CN103915265A - Contact base - Google Patents
Contact base Download PDFInfo
- Publication number
- CN103915265A CN103915265A CN201310005651.5A CN201310005651A CN103915265A CN 103915265 A CN103915265 A CN 103915265A CN 201310005651 A CN201310005651 A CN 201310005651A CN 103915265 A CN103915265 A CN 103915265A
- Authority
- CN
- China
- Prior art keywords
- dustproof
- back side
- splicing
- contact
- contact pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 75
- 239000004576 sand Substances 0.000 abstract description 21
- 230000002265 prevention Effects 0.000 abstract 2
- 239000000428 dust Substances 0.000 description 24
- 230000000694 effects Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 230000033001 locomotion Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- UPLPHRJJTCUQAY-WIRWPRASSA-N 2,3-thioepoxy madol Chemical compound C([C@@H]1CC2)[C@@H]3S[C@@H]3C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@](C)(O)[C@@]2(C)CC1 UPLPHRJJTCUQAY-WIRWPRASSA-N 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000002365 multiple layer Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to a contact base which can guarantee safe, stable and effective operation and using of a small universal change-over switch at flying fine sand areas. The contact base is rectangular and comprises a front splicing face and a back splicing face. The front splicing face is composed of a dustproof wall, a protection wall, clamping hooks and a dustproof boss seat, and the back splicing face is composed of end dustproof grooves, middle dustproof grooves, buckles and a dustproof boss, wherein the end dustproof grooves, the middle dustproof grooves, the buckles and the dustproof boss correspond to the structures of the front splicing face. When the front splicing face and the back splicing face are overlapped, the corresponding structures can be embedded, so that an inner-outer double-layer flying-fine-sand prevention structure is formed at the overlapping face. The double-layer flying-fine-sand prevention structure in the contact base can prevent flying fine sand, and does not increase mounting space and change mounting modes.
Description
Technical field
The present invention relates to a kind of contact pedestal, particularly a kind ofly wreak havoc area at sand and dust and still can guarantee Miniature universal change over switch safety, contact pedestal stable, that effectively move and use.
Background technology
Miniature universal change over switch be a kind of for two-way or two-way the switch with power source or load transfer, obtained in daily life using widely.Contact pedestal is main carriers and the strength member of Miniature universal transfer switch contact system, and its quality height has determined the quality of universal seclector performance.
Existing contact pedestal does not generally design special anti-dust measure; in the time that service time is long or use in the larger environment of sand and dust; switch inside tends to accumulate the grains of sand or dust; thereby it is dumb that switch is rotated; switch contact loose contact; not only affect the performance of switch, and easily caused the danger such as fault and paralysis and personnel death of control appliance or electrical network.
If overcome these shortcomings of contact pedestal, just must give its additional external protector, but this both can increase the triviality of installation, was unfavorable for that again control appliance develops to miniaturization integrated direction.
Summary of the invention
The present invention carries out in order to address the above problem, and object is to provide a kind of contact pedestal with double-deck anti-sand structure.
To achieve these goals, the present invention has adopted following structure:
The invention provides a kind of contact pedestal, it is characterized in that: the profile of described contact pedestal is rectangle, each angle is that 45 degree unload chamfering, there is splicing front and the splicing back side, wherein, the positive central part of described splicing has center through hole, described center through hole each side have a front chute, respectively there is a manhole both sides in addition, between described front chute and each described manhole, all there is a protection walls, respectively there is a dustproof wall both sides of described manhole, the described splicing back side has described center through hole, circular counter bore, back side chute, middle dustproof groove and end dustproof groove, described circular counter bore is corresponding in the positive position of described splicing with described manhole in the position at the described splicing back side, described back side chute is corresponding in the positive position of described splicing with described front chute in the position at the described splicing back side, in the middle of described, dustproof groove is corresponding in the positive position of described splicing with described protection walls in the position at the described splicing back side, described end dustproof groove is corresponding in the positive position of described splicing with described dustproof wall in the position at the described splicing back side.Positioning boss is arranged at the top of described manhole.
In addition, in above-mentioned contact pedestal, can also there is such feature: each end of described protection walls all has a dustproof boss seat.The described splicing back side each side have a dustproof boss, described dustproof boss is corresponding in the positive position of described splicing with described dustproof boss seat in the position at the described splicing back side.Dustproof protruding wall is arranged at the top of described protection walls.Dustproof protruding wall is arranged at the top of described dustproof wall.Described protection walls has even number breach, all has a small-sized step in each described breach.Between each described breach and described dustproof wall, there is front holddown groove.On the described splicing back side, have even number back side holddown groove, the position of described back side holddown groove on the described splicing back side is corresponding in the positive position of described splicing with described front holddown groove.Each end of described protection walls all has a buckle.
