CN114221234A - Switch board convenient to remove - Google Patents
Switch board convenient to remove Download PDFInfo
- Publication number
- CN114221234A CN114221234A CN202111290136.7A CN202111290136A CN114221234A CN 114221234 A CN114221234 A CN 114221234A CN 202111290136 A CN202111290136 A CN 202111290136A CN 114221234 A CN114221234 A CN 114221234A
- Authority
- CN
- China
- Prior art keywords
- cabinet body
- threaded rod
- rotating
- power distribution
- rod
- 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.)
- Withdrawn
Links
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 6
- 230000001174 ascending effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/52—Mobile units, e.g. for work sites
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/54—Anti-seismic devices or installations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a power distribution cabinet convenient to move, which comprises: the cabinet body, the lower surface of the said cabinet body is fitted with the base fixedly; the moving assembly comprises two rotating rods and two pairs of rollers which are fixedly sleeved on the two rotating rods respectively; the lifting assembly comprises a first threaded rod, a sliding block sleeved on the first threaded rod in a threaded manner, and two groups of connecting parts for connecting the two rotating rods, wherein the two groups of connecting parts are fixedly arranged on the left side wall and the right side wall of the sliding block respectively; a driving member for providing a driving force for rotation of the first threaded rod. The staff can carry out the ascending removal of vertical direction through the cooperation control two pairs of gyro wheels between lifting unit and the driver part, and two pairs of gyro wheels are at the in-process of rebound, when two pairs of gyro wheels all do not contact with ground, alright this moment with avoid the gyro wheel because of receiving the vibrations that cabinet body during operation produced take base and cabinet body to take place to remove, improved the stability of cabinet body working process.
Description
Technical Field
The invention relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet convenient to move.
Background
The switch board is a power infrastructure commonly used, and its inside is equipped with a large amount of electric power parts, belongs to the very important equipment among the electric power field, and in some application scenario, need use temporarily and remove small-size switch board many times, and for convenient the removal, generally can be equipped with the base of a plurality of gyro wheels at the lower fixed surface installation of switch board.
After the power distribution cabinet moves to a specified position through the idler wheels below the base, the idler wheels can possibly drive the cabinet body to deviate from the position due to vibration generated by the cabinet body during working, and therefore the work of the power distribution cabinet is influenced.
Disclosure of Invention
The invention aims to solve the following defects in the prior art, and provides a power distribution cabinet convenient to move, wherein after the power distribution cabinet moves to a specified position through rollers below a base, the rollers can drive the cabinet to deviate in position due to vibration generated by the cabinet during working, so that the working of the power distribution cabinet is influenced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a switch board convenient to remove, includes:
the cabinet body, the lower surface of the said cabinet body is fitted with the base fixedly;
the moving assembly is used for moving the base and comprises two rotating rods and two pairs of rollers fixedly sleeved on the two rotating rods respectively;
the lifting assembly is used for controlling the two rotating rods to move in the vertical direction and comprises a first threaded rod, a sliding block sleeved on the first threaded rod in a threaded manner and two groups of connecting parts used for being connected with the two rotating rods, a mounting groove is formed in the lower surface of the base, the first threaded rod is vertically and rotatably mounted at the center of the bottom of the mounting groove, the two groups of connecting parts are fixedly mounted on the left side wall and the right side wall of the sliding block respectively, and the sliding block is limited to rotate through a limiting part;
a driving member for providing a driving force for rotation of the first threaded rod.
Preferably, the connecting part comprises a connecting rod fixedly mounted on the side wall of the sliding block and a bearing fixedly connected with one end of the connecting rod, the rotating rod is inserted in the bearing, and the surface of the rotating rod is fixedly connected with the inner ring wall of the bearing.
Preferably, the driving part comprises a worm wheel fixedly sleeved on the first threaded rod and a worm longitudinally and horizontally rotatably installed in the installation groove, the worm is meshed with the worm wheel, and one end of the worm penetrates through the base and is fixedly sleeved with a first adjusting wheel.
Preferably, the sealing layer is bonded to the lower surface of the base, and the sealing layer is made of rubber.
Preferably, the cabinet body all sets up the installing port that is linked together with inside all around the lateral wall, all rotate in the installing port and install the pivot, fixed the cup jointing has the cabinet door in the pivot, four the pivot is all through drive disk assembly control rotation.
