CN111648639A - Strenghthened type electric power corner cross arm - Google Patents
Strenghthened type electric power corner cross arm Download PDFInfo
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- CN111648639A CN111648639A CN202010535836.7A CN202010535836A CN111648639A CN 111648639 A CN111648639 A CN 111648639A CN 202010535836 A CN202010535836 A CN 202010535836A CN 111648639 A CN111648639 A CN 111648639A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
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Abstract
The invention relates to a reinforced electric corner cross arm which comprises a fixing ring and an electric cross arm, wherein a connecting device is rotatably arranged on the periphery of the fixing ring, the electric cross arm is fixedly arranged on the connecting device, the connecting device comprises a connecting block, the horizontal section of the connecting block is a right-angled triangle with an arc-shaped bevel edge, a T-shaped groove extending along the right-angled edge of the connecting block is formed in the vertical surface of the connecting block, the two groups of T-shaped grooves are communicated, and the corner cross arm is clamped in the T-shaped groove. The corner cross arm is fixed on the connecting device, so that the outer corner of the connecting block plays a certain supporting role for the inner corner of the corner cross arm, meanwhile, the bottom of the T-shaped groove plays a certain supporting role for the corner cross arm, and multi-point position fixing of the corner cross arm is realized by utilizing a plurality of groups of tightening mechanisms; according to the invention, the connecting device is rotatably arranged on the fixing ring, so that the connecting device can drive the corner cross arm to adjust the angle, and the connecting device can be conveniently fixed after transposition by arranging a plurality of groups of limiting mechanisms.
Description
Technical Field
The invention relates to the technical field of electric power cross arms, in particular to a reinforced electric power corner cross arm.
Background
The cross arm is an important component in a tower and is used for installing insulators and hardware fittings so as to support a conducting wire and a lightning conductor and keep a certain safety distance according to regulations. The tension-resistant wire drawing machine can be divided into a linear cross arm, a tension-resistant cross arm and a corner cross arm according to a using method, and the corner cross arm can bear larger one-side wire tension besides bearing vertical and horizontal loads of a wire.
The conventional corner cross arm is fixed on an electric pole through a hoop, and the inner corner of the corner cross arm is not in contact with the electric pole, so that the corner of the corner cross arm is stressed for a long time, but the inner corner of the corner cross arm does not have corresponding anti-support force; secondly, the traction angle can not be adjusted after the corner cross arm is installed, and the angle can be adjusted only by rotating the corresponding angle after the hoop is disassembled
Therefore, the invention provides the reinforced electric corner cross arm.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: a reinforced electric corner cross arm comprises a fixing ring and an electric cross arm, wherein a connecting device is rotatably arranged on the periphery of the fixing ring, the electric cross arm is fixedly installed on the connecting device, the fixing ring comprises a circular ring, an opening is formed in the circular ring, rectangular plates are arranged at two ends of the opening, two groups of rectangular plates are fixedly connected through bolts penetrating through the side walls of the rectangular plates, annular grooves are formed in the top and the bottom of the circular ring, a plurality of groups of annularly distributed telescopic grooves are formed in the top of the circular ring, a limiting mechanism is slidably arranged in the telescopic grooves, a first threaded hole is formed in the position, corresponding to the telescopic grooves, of the inner wall of the circular ring, a feeding piece is screwed in the first threaded hole, and the tail end of the feeding piece extends into the telescopic grooves and is rotatably connected with the;
the connecting device comprises a connecting block, the horizontal cutting surface of the connecting block is a right-angled triangle with an arc-shaped bevel edge, an arc-shaped groove is formed in the position, corresponding to the circular ring, of the curved surface of the connecting block, arc-shaped bulges are arranged on the upper side and the lower side of the arc-shaped groove, corresponding to the circular groove, the circular ring extends into the arc-shaped groove, the arc-shaped bulges are in butt joint with the circular groove in a sliding mode, a limiting groove is formed in the middle of the curved surface of the connecting block, and the depth and; the vertical surface of the connecting block is provided with T-shaped grooves extending along the right-angle sides of the connecting block, the two groups of T-shaped grooves are communicated, the top of each T-shaped groove is provided with second threaded holes linearly distributed along the length direction of the T-shaped groove, the bottom of each T-shaped groove is provided with threaded grooves corresponding to the second threaded holes one by one, and the diameter of each threaded groove is smaller than that of each second threaded hole;
the electric cross arm comprises an L-shaped rod clamped in the T-shaped groove and a plurality of groups of insulators arranged at the top of the L-shaped rod, the insulators are uniformly distributed along the length direction of the L-shaped rod, circular through holes with the same diameter are formed in the positions, corresponding to the threaded grooves, of the bottom of the L-shaped rod, a positioning rod penetrates through the second threaded hole, and the bottom end of the positioning rod penetrates through the circular through holes to be led to the threaded grooves and is fixedly connected with the threaded grooves in a threaded manner; and a tightening mechanism is arranged at the top of the positioning rod.
