CN102637537A - Bridge contact for drawout switching devices - Google Patents
Bridge contact for drawout switching devices Download PDFInfo
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- CN102637537A CN102637537A CN201210116827XA CN201210116827A CN102637537A CN 102637537 A CN102637537 A CN 102637537A CN 201210116827X A CN201210116827X A CN 201210116827XA CN 201210116827 A CN201210116827 A CN 201210116827A CN 102637537 A CN102637537 A CN 102637537A
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- bearing pin
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Abstract
The invention relates to a bridge contact for drawout switching devices, and the bridge contact comprises a contact support, a first contact assembly, a second contact assembly, an elastic element and a compression structure, wherein the first contact assembly and the second contact assembly are symmetrically arranged on the upside and downside of the contact support, the elastic element is arranged between the first contact assembly and the second contact assembly, the compression structure is used for compressing the first contact assembly and the second contact assembly, and the elastic element is in a tensile state, and compresses the first contact assembly and the second contact assembly on the contact support through the compression structure. Because the first contact assembly and the second contact assembly respectively can swing around the upside and downside of a baffle, and can clamp or loosen a copper bar in a drawer seat of a drawout switching device under the action of the elastic restoring force of the elastic element so as to complete the installation and removal of the contact, therefore, the bridge contact has the advantages of convenience in assembly and simple structure.
Description
Technical field
The present invention relates to a kind of draw out switchgear electrical equipment, more particularly, relate to a kind of draw out switchgear electrical equipment and use the bridge type contact.
Background technology
The draw out switchgear of prior art is used the bridge type contact, does not also see the modularized design that can independently install that this structure or similar this structure are arranged.Version is different; Version is similar but because there is defective in structure; Need after a busbar connects earlier, be installed on the underframe again; So need with busbar together from the same direction underframe of packing into, too, receive a lot of restrictions and inconvenience very in the use when needing dismounting.When mounted; The relevant position that needs successively support and contact assembly with contact to be installed to draw out switchgear; And can not be with the direct integral installation of contact to draw out switchgear; Therefore when contact goes wrong, also can only take draw out switchgear earlier apart, and then the various piece of contact pulled down change.
Summary of the invention
The technical problem that the present invention will solve is, to the above-mentioned defective of prior art, provides a kind of draw out switchgear electrical equipment to use the bridge type contact.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of draw out switchgear electrical equipment and use the bridge type contact; Comprise contact supporting, be symmetricly set on said contact supporting up and down first contact assembly and second contact assembly, the compressing structure that is arranged on the flexible member between said first contact assembly and second contact assembly and is used to compress said first contact assembly and second contact assembly of both sides; Said flexible member is in extended state, and through said compressing structure said first contact assembly and second contact assembly is pressed on the said contact supporting;
Said contact supporting comprises left socle, right support and is arranged on the baffle plate between said left socle and the right support; Said first contact assembly and said second contact assembly are all between said left socle and right support; One end of said first contact assembly and second contact assembly is movably connected in respectively between said left socle and the right support; The other end respectively with the both sides up and down of said baffle plate overlap joint, thereby make said first contact assembly can be connected with said contact supporting around said baffle plate respectively with said second contact assembly with rolling to each side up and down.
Draw out switchgear electrical equipment of the present invention is used the bridge type contact; Wherein, Said compressing structure comprises first bearing pin that is arranged on the said first contact assembly top side and second bearing pin that is arranged on the said second contact assembly bottom side; Said flexible member one end and said first bearing pin are fixed, and the other end and said second bearing pin are fixed; Said first bearing pin and second bearing pin are pressed on said first contact assembly and second contact assembly on the said contact supporting under the elastic-restoring force effect of said flexible member.
Draw out switchgear electrical equipment of the present invention is used the bridge type contact, and wherein, the top side of said first contact assembly is provided with first mounting groove, and the bottom side of said second contact assembly is provided with second mounting groove; Said first bearing pin is positioned at said first mounting groove, and said second bearing pin is positioned at said second mounting groove.
