CN114110417A - Charging and discharging fixing clamp for GIS combined electrical apparatus - Google Patents
Charging and discharging fixing clamp for GIS combined electrical apparatus Download PDFInfo
- Publication number
- CN114110417A CN114110417A CN202111344158.7A CN202111344158A CN114110417A CN 114110417 A CN114110417 A CN 114110417A CN 202111344158 A CN202111344158 A CN 202111344158A CN 114110417 A CN114110417 A CN 114110417A
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- CN
- China
- Prior art keywords
- clamp plate
- rod
- arm
- propelling
- guide
- 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.)
- Pending
Links
- 238000007599 discharging Methods 0.000 title abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 210000001503 joint Anatomy 0.000 abstract description 5
- 239000003292 glue Substances 0.000 abstract description 4
- 229910018503 SF6 Inorganic materials 0.000 description 9
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 9
- 230000035882 stress Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 210000004247 hand Anatomy 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229960000909 sulfur hexafluoride Drugs 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
Abstract
The invention provides a charging and discharging fixing clamp for a GIS combined electrical apparatus, which comprises a clamp plate A, a clamp plate B, guide rods, a pushing rod, a handle, a force application rod, a pushing sheet and a releasing sheet, wherein the clamp plate A and the clamp plate B are both flat plate structures with U-shaped open slots, two groups of guide rods perpendicular to the clamp plate A are fixedly arranged on the left side surface of the clamp plate A, the left end of each group of guide rods is provided with the handle, the clamp plate B is arranged between the clamp plate A and the handle, the clamp plate B is parallel to the clamp plate A, the two groups of guide rods penetrate through the clamp plate B, the guide rods are sleeved with springs A, and the springs A are positioned between the clamp plate A and the clamp plate B. The invention utilizes the principle similar to a glue gun to realize the quick butt joint and fixation of the inflation head and the inflation inlet, the butt joint process is safe and reliable, the inflation and deflation are labor-saving and quick, the whole clamp is simple to operate and convenient to carry, and the work efficiency of the inflation and deflation of SF6 can be greatly improved.
Description
Technical Field
The invention relates to a power maintenance device, in particular to a maintenance device of a GIS combined electrical apparatus, and specifically relates to a charging and discharging gas fixing clamp of the GIS combined electrical apparatus.
Background
The sulfur hexafluoride enclosed type combined electrical apparatus is internationally called Gas Insulated Switchgear (Gas Insulated Switchgear) and is abbreviated as GIS. The primary equipment except the transformer in a transformer substation, including a circuit breaker, an isolating switch, a grounding switch, a voltage transformer, a current transformer, a lightning arrester, a bus, a cable terminal, an inlet and outlet bushing and the like, is organically combined into a whole through optimized design; the GIS combined electrical apparatus adopts sulfur hexafluoride gas with excellent insulating property as an insulating and arc extinguishing medium, so that the volume of a transformer substation can be greatly reduced, miniaturization is realized, and the GIS combined electrical apparatus has the advantages of easy maintenance and high safety performance, and is gradually and widely applied to modern electric power construction.
The daily maintenance of the GIS combined electrical appliance mainly ensures the air pressure and the air tightness of the gas. Taking a ZF12-126(L) type combined electrical apparatus as an example, SF6 in the equipment is easy to leak due to aging of sealing rings of various parts; the circuit breaker is locked due to low SF6 pressure, and the circuit breaker cannot be normally switched on and off when equipment fails; in another case, even if the circuit breaker is not locked, under the condition of low SF6 pressure, arc can not be effectively extinguished when the combined electric circuit breaker and the disconnecting switch are opened and closed, and equipment explosion can be caused in serious cases.
