CN214817251U - Trimming device for automobile part machining - Google Patents
Trimming device for automobile part machining Download PDFInfo
- Publication number
- CN214817251U CN214817251U CN202120860692.2U CN202120860692U CN214817251U CN 214817251 U CN214817251 U CN 214817251U CN 202120860692 U CN202120860692 U CN 202120860692U CN 214817251 U CN214817251 U CN 214817251U
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- limiting
- width
- plate
- groove
- sliding
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- 238000009966 trimming Methods 0.000 title claims abstract description 19
- 238000003754 machining Methods 0.000 title description 2
- 238000005498 polishing Methods 0.000 claims abstract description 69
- 238000012545 processing Methods 0.000 claims abstract description 17
- 238000003780 insertion Methods 0.000 claims description 42
- 230000037431 insertion Effects 0.000 claims description 42
- 238000003825 pressing Methods 0.000 claims description 33
- 210000003205 muscle Anatomy 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 206010049565 Muscle fatigue Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The utility model discloses a trimming device is used in automobile parts processing, including slip grinding device, high stop device and width stop device. The utility model belongs to the technical field of automobile parts processing deburring device, specifically indicate an automobile parts is deburring device for processing, according to the distance between two sets of clamp plates about the thickness adjustment of frame on the automobile parts, the order the utility model discloses can adapt to the automobile frame of different thickness, adjust the distance between the two sets of spacing splint of horizontal direction according to the width of automobile frame, the sliding structure of polishing of upper end can make grinding device lateral sliding, the position of difference on the automobile frame spare part of polishing can be with grinding device control at same height, can not influence the precision of polishing, does not need operating personnel to stretch tightly muscle and goes the equipment of polishing, has effectively solved current automobile parts on the existing market and has polished the deburring device inefficiency, and self structure is complicated, maintains comparatively inconvenient problem.
Description
Technical Field
The utility model belongs to the technical field of the automobile parts processing deburring device, specifically indicate a deburring device is used in automobile parts processing.
Background
In the production process of an automobile, a plurality of parts need to be processed, wherein trimming needs to be carried out in the processing process of the parts, and the plate trimming means that: and punching and shearing off the added process supplement part around the punched part and the added process supplement part inside the punched part to ensure the deep drawing forming. The frame of car is done main atress part as the car, must guarantee that no unedged protrusion influences the car equipment on the car frame, and conventional grinding device needs the manual work to hand, is difficult to control the dynamics of polishing, and raises the arm for a long time and polish, can make operating personnel's muscle fatigue more easily, is unfavorable for the realization of fine operation such as meticulous deburring.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming prior art's defect, the utility model provides an automobile parts trimming device for processing, according to the automobile parts on the frame the thickness adjust about the distance between two sets of clamping plates, the order the utility model discloses can adapt to the automobile frame of different thickness, adjust the distance between the two sets of spacing splint of horizontal direction according to the width of automobile frame, the sliding construction of polishing of upper end can make grinding device lateral sliding, the position of polishing on the automobile frame spare part is different, can be with grinding device control at same height, can not influence the precision of polishing, do not need operating personnel to tighten muscle and go the equipment of polishing, effectively solved current automobile parts polishing trimming device inefficiency on the existing market, and self structure is complicated, maintains comparatively inconvenient problem.
The utility model adopts the following technical scheme: the utility model relates to an automobile parts processing is with deburring device, including slip grinding device, height stop device and width stop device, height stop device locates on the width stop device, slip grinding device locates on the width stop device; the height limiting device comprises a height limiting roller, a roller connecting bracket, a roller limiting spring, a roller bracket clamping groove, a height limiting plate, a height limiting sliding groove, a height limiting clamping groove, an upper end fixing limiting inserting plate, an upper end inserting plate limiting clamping groove, a height limiting inserting bracket and a height limiting inserting spring, the roller bracket clamping groove is arranged on the width limiting device, the roller limiting spring is arranged on the roller bracket clamping groove, the roller connecting bracket is arranged on the roller limiting spring, the roller connecting bracket is clamped and slidably arranged on the roller bracket clamping groove, the height limiting roller is clamped and rotatably arranged on the roller connecting bracket, the height limiting sliding groove is arranged on the width limiting device, the height limiting plate is clamped and slidably arranged on the height limiting sliding groove, the height limiting clamping groove is arranged on the height limiting plate, the fixed spacing picture peg of upper end is located on the width stop device, the spacing block groove of upper end picture peg is located on the fixed spacing picture peg of upper end, high spacing insert the support block and slide and locate on the spacing block groove of upper end picture peg, high spacing insert the support block and slide and locate on the spacing block groove of height, the one end of high spacing insert the spring is located on the high spacing insert the support, the other end of high spacing insert the spring is located on the fixed spacing picture peg of upper end.