Preferably, the transmission part comprises four gears respectively fixedly sleeved on four rotating shafts, a movable plate, four rack rods respectively fixedly mounted on the peripheral side wall of the movable plate and a rotating part used for controlling the movable plate to move in the vertical direction, a sliding opening communicated with the inside is vertically formed in the upper surface of the cabinet body, the movable plate is vertically and slidably mounted in the sliding opening, and the four rack rods are respectively meshed with the four gears.
Preferably, the rotating part comprises two supporting rods symmetrically and fixedly mounted on the upper surface of the cabinet body, a mounting plate fixedly mounted on the upper surfaces of the two supporting rods, and a second threaded rod vertically and rotatably mounted on the lower surface of the mounting plate, the top end of the second threaded rod penetrates out of the mounting plate and is fixedly provided with a second adjusting wheel, and the moving plate is sleeved on the second threaded rod in a threaded manner.
Preferably, the peripheral side walls of the installation plate are fixedly provided with baffles, and the inner walls of the baffles respectively abut against the peripheral side walls of the cabinet body.
Preferably, the limiting part comprises a limiting rod vertically and fixedly mounted on the bottom of the mounting groove, and the sliding block is sleeved on the limiting rod in a sliding manner.
Preferably, four side walls of the four sides of the cabinet door are in sliding sealing contact with the inner opening walls of the four mounting openings respectively.
Compared with the prior art, the invention has the beneficial effects that:
1. after the cabinet body is driven by the moving assembly to move to a designated position, the two pairs of rollers can be controlled to move in the vertical direction through the cooperation between the lifting assembly and the driving component, the base can gradually move downwards in the upward moving process of the two pairs of rollers until the two pairs of rollers move downwards until the lower surface of the base is abutted against the ground, and the two pairs of rollers are not in contact with the ground, so that the situation that the base and the cabinet body are driven to move by the vibration generated during the operation of the cabinet body can be avoided, and the stability of the operation process of the cabinet body is improved;
2. the traditional cabinet body is only provided with one cabinet door generally, and is inconvenient to overhaul elements inside the cabinet body when the cabinet door is opened, the cabinet body provided by the invention is provided with four cabinet doors, and the four cabinet doors can be rapidly controlled to be opened or closed together through the matching between the transmission part and the rotating part, so that a worker can conveniently overhaul any position around the elements in the cabinet body.
Drawings
Fig. 1 is a schematic front perspective view of a power distribution cabinet convenient to move according to the present invention;
fig. 2 is a schematic bottom perspective view of a power distribution cabinet convenient to move according to the present invention;
fig. 3 is a schematic structural view of a front-side three-dimensional partial section of a power distribution cabinet convenient to move according to the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 2;
fig. 5 is an enlarged schematic view of B in fig. 3.
In the figure: the cabinet comprises a cabinet body 1, a base 2, a rotating rod 3, rollers 4, a first threaded rod 5, a sliding block 6, a mounting groove 7, a connecting rod 8, a bearing 9, a worm wheel 10, a worm 11, a first adjusting wheel 12, a mounting opening 13, a rotating shaft 14, a cabinet door 15, a gear 16, a movable plate 17, a rack rod 18, a supporting rod 19, a placing plate 20, a second threaded rod 21, a second adjusting wheel 22, a baffle 23, a limiting rod 24 and a sliding opening 25.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a power distribution cabinet convenient to move includes:
the cabinet comprises a cabinet body 1, wherein a base 2 is fixedly arranged on the lower surface of the cabinet body 1;
the moving assembly is used for moving the base 2 and comprises two rotating rods 3 and two pairs of rollers 4 which are fixedly sleeved on the two rotating rods 3 respectively;
the lifting assembly is used for controlling the two rotating rods 3 to move in the vertical direction and comprises a first threaded rod 5, a sliding block 6 in threaded sleeve connection with the first threaded rod 5 and two groups of connecting parts for being connected with the two rotating rods 3, a mounting groove 7 is formed in the lower surface of the base 2, the first threaded rod 5 is vertically and rotatably mounted at the center of the bottom of the mounting groove 7, the two groups of connecting parts are respectively and fixedly mounted on the left side wall and the right side wall of the sliding block 6, and the sliding block 6 is limited to rotate through a limiting part;
and a driving member for providing a driving force for rotating the first threaded rod 5.