At present, when SF6 gas is supplied to the GIS combined electrical apparatus, due to the design of the gas charging opening, the gas charging head needs to be aligned with the gas charging opening, and then the gas charging head is firmly fixed on the gas charging opening by three screws; in the process of fastening the screws, each screw of the three screws needs to be twisted for one circle, and force is circularly applied to the three screws in a balanced manner (otherwise, the inclination angle of the inflation head is too large, and the seal of the inflation port can be damaged after the inflation head enters the inflation port), so that the inner part of the inflation head is pushed in place, and the air can be supplied only when the air path is smooth; in the process of installing and removing the inflation head, because the inflation head and the inflation port are sealing devices, the tolerance is small, and the situation that the screws cannot be detached, even the screws are broken and slide due to slight unbalance of the three screws is easily caused, so that the working time is prolonged or the next air supply is influenced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a fixing clamp for charging and discharging of a GIS combined apparatus, which realizes the quick butt joint and fixation of an inflation head and an inflation inlet by using the principle similar to a glue gun under the condition of not changing the structure of the inflation inlet and the inflation head of the GIS combined apparatus, has safe and reliable butt joint process, labor-saving and quick charging and discharging, is simple to operate and convenient to carry, and can greatly improve the work efficiency of SF6 charging and discharging.
In order to achieve the purpose, the invention adopts the following technical scheme:
a GIS combined electrical apparatus fills gassing fixed fixture, including splint A, splint B, guide bar, propulsion pole, handle, application of force pole, propulsion piece and release piece, splint A, splint B be the flat structure that has U type open slot, be provided with two sets of guide bars perpendicular to splint A at splint A's left surface fixedly, the left end of each set of guide bar all is equipped with a handle, splint B set up between splint A and handle, splint B is on a parallel with splint A, and two sets of guide bars all pass splint B, the guide bar on all overlap and be equipped with spring A, spring A all is located between splint A and splint B;
the handle comprises a support and a handheld part, the support is composed of an upper arm, a lower arm, a left arm and a right arm, the right arm is connected with the guide rod, a guide hole A is formed in the middle of the right arm, a guide hole B is formed in the middle of the left arm, the push rod penetrates through the guide hole A and the guide hole B, and the right end of the push rod is used for abutting against the clamping plate B; the hand-held part is fixedly connected to the left end of the lower part of the lower arm;
the propelling piece is positioned between the left arm and the right arm of the bracket, sleeved on the propelling rod and used for driving the propelling rod to move towards the right side; a spring B is arranged between the propelling piece and the right arm, and the spring B is sleeved on the propelling rod and used for resetting the propelling piece;
the middle part of the stress application rod is hinged on the lower arm, and the upper end of the stress application rod is abutted against the left side of the propelling piece and is used for driving the propelling piece to move towards the right side;
the left end of the upper arm of the support is fixedly connected with a hinge seat, the middle part of the release sheet is sleeved on the push rod, and the upper end of the release sheet is hinged on the hinge seat; the hinge seat is provided with a hinge hole with the axis vertical to the push rod, and one side of the hinge hole is provided with a limiting surface with the lower end inclined to the left for limiting the rotation angle of the release sheet; and a spring C is arranged between the release sheet and the right arm of the support, and the spring C is sleeved on the push rod and used for resetting the release sheet.
The opening directions of the U-shaped open slot of the splint A and the U-shaped open slot of the splint B are consistent, the two groups of guide rods are respectively positioned at two sides of the U-shaped open slot, and the number of each group of guide rods is two; the upper end and the lower end of the right arm of the bracket are respectively connected with the same group of guide rods.
The right end of the guide rod is provided with an external thread and is fixed on the clamping plate A through a nut, and the left end of the guide rod is welded or in threaded connection with the right arm of the support.
The right end of the propelling rod is fixedly connected with a propelling disc, and the propelling disc is circular.
The invention has the beneficial effects that: the invention uses the driving principle of a glass glue gun for reference, uses two clamping plates to butt joint and fix the inflation inlet and the inflation head of the GIS combined electrical apparatus, has stable and safe connection process due to the use of two-side propulsion driving, does not easily incline the inflation head, does not damage the inflation inlet and the inflation head, and can quickly separate the inflation head from the inflation inlet after inflation is finished, so that the combined electrical apparatus SF6 can be quickly and safely inflated and deflated, and the invention has the characteristics of high use efficiency and good safety performance.
