CN202150431U - Recovery confirmation device for high-voltage fuse - Google Patents
Recovery confirmation device for high-voltage fuse Download PDFInfo
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- CN202150431U CN202150431U CN201120252150U CN201120252150U CN202150431U CN 202150431 U CN202150431 U CN 202150431U CN 201120252150 U CN201120252150 U CN 201120252150U CN 201120252150 U CN201120252150 U CN 201120252150U CN 202150431 U CN202150431 U CN 202150431U
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Abstract
The utility model provides a recovery confirmation device for a high-voltage fuse. The recovery confirmation device does not give out relatively great sound or electrical arc even in a short circuit state, and can confirm the recovery of a short circuit accident occurring at the load side of the high-voltage fuse. The recovery confirmation device for the high-voltage fuse (1) comprises a fuse cylinder substitutively accommodated in a main body insulator (10) and connected between an upper fixed electrode (21) and a lower fixed electrode arranged on the main body insulator (10), and a fuse cylinder provided with a current-limiting fuse unit (40), capable of displaying whether the fuse element of the current-limiting fuse unit fuses or not, and used for recovery confirmation.
Description
Technical field
The utility model relates to a kind of reset confirm device of high-tension fuse.
Background technology
In the past, known promising protection power distribution transformer etc. and the high-tension fuse (for example, announcing document 1) that is provided with, in porcelain system main body insulator, taking in the fuse tube referring to utility model.Be provided with upper electrode and lower electrode in this high-tension fuse.The fuse tube is connected upper electrode with lower electrode.In the upper end of fuse tube, be provided with the insulating cylinder of having fixed the tubular upper contact.In insulating cylinder, run through that the bottom contact with ring-type contact site being installed.Lower end at insulating cylinder is fixed with display barrel.Between bottom contact and display barrel, be provided with and suppress parts.In insulating cylinder, between top contact and bottom contact, be provided with expulsion fuse through suppressing the parts stretching.The electrical fuse element of expulsion fuse and fuse lead-in wire are connected in series.Front end at the fuse lead-in wire is provided with splicing ear.Splicing ear is fixedly clamped on the fixed part that is arranged on the contact of bottom.
Patent documentation 1: Chinese patent numbers 200820116158.5
Yet; High-tension fuse is used to carry out the connection and the disconnection of the electric current of transformer, motor or other machines; And protection transformer, motor or other machines can be not impaired because of overload or short circuit; But if expulsion fuse breaks off, then sometimes below emit bigger sound and electric arc (arc).And if when having changed expulsion fuse, short circuit is not restored, and then emits bigger sound and electric arc once more.So, even expectation has a kind of short circuit also can not emit than loud noise or electric arc and can confirm that short circuit accident that the load side at high-tension fuse takes place has or not the reset confirm device of the high-tension fuse of recovery.
The utility model content
The purpose of the utility model is, a kind of reset confirm device of high-tension fuse is provided, even short circuit can not emitted than loud noise or electric arc yet and can be confirmed that the short circuit accident that the load side at high-tension fuse takes place has or not recovery.
The reset confirm device of the high-tension fuse of the utility model; Thereby with high-tension fuse that distribution line is connected on flow through the electrical fuse element fusing that big electric current causes being incorporated in the fuse tube in the main body insulator because of short circuit after; Confirm whether distribution line restores from short-circuit condition; It is characterized in that; Comprise: substitute the fuse tube be accommodated in the said main body insulator and be connected between the upper electrode and lower electrode that is arranged on the said main body insulator, and in be provided with the reset confirm whether electrical fuse element current-limiting fuse, that show said current-limiting fuse fuse and use the fuse tube.
Preferably in the reset confirm device of the high-tension fuse of the utility model, also be included in front end and said reset confirm is installed is installed to the interior hook stick of said main body insulator with the fuse tube with the fuse tube and with this reset confirm.
Preferably in the reset confirm device of the high-tension fuse of the utility model; Said reset confirm is set on the current-limiting fuse formula high-tension fuse with the fuse tube, this current-limiting fuse formula high-tension fuse be connected with the connecting line that the connecting cylinder between the lower electrode is drawn from being installed in the upper electrode that is arranged in the said main body insulator.
