CN220270667U - Ring main unit barometer convenient to quick detach - Google Patents
Ring main unit barometer convenient to quick detach Download PDFInfo
- Publication number
- CN220270667U CN220270667U CN202321377317.8U CN202321377317U CN220270667U CN 220270667 U CN220270667 U CN 220270667U CN 202321377317 U CN202321377317 U CN 202321377317U CN 220270667 U CN220270667 U CN 220270667U
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- fixedly connected
- barometer
- seat
- wall
- quick detach
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 description 11
- 230000000712 assembly Effects 0.000 description 9
- 238000000429 assembly Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The utility model provides a ring main unit barometer convenient to disassemble, belongs to the technical field of ring main units, and solves the problem that the existing ring main unit barometer is inconvenient to disassemble. This looped netowrk cabinet barometer convenient to quick detach, including the barometer body, the downside fixedly connected with seat of barometer body, cup jointed quick detach on the seat outer wall and connect, the downside fixedly connected with stay tube of quick detach joint, the upside fixedly connected with mounting panel of seat inner wall, the equal fixedly connected with articulated seat of left and right sides of seat inner wall, first sliding hole has all been seted up to the left and right sides of seat inner wall, rotate on the articulated seat and be connected with the pivot, the equal fixedly connected with T type backup pad of left and right sides of mounting panel, fixedly connected with first spring in the T type backup pad, the other end fixedly connected with regulating plate of first spring, regulating plate and pivot fixedly connected with, the regulating plate passes through adjusting component fixedly connected with cutting, cutting and first sliding hole sliding connection. The utility model can realize the rapid disassembly of the barometer body.
Description
Technical Field
The utility model belongs to the technical field of ring main units, and relates to a ring main unit barometer, in particular to a ring main unit barometer convenient to disassemble quickly.
Background
The ring main unit is a group of electric equipment (high-voltage switch equipment) which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled spacing ring main power supply unit, and the core part of the ring main unit adopts a load switch and a fuse, and has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like.
The ring main unit barometer is an important protection and control element in the power system, and is suitable for measuring the monitoring of gas pressure in electrical equipment such as high-voltage, medium-voltage SF6 load switches, voltage cabinets and the like in which various SF6 gases in a power transmission and transformation grid system are used as insulating media; the existing ring main unit barometer mounting structure is characterized in that the barometer and the supporting tube are connected through a threaded structure, or the barometer and the supporting tube are connected and fixed through bolts, because components in the ring main unit are more, the operable space is smaller, and tools such as a wrench are inconvenient to screw the bolts to detach the barometer, so that the operation is troublesome.
The utility model relates to a ring main unit barometer convenient to detach quickly.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides a ring main unit barometer convenient to disassemble, which aims to solve the technical problems that: realize the quick dismantlement of barometer.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides a looped netowrk cabinet barometer convenient to quick detach, includes the barometer body, the downside fixedly connected with seat of barometer body, cup jointed quick detach connects on the seat outer wall, the downside fixedly connected with stay tube of quick detach connects, the upside fixedly connected with mounting panel of seat inner wall, the equal fixedly connected with articulated seat in the left and right sides of seat inner wall, first sliding hole has all been seted up in the left and right sides of seat inner wall, it is connected with the pivot to rotate on the articulated seat, the equal fixedly connected with T type backup pad in the left and right sides of mounting panel, fixedly connected with first spring in the T type backup pad, the other end fixedly connected with regulating plate of first spring, regulating plate and pivot fixedly connected with, the regulating plate is through adjusting part fixedly connected with cutting, cutting and first sliding hole sliding connection, quick detach connects through pressing the subassembly sliding connection to keep off the strip, the second sliding hole has all been seted up in the left and right sides of quick detach connects, the second sliding hole communicates with first sliding hole, the corresponding sliding hole has been seted up with the cutting in the left and right sides of second sliding hole.
The working principle of the utility model is as follows: one end of a supporting tube is fixed with a connector in the ring main unit in a threaded manner, a cylinder seat on a barometer body is placed in a quick-release connector at the other end of the supporting tube, two cutting bars are extruded through an inclined plane groove to enable the cutting bars to slide towards the inside of the cylinder seat, after the cylinder seat is completely inserted into the quick-release connector, an adjusting plate rotates on the hinging seat under the elastic force of a first spring, and when the adjusting plate rotates, an adjusting assembly slides on the adjusting plate, so that the cutting bars are pushed to be inserted into a second sliding hole, and the cylinder seat is fixed on the quick-release connector; when the barometer body needs to be disassembled, the two pressing assemblies are pressed simultaneously, so that the two resisting strips move inwards, the inserting strips are extruded, the adjusting plate is inclined, the adjusting assemblies slide on the adjusting plate, the inserting strips are driven to move inwards, the inserting strips are separated from the second sliding holes, then the cylinder seat is pulled outwards to be separated from the quick-release connector, the disassembly can be completed, and the resisting strips return to the initial position under the action of the pressing assemblies after the disassembly; through the principle, the quick disassembly and the installation of the barometer body are realized, the operation is simple, and the assembly and disassembly work of the barometer body is not tedious and time-consuming any more.