Further, the sliding and polishing device comprises a sliding and polishing pressing plate, a horizontal sliding groove, a horizontal sliding support, a horizontal sliding and pressing spring, a sliding spring clamping block, a sliding spring clamping groove, a pressing plate arc-shaped connecting plate, an arc-shaped plate clamping block, an arc-shaped plate clamping groove, an arc-shaped plate limiting spring, a polishing telescopic cylinder, a polishing rotating motor and a polishing grinding wheel, wherein the arc-shaped plate clamping groove is arranged on the width limiting device, the arc-shaped plate clamping block is clamped and slidably arranged on the arc-shaped plate clamping groove, the pressing plate arc-shaped connecting plate is arranged on the arc-shaped plate clamping block, the arc-shaped plate limiting spring is arranged on the arc-shaped plate clamping groove, the arc-shaped plate limiting spring is connected with the arc-shaped plate clamping block, the sliding and polishing pressing plate is arranged on the pressing plate arc-shaped connecting plate, the horizontal sliding groove is arranged on the sliding and polishing pressing plate, and the horizontal sliding support is clamped and slidably arranged on the horizontal sliding groove, the horizontal sliding pressing spring is arranged on the horizontal sliding support, the sliding spring clamping block is arranged on the horizontal sliding pressing spring, the sliding spring clamping groove is formed in the sliding polishing pressing plate, the sliding spring clamping block is arranged on the sliding spring clamping groove in a clamping and sliding mode, the polishing telescopic cylinder is arranged on the horizontal sliding support, the polishing rotary motor is arranged on the output end of the polishing telescopic cylinder, and the trimming grinding wheel is arranged on the output end of the polishing rotary motor.
Further, the width limiting device comprises a width upper end limiting plate, a width lower end limiting plate, a width limiting groove, a width limiting bracket, a width limiting spring, a width limiting inserting bracket, a width bracket inserting groove and a width groove upper inserting groove, the width lower end limit plate is arranged on the height limit plate, the width upper end limit plate is connected with the height limit sliding groove, the width limiting groove is respectively arranged on the width upper end limiting plate and the width lower end limiting plate, the width limiting bracket is clamped and glidingly arranged on the width limiting groove, the width limiting spring is arranged on the width limiting bracket, the width bracket insertion groove is arranged on the width limiting bracket, the upper insertion groove of the width groove is formed in the lower width limiting plate, the width limiting insertion support is clamped and slidably arranged on the insertion groove of the width support, and the width limiting insertion support is clamped and slidably arranged on the upper insertion groove of the width groove.
Further, the arc plate clamping groove is formed in the width upper end limiting plate, the height limiting sliding groove is formed in the width upper end limiting plate, and the upper end fixing limiting inserting plate is arranged on the width upper end limiting plate.
Further, the width upper end limiting plate is equipped with two sets ofly, the width lower extreme limiting plate is equipped with two sets ofly, high spacing gyro wheel is equipped with eight sets ofly.
Adopt above-mentioned structure the utility model discloses the beneficial effect who gains as follows: the utility model provides an automobile parts trimming device for processing, according to the distance between two sets of clamp plates about the thickness adjustment of frame on the automobile parts, the order the utility model discloses can adapt to the automobile frame of different thickness, adjust the distance between the two sets of spacing splint of horizontal direction according to the width of automobile frame, the sliding construction of polishing of upper end can make grinding device lateral sliding, the position of polishing on the automobile frame parts is different, can be with grinding device control at same height, can not influence the precision of polishing, do not need operating personnel to tighten muscle and remove the equipment of polishing, effectively solved current automobile parts grinding device inefficiency on the existing market, and self structure is complicated, maintain comparatively inconvenient problem.
Drawings
Fig. 1 is a left side sectional view of the trimming device for processing automobile parts of the present invention;
fig. 2 is a front sectional view of the trimming device for processing automobile parts of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 1;
FIG. 4 is a partial enlarged view of portion B of FIG. 1;
FIG. 5 is an enlarged view of a portion C of FIG. 1;
FIG. 6 is an enlarged view of a portion D of FIG. 1;
fig. 7 is a partially enlarged view of a portion E in fig. 2.
