CN112885636A

CN112885636A - High-voltage isolating switch for indoor use

Info

Publication number: CN112885636A
Application number: CN202110038474.5A
Authority: CN
Inventors: 童志检
Original assignee: Zhejiang Yueling Electric Co ltd
Current assignee: Zhejiang Yueling Electric Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-06-01
Anticipated expiration: 2041-01-12
Also published as: CN112885636B

Abstract

The invention belongs to the technical field related to isolating switches, and particularly relates to an indoor high-voltage isolating switch which comprises a switch mechanism, wherein a fixing mechanism is arranged on the switch mechanism, an isolating mechanism is arranged on one side of the fixing mechanism, which is close to the switch mechanism, and an adjusting mechanism is arranged on one side of the switch mechanism, which is far away from the fixing mechanism; the high-voltage isolating switch for the indoor use has the advantages that the high-voltage isolating switch is convenient to install, disassemble and assemble, trouble and labor are saved, reliable illuminating light can be provided, the high-voltage isolating switch is safe and reliable in protection and convenient to operate, meanwhile, the contact angle of a switch blade can be conveniently adjusted, and the high-voltage isolating switch is closer and more firm in structural connection, safe and reliable, convenient to use and the like.

Description

High-voltage isolating switch for indoor use

Technical Field

The invention relates to the technical field of earthing switches, in particular to an indoor high-voltage isolating switch.

Background

Briefly, the isolating switch is a switching device which is mainly used for isolating a power supply and switching operation and is used for connecting and cutting off a small current circuit and has no arc extinguishing function, and when the isolating switch is in a separated position, an insulation distance meeting the specified requirement and an obvious disconnection mark are arranged between contacts; when the switch is closed, the switch equipment capable of bearing the current under the normal loop condition and the current under the abnormal condition (such as short circuit) within the specified time is generally used as a high-voltage isolating switch, namely an isolating switch with the rated voltage of more than 1 kV. The main characteristic of the isolating switch is that it has no arc-extinguishing capability, and can only open and close the circuit under the condition of no load current.

However, the existing indoor high-voltage isolating switch has some disadvantages in the using process, as follows:

1. when the box is used, most of the structural protection is carried out through the box body, the space in the box body is small, the operation of installation, disassembly and maintenance work is labor-consuming and troublesome, illumination light cannot be provided, and the operation is inconvenient;

2. when the switch blade is installed, the contact part of the switch blade is not tightly and firmly connected, the angle of the contact part cannot be adjusted, and the switch blade is unsafe and unreliable and is inconvenient to use.

To this end we propose a high voltage disconnector for indoor use solving the above mentioned problems.

Disclosure of Invention

Based on the defects in the use process of the device proposed in the background technology, for example, when the device is used, the structure protection is mostly protected by the box body, the space in the box body is narrow, the operation of installation, disassembly and maintenance work is labor-consuming and troublesome, the lighting light cannot be provided, and the operation is inconvenient; when the high-voltage isolating switch is installed, the contact part of the switch blade is not tightly and firmly connected, the angle of the contact part cannot be adjusted, and the high-voltage isolating switch is unsafe and unreliable and inconvenient to use.

The invention provides an indoor high-voltage isolating switch, which comprises a switch mechanism, wherein a fixing mechanism is arranged on the switch mechanism, an isolating mechanism is arranged on one side of the fixing mechanism, which is close to the switch mechanism, and an adjusting mechanism is arranged on one side of the switch mechanism, which is far away from the fixing mechanism; adjustment mechanism includes first contact, bracing piece, goes up binding post, turning block, second contact, dwang and gear, the one end of bracing piece with first contact rotates to be connected, first contact is kept away from one side of bracing piece with the connection can be dismantled to the second contact, first contact with it rotates to connect to go up binding post, the turning block is installed one side of dwang, the dwang rotates to be installed go up binding post is last, the gear mounting is in on the dwang, the dwang passes through the gear with the bracing piece rotates to be connected.