Invention effect and effect
The present invention has following technique effect:
Contact pedestal of the present invention is provided with the double-deck anti-sand structure of inner ring and outer ring in base interior, without just can using compared with large area at sand and dust or use for a long time, do not enter in the exterior protection device outside plus sand and dust, effectively not increasing installing space in expansion environment for use, be convenient to control appliance and develop to miniaturization integrated direction.
In addition, contact pedestal of the present invention has splicing front and the splicing back side, and splicing is positive has respectively the corresponding anti-sand structure arranging with the splicing back side.In use, contact pedestal can carry out multiple-layer stacked according to the number of control circuit, has not only simplified mounting means, also helps the replacing that damages pedestal.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of contact pedestal of the present invention.
Fig. 2 is the backsight structural representation of contact pedestal of the present invention.
Fig. 3 be Fig. 1 A-A to sectional structure schematic diagram.
Fig. 4 is the left TV structure schematic diagram of contact pedestal of the present invention.
Fig. 5 is contact pedestal of the present invention and accessory assembly application schematic diagram.
Fig. 6 is contact pedestal inner slide of the present invention and contact bridge assembly application schematic diagram.
Fig. 7 is contact pedestal and Miniature universal change over switch assembly application schematic diagram in Miniature universal change over switch of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the contact pedestal the present invention relates to is described in detail.
Embodiment
Contact pedestal 17 is rectangle, and each angle of rectangle is that 45 degree unload chamfering, and this contact pedestal 17 has splicing positive 27 and the splicing back side 28.
Fig. 1 is the main TV structure schematic diagram of contact pedestal of the present invention.
As shown in Figure 1, the central part of splicing positive 27 has center through hole 1, center through hole 1 each side have a front chute 2, respectively there is a manhole 7 both sides in addition.Article two, the line at front chute 2 centers is vertical with the line in two manhole 7 centers of circle.Between front chute 2 and each manhole 7, all have a protection walls 25, dustproof protruding wall 3 is arranged at the top of protection walls 25.Every protection walls 25 has two breach 5, and these two breach 5 are arranged axisymmetricly in the line both sides in two manhole 7 centers of circle, and breach 5 is for placing contact chip 18.Each breach 5 is interior all a small-sized step 4, and this small-sized step 4 contacts with the lower end of contact chip 18 middle parts, plays the effect of fixed contact piece 18.Between each breach 5 and dustproof wall 30, have front holddown groove 6, front holddown groove 6 is positioned at center line take front chute 2 on the line of two breach 5 of symmetry axis.Front holddown groove 6 is used for the elevated regions of end one side of chimeric contact chip 18, plays the effect of fixed contact piece 18.Two ends of every protection walls 25 all have a dustproof boss seat 10.
Manhole 7 is used for installing fastening screw, and respectively there is a dustproof wall 30 both sides of manhole 7, and dustproof protruding wall 9 is arranged at the top of dustproof wall 30.Manhole 7 has two reinforcements 31 to be connected with protection walls 25, plays the effect of reinforcing contact pedestal 17.Positioning boss 8 is arranged at the top of manhole 7, for playing the effect of location when multiple contact pedestal 17 stack combinations.
Fig. 2 is the backsight structural representation of contact pedestal of the present invention.
As shown in Figure 2, the central part at the splicing back side 28 has center through hole 1, center through hole 1 each side have a back side chute 16, respectively there is a circular counter bore 15 both sides in addition.Back side chute 16 is corresponding in the position of splicing positive 27 with front chute 2 in the position at the splicing back side 28.Respectively there is a middle dustproof groove 12 both sides of back side chute 16, and middle dustproof groove 12 is corresponding in the position of splicing positive 27 with protection walls 25 in the position at the splicing back side 28.Protection walls 25 on the splicing front 27 of one joint contact pedestal 17 and the dustproof protruding wall 3 that is positioned at protection walls 25 tops can match with another middle dustproof groove 12 saving on the splicing back side 28 of contact pedestal 17; to realize the stack of two joint contact pedestals 17, and stop the grains of sand or dust to enter the stack face of two joint contact pedestals 17 simultaneously.Splicing has four back side holddown grooves 13 on the back side 28, and this back side holddown groove 13 is corresponding in the position of splicing positive 27 with front holddown groove 6 in the position at the splicing back side 28.Back side holddown groove 13 is used for the elevated regions of end opposite side of chimeric contact chip 18, plays the effect of fixed contact piece 18.