Draw out switchgear electrical equipment of the present invention is used the bridge type contact, and wherein, said left socle is respectively equipped with first breach with right support upside and corresponding position, the said first mounting groove two ends; Said left socle is respectively equipped with second breach with right support downside and corresponding position, the said second mounting groove two ends.
Draw out switchgear electrical equipment of the present invention is used the bridge type contact, and wherein, an end of said first contact assembly is provided with first installing hole, and an end of said second contact assembly is provided with second installing hole; Said first contact assembly is movably arranged between said left socle and the right support through the 3rd bearing pin that passes said first installing hole and two ends and be connected with said left socle and right support respectively, and said second contact assembly is movably arranged between said left socle and the right support through the 4th bearing pin that passes said second installing hole and two ends and be connected with said left socle and right support respectively.
Draw out switchgear electrical equipment of the present invention is used the bridge type contact, and wherein, said first installing hole and second installing hole are mounting hole.
Draw out switchgear electrical equipment of the present invention is used the bridge type contact, and wherein, the correspondence position of said left socle and right support upside one end is respectively equipped with the 3rd breach, and the correspondence position of downside one end is respectively equipped with the 4th breach; The two ends of said the 3rd bearing pin are positioned respectively on two said the 3rd breach through location structure, and the two ends of said the 4th bearing pin are positioned at respectively on two said the 4th breach through location structure.
Draw out switchgear electrical equipment of the present invention is used the bridge type contact, and wherein, said location structure comprises the step surface of being located at said the 3rd bearing pin or the 4th bearing pin two ends.
Draw out switchgear electrical equipment of the present invention is used the bridge type contact, and wherein, the correspondence position of said first contact assembly bottom side and said baffle plate overlap joint is provided with first draw-in groove, and the correspondence position of said second contact assembly top side and said baffle plate overlap joint is provided with second draw-in groove.
Draw out switchgear electrical equipment of the present invention is used the bridge type contact, and wherein, said first contact assembly comprises first contact blade that polylith is arranged side by side, and said second contact assembly comprises second contact blade that polylith is arranged side by side.
The draw out switchgear electrical equipment of embodiment of the present invention is used the bridge type contact; First contact assembly and second contact assembly have following beneficial effect: owing to can be rolled to each side up and down around baffle plate respectively; And the effect of elastic-restoring force that can be through flexible member clamps or unclamps the bronze medal in the draw out switchgear electrical equipment drawout chassis; To accomplish the installation and removal of contact, therefore have easy to assembly, advantage of simple structure.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the structural representation of a kind of draw out switchgear electrical equipment of the present invention with bridge type contact preferred embodiment;
Fig. 2 is the profile of a kind of draw out switchgear electrical equipment of the present invention with bridge type contact preferred embodiment;
Fig. 3 is the structural representation of a kind of draw out switchgear electrical equipment of the present invention with contact supporting in the bridge type contact preferred embodiment;
Fig. 4 is the structural representation of a kind of draw out switchgear electrical equipment of the present invention with the 3rd bearing pin or the 4th bearing pin in the bridge type contact preferred embodiment;
Fig. 5 is the structural representation of a kind of draw out switchgear electrical equipment of the present invention with first contact blade in the bridge type contact preferred embodiment;
Fig. 6 is the structural representation of a kind of draw out switchgear electrical equipment of the present invention with second contact blade in the bridge type contact preferred embodiment.
Embodiment
Shown in Fig. 1-2; In a preferred embodiment of the invention, this draw out switchgear electrical equipment with the bridge type contact comprise contact supporting 100, be symmetricly set on first contact assembly 200 and second contact assembly 300 of contact supporting both sides about in the of 100, the compressing structure that is arranged on the flexible member 400 between first contact assembly 200 and second contact assembly 300 and is used to compress first contact assembly 200 and second contact assembly 300.Flexible member 400 is in extended state always, and its elastic-restoring force can be pressed on first contact assembly 200 and second contact assembly 300 on the contact supporting 100 through compressing structure.Contact supporting 100 comprise left socle 101, right support 102 and be arranged on left socle 101 and right support 102 between baffle plate 103.It should be noted that; Baffle plate 103 can be through dismountable mode (for example; Hinged, be spirally connected) be connected with right support 102 with left socle 101; Also can be one-body molded with left socle 101 and right support 102, the connected mode of baffle plate 103 and left socle 101 and right support 102 does not influence the enforcement of present embodiment.First contact assembly 200 and second contact assembly 300 are all between left socle 101 and right support 102; And an end of first contact assembly 200 and second contact assembly 300 is movably connected in respectively between left socle 101 and the right support 102; The other end respectively with the both sides up and down of baffle plate 103 overlap joint, thereby the contact assembly 200 of winning can be connected with contact supporting 100 around baffle plate 103 respectively with second contact assembly 300 with rolling to each side up and down.