Preferably, the first contact and the second contact are both provided with grooves, the second contact is in meshed connection with the first contact, the material and the size of the first contact are the same as those of the second contact, the supporting rod is provided with a groove, a rack is installed in the groove, and the supporting rod is in meshed connection with the gear through the rack.

Preferably, isolation mechanism includes spread groove, jack, cage, lighting mechanism, connecting plug and protecting band, the jack is seted up inside the spread groove, connecting plug with jack looks adaptation, connecting plug installs on the four corners of cage, lighting mechanism installs the cage is inboard, the protecting band is installed the cage is located one side of connecting plug.

Preferably, the lighting mechanism is connected with the connecting plugs through wires, the number of the connecting plugs is the same as that of the jacks, the number of the protective belts is two, and the two protective belts are made of the same material and have the same length.

Preferably, the fixing mechanism comprises a protective shell, an installation opening, a fixing hole and a fixing plate, wherein the installation opening is formed in one side of the protective shell, the fixing plate is arranged on two sides of the protective shell, and the fixing hole is formed in the fixing plate.

Preferably, the connecting groove is formed in the fixing plate, the fixing plate is connected with the isolation cover through the connecting plug in the jack, and the length of the fixing plate is larger than the width of the isolation cover.

Preferably, switching mechanism includes plug-in strip, bushing insulator, lower binding post, lifting insulator, connecting lever, post insulator and pivot, the one end of plug-in strip is installed bushing insulator's one end, lower binding post is installed bushing insulator keeps away from the one end of plug-in strip, lifting insulator's one end is installed on the plug-in strip, the connecting lever is installed lifting insulator keeps away from the one end of plug-in strip, the pivot with the connecting lever is kept away from lifting insulator's one end is connected, it installs to go up binding post insulator's one end, post insulator keeps away from last binding post's one end is installed on the protective housing, the second contact is installed on the plug-in strip.

Preferably, the protective shell is provided with a hole, the protective shell is rotatably connected with the rotating shaft, the sleeve insulator is arranged on the protective shell, the protective shell is perpendicular to the sleeve insulator, and a radian is arranged on the sleeve insulator.

The beneficial effects of the invention are as follows:

1. the invention can be conveniently installed and disassembled by arranging the isolation mechanism and the fixing mechanism, is convenient for maintenance work to be carried out, has simple and convenient operation, saves trouble and labor, can provide reliable illumination light, is safe and reliable in protection and convenient for operation, fixedly installs the protection shell on the fixing plate in an operation area through the fixing hole, provides a reliable supporting structure foundation for the switch mechanism, is matched with the installation opening, facilitates the installation of each part of the switch mechanism, bends the sleeve insulator, installs the lower wiring terminal on the side surface of the protection shell, is convenient for installation and maintenance operation, is simple and labor-saving in operation and convenient for use, then inserts the isolation cover into the jack in the connecting groove through the connecting plug, switches on the power supply of the illumination mechanism, provides reliable illumination light for the illumination mechanism, is made of transparent organic glass material by matching with the isolation cover, and is convenient for a user to observe the working state of the switch mechanism installed on, the convenient maintenance work goes on, and simultaneously, the cooperation protecting band is got up the switching mechanism protection, prevents that switching mechanism from piling up the dust, safe and reliable.

2. The switch device is provided with the switch mechanism and the protection mechanism, so that the contact angle of the switch blade can be conveniently adjusted, the structural connection is more compact and firm, the switch device is safe and reliable and convenient to use, the rotating block is rotated through the handle, the rotating rod drives the gear to rotate, the supporting rod is limited and slides by the upper wiring terminal, the first contact is rotated by the upper wiring terminal, the angle of the first contact is changed, and the second contact is closely connected with the first contact by matching with the groove.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

Fig. 1 is a schematic structural diagram of a high-voltage isolating switch used indoors according to the invention;

fig. 2 is a schematic sectional structure diagram of an adjusting mechanism of a high-voltage isolating switch used in a room, which is provided by the invention;

fig. 3 is a partial sectional structure schematic diagram of an isolation mechanism of a high-voltage isolation switch used in a room, which is provided by the invention;

fig. 4 is a schematic view of a connection structure of an isolation mechanism and a fixing mechanism of a high-voltage isolating switch used in a room, which is provided by the invention;

fig. 5 is a schematic top view of an isolation mechanism of the high-voltage isolation switch for indoor use according to the present invention.