Fig. 3 be Fig. 1 A-A to sectional structure schematic diagram.
Fig. 4 is the left TV structure schematic diagram of contact pedestal of the present invention.
As shown in Figure 3,4, the splicing back side 28 each side have a dustproof boss 11, dustproof boss 11 is corresponding in the position of splicing positive 27 with dustproof boss seat 10 in the position at the splicing back side 28.On the splicing front 27 of one joint contact pedestal 17, all dustproof boss seat 10 all can save contact pedestal 17 with another and splices dustproof boss 11 all on the back side 28 and match; to realize the stack of two joint contact pedestals 17, and stop the grains of sand or dust to enter the stack face of two joint contact pedestals 17 simultaneously.
Respectively there is an end dustproof groove 14 both sides of the circular counter bore 15 at the splicing back side 28, and end dustproof groove 14 is corresponding in the position of splicing positive 27 with dustproof wall 30 in the position at the splicing back side 28.Dustproof wall 30 on the splicing front 27 of one joint contact pedestal 17 and the dustproof boss 9 that is positioned at its top can match with another 28Shang end, splicing back side dustproof groove 14 that saves contact pedestal 17; to realize the stack of two joint contact pedestals 17, and stop the grains of sand or dust to enter the stack face of two joint contact pedestals 17 simultaneously.
The accessory of contact pedestal 17 has cam 23, rotating shaft 32, contact bridge 20, slide block 21, spring 22 and screw assemblies 33.
Fig. 5 is contact pedestal of the present invention and accessory assembly application schematic diagram.
Fig. 6 is contact pedestal inner slide of the present invention and contact bridge assembly application schematic diagram.
The installation method of contact pedestal 17 and accessory as shown in Figure 5,6.When installation, two cam 23 subtends are placed in center through hole 1, and the curved surface angle of two cams 23 is 180 °, and rotating shaft 32 is inserted in the location hole of cam 23.Rotating shaft 32 runs through two cams 23 and center through hole 1 successively, and adjacent two joint contact pedestals 17 complete assembly are linked together.Cam 23 is fixed in rotating shaft 32 by location hole, can rotate together with rotating shaft 32.Contact bridge 20 is placed in the contact bridge location notch 34 of slide block 21 1 sides, and then contact bridge 20, slide block 21 are placed in front chute 2 as a whole.The arc end of each slide block 21 embeds respectively in the curved surface of cam 23.
All there is grab 26 two ends of spring base 19, and central region has the boss not showing in a figure.Wherein, grab 26 matches with the buckle 35 of contact pedestal 17, for spring base 19 is fixed to contact pedestal 17.One end of spring 22 contacts with contact bridge 20, and the other end is enclosed within on the boss of spring base 19.The elastic force of spring 22 can guarantee that contact bridge 20 is tightly close to slide block 21, and the arc end of slide block 21 is tightly close to the curved surface of cam 23, and the grab 26 that can also guarantee spring base 19 closely agrees with the buckle 35 of contact pedestal 17 and be not easily separated.
The middle part that is screwed with the contact chip 18 of screw assemblies 33 embeds in the breach 5 of protection walls 25, and the lower end at contact chip 18 middle parts contacts with the small-sized step 4 in breach 5, in embedding front, the lower end holddown groove 6 of contact chip 18 ends.Small-sized step 4 and front holddown groove 6 play the effect of fixed contact piece 18.
In the time that splicing positive 27 superposes with the splicing back side 28, the positioning boss 8 of splicing positive 27 stretches in the circular counter bore 15 at the splicing back side 28.Hexagon-headed bolt 36 runs through positioning boss 8, circular counter bore 15 and is positioned at the middle manhole 7 of circular counter bore 15, multi-layer spliced positive 27 is installed to coordinate with the splicing back side 28 tighten together.
Fig. 7 is contact pedestal and Miniature universal change over switch assembly application schematic diagram in Miniature universal change over switch of the present invention.