Preferably in the reset confirm device of the high-tension fuse of the utility model; Said reset confirm is set on the current-limiting fuse device with the fuse tube, this current-limiting fuse device be connected with the connecting line that the connecting cylinder between the lower electrode is drawn from being installed in the upper electrode that is arranged in the said main body insulator.
Preferably in the reset confirm device of the high-tension fuse of the utility model; Said reset confirm with the fuse tube be set at the band current-limiting fuse shutter on, the shutter of this band current-limiting fuse be connected with the connecting line that the connecting cylinder between the lower electrode is drawn from being installed in the upper electrode that is arranged at said main body insulator quilt.
Preferably in the reset confirm device of the high-tension fuse of the utility model, said connecting cylinder and said hook stick form as one.
The utility model effect
According to the utility model, in high-tension fuse,, and can confirm to have or not recovery at the short circuit accident that the load side of high-tension fuse takes place even short circuit can not emitted than loud noise or electric arc yet.
Description of drawings
Fig. 1 shows to be inserted with the cutaway view of reset confirm with the high-tension fuse of fuse tube.
Fig. 2 shows that reset confirm is with the figure that be connected of fuse tube with hook stick.
Fig. 3 shows the figure of reset confirm with pitman.
Fig. 4 shows the reset confirm that is connected with pitman with the reset confirm cutaway view with high-tension fuse.
Fig. 5 shows the reset confirm that is connected with pitman with the reset confirm cutaway view with fuse unit.
Fig. 6 shows to be connected the cutaway view of reset confirm with shutter with reset confirm with pitman.
Symbol description
1 ... High-tension fuse; 2 ... Hook stick; 10 ... The main body insulator; 11 ... Upper chambers; 12 ... Bottom compartment; 15 ... The top lead-out wire; 18 ... The bottom lead-out wire; 21 ... The top fixed electrode; 22 ... The bottom fixed electrode; 25 ... Chimeric tube portion; 26 ... Barred body portion; 27 ... The hole; 30 ... The current-limiting fuse tube; 31 ... The top contact; 32 ... The bottom contact; 33 ... The incorporating section; 34 ... Contact rod; 35 ... The inner upper contact; 36 ... The inner lower contact; 37 ... Insulating cover; 38 ... Conductive plate; 39 ... Electrode cap; 39a ... Through hole; 39b ... Projection; 40 ... The current-limiting fuse unit; 41 ... Upper electrode; 42 ... Lower electrode; 43 ... The fusing display piece.
Embodiment
(the 1st execution mode)
High-tension fuse 1 has been taken in the main body insulator 10 of porcelain system and has not been given illustrated expulsion fuse tube when using usually.The high-tension fuse 1 of expulsion fuse tube has been installed, if flow through big electric current on the distribution line that is attached thereto because of short circuit has taken place, the then electrical fuse element of expulsion fuse tube fusing.In high-tension fuse 1, if electrical fuse element fusing, then the display barrel of expulsion fuse tube is outstanding from the lower end of main body insulator 10, thereby shows fusing.
The operator extracts the fuse tube that has fused from main body insulator 10, the fuse tube that more renews after the distribution line of short circuit is repaired.In the present embodiment, substitute and be installed in the expulsion fuse tube on the main body insulator 10, current-limiting fuse tube 30 is installed on the main body insulator 10, thereby confirm to restore.At this, current-limiting fuse tube 30 is equivalent to reset confirm and uses the fuse tube, plays a role as the reset confirm device.
As shown in Figure 1, the main body insulator 10 of high-tension fuse 1 forms cylindric.Be formed with columned upper chambers 11, and bottom compartment 12 in the inside of main body insulator 10.Conical upper mould awl 14 is installed on the upper end 13 of main body insulator 10.The external cable that on the top lead-out wire 15 of upper mould awl 14, is connecting distribution line.The top fixed electrode 21 of the tulip shape that is connected with top lead-out wire 15 is installed on the top of upper chambers 11.In addition, conical lower die awl 17 is installed on the lower sides 16 of main body insulator 10.On the bottom lead-out wire 18 of lower die awl 17, connecting the machines such as transformer that are located on the distribution line through external cable.The bottom fixed electrode 22 that is connected with bottom lead-out wire 18 is installed on the top of bottom compartment 12.On the upper chambers 11 of main body insulator 10, be equipped with arc extinguishing tube 23 cylindraceous.In the lower ending opening portion 19 of main body insulator 10, lower cover 20 is installed, when the expulsion fuse tube was installed, this lower cover 20 was with 19 cappings of lower ending opening portion.On this lower cover 20, the lid 20a with lower cover 20 cappings is installed with mode that can freely openable.In addition, current-limiting fuse tube 30 is installed to 10 last times of main body insulator, lower cover 20 is opened.
