CN211404760U - Ground wire suspension device for high-voltage measurement - Google Patents
Ground wire suspension device for high-voltage measurement Download PDFInfo
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- CN211404760U CN211404760U CN202020405046.2U CN202020405046U CN211404760U CN 211404760 U CN211404760 U CN 211404760U CN 202020405046 U CN202020405046 U CN 202020405046U CN 211404760 U CN211404760 U CN 211404760U
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- 239000000725 suspension Substances 0.000 title claims abstract description 15
- 238000005259 measurement Methods 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000004020 conductor Substances 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 21
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- 235000017491 Bambusa tulda Nutrition 0.000 abstract 2
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- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 2
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Abstract
The embodiment of the utility model discloses a ground wire unsettled device for high-voltage measurement, including the ground insulation seat, be equipped with the vacuum cavity in the ground insulation seat, fixedly mounted with the ground conductor in the bottom of vacuum cavity, fixedly mounted with the external expanding type conductive bullet section of thick bamboo on the top of the ground conductor, the external expanding type conductive bullet section of thick bamboo top is equipped with the hemisphere contact cap; a sliding lifting hole is formed in the top end of the vacuum cavity, an insulating lifting body is nested in the sliding lifting hole in a longitudinally sliding manner, a grounding plug-in is fixedly installed in the insulating lifting body, and the top end of the grounding plug-in is connected with a grounding wire for connecting a bushing end screen; the bottom end of the insulating lifting body is connected with the top end of the vacuum cavity through a sealing barrel piece which can longitudinally stretch out and draw back, and an insulating oil seal layer is arranged in the sealing barrel piece; under no external force, the suspension of the ground wire can be maintained, the test is convenient, whether the grounding is in place or not is judged through the LED indicating lamp, and the vacuum state in the device is maintained through the insulating oil seal layer.
Description
Technical Field
The embodiment of the utility model provides a relate to power equipment technical field, concretely relates to a ground wire unsettled device for high-pressure measurement.
Background
With the rapid development of national economy in China, the demand for electric power is increasing day by day, and the transformer industry, which is the main equipment in the transmission and transformation system, is also being developed. The transformer bushing is an insulating part, is used as a key accessory of the transformer, is an insulating bushing for leading high and low voltage leads inside the transformer to the outside of an oil tank, and plays a role in supporting a lead and insulating the lead to the ground. The transformer bushing end screen leading-out device is a leading-out ground wire of the last layer of the capacitor bushing insulation, and is grounded during operation. The high-voltage measurement mainly refers to the measurement of dielectric loss and insulation test of a body of a transformer bushing, and the end screen ground wire of the bushing needs to be suspended.
In the prior art, no better solution is available for suspending the end screen ground wire, and the end screen ground wire is often wrapped and lifted manually through an insulating rubber sleeve, so that the suspension state of the ground wire is not stable, and the grounding device is repeatedly disassembled and installed; after the ground wire is recovered, whether the grounding is in place or not is difficult to judge, the safe operation of the transformer is influenced by the sleeve end screen with poor grounding, and even the whole transformer is exploded in serious conditions, so that the safe operation of the whole power grid is influenced; in addition, the existing grounding device has poor sealing performance on the grounding conductor, so that the grounding conductor is easily oxidized and corroded.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a be used for high-pressure measuring ground wire unsettled device to whether the unsettled unstability of ground wire among the solution prior art, ground connection target in place hardly judge, current earthing device is to the relatively poor problem of earthing conductor's leakproofness, the embodiment of the utility model provides following technical scheme:
a ground wire suspension device for high-voltage measurement comprises a ground insulation seat fixedly installed on the ground, wherein a vacuum cavity is arranged inside the ground insulation seat, a ground conductor used for being connected to the ground bottom is fixedly installed at the bottom end of the vacuum cavity, an outward-expanding type conductive cylinder is fixedly installed at the top end of the ground conductor, and a hemispherical contact cap is arranged at the top end of the outward-expanding type conductive cylinder;
a sliding lifting hole penetrating to the outside is formed in the area, corresponding to the hemispherical contact cap, at the top end of the vacuum cavity, an insulating lifting body is longitudinally and slidably nested in the sliding lifting hole, a grounding plug-in piece used for conducting electricity by contacting the hemispherical contact cap is fixedly installed in the insulating lifting body, and the top end of the grounding plug-in piece is connected with a grounding lead used for connecting a sleeve end screen;
the bottom end of the insulating lifting body is connected with the top end of the vacuum cavity through a sealing barrel part which can longitudinally stretch out and draw back, and an insulating oil seal layer is arranged in the sealing barrel part;
the insulating lifting body is provided with a control component for driving the insulating lifting body to lift and lock; and an LED indicator lamp is arranged on the grounding plug-in.