The device comprises a sliding polishing device 1, a sliding polishing device 2, a height limiting device 3, a width limiting device 4, a height limiting roller 5, a roller connecting support 6, a roller limiting spring 7, a roller support clamping groove 8, a height limiting plate 9, a height limiting sliding groove 10, a height limiting clamping groove 11, an upper end fixing limiting insertion plate 12, an upper end insertion plate limiting clamping groove 13, a height limiting insertion support 14, a height limiting insertion spring 15, a sliding polishing pressing plate 16, a horizontal sliding groove 17, a horizontal sliding support 18, a horizontal sliding pressing spring 19, a sliding spring clamping block 20, a sliding spring clamping groove 21, a pressing plate arc connecting plate 22, an arc plate clamping block 23, an arc plate clamping groove 24, an arc plate limiting spring 25, a polishing telescopic cylinder 26, a polishing rotating motor 27, a polishing telescopic cylinder 25, a polishing rotating motor 26, a polishing rotating motor 27, a polishing rotating motor, a polishing roller connecting plate 2, a polishing roller connecting plate 3, a roller limiting spring, a polishing plate, A trimming grinding wheel 28, a width upper end limit plate 29, a width lower end limit plate 30, a width limit groove 31, a width limit bracket 32, a width limit spring 33, a width limit inserting bracket 34, a width bracket inserting groove 35 and a width groove upper inserting groove.
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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.
As shown in fig. 1-7, the trimming device for processing automobile parts of the present invention comprises a sliding polishing device 1, a height limiting device 2 and a width limiting device 3, wherein the height limiting device 2 is disposed on the width limiting device 3, and the sliding polishing device 1 is disposed on the width limiting device 3; the height limiting device 2 comprises a height limiting roller 4, a roller connecting bracket 5, a roller limiting spring 6, a roller bracket clamping groove 7, a height limiting plate 8, a height limiting sliding groove 9, a height limiting clamping groove 10, an upper end fixing limiting inserting plate 11, an upper end inserting plate limiting clamping groove 12, a height limiting inserting bracket 13 and a height limiting inserting spring 14, the roller bracket clamping groove 7 is arranged on the width limiting device 3, the roller limiting spring 6 is arranged on the roller bracket clamping groove 7, the roller connecting bracket 5 is arranged on the roller limiting spring 6, the roller connecting bracket 5 is clamped and slidably arranged on the roller bracket clamping groove 7, the height limiting roller 4 is clamped and rotatably arranged on the roller connecting bracket 5, the height limiting sliding groove 9 is arranged on the width limiting device 3, and the height limiting plate 8 is clamped and slidably arranged on the height limiting sliding groove 9, the height-limiting clamping groove 10 is formed in the height-limiting plate 8, the upper-end fixed limiting insertion plate 11 is arranged on the width limiting device 3, the upper-end insertion plate limiting clamping groove 12 is formed in the upper-end fixed limiting insertion plate 11, the height-limiting insertion support 13 is slidably arranged on the upper-end insertion plate limiting clamping groove 12, the height-limiting insertion support 13 is slidably arranged on the height-limiting clamping groove 10, one end of the height-limiting insertion spring 14 is arranged on the height-limiting insertion support 13, and the other end of the height-limiting insertion spring 14 is arranged on the upper-end fixed limiting insertion plate 11.
The sliding polishing device 1 comprises a sliding polishing pressing plate 15, a horizontal sliding groove 16, a horizontal sliding support 17, a horizontal sliding pressing spring 18, a sliding spring clamping block 19, a sliding spring clamping groove 20, a pressing plate arc-shaped connecting plate 21, an arc-shaped plate clamping block 22, an arc-shaped plate clamping groove 23, an arc-shaped plate limiting spring 24, a polishing telescopic cylinder 25, a polishing rotating motor 26 and an edge polishing grinding wheel 27, wherein the arc-shaped plate clamping groove 23 is arranged on a width limiting device 3, the arc-shaped plate clamping block 22 is clamped and slidably arranged on the arc-shaped plate clamping groove 23, the pressing plate arc-shaped connecting plate 21 is arranged on the arc-shaped plate clamping block 22, the arc-shaped plate limiting spring 24 is arranged on the arc-shaped plate clamping groove 23, the arc-shaped plate limiting spring 24 is connected with the arc-shaped plate clamping block 22, the sliding polishing pressing plate 15 is arranged on the pressing plate arc-shaped connecting plate 21, the horizontal sliding groove 16 is arranged on the sliding polishing pressing plate 15, the horizontal sliding support 17 is arranged on the horizontal sliding groove 16 in a clamping and sliding mode, the horizontal sliding pressing spring 18 is arranged on the horizontal sliding support 17, the sliding spring clamping block 19 is arranged on the horizontal sliding pressing spring 18, the sliding spring clamping groove 20 is arranged on the sliding polishing pressing plate 15, the sliding spring clamping block 19 is arranged on the sliding spring clamping groove 20 in a clamping and sliding mode, the polishing telescopic cylinder 25 is arranged on the horizontal sliding support 17, the polishing rotary motor 26 is arranged on the output end of the polishing telescopic cylinder 25, and the trimming grinding wheel 27 is arranged on the output end of the polishing rotary motor 26.
The width limiting device 3 comprises a width upper end limiting plate 28, a width lower end limiting plate 29, a width limiting groove 30, a width limiting bracket 31, a width limiting spring 32, a width limiting insertion bracket 33, a width bracket insertion groove 34 and a width groove upper insertion groove 35, wherein the width lower end limiting plate 29 is arranged on the height limiting plate 8, the width upper end limiting plate 28 is connected with the height limiting sliding groove 9, the width limiting groove 30 is respectively arranged on the width upper end limiting plate 28 and the width lower end limiting plate 29, the width limiting bracket 31 is clamped and slidably arranged on the width limiting groove 30, the width limiting spring 32 is arranged on the width limiting bracket 31, the width bracket insertion groove 34 is arranged on the width limiting bracket 31, the width groove upper insertion groove 35 is arranged on the width lower end limiting plate 29, the width limiting insertion bracket 33 is clamped and slidably arranged on the width bracket insertion groove 34, the width limiting insertion bracket 33 is slidably engaged with the width groove upper insertion groove 35.
The arc-shaped plate clamping groove 23 is formed in the width upper end limiting plate 28, the height limiting sliding groove 9 is formed in the width upper end limiting plate 28, and the upper end fixing limiting inserting plate 11 is formed in the width upper end limiting plate 28.
The width upper end limiting plates 28 are provided with two groups, the width lower end limiting plates 29 are provided with two groups, and the height limiting rollers 4 are provided with eight groups.
When the automobile component frame is used, a user inserts the frame of an automobile component along a gap between the upper width limiting plate 28 and the lower width limiting plate 29, trims a large number of heights to be polished according to requirements, slides the height limiting plate 8 along the height limiting sliding groove 9, after reaching a proper height, inserts the height limiting insertion bracket 13 into the height limiting insertion groove 10 along the upper end inserting plate limiting insertion groove 12, deforms the height limiting insertion spring 14 to play a role in fixing, in order to adapt to the width of the automobile frame, slides the width limiting bracket 31 along the width limiting groove 30, deforms the width limiting spring 32 to play a role in pressurizing, inserts the width limiting insertion bracket 33 into the width bracket insertion groove 34 along the width groove upper insertion groove 35, fixes the upper width limiting plate 28 and the lower width limiting plate 29 relative to the automobile frame, and then controls the polishing telescopic cylinder 25 to extend, the motor 26 rotates in the rotation of polishing, and the deburring dull polish wheel 27 is polished the surface of frame, for the better frame surface of polishing that can be, the user makes horizontal sliding bracket 17 slide along horizontal sliding groove 16, and slip spring block 19 slides along slip spring block 20, and deburring dull polish wheel 27 horizontal migration this moment, the user presses down horizontal sliding bracket 17 with the hand, and the deburring dull polish wheel 27 is pressed close to the frame of automobile parts and is polished the deburring, above just the utility model discloses holistic work flow, repeat this step when using next time can.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (5)
1. The utility model provides an automobile parts processing is with deburring device which characterized in that: the polishing device comprises a sliding polishing device, a height limiting device and a width limiting device, wherein the height limiting device is arranged on the width limiting device; the height limiting device comprises a height limiting roller, a roller connecting bracket, a roller limiting spring, a roller bracket clamping groove, a height limiting plate, a height limiting sliding groove, a height limiting clamping groove, an upper end fixing limiting inserting plate, an upper end inserting plate limiting clamping groove, a height limiting inserting bracket and a height limiting inserting spring, the roller bracket clamping groove is arranged on the width limiting device, the roller limiting spring is arranged on the roller bracket clamping groove, the roller connecting bracket is arranged on the roller limiting spring, the roller connecting bracket is clamped and slidably arranged on the roller bracket clamping groove, the height limiting roller is clamped and rotatably arranged on the roller connecting bracket, the height limiting sliding groove is arranged on the width limiting device, the height limiting plate is clamped and slidably arranged on the height limiting sliding groove, the height limiting clamping groove is arranged on the height limiting plate, the fixed spacing picture peg of upper end is located on the width stop device, the spacing block groove of upper end picture peg is located on the fixed spacing picture peg of upper end, high spacing insert the support block and slide and locate on the spacing block groove of upper end picture peg, high spacing insert the support block and slide and locate on the spacing block groove of height, the one end of high spacing insert the spring is located on the high spacing insert the support, the other end of high spacing insert the spring is located on the fixed spacing picture peg of upper end.
2. The trimming device for automobile parts processing according to claim 1, wherein: the sliding polishing device comprises a sliding polishing pressing plate, a horizontal sliding groove, a horizontal sliding support, a horizontal sliding pressing spring, a sliding spring clamping block, a sliding spring clamping groove, a pressing plate arc-shaped connecting plate, an arc-shaped plate clamping block, an arc-shaped plate clamping groove, an arc-shaped plate limiting spring, a polishing telescopic cylinder, a polishing rotating motor and an edge polishing grinding wheel, wherein the arc-shaped plate clamping groove is arranged on the width limiting device, the arc-shaped plate clamping block is clamped and slidably arranged on the arc-shaped plate clamping groove, the pressing plate arc-shaped connecting plate is arranged on the arc-shaped plate clamping block, the arc-shaped plate limiting spring is arranged on the arc-shaped plate clamping groove, the arc-shaped plate limiting spring is connected with the arc-shaped plate clamping block, the sliding polishing pressing plate is arranged on the pressing plate arc-shaped connecting plate, the horizontal sliding groove is arranged on the sliding polishing pressing plate, and the horizontal sliding support is clamped and slidably arranged on the horizontal sliding groove, the horizontal sliding pressing spring is arranged on the horizontal sliding support, the sliding spring clamping block is arranged on the horizontal sliding pressing spring, the sliding spring clamping groove is formed in the sliding polishing pressing plate, the sliding spring clamping block is arranged on the sliding spring clamping groove in a clamping and sliding mode, the polishing telescopic cylinder is arranged on the horizontal sliding support, the polishing rotary motor is arranged on the output end of the polishing telescopic cylinder, and the trimming grinding wheel is arranged on the output end of the polishing rotary motor.
3. The trimming device for automobile parts processing according to claim 2, wherein: the width limiting device comprises a width upper end limiting plate, a width lower end limiting plate, a width limiting groove, a width limiting bracket, a width limiting spring, a width limiting inserting bracket, a width bracket inserting groove and a width groove upper inserting groove, the width lower end limit plate is arranged on the height limit plate, the width upper end limit plate is connected with the height limit sliding groove, the width limiting groove is respectively arranged on the width upper end limiting plate and the width lower end limiting plate, the width limiting bracket is clamped and glidingly arranged on the width limiting groove, the width limiting spring is arranged on the width limiting bracket, the width bracket insertion groove is arranged on the width limiting bracket, the upper insertion groove of the width groove is formed in the lower width limiting plate, the width limiting insertion support is clamped and slidably arranged on the insertion groove of the width support, and the width limiting insertion support is clamped and slidably arranged on the upper insertion groove of the width groove.
4. The trimming device for automobile parts processing according to claim 3, wherein: the arc plate clamping groove is formed in the width upper end limiting plate, the height limiting sliding groove is formed in the width upper end limiting plate, and the upper end fixing limiting inserting plate is arranged on the width upper end limiting plate.
5. The trimming device for automobile parts processing according to claim 4, wherein: the width upper end limiting plate is provided with two groups, the width lower end limiting plate is provided with two groups, and the height limiting idler wheels are provided with eight groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120860692.2U CN214817251U (en) | 2021-04-25 | 2021-04-25 | Trimming device for automobile part machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120860692.2U CN214817251U (en) | 2021-04-25 | 2021-04-25 | Trimming device for automobile part machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214817251U true CN214817251U (en) | 2021-11-23 |
Family
ID=78768619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120860692.2U Expired - Fee Related CN214817251U (en) | 2021-04-25 | 2021-04-25 | Trimming device for automobile part machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214817251U (en) |
-
2021
- 2021-04-25 CN CN202120860692.2U patent/CN214817251U/en not_active Expired - Fee Related
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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: 20211123 |