The view direction that shows with Fig. 2 is as the criterion; When concrete the installation; The inner copper bar of drawout chassis is inserted in the space of first contact assembly 200 and the formation of second contact assembly, 300 left ends; And under the elastic force effect of flexible member 400, the left end of first contact assembly 200 and second contact assembly 300 copper bar that drawout chassis is inner clamps, and the copper bar in the Switch main body is inserted in the space of first contact assembly 200 and the formation of second contact assembly, 300 right-hand members.During use; Switch main body is towards the direction motion of drawout chassis; Copper bar in it inserts the right-hand member of contact, accomplishes being electrically connected between Switch main body and the drawout chassis, and Switch main body is towards the direction motion of principle drawout chassis; Bronze medal in it is deviate from the right-hand member of contact, being electrically connected between cut-off switch body and the drawout chassis.When needs are changed contact; Only need apply the power that makes first contact assembly 200 and the 300 right-hand member relative motions of second contact assembly at the right-hand member of contact, the distance that increases first contact assembly 200 and second contact assembly, 300 left ends simultaneously can unload contact from the drawout chassis copper bar.Hence one can see that; Draw out switchgear of the present invention is all very convenient with the contact installation and removal; Also can know simultaneously,, just can not accomplish the installation and removal of contact if first contact assembly 200 and second contact assembly 300 do not possess the amplitude around baffle plate 103 upsides or following side oscillation.
Preferably, above-mentioned compressing structure comprises first bearing pin 202 that is arranged on first contact assembly, 200 top sides and second bearing pin 302 that is arranged on second contact assembly, 300 bottom sides.Flexible member 400 1 ends and first bearing pin 202 are fixing, and the other end and second bearing pin 302 are fixing.First bearing pin 202, second bearing pin 302 are pressed on first contact assembly 200 and second contact assembly 300 on the contact supporting 100 under the elastic-restoring force effect of flexible member 400.Specifically; The two ends of flexible member 400 are respectively equipped with the shape portion (as shown in Figure 2) of colluding; Two hook parts do not collude on first bearing pin 202 and second bearing pin 302, and the existence of first bearing pin 202 and second bearing pin 302 can make things convenient for flexible member 400 to utilize the elastic-restoring force of self that first contact assembly 200 and second contact assembly 300 are pressed on the contact supporting 100.In addition, the top side of first contact assembly 200 is provided with first mounting groove, 201, the second contact assemblies, 300 bottom sides and is provided with second mounting groove, 301, the first bearing pins 202 and is located in first mounting groove 201, and second bearing pin 302 is located in second mounting groove 301.The shape of first mounting groove 201 and second mounting groove 301 is complementary with the shape of first bearing pin 202 and second bearing pin 302 respectively, therefore can make things convenient for the installation and the location of first bearing pin 202 and second bearing pin 302.
Preferably, left socle 101 is respectively equipped with first breach 104 with right support 102 upsides and corresponding position, first mounting groove, 201 two ends, and left socle 101 is respectively equipped with second breach 105 with right support 102 downsides and corresponding position, second mounting groove, 301 two ends.First breach 104 and second breach 105 can further facilitate the assembling of first bearing pin 202 and second bearing pin 302.