Preferably, one end of the telescopic groove extends to the outer annular surface of the circular ring, the other end of the telescopic groove is closed, the telescopic groove spans over the annular groove, and the depth of the telescopic groove is greater than that of the annular groove.
Preferably, stop gear overlaps the lift shell at the rectangular block top including the rectangle piece and the activity that slide setting in flexible groove, and the top of rectangle piece is passed through spring and lift shell fixed connection, and the outer wall of lift shell is close to one side of first screw hole and is the opening form.
Preferably, the feeding piece comprises a screw rod penetrating through the first threaded hole and a handle vertically arranged at the tail end of the screw rod, a shaft groove is formed in the position, corresponding to the first threaded hole, of the outer wall of the rectangular block, and the tail end of the screw rod is rotatably connected with the rectangular block through a bearing.
Preferably, one end of the L-shaped rod is provided with a rectangular through hole extending along the length direction of the L-shaped rod, and the rectangular through hole is communicated with the other end of the L-shaped rod.
Preferably, tightening mechanism includes the external screw thread ring of spiro union in the second screwed hole, and the inner wall of external screw thread ring is provided with the internal thread with locating lever matched with, the external fixation of external screw thread ring is provided with the limiting plate, and the limiting plate is provided with two sets ofly, and the distribution about being, the external fixation and the rolling of limiting plate have the tightening belt, and the bottom fixed connection of L type pole and connecting block is walked around to the end in tightening belt.
Preferably, one end of each rectangular plate extends into the circular ring, the end is arc-shaped, and a space exists between the two groups of rectangular plates.
Advantageous effects
1. The corner cross arm is fixed on the connecting device, so that the outer corner of the connecting block plays a certain supporting role for the inner corner of the corner cross arm, meanwhile, the bottom of the T-shaped groove plays a certain supporting role for the corner cross arm, and multi-point position fixing of the corner cross arm is realized by utilizing a plurality of groups of tightening mechanisms;
2. according to the invention, the connecting device is rotatably arranged on the fixing ring, so that the connecting device can drive the corner cross arm to adjust the angle, and the connecting device can be conveniently fixed after transposition by arranging a plurality of groups of limiting mechanisms.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a top view of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a perspective view of the retaining ring of the present invention;
FIG. 4 is a cut-away view of the retaining ring of the present invention;
FIG. 5 is a perspective view of the spacing mechanism of the present invention;
FIG. 6 is a perspective view of the connection device of the present invention;
FIG. 7 is a perspective view from another perspective of the coupling device of the present invention;
FIG. 8 is a perspective view of the corner cross arm of the present invention;
fig. 9 is an enlarged schematic view of region a of fig. 2 according to the present invention.