In the figure: 1. a switch mechanism; 101. a knife switch; 102. a bushing insulator; 103. a lower wiring terminal; 104. lifting the insulator; 105. a crank arm; 106. a post insulator; 107. a rotating shaft; 2. a fixing mechanism; 201. a protective housing; 202. an installation opening; 203. a fixing hole; 204. a fixing plate; 3. an isolation mechanism; 301. connecting grooves; 302. a jack; 303. an isolation cover; 304. an illumination mechanism; 305. a connecting plug; 306. a protective band; 4. an adjustment mechanism; 401. a first contact; 402. a support bar; 403. an upper wiring terminal; 404. rotating the block; 405. a second contact; 406. rotating the rod; 407. a gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 5, a high voltage isolator for indoor use includes a switch mechanism 1, a blade 101, a bushing insulator 102, a lower connection terminal 103, a lifting insulator 104, a crank arm 105, a post insulator 106, a rotation shaft 107, a fixing mechanism 2, a protective housing 201, a mounting opening 202, a fixing hole 203, a fixing plate 204, an isolating mechanism 3, a connecting groove 301, a jack 302, an isolating cover 303, a lighting mechanism 304, a connecting plug 305, a protective band 306, an adjusting mechanism 4, a first contact 401, a support rod 402, an upper connection terminal 403, a rotation block 404, a second contact 405, a rotation rod 406, and a gear 407.

According to the invention, as shown in fig. 1 and 2 and fig. 3, 4 and 5, the switch mechanism comprises a switch mechanism 1, a fixing mechanism 2 is arranged on the switch mechanism 1, an isolating mechanism 3 is arranged on one side of the fixing mechanism 2 close to the switch mechanism 1, and an adjusting mechanism 4 is arranged on one side of the switch mechanism 1 far away from the fixing mechanism 2; the adjusting mechanism 4 comprises a first contact 401, a support rod 402, an upper wiring terminal 403, a rotating block 404, a second contact 405, a rotating rod 406 and a gear 407, one end of the support rod 402 is rotatably connected with the first contact 401, one side of the support rod 402, which is far away from the first contact 401, is detachably connected with the second contact 405, the first contact 401 is rotatably connected with the upper wiring terminal 403, the rotating block 404 is installed on one side of the rotating rod 406, the rotating rod 406 is rotatably installed on the upper wiring terminal 403, the gear 407 is installed on the rotating rod 406, the rotating rod 406 is rotatably connected with the support rod 402 through the gear 407, and the rotating block 404 is rotated through a handle on the rotating block 404 to enable the rotating rod 406 to rotate along with the rotating block 404 and simultaneously drive the gear 407 on the rotating rod 406 to rotate to match a rack in a groove on the support rod 402, the support rod 402 is made to slide on the connecting terminal 403, so that the first contact 401 can rotate freely by means of the upper connecting terminal 403, the angle of the first contact 401 is changed, and the second contact 405 and the first contact 401 are tightly connected by matching with the grooves on the first contact 401 and the second contact 405, and therefore the contact structure is safe and reliable.

In the invention, as shown in fig. 1 and 2, grooves are formed in the first contact 401 and the second contact 405, the second contact 405 is in meshing connection with the first contact 401, the material and the size of the first contact 401 are the same as those of the second contact 405, a groove is formed in the support rod 402, a rack is installed in the groove, the support rod 402 is in meshing connection with the gear 407 through the rack, the first contact 401 and the second contact 405 are made of copper metal, the use is convenient, the contact area of the first contact 401 and the second contact 405 is increased, and the safety and reliability are realized.

In the present invention, as shown in fig. 1 and 3 and fig. 4 and 5, the isolation mechanism 3 includes a connection groove 301, a jack 302, an isolation cover 303, an illumination mechanism 304, a connection plug 305, and a protection band 306, the jack 302 is opened inside the connection groove 301, the connection plug 305 is adapted to the jack 302, the connection plug 305 is installed at four corners of the isolation cover 303, the illumination mechanism 304 is installed inside the isolation cover 303, the protection band 306 is installed at one side of the isolation cover 303 at the connection plug 305, the illumination mechanism 304 is an LED lamp, by inserting the connection plug 305 on the isolation cover 303 into the jack 302, and limiting the connection plug 305 by matching with the connection groove 301, the structure is tightly and firmly connected, and the power supply of the illumination mechanism 304 is switched on, so that the illumination mechanism 304 provides reliable illumination light, and is convenient to use, and the isolation cover 303 is made of transparent organic glass material, the convenience is at the outside operational aspect who observes cubical switchboard mechanism 1 of structure, provides reliable protection simultaneously, and cooperation protecting band 306 forms seal structure, prevents that the dust from piling up in cubical switchboard mechanism 1 inside, guarantees cubical switchboard mechanism 1 normal operating, convenient to use.

In the invention, as shown in fig. 3, 4 and 5, the lighting mechanism 304 is connected with the connecting plugs 305 through wires, the number of the connecting plugs 305 is the same as that of the jacks 302, the number of the protective belts 306 is two, the two protective belts 306 are made of the same material and have the same length, so that the structural connection is tight and reliable, and the protective belts 306 are matched to be rubber belts to provide safety protection for the isolation cover 303.

In the present invention, as shown in fig. 1, 2 and 5, the fixing mechanism 2 includes a protective housing 201, an installation opening 202, a fixing hole 203, and a fixing plate 204, the installation opening 202 is disposed on one side of the protective housing 201, the fixing plate 204 is mounted on two sides of the protective housing 201, the fixing hole 203 is disposed on the fixing plate 204, and the fixing plate 204 is fixed at a designated position by a screw through the fixing hole 203, and the protective housing 201 is fixed, so as to provide a support and an installation base for the structural component, and the installation opening 202 is further matched, so as to facilitate the installation, removal, inspection and repair operations of each component, and meanwhile, the fixing plate 204 is connected with an external power supply through a wire, so as to provide power for the illumination mechanism 304, and the present invention is simple in operation.

In the present invention, as shown in fig. 3, 4 and 5, the connection groove 301 is formed on the fixing plate 204, the fixing plate 204 is connected to the isolation cover 303 through the connection plug 305 in the insertion hole 302, the length of the fixing plate 204 is greater than the width of the isolation cover 303, so that the fixing plate 204 is tightly connected to the isolation cover 303, and the isolation cover 303 protects the switch mechanism 1 installed on the protective housing 201, which is safe, reliable and convenient to operate.

In the present invention, as shown in fig. 1, 2 and 3, the switch mechanism 1 includes a switch blade 101, a bushing insulator 102, a lower connection terminal 103, a lifting insulator 104, a crank arm 105, a post insulator 106 and a rotation shaft 107, one end of the switch blade 101 is installed at one end of the bushing insulator 102, the lower connection terminal 103 is installed at one end of the bushing insulator 102 away from the switch blade 101, one end of the lifting insulator 104 is installed on the switch blade 101, the crank arm 105 is installed at one end of the lifting insulator 104 away from the switch blade 101, the rotation shaft 107 is connected to one end of the crank arm 105 away from the lifting insulator 104, the upper connection terminal 403 is installed at one end of the post insulator 106, one end of the post insulator 106 away from the upper connection terminal 403 is installed on the protective housing 201, and the second contact 405 is installed on the switch blade 101, the switch mechanism 1 is any one of GN series indoor high-voltage isolating switches such as GN19, GN25, GN28, GN30 and the like, is arranged on a protective shell 201 through a sleeve insulator 102, a lower connecting terminal 103, a post insulator 106, a rotating shaft 107 and the like, and is matched with a knife switch 101, a lifting insulator 104, a crank arm 105 and the like to form an indoor high-voltage isolating switch; then when the line stops and transmits power, the isolating switches must be pulled and closed in sequence, when the power cut operation is performed, the circuit breaker must be pulled first, the line side isolating switch is pulled later, then the bus side isolating switch is pulled, the power transmission operation sequence is opposite to the power cut sequence, meanwhile, an electric, electromagnetic and mechanism locking device for preventing misoperation is installed among the isolating switch, the switch blade 101 and the circuit breaker, when the switching operation is performed, the switching operation must be performed in sequence, the switch blade 101 moves along with the crank arm 105 on the rotating shaft 107 by means of the sleeve insulator 102, and the switch blade 101 pushes the second contact 405 to the first contact 401, so that the circuit breaker is safe, reliable and convenient to operate.