Preferably; First contact assembly 200 and second contact assembly 300 can be movably arranged between left socle 101 and the right support 102 through following mode: the end that an end of first contact assembly 200 is provided with first installing hole, 203, the second contact assemblies 300 is provided with second installing hole 303.First contact assembly 200 is movably arranged between left socle 101 and the right support 102 through the 3rd bearing pin 204 that passes first installing hole 203 and two ends and be connected with left socle 101 and right support 102 respectively; Likewise, second contact assembly 300 is movably arranged between left socle 101 and the right support 102 through the 4th bearing pin 304 that passes second installing hole 303 and two ends and be connected with left socle 101 and right support 102 respectively.Size that it should be noted that first installing hole 203 and second installing hole 303 should make an end of the win contact assembly 200 and second contact assembly 300 have certain movable amplitude respectively greater than the diameter of the 3rd bearing pin 204 and the 4th bearing pin 304.And the mode through bearing pin is movably arranged on the structure that can simplify contact between left socle 101 and the right support 102 with an end of first contact assembly 200 and second contact assembly 300 respectively, can make things convenient for the assembling of contact simultaneously again.In a preferred embodiment of the invention; First installing hole 203 and second installing hole 303 are mounting hole, and as can beappreciated from fig. 2, the axis of the long axis ray of mounting hole and flexible member 400 is an acute angle angle; In brief; Mounting hole is obliquely installed on contact assembly, mounting hole when first contact assembly 200 or second contact assembly 300 around the upside of baffle plate 103 or down during side oscillation, certain swing surplus can be provided; And understandable, this swing surplus is decided by the size of mounting hole.
Secondly, left socle 101 is respectively equipped with the 3rd breach 106 with the correspondence position of right support 102 upsides one end, and the correspondence position of downside one end is respectively equipped with the 4th breach 107; The two ends of the 3rd bearing pin 204 are positioned respectively on two the 3rd breach 106 through location structure, and the two ends of the 4th bearing pin 304 are positioned at respectively on two the 4th breach 107 through location structure.Likewise, the 3rd breach 106 and the 4th breach 107 also can make things convenient for the assembling of the 3rd bearing pin 204 and the 4th bearing pin 304.
Preferably, above-mentioned location structure can adopt the step surface 500 that is arranged on the 3rd bearing pin 204 or the 4th bearing pin 304 two ends.Step surface 500 can prevent that the 3rd bearing pin 204 and the 4th bearing pin 304 from producing axial motion.Further, the correspondence position of first contact assembly, 200 bottom sides and baffle plate 103 overlap joints is provided with first draw-in groove 205, the second contact assemblies, 300 top sides and is provided with second draw-in groove 305 with the correspondence position that baffle plate 103 overlaps.The other end of first contact assembly 200 and second contact assembly 300 promptly overlaps respectively through the both sides up and down of this structure and baffle plate 103.
In each preferred embodiment of the present invention, first contact assembly 200 comprises that first contact blade, 206, the second contact assemblies 300 that polylith is arranged side by side comprise second contact blade 306 that polylith is arranged side by side, and flexible member 400 employings is extension spring.And from Fig. 5-6, can see; First contact blade 206 is provided with groove 206 near the position at middle part; This groove 206 is used for that is to say through flexible member 400, in four first contact blades 206 that first contact assembly 200 comprises; Two first contact blades 206 that are in contact with one another all offer such one and are used for having constituted a space that is used for through flexible member 400 through 206, two grooves 206 of groove of flexible member 400 on its contact-making surface.In like manner; In four second contact blades 307 that second contact assembly 300 comprises; Two second contact blades 307 that are in contact with one another all offer such one and are used for having constituted a space that is used for through flexible member 400 through 307, two grooves 307 of groove of flexible member 400 on its contact-making surface.Secondly; From Fig. 3, can also see; On left socle 101, right support 102 and baffle plate 103, also offer square hole (not illustrating among the figure) respectively with label; These three square holes can alleviate between the contact 100 weight on the whole, and can improve the heat-sinking capability of contact supporting 100, also can make things convenient for the staff to observe the working condition of extension spring simultaneously.
Above embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement in view of the above, can not limit protection scope of the present invention.All equalizations of being done with claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.
