CN215055654U - Steel pipe strutting arrangement for assembly type building construction - Google Patents
Steel pipe strutting arrangement for assembly type building construction Download PDFInfo
- Publication number
- CN215055654U CN215055654U CN202120449377.0U CN202120449377U CN215055654U CN 215055654 U CN215055654 U CN 215055654U CN 202120449377 U CN202120449377 U CN 202120449377U CN 215055654 U CN215055654 U CN 215055654U
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- steel pipe
- supporting
- bracket
- groove
- spring
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 70
- 239000010959 steel Substances 0.000 title claims abstract description 70
- 238000009435 building construction Methods 0.000 title claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims description 3
- 230000003064 anti-oxidating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a steel pipe supporting device for assembly type building construction, the structure of which comprises a longitudinal steel pipe, an adjusting base, a transverse steel pipe, a supporting screw rod and a bracket, the bottom end of the longitudinal steel pipe is meshed with the adjusting base, a middle supporting mechanism is arranged at the middle part of the top of the bracket, a fastening mechanism is arranged on the outer surface of the supporting screw rod, the utility model discloses a middle supporting mechanism is arranged at the middle part of the top of the bracket, when the bracket supports a main beam, a supporting rod is forced to be pressed back into a connecting groove and slides downwards along the sliding cavity, so that the supporting rod pushes a transmission rod to move downwards, the transmission rod extends out of the sliding cavity through a through groove and drives a side plate to move, the side plate slides into the inner side of the sliding groove, and simultaneously the side plate slides along the surface of a limiting block through a spring groove, so that the spring is stressed to shrink, further, the distance between the side plates at the left side and the right sides of the bracket is shortened, thereby the side plate clamps the main beam at the middle part of the bracket, avoiding eccentric stress.
Description
Technical Field
The utility model relates to a construction technical field, concretely relates to steel pipe strutting arrangement is used in assembly type construction.
Background
The fabricated building is a building formed by transferring a large amount of field operation work in the traditional building mode to a factory, processing and manufacturing building components and accessories in the factory, transporting the components and accessories to a building construction site and assembling and mounting the components and the accessories.
The existing steel pipe supporting device generally adopts the top to support the girder, and along with the lapse of time, the wall body of the fabricated building easily produces certain displacement to the steel pipe, leads to the eccentric stress when the top holds in the palm and supports the girder, influences its support steadiness to the screw rod length that holds in the palm is limited, if the top holds in the palm and adjusts too high, then the screw rod remains the length in the steel pipe then short, is difficult to provide firm support for the top holds in the palm, influences the construction progress.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome prior art not enough, the present steel pipe strutting arrangement for assembly type structure construction that provides, it supports to the girder to have solved current steel pipe strutting arrangement and adopt the top to hold in the palm usually, along with the lapse of time, assembly type structure's wall body produces certain displacement to the steel pipe easily, lead to the top to hold in the palm eccentric atress when supporting the girder, influence its support steadiness, and the screw rod length that holds in the palm on the top is limited, if the top holds in the palm and adjusts too high, then the screw rod remains the length in the steel pipe then short, be difficult to support for the top provides firm the support, influence the problem of construction progress.
(II) technical scheme
The utility model discloses a following technical scheme realizes: the utility model provides a steel pipe strutting arrangement for assembly type building construction, including vertical steel pipe, adjustment base, horizontal steel pipe, supporting screw, bracket, support mechanism placed in the middle and fastening mechanism placed in the middle of the bracket top, the fastening mechanism is arranged on the outer surface of the supporting screw, the support mechanism placed in the middle includes spread groove, sliding cavity, supporting rod, spout, side plate, through groove, transfer line, spring groove, stopper and spring, the upper and lower both sides of the bracket middle part are provided with the spread groove in a penetrating way, the supporting screw top is provided with the sliding cavity, and the spread groove is communicated with the sliding cavity inboard, the supporting rod slides along the sliding cavity inboard, the supporting rod top passes the spread groove and extends to the bracket top, the bracket left and right sides all are provided with the spout, the curb plate slides along the spout inboard, the supporting screw upper end left and right sides all is provided with logical groove to lead to the groove and be linked together with smooth intracavity side, transfer line one end carries out normal running fit through hinge and supporting rod, the transfer line other end passes logical groove and extends smooth chamber and carry out normal running fit with the curb plate, both sides run through about the curb plate and are provided with the spring groove, the spout inboard is fixed with the stopper to the curb plate slides along the stopper surface through the spring groove, spring one end is fixed with the spring groove to the spring other end is fixed with the stopper.
