CN209217562U - A kind of air insulation vacuum load switch - Google Patents
A kind of air insulation vacuum load switch Download PDFInfo
- Publication number
- CN209217562U CN209217562U CN201821761949.3U CN201821761949U CN209217562U CN 209217562 U CN209217562 U CN 209217562U CN 201821761949 U CN201821761949 U CN 201821761949U CN 209217562 U CN209217562 U CN 209217562U
- Authority
- CN
- China
- Prior art keywords
- wall
- fixedly installed
- mounting
- bar
- load switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of air insulation vacuum load switch, including ring network cabinet and Switch main body, the Switch main body is located in ring network cabinet, mounting bar is fixedly installed on the side inner wall of ring network cabinet, the top side of mounting bar offers mounting groove, the bottom side of Switch main body is fixedly installed with mounting rod, the bottom end of mounting rod extends in mounting groove, the lower section of mounting groove is equipped with the installation cavity being provided on mounting bar, the same slide bar is slidably fitted on the two sides inner wall of installation cavity, there are two movable blocks for pivot bush unit on slide bar, the top side of two movable blocks is rotatably equipped with connecting rod, one end that two connecting rods are located remotely from each other is rotatably installed in respectively on the two sides inner wall of installation cavity.The utility model structure is simple, mounting rod can be firmly clamped by two clamping plates, so that Switch main body can convenient and fast installing and dismounting, traditional bolted mode is changed, to effectively avoid because of the problem of being difficult to dismounting and change caused by bolt corrosion.
Description
Technical field
The utility model relates to vacuum load switch technical field more particularly to a kind of air insulation vacuum load switch.
Background technique
On-load switch is a kind of device for switching between breaker and disconnecting switch, has simple arc-control device,
Rated load current and certain overload current can be cut off, but short circuit current cannot be cut off.
Publication No. CN207947548U discloses a kind of air-insulated type intelligent vacuum ring network cabinet, is equipped with mother in bus-bar room
Wire casing and the first temperature sensor, but Switch main body is installed still through bolt in this device, bolt easily becomes rusty when used for a long time
Erosion is made troubles for maintenance replacement, and this technology charter according to JB/DQZ0133.390, " compile by electric product pattern and technological document
Directive/guide technological work instructions processed are write, and according to all insulation, gamut circuit breaker design and compact structure design principle, and meet state
Family standard GB3906 < 3.6kV ~ 40.5kV ac metal closing switch gear and control equipment ", GB1984 " high-voltage alternating open circuit
Device " and GB/T11022 " common specifications for high-voltage switchgear and controlgear standards " requirement.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of air insulation proposed is true
Airport logistic park switch.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of air insulation vacuum load switch, including ring network cabinet and Switch main body, the Switch main body are located at ring network cabinet
It is interior, mounting bar is fixedly installed on the side inner wall of ring network cabinet, the top side of mounting bar offers mounting groove, the bottom side of Switch main body
It is fixedly installed with mounting rod, the bottom end of mounting rod extends in mounting groove, and the lower section of mounting groove, which is equipped with, to be provided on mounting bar
Installation cavity is slidably fitted with the same slide bar on the two sides inner wall of installation cavity, and pivot bush unit is there are two movable block on slide bar, and two
The top side of movable block is rotatably equipped with connecting rod, and one end that two connecting rods are located remotely from each other is rotatably installed in installation cavity respectively
On the inner wall of two sides, through-hole is offered on the top side inner wall of installation cavity, two connecting rods side close to each other is equipped with and fixes respectively
The top of the push rod being mounted on two movable block top sides, two push rods all extends in through-hole, and the side of two push rods turns
Dynamic to be equipped with V-type bar, the top of two V-type bars all extends in mounting groove and is fixedly installed with respectively clamping plate, two clamping plates point
Not Wei Yu mounting rod two sides, offer shifting slot in the horizontal direction on the two sides inner wall of the through-hole, two V-type bars are mutually remote
From side be fixedly installed with pull rod, one end that two pull rods are located remotely from each other extends respectively in two shifting slots, the slide bar
Bottom side be fixedly installed with fixed block, the bottom side of fixed block offers loose slot, mandril, installation cavity is movably installed in loose slot
Bottom side inner wall on offer elliptical aperture, elliptical aperture is run through in the bottom end of mandril.