In the embodiment of the application of the technical scheme, after the cabinet body 1 is driven to move to a specified position by the moving component, the first threaded rod 5 can be controlled to rotate by the driving component, when the first threaded rod 5 rotates, the sliding block 6 which is sleeved on the first threaded rod 5 in a threaded manner drives the two groups of connecting parts fixedly connected with the left and right side walls of the first threaded rod to move in the vertical direction together under the action of the limiting part, because the two rotating rods 3 are respectively connected with the two groups of connecting parts, when the two groups of connecting parts move in the vertical direction, the two rotating rods 3 can drive the two pairs of rollers 4 to move in the vertical direction together, and in the process of moving upwards, the base 2 can gradually move downwards until the lower surface of the base 2 is abutted against the ground, and when the two pairs of rollers 4 are not in contact with the ground, alright this moment take base 2 and cabinet body 1 to take place to remove in order to avoid two pairs of gyro wheels 4 to receive the vibrations that cabinet body 1 during operation produced, improved the stability of the cabinet body 1 working process, two bull sticks 3 of again control take two pairs of gyro wheels 4 to move down when the cabinet body 1 is removed to needs, until the bottom surface of base 2 no longer contacts with ground, and two pairs of gyro wheels 4 can when contacting with ground, convenient and fast.
In the preferred technical scheme of this embodiment, the connecting part includes a connecting rod 8 fixedly mounted on the side wall of the slider 6 and a bearing 9 fixedly connected with one end of the connecting rod 8, and the rotating rod 3 is inserted in the bearing 9 and the surface of the rotating rod is fixedly connected with the inner annular wall of the bearing 9. The rotating rod 3 can rotate freely in the bearing 9 and cannot drive the connecting rod 8 to rotate together, and when the connecting rod 8 moves in the vertical direction, the bearing 9 at the end part of the connecting rod 8 can drive the rotating rod 3 to move in the vertical direction together.
In the preferred technical scheme of this embodiment, the driving part includes a worm wheel 10 fixedly sleeved on the first threaded rod 5 and a worm 11 longitudinally and horizontally rotatably installed in the installation groove 7, the worm 11 is engaged with the worm wheel 10, and one end of the worm 11 penetrates through the base 2 and is fixedly sleeved with a first adjusting wheel 12. When the worm 11 rotates by rotating the first adjusting wheel 12, the worm wheel 10 meshed with the worm 11 rotates together, and the worm wheel 10 is fixedly sleeved on the first threaded rod 5, so that the worm wheel 10 drives the first threaded rod 5 to rotate together when rotating.
In the preferred technical scheme of this embodiment, the sealing layer is bonded to the lower surface of the base 2, and the sealing layer is made of rubber. Rubber has good elasticity and viscidity to when the lower surface of base 2 offseted with ground, the sealing layer can increase the frictional force between base 2 lower surface and the ground contact surface, can also prevent some subaerial worms or rainwater from getting into from the gap between base 2 and the ground.
According to the preferable technical scheme in the embodiment, the mounting opening 13 communicated with the inside is formed in the peripheral side wall of the cabinet body 1, the rotating shaft 14 is rotatably mounted in the mounting opening 13, the cabinet door 15 is fixedly sleeved on the rotating shaft 14, and the four rotating shafts 14 are controlled to rotate through the transmission part. The traditional cabinet body 1 generally has only one cabinet door 15, and is inconvenient to overhaul elements inside the cabinet door 15 when the cabinet door 15 is opened, while the cabinet body 1 provided by the invention has four cabinet doors 15, and the four cabinet doors 15 can be rapidly controlled to be opened or closed together through the matching between the transmission part and the rotating part, so that a worker can conveniently overhaul any position around the elements in the cabinet body 1.