Furthermore, both ends are all fixed through connector link and vertical steel pipe about the horizontal steel pipe, vertical steel pipe top is pegged graft with the supporting screw, the welded fastening in supporting screw top has the bracket.
Furthermore, the fastening mechanism comprises a supporting piece, a clamping sleeve and a conical sleeve, the supporting piece is in threaded connection with the outer surface of the supporting screw, the bottom of the supporting screw is attached to the longitudinal steel pipe, the clamping sleeve is fixed at the bottom of the supporting piece and sleeved to the top end of the longitudinal steel pipe, and the conical sleeve is meshed with the outer surface of the clamping sleeve.
Furthermore, spring groove, stopper and spring all are provided with two, and two spring groove, stopper and spring set up along curb plate front and back bilateral symmetry.
Furthermore, the elastic force value of the spring is 2N, and the spring is in a force accumulation state.
Furthermore, the left side and the right side of the bottom of the bracket are both provided with a reserved groove, and the transmission rod and the reserved groove are positioned on the same horizontal direction line.
Furthermore, a waterproof anti-oxidation layer is coated on the outer surface of the side plate, and the side plate is L-shaped.
Furthermore, the central lines of the sliding cavity and the supporting rod are positioned on the same vertical direction line, and the inner wall of the sliding cavity is smooth and has no burrs.
Furthermore, the spring is made of alloy spring steel, so that the heat resistance and the corrosion resistance of the spring are greatly enhanced, and the service life of the spring is prolonged.
Furthermore, the side plates are made of stainless steel, so that the strength, the wear resistance and the corrosion resistance of the side plates are greatly enhanced, and the service life of the side plates is prolonged.
(III) advantageous effects
Compared with the prior art, the utility model, following beneficial effect has:
the method has the advantages that: a steel pipe strutting arrangement for assembly type structure construction, through set up supporting mechanism between two parties at bracket top middle part, when the bracket provides the support for the girder, support pole atress is pressed back in the spread groove and along smooth chamber lapse, make support pole promote the transfer line lapse, the transfer line is extended smooth chamber and is driven the curb plate through leading to the groove and remove, it is inboard to make the curb plate slide in the spout, the curb plate passes through the spring groove simultaneously and follows stopper surface sliding, make the spring atress shrink, and then the curb plate interval of making the bracket left and right sides shortens, thereby make the curb plate with the girder clamping at the bracket middle part, avoid its eccentric atress.
The advantages are two: a steel pipe strutting arrangement for assembly type structure construction, through having set up fastening device at the supporting screw surface, when adjusting the bracket height, it makes it remove on the supporting screw surface to rotate support piece, when support piece rebound, the length that the supporting screw inserted in the vertical steel pipe is longer, and then reduce the height of bracket, when support piece rebound, the length that the supporting screw inserted in the vertical steel pipe reduces, and then the height of rising bracket, adjust the back that finishes, detain to vertical steel pipe top with the clamp cover, then anticlockwise rotation toper cover, make the toper cover follow and press from both sides cover surface rebound, thereby make and press from both sides the cover and tighten up and clamp to vertical steel pipe top under the application of force of toper cover, further promoted supporting screw's steadiness, avoid the bracket to adjust too high support screw unstability that leads to.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the bracket structure of the present invention;
fig. 3 is a schematic view of a front cross-sectional structure of the bracket of the present invention;
fig. 4 is a schematic bottom view of the bracket of the present invention;
fig. 5 is a schematic bottom sectional view of the bracket of the present invention;
fig. 6 is a schematic structural view of the fastening mechanism of the present invention;
fig. 7 is a schematic view of the disassembly structure of the fastening mechanism of the present invention.