Preferably, sliding groove is offered on the bottom side inner wall of two shifting slots, is slidably fitted with cunning in two sliding grooves
Motion block, the top side of two sliding shoes are respectively and fixedly installed on the bottom side of two pull rods, two sliding shoes side close to each other
It is fixedly installed with one end of spring, two spring one end close to each other are respectively and fixedly installed to close to each other one of sliding groove
On the inner wall of side.
Preferably, annular offers swivelling chute on the inner wall of the loose slot, and spill spin block is movably installed in swivelling chute, top
The top of bar is fixedly mounted on the bottom side of spill spin block.
Preferably, annular offers multiple card slots on the inner wall of the elliptical aperture, and the two sides of mandril are fixedly installed with card
Block, the side that two fixture blocks are located remotely from each other all extend in card slot.
Preferably, the bottom end of the mandril is fixedly installed with pulling block, is socketed with rubber protecting jacket on pulling block.
Preferably, the side of the push rod offers turn hole, and shaft, the fixed peace in one end of shaft are movably installed in turn hole
Mounted in V-type bar on the side of push rod.
Preferably, two clamping plates side close to each other is fixedly installed with fastening rubber pad, two fastening rubber pad phases
Mutually close side is adapted with the two sides of mounting rod respectively.
Preferably, the top of the Switch main body is equipped with bus-bar room, is equipped with multiple partitions in bus-bar room.
Preferably, sliding slot is offered on the two sides inner wall of the installation cavity, is slidably fitted with sliding block in two sliding slots,
The both ends of slide bar are respectively and fixedly installed on two sliding block sides close to each other.
Preferably, two movable block sides close to each other offer moving hole, and one end of slide bar sequentially passes through two
Moving hole.
Compared with prior art, the utility model has the beneficial effects that
In the utility model, pass through ring network cabinet, mounting bar, mounting groove, mounting rod, Switch main body, installation cavity, sliding slot, cunning
Block, slide bar, movable block, moving hole, connecting rod, fixed block, loose slot, swivelling chute, spill spin block, mandril, pulling block, elliptical aperture, card
Slot, fixture block, bus-bar room, partition are used cooperatively, and when needing to install, moving switch ontology makes mounting rod enter installation first
In slot, installation site is then adjusted, moves mounting rod at this time, moves it in mounting groove, when the desired position is reached, pushed
Pulling block makes mandril mobile, and the mobile band moving slide-bar of mandril is mobile, and slide bar is mobile so that two movable blocks slide on slide bar, passes through
Ring network cabinet, mounting bar, mounting groove, mounting rod, Switch main body, installation cavity, sliding slot, sliding block, slide bar, movable block, moving hole, connection
Bar, through-hole, V-type bar, clamping plate, moves slot, pull rod, turn hole, shaft, sliding shoe, sliding groove, mandril, pulling block, elliptical aperture, card at push rod
Slot, fixture block are used cooperatively, so that two movable blocks drive two push rods mobile respectively, two push rod movements drive two respectively
A V-type bar is close to each other, and two V-type bars are close to each other to drive two pull rods close to each other respectively, and two close to each other point of pull rod
Not Tong Guo two sliding shoes drive two spring stress to shrink, two V-type bars are close to each other at this time, enable two clamping plates jails
Solid clamp mounting rod, then rotate mandril, so that two fixture blocks enter in a corresponding card slot, can be completed
Installation, similarly can easily dismantle；
The utility model structure is simple, mounting rod can be firmly clamped by two clamping plates, so that Switch main body
Can convenient and fast installing and dismounting, change traditional bolted mode, thus effectively avoid because bolt corrosion make
At the problem of being difficult to dismounting and change.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of air insulation vacuum load switch side structure schematic view；
Fig. 2 be the utility model proposes a kind of air insulation vacuum load switch overlooking structure diagram；
Fig. 3 be the utility model proposes a kind of air insulation vacuum load switch Fig. 1 in part A structural representation
Figure；
Fig. 4 be the utility model proposes a kind of air insulation vacuum load switch Fig. 3 in the part A1 structural representation
Figure；
Fig. 5 be the utility model proposes a kind of air insulation vacuum load switch Fig. 3 in the part A2 structural representation
Figure.