In the present invention, as shown in fig. 1 and 3, a hole is formed in the protective housing 201, the protective housing 201 is rotatably connected to the rotating shaft 107, the bushing insulator 102 is mounted on the protective housing 201, the protective housing 201 is perpendicular to the bushing insulator 102, and a radian is formed in the bushing insulator 102, so that the installation and the removal are convenient, and the operation is convenient.

In the working principle, in the using process of the invention, firstly, the fixing plate 204 is fixed at a designated position by screws through the fixing holes 203, the protective shell 201 is fixed, the support and the installation foundation are provided for the structural components, then the installation opening 202 is matched to facilitate the installation, disassembly and repair operation of the components, meanwhile, the fixing plate 204 is connected with an external power supply through a lead so as to provide power for the illuminating mechanism 304, the operation is simple and the use is convenient, then the connecting plug 305 on the isolation cover 303 is inserted into the jack 302 to limit the connecting plug 305 by matching with the connecting groove 301, the structure is connected tightly and firmly, the power supply of the illuminating mechanism 304 is switched on, the illuminating mechanism 304 provides reliable illuminating light rays and is convenient to use, meanwhile, the isolation cover 303 is made of transparent organic glass, the working condition of the switch mechanism 1 is convenient to observe outside the structure, and simultaneously, the reliable protection, the protection belt 306 is matched to form a sealing structure to prevent dust from accumulating in the switch mechanism 1, so as to ensure the normal operation of the switch mechanism 1 and facilitate the use, meanwhile, the parts such as the bushing insulator 102, the lower wiring terminal 103, the post insulator 106, the rotating shaft 107 and the like are arranged on the protection shell 201, the parts such as the knife switch 101, the lifting insulator 104, the crank arm 105 and the like are matched to form an indoor high-voltage isolating switch, then the rotating block 404 is rotated through a handle on the rotating block 404, the rotating block 406 rotates along with the rotating block 404, simultaneously, the gear 407 on the rotating block 406 is driven to rotate, the rack in the groove on the supporting rod 402 is matched, the supporting rod 402 slides on the wiring terminal 403, the first contact 401 freely rotates by virtue of the upper wiring terminal 403, so as to change the angle of the first contact 401, firstly, when the switch mechanism 1 is operated, the circuit breaker, to prevent the isolating switch from being pulled and closed under load; then when the line stops and transmits power, the isolating switches must be pulled and closed in sequence, when the power cut operation is performed, the circuit breaker must be pulled first, the line side isolating switch is pulled later, then the bus side isolating switch is pulled, the power transmission operation sequence is opposite to the power cut sequence, meanwhile, an electric, electromagnetic and mechanism locking device for preventing misoperation is installed among the isolating switch, the knife switch 101 and the circuit breaker, when the back brake operation is performed, the operation must be performed in sequence, the knife switch 101 moves along with the crank arm 105 on the rotating shaft 107 through the sleeve insulator 102, the knife switch 101 pushes the second contact 405 to the first contact 401, and meanwhile, the second contact 405 and the first contact 401 are matched with the grooves on the first contact 401 and the second contact 405, so that the second contact 405 and the first contact 401 are tightly connected, and the circuit breaker is safe, reliable and convenient to operate.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A high voltage isolator for indoor, including cubical switchboard mechanism (1), its characterized in that: a fixing mechanism (2) is installed on the switch mechanism (1), an isolating mechanism (3) is installed on one side, close to the switch mechanism (1), of the fixing mechanism (2), and an adjusting mechanism (4) is installed on one side, far away from the fixing mechanism (2), of the switch mechanism (1);

