CN217689219U - Power transmission and transformation equipment state detection device - Google Patents
Power transmission and transformation equipment state detection device Download PDFInfo
- Publication number
- CN217689219U CN217689219U CN202221130042.3U CN202221130042U CN217689219U CN 217689219 U CN217689219 U CN 217689219U CN 202221130042 U CN202221130042 U CN 202221130042U CN 217689219 U CN217689219 U CN 217689219U
- Authority
- CN
- China
- Prior art keywords
- detection device
- main part
- device main
- fixed
- gag lever
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 83
- 230000005540 biological transmission Effects 0.000 title claims abstract description 18
- 230000009466 transformation Effects 0.000 title claims abstract description 18
- 230000001771 impaired effect Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 230000004308 accommodation Effects 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000013016 damping Methods 0.000 description 25
- 238000000034 method Methods 0.000 description 3
- 238000005204 segregation Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Landscapes
- Burglar Alarm Systems (AREA)
Abstract
The utility model belongs to the technical field of electric power detection, a power transmission and transformation equipment state detection device is disclosed, including upper end open-ended detection device main part, be provided with the component in the detection device main part, all be provided with the guard plate that is used for reducing the impaired probability of component on four inner walls of detection device main part, all be provided with on the upper surface of component and the bottom surface and be used for carrying out absorbing damper to the component, the dovetail has been seted up to the upper surface of detection device main part, it is provided with the slide bar to slide in the dovetail, the last fixed surface of slide bar has the upper cover that is used for sealing the detection device main part, on cover and be provided with the fixed subassembly that is used for fixed upper cover and reduces the impaired probability of component. The utility model discloses have the effect that reduces the impaired probability of detection device main part internal element when receiving external force.
Description
Technical Field
The application relates to the technical field of electric power detection, more specifically relates to a power transmission and transformation equipment state detection device.
Background
High-voltage electrical equipment is important equipment in a power system, and the safety and stability of the power system are directly influenced by the safe operation of the high-voltage electrical equipment. The high-voltage electrical equipment breaks down, not only can cause the damage of equipment itself, still endangers the safety of other equipment and personnel simultaneously, causes many-sided economic loss, and power transmission and transformation equipment running state check out test set is mainly used for detecting power equipment.
The utility model discloses an electric power detection device in chinese utility model patent of publication No. CN207832833U, including electric power detection device main part and electric power detection device roof, the surface of electric power detection device main part is provided with electric power detection device main display screen through inlaying the fixing, the bottom both sides of electric power detection device roof are provided with connects the tongue, the electric power detection device main part connecting groove that electric power detection device roof was provided with through connecting tongue and electric power detection device main part top both sides passes through the draw-in groove card and is connected, the inside of electric power detection device main part is provided with the protection piece through bonding is fixed.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: the device only fixes and damps the elements in the detection device body through the protective blocks arranged on the inner wall of the detection device body, when the detection device body is acted by upward acting force, the elements easily move upwards under the action of inertia and impact the top plate of the electric power detection device, so that the elements are damaged.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the present application provides a power transmission and transformation equipment state detection device.
The application provides a power transmission and transformation equipment state detection device adopts following technical scheme:
the utility model provides a power transmission and transformation equipment state detection device, includes upper end open-ended detection device main part, be provided with the component in the detection device main part, all be provided with the guard plate that is used for reducing the impaired probability of component on four inner walls of detection device main part, all be provided with on the upper surface of component and the bottom surface and be used for carrying out absorbing damper to the component, the dovetail has been seted up to the upper surface of detection device main part, it is provided with the slide bar to slide in the dovetail, the last fixed surface of slide bar has the upper cover that is used for sealing the detection device main part, on cover and be provided with the fixed subassembly that is used for fixed upper cover and reduces the impaired probability of component.
