CN214170416U - Inorganic double-curtain door roller convenient to install - Google Patents
Inorganic double-curtain door roller convenient to install Download PDFInfo
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- CN214170416U CN214170416U CN202023074965.5U CN202023074965U CN214170416U CN 214170416 U CN214170416 U CN 214170416U CN 202023074965 U CN202023074965 U CN 202023074965U CN 214170416 U CN214170416 U CN 214170416U
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- 238000005096 rolling process Methods 0.000 claims abstract description 49
- 238000009434 installation Methods 0.000 claims abstract description 46
- 230000006835 compression Effects 0.000 claims description 21
- 238000007906 compression Methods 0.000 claims description 21
- 238000004804 winding Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 11
- 230000009977 dual effect Effects 0.000 claims 5
- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 230000009471 action Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses an inorganic double curtain rolling door machine convenient to installation, concretely relates to rolling door machine technical field, including the mounting bracket, the both sides and the intermediate position department of mounting bracket bottom one end fixedly connected with guide rail respectively. The utility model discloses a confirm on the wall behind the installation position of rolling door machine, with the backplate in the mounting structure through the alignment of four group's mounting holes bolt fastening for the installation position on the wall, fix the backplate at wall installation position back, utilize two sets of draw runner of both sides installation foot end fixity with the mounting bracket, slide into the inside of spout and push away the end from the spout on backplate top and carry out rigidity, later stage need pull down when the maintenance is changed, traditional rolling door machine is with the mount pad snap-on the wall, can leave the hole after pulling down, original hole just can not continue to use when installing new rolling door machine need repeat and punch at the wall and be not convenient for the installation equally influence the wall pleasing to the eye, reached and be convenient for to the purpose of the change dismantlement in later stage.
Description
Technical Field
The utility model relates to a rolling door machine technical field specifically is an inorganic double curtain rolling door machine convenient to installation.
Background
The rolling door is a door which is suitable for some shop merchants, the main body is formed by connecting movable door sheets with different lengths and widths in series and moving up and down in a fixed slideway slide rail, the movable door sheets connected in series are driven by the rotation of a rotating shaft to move up and down to open and close the door, and the rolling door plays a role of separation like a wall.
In the process of implementing the present invention, the inventor finds that at least the following problems exist in the prior art and are not solved:
(1) the traditional inorganic double-curtain rolling door machine convenient to install has a complex internal structure and is inconvenient to use in the rolling process, and a limit measure is not provided;
(2) the traditional inorganic double-curtain door roller convenient to install is generally directly fixed on a wall by bolts during installation, so that the later replacement, disassembly and installation are inconvenient;
(3) the traditional inorganic double-curtain rolling door machine convenient to install is inconvenient for disassembling, maintaining and the like the roller shutter.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an inorganic double curtain rolling door machine convenient to installation to propose the complicated inconvenient problem of using and not having a spacing measure of rolling process inner structure in solving above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an inorganic double-curtain door roller convenient to mount comprises a mounting frame, wherein guide rails are fixedly connected to two sides and a middle position of one end of the bottom end of the mounting frame respectively, mounting seats are fixedly connected to two sides inside the mounting frame respectively, sliding blocks are arranged inside the mounting seats respectively, mounting feet are fixedly connected to the top ends of one ends of two sides of the mounting frame respectively, mounting structures are arranged at one ends of the mounting feet respectively, a rotating shaft is arranged between the sliding blocks, a rolling roller is fixedly connected to the outside of the rotating shaft, curtain bodies are fixedly connected to the outside of the rolling roller respectively, dismounting structures are arranged inside the mounting seats respectively, and a rolling mechanism is arranged at the bottom inside the mounting frame;
winding mechanism includes the movable rod, movable rod swing joint is in the bottom of the inside both sides of mounting bracket, the outside both sides difference fixedly connected with first sprocket of movable rod, the outside both sides difference fixedly connected with second sprocket of pivot, the outside of first sprocket and second sprocket is provided with the chain respectively, the bottom fixedly connected with servo motor of mounting bracket one side one end, the inside difference fixedly connected with locked groove on slider top, the inside difference fixedly connected with second compression spring of locked groove, the top difference fixedly connected with locking piece of second compression spring, the inside difference fixedly connected with through-hole of mount pad top one side.
