CN220862448U - Corner bending device of steel filing cabinet - Google Patents
Corner bending device of steel filing cabinet Download PDFInfo
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- CN220862448U CN220862448U CN202322455498.8U CN202322455498U CN220862448U CN 220862448 U CN220862448 U CN 220862448U CN 202322455498 U CN202322455498 U CN 202322455498U CN 220862448 U CN220862448 U CN 220862448U
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- bending
- ejection
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 121
- 239000010959 steel Substances 0.000 title claims abstract description 121
- 238000005452 bending Methods 0.000 title claims abstract description 110
- 238000001179 sorption measurement Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000010030 laminating Methods 0.000 claims 2
- 238000007599 discharging Methods 0.000 abstract description 30
- 230000003111 delayed effect Effects 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 description 11
- 238000000429 assembly Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The utility model discloses a corner bending device of a steel file cabinet, and relates to the technical field of machining. The utility model comprises a feeding support frame, a movable support base and a discharging support frame, wherein a feeding conveyor belt is clamped on the inner side of the feeding support frame in a rotating way, a positioning plate is hung on the top of the feeding support frame, an upper bending assembly is arranged at one end of the positioning plate, the movable support base is arranged at one end of the feeding support frame, the discharging support frame is arranged on one side of the movable support base, the discharging conveyor belt is clamped on the inner side of the discharging support frame in a rotating way, telescopic cylinders are clamped on two sides of the top of the discharging support frame, and a limiting plate is arranged at one end of each telescopic cylinder. According to the utility model, the feeding support frame, the movable support base and the discharging support frame are arranged, so that the problems that feeding and discharging of the corner bending device are time-consuming and labor-consuming, the processing of a steel plate is delayed, and the device capable of automatically positioning is complex in general structure are solved.
Description
Technical Field
The utility model belongs to the technical field of machining, and particularly relates to a corner bending device of a steel file cabinet.
Background
The filing cabinet is a cabinet for placing files, data and the like, is generally used in offices, archives, data rooms, storage rooms or personal study rooms and the like, and is mainly divided into a plastic filing cabinet, a steel filing cabinet and a wooden filing cabinet according to the materials, wherein the steel filing cabinet is a cabinet which is finished by cold-rolled steel plates through a set of complete and precise manufacturing procedures, and is bent by a corner bending device in the steel plate processing process, so that the processing efficiency is improved, but the following defects still exist in the actual use:
1. The utility model discloses a bending device for file cabinet production, which is disclosed in the publication number CN215467234U, wherein the bending groove is formed in the top of the base, the supporting mechanism comprises a bracket, a sliding groove and a sliding plate, the top of the base is connected with the bracket, the sliding grooves are formed in the inner walls of the two sides of the bracket, the sliding plate is connected in the sliding grooves, the bending mechanism is arranged on the bracket, the sliding plate is connected with an adjusting mechanism, and the bending device is used for ensuring stable bending of a steel plate and is usually required to be provided with a positioning structure for positioning the steel plate, so that loading and unloading of the steel plate are difficult due to the positioning of the steel plate, accurate positioning is required, and time and labor are wasted in operation;
2. The corner bending device is in the process of bending, the steel plate can be bent through a hydraulic cylinder and the like after feeding and positioning, the next steel plate is processed after bending, the processing speed is delayed, and the device capable of automatically positioning is complex in general structure and greatly increases the production cost.