Drawings
Fig. 1 is a top view of the overall structure of the present invention.
Fig. 2 is a front view of the overall structure of the present invention.
Fig. 3 is a front view of the handle and the hinge base.
Fig. 4 is a schematic perspective view of the clamp a, the clamp B and the guide rod.
Fig. 5 is a schematic diagram of the connection of the present invention to a device.
In the figure: 1. the device comprises splints A, 2, splints B, 3, a guide rod, 4, a pushing rod, 5, a handle, 6, a stressing rod, 7, a pushing sheet, 8, a releasing sheet, 9, springs A, 10, springs B, 11, springs C,12, a pushing disc, 13, an inflation inlet, 14 and an inflation head;
51. support, 52, handheld portion, 53, articulated seat, 511, upper arm, 512, lower arm, 513, left arm, 514, right arm, 531, articulated hole, 532, spacing face, 533, guiding hole B, 541, guiding hole A.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, a fixing clamp for charging and discharging air of a GIS (geographic information system) combined apparatus comprises a clamping plate a1, a clamping plate B2, a guide rod 3, a push rod 4, a handle 5, a force applying rod 6, a push plate 7 and a release plate 8, wherein the clamping plate a1 and the clamping plate B2 are both of a flat plate structure with a U-shaped open slot, two groups of guide rods 3 perpendicular to a clamping plate a1 are fixedly arranged on the left side surface of the clamping plate a1, the left end of each group of guide rods 3 is provided with the handle 5, the clamping plate B2 is arranged between the clamping plate a1 and the handle 5, the clamping plate B2 is parallel to the clamping plate a1, the two groups of guide rods 3 penetrate through the clamping plate B2, the guide rods 3 are both sleeved with springs a9, and the springs a9 are both located between the clamping plate a1 and the clamping plate B2;
the handle 5 comprises a bracket 51 and a handheld part 52, the bracket 51 is composed of an upper arm 511, a lower arm 512, a left arm 513 and a right arm 514, wherein the right arm 514 is connected with the guide rod 3, a guide hole A541 is arranged in the middle of the right arm 514, a guide hole B533 is arranged in the middle of the left arm 513, the push rod 4 is arranged in the guide hole A541 and the guide hole B533 in a penetrating manner, and the right end of the push rod is used for abutting against a clamping plate B2; the hand-held part 52 is fixedly connected with the left end of the lower part of the lower arm 512;
the propelling piece 7 is positioned between the left arm 513 and the right arm 514 of the bracket 51, sleeved on the propelling rod 4 and used for driving the propelling rod 4 to move towards the right side; a spring B10 is arranged between the propelling piece 7 and the right arm 514, and the spring B10 is sleeved on the propelling rod 4 and used for resetting the propelling piece 7;
the middle part of the stress application rod 6 is hinged on the lower arm 512 of the bracket 51, and the upper end of the stress application rod 6 is abutted against the left side of the propelling piece 7 and is used for driving the propelling piece 7 to move towards the right side;
the left end of the upper arm 511 of the bracket 51 is fixedly connected with a hinged seat 53, the middle part of the release sheet 8 is sleeved on the push rod 4, and the upper end of the release sheet is hinged on the hinged seat 53; the hinge seat 53 is provided with a hinge hole 531 the axis of which is vertical to the push rod 4, and one side of the hinge hole 531 is provided with a limiting surface 532 the lower end of which inclines leftwards, so as to limit the rotating angle of the release sheet 8; a spring C11 is arranged between the release sheet 8 and the right arm 514, and the spring C11 is sleeved on the push rod 4 and used for resetting the release sheet 8.
