CN110571089A - Distribution network protection isolating switch - Google Patents
Distribution network protection isolating switch Download PDFInfo
- Publication number
- CN110571089A CN110571089A CN201910828681.3A CN201910828681A CN110571089A CN 110571089 A CN110571089 A CN 110571089A CN 201910828681 A CN201910828681 A CN 201910828681A CN 110571089 A CN110571089 A CN 110571089A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- hole
- base
- distribution network
- static
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
Abstract
The invention discloses an isolating switch for protecting a distribution network, which comprises a base, a connecting rod, a moving contact and a static contact, wherein the moving contact and the static contact are arranged on the base; the top end of the static contact is provided with a static terminal connecting plate and a static contact seat, and the side surface of the static contact is provided with a connecting rod blind hole; the connecting rod penetrates through the connecting rod through hole and then is inserted into the connecting rod blind hole for fixation, and the moving contact seat is provided with a self-locking mechanism capable of fixing the connecting rod. According to the invention, the connecting rod passes through the connecting rod through hole on the movable contact base and then is inserted into the connecting rod blind hole on the static contact base, and the self-locking mechanism fixes the connecting rod, so that the stability of connection between the static contact base and the movable contact base is ensured, and the strong wind resistance of the whole device is improved. Meanwhile, the movable contact seat is connected with the static contact seat through the connecting rod, so that the contact area is greatly increased, the heat loss can be effectively reduced, and the service life of the whole device is ensured.
Description
Technical Field
The invention relates to an isolating switch in the technical field of electricity, in particular to an isolating switch for protecting a distribution network.
Background
The 10KV isolating switch is used for connecting or isolating a power supply under the condition that the 10KV distribution network line has voltage and is not loaded. Due to simple structure and convenient operation, the high-voltage isolating switch is generally used as a main element in a distribution network line, and the most commonly used type HGW9-12(W)/630 10KV isolating switch is currently used.
The connection of current isolator moves, the static contact is through the sheetmetal joint, and this kind of connected mode is connected under general circumstances and is belonged to comparatively firm type, but, in coastal windy weather, its connection just seems very unstable, and especially whole device rocks under the effect of strong wind for the sheetmetal constantly rocks with the contact of moving, the static contact, influences isolator's result of use, waits for a stable isolator for joining in marriage net protection of connecting to be used for solving above-mentioned problem urgently.
Disclosure of Invention
The invention aims to provide a distribution network protection isolating switch, which improves the connection stability of a static contact base and a moving contact base.
the solution of the invention for solving the technical problem is as follows: a distribution network protection isolating switch comprises a base, a connecting rod, a moving contact and a static contact, wherein the moving contact and the static contact are installed on the base; the top end of the static contact is provided with a static terminal connecting plate and a static contact seat, and the side surface of the static contact is provided with a connecting rod blind hole; the connecting rod penetrates through the connecting rod through hole and then is inserted into the connecting rod blind hole for fixation, and the moving contact seat is provided with a self-locking mechanism capable of fixing the connecting rod.
As a further improvement of the above technical scheme, a bayonet lock through hole is formed in the top surface of the movable contact base, the self-locking mechanism is installed on the top surface of the movable contact base and comprises a barrel body with a bottom opening and a lifting plate capable of lifting in the barrel body, the top surface of the lifting plate is connected with the inner end face of the barrel body through a first elastic piece, a bayonet lock is arranged on the bottom surface of the lifting plate, a clamping hole is formed in the first end of the connecting rod, and the bayonet lock penetrates through the bayonet lock through hole and then is inserted into the clamping hole.
as a further improvement of the technical scheme, two sliding grooves are formed in the side face of the barrel, sliding rods capable of sliding along the sliding grooves are arranged on the two sides of the lifting plate, and the sliding rods extend out of the barrel.
As a further improvement of the technical scheme, the bayonet lock comprises a rigid pin shaft core, and the outer side of the pin shaft core is wrapped with a damping sleeve.
As a further improvement of the technical scheme, at least one locking groove is formed in the second end of the connecting rod, at least one second elastic piece is arranged in the connecting blind hole, and the second elastic piece is matched with the locking groove.
As a further improvement of the above technical solution, the longitudinal section of the locking groove is arc-shaped, the second elastic member is a metal circular ring half-tube, and the axial direction of the metal circular ring half-tube is perpendicular to the insertion direction of the connecting rod.
As a further improvement of the technical scheme, at least one static binding post is arranged on the static terminal connecting plate, and at least one movable binding post is arranged on the movable terminal connecting plate.
As a further improvement of the above technical solution, the lower portion of the base is provided with at least two fixing frames, and each fixing frame is provided with at least one mounting hole.
As a further improvement of the technical scheme, the base is in a U-shaped groove shape, two inner side surfaces of the base are respectively provided with symmetrical sliding rails, and the fixing frames are movably mounted on the sliding rails.
As a further improvement of the technical scheme, a plurality of pin holes are formed in the inner top surface of the base, the longitudinal section of the fixing frame is U-shaped, a longitudinal threaded through hole is formed in the top of the fixing frame, and a screw penetrates through the threaded through hole and then is inserted into the pin hole to be fixed.
The invention has the beneficial effects that: according to the invention, the connecting rod passes through the connecting rod through hole on the movable contact base and then is inserted into the connecting rod blind hole on the static contact base, and the self-locking mechanism fixes the connecting rod, so that the stability of connection between the static contact base and the movable contact base is ensured, and the strong wind resistance of the whole device is improved. Meanwhile, the movable contact seat is connected with the static contact seat through the connecting rod, so that the contact area is greatly increased, the heat loss can be effectively reduced, and the service life of the whole device is ensured.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural view of the self-locking mechanism of the present invention;
FIG. 3 is a cross-sectional view of the bayonet of the present invention;
FIG. 4 is a schematic view of a base structure according to a second embodiment of the present invention;
Fig. 5 is a schematic view of a base structure in the third embodiment of the present invention.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions.
Example one
Referring to fig. 1 to 3, a distribution network protection disconnecting switch includes: the device comprises a base 1, a connecting rod 11, a moving contact 2 and a static contact 3 which are arranged on the base 1, wherein the top end of the moving contact 2 is provided with a moving terminal connecting plate 8 and a moving contact base 10, and the side surface of the moving contact base 10 is provided with a connecting rod through hole; the top end of the static contact 3 is provided with a static terminal connecting plate 4 and a static contact seat 6, and the side surface of the static contact is provided with a connecting rod blind hole 7; the connecting rod 11 penetrates through the connecting rod through hole and then is inserted into the connecting rod blind hole 7 for fixation, and the moving contact seat 10 is provided with a self-locking mechanism 14 capable of fixing the connecting rod 11. Preferably, the movable contact base 10 is a circular tube sleeve structure. After the connecting rod 11 passes through the connecting rod through hole on the movable contact seat 10, the connecting rod 11 is inserted into the connecting rod blind hole 7 of the static contact seat 6, and the position of the connecting rod 11 is fixed by the self-locking mechanism 14 at the moment, so that the connecting rod 11 is firmly limited between the static contact seat 6 and the movable contact seat 10, the connection stability of the static contact seat 6 and the movable contact seat 10 is effectively ensured, and the wind resistance of the whole device is improved. Meanwhile, because the static contact seat 6 is connected with the movable contact seat 10 through the rod, the contact area is greatly increased, the heat loss can be effectively reduced, and the service life of the whole device is prolonged.
Further as a preferred embodiment, a bayonet pin through hole 13 is formed in the top surface of the movable contact block 10, the self-locking mechanism 14 is installed on the top surface of the movable contact block 10, the self-locking mechanism 14 includes a barrel 141 with a bottom opening and a lifting plate 143 capable of lifting in the barrel 141, two sliding grooves 142 are formed in the side surface of the barrel 141, sliding rods 144 capable of sliding along the sliding grooves 142 are arranged on both sides of the lifting plate 143, and the sliding rods 144 extend out of the outside of the barrel 141. The top surface of the lifting plate 143 is connected to the inner end surface of the cylinder 141 through a first elastic member 145, and the bottom surface of the lifting plate 143 is provided with a locking pin 146. Preferably, the first elastic member 145 may be a spring. The sliding rod 144 is lifted upwards, and the lifting plate 143 compresses the first elastic member 145, so that the connecting rod 11 can smoothly pass through the connecting rod through hole. The first end of the connecting rod 11 is provided with a clamping hole 12, after the second end of the connecting rod 11 is inserted into the stationary contact block 6, the sliding rod 144 is released, and the lifting plate 143 enables the clamping pin 146 to penetrate through the clamping pin through hole 13 and then to be inserted into the clamping hole 12 for fixing under the pressure of the spring. The locking pin 146 is tightly pressed against the locking hole 12 of the connecting rod 11, so that the connecting rod 11 can be tightly contacted with the movable contact base 10.
Further in a preferred embodiment, referring to fig. 3, the detent 146 includes a rigid pin core 1461, and a damping sleeve 1462 is wrapped around the pin core 1461. Preferably, damping sleeve 1462 chooses the rubber material to make for use, can reduce the impact force that bayonet lock 146 descends to insert in the card hole 12 suddenly effectively through setting up damping sleeve 1462, avoids producing fatigue damage between connecting rod 11 and the bayonet lock 146 should constantly collide, guarantees the life of connecting rod 11 and bayonet lock 146.
Further as a preferred embodiment, the second end of the connecting rod 11 is provided with at least one locking groove 111, the blind connecting hole is provided with at least one second elastic member 71, and the second elastic member 71 is matched with the locking groove 111. Preferably, the top surface and the bottom surface of the connecting rod 11 are respectively provided with a locking groove 111, the longitudinal section of the locking groove 111 is arc-shaped, and the depth is less than 3 mm; the insertion direction of the locking groove 111 is vertical. The second elastic members 71 are metal circular ring half pipes, the axial direction of each metal circular ring half pipe is perpendicular to the insertion direction of the connecting rod 11, each metal circular ring half pipe can be a copper part, the two second elastic members 71 are respectively clamped into the locking grooves 111, and the second elastic members 71 are in interference fit with the locking grooves 111. The second elastic piece 71 is matched with the locking groove 111, so that the second end of the connecting rod 11 can be fixed in the connecting rod blind hole 7 and is not easy to separate; and the connecting rod 11 is tightly connected with the second elastic piece 71, so that the stability of electric energy transmission is ensured.
Further as a preferred embodiment, at least two static terminals 5 are arranged on the static terminal connecting plate 4, and the two static terminals 5 are arranged on the left side of the static contact seat 6 in parallel. Correspondingly, two movable binding posts 9 are arranged on the movable terminal connecting plate 8, and the two movable binding posts 9 are arranged on the right side of the movable contact seat 10 in parallel.
example two
In addition to the first embodiment, referring to fig. 4, at least two fixing frames 102 are disposed at the lower portion of the base 1, and each fixing frame 102 is disposed with at least one mounting hole 103. The base 1 is in the shape of an inverted U-shaped groove, two inner side surfaces of the base 1 are respectively provided with symmetrical slide rails 101, and the fixing frames 102 are movably arranged on the slide rails 101. The outer side of the fixing frame 102 is installed on the sliding rail 101, and the distance between the two fixing frames 102 can be adjusted at will by sliding the fixing frame 102, so as to meet different installation environments.
EXAMPLE III
On the basis of the second embodiment, referring to fig. 5, the inner top surface of the base 1 is provided with a plurality of pin holes, the longitudinal section of the fixing frame 102 is U-shaped, and the top of the fixing frame is provided with a longitudinal threaded through hole. After the fixing frame 102 is moved to a proper position, the screw 104 is inserted into the pin hole after penetrating through the threaded through hole, and the screw 104 can be fixed in the fixing frame 102 and the base 1 because the screw 104 is in threaded connection with the threaded through hole on the fixing frame 102.
The working principle of the invention is as follows: lift the lifter plate 143 in the self-locking mechanism 14, pass the connecting rod through-hole in the movable contact seat 10 with the connecting rod 11, and insert in the connecting rod blind hole 7, release the lifter plate 143 this moment, first elastic component 145 roof pressure lifter plate 143 descends, bayonet pin 146 inserts in the card hole 12 of connecting rod 11, thereby pin connecting rod 11, firmly inject connecting rod 11 between stationary contact seat 6 and movable contact seat 10, thereby guarantee the stability that stationary contact seat 6 is connected with movable contact seat 10 effectively, improve the anti strong wind ability of whole device. In addition, the fixing frames 102 are slid to adjust the distance between the two fixing frames 102, and then the relative positions of the fixing frames 102 and the base 1 are fixed through screws, so that the base 1 is installed.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.
Claims (10)
1. The utility model provides a join in marriage net isolator for protection which characterized in that includes:
A base (1);
The moving contact device comprises a moving contact (2) arranged on a base (1), wherein the top end of the moving contact (2) is provided with a moving terminal connecting plate (8) and a moving contact seat (10), and the side surface of the moving contact seat (10) is provided with a connecting rod through hole;
the static contact is installed on a base (1), a static terminal connecting plate (4) and a static contact base (6) are arranged at the top end of the static contact (3), and a connecting rod blind hole (7) is formed in the side face of the static contact;
the connecting rod (11), connecting rod (11) are fixed in inserting connecting rod blind hole (7) after running through the connecting rod through-hole, be equipped with self-locking mechanism (14) that can fixed connection pole (11) on the movable contact seat (10).
2. The distribution network protection disconnecting switch according to claim 1, characterized in that: be equipped with bayonet lock through-hole (13) on the top surface of movable contact seat (10), install on the top surface of movable contact seat (10) self-locking mechanism (14), self-locking mechanism (14) are including barrel (141) that have the bottom outlet and lifter plate (143) that can go up and down in barrel (141), the top surface of lifter plate (143) meets through the interior terminal surface of first elastic component (145) with barrel (141), the bottom surface of lifter plate (143) is equipped with bayonet lock (146), be equipped with card hole (12) on the first end of connecting rod (11), bayonet lock (146) are run through behind bayonet lock through-hole (13) and are inserted in card hole (12).
3. The distribution network protection disconnecting switch according to claim 2, characterized in that: the side of the barrel body (141) is provided with two sliding grooves (142), two sides of the lifting plate (143) are provided with sliding rods (144) capable of sliding along the sliding grooves (142), and the sliding rods (144) extend out of the barrel body (141).
4. The distribution network protection disconnecting switch according to claim 2, characterized in that: the bayonet lock (146) comprises a rigid pin shaft core (1461), and a damping sleeve (1462) wraps the outer side of the pin shaft core (1461).
5. The disconnecting switch for the protection of the distribution network according to claim 1 or 2, characterized in that: the second end of connecting rod (11) is equipped with at least one locked groove (111), be equipped with at least one second elastic component (71) in the connection blind hole, second elastic component (71) and locked groove (111) cooperate.
6. the distribution network protection disconnecting switch according to claim 5, characterized in that: the longitudinal section of the locking groove (111) is arc-shaped, the second elastic piece (71) is a metal circular ring half tube, and the axial direction of the metal circular ring half tube is perpendicular to the inserting direction of the connecting rod (11).
7. The distribution network protection disconnecting switch according to claim 1, characterized in that: the static terminal connecting plate (4) is provided with at least one static terminal (5), and the movable terminal connecting plate (8) is provided with at least one movable terminal (9).
8. the distribution network protection disconnecting switch according to claim 1, characterized in that: the lower part of the base (1) is provided with at least two fixing frames (102), and each fixing frame (102) is provided with at least one mounting hole (103).
9. the distribution network protection disconnecting switch according to claim 8, characterized in that: the base (1) is in a U-shaped groove shape, two inner side surfaces of the base (1) are respectively provided with symmetrical sliding rails (101), and the fixing frames are movably mounted on the sliding rails (101).
10. The distribution network protection disconnecting switch according to claim 9, characterized in that: the inner top surface of the base (1) is provided with a plurality of pin holes, the longitudinal section of the fixing frame is U-shaped, the top of the fixing frame is provided with a longitudinal threaded through hole, and a screw (104) penetrates through the threaded through hole and then is inserted into the pin hole for fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910828681.3A CN110571089B (en) | 2019-09-03 | 2019-09-03 | Disconnecting switch for distribution network protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910828681.3A CN110571089B (en) | 2019-09-03 | 2019-09-03 | Disconnecting switch for distribution network protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110571089A true CN110571089A (en) | 2019-12-13 |
| CN110571089B CN110571089B (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910828681.3A Active CN110571089B (en) | 2019-09-03 | 2019-09-03 | Disconnecting switch for distribution network protection |
Country Status (1)
| Country | Link |
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| CN (1) | CN110571089B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000011817A (en) * | 1998-06-26 | 2000-01-14 | Mitsubishi Electric Corp | Main circuit opening and closing device |
| JP2000243193A (en) * | 1999-02-16 | 2000-09-08 | Takaoka Electric Mfg Co Ltd | Lock mechanism of operating device for switch |
| CN201383458Y (en) * | 2009-04-03 | 2010-01-13 | 山东泰开隔离开关有限公司 | Bar-type self-operated conductive structure for high-voltage disconnecting switch |
| CN201498422U (en) * | 2009-06-25 | 2010-06-02 | 湖北湖开电气有限公司 | Moving contact device of outdoor high-voltage isolating switch |
| CN201804778U (en) * | 2010-03-15 | 2011-04-20 | 苏州电器科学研究院股份有限公司 | Isolating switch in high-voltage heavy-current test loop |
| CN202049894U (en) * | 2011-01-27 | 2011-11-23 | 平高集团有限公司 | Isolating switch and static contact component of isolating switch |
| CN204067162U (en) * | 2014-09-16 | 2014-12-31 | 广东电网公司江门供电局 | The outdoor anti-theft isolated switch of a kind of distribution |
| CN205508693U (en) * | 2016-04-07 | 2016-08-24 | 福建恒冠机电设备有限公司 | Isolating switch |
| CN206163392U (en) * | 2016-11-09 | 2017-05-10 | 天津市华捷电力工程有限公司 | Isolating switch |
| CN107256817A (en) * | 2017-08-10 | 2017-10-17 | 张秋阳 | A kind of new totally-enclosed high voltage isolator |
| CN206850304U (en) * | 2017-06-30 | 2018-01-05 | 中国西电电气股份有限公司 | A kind of installation of GIS device main bus-bar slider and provision for disengagement |
| CN208271795U (en) * | 2018-05-09 | 2018-12-21 | 廊坊北熔电气股份有限公司 | A kind of disconnecting switch facilitating installation |
| CN208797191U (en) * | 2018-09-14 | 2019-04-26 | 广州艾博电力设计院有限公司 | A kind of attachment device for preventing cable terminal from overheating |
| CN209087678U (en) * | 2018-10-26 | 2019-07-09 | 武汉倍诺德开关有限公司 | A kind of novel manual disconnecting switch with ground |
| CN210778379U (en) * | 2019-09-03 | 2020-06-16 | 广东艾博电力设计院(集团)有限公司 | Distribution network protection isolating switch |
-
2019
- 2019-09-03 CN CN201910828681.3A patent/CN110571089B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000011817A (en) * | 1998-06-26 | 2000-01-14 | Mitsubishi Electric Corp | Main circuit opening and closing device |
| JP2000243193A (en) * | 1999-02-16 | 2000-09-08 | Takaoka Electric Mfg Co Ltd | Lock mechanism of operating device for switch |
| CN201383458Y (en) * | 2009-04-03 | 2010-01-13 | 山东泰开隔离开关有限公司 | Bar-type self-operated conductive structure for high-voltage disconnecting switch |
| CN201498422U (en) * | 2009-06-25 | 2010-06-02 | 湖北湖开电气有限公司 | Moving contact device of outdoor high-voltage isolating switch |
| CN201804778U (en) * | 2010-03-15 | 2011-04-20 | 苏州电器科学研究院股份有限公司 | Isolating switch in high-voltage heavy-current test loop |
| CN202049894U (en) * | 2011-01-27 | 2011-11-23 | 平高集团有限公司 | Isolating switch and static contact component of isolating switch |
| CN204067162U (en) * | 2014-09-16 | 2014-12-31 | 广东电网公司江门供电局 | The outdoor anti-theft isolated switch of a kind of distribution |
| CN205508693U (en) * | 2016-04-07 | 2016-08-24 | 福建恒冠机电设备有限公司 | Isolating switch |
| CN206163392U (en) * | 2016-11-09 | 2017-05-10 | 天津市华捷电力工程有限公司 | Isolating switch |
| CN206850304U (en) * | 2017-06-30 | 2018-01-05 | 中国西电电气股份有限公司 | A kind of installation of GIS device main bus-bar slider and provision for disengagement |
| CN107256817A (en) * | 2017-08-10 | 2017-10-17 | 张秋阳 | A kind of new totally-enclosed high voltage isolator |
| CN208271795U (en) * | 2018-05-09 | 2018-12-21 | 廊坊北熔电气股份有限公司 | A kind of disconnecting switch facilitating installation |
| CN208797191U (en) * | 2018-09-14 | 2019-04-26 | 广州艾博电力设计院有限公司 | A kind of attachment device for preventing cable terminal from overheating |
| CN209087678U (en) * | 2018-10-26 | 2019-07-09 | 武汉倍诺德开关有限公司 | A kind of novel manual disconnecting switch with ground |
| CN210778379U (en) * | 2019-09-03 | 2020-06-16 | 广东艾博电力设计院(集团)有限公司 | Distribution network protection isolating switch |
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| Publication number | Publication date |
|---|---|
| CN110571089B (en) | 2023-10-27 |
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