Claims (10)
1. a draw out switchgear electrical equipment is used the bridge type contact; It is characterized in that; Comprise contact supporting (100), be symmetricly set on said contact supporting (100) first contact assembly (200) and second contact assembly (300), the compressing structure that is arranged on the flexible member (400) between said first contact assembly (200) and second contact assembly (300) and is used to compress said first contact assembly (200) and second contact assembly (300) of both sides up and down; Said flexible member (400) is in extended state, and through said compressing structure said first contact assembly (200) and second contact assembly (300) is pressed on the said contact supporting (100);
Said contact supporting (100) comprise left socle (101), right support (102) and be arranged on said left socle (101) and right support (102) between baffle plate (103); Said first contact assembly (200) and said second contact assembly (300) all are positioned between said left socle (101) and the right support (103); One end of said first contact assembly (200) and second contact assembly (300) is movably connected in respectively between said left socle and the right support; The other end respectively with the both sides up and down of said baffle plate overlap joint, thereby make said first contact assembly (200) distinguish and can be connected with said contact supporting (100) with rolling to each side up and down around said baffle plate (103) with said second contact assembly (300).
2. draw out switchgear electrical equipment according to claim 1 is used the bridge type contact; It is characterized in that; Said compressing structure comprises first bearing pin (202) that is arranged on said first contact assembly (200) top side and second bearing pin (302) that is arranged on said second contact assembly (300) bottom side; Said flexible member (400) one ends and said first bearing pin (202) are fixing, and the other end and said second bearing pin (302) are fixing; Said first bearing pin (202) and second bearing pin (302) are pressed on said first contact assembly (200) and second contact assembly (300) on the said contact supporting (100) under the elastic-restoring force effect of said flexible member (400).
3. draw out switchgear electrical equipment according to claim 2 is used the bridge type contact, it is characterized in that, the top side of said first contact assembly (200) is provided with first mounting groove (201), and the bottom side of said second contact assembly (300) is provided with second mounting groove (301); Said first bearing pin (202) is positioned at said first mounting groove (201), and said second bearing pin (302) is positioned at said second mounting groove (301).
4. draw out switchgear electrical equipment according to claim 3 is used the bridge type contact, it is characterized in that, said left socle (101) is respectively equipped with first breach (104) with right support (102) upside and corresponding position, said first mounting groove (201) two ends; Said left socle (101) is respectively equipped with second breach (105) with right support (102) downside and corresponding position, said second mounting groove (301) two ends.
5. draw out switchgear electrical equipment according to claim 1 is used the bridge type contact, it is characterized in that, an end of said first contact assembly (200) is provided with first installing hole (203), and an end of said second contact assembly (300) is provided with second installing hole (303); Said first contact assembly (200) is movably arranged between said left socle (101) and the right support (102) through the 3rd bearing pin (204) that passes said first installing hole (203) and two ends and be connected with said left socle (101) and right support (102) respectively, and said second contact assembly (300) is movably arranged between said left socle (101) and the right support (102) through the 4th bearing pin (304) that passes said second installing hole (303) and two ends and be connected with said left socle (101) and right support (102) respectively.
6. use the bridge type contact according to claim 5 described draw out switchgear electrical equipment, it is characterized in that, said first installing hole (203) is mounting hole with second installing hole (303).
7. draw out switchgear electrical equipment according to claim 5 is used the bridge type contact; It is characterized in that; Said left socle (101) is respectively equipped with the 3rd breach (106) with the correspondence position of right support (102) upside one end, and the correspondence position of downside one end is respectively equipped with the 4th breach (107); The two ends of said the 3rd bearing pin (204) are positioned respectively on two said the 3rd breach (106) through location structure, and the two ends of said the 4th bearing pin (304) are positioned at respectively on two said the 4th breach (107) through location structure.
8. draw out switchgear electrical equipment according to claim 7 is used the bridge type contact, it is characterized in that, said location structure comprises the step surface (500) of being located at said the 3rd bearing pin (204) or the 4th bearing pin (304) two ends.
9. draw out switchgear electrical equipment according to claim 1 is used the bridge type contact; It is characterized in that; The correspondence position of said first contact assembly (200) bottom side and said baffle plate (103) overlap joint is provided with first draw-in groove (205), and the correspondence position of said second contact assembly (300) top side and said baffle plate (103) overlap joint is provided with second draw-in groove (305).