In the figure: the device comprises a longitudinal steel pipe-1, an adjusting base-2, a transverse steel pipe-3, a supporting screw-4, a bracket-5, a central supporting mechanism-6, a connecting groove-61, a sliding cavity-62, a supporting rod-63, a sliding groove-64, a side plate-65, a through groove-66, a transmission rod-67, a spring groove-68, a limiting block-69, a spring-610, a fastening mechanism-7, a supporting piece-71, a clamping sleeve-72 and a conical sleeve-73.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, 2, 3, 4, 5, 6 and 7, the present invention provides a steel pipe supporting device for assembly type building construction: the steel tube centering device comprises a longitudinal steel tube 1, an adjusting base 2, a transverse steel tube 3, a supporting screw rod 4, a bracket 5, a centering supporting mechanism 6 and a fastening mechanism 7, wherein the bottom end of the longitudinal steel tube 1 is meshed with the adjusting base 2, the centering supporting mechanism 6 is arranged in the middle of the top of the bracket 5, the fastening mechanism 7 is arranged on the outer surface of the supporting screw rod 4, the centering supporting mechanism 6 comprises a connecting groove 61, a sliding cavity 62, a supporting rod 63, a sliding groove 64, a side plate 65, a through groove 66, a transmission rod 67, a spring groove 68, a limiting block 69 and a spring 610, the upper side and the lower side of the middle of the bracket 5 are provided with the connecting groove 61 in a penetrating manner, the top end of the supporting screw rod 4 is provided with the sliding cavity 62, the connecting groove 61 is communicated with the inner side of the sliding cavity 62, the supporting rod 63 slides along the inner side of the sliding cavity 62, the top end of the supporting rod 63 extends to the top of the bracket 5 through the connecting groove 61, the sliding grooves 64 are arranged on the left side and the right side of the bracket 5, the sliding groove 64 is provided with the sliding groove 65, the left side and the right side of the upper end of the support screw rod 4 are provided with through grooves 66, the through grooves 66 are communicated with the inner side of the sliding cavity 62, one end of a transmission rod 67 is in running fit with the support rod 63 through a hinge, the other end of the transmission rod 67 penetrates through the through grooves 66 to extend out of the sliding cavity 62 and to be in running fit with the side plate 65, the upper side and the lower side of the side plate 65 are provided with spring grooves 68 in a penetrating mode, a limiting block 69 is fixed on the inner side of the sliding groove 64, the side plate 65 slides along the surface of the limiting block 69 through the spring grooves 68, one end of a spring 610 is fixed with the spring grooves 68, and the other end of the spring 610 is fixed with the limiting block 69.
Wherein, both ends are all fixed through connector link and vertical steel pipe 1 about horizontal steel pipe 3, 1 top of vertical steel pipe is pegged graft with supporting screw 4, 4 top welded fastening of supporting screw have bracket 5.
The fastening mechanism 7 comprises a support member 71, a clamping sleeve 72 and a tapered sleeve 73, wherein the support member 71 is in threaded connection with the outer surface of the support screw rod 4, the bottom of the support screw rod 4 is attached to the longitudinal steel pipe 1, the clamping sleeve 72 is fixed at the bottom of the support member 71, the clamping sleeve 72 is sleeved at the top end of the longitudinal steel pipe 1, and the tapered sleeve 73 is meshed with the outer surface of the clamping sleeve 72.
The number of the spring grooves 68, the limiting blocks 69 and the springs 610 is two, and the two spring grooves 68, the limiting blocks 69 and the springs 610 are symmetrically arranged along the front side and the rear side of the side plate 65, so that the side plate 65 can be pushed to move stably.
Wherein, the elastic force value of the spring 610 is 2N, and the spring 610 is in a force accumulation state, which is beneficial to the spring 610 to better push the side plate 65 to reset.
Wherein, the left and right sides of the bottom of the bracket 5 is provided with a reserved groove, and the transmission rod 67 and the reserved groove are positioned on the same horizontal direction line, so that the transmission rod 67 can extend out of the sliding groove 64 through the reserved groove.
The outer surface of the side plate 65 is coated with a waterproof anti-oxidation layer, and the side plate 65 is L-shaped, so that rusting or oxidative corrosion of the outer surface of the side plate 65 caused by long-time use is prevented.
The central lines of the sliding cavity 62 and the supporting rod 63 are on the same vertical direction line, and the inner wall of the sliding cavity 62 is smooth and burr-free, so that the supporting rod 63 is prevented from being jammed when sliding.
The spring 610 is made of alloy spring steel, so that the heat resistance and the corrosion resistance of the spring can be greatly enhanced, and the service life of the spring is prolonged.