The adjusting component comprises small rollers, a sliding cavity is formed in the adjusting plate, two small rollers are connected in the sliding cavity in a sliding mode, supporting shafts are connected to the small rollers in a rotating mode, and the supporting shafts are fixedly connected with cutting bars.
By adopting the structure, when the barometer body is installed, two cutting bars are extruded through the inclined plane groove to enable the cutting bars to shrink inwards, after the cylinder seat is completely inserted into the quick-release connector, the adjusting plate is pushed to incline under the elastic action of the first spring, so that the small roller slides in the sliding cavity, the cutting bars are driven to move outwards, and then the cutting bars are inserted into the second sliding hole, and the cylinder seat and the quick-release connector are fixed together; when the barometer body is disassembled, the pressing component is pressed to enable the resisting strip to push the cutting, the adjusting plate is inclined under the action of the pushing force, and the small roller slides in the sliding cavity, so that the cutting moves inwards to be separated from the second sliding hole, and then the cylinder seat is pulled outwards, so that the disassembly can be completed.
The pressing assembly comprises a pressing plate, the pressing plate is fixedly connected with the resisting strip, two cavities are formed in the left side and the right side of the quick release connector, a column casing is fixedly connected in the cavity, a second spring is fixedly connected in the column casing, a push rod is fixedly connected with the other end of the second spring, the push rod is in sliding connection with the column casing, and the other end of the push rod is fixedly connected with the pressing plate.
By adopting the structure, when the barrel seat is disassembled, the two pressing plates are pressed simultaneously, the blocking strips are extruded to shrink inwards, the blocking strips are separated from the second sliding holes, the barrel seat is pulled out from the quick-release joint, the disassembly can be completed, and after the disassembly is completed, the push rod pushes the pressing plates to return to the initial position under the action of the elasticity of the second spring, and then the blocking strips are driven to return to the inside of the second sliding holes.
The bottom side of quick detach connects the inner wall fixedly connected with two picture peg, two slots have been seted up to the bottom side of cartridge holder, slot and picture peg grafting.
By adopting the structure, when the cylinder seat is inserted into the quick-release connector, the slot is spliced with the plugboard to play a role in positioning, so that the cutting is accurately spliced in the second sliding hole.
The external thread is arranged at the bottom end of the outer wall of the support tube, a nut cap is connected onto the support tube in a sliding mode, and a baffle ring is fixedly connected to the bottom end of the outer wall of the support tube.
By adopting the structure, the supporting tube is fixed on the connecting head inside the ring main unit through the external thread and the nut cap, and the air pressure gauge body is supported.
The circumference of barometer body has seted up the pipe interface.
With the structure, the pipe connector is used for installing the air pressure pipe, and the valve body is communicated with the air pressure meter body through the air pressure pipe.
Compared with the prior art, the ring main unit barometer convenient to quick detach has following advantage:
1. one end of a supporting tube is fixed with a connector in the ring main unit in a threaded manner, a cylinder seat on a barometer body is placed in a quick-release connector at the other end of the supporting tube, two cutting bars are extruded through an inclined plane groove to enable the cutting bars to slide towards the inside of the cylinder seat, after the cylinder seat is completely inserted into the quick-release connector, an adjusting plate rotates on the hinging seat under the elastic force of a first spring, and when the adjusting plate rotates, an adjusting assembly slides on the adjusting plate, so that the cutting bars are pushed to be inserted into a second sliding hole, and the cylinder seat is fixed on the quick-release connector; when the barometer body needs to be disassembled, the two pressing assemblies are pressed simultaneously, so that the two resisting strips move inwards, the inserting strips are extruded, the adjusting plate is inclined, the adjusting assemblies slide on the adjusting plate, the inserting strips are driven to move inwards, the inserting strips are separated from the second sliding holes, then the cylinder seat is pulled outwards to be separated from the quick-release connector, the disassembly can be completed, and the resisting strips return to the initial position under the action of the pressing assemblies after the disassembly; through the principle, the quick disassembly and the installation of the barometer body are realized, the operation is simple, and the assembly and disassembly work of the barometer body is not tedious and time-consuming any more.
2. When the barometer body is installed, two cutting bars are extruded through the inclined surface groove to enable the cutting bars to shrink inwards, after the cylinder seat is completely inserted into the quick-release connector, the adjusting plate is pushed to incline under the elastic force of the first spring, so that the small roller slides in the sliding cavity, the cutting bars are driven to move outwards, and then the cutting bars are inserted into the second sliding hole, and the cylinder seat and the quick-release connector are fixed together; when the barometer body is disassembled, the pressing component is pressed to enable the resisting strip to push the cutting, the adjusting plate is inclined under the action of the pushing force, and the small roller slides in the sliding cavity, so that the cutting moves inwards to be separated from the second sliding hole, and then the cylinder seat is pulled outwards, so that the disassembly can be completed.
Drawings
Fig. 1 is a perspective view of the present utility model.
Fig. 2 is a perspective view of another perspective view of the present utility model.
Fig. 3 is a front cross-sectional view of the present utility model.
Fig. 4 is a schematic structural view of the quick release mechanism in the present utility model.
Fig. 5 is a top cross-sectional view of an adjustment plate in accordance with the present utility model.
Fig. 6 is an enlarged view of the structure at a in fig. 4.
Fig. 7 is a cross-sectional view of the nut cap of the present utility model.
In the figure, 1, a barometer body; 2. a cylinder seat; 3. quick-release connectors; 31. inserting plate; 32. a cavity; 4. a mounting plate; 5. a T-shaped support plate; 6. a first spring; 7. an adjusting plate; 71. a sliding cavity; 72. a small roller; 73. a support shaft; 8. a hinge base; 81. a rotating shaft; 9. cutting; 91. a first sliding hole; 10. a blocking strip; 101. a second sliding hole; 11. pressing the plate; 12. a column casing; 121. a second spring; 122. a push rod; 13. a tube interface; 14. a support tube; 141. an external thread; 15. a nut cap; 151. a baffle ring; 16. and an inclined plane groove.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1-7, the ring main unit barometer convenient for quick disassembly comprises a barometer body 1, a cylinder seat 2 is fixedly connected with the bottom side of the barometer body 1, a quick-disassembly joint 3 is sleeved on the outer wall of the cylinder seat 2, a supporting tube 14 is fixedly connected with the bottom side of the quick-disassembly joint 3, a mounting plate 4 is fixedly connected with the top side of the inner wall of the cylinder seat 2, a hinge seat 8 is fixedly connected with the left side and the right side of the inner wall of the cylinder seat 2, a first sliding hole 91 is respectively arranged on the left side and the right side of the inner wall of the cylinder seat 2, a rotating shaft 81 is rotatably connected on the hinge seat 8, a T-shaped supporting plate 5 is respectively fixedly connected with the left side and the right side of the mounting plate 4, a first spring 6 is fixedly connected with an adjusting plate 7, the adjusting plate 7 is fixedly connected with the rotating shaft 81, an inserting strip 9 is fixedly connected with the adjusting plate 7 through an adjusting component, the inserting strip 9 is slidably connected with the first sliding hole 91, the quick-release connector 3 is slidably connected with a resisting strip 10 through a pressing component, the left side and the right side of the quick-release connector 3 are provided with second sliding holes 101, the second sliding holes 101 are communicated with the first sliding holes 91, the second sliding holes 101 are slidably connected with the resisting strip 10, the left side and the right side of the inner wall of the quick-release connector 3 are provided with inclined grooves 16 corresponding to the cutting strips 9, in the embodiment, one end of a supporting tube 14 is screwed with a connector in a ring main unit, a cylinder seat 2 on a barometer body 1 is placed in the quick-release connector 3 at the other end of the supporting tube 14, the two cutting strips 9 are extruded through the inclined grooves 16 to slide towards the inside of the cylinder seat 2, after the cylinder seat 2 is completely inserted into the quick-release connector 3, under the elastic force of a first spring 6, an adjusting plate 7 rotates on the hinge seat 8, when the adjusting plate 7 rotates, the adjusting component slides on the adjusting plate 7, thereby pushing the cutting 9 to be inserted into the second sliding hole 101, and further fixing the cartridge holder 2 on the quick release connector 3; when the barometer body 1 needs to be disassembled, two pressing assemblies are pressed simultaneously, so that two resisting strips 10 move inwards to squeeze the inserting strips 9, the adjusting plate 7 is inclined, the adjusting assemblies slide on the adjusting plate 7, the inserting strips 9 are driven to move inwards to separate the inserting strips 9 from the second sliding holes 101, then the cylinder seat 2 is pulled outwards to separate from the quick-release connector 3, the disassembly can be completed, and the resisting strips 10 return to the initial position under the action of the pressing assemblies after the disassembly; through the principle, the quick disassembly and the installation of the barometer body are realized, the operation is simple, and the assembly and disassembly work of the barometer body is not tedious and time-consuming any more.
The adjusting component comprises small rollers 72, a sliding cavity 71 is formed in the adjusting plate 7, two small rollers 72 are connected in the sliding cavity 71 in a sliding mode, supporting shafts 73 are connected to the two small rollers 72 in a rotating mode, the two supporting shafts 73 are fixedly connected with the cutting 9, in the embodiment, when the barometer body 1 is installed, the two cutting 9 are extruded through the inclined surface groove 16 to enable the cutting 9 to shrink inwards, after the cylinder seat 2 is completely inserted into the quick-release connector 3, the adjusting plate 7 is pushed to incline under the elastic force of the first spring 6, the small rollers 72 slide in the sliding cavity 71, the cutting 9 is driven to move outwards, and then the cutting 9 is inserted into the second sliding hole 101, and the cylinder seat 2 and the quick-release connector 3 are fixed together; when the barometer body 1 is dismounted, the pressing component is pressed to enable the resisting strip 10 to push the cutting 9, the adjusting plate 7 is inclined under the action of the pushing force, the small roller 72 slides in the sliding cavity 71, so that the cutting 9 moves inwards to be separated from the second sliding hole 101, and then the cylinder seat 2 is pulled outwards, so that the dismounting can be completed.
The pressing component comprises a pressing plate 11, the pressing plate 11 is fixedly connected with a blocking strip 10, two cavities 32 are formed in the left side and the right side of the quick-release connector 3, a column casing 12 is fixedly connected in the cavities 32, a second spring 121 is fixedly connected in the column casing 12, a push rod 122 is fixedly connected to the other end of the second spring 121, the push rod 122 is slidably connected with the column casing 12, the other end of the push rod 122 is fixedly connected with the pressing plate 11, in the embodiment, when the quick-release connector is detached, the two pressing plates 11 are pressed simultaneously, the blocking strip 10 is enabled to squeeze the blocking strip 9 to shrink inwards, the blocking strip 9 is separated from the second sliding hole 101, the barrel seat 2 is pulled out from the quick-release connector 3, detachment can be completed, and after the detachment is completed, the push rod 122 pushes the pressing plate 11 to return to the initial position under the elastic force of the second spring 121, and then drives the blocking strip 10 to return to the inside of the second sliding hole 101.
The bottom side fixedly connected with two picture peg 31 of quick detach connects 3 inner wall, and two slots have been seted up to the bottom side of cartridge holder 2, and the slot is pegged graft with picture peg 31, in this embodiment, when cartridge holder 2 inserts the inside of quick detach connects 3, and the slot is pegged graft with picture peg 31 and is pegged graft, has played the effect of location, makes the cutting 9 peg graft in the inside of second sliding hole 101 accurately.
External screw thread 141 has been seted up to the bottom of stay tube 14 outer wall, and sliding connection has nut cap 15 on the stay tube 14, and the bottom fixedly connected with of stay tube 14 outer wall keeps off ring 151, and in this embodiment, stay tube 14 passes through external screw thread 141 and nut cap 15 to be fixed on the inside connector of looped netowrk cabinet, has played the effect of supporting barometer body 1.
The tube connector 13 is provided on the peripheral side of the barometer body 1, and in this embodiment, the tube connector 13 is used for installing a barometer tube, and the valve body is communicated with the barometer body 1 through the barometer tube.
The working principle of the utility model is as follows: one end of a supporting tube 14 is fixed on a connecting head in a ring main unit through an external thread 141 and a nut cap 15, a cylinder seat 2 on a barometer body 1 is placed in a quick-release joint 3 at the other end of the supporting tube 14, two cutting bars 9 are pressed simultaneously to enable the two cutting bars to slide towards the inside of the cylinder seat 2, after the cylinder seat 2 is completely inserted into the quick-release joint 3, an adjusting plate 7 is pushed to incline under the elastic force of a first spring 6, a small roller 72 slides in a sliding cavity 71, so that the cutting bars 9 are driven to move outwards, the small roller 72 is inserted into a second sliding hole 101, the cylinder seat 2 and the quick-release joint 3 are fixed together, and then a barometer tube on the valve body is connected with a tube joint 13, so that the installation of the barometer body 1 is completed; when the barometer body 1 needs to be disassembled, the two pressing plates 11 are pressed simultaneously, the blocking strip 10 is made to extrude the cutting 9 to shrink inwards, the cutting 9 is separated from the second sliding hole 101, the cylinder seat 2 is pulled out of the quick release connector 3, the disassembly can be completed, after the disassembly is completed, the push rod 122 pushes the pressing plates 11 to return to the initial position under the elastic force of the second spring 121, and then the blocking strip 10 is driven to return to the inside of the second sliding hole 101.
In conclusion, through the cooperation of structure such as seat, first spring, regulating plate, adjusting part, cutting, quick detach connect, support the blend stop, press the board and press the subassembly and use, realize the quick dismantlement of barometer body.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. The utility model provides a looped netowrk cabinet barometer convenient to quick detach, includes barometer body (1), a serial communication port, the downside fixedly connected with seat (2) of barometer body (1), cup joint quick detach joint (3) on seat (2) outer wall, the downside fixedly connected with stay tube (14) of quick detach joint (3), the upside fixedly connected with mounting panel (4) of seat (2) inner wall, the equal fixedly connected with articulated seat (8) in the left and right sides of seat (2) inner wall, first sliding hole (91) have all been seted up to the left and right sides of seat (2) inner wall, rotate on articulated seat (8) and be connected with pivot (81), the equal fixedly connected with T type backup pad (5) of the left and right sides of mounting panel (4), fixedly connected with first spring (6) on T type backup pad (5), the other end fixedly connected with regulating plate (7) of first spring (6), regulating plate (7) and pivot (81) fixedly connected with, regulating plate (7) are through regulating assembly (9) and are all seted up first sliding hole (91) on the left and right sides of seat (8), sliding assembly (9) are all connected with two sliding connection bar (101), the second sliding hole (101) is communicated with the first sliding hole (91), the second sliding hole (101) is in sliding connection with the abutting strip (10), and inclined surface grooves (16) corresponding to the cutting (9) are formed in the left side and the right side of the inner wall of the quick release connector (3).
2. The ring main unit barometer convenient to quick detach according to claim 1, wherein the adjusting component comprises small rollers (72), a sliding cavity (71) is formed in the adjusting plate (7), two small rollers (72) are connected in a sliding mode in the sliding cavity (71), supporting shafts (73) are connected to the two small rollers (72) in a rotating mode, and the two supporting shafts (73) are fixedly connected with the cutting (9).
3. The ring main unit barometer convenient to quick detach according to claim 1, characterized in that, press the subassembly and include pressing board (11), pressing board (11) and supporting blend stop (10) fixed connection, two cavities (32) have all been seted up to the left and right sides of quick detach joint (3), fixedly connected with barrel (12) in cavity (32), fixedly connected with second spring (121) in barrel (12), the other end fixedly connected with push rod (122) of second spring (121), push rod (122) and barrel (12) sliding connection, the other end and pressing board (11) fixed connection of push rod (122).
4. The ring main unit barometer convenient to quick detach according to claim 1, wherein two plugboards (31) are fixedly connected to the bottom side of the inner wall of the quick detach connector (3), two slots are formed in the bottom side of the cylinder seat (2), and the slots are spliced with the plugboards (31).
5. The ring main unit barometer convenient to quick detach according to claim 1, characterized in that an external thread (141) is provided at the bottom end of the outer wall of the supporting tube (14), a nut cap (15) is slidably connected to the supporting tube (14), and a baffle ring (151) is fixedly connected to the bottom end of the outer wall of the supporting tube (14).
6. The ring main unit barometer convenient to quickly detach according to claim 1, wherein a pipe interface (13) is formed on the periphery of the barometer body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321377317.8U CN220270667U (en) | 2023-05-31 | 2023-05-31 | Ring main unit barometer convenient to quick detach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321377317.8U CN220270667U (en) | 2023-05-31 | 2023-05-31 | Ring main unit barometer convenient to quick detach |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220270667U true CN220270667U (en) | 2023-12-29 |
Family
ID=89304359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321377317.8U Active CN220270667U (en) | 2023-05-31 | 2023-05-31 | Ring main unit barometer convenient to quick detach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220270667U (en) |
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2023
- 2023-05-31 CN CN202321377317.8U patent/CN220270667U/en active Active
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