In the figure: 10. a fixing ring; 11. a circular ring; 12. a rectangular plate; 121. a bolt; 13. an annular groove; 14. a telescopic groove; 15. a limiting mechanism; 151. a rectangular block; 152. a lifting shell; 153. a spring; 16. a first threaded hole; 17. a feed member; 171. a screw; 172. a handle; 20. a connecting device; 21. connecting blocks; 22. an arc-shaped groove; 23. an arc-shaped bulge; 24. a limiting groove; 25. a T-shaped groove; 26. a second threaded hole; 27. a thread groove; 28. positioning a rod; 29. a tightening mechanism; 291. a threaded ring; 292. a limiting plate; 293. tightening the belt; 30. an electric cross arm; 31. an L-shaped bar member; 311. a rectangular through hole; 312. a circular through hole; 32. an insulator.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 9, a reinforced electric corner cross arm comprises a fixing ring 10 and a connecting device 20 rotatably arranged on the periphery of the fixing ring 10, wherein an electric cross arm 30 is fixedly mounted on the outer wall of the connecting device 20; the fixing ring 10 comprises a circular ring 11, an opening is formed in the circular ring 11, rectangular plates 12 are arranged at two ends of the opening, one end of each rectangular plate 12 extends into the circular ring 11 and is arc-shaped, a space is formed between every two groups of rectangular plates 12, the two groups of rectangular plates 12 are fixedly connected through bolts 121 penetrating through the side walls of the rectangular plates, annular grooves 13 are formed in the top and the bottom of the circular ring 11, and two ends of each annular groove 13 extend to the opening;
the connecting device 20 comprises a connecting block 21, the horizontal section of the connecting block 21 is a right-angled triangle with an arc-shaped bevel edge, the bevel edge of the connecting block 21 is close to the ring 11, an arc-shaped groove 22 is formed in the position, corresponding to the ring 11, of the outer wall of the connecting block 21, the ring 11 extends into the arc-shaped groove 22, the upper side and the lower side of the ring 11 are in contact with the inner wall of the arc-shaped groove 22, arc-shaped protrusions 23 are arranged at the positions, corresponding to the annular groove 13, of the upper side and the lower side of the arc-shaped groove 22, the arc-shaped protrusions 23 are in sliding butt joint with the;
the top of the circular ring 11 is provided with a plurality of groups of annularly distributed telescopic grooves 14, one end of each telescopic groove 14 extends to the outer annular surface of the circular ring 11, the other end of each telescopic groove 14 is closed, the depth of each telescopic groove 14 is greater than that of each annular groove 13, the middle of the curved surface of each connecting block 21 is provided with a limiting groove 24, the depth and the width of each limiting groove 24 are the same as those of each telescopic groove 14, and each telescopic groove 14 is internally provided with a limiting mechanism 15 in a sliding manner;
the limiting mechanism 15 comprises a rectangular block 151 arranged in the telescopic groove 14 in a sliding manner and a lifting shell 152 movably sleeved on the top of the rectangular block 151, the top of the rectangular block 151 is fixedly connected with the lifting shell 152 through a spring 153, a first threaded hole 16 is formed in the inner wall of the circular ring 11 at a position corresponding to the telescopic groove 14, a feeding piece 17 is screwed in the first threaded hole 16, and the feeding piece 17 comprises a screw 171 penetrating through the first threaded hole 16 and a handle 172 vertically arranged at the tail end of the screw 171; a shaft groove is formed in the position, corresponding to the first threaded hole 16, of the outer wall of the rectangular block 151, the tail end of the screw rod 171 is rotatably connected with the rectangular block 151 through a bearing, and one side, close to the screw rod 171, of the outer wall of the lifting shell 152 is open; the handle 172 is rotated to drive the screw 171 to rotate, the screw 171 passes through the first threaded hole 16 and feeds into the telescopic slot 14, the rectangular block 151 moves towards the opening end of the telescopic slot 14 under the pushing of the screw 171, after the limiting slot 24 on the connecting block 21 rotates to the position aligned with the telescopic slot 14, the handle 172 is continuously rotated, the limiting mechanism 15 is clamped in the telescopic slot 14 and the limiting slot 24 under the pushing of the screw 171, and at the moment, the position of the connecting block 21 is fixed;
the lifting height of the lifting shell 152 is changed along with the different pressure of the spring 153, and the top of the lifting shell 152 is abutted against the bottom of the arc-shaped bulge 23 under the action of the elastic force of the spring 153, so that the friction force between the connecting block 21 and the circular ring 11 is increased, and the limiting mechanism 15 in the limiting groove 24 is assisted to be limited;
the vertical surface of the connecting block 21 is provided with T-shaped grooves 25 extending along the right-angle sides of the connecting block, the two groups of T-shaped grooves 25 are communicated, the top of each T-shaped groove 25 is provided with second threaded holes 26 linearly distributed along the length direction of the T-shaped groove, the bottom of each T-shaped groove 25 is provided with threaded grooves 27 corresponding to the second threaded holes 26 one by one, the diameter of each threaded groove 27 is smaller than that of each second threaded hole 26, each electric cross arm 30 comprises an L-shaped rod 31 clamped in the T-shaped groove 25, and the positions, corresponding to the threaded grooves 27, of the bottoms of the L-shaped rods 31 are provided with; a positioning rod 28 penetrates through the second threaded hole 26, the diameter of the positioning rod 28 is the same as that of the threaded groove 27, the bottom end of the positioning rod 28 penetrates through the circular through hole 312 to be led to the inside of the threaded groove 27 and is fixedly connected with the threaded groove 27 in a threaded manner, the top end of the positioning rod 28 is led to the upper part of the connecting block 21, and the positioning rod 28 plays a role in limiting and fixing the L-shaped rod 31;
a tightening mechanism 29 is arranged at the top of the positioning rod 28, the tightening mechanism 29 comprises an external thread ring 291 screwed in the second threaded hole 26, internal threads matched with the positioning rod 28 are arranged on the inner wall of the external thread ring 291, two groups of limiting plates 292 are fixedly arranged outside the external thread ring 291, the limiting plates 292 are distributed up and down, a tightening belt 293 is fixed and wound outside the limiting plates 292, and the tail end of the tightening belt 293 bypasses the L-shaped rod 31 and is fixedly connected with the bottom of the connecting block 21; the external thread ring 291 is rotated to be gradually screwed into the second threaded hole 26, the tightening belt 293 is wound on the external thread ring 291 in the rotating process of the external thread ring 291, so that the L-shaped rod 31 is tightened, the supporting force for the inner angle of the L-shaped rod 31 is enhanced by the arrangement of the connecting block 21, and meanwhile, the L-shaped rod 31 can be driven to rotate for a certain angle; one end of the L-shaped rod 31 is provided with a rectangular through hole 311 extending along the length direction of the L-shaped rod 31, the rectangular through hole 311 leads to the other end of the L-shaped rod 31, the arrangement of the rectangular through hole 311 reduces the self weight of the L-shaped rod 31 and the load of the connecting block 21, and a plurality of groups of insulators 32 distributed along the length direction of the L-shaped rod 31 are mounted at the top of the L-shaped rod 31; the circular ring 11 is made of spring steel, so that the circular ring can conveniently penetrate through the connecting block 21;
the working principle is as follows: when the L-shaped rod 31 is used, the L-shaped rod 31 is firstly clamped in the T-shaped groove 25 in a butt joint mode, the circular through holes 312 correspond to the thread grooves 27 one by one, the bottom end of the positioning rod 28 penetrates through the second thread hole 26 and the circular through hole 312, the positioning rod 28 is screwed in the thread grooves 27 by rotating the positioning rod 28, the tightening belt 293 fixed at the bottom of the connecting block 21 is wound around the L-shaped rod 31, the tail end of the tightening belt is tied on the external thread ring 291, the external thread ring 291 is aligned with the second thread hole 26 and is screwed with the second thread hole 26 and the positioning rod 28, the tightening belt 293 is gradually wound and tightened, the L-shaped rod 31 is tightly tied, and a plurality of groups of tightening mechanisms 29 are arranged to fix two sides and corners of the L-shaped rod 31 in a multi-point mode;