As an optimized scheme of the utility model, the ground connection insulating seat is equipped with insulating oil intermediate layer, and insulating oil intermediate layer is through replenishing hole and insulating oil blanket intercommunication.
As an optimized scheme of the utility model, be equipped with on the pore wall in slip lift hole and be used for the intercommunication the oil conduction concave line on insulating oil blanket.
As a preferred scheme of the utility model, sealed barrel spare comprises urceolus and inner tube, the urceolus bottom is equipped with the spout, but the inner tube nestification is in with longitudinal sliding in the spout, and the spout intussuseption is filled with high density colloid layer.
As an optimized scheme the ground conductor top is still fixed and is used for the cover to establish outer expanding type conductive cartridge's insulating groove of restrainting, insulating groove cross-section of restrainting is bowling ball-shaped, be equipped with on the ground insulation seat and be used for observing the sealed observation window of LED pilot lamp state.
As a preferred embodiment of the present invention, the externally-expanding conductive cartridge case is composed of a pair of rigid rings at both ends and elastic arc pieces distributed circumferentially and connecting the two rigid rings, and the elastic arc pieces are bent outward.
As a preferred scheme of the utility model, control unit includes fixed mounting and is in the linkage board on insulating lifting body top, the both ends of linkage board are all through slide opening slidable mounting track pole, and track pole bottom end fixed mounting is at ground connection insulating seat.
As an optimized scheme of the utility model, one of them the track pole pass through the connecting piece install with the parallel jack bolt external member of track pole, and jack bolt external member bottom is passed through the bearing and is rotated and install on the linkage board.
The utility model discloses an embodiment has following advantage:
(1) the utility model discloses a lift of insulating lifting body makes ground connection plug-in components extrude outer expanding type conductive cartridge, through making outer expanding type conductive cartridge warp and communicate with the ground conductor, utilize the restoring force after outer expanding type conductive cartridge warp, make the bottom of hugging closely ground connection plug-in components of outer expanding type conductive cartridge top, through this kind of interaction, make the contact inseparabler to guarantee good electric conductive property;
(2) the utility model drives the grounding plug-in unit to rise through the control component, thereby still ensuring suspension without artificial action and facilitating test;
(3) the utility model discloses a parcel of vacuum cavity to ground plug-in components, outer expanding type conductive cartridge, can prevent effectively that ground plug-in components, outer expanding type conductive cartridge from being corroded, oxidizing and influencing electric conductive property, seal the movable gap of insulating elevating body through sealed barrel spare, insulating oil seal layer to when guaranteeing that the external world carries out the lift operation to insulating elevating body, still can maintain the vacuum cavity and not destroyed, in order to guarantee ground plug-in components, the life and the electric conductive property of outer expanding type conductive cartridge;
(4) the utility model discloses a LED pilot lamp can utilize to carry out the circular telegram to the earth connection wire after the earthing device installation, lights the LED pilot lamp through the electric current of process on the ground connection plug-in components to can judge directly perceivedly whether ground connection targets in place.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
FIG. 1 is a schematic view of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a sealing cartridge according to an embodiment of the present invention;
fig. 3 is a schematic view of the structure of the oil guiding concave line and the sliding lifting hole in the embodiment of the present invention.