Current-limiting fuse tube 30 is to have formed lid insulating cylinder cylindraceous.Current-limiting fuse tube 30 is to be inserted into upper chambers 11 and bottom compartment 12 from the outstanding state of the lower ending opening portion 19 of main body insulator 10 downwards.In addition, the current-limiting fuse tube 30 that is inserted into contacts with top fixed electrode 21 and bottom fixed electrode 22.Be provided with the top contact 31 that is connected with top fixed electrode 21 in the upper end of current-limiting fuse tube 30.In addition, the pars intermedia at current-limiting fuse tube 30 is provided with the bottom contact 32 that is connected with bottom fixed electrode 22.Lower interior portion at current-limiting fuse tube 30 is formed with incorporating section 33, in this incorporating section 33, takes in current-limiting fuse unit 40.
On top contact 31, connecting the contact rod 34 that runs through incorporating section 33.The inner upper contact 35 of tulip shape is installed in the lower end of the contact rod 34 that is positioned at 33 tops, incorporating section.In addition, 33 bottom is equipped with circular inner lower contact 36 in the incorporating section.Between inner upper contact 35 and inner lower contact 36, be connected current-limiting fuse unit 40.Be respectively arranged with upper electrode 41 and lower electrode 42 in each end of current-limiting fuse unit 40.Be provided with electrical fuse element and arc extinguishing sand etc. in the inside of current-limiting fuse unit 40.
The outer surface of current-limiting fuse tube 30 is insulated cover 37 and covers.Between the outer surface and insulating cover 37 of current-limiting fuse tube 30, be provided with the conductive plate 38 that bottom contact 32 is connected with inner lower contact 36.Be installed with electrode cap 39 in the lower end of current-limiting fuse tube 30, this electrode cap 39 is with incorporating section 33 cappings, and inner lower contact 36 is housed in the electrode cap 39.Be provided with fusing display piece 43 in the bottom of current-limiting fuse unit 40, fusing display piece 43 is outstanding from the lower end when electrical fuse element fuses, thereby shows fusing.On electrode cap 39, be formed with through hole 39a, fusing display piece 43 can be outstanding from through hole 39a.
As shown in Figure 2, the lower, outer perimeter at the electrode cap 39 of current-limiting fuse tube 30 is formed with a pair of projection 39b that can engage and break away from hook stick 2.Hook stick 2 possesses: chimeric tube portion 25, and chimeric with the bottom of current-limiting fuse tube 30; And bar-shaped barred body portion 26, be connected with the bottom of chimeric tube portion 25.Chimeric tube portion 25 is provided with hole 27.
Current-limiting fuse tube 30 is installed to the inside of main body insulator 10 under the state that the front end with hook stick 2 engages.After current-limiting fuse tube 30 was installed on the main body insulator 10, the operator was from current-limiting fuse tube 30 unloading operations rod 2.Thus, owing to the operator operates the hook stick 2 that current-limiting fuse tube 30 is installed, so can under the state that leaves from high-tension fuse 1, carry out reset confirm.
As shown in Figure 1; If current-limiting fuse tube 30 is connected with top fixed electrode 21 and bottom fixed electrode 22, then the path with fixed electrode 22 → bottom, contact 32 → bottom, 40 → lower electrode, 42 → inner lower contact, 36 → conductive plate, 38 → bottom, contact 31 → contact rod 34 → inner upper contact 35 → upper electrode 41 → current-limiting fuse unit, fixed electrode 21 → top, lead-out wire 15 → top, top lead-out wire 18 forms electric loop.
At this moment, under the situation that the short circuit that takes place on the load side has been restored, current-limiting fuse unit 40 does not fuse, and fusing display piece 43 is 40 not outstanding from the current-limiting fuse unit.Therefore, extract current-limiting fuse tube 30, new expulsion fuse tube is installed from main body insulator 10.
