CN208295203U - A kind of vacuum circuit breaker check (non-return) valve and vacuum circuit breaker - Google Patents
A kind of vacuum circuit breaker check (non-return) valve and vacuum circuit breaker Download PDFInfo
- Publication number
- CN208295203U CN208295203U CN201820950055.2U CN201820950055U CN208295203U CN 208295203 U CN208295203 U CN 208295203U CN 201820950055 U CN201820950055 U CN 201820950055U CN 208295203 U CN208295203 U CN 208295203U
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- Prior art keywords
- circuit breaker
- vacuum circuit
- shell
- valve
- return
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Abstract
The utility model discloses a kind of vacuum circuit breaker check (non-return) valve and vacuum circuit breaker.The technical solution of use includes valve body, the valve body has the first air inlet, the first gas outlet and the inner cavity for being connected to the first air inlet and the first gas outlet, the inner cavity is equipped with spring, plug, the plug is blocked to the first air inlet by spring, it is characterized by: the valve body upper end is threadedly coupled with grommet nut, lower end and through-hole nut thread are connect, the plug upper end has the press section for stretching out the body cavity, which is equipped with the second air inlet, lower end is equipped at least one second gas outlet.
Description
Technical field
The utility model relates to a kind of vacuum circuit breaker check (non-return) valve and vacuum circuit breakers.
Background technique
The dielectric of vacuum circuit breaker contact gap after its arc-extinguishing medium and arc extinguishing is gained the name due to being all high vacuum.Vacuum
Usually all filled with SF6(sulfur hexafluoride in the shell of open circuit) gas, it needs first to take out the intracorporal air of shell before inflation.It is existing
Inflating port on shell is generally bypass structure, could not such as tighten grommet nut in time, and air can be reentered immediately, therefore very
Difficulty vacuumizes shell.Equally, grommet nut could not be such as tightened after gas is substituted the bad for the good in time, will also result in gas (sulfur hexafluoride)
Flight.In addition, sealing simply by grommet nut, sealing performance is poor, easily causes the leakage of gas.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of vacuum circuit breaker check (non-return) valve and pole vacuum open circuits
Device.
To solve the above problems, the technical solution adopted in the utility model includes valve body, the valve body has the first air inlet
Mouth, the first gas outlet and the inner cavity for being connected to the first air inlet and the first gas outlet, the inner cavity are equipped with spring, plug,
Block the plug to the first air inlet by spring, it is characterised in that: the valve body upper end and grommet nut screw thread
Connection, lower end and through-hole nut thread connect, and the plug upper end has the press section for stretching out the body cavity, the press section
Upper end is equipped with the second air inlet, lower end is equipped at least one second gas outlet.
The vacuum circuit breaker check (non-return) valve, it is characterised in that: the first sealing is equipped between the grommet nut and valve body
Circle.
The vacuum circuit breaker check (non-return) valve, it is characterised in that: it is close that second is equipped between the plug and the first air inlet
Seal.
A kind of vacuum circuit breaker is realized according to vacuum circuit breaker check (non-return) valve described above, including shell and setting
Sealing strip is equipped between the top cover of the opening of shell, the top cover and the junction of shell, it is characterised in that: the top cover
On the vacuum circuit breaker check (non-return) valve is installed.
The vacuum circuit breaker, it is characterised in that: the through-hole nut-welding of the vacuum circuit breaker check (non-return) valve in
Below the mounting hole of the top cover, the valve body is connected with the top cover by through-hole nut.
The vacuum circuit breaker, it is characterised in that: the shell is by mutually isolated first shell, second shell
It forms, is respectively mounted the vacuum circuit breaker check (non-return) valve in the first shell, second shell.
The vacuum circuit breaker, it is characterised in that: the top cover is surrounded by press strip, and the press strip both ends pass through
Bolt is connect with shell.
The vacuum circuit breaker check (non-return) valve and vacuum circuit breaker advantage of the utility model are as follows: gas can be effectively prevented
Escape in vitro and prevent outside air from entering shell.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the utility model vacuum circuit breaker check (non-return) valve；
Fig. 2 is the front view of the utility model vacuum circuit breaker；
Fig. 3 is the top view of the utility model vacuum circuit breaker；
Fig. 4 is the partial enlarged view of Fig. 3.
Specific embodiment
As shown in Figure 1, the vacuum circuit breaker check (non-return) valve of the utility model, including valve body 1, the valve body 1 have first into
Port 2, the first gas outlet 3 and the inner cavity 4 for being connected to the first air inlet 2 with the first gas outlet 3, the inner cavity 4 are equipped with bullet
Spring 5, plug 6.Body base is supported in 5 lower end of spring, upper end resists above plug, makes the plug 6 by the elasticity of spring 5
First air inlet 2 is blocked.1 upper end of valve body is threadedly coupled with grommet nut 7, lower end and 8 screw thread of through-hole nut connect
Connect, 6 upper end of plug has a press section 9 for stretching out 1 inner cavity of valve body, 9 upper end of press section be equipped with the second air inlet 10,
Lower end is equipped with multiple second gas outlets 11.When inflation, air inflation nozzle is directed at press section, and is pushed, and makes the of press section lower end
Two gas outlets enter the inner cavity of valve body, realize inflation.It substitutes the bad for the good after gas, plug is automatically reset by the pressure of spring, is realized non-return.