In figure: 1 ring network cabinet, 2 mounting bars, 3 mounting grooves, 4 mounting rods, 5 Switch main bodies, 6 installation cavitys, 7 sliding slots, 8 sliding blocks, 9
Slot, 18 pull rods, 19 are moved in slide bar, 10 movable blocks, 11 moving hole, 12 connecting rods, 13 push rods, 14 through-holes, 15V type bar, 16 clamping plates, 17
Turn hole, 20 shafts, 21 sliding shoes, 22 sliding grooves, 23 fixed blocks, 24 loose slots, 25 swivelling chutes, 26 spill spin blocks, 27 mandrils, 28 are drawn
Block, 29 elliptical apertures, 30 card slots, 31 fixture blocks, 32 bus-bar rooms, 33 partitions.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-5, a kind of air insulation vacuum load switch, including ring network cabinet 1 and Switch main body 5, Switch main body 5
In in ring network cabinet 1, mounting bar 2 is fixedly installed on the side inner wall of ring network cabinet 1, the top side of mounting bar 2 offers mounting groove 3,
The bottom side of Switch main body 5 is fixedly installed with mounting rod 4, and the bottom end of mounting rod 4 extends in mounting groove 3, and the lower section of mounting groove 3 is set
There is the installation cavity 6 being provided on mounting bar 2, the same slide bar 9 is slidably fitted on the two sides inner wall of installation cavity 6, is lived on slide bar 9
There are two movable block 10, the top side of two movable blocks 10 is rotatably equipped with connecting rod 12 for dynamic socket, and two connecting rods 12 are mutual
Separate one end is rotatably installed in respectively on the two sides inner wall of installation cavity 6, offers through-hole 14 on the top side inner wall of installation cavity 6,
Two connecting rods 12 side close to each other is equipped with the push rod 13 being respectively and fixedly installed on two 10 top sides of movable block, and two push away
The top of bar 13 all extends in through-hole 14, and the side of two push rods 13 is rotatably equipped with V-type bar 15, two V-type bars 15
Top all extends in mounting groove 3 and is fixedly installed with clamping plate 16 respectively, and two clamping plates 16 are located at the two sides of mounting rod 4,
It is offered in the horizontal direction on the two sides inner wall of through-hole 14 and moves slot 17, the fixed peace in the side that two V-type bars 15 are located remotely from each other
Equipped with pull rod 18, one end that two pull rods 18 are located remotely from each other is extended respectively in two shifting slots 17, and the bottom side of slide bar 9 is fixedly mounted
There is fixed block 23, the bottom side of fixed block 23 offers loose slot 24, mandril 27 is movably installed in loose slot 24, installation cavity 6
Offering elliptical aperture 29 on the inner wall of bottom side, elliptical aperture 29 is run through in the bottom end of mandril 27, when needing to install, moving switch sheet first
Body 5 enters mounting rod 4 in mounting groove 3, then adjusts installation site, moves mounting rod 4 at this time, makes it in mounting groove 3
Interior movement pushes pulling block 28 to make mandril 27 mobile when the desired position is reached, and the mobile band moving slide-bar 9 of mandril 27 is mobile, slide bar
9 is mobile so that two movable blocks 10 slide on slide bar 9, so that two movable blocks 10 drive two push rods 13 to move respectively
It is dynamic.
Sliding groove 22 is offered on the bottom side inner wall of two shifting slots 17, is slidably fitted with sliding in two sliding grooves 22
Block 21, the top side of two sliding shoes 21 are respectively and fixedly installed on the bottom side of two pull rods 18, and two sliding shoes 21 are close to each other
Side be fixedly installed with one end of spring, it is mutual that two spring one end close to each other are respectively and fixedly installed to sliding groove 22
On close side inner wall, annular offers swivelling chute 25 on the inner wall of loose slot 24, and rotation is movably installed in swivelling chute 25
Block 26, the top of mandril 27 are fixedly mounted on the bottom side of spill spin block 26, and annular offers multiple cards on the inner wall of elliptical aperture 29
Slot 30, the two sides of mandril 27 are fixedly installed with fixture block 31, and the side that two fixture blocks 31 are located remotely from each other all extends in card slot 30,
The bottom end of mandril 27 is fixedly installed with pulling block 28, and rubber protecting jacket is socketed on pulling block 28, and the side of push rod 13 offers turn hole
19, shaft 20 is movably installed in turn hole 19, one end of shaft 20 is fixedly mounted on V-type bar 15 on the side of push rod 13,
Two clamping plates 16 side close to each other is fixedly installed with fastening rubber pad, two fastening rubber pads side point close to each other
It not being adapted with the two sides of mounting rod 4, the top of Switch main body 5 is equipped with bus-bar room 32, multiple partitions 33 are equipped in bus-bar room 32,
Sliding slot 7 is offered on the two sides inner wall of installation cavity 6, and sliding block 8, the both ends difference of slide bar 9 are slidably fitted in two sliding slots 7
It is fixedly mounted on two sides close to each other of sliding block 8, two sides close to each other of movable block 10 offer moving hole
11, one end of slide bar 9 sequentially passes through two moving hole 11, and two push rods 13 are mobile to drive two V-type bars 15 close to each other respectively,
Two V-type bars 15 are close to each other to drive two pull rods 18 close to each other respectively, and two pull rods 18 are close to each other to pass through two respectively
Sliding shoe 21 drives two spring stress to shrink, and two V-type bars 15 are close to each other at this time, enable two clamping plates 16 firm
Mounting rod 4 is clamped, mandril 27 is then rotated, so that two fixture blocks 31 enter in a corresponding card slot 30
Installation is completed, similarly can easily be dismantled.
Working principle: when needing to install, moving switch ontology 5 enters mounting rod 4 in mounting groove 3 first, so
After adjust installation site, move mounting rod 4 at this time, move it in mounting groove 3, when the desired position is reached, push pulling block
28 make mandril 27 mobile, and the mobile band moving slide-bar 9 of mandril 27 is mobile, and slide bar 9 is mobile so that two movable blocks 10 are sliding on slide bar 9
Dynamic, so that two movable blocks 10 drive two push rods 13 mobile respectively, two push rods 13 are mobile to drive two V-type bars respectively
15 is close to each other, and two V-type bars 15 are close to each other to drive two pull rods 18 close to each other respectively, and two 18 close to each other points of pull rod
Not Tong Guo two sliding shoes 21 drive two spring stress to shrink, two V-type bars 15 are close to each other at this time, so that two clamping plates 16
Mounting rod 4 can be firmly clamped, mandril 27 is then rotated, so that two fixture blocks 31 enter a corresponding card slot
In 30, installation can be completed, similarly can easily dismantle, the utility model proposes a kind of GFZNO-12/T630-25 air is exhausted
Edge type vacuum load switch is a kind of 12KV compact air insulation sealed-box type switchgear/ring of mating non-SF 6 gas insulative
The high voltage device of net cabinet, can be used as 10kV electrical power distribution system ring network power supply and distribution terminal is used, the maximum temperature+40C of surrounding
Average value is not more than+35 °C of minimum temperature -10C, height above sea level≤1000m, and the per day relative humidity of humidity is not more than 95% monthly average phase
90% is not more than to humidity, earthquake intensity is no more than 8 degree, without fire, explosion danger, pollution severity, chemical attack and acutely vibration
Dynamic place, outside the connecting line at the connecting terminal of electric display device, all subsidiary loop conducting wire applied metal partitions, plastics row
Wire casing or insulation tube separate it with major loop, and gas tank is made of stainless steel plate, can reach the degree of protection of IP67, have good
Air-tightness.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (10)
1. a kind of air insulation vacuum load switch, including ring network cabinet (1) and Switch main body (5), which is characterized in that the switch
Ontology (5) is located in ring network cabinet (1), is fixedly installed on the side inner wall of ring network cabinet (1) mounting bar (2), the top of mounting bar (2)
Side offers mounting groove (3), and the bottom side of Switch main body (5) is fixedly installed with mounting rod (4), and the bottom end of mounting rod (4) extends to
In mounting groove (3), the lower section of mounting groove (3) is equipped with the installation cavity (6) being provided on mounting bar (2), in the two sides of installation cavity (6)
It is slidably fitted on wall the same slide bar (9), there are two movable block (10), two movable blocks (10) for pivot bush unit on slide bar (9)
Top side be rotatably equipped with connecting rod (12), one end that two connecting rods (12) are located remotely from each other is rotatably installed in installation cavity respectively
(6) it on two sides inner wall, is offered on the top side inner wall of installation cavity (6) through-hole (14), two connecting rods (12) are close to each other
Side is equipped with the push rod (13) being respectively and fixedly installed on two movable block (10) top sides, and the top of two push rods (13) extends
In to through-hole (14), the side of two push rods (13) is rotatably equipped with V-type bar (15), and the top of two V-type bars (15) is prolonged
It extending in mounting groove (3) and is fixedly installed with respectively clamping plate (16), two clamping plates (16) are located at the two sides of mounting rod (4),
Offered in the horizontal direction on the two sides inner wall of the through-hole (14) move slot (17), two V-type bars (15) be located remotely from each other one
Side is fixedly installed with pull rod (18), and one end that two pull rods (18) are located remotely from each other extends respectively in two shifting slots (17), institute
The bottom side for stating slide bar (9) is fixedly installed with fixed block (23), and the bottom side of fixed block (23) offers loose slot (24), loose slot
(24) it is movably installed with mandril (27), is offered on the bottom side inner wall of installation cavity (6) elliptical aperture (29), the bottom end of mandril (27) in
Through elliptical aperture (29).
2. a kind of air insulation vacuum load switch according to claim 1, which is characterized in that two are moved the bottom of slot (17)
It offers sliding groove (22), is slidably fitted with sliding shoe (21) in two sliding grooves (22), two sliding shoes on the inner wall of side
(21) top side is respectively and fixedly installed on the bottom side of two pull rods (18), and two sliding shoe (21) sides close to each other are solid
Dingan County is equipped with one end of spring, and two spring one end close to each other are respectively and fixedly installed to close to each other one of sliding groove (22)
On the inner wall of side.
3. a kind of air insulation vacuum load switch according to claim 1, which is characterized in that the loose slot (24)
Annular offers swivelling chute (25) on inner wall, is movably installed with spill spin block (26) in swivelling chute (25), and the top of mandril (27) is solid
Dingan County is on the bottom side of spill spin block (26).
4. a kind of air insulation vacuum load switch according to claim 1, which is characterized in that the elliptical aperture (29)
Annular offers multiple card slots (30) on inner wall, and the two sides of mandril (27) are fixedly installed with fixture block (31), two fixture blocks (31)
The side being located remotely from each other all extends in card slot (30).
5. a kind of air insulation vacuum load switch according to claim 1, which is characterized in that the bottom of the mandril (27)
End is fixedly installed with pulling block (28), and pulling block is socketed with rubber protecting jacket on (28).
6. a kind of air insulation vacuum load switch according to claim 1, which is characterized in that the one of the push rod (13)
Side offers turn hole (19), is movably installed with shaft (20) in turn hole (19), one end of shaft (20) is fixedly mounted on V-type bar
(15) on the side of push rod (13).
7. a kind of air insulation vacuum load switch according to claim 1, which is characterized in that two clamping plates (16) are mutual
Close side is fixedly installed with fastening rubber pad, two fastening rubber pads side close to each other respectively with mounting rod (4)
Two sides be adapted.
8. a kind of air insulation vacuum load switch according to claim 1, which is characterized in that the Switch main body (5)
Top be equipped with bus-bar room (32), be equipped with multiple partitions (33) in bus-bar room (32).
9. a kind of air insulation vacuum load switch according to claim 1, which is characterized in that the installation cavity (6)
It offers on the inner wall of two sides sliding slot (7), is slidably fitted with sliding block (8) in two sliding slots (7), the both ends difference of slide bar (9)
It is fixedly mounted on two sliding block (8) sides close to each other.
10. a kind of air insulation vacuum load switch according to claim 1, which is characterized in that two movable blocks (10)
Side close to each other offers moving hole (11), and one end of slide bar (9) sequentially passes through two moving hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821761949.3U CN209217562U (en) | 2018-10-29 | 2018-10-29 | A kind of air insulation vacuum load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821761949.3U CN209217562U (en) | 2018-10-29 | 2018-10-29 | A kind of air insulation vacuum load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209217562U true CN209217562U (en) | 2019-08-06 |
Family
ID=67457339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821761949.3U Active CN209217562U (en) | 2018-10-29 | 2018-10-29 | A kind of air insulation vacuum load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209217562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378758A (en) * | 2018-10-29 | 2019-02-22 | 汇网电气有限公司 | A kind of air insulation vacuum load switch |
-
2018
- 2018-10-29 CN CN201821761949.3U patent/CN209217562U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378758A (en) * | 2018-10-29 | 2019-02-22 | 汇网电气有限公司 | A kind of air insulation vacuum load switch |
| CN109378758B (en) * | 2018-10-29 | 2024-01-30 | 汇网电气有限公司 | Air insulation vacuum load switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102280832B (en) | Box-type fixed high-voltage switch cabinet | |
| CN209217562U (en) | A kind of air insulation vacuum load switch | |
| CN209747997U (en) | low-voltage draw-out type switch cabinet | |
| CN210926697U (en) | Cubical switchboard convenient to change shell | |
| CN109378758A (en) | A kind of air insulation vacuum load switch | |
| CN110571664A (en) | Shockproof switch cabinet | |
| CN204517244U (en) | A kind of KNSJ650-12 armoured removable type alternating | |
| CN210517388U (en) | High-voltage board that space utilization is high | |
| CN211629555U (en) | Low-voltage draw-out type switch cabinet convenient to fix | |
| CN211017779U (en) | Protection type insulation low-voltage switch cabinet | |
| CN217789041U (en) | Distribution switch cabinet capable of quickly searching trip point | |
| CN220896067U (en) | Switch cabinet convenient for installing electrical equipment | |
| RU2794443C1 (en) | ARRANGEMENT OF THE CDD(E) CELL OF THE 35 kV CIRCUIT BREAKER | |
| CN214124463U (en) | Switch cabinet monitoring device based on ultrahigh frequency and pulse current | |
| CN204289241U (en) | A kind of outdoor high-voltage vacuum breaker | |
| CN220066558U (en) | Electric operation safety device of power plant | |
| CN216119830U (en) | Transformer installation device for electric power engineering convenient to dismouting | |
| RU2406198C1 (en) | Complete distribution unit cabinet with house transformer | |
| CN112636196B (en) | GCS low pressure pull-out type cubical switchboard cabinet body | |
| CN210577074U (en) | Cubical switchboard ground structure and cubical switchboard | |
| CN214255155U (en) | High tension switchgear is hit in lightning protection | |
| CN210608283U (en) | Armored movable alternating current metal-enclosed switchgear | |
| CN216121530U (en) | Box type fixed AC metal enclosed switchgear | |
| CN216121367U (en) | Draw-out type control electrical instrument switch cabinet | |
| CN214478468U (en) | Wire casing device convenient to unwrapping wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |