CN214375093U - Gas insulation test box - Google Patents
Gas insulation test box Download PDFInfo
- Publication number
- CN214375093U CN214375093U CN202022647040.9U CN202022647040U CN214375093U CN 214375093 U CN214375093 U CN 214375093U CN 202022647040 U CN202022647040 U CN 202022647040U CN 214375093 U CN214375093 U CN 214375093U
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- transmission rod
- insulation test
- gas insulation
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- 238000009413 insulation Methods 0.000 title claims abstract description 42
- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 50
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000007704 transition Effects 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 9
- 239000000725 suspension Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 210000003781 tooth socket Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to a gas insulation test box. Gas insulation test chamber, comprising: the box body is internally provided with a first fixed seat and a second fixed seat, the two fixed seats are arranged at intervals along the left-right direction, the first fixed seat is provided with a first connecting head, the first connecting head is used for connecting a first contact, and the second fixed seat comprises a guide section; the transmission rod comprises an adjusting tooth section and a guide matching section, the guide matching section and the guide section are assembled in a sliding mode along the left-right direction, a sealing ring is arranged between the guide matching section and the guide section, the outer end of the transmission rod is an operating end, the operating end extends out of the box body, and the inner end of the transmission rod is provided with a second connector which is used for being connected with a second contact; and a stop surface is arranged between the adjusting tooth section and the guide matching section and used for facing the first contact, the guide section is provided with a stop matching surface, and the stop surface is in stop matching with the stop matching surface in the process that the transmission rod moves towards the first contact so as to stop the transmission rod at a set position.
Description
Technical Field
The utility model relates to a gas insulation test box.
Background
In order to meet the insulation requirements of different degrees, the air box of the gas insulation switch cabinet can be filled with insulation gas with different pressures. Therefore, the study of the insulation properties of the insulating gas at different insulation distances is very important.
The Chinese patent with the publication number of CN105954657B discloses an insulation distance adjustable gas insulation characteristic testing device, which comprises a shell, wherein a first contact and a second contact are arranged in the shell, the first contact is used for being electrically connected with high voltage, the second contact is detachably connected to a transmission rod, and the transmission rod and a guide sleeve in the shell are assembled in a sliding and sealing mode along the left-right direction; the transmission rod is provided with a tooth socket, the rod section of the transmission rod, which is provided with the tooth socket, is an adjusting tooth section, and the rod section of the transmission rod, which is in sliding sealing fit with the guide sleeve, is a guide fit section; after the transmission rod is adjusted in place along the left-right direction, the metal clamping piece is inserted into the corresponding tooth groove to fix the position of the transmission rod, so that the insulation distance between the first contact and the second contact is adjusted.
However, the transmission rod is not axially limited during adjustment, and if an operator operates the transmission rod by mistake, the transmission rod is easy to transit to the left, so that teeth on the transmission rod scratch a sealing ring, the sealing performance is affected, and even two contacts are close to each other, so that potential safety hazards are generated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gas insulation test box to it is spacing that the transfer line does not have the axial when adjusting among the solution prior art, leads to the transfer line transition to move to the left easily, and causes the technical problem that the sealing washer was scratched to the tooth on the transfer line.
In order to achieve the above object, the utility model discloses gas insulation test box's technical scheme is:
gas insulation test chamber, comprising:
the box body is internally provided with a first fixed seat and a second fixed seat, the two fixed seats are arranged at intervals along the left-right direction, the first fixed seat is provided with a first connecting head, the first connecting head is used for connecting a first contact, and the second fixed seat comprises a guide section;
the transmission rod comprises an adjusting tooth section and a guide matching section, the guide matching section and the guide section are assembled in a sliding mode along the left-right direction, a sealing ring is arranged between the guide matching section and the guide section, the outer end of the transmission rod is an operating end, the operating end extends out of the box body, and the inner end of the transmission rod is provided with a second connector which is used for being connected with a second contact;
and a stop surface is arranged between the adjusting tooth section and the guide matching section and used for facing the first contact, the guide section is provided with a stop matching surface, and the stop surface is in stop matching with the stop matching surface in the process that the transmission rod moves towards the first contact so as to stop the transmission rod at a set position.
The beneficial effects are that: in the process that the transmission rod moves towards the first contact, the stop surface on the transmission rod is in stop fit with the stop matching surface of the guide section so as to stop the transmission rod at a set position, so that the transmission rod cannot move to the right in a transition manner, and the damage of the teeth on the adjusting tooth section to a sealing ring between the guide section and the transmission rod is avoided, and the sealing performance is reduced.