the connecting block 21 is rotated to move along the annular groove 13, the top of the lifting shell 152 is abutted against the bottom of the arc-shaped protrusion 23 under the action of the elastic force of the spring 153, when the limiting groove 24 is aligned with one group of the telescopic grooves 14, the lifting shell 152 in the group of the telescopic grooves 14 is not extruded by the arc-shaped protrusion 23 any more, at the moment, the lifting shell 152 bounces upwards under the action of the elastic force of the lifting shell 152, the feeding piece 17 is rotated to feed the feeding piece into the telescopic grooves 14, the screw 171 pushes the rectangular block 151 to move towards the direction of the limiting groove 24, when the limiting mechanism 15 is clamped with the telescopic grooves 14 and the limiting grooves 24 at the same time, the position of the connecting block 21 is fixed, the rest of the feeding pieces 17 are rotated, and the extending length of the feeding piece 17 is shortened;
the circular ring 11 is sleeved on the top of the electric pole, and when the outer wall of the electric pole is contacted with the tail end of the feeding piece 17 and the tail ends of the rectangular plates 12, the two groups of rectangular plates 12 are locked and fixed by using bolts 121.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a strenghthened type electric power corner cross arm, includes solid fixed ring (10) and electric power cross arm (30), its characterized in that: the electric power cross arm fixing device is characterized in that a connecting device (20) is rotatably arranged on the periphery of the fixing ring (10), the electric power cross arm (30) is fixedly installed on the connecting device (20), the fixing ring (10) comprises a circular ring (11), an opening is formed in the circular ring (11), rectangular plates (12) are arranged at two ends of the opening, two groups of rectangular plates (12) are fixedly connected through bolts (121) penetrating through the side walls of the two groups of rectangular plates, annular grooves (13) are formed in the top and the bottom of the circular ring (11), a plurality of groups of annularly distributed telescopic grooves (14) are formed in the top of the circular ring (11), a limiting mechanism (15) is arranged in the telescopic grooves (14) in a sliding mode, a first threaded hole (16) is formed in the position, corresponding to the telescopic grooves (14), of the inner wall of the circular ring (11), a feeding piece (17) is screwed in the first threaded hole (16), and the tail end of, and is rotationally connected with a limiting mechanism (15);
the connecting device (20) comprises a connecting block (21), the horizontal section of the connecting block (21) is a right-angled triangle with a circular arc-shaped bevel edge, an arc-shaped groove (22) is formed in the position, corresponding to the circular ring (11), of the curved surface of the connecting block (21), arc-shaped protrusions (23) are arranged on the upper side and the lower side of the arc-shaped groove (22) and corresponding to the circular groove (13), the circular ring (11) extends into the arc-shaped groove (22), the arc-shaped protrusions (23) are in sliding butt joint with the circular groove (13), a limiting groove (24) is formed in the middle of the curved surface of the connecting block (21), and the depth and the width of the limiting groove (24) are the same; the vertical surface of the connecting block (21) is provided with T-shaped grooves (25) extending along the right-angle sides of the connecting block, the two groups of T-shaped grooves (25) are communicated, the top of each T-shaped groove (25) is provided with second threaded holes (26) which are linearly distributed along the length direction of the T-shaped groove, the bottom of each T-shaped groove (25) is provided with threaded grooves (27) which correspond to the second threaded holes (26) one by one, and the diameters of the threaded grooves (27) are smaller than those of the second threaded holes (26);
the electric power cross arm (30) comprises L-shaped rods (31) clamped in the T-shaped grooves (25) and a plurality of groups of insulators (32) arranged at the tops of the L-shaped rods (31), the insulators (32) are uniformly distributed along the length direction of the L-shaped rods (31), round through holes (312) with the same diameter are formed in the positions, corresponding to the thread grooves (27), of the bottoms of the L-shaped rods (31), positioning rods (28) penetrate through the second thread holes (26), and the bottom ends of the positioning rods (28) penetrate through the round through holes (312) to be led to the thread grooves (27) and are fixedly connected with the thread grooves (27) in a threaded mode; and a tightening mechanism (29) is arranged at the top of the positioning rod (28).
2. The reinforced electric corner cross arm of claim 1, wherein: one end of the telescopic groove (14) extends to the outer ring surface of the circular ring (11), the other end of the telescopic groove is closed, the telescopic groove (14) spans the annular groove (13), and the depth of the telescopic groove (14) is larger than that of the annular groove (13).
3. The reinforced electric corner cross arm of claim 1, wherein: stop gear (15) are established lift shell (152) at rectangular block (151) top including rectangle piece (151) and the activity cover that slide setting in flexible groove (14), and spring (153) and lift shell (152) fixed connection are passed through to the top of rectangle piece (151), and the outer wall of lift shell (152) is close to one side of first screw hole (16) and is the opening form.
4. The reinforced electric corner cross arm of claim 3, wherein: the feeding piece (17) comprises a screw (171) penetrating through the first threaded hole (16) and a handle (172) vertically arranged at the tail end of the screw (171), a shaft groove is formed in the position, corresponding to the first threaded hole (16), of the outer wall of the rectangular block (151), and the tail end of the screw (171) is rotatably connected with the rectangular block (151) through a bearing.
5. The reinforced electric corner cross arm of claim 1, wherein: one end of the L-shaped rod (31) is provided with a rectangular through hole (311) extending along the length direction of the L-shaped rod (31), and the rectangular through hole (311) leads to the other end of the L-shaped rod (31).
6. The reinforced electric corner cross arm of claim 1, wherein: tightening mechanism (29) are including external screw thread ring (291) of spiro union in second screw hole (26), and the inner wall of external screw thread ring (291) is provided with the internal thread with locating lever (28) matched with, the external fixation of external screw thread ring (291) is provided with limiting plate (292), and limiting plate (292) are provided with two sets ofly, distribute from top to bottom, and the external fixation and the rolling of limiting plate (292) have tightening belt (293), and the bottom fixed connection of L type pole (31) and connecting block (21) is walked around to the end of tightening belt (293).
7. The reinforced electric corner cross arm of claim 1, wherein: one end of each rectangular plate (12) extends into the circular ring (11), the end is arc-shaped, and a space exists between the two groups of rectangular plates (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010535836.7A CN111648639A (en) | 2020-06-12 | 2020-06-12 | Strenghthened type electric power corner cross arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010535836.7A CN111648639A (en) | 2020-06-12 | 2020-06-12 | Strenghthened type electric power corner cross arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111648639A true CN111648639A (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010535836.7A Withdrawn CN111648639A (en) | 2020-06-12 | 2020-06-12 | Strenghthened type electric power corner cross arm |
Country Status (1)
| Country | Link |
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| CN (1) | CN111648639A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942957A (en) * | 2021-01-28 | 2021-06-11 | 贵州电网有限责任公司 | 10kV distribution lines cross arm installation assistor |
| CN114718367A (en) * | 2022-05-05 | 2022-07-08 | 浙江和力电力设施有限公司 | Electric power cross arm |
| CN117306937A (en) * | 2023-11-30 | 2023-12-29 | 任丘市召明电力设备有限公司 | Corner cross arm of power line |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942957A (en) * | 2021-01-28 | 2021-06-11 | 贵州电网有限责任公司 | 10kV distribution lines cross arm installation assistor |
| CN114718367A (en) * | 2022-05-05 | 2022-07-08 | 浙江和力电力设施有限公司 | Electric power cross arm |
| CN114718367B (en) * | 2022-05-05 | 2022-12-23 | 浙江和力电力设施有限公司 | Electric power cross arm |
| CN117306937A (en) * | 2023-11-30 | 2023-12-29 | 任丘市召明电力设备有限公司 | Corner cross arm of power line |
| CN117306937B (en) * | 2023-11-30 | 2024-01-30 | 任丘市召明电力设备有限公司 | Corner cross arm of power line |
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Application publication date: 20200911 |