CN210535578U

CN210535578U - Anti-leakage low-temperature-resistant double-C-shaped pipe sulfur hexafluoride gas density relay

Info

Publication number: CN210535578U
Application number: CN201922134550.3U
Authority: CN
Inventors: 林亚光; 张平福; 吴起昌; 程俊海; 张冬雁
Original assignee: PINGDINGSHAN TIANQIN INSTRUMENT CO LTD
Current assignee: PINGDINGSHAN TIANQIN INSTRUMENT CO LTD
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-05-15
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a two C type pipe sulfur hexafluoride gas density relays that antiseep is low temperature resistant relates to high-low voltage equipment field. The utility model provides a two C type pipe sulfur hexafluoride gas density relay that antiseep is low temperature resistant, is including setting up watch core and two C type pipe mechanisms in the sulfur hexafluoride gas density relay watchcase to and the prevention of seepage oil wiring mechanism of setting on the watchcase, the beneficial effects of the utility model are that: the design of the wiring terminal on the meter shell is changed to realize long-term use without oil leakage, the double C-shaped pipes are arranged in the meter shell to improve the shock resistance and temperature change resistance of the density relay, the sulfur hexafluoride gas density relay can be used for a long time without oil leakage, and the sulfur hexafluoride gas density relay has the technical effects of strong shock resistance, temperature change resistance, small size, easiness in overhauling, mounting and dismounting and the like.

Description

Anti-leakage low-temperature-resistant double-C-shaped pipe sulfur hexafluoride gas density relay

Technical Field

The utility model relates to a high-low voltage equipment field, more specifically say, relate to a two C type pipe sulfur hexafluoride gas density relays that antiseep is low temperature resistant.

Background

The high-voltage switch is an important electrical device in an electric power system, the high-voltage switch is widely used in a sulfur hexafluoride sulfur gas density relay, and in order to improve the resistance of the high-voltage switch, silicone oil is generally filled in the relay, and the sealing performance of the oil-filled sulfur hexafluoride sulfur gas density relay is directly related to whether the whole device can safely operate.

The temperature of the working environment of the sulfur hexafluoride gas density relay changes, the monitoring precision of the sulfur hexafluoride gas density relay can be influenced by the temperature changes, a single C-shaped pipe is arranged in a shell of the traditional sulfur hexafluoride gas density relay, and the displacement deviation of the single C-shaped pipe caused by the temperature changes in the long-term use process further causes the influence of the ambient temperature on the finished product density display value.

The conventional junction box is arranged on one side of a sulfur hexafluoride gas density relay, a lead-out port of a lead corresponds to a wiring section, the wiring section is usually sealed with a meter shell through a rubber sealing ring, the problem of leakage of silicon oil in the meter shell is easily caused when the rubber sealing ring is aged along with the lapse of the service time of the sulfur hexafluoride gas density relay, potential safety hazards are brought to high-voltage switch equipment, the silicon oil has the shockproof effect on one hand, the shock resistance of the high-voltage switch equipment is reduced due to oil leakage, the defects of dead pointer blocking, standard deviation and the like can occur after the switch is switched on and off, and on the other hand, the oil leakage can cause the oxidation of an electric contact, so that the.

When the lead between the junction box and the sulfur hexafluoride gas density relay is connected in a welding mode, a relatively large working cavity needs to be preset in the junction box during installation so as to facilitate operation of a welding process, and meanwhile, operation steps are more time-consuming and complex when the welding connection mode is maintained, disassembled and assembled.

Therefore, a sulfur hexafluoride gas density relay which can not leak oil after being used for a long time, has strong shock resistance and temperature change resistance, is small in size and is easy to overhaul and disassemble is urgently needed.

Disclosure of Invention

1. Technical problem to be solved

An object of the utility model is to provide a two C type pipe sulfur hexafluoride gas density relays that antiseep is low temperature resistant, realize long-term the use and do not seep oil through changing the design of binding post on the watchcase, improve density relay's shock resistance and anti temperature variation's performance through set up two C type pipes in the watchcase, realize sulfur hexafluoride gas density relay and use for a long time and do not seep oil, have stronger shock resistance, anti temperature variation, small in size and overhaul technical effect such as the dismouting is easy simultaneously.