Through the technical scheme, when the detection device main part receives upward acting force, the element moves upwards along with the detection device main part and continues to move upwards when the detection device main part stops moving due to inertia, at the moment, the damping assembly supports the element and absorbs the acting force from the element, so that the energy carried by the element is reduced, the upward moving distance of the element is further shortened, the probability that the element impacts the inner wall of the detection device main part is further reduced, and the probability that the element is damaged is further reduced.
Furthermore, the damping assembly comprises a damping plate sliding on the inner wall of the detection device body and a first spring with one end fixed on the side wall of the damping plate far away from the element, the other end of the first spring below the damping assembly is fixed with the inner bottom wall of the detection device body, the bottom surface of the damping plate above the damping assembly abuts against the upper surface of the element, and the upper surface of the damping plate below the damping assembly abuts against the bottom surface of the element.
Through the technical scheme, when the element moves upwards, the damping plate moves upwards along with the element and absorbs kinetic energy from the element through the first spring, so that the kinetic energy carried by the element is reduced. Furthermore, the damping plate is followed the gliding in-process of component, and the kinetic energy on the damping plate is consumed by frictional force gradually to further reduced the distance that the component removed, and then reduced the impaired probability of component.
Furthermore, the fixed assembly comprises a sliding plate, a fixed rod, a threaded rod and a clamping block, the sliding plate is arranged on the inner wall of the detection device main body in a sliding mode, the fixed rod is connected with the upper surface of the sliding plate in a rotating mode, the threaded rod is connected with the upper cover in a threaded mode, the clamping block is fixed to the side wall, close to the side wall of the fixed rod, of the threaded rod, the bottom surface of the sliding plate is tightly attached to the upper surface of the protection plate, the threaded rod penetrates through the upper cover and extends into the detection device main body, a clamping groove is formed in the upper end of the fixed rod, the clamping block is fixed to the clamping groove in a clamping mode, and the upper surface of a first spring located above the clamping block is tightly attached to the bottom surface of the sliding plate.
Through above-mentioned technical scheme, when the staff need fix the upper cover, the staff only need place the upper cover in the detection device main part to the upper surface threaded connection who makes threaded rod and upper cover, at this moment, the staff only needs to rotate the threaded rod, can make the threaded rod move to the direction that is close to the joint groove gradually, thereby makes the fixture block move gradually to the joint inslot. Further, the sliding plate moves down along with the threaded rod and abuts against the upper surface of the protection plate, and at the moment, the upper cover is kept stable under the matching of the threaded rod and the sliding plate.
Further, the fixture block is including fixing the first gag lever post that the threaded rod is close to on the dead lever lateral wall, the holding tank has been seted up to the bottom surface of first gag lever post, the fixture block still sets up the second gag lever post in the holding tank downwards including the slope, the slope setting of first gag lever post axis direction is kept away from to the second gag lever post orientation, distance between second gag lever post bottom surface central point and the first gag lever post axis is greater than the diameter of first gag lever post, set up the accommodation hole that matches each other with the second gag lever post on the inner wall in joint groove.
Through above-mentioned technical scheme, when the threaded rod moves to the direction that is close to the joint groove gradually, first gag lever post removes to the joint inslot gradually to make the second gag lever post move to the direction that is close to the accommodation hole, when the second gag lever post is just to the time with the accommodation hole, the second gag lever post removes to the accommodation hole, thereby makes threaded rod and dead lever interconnect, and then has improved the stability of device.
Furthermore, the upper surface of threaded rod slides and is provided with fixed rope, the other end of fixed rope run through threaded rod and first gag lever post and with second gag lever post reciprocal anchorage.
Through above-mentioned technical scheme, when the staff need make second gag lever post and accommodation hole alternate segregation, the staff only need upwards stimulate fixed rope, can make the other end synchronous motion of fixed rope to make the second gag lever post move and finally alternate segregation with the accommodation hole to the direction of keeping away from the accommodation hole.
Furthermore, a fixing ring for keeping the fixing rope stable is fixed at the upper end of the fixing rope.
Through the technical scheme, the difficulty of pulling the fixed rope by the worker is reduced, and the use experience of the worker is improved.
Furthermore, the bottom surface of the fixing ring is fixed with a second spring, and the other end of the second spring is fixed on the upper surface of the threaded rod.
Through above-mentioned technical scheme, the solid fixed ring probability of rocking everywhere when having reduced the staff and having rotated the threaded rod has improved solid fixed ring's stability.
Further, the upper surface of guard plate is provided with the sheet rubber that is used for reducing the impaired probability of guard plate.
Through above-mentioned technical scheme, rubber has good elasticity, and the sheet rubber that adopts rubber to make has good elasticity to reduced the pressure that the guard plate received, and then reduced the impaired probability of guard plate.
To sum up, the present application includes at least one of the following advantageous technical effects:
(1) According to the device, when the detection device body is acted by an upward acting force, the element moves upwards along with the detection device body and continues to move upwards due to inertia when the detection device body stops moving, at the moment, the damping assembly supports the element and absorbs the acting force from the element, so that the energy carried by the element is reduced, the upward moving distance of the element is further shortened, the probability that the element impacts the inner wall of the detection device body is further reduced, and the probability that the element is damaged is further reduced;
(2) In this application, when the element moves upwards, the damping plate follows the element to move upwards and absorbs the kinetic energy from the element through the first spring, thereby reducing the kinetic energy carried by the element itself. Furthermore, in the process that the damping plate slides along with the element, the kinetic energy on the damping plate is gradually consumed by the friction force, so that the moving distance of the element is further reduced, and the probability of damage to the element is further reduced;
(3) In this application, when the staff need fix the upper cover, the staff only need place the upper cover in the detection device main part to the upper surface threaded connection who makes threaded rod and upper cover, at this moment, the staff only needs to rotate the threaded rod, can make the threaded rod move to the direction that is close to the joint groove gradually, thereby makes the fixture block remove gradually to the joint inslot. Further, the sliding plate moves down along with the threaded rod and abuts against the upper surface of the protection plate, and at the moment, the upper cover is kept stable under the matching of the threaded rod and the sliding plate.
Drawings
FIG. 1 is a schematic overall structure of the present application;
FIG. 2 is a schematic cross-sectional view of the shock absorbing assembly of the present application;
FIG. 3 is a schematic view of the present application highlighting a second spring;
fig. 4 is a schematic cross-sectional view illustrating a cartridge for highlighting the application.
The reference numbers in the figures illustrate:
1. a detection device main body; 11. an element; 2. a protection plate; 3. a shock absorbing assembly; 31. a damper plate; 32. a first spring; 4. a dovetail groove; 41. a slide bar; 5. an upper cover; 6. a fixing assembly; 61. a sliding plate; 62. a fixing rod; 63. a threaded rod; 64. a clamping block; 641. a first limit rod; 642. a second limiting rod; 65. a clamping groove; 66. accommodating grooves; 7. an accommodation hole; 71. fixing a rope; 8. a fixing ring; 9. a second spring; 91. a rubber sheet.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by those of ordinary skill in the art without any inventive work based on the embodiments in the present application belong to the protection scope of the present application.
Example 1:
the present application is described in further detail below with reference to the accompanying drawings.
The embodiment of the application discloses a power transmission and transformation equipment state detection device, please refer to fig. 1-4, which includes a detection device main body 1, an element 11, a protection plate 2, a damping assembly 3, a sliding rod 41, an upper cover 5, a fixing assembly 6, a fixing rope 71, a fixing ring 8 and a second spring 9. The detection device main body 1 is a cuboid structure with an opening at the upper end and a hollow interior, and a dovetail groove 4 is formed on the upper surface of the detection device main body 1. Be provided with component 11 in the 11 detection device main part of component 1, guard plate 2 is the rectangle platelike structure, and guard plate 2 is equipped with four and sets up respectively on four inner walls of detection device main part 1, and guard plate 2 has good elasticity for reduce the impaired probability of component 11.