Disclosure of utility model
The utility model aims to provide a corner bending device of a steel file cabinet, which solves the problems that feeding and discharging of the corner bending device are time-consuming and labor-consuming, processing of a steel plate is delayed, production efficiency is reduced, a device capable of automatically positioning is complex in general structure, and production cost is greatly increased through a feeding support frame, a movable support base and a discharging support frame.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
The utility model relates to a corner bending device of a steel filing cabinet, which comprises a feeding support frame, a movable support base and a discharging support frame, wherein the inner side of the feeding support frame is rotatably clamped with a feeding conveyor belt, steel plates can be fed through the feeding conveyor belt and can be continuously fed, when one steel plate is bent, the other steel plate can limit one side of the bent steel plate, the stability of steel plate processing is ensured, the top of the feeding support frame is suspended with a positioning plate, the upper side of the steel plate can be positioned through the positioning plate, the stability in the processing process is further ensured, one end of the positioning plate is provided with an upper bending assembly, one end of the feeding support frame is provided with the movable support base, the upper side of the movable support base is provided with a lower bending assembly, a bending hydraulic cylinder of the movable support base can drive the lower bending assembly to move upwards, the steel plate is pressed into the upper bending assembly, manual bending is not needed, the automation degree of the bending device is improved, the movable support base can limit one side of the bent steel plate according to the positions of the upper bending assembly and the lower bending assembly, the use flexibility of the device is improved, the upper bending assembly is suspended on the top of the lower bending assembly, the upper bending assembly can position the upper side of the steel plate can be positioned on the upper side of the steel plate through the positioning plate, the movable support base, the upper side of the steel plate can be further positioned on the upper side of the steel plate through the positioning plate, the upper side is further ensured, the stability in the processing can be realized, the processing is realized, the high-speed can be realized, the other side of the flexible device is realized, the high-speed can be realized, the quality can be processed, and the high-speed, and the quality can be realized, and can be processed, and can be conveniently, and can be realized, and can and high speed, and can be realized. The bending device is convenient to bend different positions of the steel plate, and improves the flexibility of use of the bending device.
Further, one side of the feeding support frame is penetrated and clamped with a first rotating motor, the first rotating motor is in transmission connection with the feeding conveyor belt, two sides of the top of the feeding support frame are clamped with lifting cylinders, and the positioning plate is slidably clamped at the top of the lifting cylinders;
The feeding conveyor belt can be driven to rotate through the first rotating motor, the steel plate is further driven to move on the upper side of the feeding conveyor belt and to be fed, the adjacent steel plates can limit one side of the steel plate being processed, the processing stability is improved, the lifting cylinder can drive the positioning plate to move up and down, the steel plates with different thicknesses can be processed conveniently, the use flexibility of the bending device is improved, one side of the steel plate can be positioned up and down through the positioning plate and the feeding conveyor belt, and the processing stability is further guaranteed.
Further, one end of the positioning plate is rotationally clamped with a first connecting frame, one end of the positioning plate is penetrated and clamped with a second rotating motor, the second rotating motor is in transmission connection with the first connecting frame, the upper bending assembly is clamped and fixed on one side of the first connecting frame, one side of the upper bending assembly is clamped and fixed with an adsorption plate, and the upper bending assembly is positioned between the adsorption plate and the first connecting frame;
When carrying out the processing of bending of steel sheet, the second rotates the motor and drives and bend the subassembly and rotate downwards until parallel with the locating plate downside, and after the steel sheet processing is accomplished, drive through the second and bend the subassembly and upwards rotate, can avoid bending the subassembly and lead to the fact the influence to the ejection of compact of steel sheet, can carry out spacingly to steel sheet opposite side upper end when processing through the adsorption plate, guarantee the stability of processing.
Further, a bending hydraulic cylinder is clamped on the top surface of the movable support base, a second connecting frame is clamped on the top of the bending hydraulic cylinder in a sliding manner, and the lower bending assembly is clamped and fixed on the top of the second connecting frame;
The bending assembly is driven by the bending hydraulic cylinder to move up and down, the lower side of the steel plate can be extruded, the steel plate is bent through the upper bending assembly, the manual bending is not needed, the automation degree of the bending device is improved, the movable supporting base can be adjusted according to the positions of the upper bending assembly and the lower bending assembly, and the use flexibility of the bending device is improved.
Further, one side of the discharging support frame is penetrated and clamped with a third rotating motor, the third rotating motor is in transmission connection with the discharging conveyor belt, two sides of the top of the discharging support frame are clamped with electromagnets, the adsorption plate is attached to the upper sides of the electromagnets, and the movable support base is positioned between the feeding support frame and the discharging support frame;
The third rotation motor can drive the ejection of compact conveyer belt and rotate, further carries out the ejection of compact to the steel sheet that processing is good, improves machining efficiency, and the power of third rotation motor slightly is faster than the power of first rotation motor, guarantees that the steel sheet of ejection of compact can produce certain interval with the steel sheet of feeding, makes it adsorb fixedly the adsorption plate through leading to the electric magnet, guarantees the stability of bending the subassembly on processing.
Further, one end of the telescopic cylinder is slidably clamped with a telescopic pipe, the other end of the telescopic pipe is clamped with a third connecting frame, one side of the third connecting frame is penetrated and clamped with a fourth rotating motor, the limiting plate is rotationally clamped at one end of the third connecting frame, the limiting plate is in transmission connection with the fourth rotating motor, the limiting plate is attached to the upper side of the discharging conveyor belt, and the electromagnet is positioned between the movable supporting base and the limiting plate;
When carrying out the feeding of steel sheet, limiting plate can be spacing to steel sheet one side, guarantees the stability in the course of working, and when the steel sheet carries out the ejection of compact, the fourth rotates motor and drives the limiting plate and upwards rotate, releases the spacing to the steel sheet, guarantees that a plurality of steel sheets can carry out continuous processing, and location simple structure, crosses telescopic cylinder and can adjust the position of limiting plate, is convenient for bend the processing to the different positions of steel sheet, improves the flexibility that bending device used.
The utility model has the following beneficial effects:
1. According to the steel plate feeding and bending device, the problems that a bending device is used for stably bending a steel plate, a positioning structure is usually required to position the steel plate, the steel plate is difficult to load and unload due to the fact that the steel plate is required to be positioned, the steel plate is required to be positioned accurately, time and labor are wasted in operation are solved, when the steel plate is fed, a feeding conveyor belt drives the steel plate to move until one side of the steel plate is attached to a limiting plate, the other side of the steel plate to be processed is limited through the steel plate which is adjacent to the feeding conveyor belt, after the processing is completed, a second rotating motor drives an upper bending assembly to move upwards, and the limiting plate moves upwards to release the limiting of the steel plate.
2. According to the utility model, through arranging the feeding support frame and the discharging support frame, the problems that in the bending process of the corner bending device, the steel plate can be bent through the hydraulic cylinder and the like after being fed and positioned, and the next steel plate is processed after being bent, the processing speed is delayed, the automatic positioning device is complex in general structure, the production cost is greatly increased are solved, a plurality of steel plates can be continuously put into the upper side of the feeding conveyor belt by a worker, the plurality of steel plates are fed through the rotation of the feeding conveyor belt, and after the steel plate is processed, the processed steel plate can be extruded through the adjacent steel plates and the feeding conveyor belt and the discharging conveyor belt, so that the bending device can continuously bend the steel plate, and the production efficiency is improved.
Drawings
FIG. 1 is a structural effect diagram of the present utility model;
FIG. 2 is a block diagram of a feed support frame of the present utility model;
FIG. 3 is a block diagram of a mobile support base of the present utility model;
FIG. 4 is a block diagram of the discharge support frame of the present utility model;
Fig. 5 is a structural view of the limiting plate and the telescopic cylinder of the present utility model.
Reference numerals:
1. A feeding support frame; 101. a positioning plate; 102. an upper bending assembly; 103. a feed conveyor; 104. a first rotating motor; 105. a lifting cylinder; 106. a second rotating motor; 107. a first connection frame; 108. an adsorption plate; 2. a movable support base; 201. a bending hydraulic cylinder; 202. a second connecting frame; 203. a lower bending assembly; 3. a discharging support frame; 301. a telescopic cylinder; 302. a limiting plate; 303. a third rotary motor; 304. a discharge conveyor belt; 305. an electromagnet; 306. a telescopic tube; 307. a third connecting frame; 308. and a fourth rotating motor.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1-5, the utility model relates to a corner bending device for a steel filing cabinet, which comprises a feeding support frame 1, a movable support base 2 and a discharging support frame 3, wherein a feeding conveyor belt 103 is clamped on the inner side of the feeding support frame 1 in a rotating way, a plurality of steel plates are fed through the feeding conveyor belt 103, when one steel plate is bent, the other steel plate limits one side of the bent steel plate, after the steel plate is processed, the processed steel plate is discharged through the rotation of the feeding conveyor belt 103 and the extrusion of the other steel plate, a positioning plate 101 is hung on the top of the feeding support frame 1, the upper side of the steel plate is positioned through the positioning plate 101, an upper bending assembly 102 is arranged at one end of the positioning plate 101, the movable support base 2 is arranged at one end of the feeding support frame 1, a lower bending assembly 203 is arranged on the upper side of the movable support base 2, the positions of the movable supporting base 2 are adjusted according to the sizes of the upper bending component 102 and the lower bending component 203 which are required to be installed, the lower bending component 203 is driven to move upwards by a bending hydraulic cylinder 201 of the movable supporting base 2, a steel plate is pressed into the upper bending component 102, the upper bending component 102 is suspended at the top of the lower bending component 203, one side of the movable supporting base 2 is provided with a discharging supporting frame 3, the inner side of the discharging supporting frame 3 is rotationally clamped with a discharging conveyor belt 304, the processed steel plate is driven to be discharged by the rotation of the discharging conveyor belt 304, the other steel plate is convenient to be rapidly fed, the processing efficiency is greatly improved, two sides of the top of the discharging supporting frame 3 are clamped with telescopic cylinders 301, one end of each telescopic cylinder 301 is provided with a limiting plate 302, the telescopic cylinders 301 are controlled to drive the limiting plate 302 to move to a proper position according to the processing position of the steel plate, and one side of the steel plate is limited by the limiting plate 302 when the steel plate is processed.
As shown in fig. 1-2, one side of the feeding support frame 1 is connected with a first rotating motor 104 in a penetrating and clamping manner, the first rotating motor 104 is connected with a feeding conveyor belt 103 in a transmission manner, two sides of the top of the feeding support frame 1 are connected with a lifting cylinder 105 in a clamping manner, a positioning plate 101 is connected with the top of the lifting cylinder 105 in a sliding manner in a clamping manner, one end of the positioning plate 101 is connected with a first connecting frame 107 in a rotating manner, one end of the positioning plate 101 is connected with a second rotating motor 106 in a penetrating and clamping manner, the second rotating motor 106 is connected with the first connecting frame 107 in a transmission manner, an upper bending assembly 102 is connected with one side of the first connecting frame 107 in a clamping manner, an adsorption plate 108 is fixed on one side of the upper bending assembly 102 in a clamping manner, and the upper bending assembly 102 is positioned between the adsorption plate 108 and the first connecting frame 107;
The corresponding upper bending assembly 102 is clamped and fixed on one side of the first connecting frame 107 according to the shape of the steel plate to be bent, the positioning plate 101 is driven to move to a proper height through the lifting cylinder 105 according to the thickness of the steel plate, the second rotating motor 106 drives the upper bending assembly 102 to rotate downwards until being parallel to the bottom side of the positioning plate 101 when the steel plate is bent, the positioning plate 101 positions one end of the upper side of the steel plate, the adsorption plate 108 positions the other end of the upper side of the steel plate, the first rotating motor 104 drives the feeding conveyor belt 103 to rotate, a plurality of steel plates are further driven to move above the feeding conveyor belt 103 and feed, the adjacent steel plates can limit one side of the steel plate being processed, and after the steel plate is processed, the second rotating motor 106 drives the upper bending assembly 102 to rotate upwards, so that the influence of the upper bending assembly 102 on the discharging of the steel plate is avoided.
As shown in fig. 1 and 3, a bending hydraulic cylinder 201 is clamped on the top surface of the movable support base 2, a second connecting frame 202 is clamped on the top of the bending hydraulic cylinder 201 in a sliding manner, and a lower bending assembly 203 is clamped and fixed on the top of the second connecting frame 202;
The corresponding lower bending assembly 203 is clamped and fixed on the upper side of the second connecting frame 202 according to the shape of the steel plate to be bent, the position of the movable supporting base 2 is adjusted, the lower bending assembly 203 is driven to be upwards by the bending hydraulic cylinder 201 during processing, the lower side of the steel plate is extruded, and the steel plate is bent by the upper bending assembly 102.
As shown in fig. 1, 4 and 5, one side of the discharging support frame 3 is connected with a third rotating motor 303 in a penetrating and clamping manner, the third rotating motor 303 is connected with a discharging conveyor belt 304 in a transmission manner, two sides of the top of the discharging support frame 3 are connected with an electromagnet 305 in a clamping manner, an adsorption plate 108 is attached to the upper side of the electromagnet 305, a movable support base 2 is positioned between the feeding support frame 1 and the discharging support frame 3, one end of a telescopic cylinder 301 is connected with a telescopic pipe 306 in a sliding and clamping manner, the other end of the telescopic pipe 306 is connected with a third connecting frame 307 in a clamping manner, one side of the third connecting frame 307 is connected with a fourth rotating motor 308 in a penetrating and clamping manner, a limiting plate 302 is connected with one end of the third connecting frame 307 in a transmission manner, the limiting plate 302 is attached to the upper side of the discharging conveyor belt 304, and the electromagnet 305 is positioned between the movable support base 2 and the limiting plate 302;
According to the position of steel sheet processing, control flexible cylinder 301 stretches out and draws back flexible pipe 306, moves limiting plate 302 to suitable position, and when processing, limiting plate 302 can be spacing to steel sheet one side, makes it adsorb fixedly to adsorption plate 108 through being circular telegram to electro-magnet 305, after buckling, fourth rotation motor 308 drives limiting plate 302 and upwards rotates, releases the spacing to the steel sheet, and third rotation motor 303 drives ejection of compact conveyer belt 304 and rotates, further carries out the ejection of compact to the steel sheet that processes.
The specific working principle of the utility model is as follows: before processing of steel plates, corresponding lower bending assemblies 203 are fixed on the upper side of the second connecting frame 202 in a clamping manner according to the shape of the steel plates to be bent, the positions of the movable supporting bases 2 are adjusted, corresponding upper bending assemblies 102 are fixed on one side of the first connecting frame 107 in a clamping manner according to the shape of the steel plates to be bent, the positioning plates 101 are driven to move to a proper height through the lifting cylinders 105 according to the thickness of the steel plates, the telescopic cylinders 301 are controlled to stretch out and draw back the telescopic pipes 306 according to the positions of the steel plates to be processed, the limiting plates 302 are moved to a proper position, the first rotating motor 104 is started to drive the feeding conveyor belt 103 to rotate, the steel plates are sequentially placed on the upper side of the feeding conveyor belt 103 and are fed, when one side of each steel plate moves and touches the limiting plates 302, the second rotating motor 106 drives the upper bending assemblies 102 to rotate downwards until the lower side of the corresponding positioning plates 101 is parallel, the positioning plates 101 position one ends of the upper sides of the steel plates, the adsorption plates 108 position the other ends of the upper sides of the steel plates, the lower bending assemblies 203 are driven to move upwards, the lower sides of the steel plates are extruded, the steel plates are processed through the upper assemblies 102, the upper assemblies 106 are driven to rotate, the upper bending plates, the upper bending assemblies 106 are driven to move the upper bending assemblies, the upper bending assemblies 102 to rotate, the upper bending assemblies 102 are driven to rotate, the upper bending plates, the upper bending assemblies are driven to rotate, the upper bending motors 102 are driven to rotate, the steel plates to rotate, and the upper plates 302 are driven to rotate, and the upper plates are further to rotate, and the adjacent steel plates are driven to rotate, and are further to rotate, and are driven to rotate, and are further to rotate and, and are driven to rotate and are moved.
The foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present utility model.
Claims (6)
1. The utility model provides a corner bending device of steel filing cabinet, includes feeding support frame (1), removes support base (2) and ejection of compact support frame (3), its characterized in that: the feeding support frame (1) inboard rotates the joint and has feeding conveyer belt (103), feeding support frame (1) top is hung there is locating plate (101), locating plate (101) one end is provided with and bends subassembly (102), feeding support frame (1) one end is provided with and removes support base (2), it is provided with down to bend subassembly (203) to remove support base (2) upside, it hangs in bending subassembly (203) top down to go up to bend subassembly (102), it is provided with ejection of compact support frame (3) to remove support base (2) one side, ejection of compact support frame (3) inboard rotates the joint and has ejection of compact conveyer belt (304), ejection of compact support frame (3) top both sides joint has telescopic cylinder (301), every telescopic cylinder (301) one end all is provided with a limiting plate (302).
2. The corner bending device for a steel filing cabinet as claimed in claim 1, wherein: the feeding support frame (1) one side runs through the joint has first rotation motor (104), first rotation motor (104) and feeding conveyer belt (103) transmission are connected, feeding support frame (1) top both sides joint has lift cylinder (105), locating plate (101) slip joint is in lift cylinder (105) top.
3. The corner bending device for a steel filing cabinet as claimed in claim 1, wherein: the locating plate (101) one end rotates the joint and has first link (107), locating plate (101) one end runs through the joint and has second rotation motor (106), second rotation motor (106) and first link (107) transmission are connected, go up bending subassembly (102) joint and be fixed in first link (107) one side, upward bending subassembly (102) one side joint is fixed with adsorption plate (108), upward bending subassembly (102) are located between adsorption plate (108) and first link (107).
4. The corner bending device for a steel filing cabinet as claimed in claim 1, wherein: the movable support base (2) is characterized in that a bending hydraulic cylinder (201) is clamped on the top surface of the movable support base, a second connecting frame (202) is clamped on the top of the bending hydraulic cylinder (201) in a sliding mode, and the lower bending assembly (203) is clamped and fixed on the top of the second connecting frame (202).
5. A steel filing cabinet corner bending device as claimed in claim 3, wherein: the utility model discloses a feeding support frame, including ejection of compact support frame (3), ejection of compact support frame (3) one side runs through the joint has third rotation motor (303), third rotation motor (303) and ejection of compact conveyer belt (304) transmission are connected, ejection of compact support frame (3) top both sides joint has electro-magnet (305), adsorption plate (108) laminating in electro-magnet (305) upside, remove support base (2) and be located between feeding support frame (1) and ejection of compact support frame (3).
6. The corner bending device for a steel filing cabinet as claimed in claim 5, wherein: the telescopic cylinder (301) one end slip joint has flexible pipe (306), flexible pipe (306) other end joint has third link (307), the joint has fourth rotation motor (308) to run through in third link (307) one side, limiting plate (302) rotate joint in third link (307) one end, limiting plate (302) and fourth rotation motor (308) transmission are connected, limiting plate (302) laminating is in ejection of compact conveyer belt (304) upside, electro-magnet (305) are located between removal support base (2) and limiting plate (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322455498.8U CN220862448U (en) | 2023-09-08 | 2023-09-08 | Corner bending device of steel filing cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322455498.8U CN220862448U (en) | 2023-09-08 | 2023-09-08 | Corner bending device of steel filing cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220862448U true CN220862448U (en) | 2024-04-30 |
Family
ID=90808737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322455498.8U Active CN220862448U (en) | 2023-09-08 | 2023-09-08 | Corner bending device of steel filing cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220862448U (en) |
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2023
- 2023-09-08 CN CN202322455498.8U patent/CN220862448U/en active Active
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