In the figure:
1-a grounding insulating base; 2-vacuum chamber; 3-a ground conductor; 4-an external expansion type conductive cartridge; 5-insulating beam-collecting groove; 6-hemispherical contact cap; 7-sliding lifting holes; 8-an insulating lifter; 9-a ground plug; 10-a ground lead; 11-sealing the cartridge; 12-insulating oil seal layer; 13-a control component; 14-supplementary wells; 15-LED indicator lights; 16-sealing the observation window; 17-oil-guiding concave lines; 18-insulating oil interlayer;
111-outer cylinder; 112-inner cylinder; 113-a chute; 114-high density colloidal layer;
131-a linkage plate; 132-a slide hole; 133-track bar; 134-jack bolt kit.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides a ground wire unsettled device for high-pressure measurement, including fixed mounting at the ground insulation seat 1 of ground insulation seat 1 is inside to be equipped with vacuum cavity 2 the bottom fixed mounting of vacuum cavity 2 has the ground conductor 3 that is used for inserting the ground end 3 top fixed mounting of ground conductor has outer type of expanding electrically conductive cartridge 4, outer type of expanding electrically conductive cartridge 4 top is equipped with hemisphere contact cap 6.
The area, corresponding to the hemispherical contact cap 6, at the top end of the vacuum cavity 2 is provided with a sliding lifting hole 7 penetrating to the outside, an insulating lifting body 8 is nested in the sliding lifting hole 7 in a longitudinally slidable manner, a grounding plug-in unit 9 for conducting by contacting the hemispherical contact cap 6 is fixedly installed in the insulating lifting body 8, and the top end of the grounding plug-in unit 9 is connected with a grounding wire 10 for connecting a bushing end screen.
The bottom end of the insulating lifting body 8 is connected with the top end of the vacuum cavity 2 through a sealing cylinder 11 which can longitudinally stretch out and draw back, and an insulating oil seal layer 12 is arranged in the sealing cylinder 11; the insulating lifting body 8 is provided with a control component 13 for driving the insulating lifting body to lift and lock; an LED indicator light 15 is mounted on the grounding plug-in 9.
The utility model has the characteristics of it is following:
(1) the grounding plug-in unit 9 extrudes the externally-expanded conductive cylinder 4 through the lifting of the insulating lifting body 8, the externally-expanded conductive cylinder 4 is deformed and communicated with the grounding conductor 3, the restoring force of the deformed externally-expanded conductive cylinder 4 is utilized, so that the top end of the externally-expanded conductive cylinder 4 is tightly attached to the bottom end of the grounding plug-in unit 9, and the contact is tighter through the interaction, so that good conductive performance is ensured;
(2) the insulating lifting body 8 drives the grounding plug-in unit 9 to ascend through the control part 13, so that suspension can be still guaranteed under the condition of no need of human action, and testing is facilitated;
(3) the grounding plug-in 9 and the externally-expanded conductive barrel 4 are wrapped by the vacuum cavity 2, so that the grounding plug-in 9 and the externally-expanded conductive barrel 4 can be effectively prevented from being corroded and oxidized to influence the conductivity, and the movable gap of the insulating lifting body 8 is sealed by the sealing barrel part 11 and the insulating oil seal layer 12, so that the vacuum cavity 2 can be maintained not to be damaged while the lifting operation of the insulating lifting body 12 in the outside is ensured, and the service life and the conductivity of the grounding plug-in 9 and the externally-expanded conductive barrel 4 are ensured;
(4) through the LED indicating lamp 15, after the grounding device is installed, the grounding lead 10 is electrified, and the LED indicating lamp 15 is lightened through the current passing through the grounding plug-in 9, so that whether grounding is in place or not can be judged visually.
Wherein, the grounding insulating seat 1 is provided with an insulating oil interlayer 18, and the insulating oil interlayer 18 is communicated with the insulating oil seal layer 12 through a supplement hole 14.
As shown in fig. 3, the wall of the sliding lifting hole 7 is provided with oil guiding concave grains 17 for communicating with the insulating oil seal layer 12.
Through pouring insulating oil to oil guide concave lines 17, compensate insulating oil seal 12, compensate insulating oil intermediate layer 18 through supplementary hole 14, can cup joint with insulating lifting body 8's rigidity in guaranteeing slip lifting hole 7 through oil guide concave lines 17 to when guaranteeing stable slip between them, moisten insulating lifting body 8 through insulating oil, with the loss that reduces between the two.
As shown in fig. 2, the sealing cylinder 11 is composed of an outer cylinder 111 and an inner cylinder 112, the bottom end of the outer cylinder 111 is provided with a sliding slot 113, the inner cylinder 112 is longitudinally slidably nested in the sliding slot 113, and the sliding slot is filled with a high-density colloid layer 114.
The gap in the sealing cylinder 11 is filled through the high-density colloidal layer 114, so that the insulating oil seal layer 12 can be prevented from permeating the sealing cylinder 11 in the gap, the high-density colloidal layer 114 has certain fluidity and can be matched with the outer cylinder 111 and the inner cylinder 112 to complete the nested sliding action, the high-density colloidal layer 114 has certain viscosity and can be attached to the sealing cylinder 11 and not easily fall down to cause loss, for example, common materials such as non-setting adhesives and the like are used, the density of the materials is higher than that of insulating oil, and a better sealing effect can be obtained.
The top end of the grounding conductor 3 is further fixed with an insulating bundling groove 5 for sleeving the outward-expanding conductive cylinder 4, the section of the insulating bundling groove 5 is bowling ball-shaped, and the grounding insulating base 1 is provided with a sealed observation window 16 for observing the state of the LED indicator lamp 15.
The outward-expanding conductive barrel 4 is composed of a pair of rigid rings at two ends and a plurality of circumferentially distributed elastic arc sheets for connecting the two rigid rings, and the elastic arc sheets are bent outwards.
Through the special shape of the section of the insulating bundling groove 5, two ends of the externally-expanded conductive barrel 4 can be tightened, so that a gap between the insulating bundling groove 5 and the two ends of the externally-expanded conductive barrel 4 is reduced, the two ends of the externally-expanded conductive barrel 4 are limited, and the position of the externally-expanded conductive barrel 4 is prevented from being deviated; the middle part of the insulating bundling groove 5 controls the gap of the externally-expanded conductive cartridge 4, so that a certain elastic deformation space of the externally-expanded conductive cartridge 4 can be reserved, and the deformation degree of the externally-expanded conductive cartridge 4 is limited, so that the situation that the externally-expanded conductive cartridge 4 is excessively deformed to prevent the cartridge from being incapable of being recovered is avoided.
The control component 13 comprises a linkage plate 131 fixedly mounted at the top end of the insulating lifting body 8, two ends of the linkage plate 131 are both slidably mounted with a track rod 133 through a sliding hole 132, and the bottom end of the track rod 133 is fixedly mounted on the grounding insulating base 1.
Wherein, a lifting bolt suite 134 parallel to the track rod 133 is installed on one of the track rods 133 through a connecting piece, and the bottom end of the lifting bolt suite 134 is rotatably installed on the linkage plate 131 through a bearing.
The linkage plate 131 slides on the pair of track rods 133, so that the sliding process of the linkage plate 131 is more accurate and stable, and accurate butt joint of the grounding plug-in 9 and the externally-expanded conductive cartridge 4 is ensured.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. The ground wire suspension device for high-voltage measurement is characterized by comprising a grounding insulation seat (1) fixedly installed on the ground, wherein a vacuum cavity (2) is arranged inside the grounding insulation seat (1), a grounding conductor (3) used for being connected to the ground bottom is fixedly installed at the bottom end of the vacuum cavity (2), an outward-expanding conductive bullet tube (4) is fixedly installed at the top end of the grounding conductor (3), and a hemispherical contact cap (6) is arranged at the top end of the outward-expanding conductive bullet tube (4);
a sliding lifting hole (7) penetrating to the outside is formed in the area, corresponding to the hemispherical contact cap (6), at the top end of the vacuum cavity (2), an insulating lifting body (8) is nested in the sliding lifting hole (7) in a longitudinally sliding manner, a grounding plug-in (9) used for being in contact with the hemispherical contact cap (6) to conduct electricity is fixedly installed in the insulating lifting body (8), and the top end of the grounding plug-in (9) is connected with a grounding lead (10) used for being connected with a bushing end screen;
the bottom end of the insulating lifting body (8) is connected with the top end of the vacuum cavity (2) through a sealing cylinder part (11) which can longitudinally stretch out and draw back, and an insulating oil seal layer (12) is arranged in the sealing cylinder part (11);
the insulating lifting body (8) is provided with a control component (13) for driving the insulating lifting body to lift and lock; and an LED indicator lamp (15) is arranged on the grounding plug-in (9).
2. The ground wire suspension device for high voltage measurement according to claim 1, characterized in that the ground insulating base (1) is provided with an insulating oil interlayer (18), and the insulating oil interlayer (18) is communicated with the insulating oil seal (12) through a supplementary hole (14).
3. The ground wire suspension device for high-voltage measurement according to claim 2, wherein the wall of the sliding lifting hole (7) is provided with oil guide concave patterns (17) for communicating the insulating oil seal layer (12).
4. The ground wire suspension device for high-voltage measurement according to claim 1, characterized in that the sealing cylinder (11) is composed of an outer cylinder (111) and an inner cylinder (112), the bottom end of the outer cylinder (111) is provided with a sliding groove (113), the inner cylinder (112) is longitudinally slidably nested in the sliding groove (113), and the sliding groove is filled with a high-density colloid layer (114).
5. The ground wire suspension device for high voltage measurement according to claim 1, wherein an insulating bundling slot (5) for sleeving the outward-expanding conductive barrel (4) is further fixed at the top end of the grounding conductor (3), the section of the insulating bundling slot (5) is bowling ball-shaped, and a sealed observation window (16) for observing the state of the LED indicator (15) is arranged on the grounding insulating base (1).
6. The ground wire suspension device for high voltage measurement according to claim 1, wherein the outward-expanding conductive cartridge (4) is composed of a pair of rigid rings at both ends and a plurality of circumferentially distributed elastic arc pieces connecting the two, and the elastic arc pieces are bent outward.
7. The ground wire suspension device for high voltage measurement according to claim 1, wherein the control component (13) comprises a linkage plate (131) fixedly mounted at the top end of the insulating lifting body (8), both ends of the linkage plate (131) are slidably mounted with track rods (133) through sliding holes (132), and the bottom ends of the track rods (133) are fixedly mounted on the grounding insulating base (1).
8. The ground wire suspension device for high voltage measurement as claimed in claim 7, wherein one of the rail rods (133) is installed with a lifting bolt kit (134) parallel to the rail rod (133) through a connector, and the bottom end of the lifting bolt kit (134) is rotatably installed on the linkage plate (131) through a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020405046.2U CN211404760U (en) | 2020-03-26 | 2020-03-26 | Ground wire suspension device for high-voltage measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020405046.2U CN211404760U (en) | 2020-03-26 | 2020-03-26 | Ground wire suspension device for high-voltage measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211404760U true CN211404760U (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020405046.2U Active CN211404760U (en) | 2020-03-26 | 2020-03-26 | Ground wire suspension device for high-voltage measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211404760U (en) |
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2020
- 2020-03-26 CN CN202020405046.2U patent/CN211404760U/en active Active
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