The contact pedestal 17 that installs accessory is applied as shown in Figure 7 with the assembly of Miniature universal change over switch.First align member 24 is arranged on to the front portion of Miniature universal change over switch.Because the back side of align member 24 is just the same with the structure at the splicing back side 28 of contact pedestal 17, thus the splicing front 27 of a joint contact pedestal 17 can be stitched together with the back side of align member 24, and then splice successively another joint contact pedestal 17.The joint number of selecting the contact pedestal 17 that will superpose according to the number of control circuit, the present embodiment selective stacking three saves contact pedestal 17.When three joint contact pedestals 17 superpose complete after, the new contact pedestal 17 that no longer superposes, and in the end a joint is loaded onto protection base plate on contact pedestal 17, and the nut 37 of screwing on the hexagon-headed bolt 36 exposing is fastening.
The operation principle of contact pedestal 17 of the present invention is as described below:
In the time of contact pedestal 17 normal work, rotating shaft 32 is with moving cam 23 left or is turned right.Due to the effect of spring 22 elastic force, in the time that cam 23 rotates, the arc end of slide block 21 contacts with the curved surface of cam 23 all the time.Along with slide block 21 is with the continuous variation of cam 23 contact-making surfaces, slide block 21 is just done straight reciprocating motion under the effect of spring 22 elastic force in the cavity that front chute 2 and back side chute 16 are built up, and drives the contact bridge 20 being fixed on slide block 21 to move reciprocatingly together simultaneously.When slide block 21 is during to cam 23 1 lateral movement, contact bridge 20 contacts with contact chip 18, and circuit is connected.When slide block 21 is during to spring base 19 1 lateral movement, contact bridge 20 is lost and contact with contact chip 18, circuit disconnection.Control whether contacting of contact bridge 20 and contact chip 18 by the reciprocating motion of slide block 21, thereby realize the control requirement of electric power system break-make.
In the time working in compared with overall situation at sand and dust or the operating time is long, if there is no anti-dust measure, Miniature universal change over switch is just easily out of order.If the curved surface of cam 23 is stained with sand and dust, can increase the contact friction between cam 23 and slide block 21, increase the rotational resistance of cam 23, even can cause cam 23 and slide block 21 mutually stuck, cannot rotate, thereby make switch failure; If have sand and dust in front chute 2 or back side chute 16, the resistance of slide block 21 in reciprocating motion process can rise, and even can cause contact bridge 20 and contact chip 18 to contact and maybe cannot lose contact, affects the break-make of circuit; If have sand and dust on the contact-making surface of contact bridge 20 and contact chip 18, easily cause loose contact maybe cannot contact.These factors all can affect the normal use of Miniature universal change over switch.
The anti-dust principle of contact pedestal 17 of the present invention is as described below:
The embodiment of the present invention is provided with outer ring protection in the inside of contact pedestal 17 and inner ring protects double-deck anti-sand structure, can prevent that sand and dust from entering Miniature universal change over switch inside.
In the time that splicing positive 27 is superimposed with each other with the splicing back side 28, the protection walls 25 of splicing positive 27 and dustproof protruding wall 3 embed in the middle dustproof groove 12 at the splicing back side 28, thereby prevent that in the inner side of contact pedestal 17B-B superposed surfaces sand and dust from entering.The dustproof wall 30 of splicing positive 27 and dustproof protruding wall 9 embed in the end dustproof groove 14 at the splicing back side 28, thereby prevent that in the outside of contact pedestal 17B-B superposed surfaces sand and dust from entering.Meanwhile, the dustproof boss 11 at the splicing back side 28 embeds in the dustproof boss seat 10 of protection walls 25 ends of splicing positive 27, thereby prevents that in the inner side of contact pedestal 17A-A superposed surfaces sand and dust from entering.Under the elastic force effect of spring 22, the grab 26 of spring base 19 is combined closely with the buckle 35 of protection walls 25, thereby prevents that in the outside of contact pedestal 17A-A superposed surfaces sand and dust from entering.
After contact pedestal 17 is arranged in Miniature universal change over switch, because the front portion of Miniature universal change over switch is provided with align member 24, the back side of align member 24 is just the same with the structure at the splicing back side 28 of contact pedestal 17, so can guarantee that the joint contact pedestal 17 coordinating with positioning component 24 also has anti-dust function.Because the superposed surfaces of every two joint contact pedestals 17 all has identical anti-sand structure, therefore whole Miniature universal change over switch all has anti-dust function.Like this, even if a joint or several sections of contact pedestal 17 deform, the anti-dust function of the contact pedestal 17 of other joint is not also affected.
The effect of embodiment and effect
In the present embodiment, in the time that splicing is positive and the splicing back side superposes, dustproof wall and be positioned at the dustproof protruding wall at its top and end dustproof groove, grab and buckle can form outer guard ring after chimeric mutually respectively, protection walls and be positioned at its top dustproof protruding wall and middle dustproof groove, prevent dust boss and dustproof boss seat are mutual respectively can form internal layer guard ring after chimeric.Because contact pedestal has this two-layer anti-sand structure, so can reach the effect that can anti-dustly not increase again installing space and change mounting means.
Claims (9)
1. contact pedestal (17), it is characterized in that: the profile of described contact pedestal (17) is rectangle, each angle is that 45 degree unload chamfering, there is splicing positive (27) and the splicing back side (28), wherein, the central part of described splicing positive (27) has center through hole (1), described center through hole (1) each side have a front chute (2), respectively there is a manhole (7) both sides in addition, between described front chute (2) and each described manhole (7), all there is a protection walls (25), respectively there is a dustproof wall (30) both sides of described manhole (7), the described splicing back side (28) has described center through hole (1), circular counter bore (15), back side chute (16), middle dustproof groove (12) and end dustproof groove (14), described circular counter bore (15) is corresponding in the position of described splicing positive (27) with described manhole (7) in the position at the described splicing back side (28), described back side chute (16) is corresponding in the position of described splicing positive (27) with described front chute (2) in the position at the described splicing back side (28), in the middle of described, dustproof groove (12) is corresponding in the position of described splicing positive (27) with described protection walls (25) in the position at the described splicing back side (28), described end dustproof groove (14) is corresponding in the position of described splicing positive (27) with described dustproof wall (30) in the position at the described splicing back side (28), positioning boss (8) is arranged at the top of described manhole (7).
2. contact pedestal according to claim 1 (17), is characterized in that: each end of described protection walls (25) all has a dustproof boss seat (10).
3. contact pedestal according to claim 1 and 2 (17), it is characterized in that: the described splicing back side (28) each side have a dustproof boss (11), described dustproof boss (11) is corresponding in the position of described splicing positive (27) with described dustproof boss seat (10) in the position at the described splicing back side (28).
4. contact pedestal according to claim 1 (17), is characterized in that: dustproof protruding wall (3) is arranged at the top of described protection walls (25).
5. contact pedestal according to claim 1 (17), is characterized in that: dustproof protruding wall (9) is arranged at the top of described dustproof wall (30).
6. contact pedestal according to claim 1 (17), is characterized in that: described protection walls (25) has even number breach (5), all has a small-sized step (4) in each described breach (5).
7. according to the contact pedestal described in claim 1 or 6 (17), it is characterized in that: between each described breach (5) and described dustproof wall (30), have front holddown groove (6).
8. according to the contact pedestal described in claim 1 or 6 (17), it is characterized in that: on the described splicing back side (28), have even number back side holddown groove (13), the position of described back side holddown groove (13) on the described splicing back side (28) is corresponding in the position of described splicing positive (27) with described front holddown groove (6).
9. contact pedestal according to claim 1 (17), is characterized in that: each end of described protection walls (25) all has a buckle (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310005651.5A CN103915265B (en) | 2013-01-08 | 2013-01-08 | Contact pedestal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310005651.5A CN103915265B (en) | 2013-01-08 | 2013-01-08 | Contact pedestal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103915265A true CN103915265A (en) | 2014-07-09 |
| CN103915265B CN103915265B (en) | 2016-09-14 |
Family
ID=51040869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310005651.5A Expired - Fee Related CN103915265B (en) | 2013-01-08 | 2013-01-08 | Contact pedestal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103915265B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB633808A (en) * | 1947-12-15 | 1949-12-30 | Craig & Derricott Ltd | Improvements relating to rotary electric switches |
| CN2796061Y (en) * | 2005-04-11 | 2006-07-12 | 上海伊莱克斯实业有限公司 | Dust-proof universal conversion switch |
| JP2007149428A (en) * | 2005-11-25 | 2007-06-14 | Alps Electric Co Ltd | Rotary switch |
-
2013
- 2013-01-08 CN CN201310005651.5A patent/CN103915265B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB633808A (en) * | 1947-12-15 | 1949-12-30 | Craig & Derricott Ltd | Improvements relating to rotary electric switches |
| CN2796061Y (en) * | 2005-04-11 | 2006-07-12 | 上海伊莱克斯实业有限公司 | Dust-proof universal conversion switch |
| JP2007149428A (en) * | 2005-11-25 | 2007-06-14 | Alps Electric Co Ltd | Rotary switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103915265B (en) | 2016-09-14 |
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Granted publication date: 20160914 |
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| CF01 | Termination of patent right due to non-payment of annual fee |