On the other hand, under the situation that the short circuit that load side takes place is not restored, 40 fusing of current-limiting fuse unit, fusing display piece 43 is 40 outstanding from the current-limiting fuse unit.Therefore, can confirm to be in short-circuit condition, short circuit is not restored.Thus, can avoid emitting bigger sound or electric arc from lower ending opening portion 19 owing to the new expulsion fuse tube of installation on main body insulator 10 makes.
In addition, when having fused in current-limiting fuse unit 40, as long as change current-limiting fuse unit 40, profile portion that can regeneration current-limiting fuse tube 30.Therefore, as long as owing to buy current-limiting fuse unit 40, so both economical.
According to the execution mode of above explanation, can obtain following effect.
(1) established the current-limiting fuse tube 30 of current-limiting fuse unit 40 in connecting between top fixed electrode 21 on being arranged at the main body insulator 10 of high-tension fuse 1 and the bottom fixed electrode 22; Whether the current-limiting fuse unit 40 according to this current-limiting fuse tube 30 fuses, and judges whether distribution line restores from short-circuit condition.When being located at the blown fuse of the current-limiting fuse unit 40 in the current-limiting fuse tube 30, bigger sound or electric arc so can not take place in current-limiting fuse tube 30 arc extinguishings when fusing when interior.Thus, though short circuit, also can be under the situation of not emitting sound or electric arc, confirm whether the short circuit accident that the load side at high-tension fuse 1 takes place restores.In addition, can invalidly not cause the fusing of expulsion fuse tube.
(2) under the state of the front end that current-limiting fuse tube 30 is installed in hook stick 2, this current-limiting fuse tube 30 is installed in the main body insulator 10.Thus, the operator can carry out reset confirm, handling safety in the position of leaving from high-tension fuse 1.
(the 2nd execution mode)
In the reset confirm device of the high-tension fuse 1 of this execution mode; Substitute and be installed in the expulsion fuse tube on the main body insulator 10; Adopt following structure: between the top of high-tension fuse 1 fixed electrode 21 and bottom fixed electrode 22, be connected with pitman 50, in the connecting line of drawing from this pitman 50 51,52 is connecting, established the reset confirm of current-limiting fuse tube 30 and used high-tension fuse.
As shown in Figure 3, pitman 50 possesses: the connecting portion 53 that is connected with top fixed electrode 21 and bottom fixed electrode 22; And the bar-shaped barred body portion of controlling by the operator 56.That is to say that the connecting portion 53 that is equivalent to connecting cylinder constitutes one with the barred body portion 56 that is equivalent to hook stick.Connecting portion 53 is provided with: the top contact 54 that contacts with top fixed electrode 21; And the bottom contact 55 that contacts with bottom fixed electrode 22.Draw top connecting line 51 that is connected with top contact 54 and the bottom connecting line 52 that is connected with bottom contact 55 from the barred body portion 56 that connects group 50.
As shown in Figure 4, reset confirm with high-tension fuse 60 in, on top lead-out wire 61, connect top connecting line 51, on bottom lead-out wire 62, connect bottom connecting line 52.With high-tension fuse 1 identical ground; Reset confirm with high-tension fuse 60 in; The top fixed electrode 63 that is connected with top lead-out wire 61 contacts with the top contact 31 of current-limiting fuse tube 30, and the bottom fixed electrode 64 that is connected with bottom lead-out wire 62 contacts with the bottom contact 32 of current-limiting fuse tube 30.In current-limiting fuse tube 30, taking in current-limiting fuse unit 40.With the lower end of high-tension fuse 60 transparent seal bootr 65 is installed at reset confirm.In addition, this reset confirm can be arranged on high-tension fuse 60 on carriage or the ground of electric pole etc. or on the car body.Therefore, as long as pitman 50 is connected on the high-tension fuse 1, need not the heavier current-limiting fuse unit 40 that arc extinguishing sand etc. is housed is transported on the electric pole etc., operation is easy.Reset confirm is equivalent to current-limiting fuse formula high-tension fuse with high-tension fuse 60.
If the operator is installed to pitman 50 on the main body insulator 10, then between the top of high-tension fuse 1 fixed electrode 21 and bottom fixed electrode 22, be connected reset confirm with high-tension fuse 60.That is to say, form electric loop with fixed electrode 22 → bottom, contact 55 → bottom, connecting line 52 → bottom, lead-out wire 62 → bottom, fixed electrode 64 → bottom, contact 32 → bottom, 40 → bottom, contact 31 → current-limiting fuse unit, fixed electrode 63 → top, lead-out wire 61 → top, connecting line 51 → top, contact 54 → top, fixed electrode 21 → top, lead-out wire 15 → top, top lead-out wire 18 such paths.
At this moment, under the situation that the short circuit that load side takes place has been restored, current-limiting fuse unit 40 does not fuse, and the fusing display piece is 40 not outstanding from the current-limiting fuse unit.Therefore, extract pitman 50, new expulsion fuse tube is installed from main body insulator 10.
On the other hand, under the situation that the short circuit that load side takes place is not restored, 40 fusing of current-limiting fuse unit, the fusing display piece is 40 outstanding from the current-limiting fuse unit.Therefore, can confirm has short-circuit condition to the distribution line place, and short circuit is not restored.Thus, can avoid emitting bigger sound or electric arc from lower ending opening portion 19 owing to the new expulsion fuse tube of installation on main body insulator 10 makes.
In addition, when reset confirm has fused with the current-limiting fuse unit 40 of high-tension fuse 60,, just can carry out reset confirm once more as long as change current-limiting fuse tube 30.
According to the execution mode of above explanation, the effect (1) except the 1st execution mode can also obtain following effect.
(3) control the barred body portion 56 of pitman 50, the connecting portion 53 of pitman 50 is installed in the main body insulator 10.Thus, the operator can carry out reset confirm, handling safety in the position of leaving from high-tension fuse 1.
(4) pitman 50 is connected between the top fixed electrode 21 and bottom fixed electrode 22 that is arranged on the main body insulator 10; Whether fuse with the current-limiting fuse tube on the high-tension fuse 60 30 according to being arranged on the reset confirm that is connected with the connecting line of drawing 51,52, confirm whether distribution line restores from short-circuit condition from this pitman 50.Need not to be equipped with arc extinguishing sand etc. and heavier current-limiting fuse tube 30 is transported to the main body insulator 10 of the high-tension fuse 1 of short circuit, as long as pitman 50 is installed on the main body insulator 10, so confirm operation easily.
In addition, above-mentioned execution mode can also be implemented according to the following form of having done suitable change.
In above-mentioned the 2nd execution mode; The connecting portion 53 that will be equivalent to connecting cylinder forms as one with the barred body portion 56 that is equivalent to hook stick; But also can be as above-mentioned the 1st execution mode, can mode chimeric each other and that break away from forming connecting portion 53 and barred body portion 56 respectively independently.
In above-mentioned the 2nd execution mode; On the connecting line 51,52 of pitman 50, connected reset confirm with high-tension fuse 60; But also can substitute reset confirm with high-tension fuse 60, connect the reset confirm possess current-limiting fuse unit 40 with fuse unit 70 or the reset confirm that possesses current-limiting fuse unit 40 with the shutter 80 of being with current-limiting fuse.
Specifically, as shown in Figure 5, reset confirm with fuse unit 70 in, on right side lead-out wire 71, connect top connecting line 51, on left side lead-out wire 72, connect bottom connecting line 52.Reset confirm is incorporated in the housing 73 of case shape with fuse unit 70.On the mutual opposed sidewall of housing 73, run through prominent establishing right side sleeve pipe (bushing) 74 that is connected with right side lead-out wire 71 and the left side sleeve pipe 75 that is connected with left side lead-out wire 72 respectively.On each sleeve pipe 74,75, fixing right side fixed electrode 76 and left side fixed electrode 77 respectively.Then, between fixed electrode 76 and fixed electrode 77, current-limiting fuse unit 40 is installed.
In addition, as shown in Figure 6, in the shutter 80 of reset confirm, on right side lead-out wire 81, connect top connecting line 51 with the band current-limiting fuse, on left side lead-out wire 82, connect bottom connecting line 52.Reset confirm is incorporated in the housing 83 of case shape with the shutter 80 of band current-limiting fuse.On the mutual opposed sidewall of housing 83, run through prominent be provided with right side sleeve pipe 84 that is connected with right side lead-out wire 81 and the left side sleeve pipe 85 that is connected with left side lead-out wire 82 respectively.Left side sleeve pipe 85 is provided with fixed electrode 86.Right side sleeve pipe 84 is provided with movable electrode 87, this movable electrode 87 can with respect to fixed electrode 86 rotate and with fixed electrode 88 butts.Between movable electrode 87 and right side sleeve pipe 84, current-limiting fuse unit 40 is installed.Reset confirm was in off-state with the shutter 80 of band current-limiting fuse before pitman 50 is installed to high-tension fuse 1; After on the main body insulator 10 that pitman 50 is installed to high-tension fuse 1, make the shutter 80 energising contacts of reset confirm with the band current-limiting fuse.Through adopting this structure, can carry out the connection and the reset confirm of pitman 50 respectively.
In above-mentioned the 1st execution mode, current-limiting fuse tube 30 is installed on hook stick 2, but also can hook stick 2 and current-limiting fuse tube 30 be formed as one.According to this structure, because current-limiting fuse tube 30 forms as one with hook stick 2, so need not current-limiting fuse tube 30 is installed on hook stick 2, the operator can easily confirm operation, confirms while can watch.
Claims (7)
1. the reset confirm device of a high-tension fuse; Thereby with high-tension fuse that distribution line is connected on flow through the electrical fuse element fusing that big electric current causes being incorporated in the fuse tube in the main body insulator because of short circuit after; Confirm whether distribution line restores from short-circuit condition; It is characterized in that
Comprise: substitute the fuse tube be accommodated in the said main body insulator and be connected between the upper electrode and lower electrode that is arranged on the said main body insulator, and in be provided with the reset confirm whether electrical fuse element current-limiting fuse, that show said current-limiting fuse fuse and use the fuse tube.
2. the reset confirm device of high-tension fuse according to claim 1 is characterized in that,
Also being included in front end installs said reset confirm and is installed to the interior hook stick of said main body insulator with the fuse tube and with this reset confirm with the fuse tube.
3. the reset confirm device of high-tension fuse according to claim 1 is characterized in that,
Said reset confirm is set on the current-limiting fuse formula high-tension fuse with the fuse tube, this current-limiting fuse formula high-tension fuse be connected with the connecting line that the connecting cylinder between the lower electrode is drawn from being installed in the upper electrode that is arranged in the said main body insulator.
4. the reset confirm device of high-tension fuse according to claim 1 is characterized in that,
Said reset confirm is set on the current-limiting fuse device with the fuse tube, this current-limiting fuse device be connected with the connecting line that the connecting cylinder between the lower electrode is drawn from being installed in the upper electrode that is arranged in the said main body insulator.
5. the reset confirm device of high-tension fuse according to claim 1 is characterized in that,
Said reset confirm with the fuse tube be set at the band current-limiting fuse shutter on, the shutter of this band current-limiting fuse be connected with the connecting line that the connecting cylinder between the lower electrode is drawn from being installed in the upper electrode that is arranged at said main body insulator quilt.
6. according to the reset confirm device of any described high-tension fuse of claim 3～5, it is characterized in that,
Also being included in front end installs said reset confirm and is installed to the interior hook stick of said main body insulator with the fuse tube and with this reset confirm with the fuse tube.
7. the reset confirm device of high-tension fuse according to claim 6 is characterized in that,
Said connecting cylinder and said hook stick form as one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120252150U CN202150431U (en) | 2011-07-07 | 2011-07-07 | Recovery confirmation device for high-voltage fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120252150U CN202150431U (en) | 2011-07-07 | 2011-07-07 | Recovery confirmation device for high-voltage fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202150431U true CN202150431U (en) | 2012-02-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120252150U Expired - Fee Related CN202150431U (en) | 2011-07-07 | 2011-07-07 | Recovery confirmation device for high-voltage fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202150431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108496237A (en) * | 2016-01-18 | 2018-09-04 | 日本高压电气株式会社 | Operation stick |
-
2011
- 2011-07-07 CN CN201120252150U patent/CN202150431U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108496237A (en) * | 2016-01-18 | 2018-09-04 | 日本高压电气株式会社 | Operation stick |
| CN108496237B (en) * | 2016-01-18 | 2019-05-21 | 日本高压电气株式会社 | Operation stick |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120222 Termination date: 20160707 |
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| CF01 | Termination of patent right due to non-payment of annual fee |