2. Technical scheme

An anti-leakage low-temperature-resistant double-C-shaped pipe sulfur hexafluoride gas density relay comprises a meter core and a double-C-shaped pipe mechanism which are arranged in a meter shell of the sulfur hexafluoride gas density relay, and an oil-leakage-proof wiring mechanism which is arranged on the meter shell, wherein a joint for air inlet is arranged at the lower part of the meter shell, one end of the double-C-shaped pipe mechanism is connected with the joint, the other end of the double-C-shaped pipe mechanism is connected with the meter core through a cushion block, a pointer is arranged on the meter core, the double-C-shaped pipe mechanism comprises two C-shaped pipes A and C-shaped pipes B which are arranged side by side, sealing covers A and sealing covers B which are arranged at two ends of the two C-shaped pipes, the C-shaped pipes B are inflated through the joints, the C-shaped pipes A are sealed pipes which are isolated from an inner cavity of the meter shell and are inflated through inflation pipes, one end of the C, the other end of the C-shaped pipe A is sealed through a sealing cover A, and the sealing cover A is connected with a gear mechanism on the watch core through a connecting sheet and an adjusting connecting rod which are sequentially connected so as to drive the watch hand to swing.

Preferably, prevention of seepage oily wiring mechanism including the terminal that sets gradually, locating plate and picture peg, the picture peg is connected with the terminal box through two outer hexagonal silk tubes, the one end of terminal is passed the watchcase and is connected with the electric contact on the watch core carries out the electricity, the other end of terminal passes through-hole on the locating plate and is connected with the connecting seat one end of setting on the picture peg electricity, the other end of connecting seat extends backward and stretches into in the terminal box and carries out the electricity with the electric contact in the terminal box and be connected.

Preferably, the terminal is a specially-made seven-core metal glass sintered terminal.

Preferably, the top of the watchcase is provided with an anti-backflow oil hole for preventing silicone oil from being extruded under pressure or heat.

Preferably, the positioning plate is provided with a through hole, one side of the positioning plate is fastened on the outer surface of the watch case through a bolt, and one side of the positioning plate, which is in contact with the watch case, is an arc surface and is tightly attached to the outer surface of the watch case.

Preferably, the terminal is welded to the watch case.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

first, the utility model relates to a two C type pipe sulfur hexafluoride gas density relays that antiseep is low temperature resistant, through special two C type pipe mechanisms, change into present two C type pipes by original single C type pipe, and the C type pipe that adds is independent sealed for the displacement volume deviation that original C type pipe leads to because of temperature variation is compensated, thereby play the influence that the finished product density value that shows receives the ambient temperature change in the allowed range, increased sulfur hexafluoride gas density relay's anti temperature variation performance.

Secondly, the utility model relates to a two C type pipe sulfur hexafluoride gas density relays that antiseep is low temperature resistant, through the setting of prevention of seepage oily wiring mechanism, with the locating plate setting between terminal wiring end and picture peg, changed the tradition and needed the middle lug weld connected mode of binding post and terminal box, quick accurate plug is connected, makes things convenient for sulfur hexafluoride gas density relay's dismouting and maintenance, welds the terminal on the watchcase, has reduced the risk of watchcase oil leak.

To sum up, the utility model relates to a two C type pipe sulfur hexafluoride gas density relays that antiseep is low temperature resistant realizes using for a long time and not seeping oil through changing the design of binding post on the watchcase, improves density relay's shock resistance and anti temperature variation's performance through set up two C type pipes in the watchcase, realizes sulfur hexafluoride gas density relay and uses for a long time and not seeping oil, has stronger shock resistance, anti temperature variation, small in size and overhauls technical effect such as the dismouting is easy simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the oil-leakage-preventing wiring mechanism of the present invention;

FIG. 3 is a schematic structural view of a double C-shaped pipe mechanism of the present invention;

the reference numbers in the figures illustrate: 1 watchcase, 101 connectors, 2 oil holes, 3 oil seepage prevention wiring mechanisms, 301 sections, 302 positioning plates, 303 plug boards, 304 outer hexagonal screw barrels, 305 junction boxes, 4 watch cores, 401 watch hands, 402 electric contacts, 403 cushion blocks, 5 double C-shaped pipe mechanisms, 501 sealing covers A, 502 sealing covers B, 503C-shaped pipes A, 504C-shaped pipes B, 505 connecting pieces, 506 adjusting connecting rods and 507 inflation pipes.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to the drawings, the utility model provides a technical solution:

an anti-leakage low-temperature-resistant double-C-shaped pipe sulfur hexafluoride gas density relay comprises a meter core 4 and a double-C-shaped pipe mechanism 5 which are arranged in a meter shell 1 of the sulfur hexafluoride gas density relay, and an oil-seepage-preventing wiring mechanism 3 which is arranged on the meter shell 1, wherein a connector 101 for air inflow is arranged at the lower part of the meter shell 1, one end of the double-C-shaped pipe mechanism 5 is connected with the connector 101, the other end of the double-C-shaped pipe mechanism 5 is connected with the meter core 4 through a cushion block 403, a meter pointer 401 is arranged on the meter core 4, the double-C-shaped pipe mechanism 5 comprises two C-shaped pipes A503 and B504 which are arranged side by side, and a sealing cover A501 and a sealing cover B502 which are arranged at two ends of the two C-shaped pipes, the C-shaped pipe B504 is inflated through the connector 101, the C-shaped pipe A503 is a sealing pipe which is isolated from the inner cavity of the meter shell 1, meanwhile, a sealing cover B502 fixes one end of a C-shaped pipe A503, the other end of the C-shaped pipe A503 is sealed through a sealing cover A501, and the sealing cover A501 is connected with a gear mechanism on the watch core 4 through a connecting sheet 505 and an adjusting connecting rod 506 which are sequentially connected so as to drive the watch hand 401 to swing.