The side plate 65 is made of stainless steel, so that the strength, the wear resistance and the corrosion resistance of the side plate are greatly enhanced, and the service life of the side plate is prolonged.
The stainless steel used for the side plate 65 is a steel type which is resistant to weak corrosive mediums such as air, steam, water and the like and has rust resistance, in practical application, the steel resistant to the weak corrosive mediums is often called stainless steel, the steel resistant to the corrosion of chemical mediums is called acid-resistant steel, and the corrosion resistance of the stainless steel depends on alloy elements contained in the steel.
The working principle is as follows: firstly, before use, the longitudinal steel pipe 1 is horizontally placed, the adjusting base 2 at the bottom provides stable support for the longitudinal steel pipe 1, a user can adjust the height of the longitudinal steel pipe 1 and the ground by rotating the adjusting base 2, then the longitudinal steel pipe 1 is connected with the ground through the transverse steel pipe 3, and the stability of the longitudinal steel pipe 1 is further improved;
secondly, when the height of the bracket 5 is adjusted, the support 71 is rotated to move on the surface of the support screw 4, when the support 71 moves upwards, the length of the support screw 4 inserted into the longitudinal steel pipe 1 is longer, so that the height of the bracket 5 is reduced, when the support 71 moves downwards, the length of the support screw 4 inserted into the longitudinal steel pipe 1 is reduced, so that the height of the bracket 5 is increased, after the adjustment is finished, the jacket 72 is buckled at the top end of the longitudinal steel pipe 1, then the conical sleeve 73 is rotated anticlockwise, so that the conical sleeve 73 moves upwards along the surface of the jacket 72, so that the jacket 72 is tightened and clamped at the top end of the longitudinal steel pipe 1 under the force of the conical sleeve 73, the stability of the support screw 4 is further improved, and the support screw 4 is prevented from being unstable due to the overhigh adjustment of the bracket 5;
thirdly, when the bracket 5 supports the main beam, the supporting rod 63 is forced to press back into the connecting groove 61 and slide downwards along the sliding cavity 62, so that the supporting rod 63 pushes the transmission rod 67 to move downwards, the transmission rod 67 extends out of the sliding cavity 62 through the through groove 66 and drives the side plate 65 to move, the side plate 65 slides into the sliding groove 64, meanwhile, the side plate 65 slides along the surface of the limit block 69 through the spring groove 68, so that the spring 610 is forced to contract, the distance between the side plates 65 on the left side and the right side of the bracket 5 is shortened, the main beam is clamped in the middle of the bracket 5 by the side plate 65, the eccentric stress is avoided, after the support of the main beam is released, the elastic force of the spring 610 recovering the deformation pushes the side plate 65 to reset, the side plate 65 is prevented from being separated from the sliding groove 64 by the limit block 69, and the supporting rod 63 can automatically reset.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied 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.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A steel pipe supporting device for assembly type building construction comprises a longitudinal steel pipe (1), an adjusting base (2), a transverse steel pipe (3), a supporting screw rod (4) and a bracket (5), wherein the bottom end of the longitudinal steel pipe (1) is meshed with the adjusting base (2);
the method is characterized in that: the supporting mechanism (6) placed in the middle is arranged in the middle of the top of the bracket (5), the fastening mechanism (7) is arranged on the outer surface of the supporting screw rod (4), the supporting mechanism (6) placed in the middle comprises a connecting groove (61), a sliding cavity (62), a supporting rod (63), a sliding groove (64), a side plate (65), a through groove (66), a transmission rod (67), a spring groove (68), a limiting block (69) and a spring (610), the connecting groove (61) is arranged on the upper side and the lower side of the middle of the bracket (5) in a penetrating mode, the sliding cavity (62) is arranged at the top end of the supporting screw rod (4), the connecting groove (61) is communicated with the inner side of the sliding cavity (62), the supporting rod (63) slides along the inner side of the sliding cavity (62), and the top end of the supporting rod (63) penetrates through the connecting groove (61) and extends to the top of the bracket (5), the left side and the right side of the bracket (5) are both provided with sliding grooves (64), the side plate (65) slides along the inner sides of the sliding grooves (64), the left side and the right side of the upper end of the supporting screw rod (4) are both provided with through grooves (66), and the through groove (66) is communicated with the inner side of the sliding cavity (62), one end of the transmission rod (67) is rotationally matched with the supporting rod (63) through a hinge, the other end of the transmission rod (67) passes through the through groove (66) to extend out of the sliding cavity (62) and is in running fit with the side plate (65), spring grooves (68) are arranged on the upper side and the lower side of the side plate (65) in a penetrating manner, a limiting block (69) is fixed on the inner side of the sliding groove (64), and the side plate (65) slides along the surface of the limit block (69) through the spring groove (68), one end of the spring (610) is fixed with the spring groove (68), and the other end of the spring (610) is fixed with the limiting block (69).
