CN210110615U - Outdoor earthing knife switch - Google Patents
Outdoor earthing knife switch Download PDFInfo
- Publication number
- CN210110615U CN210110615U CN201921242042.0U CN201921242042U CN210110615U CN 210110615 U CN210110615 U CN 210110615U CN 201921242042 U CN201921242042 U CN 201921242042U CN 210110615 U CN210110615 U CN 210110615U
- Authority
- CN
- China
- Prior art keywords
- switch
- contact
- earthing
- outdoor
- grounding
- 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.)
- Active
Links
Images
Landscapes
- Gas-Insulated Switchgears (AREA)
- Patch Boards (AREA)
Abstract
The utility model relates to an isolation switch, more specifically relates to an outdoor earthing switch, including the installation base, install and be equipped with two insulators on the installation base, be equipped with first contact piece and second contact piece on the insulator respectively, be equipped with the static contact on the first contact piece, rotate on the second contact piece and be connected with the isolation switch that can contact with the static contact, be provided with the earthing switch base on the second contact piece, can dismantle on the earthing switch base and be connected with the earthing switch, be provided with the earthing static contact with the contact of earthing switch on the installation base. The utility model discloses a ground connection switch need not to install earthing device additional and can realize carrying out the operation of earth connection on ground, improves the operating efficiency and the security of earth connection. Compared with the isolation switch additionally provided with the grounding device, the utility model discloses a grounding switch's is small, simple structure, and the wiring is rapid and convenient to use.
Description
Technical Field
The utility model relates to an isolation switch, more specifically relates to an outdoor earthing switch.
Background
According to the safety requirements of power construction and maintenance operation, relevant operation can be carried out after safety measures such as power failure, electricity testing and grounding of the distribution network transformer rack and the distribution line are converted into maintenance states. The operation personnel of stopping power and testing electricity usually stand on ground and just can accomplish, and usually need climb up transformer rack or shaft tower and just can operate ground connection operation, and high altitude construction influences the security and the operating efficiency of operation.
Patent document "CN 201820630423.5" discloses an isolation switch grounding device, which is added on an isolation switch, so that an operator only needs to disconnect the contact between the isolation switch and a static contact on the ground, and close the grounding device after opening the isolation switch, thereby completing the grounding operation. However, the device needs to be additionally installed at the original isolation knife switch, so that the volume of the isolation knife switch is increased. Meanwhile, the grounding disconnecting link is also arranged on the other two insulators, the structure is complex, and the wiring and the switching on and off are inconvenient, so that the operation efficiency is also influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art the isolation switch is installed earthing device additional and is leaded to bulky and the structure is complicated, influences the problem of operating efficiency, provides an outdoor earthing switch, need not to install earthing device additional, just can accomplish the operation of earth connection rapidly, shortens ground connection operating time, improves the operating efficiency.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides an outdoor earthing knife-switch, including the installation base, install in two insulators are equipped with on the installation base, be equipped with first contact blade and second contact blade on the insulator respectively, the static contact is equipped with on the first contact blade, rotate on the second contact blade and be connected with can contact closed isolation knife-switch with the static contact, be provided with the earthing knife-switch base on the second contact blade, can dismantle on the earthing knife-switch base and be connected with the earthing knife-switch, be provided with on the installation base with the earthing static contact of earthing knife-switch contact.
And rotating the isolation disconnecting link to ensure that the isolation disconnecting link is not contacted with the fixed contact, connecting the grounding disconnecting link to the grounding disconnecting link base, and simultaneously contacting the grounding disconnecting link with the grounding fixed contact to finish the operation of the grounding wire.
Preferably, the grounding knife switch is hung on the grounding knife switch base. The grounding switch base is provided with a hook, and the grounding switch is provided with a hanging rod matched with the hook. The hanging rod of the grounding disconnecting link is hung on the hook to complete the installation of the grounding disconnecting link, and then the grounding disconnecting link is contacted with the grounding static contact to complete the grounding wire operation, so that the operation is quick, simple and convenient.
Preferably, the cross section of the hanging rod is semicircular. The design can facilitate the grounding switch to be hung in the grounding switch base, and can ensure that the grounding switch is not easy to fall off from the base when closed.