10. use the bridge type contact according to each described draw out switchgear electrical equipment of claim 1-9; It is characterized in that; Said first contact assembly (200) comprises first contact blade (206) that polylith is oppositely arranged side by side, and said second contact assembly (300) comprises second contact blade (306) that polylith is oppositely arranged side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210116827.XA CN102637537B (en) | 2012-04-19 | 2012-04-19 | Bridge contact for drawout switching devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210116827.XA CN102637537B (en) | 2012-04-19 | 2012-04-19 | Bridge contact for drawout switching devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102637537A true CN102637537A (en) | 2012-08-15 |
| CN102637537B CN102637537B (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210116827.XA Active CN102637537B (en) | 2012-04-19 | 2012-04-19 | Bridge contact for drawout switching devices |
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| Country | Link |
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| CN (1) | CN102637537B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762040A (en) * | 2016-05-04 | 2016-07-13 | 德力西电气有限公司 | Bridge-shaped contact for circuit breaker and frame circuit breaker with bridge-shaped contact |
| CN106710976A (en) * | 2015-11-12 | 2017-05-24 | 上海良信电器股份有限公司 | Drawer type circuit breaker busbar electrical connection structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006094605A (en) * | 2004-09-22 | 2006-04-06 | Terasaki Electric Co Ltd | Contactor device |
| CN201298685Y (en) * | 2008-11-05 | 2009-08-26 | 江苏凯隆电器有限公司 | Busbar system of drawer-type circuit breaker |
| CN201465933U (en) * | 2009-05-15 | 2010-05-12 | 上海精益电器厂有限公司 | Bridge-shaped contact of universal circuit breaker |
| CN202564066U (en) * | 2012-04-19 | 2012-11-28 | 贵州长征开关制造有限公司 | Bridge type contact for draw-out switching electric apparatus |
-
2012
- 2012-04-19 CN CN201210116827.XA patent/CN102637537B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006094605A (en) * | 2004-09-22 | 2006-04-06 | Terasaki Electric Co Ltd | Contactor device |
| CN201298685Y (en) * | 2008-11-05 | 2009-08-26 | 江苏凯隆电器有限公司 | Busbar system of drawer-type circuit breaker |
| CN201465933U (en) * | 2009-05-15 | 2010-05-12 | 上海精益电器厂有限公司 | Bridge-shaped contact of universal circuit breaker |
| CN202564066U (en) * | 2012-04-19 | 2012-11-28 | 贵州长征开关制造有限公司 | Bridge type contact for draw-out switching electric apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710976A (en) * | 2015-11-12 | 2017-05-24 | 上海良信电器股份有限公司 | Drawer type circuit breaker busbar electrical connection structure |
| CN105762040A (en) * | 2016-05-04 | 2016-07-13 | 德力西电气有限公司 | Bridge-shaped contact for circuit breaker and frame circuit breaker with bridge-shaped contact |
| CN105762040B (en) * | 2016-05-04 | 2018-10-16 | 德力西电气有限公司 | Bridge-type contact for circuit breaker and frame circuit breaker containing the contact |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102637537B (en) | 2015-06-03 |
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Address after: The middle section of Wuhan road Huichuan District Waigaoqiao Industrial Park 563002 Guizhou city of Zunyi Province Patentee after: SHENZHEN TAIYONG ELECTRIC Co.,Ltd. Address before: The middle section of Wuhan road Huichuan District Waigaoqiao Industrial Park 563002 Guizhou city of Zunyi Province Patentee before: Guizhou Taiyong long Technology Co.,Ltd. |
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Address after: The middle section of Wuhan road Huichuan District Waigaoqiao Industrial Park 563002 Guizhou city of Zunyi Province Patentee after: Guizhou Taiyong long Technology Co.,Ltd. Address before: 563002 No. 147, Shanghai Road, Zunyi, Guizhou Patentee before: GUIZHOU CHANGZHENG SWITCH MFG CO.,LTD. |