Furthermore, the transmission rod comprises a large-diameter section and a small-diameter section, the transition position of the large-diameter section and the small-diameter section is of a step structure, the step surface of the step structure forms the stop surface, the adjusting tooth section is arranged on the large-diameter section, and the guide matching section is arranged on the small-diameter section.
Further, the second fixing base still includes adjusts the cooperation section, adjusts the cooperation section and has the internal thread, it has the external screw thread to adjust the tooth section, moves in order to realize the transfer line in the left and right directions through rotatory big footpath section.
The beneficial effects are that: so that the adjustment of the transmission rod is more convenient.
Further, the adjusting matching section and the guiding section are integrally formed.
The beneficial effects are that: the processing of the second fixing seat is convenient.
Further, the first connector and/or the second connector are studs.
The beneficial effects are that: the disassembly, assembly and replacement of the contact are convenient.
Furthermore, reinforcing ribs are arranged on the inner wall and/or the outer wall of the box body.
The beneficial effects are that: the strength of the box body is improved, and the stability of the box body under larger gas pressure is ensured.
Furthermore, an explosion-proof valve is arranged on the side wall of the box body.
The beneficial effects are that: the explosion-proof valve is broken when the pressure in the box body exceeds a safety value, so that the safety in the test process is ensured.
Further, the box body is provided with a contact mounting opening, the gas insulation test box comprises a cover plate, the cover plate is covered on the contact mounting opening, and the explosion-proof valve is arranged on the cover plate.
The beneficial effects are that: the explosion-proof valve is arranged on the cover plate of the box body, so that the installation of the explosion-proof valve is facilitated.
Furthermore, an observation window is further arranged on the side wall of the box body.
The beneficial effects are that: so as to observe the actual discharge condition in the box body.
Furthermore, the box body is provided with a contact mounting opening, the gas insulation test box comprises a cover plate, the cover plate is covered on the contact mounting opening, the first fixing seat comprises a suspension rod, and the first connecting head is arranged on the suspension rod.
The beneficial effects are that: the apron is the apron on the true gas tank, and the size of general apron is great, makes the whole size of box also great like this, consequently, through set up the overhanging pole on first fixing base, has avoided the length of drive lever longer.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the gas insulation test chamber of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
in the figure: 11-a box body; 12-an inner cone socket; 13-an insulating sleeve; 14-a cantilever bar; 15-a first contact; 16-a second contact; 17-reinforcing ribs; 18-a fixed flange; 19-a transmission rod; 20-adjusting the matching section; 21-lifting lugs; 22-a guide section; 23-a cover plate; 24-an explosion-proof valve; 25-barometer; 26-observation window; 27-a large diameter section; 28-small diameter section; 29-step surface; 30-left side of the guide section.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "upper" and "lower" are based on the orientation and positional relationship shown in the drawings and are only for convenience of description of the present invention, and do not indicate that the referred device or component must have a specific orientation, and thus, should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses embodiment 1 of gas insulation test case:
as shown in fig. 1 to 3, the gas insulation test chamber comprises a chamber body 11, wherein the chamber body 11 is of a hexagonal structure and is welded by stainless steel plates to simulate a real gas chamber, so as to better simulate a real environment; be equipped with first fixing base and second fixing base in the box 11, first fixing base and second fixing base are along left right direction interval and coaxial arrangement. In other embodiments, the centerlines of the first and second holders may not coincide.
In this embodiment, the first fixing seat comprises an inner cone socket 12 and an insulating sleeve 13, the inner cone socket 12 is fixed on the right side wall of the box body 11 in a sealing manner, and the inner cone socket 12 is used for connecting high voltage electricity; the insulating sleeve 13 is fixed on the inner cone socket 12 in a sealing mode, the left end of the insulating sleeve 13 is connected with a suspension rod 14, and a stud is arranged at the left end of the suspension rod 14 so as to be convenient for dismounting the first contact 15. The stud on the cantilever 14 forms a first connection joint, and the first contact 15 is a high voltage electrode.
In this embodiment, the second fixing seat includes an adjusting fitting section 20 and a guiding section 22, a fixing flange 18 is disposed on the outer peripheral surface of the adjusting fitting section 20, and the second fixing seat is fixed on the left side wall of the box body 11 in a sealing manner through the fixing flange 18; wherein, adjust cooperation section 20 and direction section 22 integrated into one piece to the processing of second fixing base is convenient for.
As shown in fig. 1 and 3, the gas insulation test chamber further comprises a transmission rod 19, wherein the transmission rod 19 comprises a large-diameter section 27 and a small-diameter section 28, and the small-diameter section 28 is positioned at the right side of the large-diameter section 27; the small diameter section 28 comprises a guide matching section, the guide matching section and the guide section 22 are assembled in a sliding mode along the left-right direction, and a sealing ring is arranged between the guide matching section and the guide section 22 to guarantee sealing; the right end of the small diameter section 28 is provided with a stud to facilitate the removal and installation of the second contact 16. The stud on the small diameter section 28 forms a second connector, the second contact 16 is a low voltage electrode, and the second contact 16 includes a connecting socket and an electrode plate.
In this embodiment, the outer end of the large diameter section 27 is an operation end, and the operation end extends out of the box 11 to drive the large diameter section 27 to rotate. Specifically, the adjusting matching section 20 has an internal thread, the large-diameter section 27 includes an adjusting tooth section having an external thread, and an operator drives the large-diameter section 27 to rotate through the operating end, so as to realize the movement of the transmission rod 19 in the left-right direction, and further realize the adjustment of the insulation distance between the first contact 15 and the second contact 16. Wherein the external thread forms a toothing on the transmission rod.
As shown in fig. 3, the transition position between the large diameter section 27 and the small diameter section 28 is a step structure, and in the process that the transmission rod 19 moves towards the first contact 15, a step surface 29 of the step structure is in stop fit with the left side surface 30 of the guide section to stop the transmission rod 19 at a set position, so that the transmission rod 19 does not move to the right in a transition manner, and the sealing ring between the guide section 22 and the small diameter section 28 is prevented from being damaged by the external thread on the large diameter section 27, and the sealing performance is reduced. Wherein, the step surface 29 of the step structure forms a stop surface, and the left side surface 30 of the guide section forms a stop matching surface.
In this embodiment, the box 11 is formed by welding 3mm steel plates, and in order to ensure that the box 11 does not deform under a large pressure, as shown in fig. 2 and 3, reinforcing ribs 17 are respectively arranged on the inner wall and the outer wall of the box 11 to improve the strength of the box 11, thereby ensuring the stability of the box 11 under a large gas pressure.
In this embodiment, the top of the box 11 has a contact mounting opening for mounting the contact and the fixing seat, the gas insulation test chamber includes a cover plate 23, and the cover plate 23 is hermetically fixed on the box 11 to cover the contact mounting opening. Wherein, the cover plate 23 is a cover plate on a real gas box, and the size of the cover plate 23 is larger, so that the whole size of the box body is larger, therefore, the overhanging rod 14 is added, and the longer length of the transmission rod 19 is avoided.
The cover plate 23 is provided with an explosion-proof valve 24, the explosion-proof valve 24 is hermetically fixed on the cover plate 23, and the explosion-proof valve 24 is broken when the pressure in the box body 11 exceeds a safety value so as to ensure the safety in the test process. Wherein, the explosion-proof valve 24 is the existing mature product.
In this embodiment, an observation window 26 is disposed on the front side wall of the box 11 to observe the actual discharge condition inside the box 11. The observation window 26 consists of an inner flange, an outer flange and a glass plate, wherein the glass plate is positioned between the inner flange and the outer flange and is sealed by a sealing ring; the inner flange plate and the box body 11 are sealed through a sealing ring.
In this embodiment, four lifting lugs 21 are disposed on the top of the box 11, so as to facilitate the carrying of the box 11.
In this embodiment, the box 11 is provided with an air charging/discharging port, and the air charging/discharging port is connected with a barometer 25 for observing the air pressure in the box 11 in real time. When the inflation and deflation are needed, the air pressure meter 25 is detached, and after the inflation and deflation are completed, the air pressure meter 25 is installed. In other embodiments, the inflation and deflation ports may also serve as moisture detection ports.
The gas insulation test box in the embodiment can obtain the maximum voltage tolerance value of each insulating gas under different pressures, insulating distances and electrode forms, provides a reference basis for the subsequent insulation design of the switch cabinet, and can effectively reduce the design cost.
The utility model discloses embodiment 2 of gas insulation test case:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the transmission rod includes a large diameter section 27 and a small diameter section 28, the transition position between the large diameter section 27 and the small diameter section 28 is a step structure, and a step surface 29 of the step structure constitutes a stop surface. In this embodiment, the transmission rod has a uniform rod diameter, and the transmission rod is provided with a shoulder, and a side surface of the shoulder facing the first contact forms a stop surface.
The utility model discloses embodiment 3 of gas insulation test case:
the present embodiment is different from embodiment 1 in that in embodiment 1, the adjustment fitting section 20 has an internal thread, the adjustment tooth section of the large diameter section 27 has an external thread, and the movement of the transmission lever 19 in the left-right direction is realized by rotating the large diameter section 27. In this embodiment, the movement of the transmission rod in the left-right direction is realized by the movement of the transmission rod disclosed in the patent with the publication number CN 105954657B.
The utility model discloses embodiment 4 of gas insulation test case:
the present embodiment is different from embodiment 1 in that, in embodiment 1, the adjustment fitting section 20 and the guide section 22 are integrally formed. In other embodiments, the adjustment mating section and the guide section are formed separately.
The utility model discloses embodiment 5 of gas insulation test case:
the present embodiment is different from embodiment 1 in that embodiment 1 has an explosion-proof valve 24 mounted on a cover plate 23. In other embodiments, the explosion-proof valve is mounted directly on the side wall of the tank.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Gas insulation test chamber, comprising:
the box body is internally provided with a first fixed seat and a second fixed seat, the two fixed seats are arranged at intervals along the left-right direction, the first fixed seat is provided with a first connecting head, the first connecting head is used for connecting a first contact, and the second fixed seat comprises a guide section;
the transmission rod comprises an adjusting tooth section and a guide matching section, the guide matching section and the guide section are assembled in a sliding mode along the left-right direction, a sealing ring is arranged between the guide matching section and the guide section, the outer end of the transmission rod is an operating end, the operating end extends out of the box body, and the inner end of the transmission rod is provided with a second connector which is used for being connected with a second contact;
the contact structure is characterized in that a stopping surface is arranged between the adjusting tooth section and the guide matching section, the stopping surface is used for being arranged towards the first contact, the guide section is provided with a stopping matching surface, and the stopping surface is in stopping matching with the stopping matching surface in the process that the transmission rod moves towards the first contact so as to stop the transmission rod at a set position.
2. The gas insulation test chamber as recited in claim 1, wherein the transmission rod comprises a large diameter section and a small diameter section, a transition position of the large diameter section and the small diameter section is a step structure, a step surface of the step structure forms the stop surface, the adjusting tooth section is arranged on the large diameter section, and the guide matching section is arranged on the small diameter section.
3. The gas insulation test chamber as recited in claim 2, wherein the second fixing seat further comprises an adjustment fitting section having an internal thread, and the adjustment tooth section having an external thread, wherein the transmission rod is moved in the left-right direction by rotating the large diameter section.
4. A gas insulation test chamber as claimed in claim 3, wherein the adjustment fitting section and the guide section are integrally formed.
5. A gas insulation test chamber as claimed in any one of claims 1 to 4, wherein the first and/or second connectors are studs.
6. A gas insulation test chamber as claimed in any one of claims 1 to 4, wherein reinforcing ribs are provided on the inner and/or outer walls of the chamber body.
7. A gas insulation test chamber as claimed in any one of claims 1 to 4, wherein an explosion-proof valve is further provided on a side wall of the chamber body.
8. The gas insulation test chamber as claimed in claim 7, wherein the chamber body has a contact mounting opening, the gas insulation test chamber includes a cover plate that covers the contact mounting opening, and the explosion-proof valve is provided on the cover plate.
9. A gas insulation test chamber as claimed in any one of claims 1 to 4, wherein the side wall of the chamber body is further provided with a viewing window.
10. The gas insulation test chamber as recited in any one of claims 1 to 4, wherein the chamber body has a contact mounting opening, the gas insulation test chamber includes a cover plate that covers the contact mounting opening, the first fixing seat includes a cantilevered rod, and the first connection head is disposed on the cantilevered rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022647040.9U CN214375093U (en) | 2020-11-16 | 2020-11-16 | Gas insulation test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022647040.9U CN214375093U (en) | 2020-11-16 | 2020-11-16 | Gas insulation test box |
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| Publication Number | Publication Date |
|---|---|
| CN214375093U true CN214375093U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022647040.9U Active CN214375093U (en) | 2020-11-16 | 2020-11-16 | Gas insulation test box |
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| CN (1) | CN214375093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115308553A (en) * | 2022-09-14 | 2022-11-08 | 常州博瑞电力自动化设备有限公司 | Gas insulation test equipment |
-
2020
- 2020-11-16 CN CN202022647040.9U patent/CN214375093U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115308553A (en) * | 2022-09-14 | 2022-11-08 | 常州博瑞电力自动化设备有限公司 | Gas insulation test equipment |
| CN115308553B (en) * | 2022-09-14 | 2023-08-04 | 常州博瑞电力自动化设备有限公司 | Gas insulation test equipment |
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