CN214684108U - Padlock nameplate riveting device and automatic riveting device - Google Patents
Padlock nameplate riveting device and automatic riveting device Download PDFInfo
- Publication number
- CN214684108U CN214684108U CN202120265689.6U CN202120265689U CN214684108U CN 214684108 U CN214684108 U CN 214684108U CN 202120265689 U CN202120265689 U CN 202120265689U CN 214684108 U CN214684108 U CN 214684108U
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- feeding
- riveting
- seat
- padlock
- hole
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- 238000010304 firing Methods 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000002788 crimping Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model relates to a padlock data plate riveting device and automatic riveting device. Padlock data plate riveting device includes: riveting and pressing the base; the lifting device is arranged on the riveting seat; the feeding seat is arranged on the lifting device and is provided with a first riveting hole and a first feeding hole; the material pushing seat is slidably arranged on the feeding seat and is provided with a second riveting hole and a second feeding hole; the material moving cylinder is fixed on the feeding seat and is connected with the material pushing seat; the feeding pipe is arranged on the first feeding hole; the two firing pins are movably inserted into the first riveting hole; the riveting cylinder is arranged on the feeding seat and is connected with the firing pin; the feeding shaft is provided with an eccentric hole, is rotatably arranged on the feeding seat and rotates around the axis of the first riveting hole; and the rotating device is connected with the feeding shaft and is used for driving the feeding shaft to rotate. The device aligns data plate and padlock through the firing pin to in sending into the hole with the rivet through the pay-off axle, the riveting is accomplished to the rethread firing pin, simple structure, and the riveting is fast, low in production cost.
Description
Technical Field
The utility model relates to a padlock production facility, especially padlock data plate riveting device and automatic riveting device.
Background
The padlock is usually provided with a nameplate, and the nameplate is riveted on the padlock through a rivet. Be equipped with two rivet holes on the data plate, be equipped with two riveting bottom holes on the padlock, the rivet hole is corresponding with the riveting bottom hole, and the rivet is inserted in riveting bottom hole and rivet hole. The existing nameplates are all riveted manually, the manual riveting efficiency is low, and the production cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a can align data plate and padlock and carry out the riveting automatically, the padlock data plate riveting device that the riveting is fast, concrete technical scheme is:
padlock data plate riveting device includes: riveting and pressing the base; the lifting device is arranged on the riveting seat; the feeding seat is arranged on the lifting device and is provided with a first riveting hole and a first feeding hole which correspond to the riveting bottom hole on the padlock; the material pushing seat is slidably mounted on the feeding seat, and a second riveting hole and a second feeding hole are formed in the material pushing seat; the material moving cylinder is fixed on the feeding seat and is connected with the material pushing seat; the feeding pipe is arranged on the feeding seat and communicated with the first feeding hole; the two firing pins are movably inserted into the first riveting hole; the riveting cylinder is arranged on the feeding seat and is connected with the firing pin; the feeding shaft is provided with an eccentric hole, the eccentric hole is communicated with the first riveting hole, and the feeding shaft is rotatably arranged on the feeding seat and rotates around the axis of the first riveting hole; and the rotating device is connected with the feeding shaft and is used for driving the feeding shaft to rotate.
Further, the lifting device includes: the lifting cylinder is fixed on the riveting seat and is connected with the feeding seat; and the feeding seat is slidably mounted on the riveting seat through the lifting linear guide rail pair.
Further, a rotating device, the rotating device comprising: the rotating motor is arranged on the feeding seat; a driving wheel mounted on the rotating motor; and the belt is connected with the driving wheel and the feeding shaft respectively.
Further, still include exhaust speed adjusting device, exhaust speed adjusting device includes: an air inlet of the exhaust electromagnetic valve is connected with an air outlet of the riveting cylinder when the riveting cylinder extends out; and the exhaust speed regulating valve is arranged on one exhaust port of the exhaust electromagnetic valve.
Automatic riveting device of padlock data plate includes: the padlock nameplate riveting device is arranged on the padlock fixing device; the padlock nameplate riveting device is arranged on the riveting frame; the feeding guide rail is fixed on the riveting frame and is positioned below the feeding seat, a feeding groove is formed in the feeding guide rail, a first positioning groove matched with a padlock is formed in the top of the feeding guide rail, and the feeding groove is communicated with the first positioning groove; the material moving device is mounted on the riveting frame, is movably inserted into the feeding groove and is used for moving the padlock to the position below the feeding seat; and the nameplate feeding device is arranged on the riveting frame and is positioned on one side of the padlock nameplate riveting device, and the nameplate feeding device is used for moving a nameplate to the lower part of the feeding seat.
Further, the material moving device comprises: the first bottom plate is fixed on the riveting frame; the first air cylinder is fixed on the first bottom plate; the first lifting plate is connected with the first cylinder; the first material moving seat is slidably mounted on the first lifting plate; the three first feeding seats are fixed on the first material moving seat, a second positioning groove matched with a padlock is formed in the top of each first feeding seat, and the first feeding seats are inserted into the feeding grooves in a sliding mode; and the second cylinder is arranged on the first lifting plate, is connected with the first material moving seat and is used for driving the first material moving seat to reciprocate.
Further, data plate material feeding unit includes: a vacuum chuck; the feeding rod is provided with the vacuum chuck; the third air cylinder is connected with the feeding rod and used for moving the vacuum chuck to the position below the feeding seat; the feeding rod is slidably mounted on the lifting seat, and the third air cylinder is fixed on the lifting seat; the fourth cylinder is fixed on the feeding guide rail and is connected with the lifting seat; and the nameplate seat is arranged on one side of the feeding guide rail and used for placing nameplates.
The automatic riveting method of the padlock nameplate comprises the following steps:
the lifting cylinder retracts, the first material moving seat moves the padlock to the position below the material conveying seat, the first cylinder retracts, and the padlock is inserted into the first positioning groove;
the lifting cylinder extends out, and the feeding seat descends to the upper part of the padlock;
the material moving cylinder extends out, a second riveting hole of the material pushing seat is communicated with a first riveting hole on the feeding seat, and the rivet enters a second feeding hole through the first feeding hole;
the riveting cylinder extends out, the exhaust electromagnetic valve is switched to the exhaust speed regulating valve to exhaust, the firing pin is inserted into the riveting bottom hole of the padlock at a low speed to position the riveting bottom hole, then the riveting cylinder retracts, and the firing pin rises above the material pushing seat;
the vacuum chuck adsorbs the nameplate, the fourth cylinder rises, the third cylinder extends out, and the nameplate is moved above the padlock;
the riveting cylinder extends out, the exhaust electromagnetic valve is switched to the exhaust speed regulating valve to exhaust, the firing pin is inserted into the rivet hole of the nameplate and the riveting bottom hole of the padlock at a low speed to complete the positioning of the rivet hole and the riveting bottom hole, then the riveting cylinder retracts, and the firing pin rises above the material pushing seat;
the material moving cylinder retracts, the material pushing seat moves, the second feeding hole is communicated with the first riveting hole, and the rivet enters the eccentric hole through the first riveting hole;
the rotating device drives the feeding shaft to rotate, the eccentric hole drives the rivet to rotate around the first riveting hole, the rivet is inserted into the rivet hole, and then the feeding shaft stops rotating;
the riveting cylinder extends out, the exhaust solenoid valve is switched to the exhaust port to exhaust, the firing pin quickly strikes the rivet, and the riveting cylinder drives the firing pin to reciprocate to quickly strike the rivet to complete riveting;
the lifting cylinder retracts, the second cylinder extends, the first cylinder retracts, the padlock which is riveted with the nameplate leaves the feeding seat, and the padlock to be riveted moves to the lower side of the feeding seat.
Compared with the prior art the utility model discloses following beneficial effect has:
the utility model provides a padlock data plate riveting device aligns data plate and padlock through the firing pin to the eccentric orfice through the pay-off axle rotates and sends the rivet into the hole, and the riveting is accomplished to the rethread firing pin, simple structure, and the riveting is fast, has reduced manufacturing cost.