Preferably, two ends of the grounding disconnecting link are provided with round holes. When the grounding switch is hung in or taken out of the grounding switch base, ground operators can complete operation by inserting the operating rod into the circular hole at the upper end. When the grounding disconnecting link is positioned in the grounding disconnecting link base and needs to be closed or pulled open, the operation can be completed by inserting the insulating operation rod into the lower end round hole. The staff can accomplish the operation of dismouting, switching on and off ground connection switch subaerial use the operating rod, and is easy and simple to handle.
Preferably, the mounting base is provided with a ground connection site. When the disconnecting link is used for three-phase power connection of a power grid, the ground wire is connected to the grounding connection position, the isolation disconnecting link can be directly connected in series and then connected into the rack or the tower, and the power failure line and the equipment are well grounded when the maintenance state is ensured to be switched over.
Preferably, the isolation switch is provided with an anti-misoperation rod, and one end of the anti-misoperation rod is located on one side of the grounding switch close to the static contact when the grounding switch is in contact with the grounding static contact. The earthing knife-switch can be pulled open by forcibly closing the isolating knife-switch under the closing state, thereby avoiding the isolating knife-switch and the earthing knife-switch from being in the closing position at the same time and achieving the purpose of preventing misoperation.
Preferably, the isolation switch is provided with a mounting rack, and the anti-misoperation rod is mounted on the mounting rack.
Preferably, the isolation disconnecting link comprises two contact pieces and a pull ring arranged between the two contact pieces, the second contact piece is provided with a mounting plate, one ends of the two contact pieces are respectively arranged on two sides of the mounting plate and are rotatably connected with the second contact piece through a clamping mechanism, and the other end of each contact piece is connected with the pull ring through the clamping mechanism. Under the action of the clamping mechanism, the contact blade forms elastic pressure on the static contact and the second contact blade, and good contact between the contact blade and the static contact and the second contact blade is ensured. The pull ring is fixed on the movable contact through a bolt to provide an acting point for the pulling and closing operation of the disconnecting link.
Preferably, the clamping mechanism includes a fastening member (which may be a bolt, a nut) for connecting the contact pieces and an elastic member (which may be a spring) for pressing the contact pieces.
Compared with the prior art, the beneficial effects are: the utility model discloses a ground connection switch need not to install earthing device additional and can realize carrying out the operation of earth connection on ground, improves the operating efficiency and the security of earth connection. Compared with the isolation switch additionally provided with the grounding device, the utility model discloses a grounding switch's is small, simple structure, and the wiring is rapid and convenient to use.
Drawings
Fig. 1 is a schematic perspective view of an outdoor earthing knife-switch of the present invention;
FIG. 2 is a schematic view of a second contact blade according to the present invention;
fig. 3 is a schematic structural diagram of the grounding disconnecting link of the present invention;
fig. 4 is a schematic structural diagram of the isolation switch of the present invention.
Wherein: 1. installing a base; 101. a ground connection site; 2. an insulator; 3. a first contact blade; 4. a second contact blade; 5. static contact; 6. isolating the disconnecting link; 601. a misoperation prevention lever; 602. a mounting frame; 603. a contact piece; 604. a pull ring; 605. a bolt; 606. a nut; 607. a spring; 7. a grounding switch base; 701. hooking; 8. a grounding disconnecting link; 801. a hanging rod; 802. a circular hole; 9. and (5) grounding and static contacts.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.
The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:
example 1
Fig. 1 shows an embodiment of an outdoor earthing switch, which includes an installation base 1, two insulators 2 installed on the installation base 1, a first contact blade 3 and a second contact blade 4 are respectively installed on the insulators 2, a static contact 5 is installed on the first contact blade 3, an isolation switch 6 is rotatably connected to the second contact blade 4, and the isolation switch 6 can be contacted with or disconnected from the static contact 5 through rotation relative to the second contact blade 4. The second contact blade 4 is provided with a grounding switch base 7, the grounding switch base 7 is detachably connected with a grounding switch 8, and the mounting base 1 is provided with a grounding static contact 9 contacted with the grounding switch 8.
The installation base 1 is provided with a grounding connection position 101, when the disconnecting link is used for three-phase power grid connection, the ground wire is connected to the grounding connection position, the isolation disconnecting link can be directly connected in series and then connected into a rack or a tower, and power failure lines and equipment are well grounded when the maintenance state is ensured.
The utility model discloses a theory of operation or work flow: the isolating switch 6 is rotated so that the isolating switch 6 is not in contact with the stationary contact 5. The grounding knife switch 8 is connected to the grounding knife switch base 7, and meanwhile, the grounding knife switch 8 is contacted with the grounding static contact 9, and therefore the operation of the grounding wire can be completed.
The utility model has the advantages that: the utility model discloses a switch need not to install earthing device additional and can realize carrying out the operation of earth connection on ground, improves the operating efficiency and the security of earth connection. Compared with the isolation switch additionally provided with the grounding device, the utility model discloses a grounding switch's is small, simple structure, and the wiring is rapid and convenient to use.
Example 2
In this embodiment, on the basis of embodiment 1, as shown in fig. 2 to 3, the grounding knife switch 8 is hung on the grounding knife switch base 7.
Specifically, the earthing switch base 7 is provided with a hook 701, and the earthing switch 8 is provided with a hanging rod 801 engaged with the hook 701. The hanging rod 801 of the grounding disconnecting link 8 is hung on the hook 701 to complete the installation of the grounding disconnecting link 8, and then the grounding disconnecting link 8 is contacted with the grounding static contact 9 to complete the grounding wire operation, so that the operation is quick, simple and convenient. The earthing knife-switch 7 can also be provided with a hanging rod, and the earthing knife-switch 8 is provided with a hook matched with the hanging rod.
The cross section of the hanging rod 801 is semicircular. The design can facilitate the grounding switch to be hung in the grounding switch base, and can ensure that the grounding switch is not easy to fall off from the base when closed.
Wherein, the two ends of the grounding knife-switch 8 are provided with round holes 802. When the grounding switch is hung in or taken out of the grounding switch base, ground operators can complete operation by inserting the operating rod into the circular hole at the upper end. When the grounding disconnecting link is positioned in the grounding disconnecting link base and needs to be closed or pulled open, the operation can be completed by inserting the insulating operation rod into the lower end round hole. The staff can accomplish the operation of dismouting, switching on and off ground connection switch subaerial use the operating rod, and is easy and simple to handle.
The remaining technical features are consistent with embodiment 1, and the working principle is also consistent with embodiment 1.
Example 3
On the basis of embodiment 1, as shown in fig. 2 and 4, the isolation switch 6 is provided with an anti-misoperation rod 601, and in a state where the grounding switch 8 is in contact with the grounding fixed contact 9, one end of the anti-misoperation rod 601 is located on one side of the grounding switch 8 close to the fixed contact 5. The earthing knife-switch can be pulled open by forcibly closing the isolating knife-switch under the closing state, thereby avoiding the isolating knife-switch and the earthing knife-switch from being in the closing position at the same time and achieving the purpose of preventing misoperation.
The isolation switch 6 is provided with a mounting frame 602, and the anti-misoperation rod 601 is mounted on the mounting frame 602.
In addition, the isolation switch 6 comprises two contact plates 603 and a pull ring 604 arranged between the contact plates 603, the second contact blade 4 is provided with a mounting plate 401, one ends of the two contact plates 603 are arranged at two sides of the mounting plate 401 and are rotatably connected with the second contact blade 4 through a bolt 605, a nut 606 and a spring 607, and the other end of the contact plate 603 is connected with the pull ring 604 through the bolt 605, the nut 606 and the spring 607. Under the action of the spring, the contact blade forms elastic pressure on the static contact and the second contact blade, and good contact between the contact blade and the static contact and the second contact blade is ensured. The pull ring is fixed on the movable contact through a bolt to provide an acting point for the pulling and closing operation of the disconnecting link.
The remaining technical features are consistent with embodiment 1, and the working principle is also consistent with embodiment 1.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides an outdoor earthing knife-switch, including installation base (1), install in two insulators (2) are equipped with on installation base (1), be equipped with first contact piece (3) and second contact piece (4) on insulator (2) respectively, static contact (5) are equipped with on first contact piece (3), it is connected with isolation switch (6) that can contact closure or separation with static contact (5) to rotate on second contact piece (4), its characterized in that, be provided with earthing knife-switch base (7) on second contact piece (4), can dismantle on earthing knife-switch base (7) and be connected with earthing knife-switch (8), be provided with on installation base (1) with earthing static contact (9) of earthing knife-switch (8) contact.
2. An outdoor earthable switch according to claim 1, characterized in that said earthing switch (8) is hung on said earthing switch base (7).
3. An outdoor earthable switch according to claim 2, characterized in that said earthing switch base (7) is provided with a hook (701), said earthing switch (8) being provided with a hanging rod (801) cooperating with said hook (701).
4. An outdoor earthable switch according to claim 3, characterized in that said hanging bar (801) is semicircular in cross-section.
5. An outdoor earthable switch according to claim 2, characterized in that both ends of said earthing switch (8) are provided with round holes (802).
6. An outdoor earthable switch according to claim 1, characterized in that said mounting base (1) is provided with an earth connection site (101).
7. The outdoor earthing knife-switch according to claim 1, characterized in that, the isolating knife-switch (6) is provided with an anti-misoperation rod (601), and under the state that the earthing knife-switch (8) is contacted with the earthing static contact (9), one end of the anti-misoperation rod (601) is located at one side of the earthing knife-switch (8) close to the static contact (5).
8. An outdoor earthable switch according to claim 7, characterized in that said isolating switch (6) is provided with a mounting bracket (602), said anti-mishandling lever (601) being mounted on said mounting bracket (602).
9. An outdoor earthable switch according to any of claims 1-8, characterized in that said isolating switch (6) comprises two contact blades (603) and a pull ring (604) arranged between said contact blades (603), said second contact blade (4) is provided with a mounting plate (401), one end of each of said two contact blades (603) is arranged on either side of said mounting plate (401) and is rotatably connected to said mounting plate (401) by a clamping mechanism, and the other end of each of said two contact blades (603) is connected to said pull ring (604) by a clamping mechanism.
10. An outdoor earthable switch according to claim 9, characterized in that said clamping means comprise a fastening for connecting said contact blade (603) and a spring for compressing said contact blade (603).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921242042.0U CN210110615U (en) | 2019-08-01 | 2019-08-01 | Outdoor earthing knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921242042.0U CN210110615U (en) | 2019-08-01 | 2019-08-01 | Outdoor earthing knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210110615U true CN210110615U (en) | 2020-02-21 |
Family
ID=69567371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921242042.0U Active CN210110615U (en) | 2019-08-01 | 2019-08-01 | Outdoor earthing knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210110615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600311A (en) * | 2019-08-01 | 2019-12-20 | 广东电网有限责任公司 | Outdoor earthing knife switch |
-
2019
- 2019-08-01 CN CN201921242042.0U patent/CN210110615U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600311A (en) * | 2019-08-01 | 2019-12-20 | 广东电网有限责任公司 | Outdoor earthing knife switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9881755B1 (en) | Motorized high voltage in-line disconnect switch with hand-held communication system to prevent unwanted operation | |
| CN210110615U (en) | Outdoor earthing knife switch | |
| CN219303578U (en) | Electrical engineering distribution circuit breaker | |
| CN210222122U (en) | Ground wire device for circuit insulation test | |
| CN209691985U (en) | It is grounded rapid installation device | |
| CN110600311A (en) | Outdoor earthing knife switch | |
| CN205583492U (en) | Cubical switchboard handcart handle hole keeper type anti -misoperation device | |
| CN111128578B (en) | Safety lock catch for high-voltage power distribution cabinet | |
| CN211455608U (en) | High-voltage vacuum switch connected by hinge | |
| CN210723937U (en) | Lower isolation belt ground knife fixed high-voltage ring main unit structure | |
| CN203910718U (en) | Apparatus for preventing false switching of a breaker if no power exists at an electrical network side | |
| CN214672355U (en) | Prepackage type safe quick earthing device | |
| CN217983109U (en) | Grounding switch contact assembly for switch cabinet | |
| CN210866784U (en) | Withdrawable switch cabinet with circuit breaker convenient to install | |
| CN110879371A (en) | Overhead line small current grounding detection box and fault detection method thereof | |
| CN219575490U (en) | Indoor isolator with ground connection function | |
| CN219936966U (en) | Leakage tripping indicating structure of leakage protection circuit breaker | |
| CN216871870U (en) | Can dismantle intelligent circuit breaker structure of combination | |
| CN216015227U (en) | Wind-power integrated circuit breaker | |
| CN217544501U (en) | Circuit breaker switching device | |
| CN215265998U (en) | Distribution network overhead line type grounding switch | |
| CN213905225U (en) | Isolating switch with limiting device | |
| CN215578396U (en) | Insulating shell of automatic air circuit breaker | |
| CN213988715U (en) | Outdoor AC high-voltage isolating switch lightning arrester combined electrical apparatus | |
| CN220984378U (en) | Misoperation-preventing grounding disconnecting link of low-voltage distribution box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |