CN112147376A

CN112147376A - Fixing support and high-voltage test device

Info

Publication number: CN112147376A
Application number: CN202010862980.1A
Authority: CN
Inventors: 刘佳伟; 罗祖为; 刘国锋; 陈立劲; 陈宇昇; 夏永强; 方俊钦; 曾植榆; 杨日辉; 高博文; 刘高远; 王波
Original assignee: Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2020-12-29

Abstract

The invention relates to a fixed support and a high-voltage test device, comprising: the support comprises a support body, wherein the top surface of the support body is inwards provided with a positioning hole in a concave manner, the support body is made of an insulating material, or the support body is provided with an insulating part used for contacting with the ground; and the drainage belt is laid on the support body and arranged on one side of the hole edge of the positioning hole, and is used for contacting with the lightning arrester and connecting the test current into the leakage ammeter. The fixing support is applied to the occasion of carrying out high-voltage test on the lightning arrester, can play firm installation to the lightning arrester, guarantees that the lightning arrester is in perpendicular vertical position appearance, and reliable ground is insulating simultaneously, reaches the purpose that improves test efficiency, and the assurance test result is accurate. Because the support body adopts insulating material to make, or be equipped with the insulating part of ground contact, so can guarantee that the arrester is reliably insulating to ground, avoid producing the reposition of redundant personnel in the test process and influence the test result degree of accuracy.

Description

Fixing support and high-voltage test device

Technical Field

The invention relates to the technical field of high-voltage tests, in particular to a fixed support and a high-voltage test device.

Background

At present, when a 10KV lightning arrester spare product or a 10KV lightning arrester product detached from a line is subjected to a high-voltage test, the lightning arrester is generally required to be vertically fixed, meanwhile, the bottom of the lightning arrester is guaranteed to be insulated to the ground, and then a leakage ammeter can be installed for measurement operation. However, when carrying out fixed mounting to the arrester, generally all look for suitable article in the surrounding environment and support, not only look for, try on and the adjustment can consume a large amount of time, increase testing personnel working strength, influence test efficiency, because the structural shape of different article is various, hardly guarantee that the arrester is vertical fixed and the appearance is crooked simultaneously, influence the experimental result degree of accuracy.

Disclosure of Invention

Based on this, it is necessary to provide a fixing support and a high-voltage testing device, and the problem that the use is inconvenient and the test efficiency and the test result accuracy are affected in the prior art is solved.

In one aspect, the present application provides a fixing support, comprising:

the support comprises a support body, wherein the top surface of the support body is inwards provided with a positioning hole in a concave manner, the support body is made of an insulating material, or the support body is provided with an insulating part used for contacting with the ground; and

the drainage belt is laid on the support body and arranged on one side of the hole edge of the positioning hole, and the drainage belt is used for being in contact with the lightning arrester and connecting the test current into the leakage ammeter.

The fixing support is applied to the occasion of carrying out high-voltage test on the lightning arrester, can play firm installation to the lightning arrester, guarantees that the lightning arrester is in perpendicular vertical position appearance, and reliable ground is insulating simultaneously, reaches the purpose that improves test efficiency, and the assurance test result is accurate. Particularly, through the design preparation support body, make testing personnel conveniently carry this support body to different operation occasions in, need not testing personnel consume a large amount of time and energy and seek the article that can support the arrester, and through preset the locating hole on the support body, make the arrester installation, the metal end of its tip can the disect insertion locating hole in, with the help of location and the guide effect of locating hole, alright be in perpendicular vertical position appearance after guaranteeing the arrester installation, and preset the drainage area on the support body, the arrester contacts with the drainage area and switches on, can make test current normally insert the leakage current meter, satisfy experimental requirement. And because the support body adopts insulating material to make, or be equipped with the insulating part of ground contact, so can guarantee that the arrester is reliably insulating to ground, avoid producing the reposition of redundant personnel in the testing process and influence the test result degree of accuracy.

The technical solution of the present application is further described below:

in one embodiment, the positioning hole is provided with a pilot concave part close to the hole wall part of the hole opening.

In one embodiment, the top surface of the support body is further provided with a limiting groove inwards, and the positioning hole is formed in the groove bottom of the limiting groove.

In one embodiment, at least one side groove wall of the limiting groove is provided with a cambered surface notch close to the notch part.

In one embodiment, the top surface of the support body is further provided with a clamping groove inwards, and the drainage belt is inserted into the clamping groove.

In one embodiment, an adhesive member is arranged in the clamping groove, and the drainage tape is inserted into the clamping groove and is fixedly adhered to the adhesive member.

In one embodiment, the number of the positioning holes is at least two, at least two positioning holes are arranged side by side at intervals, the number of the drainage belts is at least two, and two drainage belts are arranged on two opposite sides of each positioning hole arranged in a row at intervals.

In one embodiment, the fixed support further comprises an outgoing connector, an outgoing line and a quick connector, the outgoing connector is electrically connected with the drainage strip, one end of the outgoing line is electrically connected with the outgoing connector, the other end of the outgoing line is electrically connected with the quick connector, and the quick connector is further used for being connected with a connector of the leakage ammeter.

In one embodiment, the fixing support further comprises a carrying handle, and the carrying handle is arranged on the support body.

In another aspect, the present application further provides a high voltage testing apparatus, which includes the fixing support as described above.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a fixing support according to an embodiment of the present invention;

fig. 2 is a schematic top view of the structure of fig. 1.

Description of reference numerals:

10. a support body; 11. positioning holes; 12. a card slot; 20. a drainage band; 30. leading out a joint; 40. an outgoing line; 50. a quick-connect joint; 60. a handle.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

The embodiment of the application provides a high-voltage testing device, it is used for carrying out high-voltage reliability test to the arrester to make the testing personnel find out whether there is quality defect in the arrester, use the potential safety hazard in order to eliminate the later stage. It is understood that the lightning arrester may be a live lightning arrester which is in service in a line, removed from the line, or a spare lightning arrester which is stored in a warehouse or purchased directly and has not been used yet.

In this embodiment, the high voltage test apparatus mainly includes a leakage current meter and a fixed support. During testing, the fixed support is used for bearing and fixing the tested lightning arrester and communicating the lightning arrester with the leakage ammeter to carry out normal testing.

As shown in fig. 1 and 2, a fixing bracket is shown for an embodiment of the present application, the fixing bracket including: a support body 10 and a drainage belt 20. The top surface of the support body 10 is provided with a positioning hole 11 inwards concave, the support body 10 is made of an insulating material, or the support body 10 is provided with an insulating part used for contacting with the ground. For example, the entire seat body 10 may be made of epoxy resin material to have insulation capability, or the leg portion of the seat body 10 may be made of epoxy resin, plastic, wood, or other insulation material, while the main body portion may be made of any kind of material in the prior art, in which case the seat body 10 is made of composite material. The current guiding belt 20 is laid on the support body 10 and arranged on one side of the hole edge of the positioning hole 11, and the current guiding belt 20 is used for contacting with the lightning arrester and connecting the test current into the leakage ammeter.

In summary, the implementation of the technical solution of the present embodiment has the following beneficial effects: the fixing support is applied to the occasion of carrying out high-voltage test on the lightning arrester, can play firm installation to the lightning arrester, guarantees that the lightning arrester is in perpendicular vertical position appearance, and reliable ground is insulating simultaneously, reaches the purpose that improves test efficiency, and the assurance test result is accurate. Particularly, through design preparation support body 10, make testing personnel conveniently carry this support body 10 to different operation occasions, need not testing personnel consume a large amount of time and energy and look for the article that can support the arrester, and through preset locating hole 11 on support body 10, make the arrester when installing, the metal end of its tip can the disect insertion locating hole 11 in, with the help of the location and the guide effect of locating hole 11, alright be in perpendicular vertical position appearance after guaranteeing the arrester installation, and preset on support body and have the drainage area 20, the arrester switches on with the contact of drainage area 20, can make test current normally insert the leakage ampere meter, satisfy experimental requirement. Moreover, because the support body 10 is made of insulating materials or is provided with an insulating part which is contacted with the ground, the lightning arrester can be ensured to be reliably insulated to the ground, and the accuracy of a test result is prevented from being influenced by shunt in the test process.

The diameter of the positioning hole 11 is 26 mm.

Further, on the basis of the above embodiment, the positioning hole 11 is provided with a pilot recess portion near the hole wall of the hole opening. In the process that the metal end of the end part of the lightning arrester is inserted into the positioning hole 11, the guide concave part can play a guide role in the metal end with deviation and deflection, so that the installed lightning arrester can guarantee a vertical pose to meet the test requirement.

Specifically, lead positive concave part and be inclined plane or cambered surface, inclined plane or cambered surface outwards incline towards the hole center of keeping away from locating hole 11 and set up, and this kind of flaring structural design can play the direction and lead positive effect to the metal end.

Furthermore, the top surface of the support body 10 is further provided with a limiting groove in an inward concave manner, and the positioning hole 11 is formed at the bottom of the limiting groove. After the metal end inserts locating hole 11, the bottom surface of a slice skirt umbrella that is closest to the metal end can with the notch edge butt of spacing groove this moment to can receive the spacing effect that this butt relation brought, with avoid because of the arrester is highly great, the focus is higher, produces the instability easily and takes place to rock.

In addition, in the above embodiment, an arc notch is formed on at least one side of the groove wall of the limit groove near the notch. Because the skirt umbrella forms into umbrella-type structure, and its surface is the cambered surface, has made the cambered surface notch through the design that is close to port department at least one side cell wall at the spacing groove this moment, and the cambered surface notch is bigger with the contact binding face of skirt umbrella, and is stronger to the positioning effect of skirt umbrella, can further guarantee that the arrester installation is firm.

Preferably, two opposite groove walls of the limiting groove are provided with cambered surface notches, so that the installation effect on the lightning arrester can be enhanced.

Referring to fig. 1, in other embodiments, a clamping groove 12 is further concavely formed in the top surface of the support body 10, and the diversion strip 20 is inserted into the clamping groove 12. Therefore, the groove wall of the clamping groove 12 forms clamping force on the drainage belt 20, and the degree of freedom of the drainage belt 20 can be well limited, so that the effect of firm installation of the drainage belt 20 is achieved.

Further, on the basis of the above embodiment, an adhesive member is disposed in the slot 12, and the drainage strip 20 is inserted into the slot 12 and is adhered and fixed with the adhesive member. Optionally, the adhesive member may be a sticky substance or component such as glue or double-sided tape, so as to apply an adhesive force to the drainage tape 20, and the adhesive force cooperates with the clamping force applied by the clamping groove 12, so as to further ensure that the drainage tape 20 is reliably mounted and is not easily loosened and dropped.

Of course, in other embodiments, the drainage band 20 can be mounted on the support body 10 by means of bonding, fastening, or the like; the concrete can be selected according to actual needs.

Furthermore, on the basis of any of the above embodiments, at least two positioning holes 11 are provided, at least two positioning holes 11 are arranged side by side at intervals, at least two drainage strips 20 are provided, and two drainage strips 20 are arranged side by side at intervals on opposite sides of each positioning hole 11 arranged in a row. At the moment, one lightning arrester can be respectively installed at each positioning hole 11, so that the fixing support can be used for loading at least two lightning arresters and simultaneously carrying out high-voltage test in a single test period, and the test efficiency is greatly improved.

Referring to fig. 2, preferably, in the present embodiment, two rows of six positioning holes 11 are disposed on the top surface of the support body 10, and the drainage strips 20 include four strips, two strips are spaced and arranged side by side outside one row of the positioning holes 11, and the other two drainage strips 20 are spaced and arranged side by side outside the other row of the positioning holes 11. At this time, six lightning arresters can be subjected to high-voltage test at the same time.

Of course, in other embodiments, the number of the positioning holes 11 may also be three, four, seven or more, and may be specifically selected according to actual needs.

With reference to fig. 1, on the basis of the above embodiment, the fixed support further includes an outgoing connector 30, an outgoing line 40, and a quick connector 50, where the outgoing connector 30 is electrically connected to the current guiding strap 20, one end of the outgoing line 40 is electrically connected to the outgoing connector 30, the other end of the outgoing line 40 is electrically connected to the quick connector 50, and the quick connector 50 is further used for connecting to a connector of the leakage current meter. So, be convenient for with the electric current on a plurality of arresters its quick access leakage ampere meter simultaneously to accomplish high-voltage testing operation, improved experimental operation convenience and experience greatly and felt.

With continued reference to fig. 1, the fixing support further includes a handle 60, and the handle 60 is disposed on the support body 10. The fixed support is convenient to move and move by arranging the lifting handle 60.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A fixing support, characterized in that it comprises:

2. The fixing support according to claim 1, wherein the positioning hole is provided with a guiding recess at a hole wall portion close to the hole opening.

3. The fixing support according to claim 2, wherein the top surface of the support body is further provided with a limiting groove inwards, and the positioning hole is formed at the bottom of the limiting groove.

4. The fixing support according to claim 3, wherein at least one side of the limiting groove is formed with a cambered notch near the notch.

5. The fixed support saddle according to claim 1, wherein the top surface of the support saddle body is further provided with a clamping groove inwards, and the drainage strip is inserted into the clamping groove.

6. The fixing support according to claim 5, characterized in that an adhesive member is disposed in the slot, and the drainage strip is inserted into the slot and is adhesively fixed to the adhesive member.

7. The fixing support according to any one of claims 1 to 6, wherein the positioning holes are provided in at least two, at least two positioning holes are arranged side by side at intervals, the drainage strips are provided in at least two, and two drainage strips are arranged side by side at intervals on opposite sides of each positioning hole arranged in a row.

8. The fixing support according to claim 7, wherein the fixing support further comprises an outgoing connector, an outgoing line and a quick connector, the outgoing connector is electrically connected with the drainage strip, one end of the outgoing line is electrically connected with the outgoing connector, the other end of the outgoing line is electrically connected with the quick connector, and the quick connector is further used for being connected with a connector of the leakage ammeter.

9. The cradle of claim 8, further comprising a handle, the handle being disposed on the cradle body.

10. A high-pressure testing device comprising a stationary support according to any one of claims 1 to 9.