The structure uses for reference the driving principle of the glass glue gun, but is slightly different, and the specific introduction is as follows:
when the lower end of the boosting rod 6 is pulled leftwards, the upper end of the boosting rod 6 rotates, the propelling piece 7 is driven to move rightwards on the propelling rod 4, the upper end of the propelling piece 7 is inclined leftwards due to the stress of the lower end of the propelling piece 7, the friction force F1 exists between the propelling piece 7 and the propelling rod 4, the upper end of the releasing piece 8 is inclined rightwards under the action of the spring C11, the friction force F2 exists between the releasing piece 8 and the propelling rod 4, the F2 is greater than the elastic force of the spring A9, the F1 is greater than the sum of the elastic forces of the F2 and the spring A9, the propelling rod 4 moves rightwards and the clamp plate B2 is driven to approach to the clamp plate A1; when the force applying rod 6 is loosened, the push rod 4 is not moved under the action of F2, the push sheet 7 is changed into a vertical state under the action of the spring B10, F1 is reduced or even disappears, the push sheet 7 is reset on the push rod 4 to the left, and the force applying rod 6 is driven to reset; pulling the force application rod 6 for a plurality of times to enable the push rod 4 to drive the clamping plate B2 to gradually approach the clamping plate A1; if the push rod is required to move leftwards, at the moment, the release sheet 8 is pressed to enable the lower end of the release sheet to move rightwards, when the release sheet 8 is erected, F2 is reduced or even disappears, because the push sheet 7 is also in an erected state at the moment, F1 is reduced or even disappears, even if the spring A9 does not exist, the push rod 4 is not stressed, and can be pulled away easily; whereas in the present invention spring a9 is present, the push rod 4 will automatically spring back.
As shown in fig. 5, the application method of the present invention is as follows: when in inflation, after a dustproof cap of an inflation inlet 13 of the GIS combined electrical equipment is removed, an inflation head 14 of the inflation equipment is placed into a U-shaped groove of a clamping plate B2, then the U-shaped groove of a clamping plate A1 is clamped on the inflation inlet 13 of the GIS combined electrical equipment, a handle 5 is respectively held by two hands, a force applying rod 6 is pressed, after the inflation head 14 is aligned with the inflation inlet 13, the direction can be corrected, the force applying rod 6 is continuously pressed, when the clamping plate A and the clamping plate B are gradually close, the front end of the inflation head 14 enters the inflation inlet 13, an air valve in the inflation inlet 13 is pushed open, at the moment, one hand can be loosened, and an inflation switch is opened for inflation; after inflation is finished, the inflation switch is closed, the handles 5 are respectively held by the two hands, the release sheet 8 is pressed by the thumb, due to the change of the angle of the release sheet 8, the friction force between the push rod 4 and the release sheet 8 is reduced or even disappears, the clamp plate B2 can be far away from the clamp plate A1 by pulling the release sheet backwards a little, and the front end of the inflation head 14 is separated from the inflation inlet 13.
The opening directions of the U-shaped open slot of the splint A1 and the U-shaped open slot of the splint B2 are consistent, the two groups of guide rods 3 are respectively positioned at two sides of the U-shaped open slot, and the number of each group of guide rods 3 is two; the upper and lower ends of the right arm 514 of the bracket 51 are respectively connected with the same group of guide rods 3. Specifically, in order to stabilize the propelling process, the two sets of guide bars 3 are symmetrical about the center of the U-shaped open slot.
The right end of the guide rod 3 is provided with external threads and is fixed on a clamping plate A1 through a nut, and the left end of the guide rod 3 is welded or in threaded connection with the right arm 514 of the bracket 51.
The right end of the propelling rod 4 is fixedly connected with a propelling disc 12, and the propelling disc 12 is circular. Specifically, the material of the propulsion disc can be selected from aluminum alloy or polyethylene, and the purpose of the propulsion disc is mainly to increase the stress area and stabilize the propulsion process.
In conclusion, the fixing clamp for charging and discharging air of the GIS combined electrical apparatus provided by the invention can effectively improve the SF6 charging and discharging efficiency of the GIS combined electrical apparatus, saves the maintenance time of electric power facilities and has certain economic benefit.
The present invention is not described in detail in the prior art.