Drawings
FIG. 1 is a schematic view of a padlock nameplate riveting device;
FIG. 2 is a front view of the padlock tag riveting device;
FIG. 3 is a schematic view of the padlock nameplate riveting device after parts are hidden;
FIG. 4 is a cross-sectional view of the padlock tag riveting device;
FIG. 5 is a schematic view of the structure of the feeding base;
FIG. 6 is a schematic structural view of the pusher shoe;
FIG. 7 is a schematic view of the feed shaft;
FIG. 8 is a schematic structural view of an automatic padlock plate riveting device;
fig. 9 is a schematic structural diagram of the material moving device.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings.
Example one
As shown in fig. 1 to 7, the padlock nameplate riveting device comprises: a riveting base 11; the lifting device is arranged on the riveting seat 11; the feeding seat 21 is arranged on the lifting device, and the feeding seat 21 is provided with a first riveting hole 213 and a first feeding hole 215 corresponding to the riveting bottom hole on the padlock 92; the material pushing seat 22 is arranged on the material feeding seat 21 in a sliding mode, and the material pushing seat 22 is provided with a second riveting hole 222 and a second material feeding hole 223; the material moving cylinder 23 is fixed on the feeding seat 21 and is connected with the material pushing seat 22; a feeding pipe 31, wherein the feeding pipe 31 is arranged on the feeding seat 21 and is communicated with the first feeding hole 215; the two striker rods 25 are arranged, and the two striker rods 25 are movably inserted into the first riveting holes 213; the riveting cylinder 27 is arranged on the feeding seat 21 and connected with the firing pin 25; the feeding shaft 32 is provided with an eccentric hole 321, the eccentric hole 321 is communicated with the first riveting hole 213, and the feeding shaft 32 is rotatably installed on the feeding seat 21 and rotates around the axis of the first riveting hole 213; and the rotating device is connected with the feeding shaft 32 and is used for driving the feeding shaft 32 to rotate.
The feeding pipe 31 is connected to a vibratory feeding device for aligning the rivets and feeding the rivets into the first feeding holes 215 in a riveting direction. The feeding pipe 31 is connected with the vibration feeding device through a hose. The vibration feeding device is an existing mature product and is not described in detail here.
The end of the striker 25 is tapered to facilitate insertion into the rivet hole and the rivet bottom hole, and also to enable riveting.
The striker 25 is mounted on a connecting seat 26, and the connecting seat 26 is fixed to a rivet cylinder 27.
The lifting device comprises: the lifting cylinder 12 is fixed on the riveting seat 11 and is connected with the feeding seat 21; and the feeding seat 21 is slidably arranged on the riveting seat 11 through the lifting linear guide rail pair.
A rotating device, the rotating device comprising: the rotating motor 35, the rotating motor 35 is installed on the feeding seat 21; a driving wheel 34, wherein the driving wheel 34 is arranged on the rotating motor 35; and a belt connected with the driving wheel 34 and the feeding shaft 32 respectively.
Belt grooves are formed in the driving wheel 34 and the feeding shaft 32, and the belt is located in the belt grooves.
Still include exhaust speed adjusting device, exhaust speed adjusting device includes: an air inlet of the exhaust electromagnetic valve is connected with an air outlet when the riveting cylinder 27 extends out; and the exhaust speed regulating valve is arranged on one exhaust port of the exhaust electromagnetic valve.
The exhaust speed regulating valve is used for regulating the exhaust speed, namely regulating the extending speed of the cylinder, and the switching of the extending speed of the riveting cylinder 27 is realized through the exhaust electromagnetic valve.
The riveting air cylinder 27 is fixed on the feeding seat 21 through a connecting frame 28.
The feeding seat 21 is provided with a first avoiding groove 211, the pushing seat 22 is provided with a second avoiding groove 221, and the second avoiding groove 221 corresponds to the first avoiding groove 211 and is used for the passing of the vacuum chuck 63, so that the feeding and the positioning of the nameplate are facilitated.
The feeding base 21 is provided with a sliding groove 212, and the pushing base 22 is installed in the sliding groove 212 and slides in the sliding groove 212. The first riveting hole 213 of the feeding base 21 is a through hole, the first feeding hole 215 is communicated with the sliding groove 212, and the first feeding hole 215 is not a through hole. The first rivet hole 213 is formed at an upper portion of the sliding groove 212 and is provided with the sliding sleeve 24.
The feeding shaft 32 is mounted on a rotary seat 33 through a bearing, and the rotary seat 33 is fixed at the bottom of the feeding seat 21.
Because the top of rivet is bigger than the diameter of riveting axle, therefore the rivet is vertical state usually, can not disect insertion to the rivet hole, consequently realizes the rivet through rotating the rivet and seeks the riveting hole automatically, sends into the rivet hole and the riveting bottom hole with the rivet, accomplishes the rivet and inserts.
The insertion of the rivet is a key step, and the problem that the rivet cannot be accurately inserted into a nameplate and a riveting bottom hole of the padlock 92 in the prior art is solved.
The exhaust speed is switched by the exhaust speed regulating device, so that quick exhaust and slow exhaust are realized, the striker 25 can descend slowly in the padlock 92 and nameplate positioning process, the nameplate or the padlock 92 cannot be damaged, and safety and reliability are realized; and the striker 25 can rapidly impact the rivet in a reciprocating manner during riveting, so that the rivet is riveted.
Example two
As shown in fig. 1 to 9, the automatic riveting device for the nameplate of the padlock comprises: a padlock nameplate riveting device; the riveting frame is provided with a padlock 92 nameplate riveting device; the feeding guide rail 51 is fixed on the riveting frame and positioned below the feeding seat 21, a feeding groove 511 is arranged on the feeding guide rail 51, a first positioning groove 512 matched with the padlock 92 is arranged at the top of the feeding guide rail 51, and the feeding groove 511 is communicated with the first positioning groove 512; the material moving device is arranged on the riveting frame, is movably inserted into the feeding groove 511 and is used for moving the padlock 92 to the lower part of the feeding seat 21; and the nameplate feeding device is arranged on the riveting frame and is positioned on one side of the padlock 92 nameplate riveting device, and the nameplate feeding device is used for moving the nameplate below the feeding seat 21.
As shown in fig. 9, the material moving device includes: the first bottom plate 56, the first bottom plate 56 is fixed on riveting and pressing the shelf; a first cylinder 57, the first cylinder 57 being fixed to the first base plate 56; a first lift plate 54, the first lift plate 54 being connected to a first cylinder 57; the first material moving seat 53, the first material moving seat 53 is slidably mounted on the first lifting plate 54; the number of the first feeding seats 52 is three, the first feeding seats 52 are fixed on the first material moving seat 53, the top of the first feeding seat 52 is provided with a second positioning groove 521 matched with the padlock 92, and the first feeding seat 52 is slidably inserted into the feeding groove 511; and the second air cylinder 55 is arranged on the first lifting plate 54, is connected with the first material moving seat 53 and is used for driving the first material moving seat 53 to reciprocate.
Both ends of the first elevation plate 54 are installed on the first base plate 56 through a pair of linear guide rails for elevation in the vertical direction.
The first transfer base 53 is mounted on the first lifting plate 54 through a pair of linear guide rails, and is adapted to slide along the loading chute 511.
When the material is moved, the first air cylinder 57 retracts, the second air cylinder 55 extends, then the first air cylinder 57 rises, the first feeding seat 52 at the rightmost end places the padlock 92 with the riveted nameplate into the second positioning groove 521, the padlock 92 with the nameplate to be riveted is placed on the first feeding seat 52 at the leftmost end, then the second air cylinder 55 retracts, the padlock 92 with the riveted nameplate moves to the lower part of the feeding seat 21, the first feeding seat 52 at the rightmost end moves the padlock with the riveted nameplate to the next process, then the first air cylinder 57 retracts, the first feeding seat 52 descends to the lower part of the padlock 92, and the second air cylinder 55 extends to prepare for next feeding.
Data plate material feeding unit includes: a vacuum chuck 63; the feeding rod 64, the vacuum chuck 63 is arranged on the feeding rod 64; the third air cylinder 65 is connected with the feeding rod 64 and used for moving the vacuum chuck 63 to the lower part of the feeding seat 21; the feeding rod 64 is arranged on the lifting seat 66 in a sliding mode through a linear guide rail pair, and the third air cylinder 65 is fixed on the lifting seat 66; the fourth cylinder 67 is fixed on the feeding guide rail 51 and connected with the lifting seat 66; and the nameplate seat 61 is arranged on one side of the feeding guide rail 51 and used for placing nameplates, and the nameplate seat 61 is arranged on one side of the feeding guide rail 51.
The top of the nameplate seat 61 is provided with a positioning pin 62 matched with the rivet hole of the nameplate, and the nameplate is inserted on the positioning pin 62.
The fourth cylinder 67 is a double-shaft cylinder or a three-shaft cylinder
EXAMPLE III
The automatic riveting method of the padlock nameplate comprises the following steps:
the lifting cylinder 12 retracts, the first material moving seat 53 moves the padlock 92 below the material conveying seat 21, the first cylinder retracts, and the padlock 92 is inserted into the first positioning groove 512;
the lifting cylinder 12 extends out, and the feeding seat 21 descends to the upper part of the padlock 92;
the material moving cylinder 23 extends out, a second riveting hole 222 of the material pushing seat 22 is communicated with a first riveting hole 213 on the material feeding seat 21, and the rivet enters a second material feeding hole 223 through the first material feeding hole 215;
the riveting cylinder 27 extends out, the exhaust electromagnetic valve is switched to the exhaust speed regulating valve to exhaust, the firing pin 25 is slowly inserted into the riveting bottom hole of the padlock 92 to position the riveting bottom hole, then the riveting cylinder 27 retracts, and the firing pin 25 rises above the material pushing seat 22;
the nameplate is adsorbed by the vacuum chuck 63, the fourth air cylinder 67 rises, the third air cylinder 65 extends out, and the nameplate is moved to the upper part of the padlock 92;
the riveting cylinder 27 extends out, the exhaust electromagnetic valve is switched to the exhaust speed regulating valve to exhaust, the firing pin 25 is slowly inserted into the rivet hole of the nameplate and the riveting bottom hole of the padlock 92 to complete the positioning of the rivet hole and the riveting bottom hole, then the riveting cylinder 27 retracts, and the firing pin 25 rises above the material pushing seat 22;
the material moving cylinder 23 retracts, the material pushing seat 22 moves, the second feeding hole 223 is communicated with the first riveting hole 213, and the rivet enters the eccentric hole 321 through the first riveting hole 213;
the rotating device drives the feeding shaft 32 to rotate, the eccentric hole 321 drives the rivet to rotate around the first riveting hole 213, so that the rivet is inserted into the rivet hole, and then the feeding shaft 32 stops rotating;
the riveting cylinder 27 extends out, the exhaust solenoid valve is switched to the exhaust port to exhaust, the striker 25 quickly strikes the rivet, and the riveting cylinder 27 drives the striker 25 to reciprocate to quickly strike the rivet to complete riveting;
the lifting cylinder 12 retracts, the second cylinder extends, the first cylinder retracts, the padlock 92 with the riveted nameplate leaves the feeding seat 21, and the padlock 92 to be riveted moves below the feeding seat 21.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the claims of the present invention.
Claims (7)
1. Padlock data plate crimping device, its characterized in that includes:
riveting and pressing the base;
the lifting device is arranged on the riveting seat;
the feeding seat is arranged on the lifting device and is provided with a first riveting hole and a first feeding hole which correspond to the riveting bottom hole on the padlock;
the material pushing seat is slidably mounted on the feeding seat, and a second riveting hole and a second feeding hole are formed in the material pushing seat;
the material moving cylinder is fixed on the feeding seat and is connected with the material pushing seat;
the feeding pipe is arranged on the feeding seat and communicated with the first feeding hole;
the two firing pins are movably inserted into the first riveting hole;
the riveting cylinder is arranged on the feeding seat and is connected with the firing pin;
the feeding shaft is provided with an eccentric hole, the eccentric hole is communicated with the first riveting hole, and the feeding shaft is rotatably arranged on the feeding seat and rotates around the axis of the first riveting hole; and
and the rotating device is connected with the feeding shaft and is used for driving the feeding shaft to rotate.
2. The padlock tag riveting device of claim 1, wherein the lifting device comprises:
the lifting cylinder is fixed on the riveting seat and is connected with the feeding seat; and
and the feeding seat is slidably mounted on the riveting seat through the lifting linear guide rail pair.
3. The padlock tag riveting device of claim 1, wherein the rotation device comprises:
the rotating motor is arranged on the feeding seat;
a driving wheel mounted on the rotating motor; and
the belt is connected with the driving wheel and the feeding shaft respectively.
4. The padlock nameplate riveting device of claim 1, further comprising an exhaust governor device, the exhaust governor device comprising:
an air inlet of the exhaust electromagnetic valve is connected with an air outlet of the riveting cylinder when the riveting cylinder extends out; and
and the exhaust speed regulating valve is arranged on one exhaust port of the exhaust electromagnetic valve.
5. Automatic riveting device of padlock data plate, its characterized in that includes:
the padlock tag riveting device of claim 1;
the padlock nameplate riveting device is arranged on the riveting frame;
the feeding guide rail is fixed on the riveting frame and is positioned below the feeding seat, a feeding groove is formed in the feeding guide rail, a first positioning groove matched with a padlock is formed in the top of the feeding guide rail, and the feeding groove is communicated with the first positioning groove;
the material moving device is mounted on the riveting frame, is movably inserted into the feeding groove and is used for moving the padlock to the position below the feeding seat; and
and the nameplate feeding device is arranged on the riveting frame and is positioned on one side of the padlock nameplate riveting device, and the nameplate feeding device is used for moving a nameplate to the lower part of the feeding seat.
6. The automatic padlock nameplate riveting device of claim 5, wherein the material moving device comprises:
the first bottom plate is fixed on the riveting frame;
the first air cylinder is fixed on the first bottom plate;
the first lifting plate is connected with the first cylinder;
the first material moving seat is slidably mounted on the first lifting plate;
the three first feeding seats are fixed on the first material moving seat, a second positioning groove matched with a padlock is formed in the top of each first feeding seat, and the first feeding seats are inserted into the feeding grooves in a sliding mode; and
and the second cylinder is arranged on the first lifting plate, is connected with the first material moving seat and is used for driving the first material moving seat to reciprocate.
7. The automatic padlock nameplate riveting device of claim 6, wherein the nameplate feeding device comprises:
a vacuum chuck;
the feeding rod is provided with the vacuum chuck;
the third air cylinder is connected with the feeding rod and used for moving the vacuum chuck to the position below the feeding seat;
the feeding rod is slidably mounted on the lifting seat, and the third air cylinder is fixed on the lifting seat;
the fourth cylinder is fixed on the feeding guide rail and is connected with the lifting seat; and
and the nameplate seat is arranged on one side of the feeding guide rail and is used for placing nameplates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120265689.6U CN214684108U (en) | 2021-01-31 | 2021-01-31 | Padlock nameplate riveting device and automatic riveting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120265689.6U CN214684108U (en) | 2021-01-31 | 2021-01-31 | Padlock nameplate riveting device and automatic riveting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214684108U true CN214684108U (en) | 2021-11-12 |
Family
ID=78565489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120265689.6U Expired - Fee Related CN214684108U (en) | 2021-01-31 | 2021-01-31 | Padlock nameplate riveting device and automatic riveting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214684108U (en) |
-
2021
- 2021-01-31 CN CN202120265689.6U patent/CN214684108U/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: 20211112 |