Furthermore, prevention of seepage oil binding mechanism 3 including terminal 301, locating plate 302 and picture peg 303 that set gradually, picture peg 303 is connected with terminal box 305 through two outer hexagonal silk tubs 304, the one end of terminal 301 passes watchcase 1 and is connected with electric contact 402 on the watch core 4 electrically, the other end of terminal 301 passes through the through-hole on the locating plate 302 and is connected with the connecting seat one end that sets up on picture peg 303 electrically, the other end of connecting seat extends backward and stretches into in terminal box 305 and is connected with the electric contact in terminal box 305 electrically.

Further, the terminal 301 is a special seven-core metal glass sintered terminal.

Further, the top of the watchcase 1 is provided with an anti-backflow oil hole 2 for preventing silicone oil from being extruded under pressure or heat.

Furthermore, a through hole is formed in the positioning plate 302, one side of the through hole is fastened on the outer surface of the watch case 1 through a bolt, and one side of the positioning plate 302 contacting with the watch case 1 is an arc surface and is tightly attached to the outer surface of the watch case 1.

Further, terminal 301 is welded to case 1.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a two C type pipe sulfur hexafluoride gas density relays of antiseep low temperature resistant, is including setting up table core (4) and two C type pipe mechanisms (5) in sulfur hexafluoride gas density relay watchcase (1) to and prevention of seepage oily wiring mechanism (3) of setting on watchcase (1), the lower part of watchcase (1) is provided with joint (101) that are used for admitting air, and the one end of two C type pipe mechanisms (5) links to each other with joint (101), and the other end is connected with table core (4) through a cushion (403), install gauge needle (401) on table core (4), its characterized in that: the double C-shaped pipe mechanism (5) comprises two C-shaped pipes A (503) and B (504) which are arranged side by side, and a cover A (501) and a cover B (502) which are arranged at two ends of the two C-shaped pipes, the C-shaped pipe B (504) is inflated through a joint (101), the C-shaped pipe A (503) is a sealing pipe, is isolated from the inner cavity of the watch case (1) and is inflated (507) through an inflation tube, one end of a C-shaped tube B (504) is fixedly arranged on the joint (101), the other end is sealed through a sealing cover B (502), meanwhile, a sealing cover B (502) fixes one end of the C-shaped pipe A (503), the other end of the C-shaped pipe A (503) is sealed by the sealing cover A (501), the cover A (501) is connected with the adjusting connecting rod (506) through a connecting piece (505), is connected with a gear mechanism on the watch core (4) to drive the watch hand (401) to swing.

2. The sulfur hexafluoride gas density relay of claim 1, wherein said double C-shaped tubes are made of a material selected from the group consisting of: prevention leakage oil wiring mechanism (3) including terminal (301), locating plate (302) and picture peg (303) that set gradually, picture peg (303) are connected with terminal box (305) through two outer hexagonal silk section of thick bamboos (304), the one end of terminal (301) is passed watchcase (1) and is connected with electric contact (402) on table core (4) are electrically connected, the other end of terminal (301) is passed through-hole on locating plate (302) and is connected with the connecting seat one end of setting on picture peg (303) is electrically connected, the other end of connecting seat extends backward and stretches into in terminal box (305) and is connected with the electric contact in terminal box (305) electrically.

3. The sulfur hexafluoride gas density relay of claim 2, wherein said double C-shaped tubes are made of a material selected from the group consisting of: the terminal (301) is a specially-made seven-core metal glass sintered terminal.

4. The sulfur hexafluoride gas density relay of claim 1, wherein said double C-shaped tubes are made of a material selected from the group consisting of: the top of the watchcase (1) is provided with an anti-backflow oil filling hole (2) for preventing silicone oil from being extruded under pressure or heat.

5. The sulfur hexafluoride gas density relay of claim 2, wherein said double C-shaped tubes are made of a material selected from the group consisting of: the positioning plate (302) is provided with a through hole, one side of the positioning plate is fastened on the outer surface of the watchcase (1) through a bolt, and one side of the positioning plate (302) contacting the watchcase (1) is an arc surface and is tightly attached to the outer surface of the watchcase (1).

6. The sulfur hexafluoride gas density relay of claim 2, wherein said double C-shaped tubes are made of a material selected from the group consisting of: the terminal (301) is welded to the watch case (1).