Preferably, the output shaft of the servo motor is fixedly connected with one side of the movable rod through a coupler, the first chain wheel and the second chain wheel are respectively meshed with the chain, the locking block is semi-cylindrical, and a sliding structure is formed between the locking block and the through hole.
Preferably, the mounting structure comprises mounting hole, backplate, spout and draw runner, the backplate sets up the one end at the installation foot respectively, four corners of backplate one end fixedly connected with mounting hole respectively, the inside of backplate one end both sides is provided with the spout respectively, the draw runner is fixed connection respectively in the both sides of installation foot one end.
Preferably, the slide bar is in the shape of a T, and the inner dimension of the sliding groove is larger than the outer dimension of the slide bar.
Preferably, the dismounting structure consists of an inner cavity, a reserved groove, a bearing and a first compression spring, wherein the inner cavity is fixedly connected in the mounting seat respectively, the first compression spring is fixedly connected to one side of the inner cavity respectively, the other side of the first compression spring is fixedly connected to one side of the sliding block respectively, the reserved groove is arranged in the sliding block respectively, and the bearing is arranged in the reserved groove respectively.
Preferably, the bearings are respectively and symmetrically distributed about a vertical center line of the mounting frame, and two sides of the rotating shaft respectively penetrate through the inside of the bearings.
Compared with the prior art, the beneficial effects of the utility model are that: the inorganic double-curtain rolling door machine convenient to install not only realizes simple and practical rolling and limiting, realizes the convenience for replacement and disassembly in the later period, but also realizes the convenience for disassembly and maintenance of the rolling curtain;
(1) when two groups of curtains are retracted or fall down, the output shaft of the servo motor drives the movable rod and the first chain wheels fixed at two sides to rotate through the shaft coupling by starting the switch of the servo motor in the rolling mechanism, the first chain wheels rotate and drive the second chain wheels at two sides of the meshed rotating shaft to rotate through the chain, the servo motor drives the rotating shaft to rotate forward to drive the curtains to roll, the servo motor drives the rotating shaft to rotate backward to drive the curtains to fall down, meanwhile, the two sides of the curtain body can be guided and limited by the guide rails in the falling or rolling process, so that the problems of incomplete stretching and the like in the process are avoided, in the operation process, the locking blocks at the top ends of the sliding blocks on the two sides of the rotating shaft can be clamped into the mounting seats fixed on the two sides in the mounting frame to limit the rotating shaft and the curtain body outside the roller in the operation process, the structure is simple, the use is reliable, and the purposes of simple and practical rolling and limiting in the rolling door process are achieved;
(2) after the installation position of the door rolling machine is determined on the wall through the installation holes, the back plate, the sliding grooves and the sliding strips, the back plate in the installation structure is aligned to the installation position through four groups of installation holes and is fixed on the wall through bolts, the back plate is fixed on the wall installation position, the installation frame is fixed on the wall through two groups of sliding strips with one end parts of installation feet at two sides, the sliding grooves at the top end of the back plate slide into the sliding grooves and are pushed to the bottom for position fixing, when the door rolling machine needs to be detached, maintained and replaced in the later period, the installation seat is directly fixed on the wall through the traditional door rolling machine, holes can be left after the door rolling machine is detached, the original holes cannot be used continuously, the holes need to be punched on the wall, the installation is inconvenient, the attractiveness of the wall is influenced, and the purpose of facilitating replacement and detachment in the later period is achieved;
(3) through being provided with the inner chamber, the preformed groove, bearing and first compression spring, after with rolling door machine shut down, drag the pivot to one side direction, the slider of the inside mount pad of one side can wholly move backward in the inner chamber through the flexible effect of first compression spring in the dismantlement structure, take out the head of one side of pivot and take out the bearing in the structure is dismantled to the other side again from the opposite side after taking out the head from the bearing of opposite side, take out the pivot and take out the roller whole and dismantle the maintenance, can maintain the bearing in the slider simultaneously, during the installation firstly insert the bearing in the preformed groove in the structure is dismantled to one side into to one end of pivot in, then inwards push away and insert the other end in the bearing of opposite side and accomplish the pivot installation, reached and be convenient for dismantle the purpose of maintaining to the book curtain.
Drawings
Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;
FIG. 2 is a schematic view of the winding mechanism of the present invention showing an enlarged partial cross-section in front view;
fig. 3 is an enlarged partial sectional view of the utility model at a in fig. 1;
fig. 4 is a schematic view of the mounting structure of the present invention showing an enlarged top view of a partial section;
fig. 5 is an enlarged schematic view of the front view partial section of the detachment structure of the present invention.
In the figure: 1. a guide rail; 2. a slider; 3. a mounting seat; 4. mounting a foot; 5. a mounting structure; 501. mounting holes; 502. a back plate; 503. a chute; 504. a slide bar; 6. a mounting frame; 7. a rotating shaft; 8. a curtain body; 9. a winding roller; 10. disassembling the structure; 1001. an inner cavity; 1002. reserving a groove; 1003. a bearing; 1004. a first compression spring; 11. a chain; 12. a first sprocket; 13. a movable rod; 14. a servo motor; 15. a second sprocket; 16. a through hole; 17. a locking block; 18. a second compression spring; 19. and (4) locking the groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1: referring to fig. 1-5, an inorganic double-curtain rolling door machine convenient to install comprises a mounting frame 6, guide rails 1 are fixedly connected to two sides and a middle position of one end of the bottom end of the mounting frame 6 respectively, mounting seats 3 are fixedly connected to two sides inside the mounting frame 6 respectively, sliding blocks 2 are arranged inside the mounting seats 3 respectively, mounting feet 4 are fixedly connected to the top ends of one ends of two sides of the mounting frame 6 respectively, mounting structures 5 are arranged at one ends of the mounting feet 4 respectively, a rotating shaft 7 is arranged between the sliding blocks 2, a rolling roller 9 is fixedly connected to the outside of the rotating shaft 7, curtain bodies 8 are fixedly connected to the outside of the rolling roller 9 respectively, a dismounting structure 10 is arranged inside the mounting seat 3 respectively, and a rolling mechanism is arranged at the bottom inside the mounting frame 6;
referring to fig. 1-5, an inorganic double-curtain rolling door machine convenient to install further includes a rolling mechanism, the rolling mechanism includes a movable rod 13, the movable rod 13 is movably connected to the bottom ends of two sides inside an installation frame 6, two sides outside the movable rod 13 are respectively and fixedly connected with a first chain wheel 12, two sides outside a rotating shaft 7 are respectively and fixedly connected with a second chain wheel 15, chains 11 are respectively arranged outside the first chain wheel 12 and the second chain wheel 15, the bottom end of one side of the installation frame 6 is fixedly connected with a servo motor 14, the type of the servo motor 14 can be ASD-a2, the inside of the top end of a sliding block 2 is respectively and fixedly connected with a lock groove 19, the inside of the lock groove 19 is respectively and fixedly connected with a second compression spring 18, the top end of the second compression spring 18 is respectively and fixedly connected with a lock block 17, and the inside of one side of the top end of an installation base 3 is respectively and fixedly connected with a through hole 16;
an output shaft of the servo motor 14 is fixedly connected with one side of the movable rod 13 through a coupler, the first chain wheel 12 and the second chain wheel 15 are respectively meshed with the chain 11, the locking block 17 is semi-cylindrical, and a sliding structure is formed between the locking block 17 and the through hole 16;
specifically, as shown in fig. 1, 2 and 3, when two sets of curtains 8 are retracted or fall down, the switch of the servo motor 14 is started in the winding mechanism, the output shaft of the servo motor 14 drives the movable rod 13 and the first chain wheels 12 fixed at two sides to rotate through the shaft coupling, the first chain wheels 12 rotate to drive the second chain wheels 15 at two sides of the engaged rotating shaft 7 to rotate through the chains 11, the servo motor 14 drives the rotating shaft 7 to rotate forwardly to drive the curtains 8, the servo motor 14 drives the rotating shaft 7 to rotate reversely to drive the curtains 8 to fall down, and simultaneously, the