CN213579462U - Infrared detection device for textile machine - Google Patents
Infrared detection device for textile machine Download PDFInfo
- Publication number
- CN213579462U CN213579462U CN202023182921.4U CN202023182921U CN213579462U CN 213579462 U CN213579462 U CN 213579462U CN 202023182921 U CN202023182921 U CN 202023182921U CN 213579462 U CN213579462 U CN 213579462U
- Authority
- CN
- China
- Prior art keywords
- bevel gear
- transmission
- support frame
- fixedly connected
- lifting adjusting
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model discloses an infrared detection device for weaving machine, concretely relates to spinning machine check out test set technical field, which comprises a base, the top fixedly connected with spindle frame on chassis, the side of spindle frame rotates through the bearing frame and is connected with the textile raw material stick, the top fixed mounting on chassis has the numerical control loom, the top fixedly connected with level (l) ing case on chassis, the inside of level (l) ing case is provided with horizontal adjustment mechanism, the top slip of level (l) ing case is provided with first support frame and the second support frame of symmetric distribution, the bottom fixedly connected with transmission case of first support frame and second support frame. The utility model discloses be convenient for form automatic control system, reduce artifical level (l) ing work load, reduce artifical level (l) ing working strength, reduce the energy consumption, reduce the manufacturing cost of enterprise, enlarge detection range, improve and detect the precision, the equipment maintenance of being convenient for, the equipment of being convenient for uses widely.
Description
Technical Field
The utility model relates to a textile machinery check out test set technical field, more specifically says, the utility model relates to a weaving machine infrared detection device.
Background
The textile machines are also called textile machines, weaving machines, cotton spinning machines and the like, and the ancient textile machines are weaving machines driven by manpower. The textile machine is a general name of a tool for processing raw materials such as threads, silks, hemp and the like into silk threads and then weaving the silk threads into cloth.
But when in actual use, current weaving machine infrared detection device is fixed mostly on weaving machine's discharge mechanism, need stop weaving machine work during the regulation, and it is long to consume time, leads to production efficiency to descend, and traditional weaving machine infrared detection device simultaneously detects the precision low, and the detection range is little, and inconvenient equipment is used widely, is unfavorable for the maintenance of equipment.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides an infrared detection device for weaving machine, through horizontal adjustment mechanism, be convenient for form automatic control system, reduce artifical horizontal adjustment work load, reduce artifical horizontal adjustment working strength, reduce the energy consumption, reduce the manufacturing cost of enterprise, set up lift adjustment mechanism simultaneously, enlarge detection range, improve and detect the precision, the equipment maintenance of being convenient for, the equipment of being convenient for uses widely to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an infrared detection device for a textile machine comprises a chassis, wherein a spindle frame is fixedly connected to the top of the chassis, a textile raw material rod is rotatably connected to the side face of the spindle frame through a bearing seat, a numerical control loom is fixedly mounted on the top of the chassis, a horizontal adjusting box is fixedly connected to the top of the chassis, a horizontal adjusting mechanism is arranged inside the horizontal adjusting box, a first supporting frame and a second supporting frame which are symmetrically distributed are arranged on the top of the horizontal adjusting box in a sliding manner, transmission boxes are fixedly connected to the bottoms of the first supporting frame and the second supporting frame, lifting adjusting mechanisms are arranged inside the transmission boxes, the first supporting frame and the second supporting frame, a first hollow threaded slider and a second hollow threaded slider are respectively connected to the inside of the first supporting frame and the second supporting frame in a sliding manner through guide rails, and a mounting plate is fixedly connected to one side, opposite to the first hollow threaded slider and the second hollow threaded slider, the bottom of the mounting plate is fixedly connected with an infrared detector.
Further, horizontal adjustment mechanism includes first motor, the inner wall fixed connection of mount pad and horizontal adjustment case is passed through to the bottom of first motor, the inside fixedly connected with baffler of horizontal adjustment case, the inside of baffler rotates through the bearing frame and is connected with horizontal adjusting screw, horizontal adjusting screw stretches out the output shaft fixed connection of baffler's one end through shaft coupling and first motor.
Furthermore, guide rods which are symmetrically distributed are fixedly connected between the side face of the blocking plate and the inner wall of the horizontal adjusting box, a hollow thread moving seat is connected to the surface of each guide rod in a sliding mode, and the interior of the hollow thread moving seat is connected with the surface of the horizontal adjusting screw in a meshed mode.
Furthermore, lift adjustment mechanism includes the transmission shaft, the both ends of transmission shaft are passed through the bearing frame and are connected with the inner wall rotation of transmission case, the surface of transmission case has the second motor through mount pad fixed mounting, the fixed cover of output shaft of second motor has been connect the drive bevel gear of locating the transmission incasement portion, the fixed surface of transmission shaft has cup jointed driven bevel gear, driven bevel gear is connected with the drive bevel gear meshing.
Furthermore, the lifting adjusting mechanism further comprises a first lifting adjusting screw, the upper end and the lower end of the first lifting adjusting screw are respectively rotatably connected with the inner walls of the transmission box and the first supporting frame through bearing seats, the surface of the first lifting adjusting screw is meshed and connected with the inside of the first hollow threaded slider, a first driven transmission bevel gear is fixedly sleeved on the surface of one end, extending into the transmission box, of the first lifting adjusting screw, a first driving transmission bevel gear and a second driving transmission bevel gear which are symmetrically distributed are fixedly sleeved on the surface of the transmission shaft, and the first driving transmission bevel gear is meshed and connected with the first driven transmission bevel gear.
Furthermore, the lifting adjusting mechanism further comprises a second lifting adjusting screw, the upper end and the lower end of the second lifting adjusting screw are respectively connected with the inner wall of the second support frame through a bearing seat in a rotating mode, the surface of the second lifting adjusting screw is connected with the inner portion of the second hollow threaded slider in a meshed mode, a second driven transmission bevel gear is fixedly sleeved on the surface of one end, extending into the transmission box, of the second lifting adjusting screw, and the second driven transmission bevel gear is connected with the second driving transmission bevel gear in a meshed mode.
Furthermore, the bottoms of the first support frame and the second support frame are fixedly connected with the top of the hollow thread moving seat.
The utility model discloses a technological effect and advantage:
1. by arranging the horizontal adjusting mechanism, compared with the prior art, an automatic control system is convenient to form, the workload of manual horizontal adjustment is reduced, the working intensity of manual horizontal adjustment is reduced, the energy consumption is reduced, and the production cost of enterprises is reduced;
2. through setting up lift adjustment mechanism, compare with prior art, enlarge detection range, improve and detect the precision, the equipment maintenance of being convenient for, the equipment of being convenient for uses widely.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the novel structure of the horizontal adjustment mechanism of the present invention.
Fig. 3 is a schematic view of the novel structure of the lifting adjusting mechanism of the present invention.
The reference signs are: 1. a chassis; 2. a spindle frame; 3. a textile material rod; 4. a numerical control loom; 5. a horizontal adjustment box; 6. a first support frame; 7. a second support frame; 8. a transmission case; 9. a first hollow threaded slider; 10. a second hollow threaded slider; 11. mounting a plate; 12. an infrared detector; 13. a first motor; 14. a barrier plate; 15. a horizontal adjusting screw; 16. a guide bar; 17. a hollow thread moving seat; 18. a drive shaft; 19. a second motor; 20. a drive bevel gear; 21. a driven bevel gear; 22. a first lifting adjusting screw; 23. a first driven drive bevel gear; 24. a first drive bevel gear; 25. a second drive bevel gear; 26. a second lifting adjusting screw; 27. and a second driven transmission bevel gear.
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.
The infrared detection device for the textile machine shown in the attached figures 1-3 comprises a chassis 1, a spindle frame 2 is fixedly connected to the top of the chassis 1, a textile raw material rod 3 is rotatably connected to the side surface of the spindle frame 2 through a bearing seat, a numerical control loom 4 is fixedly installed on the top of the chassis 1, a horizontal adjusting box 5 is fixedly connected to the top of the chassis 1, a horizontal adjusting mechanism is arranged inside the horizontal adjusting box 5, a first supporting frame 6 and a second supporting frame 7 which are symmetrically distributed are arranged on the top of the horizontal adjusting box 5 in a sliding manner, a transmission box 8 is fixedly connected to the bottoms of the first supporting frame 6 and the second supporting frame 7, a lifting adjusting mechanism is arranged inside the transmission box 8, the first supporting frame 6 and the second supporting frame 7, a first hollow threaded slider 9 and a second hollow threaded slider 10 are respectively connected inside the first supporting frame 6 and the second supporting frame 7 in a sliding manner through guide rails, the opposite side of the first hollow thread sliding block 9 and the second hollow thread sliding block 10 is fixedly connected with a mounting plate 11, and the bottom of the mounting plate 11 is fixedly connected with an infrared detector 12.
In a preferred embodiment, the horizontal adjusting mechanism comprises a first motor 13, the bottom of the first motor 13 is fixedly connected with the inner wall of the horizontal adjusting box 5 through a mounting seat, a blocking plate 14 is fixedly connected inside the horizontal adjusting box 5, a horizontal adjusting screw 15 is rotatably connected inside the blocking plate 14 through a bearing seat, and one end of the horizontal adjusting screw 15, which extends out of the blocking plate 14, is fixedly connected with an output shaft of the first motor 13 through a coupler so as to drive the horizontal adjusting screw 15 to rotate by controlling the first motor 13.
In a preferred embodiment, guide rods 16 are fixedly connected between the side surface of the barrier plate 14 and the inner wall of the horizontal adjusting box 5, the guide rods 16 are symmetrically distributed, a hollow thread moving seat 17 is slidably connected to the surface of the guide rods 16, the inside of the hollow thread moving seat 17 is engaged with the surface of the horizontal adjusting screw 15, so that when the horizontal adjusting screw 15 rotates, the inside of the hollow thread moving seat 17 is engaged with the surface of the horizontal adjusting screw 15 to drive the hollow thread moving seat 17 to horizontally move on the surface of the guide rods 16 and the inside of the horizontal adjusting box 5, an automatic control system is formed, the workload of manual horizontal adjustment is reduced, the working strength of manual horizontal adjustment is reduced, the energy consumption is reduced, and the production cost of enterprises is reduced.
In a preferred embodiment, the lifting adjusting mechanism comprises a transmission shaft 18, two ends of the transmission shaft 18 are rotatably connected with the inner wall of the transmission case 8 through bearing seats, a second motor 19 is fixedly installed on the surface of the transmission case 8 through an installation seat, a driving bevel gear 20 arranged inside the transmission case 8 is fixedly sleeved on an output shaft of the second motor 19, a driven bevel gear 21 is fixedly sleeved on the surface of the transmission shaft 18, the driven bevel gear 21 is in meshed connection with the driving bevel gear 20, so that the driving bevel gear 20 is driven to rotate by controlling the second motor 19 to work, and the transmission shaft 18 is driven to rotate by the meshed connection of the driven bevel gear 21 and the driving bevel gear 20.
In a preferred embodiment, the lifting adjusting mechanism further comprises a first lifting adjusting screw 22, the upper and lower ends of the first lifting adjusting screw 22 are rotatably connected with the inner walls of the transmission case 8 and the first support frame 6 through bearing seats respectively, the surface of the first lifting adjusting screw 22 is engaged with the inside of the first hollow threaded slider 9, the surface of one end of the first lifting adjusting screw 22 extending into the transmission case 8 is fixedly sleeved with a first driven transmission bevel gear 23, the surface of the transmission shaft 18 is fixedly sleeved with a first driving transmission bevel gear 24 and a second driving transmission bevel gear 25 which are symmetrically distributed, the first driving transmission bevel gear 24 is engaged with the first driven transmission bevel gear 23, so that when the transmission shaft 18 rotates, the first driving transmission bevel gear 24 is driven to rotate, and the first driving transmission bevel gear 24 is engaged with the first driven transmission bevel gear 23, the first lifting adjusting screw 22 is driven to rotate, and the surface of the first lifting adjusting screw 22 is meshed with the inside of the first hollow threaded slide block 9 to drive the first hollow threaded slide block 9 to move up and down in the first support frame 6.
In a preferred embodiment, the lifting adjusting mechanism further comprises a second lifting adjusting screw 26, the upper end and the lower end of the second lifting adjusting screw 26 are rotatably connected with the inner walls of the transmission case 8 and the second supporting frame 7 through bearing seats, the surface of the second lifting adjusting screw 26 is engaged with the inside of the second hollow-thread slider 10, the second lifting adjusting screw 26 extends into one end surface of the transmission case 8 and is fixedly sleeved with a second driven bevel transmission gear 27, the second driven bevel transmission gear 27 is engaged with the second driving bevel transmission gear 25, so that when the transmission shaft 18 rotates, the second driven bevel transmission gear 27 is driven to rotate, the second lifting adjusting screw 26 is driven to rotate by the engagement of the second driven bevel transmission gear 27 and the second driving bevel transmission gear 25, the surface of the second lifting adjusting screw 26 is engaged with the inside of the second hollow-thread slider 10, drive second hollow thread slider 10 and reciprocate in second support frame 7 is inside, and then drive mounting panel 11 and infrared detector 12 and reciprocate, enlarge detection range, improve and detect the precision, the equipment maintenance of being convenient for, the equipment of being convenient for uses widely.
In a preferred embodiment, the bottom of first support frame 6 and second support frame 7 and the top fixed connection of hollow thread removal seat 17 to when hollow thread removal seat 17 when horizontal migration, drive first support frame 6 and second support frame 7 horizontal migration, and then improve detection efficiency, in time control weaving process, reduce textile enterprise manufacturing cost, extension equipment life.
The utility model discloses the theory of operation: when the infrared detection device for the textile machine is used, the horizontal adjusting screw rod 15 is driven to rotate by controlling the first motor 13, the inner part of the hollow thread moving seat 17 is meshed with the surface of the horizontal adjusting screw rod 15 to drive the hollow thread moving seat 17 to horizontally move on the surface of the guide rod 16 and the inner part of the horizontal adjusting box 5 to drive the first support frame 6 and the second support frame 7 to horizontally move, so that the detection efficiency is improved, the textile process is controlled in time, the production cost of textile enterprises is reduced, the service life of equipment is prolonged, an automatic control system is convenient to form, the workload of manual horizontal adjustment is reduced, the working intensity of manual horizontal adjustment is reduced, the energy consumption is reduced, the production cost of the enterprises is reduced, the driving bevel gear 20 is driven to rotate by controlling the second motor 19 to work, the driven bevel gear 21 is meshed with the driving bevel gear 20 to be connected, and, the first driving bevel gear 24 is driven to rotate, the first driving bevel gear 24 is meshed with the first driven bevel gear 23 to drive the first lifting adjusting screw 22 to rotate, the surface of the first lifting adjusting screw 22 is meshed with the inside of the first hollow threaded slider 9 to drive the first hollow threaded slider 9 to move up and down inside the first support frame 6, when the transmission shaft 18 rotates, the second driven bevel gear 27 is driven to rotate, the second driven bevel gear 27 is meshed with the second driving bevel gear 25 to drive the second lifting adjusting screw 26 to rotate, the surface of the second lifting adjusting screw 26 is meshed with the inside of the second hollow threaded slider 10 to drive the second hollow threaded slider 10 to move up and down inside the second support frame 7 to further drive the mounting plate 11 and the infrared detector 12 to move up and down, the detection range is enlarged, the detection precision is improved, the equipment maintenance is convenient, and the equipment popularization and use are convenient.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. 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 an infrared detection device for weaving machine, includes chassis (1), its characterized in that: the top fixedly connected with spindle frame (2) on chassis (1), the side of spindle frame (2) is rotated through the bearing frame and is connected with weaving raw material stick (3), the top fixed mounting on chassis (1) has numerical control loom (4), the top fixedly connected with level (5) on chassis (1), the inside of level (5) is provided with level (l) ing mechanism, the top slip of level (l) ing box (5) is provided with first support frame (6) and second support frame (7) of symmetric distribution, the bottom fixedly connected with transmission case (8) of first support frame (6) and second support frame (7), the inside of transmission case (8), first support frame (6) and second support frame (7) is provided with lift adjustment mechanism, the inside of first support frame (6) and second support frame (7) has first hollow screw slider (9) and second hollow screw thread slip through the guide rail respectively and is connected with first hollow screw thread slider (9) and second hollow screw thread slip The block (10), one side fixedly connected with mounting panel (11) that first hollow thread slider (9) and second hollow thread slider (10) are relative, the bottom fixedly connected with infrared detector (12) of mounting panel (11).
2. The infrared detection device for textile machines according to claim 1, characterized in that: horizontal adjustment mechanism includes first motor (13), the inner wall fixed connection of mount pad and horizontal adjustment case (5) is passed through to the bottom of first motor (13), the inside fixedly connected with baffler (14) of horizontal adjustment case (5), the inside of baffler (14) is connected with horizontal adjustment screw rod (15) through the bearing frame rotation, the output shaft fixed connection of shaft coupling and first motor (13) is passed through to the one end that horizontal adjustment screw rod (15) stretched out baffler (14).
3. The infrared detection device for the textile machine as claimed in claim 2, characterized in that: guide rods (16) which are symmetrically distributed are fixedly connected between the side face of the blocking plate (14) and the inner wall of the horizontal adjusting box (5), a hollow thread moving seat (17) is connected to the surface of each guide rod (16) in a sliding mode, and the inner portion of the hollow thread moving seat (17) is connected with the surface of the horizontal adjusting screw rod (15) in a meshed mode.
4. The infrared detection device for textile machines according to claim 3, characterized in that: the lifting adjusting mechanism comprises a transmission shaft (18), the two ends of the transmission shaft (18) are rotatably connected with the inner wall of the transmission case (8) through bearing seats, a second motor (19) is fixedly mounted on the surface of the transmission case (8) through a mounting seat, a driving bevel gear (20) arranged inside the transmission case (8) is fixedly sleeved on an output shaft of the second motor (19), a driven bevel gear (21) is sleeved on the surface of the transmission shaft (18), and the driven bevel gear (21) is meshed with the driving bevel gear (20).
5. The infrared detection device for textile machines according to claim 4, characterized in that: the lifting adjusting mechanism further comprises a first lifting adjusting screw rod (22), the upper end and the lower end of the first lifting adjusting screw rod (22) are respectively connected with the inner walls of the transmission box (8) and the first supporting frame (6) in a rotating mode through bearing seats, the surface of the first lifting adjusting screw rod (22) is connected with the inner portion of the first hollow threaded slider (9) in an engaged mode, a first driven transmission bevel gear (23) is fixedly sleeved on the surface of one end, extending into the transmission box (8), of the first lifting adjusting screw rod (22), a first driving transmission bevel gear (24) and a second driving transmission bevel gear (25) which are symmetrically distributed are fixedly sleeved on the surface of the transmission shaft (18), and the first driving transmission bevel gear (24) is connected with the first driven transmission bevel gear (23) in an engaged mode.
6. The infrared detection device for textile machines according to claim 5, characterized in that: the lifting adjusting mechanism further comprises a second lifting adjusting screw rod (26), the upper end and the lower end of the second lifting adjusting screw rod (26) are respectively connected with the inner walls of the transmission box (8) and the second supporting frame (7) in a rotating mode through a bearing seat, the surface of the second lifting adjusting screw rod (26) is connected with the inner portion of the second hollow threaded slider (10) in an engaged mode, a second driven transmission bevel gear (27) is fixedly connected to the surface of one end, extending into the transmission box (8), of the second lifting adjusting screw rod (26) in a sleeved mode, and the second driven transmission bevel gear (27) is connected with the second driving transmission bevel gear (25) in an engaged mode.
7. The infrared detection device for textile machines of claim 6, characterized in that: the bottoms of the first support frame (6) and the second support frame (7) are fixedly connected with the top of the hollow thread moving seat (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023182921.4U CN213579462U (en) | 2020-12-25 | 2020-12-25 | Infrared detection device for textile machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023182921.4U CN213579462U (en) | 2020-12-25 | 2020-12-25 | Infrared detection device for textile machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213579462U true CN213579462U (en) | 2021-06-29 |
Family
ID=76550055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023182921.4U Expired - Fee Related CN213579462U (en) | 2020-12-25 | 2020-12-25 | Infrared detection device for textile machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213579462U (en) |
-
2020
- 2020-12-25 CN CN202023182921.4U patent/CN213579462U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206843698U (en) | Weaving loom auxiliary lifting devices | |
| CN213579462U (en) | Infrared detection device for textile machine | |
| CN210683075U (en) | Upper disc seat lifting adjusting structure of textile machine | |
| CN213294279U (en) | Yarn tension adjusting device in textile processing process | |
| CN215289144U (en) | Take cleaning device's weaving equipment | |
| CN214572523U (en) | Rapier loom for manufacturing moisture-proof high-elastic case fabric | |
| CN214938190U (en) | Efficient loom for polyester blended fibers | |
| CN220685522U (en) | Knife rest for knife lifting induction device of shearing machine | |
| CN212175109U (en) | Supporting frame structure for textile machine | |
| CN220533815U (en) | Tensioning and adjusting device for sand skin of sanding machine | |
| CN218880424U (en) | Trimming device for processing gray cloth | |
| CN217781458U (en) | Dip dyeing device for producing dyed cloth | |
| CN219342441U (en) | Warping machine operation panel bearing adjustment mechanism | |
| CN219363928U (en) | Creel for warping machine | |
| CN220450408U (en) | Warp let-off winding structure of loom | |
| CN218932441U (en) | Textile frame with lifting function | |
| CN220503315U (en) | Yarn guide hook lifting device | |
| CN212894451U (en) | Arrangement mechanism adjusting device of novel glass fiber drawing machine | |
| CN214688506U (en) | Printing equipment for textile production | |
| CN215402326U (en) | Yarn tension adjusting device of hosiery machine | |
| CN219568200U (en) | Automatic loom knitting yarn adjusting device for producing modified nylon fabric | |
| CN220450409U (en) | Guide plate structure | |
| CN217026263U (en) | Weaving machine frame convenient to installation | |
| CN219951349U (en) | Warp beam for spinning | |
| CN220195336U (en) | Oil immersion equipment for textile machinery accessories |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20210629 Termination date: 20211225 |