The damping assembly 3 is provided with two damping plates 31 and two first springs 32, and the two damping plates are respectively arranged on the upper surface and the bottom surface of the element 11 and used for damping the element 11. The damper plate 31 is a rectangular plate-shaped structure, the damper plate 31 slides on the inner wall of the detection device body 1, the bottom surface of the upper damper plate 31 abuts against the upper surface of the element 11, and the upper surface of the lower damper plate 31 abuts against the bottom surface of the element 11. One end of the first spring 32 is fixed to a side wall of the damper plate 31 remote from the element 11, and the other end of the first spring 32 located below is fixed to an inner bottom wall of the detection apparatus body 1.
When the element 11 moves upwards, the damping plate 31 follows the element 11 moving upwards and absorbs the kinetic energy from the element 11 by means of the first spring 32, thus reducing the kinetic energy carried by the element 11 itself. Further, in the process that the damping plate 31 slides along the element 11, the kinetic energy on the damping plate 31 is gradually consumed by the friction force, so that the moving distance of the element 11 is further reduced, and the probability of damage to the element 11 is further reduced.
The sliding rods 41 are rod-shaped structures with dovetail-shaped cross sections, the sliding rods 41 are arranged in the dovetail grooves 4 in a sliding mode, and two sliding rods 41 are arranged and are arranged symmetrically. The upper cover 5 is a rectangular plate-shaped structure, and the upper cover 5 is fixed on the upper surface of the sliding rod 41 and used for closing the detection device main body 1.
The fixing assembly 6 is disposed on the upper cover 5 for fixing the upper cover 5 and reducing the probability of damage to the element 11, and the fixing assembly 6 includes a sliding plate 61, a fixing rod 62, a threaded rod 63, and a latch 64. The sliding plate 61 is a rectangular plate-shaped structure, the sliding plate 61 is slidably disposed on the inner wall of the detection device main body 1, the bottom surface of the sliding plate 61 is in close contact with the upper surface of the protection plate 2, and the upper surface of the first spring 32 located above is in close contact with the bottom surface of the sliding plate 61. The fixing rod 62 is a rectangular rod-shaped structure, the bottom surface of the fixing rod 62 is rotatably connected with the upper surface of the sliding plate 61, and the upper end of the fixing rod 62 is provided with a clamping groove 65. The threaded rod 63 is in threaded connection with the upper surface of the upper cover 5, the axis of the threaded rod is vertical, and the threaded rod 63 penetrates through the upper cover 5 and extends into the detection device body 1.
The engaging block 64 includes a first limiting rod 641 and a second limiting rod 642. The first limiting rod 641 is a round rod structure, an axis of the first limiting rod 641 coincides with an axis of the threaded rod 63, the first limiting rod 641 is fixed on a sidewall of the threaded rod 63 close to the fixing rod 62, and the bottom surface of the first limiting rod 641 is provided with an accommodating groove 66. The second limiting rod 642 is a rod-shaped structure with a parallelogram cross section, the second limiting rod 642 is obliquely and downwardly arranged in the accommodating groove 66, the second limiting rod 642 is obliquely arranged towards the direction away from the axis of the first limiting rod 641, the distance between the center point of the bottom surface of the second limiting rod 642 and the axis of the first limiting rod 641 is greater than the diameter of the first limiting rod 641, and the inner wall of the clamping groove 65 is provided with an accommodating hole 7 matched with the second limiting rod 642.
When the staff need fix upper cover 5, the staff only need place upper cover 5 in detection device main part 1 to the upper surface threaded connection who makes threaded rod 63 and upper cover 5, at this moment, the staff only needs to rotate threaded rod 63, can make threaded rod 63 move to the direction that is close to joint groove 65 gradually, thereby makes fixture block 64 move gradually to in the joint groove 65. Further, the sliding plate 61 follows the threaded rod 63 to move downward and abuts against the upper surface of the shielding plate 2, and at this time, the upper cover 5 is kept stable by the engagement of the threaded rod 63 with the sliding plate 61.
One end of the fixing rope 71 is slidably disposed on the upper surface of the threaded rod 63, and the other end of the fixing rope 71 penetrates through the threaded rod 63 and the first limiting rod 641 and is fixed to the second limiting rod 642. When the worker needs to separate the second limiting rod 642 from the receiving hole 7, the worker only needs to pull the fixing rope 71 upward to move the other end of the fixing rope 71 synchronously, so that the second limiting rod 642 moves in a direction away from the receiving hole 7 and is finally separated from the receiving hole 7.
The fixing ring 8 is a plate-shaped structure with a circular cross section, and the fixing ring 8 is fixed at the upper end of the fixing rope 71 and used for keeping the fixing rope 71 stable. The fixing ring 8 reduces the difficulty of pulling the fixing rope 71 by the worker, and improves the use experience of the worker. One end of the second spring 9 is fixed to the bottom surface of the fixing ring 8, and the other end of the second spring 9 is fixed to the upper surface of the threaded rod 63.
In order to reduce the probability of damage to the apron 2, the upper surface of the apron 2 is provided with a rubber sheet 91. The rubber has good elasticity, and the rubber sheet 91 made of rubber has good elasticity, so that the pressure on the protection plate 2 is reduced, and the damage probability of the protection plate 2 is reduced.
The implementation principle of a power transmission and transformation equipment state detection device in the embodiment of the application is as follows: when the detection device body 1 is acted by an upward acting force, the element 11 moves upwards along with the detection device body 1 and continues to move upwards due to inertia when the detection device body 1 stops moving, at the moment, the damping assembly 3 supports the element 11 and absorbs the acting force from the element 11, so that the energy carried by the element 11 is reduced, the upward moving distance of the element 11 is further shortened, the probability that the element 11 impacts the inner wall of the detection device body 1 is further reduced, and the probability that the element 11 is damaged is further reduced.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a power transmission and transformation equipment state detection device which characterized in that: including upper end open-ended detection device main part (1), be provided with component (11) in detection device main part (1), all be provided with guard plate (2) that are used for reducing component (11) impaired probability on four inner walls of detection device main part (1), all be provided with on the upper surface of component (11) and the bottom surface and be used for carrying out absorbing damper assembly (3) to component (11), dovetail (4) have been seted up to the upper surface of detection device main part (1), it is provided with slide bar (41) to slide in dovetail (4), the last fixed surface of slide bar (41) is equipped with upper cover (5) that are used for sealing detection device main part (1), be provided with fixed subassembly (6) that are used for fixed upper cover (5) and reduce component (11) impaired probability on upper cover (5).
2. The power transmission and transformation equipment state detection device of claim 1, characterized in that: damper (3) are including sliding damper plate (31) and the first spring (32) that one end was fixed on damper plate (31) on detection device main part (1) inner wall and keeping away from on component (11) lateral wall, are located the below the other end of first spring (32) and the interior bottom wall reciprocal anchorage of detection device main part (1) are located the top damper plate (31) bottom surface supports the upper surface of tight component (11), are located the below damper plate (31) upper surface supports the bottom surface of tight component (11).
3. The electric transmission and transformation equipment state detection device of claim 2, wherein: the fixing assembly (6) comprises a sliding plate (61) arranged on the inner wall of the detection device body (1) in a sliding mode, a fixing rod (62) connected with the upper surface of the sliding plate (61) in a rotating mode, a threaded rod (63) connected with the upper cover (5) in a threaded mode, and a clamping block (64) fixed to the side wall, close to the fixing rod (62), of the threaded rod (63), the bottom surface of the sliding plate (61) is tightly attached to the upper surface of the protection plate (2), the threaded rod (63) penetrates through the upper cover (5) and extends into the detection device body (1), a clamping groove (65) is formed in the upper end of the fixing rod (62), the clamping block (64) is fixedly clamped with the clamping groove (65), and the upper surface of a first spring (32) located above is tightly attached to the bottom surface of the sliding plate (61).
4. The electric transmission and transformation equipment state detection device of claim 3, wherein: fixture block (64) is including fixing first gag lever post (641) on threaded rod (63) is close to dead lever (62) lateral wall, holding tank (66) have been seted up to the bottom surface of first gag lever post (641), fixture block (64) still includes slope second gag lever post (642) of setting up downwards in holding tank (66), second gag lever post (642) are kept away from first gag lever post (641) axis direction slope setting towards, the distance between second gag lever post (642) bottom surface central point and first gag lever post (641) axis is greater than the diameter of first gag lever post (641), set up accommodation hole (7) that matches each other with second gag lever post (642) on the inner wall of joint groove (65).
5. The electric transmission and transformation equipment state detection device of claim 4, wherein: the upper surface of threaded rod (63) slides and is provided with fixed rope (71), the other end of fixed rope (71) run through threaded rod (63) and first gag lever post (641) and with second gag lever post (642) reciprocal anchorage.
6. The power transmission and transformation equipment state detection device of claim 5, wherein: and a fixing ring (8) for keeping the fixing rope (71) stable is fixed at the upper end of the fixing rope (71).
7. The electric transmission and transformation equipment state detection device of claim 6, wherein: the bottom surface of solid fixed ring (8) is fixed with second spring (9), the upper surface at threaded rod (63) is fixed to the other end of second spring (9).
8. The electric transmission and transformation equipment state detection device of claim 7, wherein: the upper surface of the protection plate (2) is provided with a rubber sheet (91) used for reducing the damage probability of the protection plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221130042.3U CN217689219U (en) | 2022-05-10 | 2022-05-10 | Power transmission and transformation equipment state detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221130042.3U CN217689219U (en) | 2022-05-10 | 2022-05-10 | Power transmission and transformation equipment state detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217689219U true CN217689219U (en) | 2022-10-28 |
Family
ID=83738299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221130042.3U Active CN217689219U (en) | 2022-05-10 | 2022-05-10 | Power transmission and transformation equipment state detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217689219U (en) |
-
2022
- 2022-05-10 CN CN202221130042.3U patent/CN217689219U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113310798B (en) | Tensile detection device for ship mooring rope | |
| CN217689219U (en) | Power transmission and transformation equipment state detection device | |
| CN209086090U (en) | A kind of drop hammer impact testing machine | |
| CN202381965U (en) | Automatic positioning and weight loss anti-falling device | |
| CN112217142A (en) | High altitude cable foreign matter cleaning device that unmanned aerial vehicle carried on | |
| CN114204443B (en) | Electric power looped netowrk cabinet convenient to dismantle installation | |
| CN213456024U (en) | Online building gas tightness detection device | |
| CN212425101U (en) | Multifunctional hoisting device for curtain wall decoration | |
| CN210575397U (en) | Remote transmission mutual inductor linking device | |
| CN213813911U (en) | Single-phase instantaneous artificial grounding short circuit test device for power transmission line | |
| CN115890117A (en) | Welding fixture and device for machining lead-acid battery | |
| CN113864580A (en) | Mounting device for wall-mounted air feeder and using method thereof | |
| CN113029487A (en) | Model testing device for building safety | |
| CN216313601U (en) | Outdoor equipment protective structure with safe loss prevention function | |
| CN112407261A (en) | Environment detection unmanned aerial vehicle with structure of preventing falling | |
| CN214041324U (en) | Coal mine gas standard exceeding detection alarm device convenient to install | |
| CN209210232U (en) | A kind of spring lifting equipment range limiter | |
| CN215371685U (en) | Equipment fixing frame with quick connecting mechanism for electric power detection | |
| CN217787282U (en) | Test transformer for electrical detection | |
| CN219770196U (en) | Buffering device for unmanned aerial vehicle landing | |
| CN219643553U (en) | Communication pipeline protector | |
| CN216595007U (en) | Hydrogen detector calibration equipment | |
| CN221057974U (en) | Weak current cable fixing device | |
| CN219107879U (en) | An Internet of Things big data analysis terminal | |
| CN220353528U (en) | Upright rod for communication monitoring station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |