CN102110917B - Holdback and stopping sleeve for moving and static contact rods in connection transformer - Google Patents
Holdback and stopping sleeve for moving and static contact rods in connection transformer Download PDFInfo
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- CN102110917B CN102110917B CN 200910215671 CN200910215671A CN102110917B CN 102110917 B CN102110917 B CN 102110917B CN 200910215671 CN200910215671 CN 200910215671 CN 200910215671 A CN200910215671 A CN 200910215671A CN 102110917 B CN102110917 B CN 102110917B
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- rod
- cylindrical metal
- metal tube
- static contact
- head rod
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Abstract
The invention discloses a holdback and stopping sleeve for moving and static contact rods in a connection transformer. The holdback and stopping sleeve consists of a moving contact rod, a static contact rod and an electric contactor; and the moving and static contact rods are positioned in a same axial direction, and a gap is reserved between the opposite end surfaces of the moving and static contact rods; the electric contactor consists of a cylindrical metal pipe, and two ends of the electric contactor are sleeved on the outer circumferences of the opposite ends of the moving contact rod and the static contract rod respectively; inner edges at the two ends of the electric contactor both have a conical surface shape; the inner diameter of the electric contactor is matched with the outer diameters of the opposite ends of the moving contact rod and the static contact rod; a reinforcing sleeve is sleeved on the electric contactor, and the length of the reinforcing sleeve is greater than that of the electric contactor; one end of the reinforcing sleeve is provided with a step towards the inner side, and the other end of the reinforcing sleeve is provided an internal screw thread; and the reinforcing sleeve is connected with a threaded section on the static contact rod via the screw thread. The circumferential surface of the inner wall of the electric contactor is electrically connected with the outer circumferential surfaces of the static contact rod and the moving contact rod, and a contact area is greatly increased compared with the end surface contact area of the static contact rod and the moving contact rod. The threaded connection and the conical surface ensure that t between the electric contactor is tight and firm fit with the static contact rod.
Description
Technical field
The present invention relates to electricity field, relate in particular to cable connector, particularly the anti-back of dynamic/static contact bar, retaining sleeve in a kind of connection transformer.
Background technology
In the prior art, the cable connector that is used for connection transformer is made of middle high-pressure insulating sleeve, stationary contact head rod, movable contact rod and American cable joint, wherein being connected between stationary contact head rod and the movable contact rod adopted the end contact mode, require stationary contact head rod and movable contact rod two in opposite directions gaplesss between the end face, but be subject to the impact of assembly technology and ambient pressure, stationary contact head rod and movable contact rod two in opposite directions between the end face be electrically connected unreliable.
Summary of the invention
The object of the present invention is to provide anti-back, the retaining sleeve of dynamic/static contact bar in a kind of connection transformer, the anti-back of dynamic/static contact bar, retaining sleeve will solve in the prior art stationary contact head rod and movable contact rod in the cable connector two and be electrically connected insecure technical problem between the end face in opposite directions in the described this connection transformer.
The anti-back of dynamic/static contact bar in this connection transformer of the present invention, the retaining sleeve is by movable contact rod, stationary contact head rod and electric contactor consist of, wherein, described movable contact rod is cylindrical, one end of described stationary contact head rod is cylindrical, be provided with a thread segment on the stationary contact head rod, movable contact rod and stationary contact head rod be positioned at same axially on, movable contact rod and stationary contact head rod be provided with in opposite directions the gap between the end face, described electric contactor is made of a cylindrical metal tube, the two ends of cylindrical metal tube are linked in respectively on the in opposite directions end excircle of movable contact rod and stationary contact head rod, the interior edge at cylindrical metal tube two ends all is the conical surface, the internal diameter of cylindrical metal tube matches with the in opposite directions external diameter of end of movable contact rod and stationary contact head rod, be arranged with a reinforcing sleeve on the excircle of cylindrical metal tube, described reinforcing sleeve is cylindrical tube, the length of reinforcing sleeve is greater than the length of cylindrical metal tube, one end of reinforcing sleeve is provided with step to the inside, the internal diameter of stage portion is less than the external diameter of cylindrical metal tube, the other end of reinforcing sleeve is provided with internal thread, and the other end of reinforcing sleeve is connected with thread segment on the stationary contact head rod by described internal thread.
Further, be provided with the crack of two above numbers in the tube wall of described cylindrical metal tube, the bearing of trend in any one described crack all is parallel to the axial of cylindrical metal tube, and the crack begins to extend to the middle part of cylindrical metal tube from an end or the two ends of cylindrical metal tube.
Further, be respectively arranged with annular recess on the outer circle wall at the two ends of described cylindrical metal tube, be arranged with separately one in the described annular recess and strengthen jump ring.
Further, the outer of the in opposite directions end face of described movable contact rod and stationary contact head rod is all tapered.
Further, the equal curved or triangle in the cross section of described annular recess.
Further, described movable contact rod is through silver-plated processing.
Further, described electric contactor is through silver-plated processing.
Further, described reinforcing sleeve adopts polytetrafluoroethylmaterial material.
Further, the external diameter of the in opposite directions end of described movable contact rod and stationary contact head rod equates.
The course of work of the present invention is: when an end of stationary contact head rod inserts cylindrical metal tube, stationary contact head rod and reinforcing sleeve are threaded connection, in the connection procedure, the conical surface on edge in the stationary contact head rod extruded cylindrical metal pipe end opening, make cylindrical metal tube produce distortion, the distortion of the reinforcing sleeve restriction cylindrical metal tube in the cylindrical metal tube outside, thus realize closely cooperating of cylindrical metal tube and stationary contact head rod.Movable contact rod is inserted cylindrical metal tube from the other end of cylindrical metal tube, produces interference fit with cylindrical metal tube.Stationary contact head rod and movable contact rod insertion are convenient in the crack that is arranged on the cylindrical metal tube.The reinforcement jump ring that is arranged in the annular recess can prevent from being with the excessive expansion distortion in production, transportation and assembling process of fissare cylindrical metal tube.
The present invention and prior art contrast, and its effect is actively with obvious.The present invention utilizes the periphery of cylindrical metal inside pipe wall to realize being electrically connected with the outer circumference surface of stationary contact head rod and movable contact rod, electrical-contact area increases greatly than the end contact of stationary contact head rod and movable contact rod, simultaneously, utilize the conical surface in the port of being threaded of reinforcing sleeve and stationary contact head rod, cylindrical metal tube, realized that electric contactor cooperates with the close and firm of stationary contact head rod.
Description of drawings:
Fig. 1 is the anti-back of dynamic/static contact bar in the connection transformer of the present invention, the schematic diagram of retaining sleeve.
Fig. 2 is the anti-back of dynamic/static contact bar in the connection transformer of the present invention, the cross-sectional view of the electric contactor in the retaining sleeve.
Fig. 3 is the anti-back of dynamic/static contact bar in the connection transformer of the present invention, the main TV structure schematic diagram of the electric contactor in the retaining sleeve.
Embodiment:
Such as Fig. 1, Fig. 2 and shown in Figure 3, the anti-back of dynamic/static contact bar in the connection transformer of the present invention, the retaining sleeve is by movable contact rod 1, stationary contact head rod 2 and electric contactor consist of, wherein, described movable contact rod 1 is cylindrical, one end of described stationary contact head rod 2 is cylindrical, be provided with a thread segment 8 on the stationary contact head rod 2, movable contact rod 1 and stationary contact head rod 2 be positioned at same axially on, movable contact rod 1 and stationary contact head rod 2 be provided with in opposite directions the gap between the end face, described electric contactor is made of a cylindrical metal tube 3, the two ends of cylindrical metal tube 3 are linked in respectively on the in opposite directions end excircle of movable contact rod 1 and stationary contact head rod 2, the interior edge at cylindrical metal tube 3 two ends all is the conical surface 9, the internal diameter of cylindrical metal tube 3 matches with the in opposite directions external diameter of end of movable contact rod 1 and stationary contact head rod 2, be arranged with a reinforcing sleeve 7 on the excircle of cylindrical metal tube 3, described reinforcing sleeve 7 is cylindrical tube, the length of reinforcing sleeve 7 is greater than the length of cylindrical metal tube 3, one end of reinforcing sleeve 7 is provided with step to the inside, the internal diameter of stage portion is less than the external diameter of cylindrical metal tube 3, the other end of reinforcing sleeve 7 is provided with internal thread, and the other end of reinforcing sleeve 7 is connected with thread segment 8 on the stationary contact head rod 2 by described internal thread.
As shown in Figure 3, further, be provided with the crack 4 of two above numbers in the tube wall of described cylindrical metal tube 3, the bearing of trend in any one described crack 4 all is parallel to the axial of cylindrical metal tube 3, and crack 4 begins to extend to the middle part of cylindrical metal tube 3 from an end or the two ends of cylindrical metal tube 3.
Further, be respectively arranged with annular recess 5 on the outer circle wall at the two ends of described cylindrical metal tube 3, be arranged with separately one in the described annular recess 5 and strengthen jump ring 6.
Further, the outer of the in opposite directions end face of described movable contact rod 1 and stationary contact head rod 2 is all tapered.
Further, the equal curved or triangle in the cross section of described annular recess 5.
Further, described movable contact rod 1 is through silver-plated processing.
Further, described electric contactor is through silver-plated processing.
Further, described reinforcing sleeve 7 adopts polytetrafluoroethylmaterial material.
Further, the external diameter of the in opposite directions end of described movable contact rod 1 and stationary contact head rod 2 equates.
The operation principle of present embodiment is: when an end of stationary contact head rod 2 inserts cylindrical metal tube 3, stationary contact head rod 2 is threaded connection with reinforcing sleeve 7, in the connection procedure, the conical surface on edge in stationary contact head rod 2 extruded cylindrical metal tubes 3 ports, make cylindrical metal tube 3 produce distortion, the distortion of the reinforcing sleeve 7 restriction cylindrical metal tubes 3 in cylindrical metal tube 3 outsides, thus realize closely cooperating of cylindrical metal tube 3 and stationary contact head rod 2.Movable contact rod 1 is inserted cylindrical metal tube 3 from the other end of cylindrical metal tube 3, produces interference fit with cylindrical metal tube 3.Stationary contact head rod 2 and movable contact rod 1 insertion are convenient in the crack 4 that is arranged on the cylindrical metal tube 3.The reinforcement jump ring 6 that is arranged in the annular recess 5 can prevent from being out of shape with cylindrical metal tube 3 excessive expansion in production, transportation and assembling process in crack 4.
Claims (9)
1. the anti-back of dynamic/static contact bar in the connection transformer, the retaining sleeve, by movable contact rod, stationary contact head rod and electric contactor consist of, it is characterized in that: described movable contact rod is cylindrical, one end of described stationary contact head rod is cylindrical, be provided with a thread segment on the stationary contact head rod, movable contact rod and stationary contact head rod be positioned at same axially on, movable contact rod and stationary contact head rod be provided with in opposite directions the gap between the end face, described electric contactor is made of a cylindrical metal tube, the two ends of cylindrical metal tube are linked in respectively on the in opposite directions end excircle of movable contact rod and stationary contact head rod, the interior edge at cylindrical metal tube two ends all is the conical surface, the internal diameter of cylindrical metal tube matches with the in opposite directions external diameter of end of movable contact rod and stationary contact head rod, be arranged with a reinforcing sleeve on the excircle of cylindrical metal tube, described reinforcing sleeve is cylindrical tube, the length of reinforcing sleeve is greater than the length of cylindrical metal tube, one end of reinforcing sleeve is provided with step to the inside, the internal diameter of stage portion is less than the external diameter of cylindrical metal tube, the other end of reinforcing sleeve is provided with internal thread, and the other end of reinforcing sleeve is connected with thread segment on the stationary contact head rod by described internal thread.
2. the anti-back of dynamic/static contact bar, retaining sleeve in the connection transformer as claimed in claim 1, it is characterized in that: the crack that is provided with two above numbers in the tube wall of described cylindrical metal tube, the bearing of trend in any one described crack all is parallel to the axial of cylindrical metal tube, and the crack begins to extend to the middle part of cylindrical metal tube from an end or the two ends of cylindrical metal tube.
3. the anti-back of dynamic/static contact bar, retaining sleeve in the connection transformer as claimed in claim 2, it is characterized in that: be respectively arranged with annular recess on the outer circle wall at the two ends of described cylindrical metal tube, be arranged with separately one in the described annular recess and strengthen jump ring.
4. the anti-back of dynamic/static contact bar, retaining sleeve in the connection transformer as claimed in claim 1, it is characterized in that: the outer of the in opposite directions end face of described movable contact rod and stationary contact head rod is all tapered.
5. the anti-back of dynamic/static contact bar, retaining sleeve in the connection transformer as claimed in claim 3, it is characterized in that: the cross section of described annular recess is curved or triangle all.
6. the anti-back of dynamic/static contact bar, retaining sleeve in the connection transformer as claimed in claim 1 is characterized in that: the silver-plated processing of described movable contact rod process.
7. the anti-back of dynamic/static contact bar, retaining sleeve in the connection transformer as claimed in claim 1 is characterized in that: the silver-plated processing of described electric contactor process.
8. the anti-back of dynamic/static contact bar, retaining sleeve in the connection transformer as claimed in claim 1 is characterized in that: described reinforcing sleeve employing polytetrafluoroethylmaterial material.
9. the anti-back of dynamic/static contact bar, retaining sleeve in the connection transformer as claimed in claim 1 is characterized in that: the external diameter of the in opposite directions end of described movable contact rod and stationary contact head rod equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910215671 CN102110917B (en) | 2009-12-24 | 2009-12-24 | Holdback and stopping sleeve for moving and static contact rods in connection transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910215671 CN102110917B (en) | 2009-12-24 | 2009-12-24 | Holdback and stopping sleeve for moving and static contact rods in connection transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102110917A CN102110917A (en) | 2011-06-29 |
| CN102110917B true CN102110917B (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910215671 Active CN102110917B (en) | 2009-12-24 | 2009-12-24 | Holdback and stopping sleeve for moving and static contact rods in connection transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102110917B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102121A (en) * | 1985-04-05 | 1986-10-01 | 奥托·邓克尔电器有限公司 | The manufacture method of contact spring socket |
| EP1249911A1 (en) * | 2001-04-12 | 2002-10-16 | Pfisterer Kontaktsysteme GmbH & Co. KG | Coupling system for gas insulated switchgears modules, in particular busbars coupling |
| CN1996680A (en) * | 2006-01-05 | 2007-07-11 | 镇江龙源电力科技有限公司 | Bus connector |
| CN201601236U (en) * | 2009-12-24 | 2010-10-06 | 上海瑞奇电气设备有限公司 | Anti-back and back-stopping connecting sleeve of movable and static contact rods in transformer |
-
2009
- 2009-12-24 CN CN 200910215671 patent/CN102110917B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102121A (en) * | 1985-04-05 | 1986-10-01 | 奥托·邓克尔电器有限公司 | The manufacture method of contact spring socket |
| EP1249911A1 (en) * | 2001-04-12 | 2002-10-16 | Pfisterer Kontaktsysteme GmbH & Co. KG | Coupling system for gas insulated switchgears modules, in particular busbars coupling |
| CN1996680A (en) * | 2006-01-05 | 2007-07-11 | 镇江龙源电力科技有限公司 | Bus connector |
| CN201601236U (en) * | 2009-12-24 | 2010-10-06 | 上海瑞奇电气设备有限公司 | Anti-back and back-stopping connecting sleeve of movable and static contact rods in transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102110917A (en) | 2011-06-29 |
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