According to the preferable technical scheme in the embodiment, the transmission part comprises four gears 16 fixedly sleeved on four rotating shafts 14, a moving plate 17, four rack rods 18 fixedly mounted on the peripheral side wall of the moving plate 17 and a rotating part used for controlling the moving plate 17 to move in the vertical direction, a sliding opening 25 communicated with the inside is vertically formed in the upper surface of the cabinet body 1, the moving plate 17 is vertically and slidably mounted in the sliding opening 25, and the four rack rods 18 are respectively meshed with the four gears 16. When the moving plate 17 is moved downward in the vertical direction in the slide port 25 by the rotating member, at this time, the four rack rods 18 fixedly arranged with the peripheral side walls of the moving plate 17 also move downwards together, and as the four gears 16 are respectively meshed and connected with the four rack rods 18, when the four rack bars 18 are moved downward, the four gears 16 rotate clockwise, and the four gears 16 are respectively fixedly sleeved on the four rotating shafts 14, therefore, the four rotating shafts 14 can drive the four cabinet doors 15 fixedly sleeved on the rotating shafts 14 to rotate clockwise at the same time, the four cabinet doors 15 can be opened together, when the moving plate 17 with the four rack rods 18 moves upwards, the four rotating shafts 14 drive the four cabinet doors 15 to rotate anticlockwise together, the four cabinet doors 15 are closed together, and therefore workers can conveniently overhaul any positions around elements in the cabinet body 1.
In the preferred technical scheme of this embodiment, the rotating part includes two supporting rods 19 symmetrically and fixedly installed on the upper surface of the cabinet body 1, a setting plate 20 fixedly installed on the upper surface of the two supporting rods 19, and a second threaded rod 21 vertically and rotatably installed on the lower surface of the setting plate 20, the top end of the second threaded rod 21 penetrates through the setting plate 20 and is fixedly installed with a second adjusting wheel 22, and the moving plate 17 is in threaded sleeve connection with the second threaded rod 21. When the second adjusting wheel 22 is rotated, the second threaded rod 21 is rotated, and the moving plate 17 screwed on the second threaded rod 21 is vertically slidably mounted in the sliding opening 25, so that when the second threaded rod 21 is rotated, the moving plate 17 screwed on the second threaded rod 21 is vertically moved in the sliding opening 25 and cannot rotate along with the rotation of the second threaded rod 21.
According to the preferred technical scheme in the embodiment, the baffles 23 are fixedly arranged on the peripheral side walls of the mounting plate 20, and the inner walls of the four baffles 23 are respectively abutted against the peripheral side walls of the cabinet body 1. The four baffles 23 prevent sundries such as leaves and rainwater from entering the cabinet body 1 from the sliding opening 25, so that short circuit of elements inside the cabinet body 1 is caused, and the stability of the elements inside the cabinet body 1 during working is ensured.
In the preferred technical scheme of this embodiment, the limiting component includes a limiting rod 24 vertically and fixedly mounted on the bottom of the mounting groove 7, and the sliding block 6 is slidably sleeved on the limiting rod 24. The sliding block 6 can only move on the limiting rod 24 in the vertical direction, so that when the first threaded rod 5 rotates, the sliding block 6 which is sleeved on the first threaded rod 5 in a threaded manner can only move in the vertical direction, and cannot rotate along with the first threaded rod 5.
In the preferred technical scheme in this embodiment, the peripheral side walls of the four cabinet doors 15 are in sliding sealing contact with the inner opening walls of the four mounting openings 13 respectively. When the four cabinet doors 15 are all in a closed state, the peripheral side walls of the four cabinet doors 15 are respectively in sliding sealing contact with the inner opening walls of the four mounting openings 13, so that external leaves, rainwater and other sundries can be prevented from entering the cabinet body 1 from a gap between the cabinet doors 15 and the mounting openings 13, and the stability of internal elements of the cabinet body 1 during working is ensured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a switch board convenient to remove which characterized in that includes:
the refrigerator comprises a cabinet body (1), wherein a base (2) is fixedly arranged on the lower surface of the cabinet body (1);
the moving assembly is used for moving the base (2), and comprises two rotating rods (3) and two pairs of rollers (4) which are fixedly sleeved on the two rotating rods (3) respectively;
the lifting assembly is used for controlling the two rotating rods (3) to move in the vertical direction and comprises a first threaded rod (5), a sliding block (6) in threaded sleeve connection with the first threaded rod (5) and two groups of connecting parts for being connected with the two rotating rods (3), a mounting groove (7) is formed in the lower surface of the base (2), the first threaded rod (5) is vertically and rotatably mounted at the center of the bottom of the mounting groove (7), the two groups of connecting parts are respectively and fixedly mounted on the left side wall and the right side wall of the sliding block (6), and the sliding block (6) is limited to rotate through a limiting part;
a drive member for providing a driving force for rotating the first threaded rod (5).
2. A distribution cabinet convenient to move according to claim 1, wherein the connecting component comprises a connecting rod (8) fixedly mounted on the side wall of the sliding block (6) and a bearing (9) fixedly connected with one end of the connecting rod (8), the rotating rod (3) is inserted in the bearing (9), and the surface of the rotating rod is fixedly connected with the inner annular wall of the bearing (9).
3. The movable power distribution cabinet according to claim 1, characterized in that the driving component comprises a worm wheel (10) fixedly sleeved on the first threaded rod (5) and a worm (11) longitudinally and horizontally rotatably installed in the installation groove (7), the worm (11) is engaged with the worm wheel (10), and one end of the worm penetrates through the base (2) and is fixedly sleeved with a first adjusting wheel (12).
4. The power distribution cabinet convenient to move according to claim 1, wherein a sealing layer is bonded to the lower surface of the base (2), and the sealing layer is made of rubber.
5. The power distribution cabinet convenient to move according to claim 1, wherein the peripheral side wall of the cabinet body (1) is provided with mounting openings (13) communicated with the inside, the mounting openings (13) are rotatably provided with rotating shafts (14), the rotating shafts (14) are fixedly sleeved with cabinet doors (15), and the four rotating shafts (14) are controlled to rotate by a transmission component.
6. The power distribution cabinet convenient to move according to claim 5, wherein the transmission component comprises four gears (16) fixedly sleeved on four rotating shafts (14) respectively, a moving plate (17), four rack rods (18) fixedly installed on the peripheral side wall of the moving plate (17) respectively, and a rotating component used for controlling the moving plate (17) to move in the vertical direction, a sliding opening (25) communicated with the inside is vertically formed in the upper surface of the cabinet body (1), the moving plate (17) is vertically and slidably installed in the sliding opening (25), and the four rack rods (18) are respectively meshed with the four gears (16).
7. The power distribution cabinet convenient to move according to claim 6, wherein the rotating parts comprise two symmetrical support rods (19) fixedly installed on the upper surface of the cabinet body (1), a placing plate (20) fixedly installed on the upper surfaces of the two support rods (19), and a second threaded rod (21) vertically rotatably installed on the lower surface of the placing plate (20), the top end of the second threaded rod (21) penetrates through the placing plate (20) and is fixedly provided with a second adjusting wheel (22), and the moving plate (17) is in threaded sleeve connection with the second threaded rod (21).
8. The power distribution cabinet convenient to move according to claim 7, wherein baffle plates (23) are fixedly mounted on peripheral side walls of the placement plate (20), and inner walls of the four baffle plates (23) are respectively abutted against the peripheral side walls of the cabinet body (1).
9. The power distribution cabinet convenient to move according to claim 1, wherein the limiting component comprises a limiting rod (24) vertically and fixedly mounted on the bottom of the mounting groove (7), and the sliding block (6) is slidably sleeved on the limiting rod (24).
10. A movable power distribution cabinet according to claim 5, characterized in that four peripheral side walls of the four cabinet doors (15) are in sliding sealing contact with the inner opening walls of the four mounting openings (13), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111290136.7A CN114221234A (en) | 2021-11-02 | 2021-11-02 | Switch board convenient to remove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111290136.7A CN114221234A (en) | 2021-11-02 | 2021-11-02 | Switch board convenient to remove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114221234A true CN114221234A (en) | 2022-03-22 |
Family
ID=80696589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111290136.7A Withdrawn CN114221234A (en) | 2021-11-02 | 2021-11-02 | Switch board convenient to remove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114221234A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119029700A (en) * | 2024-08-05 | 2024-11-26 | 扬州德云电气设备集团有限公司 | A regulating type environmental control electric control cabinet |
| CN120414308A (en) * | 2025-05-14 | 2025-08-01 | 常州品良电力科技有限公司 | A control cabinet for electromechanical engineering that is easy to install |
-
2021
- 2021-11-02 CN CN202111290136.7A patent/CN114221234A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119029700A (en) * | 2024-08-05 | 2024-11-26 | 扬州德云电气设备集团有限公司 | A regulating type environmental control electric control cabinet |
| CN120414308A (en) * | 2025-05-14 | 2025-08-01 | 常州品良电力科技有限公司 | A control cabinet for electromechanical engineering that is easy to install |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220322 |