Further, the first sealing ring 12 is equipped between the grommet nut 7 and valve body 1.The plug 6 and the first air inlet
The second sealing ring 13 is equipped between mouth 2.To reinforce sealing effect.
Embodiment 2:
As in Figure 2-4, the vacuum circuit breaker (referring to the breaker installed and operated on electric pole) of the utility model.
It is realized according to vacuum circuit breaker check (non-return) valve described in embodiment 1, the top cover including shell 14 and the opening that shell 14 is arranged in
15, it is equipped between the top cover 15 and the junction of shell 14 on top cover 15 described in sealing strip 16 and the vacuum circuit breaker is installed
Check (non-return) valve a.Specifically, the through-hole nut 8 of the vacuum circuit breaker check (non-return) valve is welded in below the mounting hole of the top cover 15, institute
Valve body 1 is stated to connect by through-hole nut 8 with the top cover 15.
Further, the shell 14 is made of mutually isolated first shell 141, second shell 142, the first shell
Installation circuit breaker element in vivo, installs operating element in the second shell, in the first shell 141, second shell 142
The vacuum circuit breaker check (non-return) valve a is installed.To further increase isolation effect, outside air is prevented to cannot be introduced into.
Further, the top cover 15 is surrounded by press strip 18, and 18 both ends of press strip are connected by bolt 19 and shell 14
It connects.By press strip to compress top cover, to improve the sealing performance of shell.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., is all contained in the protection of the utility model within novel spirit and principle
Within the scope of.
Claims (7)
1. a kind of vacuum circuit breaker check (non-return) valve, including valve body (1), the valve body (1) has the first air inlet (2), the first outlet
Mouth (3) and the inner cavity (4) for being connected to the first air inlet (2) with the first gas outlet (3), the inner cavity (4) are equipped with spring
(5), plug (6) block the plug (6) to the first air inlet (2) by spring (5), it is characterised in that: the valve
Body (1) upper end is threadedly coupled with grommet nut (7), lower end is threadedly coupled with through-hole nut (8), and plug (6) upper end has
The press section (9) of the valve body (1) inner cavity is stretched out, which is equipped with the second air inlet (10), lower end is equipped at least
One the second gas outlet (11).
2. vacuum circuit breaker check (non-return) valve according to claim 1, it is characterised in that: the grommet nut (7) and valve body (1)
Between be equipped with the first sealing ring (12).
3. vacuum circuit breaker check (non-return) valve according to claim 1, it is characterised in that: the plug (6) and the first air inlet
(2) the second sealing ring (13) are equipped between.
4. a kind of vacuum circuit breaker, any one of -3 vacuum circuit breaker check (non-return) valves are realized according to claim 1, including shell
Body (14) and setting shell (14) opening top cover (15), between the top cover (15) and the junction of shell (14)
Equipped with sealing strip (16), it is characterised in that: be equipped with the vacuum circuit breaker check (non-return) valve (a) on the top cover (15).
5. vacuum circuit breaker according to claim 4, it is characterised in that: the through-hole of the vacuum circuit breaker check (non-return) valve
Nut (8) is welded in below the mounting hole of the top cover (15), and the valve body (1) passes through through-hole nut (8) and the top cover
(15) it connects.
6. vacuum circuit breaker according to claim 4, it is characterised in that: the shell (14) is by mutually isolated
One shell (141), second shell (142) composition, the first shell (141), second shell are respectively mounted the vacuum on (142)
Breaker check (non-return) valve (a).
7. vacuum circuit breaker according to claim 4, it is characterised in that: the top cover (15) is surrounded by press strip
(18), press strip (18) both ends are connect by bolt (19) with shell (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820950055.2U CN208295203U (en) | 2018-06-20 | 2018-06-20 | A kind of vacuum circuit breaker check (non-return) valve and vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820950055.2U CN208295203U (en) | 2018-06-20 | 2018-06-20 | A kind of vacuum circuit breaker check (non-return) valve and vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208295203U true CN208295203U (en) | 2018-12-28 |
Family
ID=64702317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820950055.2U Active CN208295203U (en) | 2018-06-20 | 2018-06-20 | A kind of vacuum circuit breaker check (non-return) valve and vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208295203U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363108A (en) * | 2021-06-02 | 2021-09-07 | 安徽华希电力科技有限公司 | One-time and two-time integrated complete-set pole-mounted circuit breaker with good sealing performance |
-
2018
- 2018-06-20 CN CN201820950055.2U patent/CN208295203U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363108A (en) * | 2021-06-02 | 2021-09-07 | 安徽华希电力科技有限公司 | One-time and two-time integrated complete-set pole-mounted circuit breaker with good sealing performance |
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