two sides of the curtains 8 are guided by the guide rails 1 to be limited during the falling or winding process, so as to avoid the problems of incomplete extension and the like during the process, during the operation, the locking blocks 17 at the top ends of the sliding blocks 2 at two sides of the rotating shaft 7 can be clamped into the mounting seats 3 fixed at two sides inside the mounting frame 6 to limit the rotating shaft 7 and the curtains 8 outside the winding roller 9 during the operation, the structure is simple and reliable to use, and the rolling and limiting purposes of simple and practical rolling of the rolling door process are achieved.
Example 2: the mounting structure 5 is composed of mounting holes 501, a back plate 502, sliding grooves 503 and sliding strips 504, the back plate 502 is respectively arranged at one end of the mounting feet 4, the four corners of one end of the back plate 502 are respectively and fixedly connected with the mounting holes 501, the sliding grooves 503 are respectively arranged inside two sides of one end of the back plate 502, and the sliding strips 504 are respectively and fixedly connected with two sides of one end of the mounting feet 4;
the slide bar 504 is in a T shape, and the inner size of the sliding groove 503 is larger than the outer size of the slide bar 504;
specifically, as shown in fig. 1 and 4, after the installation position of the door roller is determined on the wall, the back plate 502 in the installation structure 5 is aligned to the installation position through four sets of installation holes 501 and fixed on the wall through bolts, the back plate 502 is fixed on the wall installation position, the installation frame 6 is fixed by two sets of sliding strips 504 with one end of the installation feet 4 at two sides, the sliding groove 503 at the top end of the back plate 502 slides into the sliding groove 503 and pushes the sliding groove 503 to the bottom for position fixing, when the door roller needs to be detached, maintained and replaced in the later period, the installation seat 3 is directly fixed on the wall by the traditional door roller, a hole is left after the door roller is detached, the original hole cannot be used continuously when a new door roller is installed, the hole needs to be punched on the wall repeatedly, the installation is inconvenient, the appearance of the wall is also influenced, and the purpose of facilitating the replacement and detachment in the later period is achieved.
Example 3: the dismounting structure 10 is composed of an inner cavity 1001, a reserved groove 1002, a bearing 1003 and a first compression spring 1004, wherein the inner cavity 1001 is fixedly connected inside the mounting seat 3 respectively, one side inside the inner cavity 1001 is fixedly connected with the first compression spring 1004 respectively, the other side of the first compression spring 1004 is fixedly connected with one side of the sliding block 2 respectively, the reserved grooves 1002 are arranged inside the sliding block 2 respectively, and the bearings 1003 are arranged inside the reserved grooves 1002 respectively;
the bearings 1003 are symmetrically distributed around the vertical center line of the mounting rack 6, and two sides of the rotating shaft 7 penetrate through the bearings 1003 respectively;
specifically, as shown in fig. 1 and 5, after the door roller is stopped, the rotating shaft 7 is dragged in one side direction, the slider 2 inside the mounting base 3 on one side moves backwards in the inner cavity 1001 under the action of the first compression spring 1004 in the detaching structure 10, after the head of the rotating shaft 7 is pulled out from the bearing 1003 on the other side, the other head is pulled out from the bearing 1003 in the detaching structure 10 on the other side, the rotating shaft 7 and the winding roller 9 are taken out integrally for detaching maintenance, and simultaneously the bearing 1003 in the slider 2 can be maintained, when in mounting, one end of the rotating shaft 7 is inserted into the bearing 1003 in the reserved groove 1002 in the detaching structure 10 on one side, and then the other end is pushed inwards to be inserted into the bearing 1003 on the other side, so as to complete the mounting of the rotating shaft 7, thereby achieving the purpose of facilitating the detaching maintenance of the roller shutter.
