Post 31, wire clamp seat 41 fluctuates along lead 31.Now wire clamp seat 41 is loaded in mounting groove 12, then base 3 is loaded into shell 1
Interior, the lead 31 on base 3 is through the pilot hole 441 on connecting seat 44, and cable is placed in wire clamp seat 41 through wire hole 11
On, then tightened by wire clip 42 and screw 43, because clip mechanism 4 with shell 1 is to separate, so with the drawing of cable
Tightly, clip mechanism 4 also fluctuates therewith, the suitable position of adjust automatically one, cable is in position of center line all the time,
Thus will not be downward to sealing ring generation pull and cause sealed ring deformation, improves security, extension earth leakage protective device
Service life, be because of the direction of motion of clip mechanism 4 above and below, so the setting of locating part 13 and fixture 14 is in order to avoid line
The rear left and right directions movement forward of clamp mechanism 4, influences the adjustment of clip mechanism 4.
Above-mentioned locating part 13 is that, positioned at retaining wall of the clip mechanism 4 away from the side of wire hole 11, fixture 14 is positioned at wire clamp
The fixation wall at the two ends of mechanism 4, the exterior contour of retaining wall and fixation wall along clip mechanism 4 is around the mounting groove described in connection formation
12.Mounting groove 12 is surrounded by retaining wall and fixation wall, the shape that retaining wall and fixation wall are surrounded and the exterior contour one of clip mechanism 4
Cause, and retaining wall and fixation wall are integrated connection, retaining wall is provided with the passage passed through for connecting seat 44, the i.e. floating to connecting seat 44
Space is provided, the inwall of mounting groove 12 coordinates with the outer wall gap of clip mechanism 4, because clip mechanism 4 will be floated in mounting groove 12
It is dynamic, so to reduce friction, it is to avoid the adjustment of influence clip mechanism 4.
Above-mentioned lead 31 is provided with limiting plate 32, and limiting plate 32 is located at the top of connecting seat 44, the retaining wall and fixation
The height of wall is more than the floating distance of clip mechanism 4.If the setting without limiting plate 32, connecting seat 44 is easily de- with lead 31
Open, the setting of limiting plate 32, if retaining wall and the insufficient height of fixation wall, is held also for the floating distance of regulation clip mechanism 4
When easily causing the adjustment of clip mechanism 4, more than retaining wall or fixation wall, shifted if this is clip mechanism 4, then clip mechanism 4
It cannot drop back into mounting groove 12, influence is normally used, and there is also one between the outer wall of lead 31 and the inwall of pilot hole 441
Fixed gap, can so reduce the influence that frictional force is floated to clip mechanism 4, the cable on clip mechanism 4 is tried one's best not right
Power is pullled in sealing ring production.
Envelope provided with sealing shroud 16 and fixing seal set 16 is connected with fixed cover 15, fixed cover 15 on above-mentioned wire hole 11
Lid 17, capping 17 and the extrusion fit of sealing shroud 16, the outer peripheral face of capping 17 are interference fitted with the inwall of fixed cover 15.Sealing shroud
16 are filled in fixed cover 15, are then pressed into capping 17, are fixed sealing shroud 16 by capping 17, and fixed cover 15 is matched somebody with somebody with capping 17
Close solid and reliable, capping 17 can only could be split out from fixed cover 15 by instrument, thus sealing shroud 16 can be avoided to loosen
Phenomenon, better tightness, because sealing shroud 16 to fixed cover 15 opening at it is remote enough, so the pulling of external electrical cable is to close
The influence of big envelope 16 is smaller, therefore sealing shroud 16 will not enter because the pulling of external electrical cable causes the gross distortion of sealing shroud 16
Water, the extruding of 17 pairs of sealing shrouds 16 of capping also effectively raises sealing effectiveness.
Above-mentioned sealing shroud 16 is provided with the lead channels 161 passed through for wire, lead channels into cylindrical shape, sealing shroud 16
161 two ends are provided with sealing ring 162.Sealing ring 162 in sealing shroud 16 has two, equivalent to there is twice protection, so as to improve
Protective capacities, can also meet the cable of various outer diameter.
Above-mentioned sealing shroud 16 includes into the link 163 of cylindrical shape, is connected to the sealing ring 164 at the two ends of link 163, close
The lead channels 161 of seal 164 are provided with sealing ring 162, and the link 163 is made of plastic material, and sealing ring 164 is adopted
It is made of elastomeric material.The setting of link 163 can be unlikely to deform sealing shroud 16, improve close in sealing, sealing shroud 16
Seal ring 162 has two, equivalent to there is twice protection, so as to improve protective capacities, can also meet the cable of various outer diameter.
The two ends outer peripheral face of above-mentioned link 163 is provided with step-like annular groove 1631, and sealing ring 164 is set in this
On annular groove 1631.The annular groove 1631 at the two ends of link 163 is equivalent to two shoulders of link 163, sealing ring 164
One end be set in the bottom surface of the annular groove 1631, form the attachment structure of similar grafting, connect more solid and reliable, sealing ring
164 outer peripheral face and the outer peripheral face of link 163 are flushed, by the extruding of capping 17, link 163 and sealing ring 164
What can be connected closer, better tightness.
Above-mentioned capping 17 is respectively equipped with inward flange 171 and outward flange 172 into cylinder on the two ends outer wall for covering 17, interior
Snap ring 173 is arranged with the side face of flange 171 and outward flange 172, the inwall of the fixed cover 15 is provided with and the snap ring 173
Formed on the annular groove 151 of clamping, the side face of the outward flange 172 and be additionally provided with position limiting convex ring 1721.Capping 17 passes through snap ring 173
It is engaged by clamping with the formation of fixed cover 15, the external diameter of position limiting convex ring 1721 is more than the opening of the external diameter, i.e. fixed cover 15 of fixed cover 15
On the side for being connected to annular convex ring 1721, the transition extruding of 17 pairs of sealing shrouds 16 of capping so can be not only avoided, can also be kept away
Exempt from capping 17 and be entirely absorbed in the situation for causing capping 17 can not be split out out of fixed cover 15 in fixed cover 15, sealing shroud 16 passes through
The effect of the snap ring 173 of capping 17, is buckled in fixed cover 15, and fixed cover 15, sealing shroud 16 and 17 threes of capping closely match somebody with somebody
Close, can effectively prevent water or grit from entering in shell 1.
Claims (9)
1. a kind of earth leakage protective device, including shell and detection of electrical leakage component, detection of electrical leakage component are arranged in shell by base,
Close to wire clamp machine of the position of wire hole provided with clamping cable in the wire hole that shell is passed through provided with power supply cable, shell
Structure, clip mechanism includes wire clamp seat, the wire clip being arranged on above wire clamp seat, and wire clamp seat is connected by screw with wire clip, its
It is characterised by：Provided with the mounting groove being adapted to wire clamp seat in the shell, prevention clip mechanism is additionally provided with shell along wire hole
Center line movement locating part and the fixture that is moved along vertical center line direction of limitation clip mechanism, the wire clamp seat is remote
The side of wire hole is provided with connecting seat, and connecting seat is provided with the guiding that the pilot hole is provided through on pilot hole, the base
Post, wire clamp seat fluctuates along lead.
2. earth leakage protective device according to claim 1, it is characterised in that：The locating part be positioned at clip mechanism away from go out
The retaining wall of string holes side, fixture is the fixation wall positioned at clip mechanism two ends, the outside of retaining wall and fixation wall along clip mechanism
Profile is around the mounting groove described in connection formation.
3. earth leakage protective device according to claim 2, it is characterised in that：The lead is provided with limiting plate, limiting plate
Positioned at the top of connecting seat, the height of the retaining wall and fixation wall is more than the floating distance of clip mechanism.
4. earth leakage protective device according to claim 3, it is characterised in that：Fixed cover is connected with the wire hole, it is fixed
The capping covered in set provided with sealing shroud and fixing seal, capping and sealing shroud extrusion fit, the outer peripheral face of capping and fixed cover
Inwall is interference fitted.
5. earth leakage protective device according to claim 4, it is characterised in that：The sealing shroud is set on sealing shroud into cylindrical shape
There are the lead channels passed through for wire, the two ends of lead channels are provided with sealing ring.
6. earth leakage protective device according to claim 4, it is characterised in that：The sealing shroud includes into the connection of cylindrical shape
Frame, the sealing ring for being connected to link two ends, the lead channels of sealing ring are provided with sealing ring, and the link uses plastics material
Material is made, and sealing ring is made of elastomeric material.
7. earth leakage protective device according to claim 6, it is characterised in that：The two ends outer peripheral face of the link is provided with platform
The annular groove of scalariform, sealing ring is set on the annular groove.
8. earth leakage protective device according to claim 5, it is characterised in that：It is described to cover into outside cylinder, the two ends of capping
Be respectively equipped with inward flange and outward flange on wall, be arranged with snap ring on the side face of inward flange and outward flange, the fixed cover it is interior
Wall is provided with the annular groove with snap ring formation clamping, the side face of the outward flange and is additionally provided with position limiting convex ring.
9. the earth leakage protective device according to claim 6 or 7, it is characterised in that：It is described to cover into cylinder, the two ends of capping
It is respectively equipped with inward flange and outward flange on outer wall, snap ring is arranged with the side face of inward flange and outward flange, the fixed cover
Inwall is provided with the annular groove with snap ring formation clamping, the side face of the outward flange and is additionally provided with position limiting convex ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620997748.8U CN206412746U (en) | 2016-08-30 | 2016-08-30 | Earth leakage protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620997748.8U CN206412746U (en) | 2016-08-30 | 2016-08-30 | Earth leakage protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206412746U true CN206412746U (en) | 2017-08-15 |
Family
ID=59548641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620997748.8U Withdrawn - After Issue CN206412746U (en) | 2016-08-30 | 2016-08-30 | Earth leakage protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206412746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253214A (en) * | 2016-08-30 | 2016-12-21 | 科都电气有限公司 | Earth leakage protective device |
-
2016
- 2016-08-30 CN CN201620997748.8U patent/CN206412746U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253214A (en) * | 2016-08-30 | 2016-12-21 | 科都电气有限公司 | Earth leakage protective device |
| CN106253214B (en) * | 2016-08-30 | 2018-08-14 | 科都电气有限公司 | Earth leakage protective device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170815 Effective date of abandoning: 20180814 |