Claims (4)
1. The utility model provides a GIS combined electrical apparatus fills fixed fixture of gassing, includes splint A (1), splint B (2), guide bar (3), pushing ram (4), handle (5), stress application pole (6), propulsion piece (7) and release piece (8), characterized by: the clamp plate comprises a clamp plate A (1) and a clamp plate B (2), wherein the clamp plate A (1) and the clamp plate B (2) are of a flat plate structure with U-shaped open slots, two groups of guide rods (3) perpendicular to the clamp plate A (1) are fixedly arranged on the left side face of the clamp plate A (1), a handle (5) is arranged at the left end of each group of guide rods (3), the clamp plate B (2) is arranged between the clamp plate A (1) and the handle (5), the clamp plate B (2) is parallel to the clamp plate A (1), the two groups of guide rods (3) penetrate through the clamp plate B (2), a spring A (9) is sleeved on each guide rod (3), and the spring A (9) is located between the clamp plate A (1) and the clamp plate B (2);
the handle (5) comprises a support (51) and a handheld part (52), the support (51) is composed of an upper arm (511), a lower arm (512), a left arm (513) and a right arm (514), the right arm (514) is connected with the guide rod (3), a guide hole A (541) is formed in the middle of the right arm (514), a guide hole B (533) is formed in the middle of the left arm (513), the push rod (4) penetrates through the guide hole A (541) and the guide hole B (533), and the right end of the push rod is used for abutting against the clamping plate B (2); the hand-held part (52) is fixedly connected to the left end of the lower part of the lower arm (512);
the propelling piece (7) is positioned between the left arm (513) and the right arm (514) of the bracket (51), sleeved on the propelling rod (4) and used for driving the propelling rod (4) to move towards the right side; a spring B (10) is arranged between the propelling piece (7) and the right arm (514), and the spring B (10) is sleeved on the propelling rod (4) and used for resetting the propelling piece (7);
the middle part of the stress application rod (6) is hinged on the lower arm (512) of the bracket (51), and the upper end of the stress application rod (6) is abutted against the left side of the propelling piece (7) and is used for driving the propelling piece (7) to move towards the right side;
the left end of the upper arm (511) of the bracket (51) is fixedly connected with a hinged seat (53), the middle part of the release sheet (8) is sleeved on the push rod (4), and the upper end of the release sheet is hinged on the hinged seat (53); the hinge seat (53) is provided with a hinge hole (531) with the axis vertical to the push rod (4), and one side of the hinge hole (531) is provided with a limiting surface (532) with the lower end inclined to the left for limiting the rotating angle of the release sheet (8); be equipped with spring C (11) between release piece (8) and right arm (514), spring C (11) cover is established on push rod (4) for the restoration of release piece (8).
2. The GIS combined electrical apparatus inflation/deflation fixing clamp as claimed in claim 1, wherein: the opening directions of the U-shaped open slot of the splint A (1) and the U-shaped open slot of the splint B (2) are consistent, the two groups of guide rods (3) are respectively positioned at two sides of the U-shaped open slot, and the number of each group of guide rods (3) is two; the upper end and the lower end of a right arm (514) of the bracket (51) are respectively connected with the same group of guide rods (3).
3. The GIS combined electrical apparatus inflation/deflation fixing clamp as claimed in claim 1, wherein: the right end of the guide rod (3) is provided with an external thread and is fixed on the clamping plate A (1) through a nut, and the left end of the guide rod (3) is welded or in threaded connection with the right arm (514) of the bracket (51).
4. The GIS combined electrical apparatus inflation/deflation fixing clamp as claimed in claim 1, wherein: the right end of the propelling rod (4) is fixedly connected with a propelling disc (12), and the propelling disc (12) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111344158.7A CN114110417A (en) | 2021-11-15 | 2021-11-15 | Charging and discharging fixing clamp for GIS combined electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111344158.7A CN114110417A (en) | 2021-11-15 | 2021-11-15 | Charging and discharging fixing clamp for GIS combined electrical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114110417A true CN114110417A (en) | 2022-03-01 |
Family
ID=80395962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111344158.7A Pending CN114110417A (en) | 2021-11-15 | 2021-11-15 | Charging and discharging fixing clamp for GIS combined electrical apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114110417A (en) |
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Application publication date: 20220301 |