The working principle is as follows: the utility model discloses when using, at first, confirm behind the installation site of rolling door machine on the wall, with backplate 502 in mounting structure 5 aim at the installation site through four group's mounting holes 501 and use the bolt fastening on the wall, fix backplate 502 behind the wall installation site, utilize two sets of draw runner 504 of 4 end fixings of both sides installation foot with mounting bracket 6, spout 503 from backplate 502 top slides in the inside of spout 503 and pushes away the end and carry out the rigidity, later stage need pull down when maintenance is changed, traditional rolling door machine is with mount pad 3 snap-on the wall, can leave the hole after pulling down, original hole just can not continue to use when installing new rolling door machine and need repeat not be convenient for the installation and has influenced the wall equally beautifully at the wall, the purpose of being convenient for to the change dismantlement in later stage has been reached.
Then, when two groups of curtains 8 are retracted or fall down, the switch of a servo motor 14 is started in a rolling mechanism, the output shaft of the servo motor 14 drives a movable rod 13 and first chain wheels 12 fixed at two sides to rotate through a coupler, the first chain wheels 12 rotate and drive second chain wheels 15 at two sides of a meshed rotating shaft 7 to rotate through chains 11, the servo motor 14 drives the rotating shaft 7 to rotate forward to drive the curtains 8 to roll, the servo motor 14 drives the rotating shaft 7 to rotate backward to drive the curtains 8 to fall down, meanwhile, two sides of the curtains 8 can be guided and limited by guide rails 1 in the falling or rolling process, the problems of incomplete stretching and the like in the process are avoided, in the running process, locking blocks 17 at the top ends of sliding blocks 2 at two sides of the rotating shaft 7 can be clamped into mounting seats 3 fixed at two sides inside the mounting frame 6 to limit the rotating shaft 7 and the curtains 8 outside the rolling roller 9 in the running process, the structure is simple and reliable to use, and the rolling and limiting purposes of simple and practical rolling of the rolling door process are achieved.
Finally, after the door roller is stopped, the rotating shaft 7 is dragged to one side, the sliding block 2 in the mounting base 3 on one side moves backwards in the inner cavity 1001 under the action of the expansion and contraction of the first compression spring 1004 in the detaching structure 10, the head of one side of the rotating shaft 7 is pulled out from the bearing 1003 on the other side, then the other end of the rotating shaft is pulled out from the bearing 1003 in the detaching structure 10 on the other side, the rotating shaft 7 and the winding roller 9 are taken out integrally for detaching maintenance, meanwhile, the bearing 1003 in the sliding block 2 can be maintained, one end of the rotating shaft 7 is inserted into the bearing 1002 in the detaching structure 10 on one side during installation, then the other end of the rotating shaft 7 is pushed inwards and inserted into the bearing 1003 on the other side to complete the installation of the rotating shaft 7, and the purpose of detaching maintenance of the roller shutter is achieved.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides an inorganic double curtain rolling door machine convenient to installation, includes mounting bracket (6), its characterized in that: guide rails (1) are fixedly connected to two sides and the middle position of one end of the bottom end of the mounting frame (6) respectively, mounting seats (3) are fixedly connected to two sides of the inside of the mounting frame (6) respectively, sliding blocks (2) are arranged inside the mounting seats (3) respectively, mounting feet (4) are fixedly connected to the top ends of two ends of the mounting frame (6) respectively, mounting structures (5) are arranged at one ends of the mounting feet (4) respectively, rotating shafts (7) are arranged between the sliding blocks (2), winding rollers (9) are fixedly connected to the outside of the rotating shafts (7), curtain bodies (8) are fixedly connected to the outside of the winding rollers (9) respectively, dismounting structures (10) are arranged inside the mounting seats (3) respectively, and a winding mechanism is arranged at the bottom inside the mounting frame (6);