2. The steel pipe supporting device for fabricated building construction according to claim 1, wherein: both ends are all fixed through connector link and vertical steel pipe (1) about horizontal steel pipe (3), vertical steel pipe (1) top is pegged graft with supporting screw (4), supporting screw (4) top welded fastening has bracket (5).
3. The steel pipe supporting device for fabricated building construction according to claim 1, wherein: the fastening mechanism (7) comprises a supporting piece (71), a clamping sleeve (72) and a conical sleeve (73), the supporting piece (71) is in threaded connection with the outer surface of the supporting screw rod (4), the bottom of the supporting screw rod (4) is attached to the longitudinal steel pipe (1), the clamping sleeve (72) is fixed at the bottom of the supporting piece (71), the clamping sleeve (72) is sleeved at the top end of the longitudinal steel pipe (1), and the conical sleeve (73) is meshed with the outer surface of the clamping sleeve (72).
4. The steel pipe supporting device for fabricated building construction according to claim 1, wherein: the two spring grooves (68), the two limiting blocks (69) and the two springs (610) are arranged symmetrically along the front side and the rear side of the side plate (65).
5. The steel pipe supporting device for fabricated building construction according to claim 1, wherein: the elastic force value of the spring (610) is 2N, and the spring (610) is in a force accumulation state.
6. The steel pipe supporting device for fabricated building construction according to claim 1, wherein: the left side and the right side of the bottom of the bracket (5) are provided with reserved grooves, and the transmission rod (67) and the reserved grooves are located on the same horizontal direction line.
7. The steel pipe supporting device for fabricated building construction according to claim 1, wherein: the outer surface of the side plate (65) is coated with a waterproof anti-oxidation layer, and the side plate (65) is L-shaped.
8. The steel pipe supporting device for fabricated building construction according to claim 1, wherein: the center lines of the sliding cavity (62) and the supporting rod (63) are positioned on the same vertical direction line, and the inner wall of the sliding cavity (62) is smooth and has no burrs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120449377.0U CN215055654U (en) | 2021-03-02 | 2021-03-02 | Steel pipe strutting arrangement for assembly type building construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120449377.0U CN215055654U (en) | 2021-03-02 | 2021-03-02 | Steel pipe strutting arrangement for assembly type building construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215055654U true CN215055654U (en) | 2021-12-07 |
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ID=79254305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120449377.0U Expired - Fee Related CN215055654U (en) | 2021-03-02 | 2021-03-02 | Steel pipe strutting arrangement for assembly type building construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215055654U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439273A (en) * | 2022-03-30 | 2022-05-06 | 王瑶 | A assembled building strutting arrangement for among building engineering |
| CN115949236A (en) * | 2022-12-28 | 2023-04-11 | 中煤第三建设（集团）有限责任公司 | Baffle fixed equipment |
| CN116220431A (en) * | 2023-04-26 | 2023-06-06 | 山西路桥景泰房地产开发有限公司 | Building roof beam strutting arrangement |
| KR102646108B1 (en) * | 2022-09-26 | 2024-03-11 | 박지현 | A support for construction |
-
2021
- 2021-03-02 CN CN202120449377.0U patent/CN215055654U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439273A (en) * | 2022-03-30 | 2022-05-06 | 王瑶 | A assembled building strutting arrangement for among building engineering |
| KR102646108B1 (en) * | 2022-09-26 | 2024-03-11 | 박지현 | A support for construction |
| CN115949236A (en) * | 2022-12-28 | 2023-04-11 | 中煤第三建设（集团）有限责任公司 | Baffle fixed equipment |
| CN116220431A (en) * | 2023-04-26 | 2023-06-06 | 山西路桥景泰房地产开发有限公司 | Building roof beam strutting arrangement |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211207 |