adjustment mechanism (4) include first contact (401), bracing piece (402), go up binding post (403), turning block (404), second contact (405), dwang (406) and gear (407), the one end of bracing piece (402) with first contact (401) rotate to be connected, first contact (401) are kept away from one side of bracing piece (402) with second contact (405) can dismantle the connection, first contact (401) with go up binding post (403) and rotate to be connected, turning block (404) are installed one side of dwang (406), dwang (406) are rotated and are installed go up binding post (403) on, gear (407) are installed on dwang (406), dwang (406) pass through gear (407) with bracing piece (402) rotate to be connected.

2. The high-voltage isolating switch for the indoor use according to claim 1, wherein a groove is formed in each of the first contact (401) and the second contact (405), the second contact (405) is in meshed connection with the first contact (401), the first contact (401) is made of the same material and the same size as the second contact (405), a groove is formed in the support rod (402), a rack is installed in the groove, and the support rod (402) is in meshed connection with the gear (407) through the rack.

3. The high voltage isolating switch for indoor use according to claim 1, wherein the isolating mechanism (3) comprises a connecting groove (301), a jack (302), an isolating cover (303), a lighting mechanism (304), a connecting plug (305) and a guard band (306), the jack (302) is opened inside the connecting groove (301), the connecting plug (305) is matched with the jack (302), the connecting plug (305) is installed on four corners of the isolating cover (303), the lighting mechanism (304) is installed inside the isolating cover (303), and the guard band (306) is installed on one side of the isolating cover (303) on the connecting plug (305).

4. A high voltage isolation switch for indoor use according to claim 3, characterized in that the lighting mechanism (304) is connected with the connecting plugs (305) through wires, the number of the connecting plugs (305) is the same as that of the jacks (302), the number of the guard bands (306) is two, and the material and the length of the two guard bands (306) are the same.

5. A high voltage disconnector for indoor use according to claim 3, characterized in that said fixing means (2) comprises a protective casing (201), a mounting opening (202), a fixing hole (203), a fixing plate (204), said mounting opening (202) being opened on one side of said protective casing (201), said fixing plate (204) being mounted on both sides of said protective casing (201), said fixing hole (203) being opened on said fixing plate (204).

6. The high voltage isolating switch for indoor use according to claim 5, wherein said connecting slot (301) is opened on said fixing plate (204), said fixing plate (204) is connected with said isolating cover (303) through said connecting plug (305) in said jack (302), and said fixing plate (204) has a length greater than a width of said isolating cover (303).

7. The high-voltage isolating switch for indoor use according to claim 5, wherein the switch mechanism (1) comprises a switch blade (101), a bushing insulator (102), a lower connection terminal (103), a lifting insulator (104), a connecting lever (105), a post insulator (106) and a rotating shaft (107), one end of the switch blade (101) is installed at one end of the bushing insulator (102), the lower connection terminal (103) is installed at one end of the bushing insulator (102) far away from the switch blade (101), one end of the lifting insulator (104) is installed on the switch blade (101), the connecting lever (105) is installed at one end of the lifting insulator (104) far away from the switch blade (101), the rotating shaft (107) is connected with one end of the connecting lever (105) far away from the lifting insulator (104), and the upper connection terminal (403) is installed at one end of the post insulator (106), the post insulator (106) is far away from one end of the upper wiring terminal (403) and is installed on the protective shell (201), and the second contact (405) is installed on the knife switch (101).

8. The high voltage isolating switch for indoor use according to claim 7, wherein the protective housing (201) is provided with a hole, the protective housing (201) is rotatably connected with the rotating shaft (107), the bushing insulator (102) is mounted on the protective housing (201), the protective housing (201) and the bushing insulator (102) are perpendicular to each other, and the bushing insulator (102) is provided with a radian measure.