the winding mechanism comprises a movable rod (13), the movable rod (13) is movably connected with the bottom ends of the two sides in the mounting rack (6), two sides of the outer part of the movable rod (13) are respectively and fixedly connected with a first chain wheel (12), two sides of the outer part of the rotating shaft (7) are respectively and fixedly connected with a second chain wheel (15), the outer parts of the first chain wheel (12) and the second chain wheel (15) are respectively provided with a chain (11), the bottom end of one side of the mounting rack (6) is fixedly connected with a servo motor (14), the inner parts of the top ends of the sliding blocks (2) are respectively and fixedly connected with a locking groove (19), the insides of the locking grooves (19) are respectively and fixedly connected with second compression springs (18), the top ends of the second compression springs (18) are respectively and fixedly connected with a locking block (17), the inside of one side of the top end of the mounting seat (3) is fixedly connected with a through hole (16) respectively.
2. An easily installable inorganic dual curtain roller door opener according to claim 1, wherein: the output shaft of the servo motor (14) is fixedly connected with one side of the movable rod (13) through a coupler, the first chain wheel (12) and the second chain wheel (15) are respectively meshed with the chain (11), the locking block (17) is semi-cylindrical in shape, and a sliding structure is formed between the locking block (17) and the through hole (16).
3. An easily installable inorganic dual curtain roller door opener according to claim 1, wherein: mounting structure (5) comprise mounting hole (501), backplate (502), spout (503) and draw runner (504), backplate (502) set up the one end in installation foot (4) respectively, four corners of backplate (502) one end fixedly connected with mounting hole (501) respectively, the inside of backplate (502) one end both sides is provided with spout (503) respectively, draw runner (504) fixed connection is in the both sides of installation foot (4) one end respectively.
4. An easily installable inorganic dual curtain roller door opener according to claim 3, wherein: the slide bar (504) is in a T shape, and the inner size of the sliding groove (503) is larger than the outer size of the slide bar (504).
5. An easily installable inorganic dual curtain roller door opener according to claim 1, wherein: the dismounting structure (10) is composed of an inner cavity (1001), a reserved groove (1002), a bearing (1003) and a first compression spring (1004), the inner cavity (1001) is fixedly connected inside the mounting seat (3) respectively, one side of the inside of the inner cavity (1001) is fixedly connected with the first compression spring (1004) respectively, the other side of the first compression spring (1004) is fixedly connected with one side of the sliding block (2) respectively, the reserved groove (1002) is arranged inside the sliding block (2) respectively, and the bearing (1003) is arranged inside the reserved groove (1002) respectively.
6. An easily installable inorganic dual curtain roller door opener according to claim 5, wherein: the bearings (1003) are symmetrically distributed around the vertical center line of the mounting rack (6), and two sides of the rotating shaft (7) penetrate through the bearings (1003) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023074965.5U CN214170416U (en) | 2020-12-19 | 2020-12-19 | Inorganic double-curtain door roller convenient to install |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023074965.5U CN214170416U (en) | 2020-12-19 | 2020-12-19 | Inorganic double-curtain door roller convenient to install |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214170416U true CN214170416U (en) | 2021-09-10 |
Family
ID=77606982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023074965.5U Expired - Fee Related CN214170416U (en) | 2020-12-19 | 2020-12-19 | Inorganic double-curtain door roller convenient to install |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214170416U (en) |
-
2020
- 2020-12-19 CN CN202023074965.5U patent/CN214170416U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210910 |