CN217755203U - Bucket arm mechanism of garbage truck - Google Patents
Bucket arm mechanism of garbage truck Download PDFInfo
- Publication number
- CN217755203U CN217755203U CN202221279069.9U CN202221279069U CN217755203U CN 217755203 U CN217755203 U CN 217755203U CN 202221279069 U CN202221279069 U CN 202221279069U CN 217755203 U CN217755203 U CN 217755203U
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- positioning arm
- garbage
- arm
- hanging frame
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 120
- 230000007246 mechanism Effects 0.000 title claims abstract description 74
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000011435 rock Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007306 turnover Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/10—Waste collection, transportation, transfer or storage, e.g. segregated refuse collecting, electric or hybrid propulsion
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Abstract
The utility model relates to the technical field of garbage trucks, and discloses a bucket arm mechanism of a garbage truck, which comprises a hanging frame, a positioning arm and a positioning arm driving mechanism; the hanging frame is rotatably arranged on the garbage truck and is used for hanging the garbage can; one end of the positioning arm is rotatably arranged on the hanging frame, and the other end of the positioning arm is provided with a limiting piece used for limiting the garbage can on the positioning arm; the positioning arm driving mechanism is arranged on the hanging frame, and the output end of the positioning arm driving mechanism is in transmission connection with the positioning arm and used for driving the positioning arm to rotate towards the direction close to or far away from the hanging frame so as to open or retract the positioning arm. The utility model provides a bucket arm mechanism can open automatically or pack up the locating arm, and it rocks to solve the locating arm, leads to the problem of bucket arm mechanism damage.
Description
Technical Field
The utility model relates to a garbage truck technical field, concretely relates to bucket arm mechanism of garbage truck.
Background
The garbage truck is a special vehicle for conveying various garbage, and is mainly used for municipal sanitation, large factories and mines, residential garbage transportation in residential districts and the like. In order to realize dumping the garbage in the garbage can into the filler at the rear part of the garbage can, the garbage truck usually adopts a can arm mechanism to position and fix the garbage can, and then overturns the garbage can to dump the garbage.
The existing bucket arm mechanism generally comprises a hanging frame and a positioning arm hinged on the hanging frame, when the garbage can hanging device is used, the positioning arm needs to be rotated outwards to be opened, then the garbage can is hung on the hanging frame and connected with the garbage can and the positioning arm, and therefore the garbage can is positioned on the hanging frame. However, the positioning arm is generally limited on the hanging frame through the pulling bolt, when the positioning arm is used, a worker needs to manually open the pulling bolt and then manually rotate to open the positioning arm, after the positioning arm is used, the worker needs to manually rotate again to fold the positioning arm and manually close the pulling bolt, and therefore the positioning arm is very troublesome; and when the positioning arm is limited on the hanging frame through the pulling bolt, the positioning arm is easy to shake along with the running of the garbage truck and collides with the hanging frame for many times, so that the bucket arm mechanism is easy to damage, and the service life of the bucket arm mechanism is greatly reduced.
In summary, it is necessary to design a garbage truck arm mechanism to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a bucket arm mechanism of garbage truck can open automatically or pack up the location arm, and it rocks to solve the location arm, leads to the problem that bucket arm mechanism damaged.
(II) technical scheme
In order to solve the technical problem, the utility model provides a following technical scheme: a bucket arm mechanism of a garbage truck comprises a hanging frame, a positioning arm and a positioning arm driving mechanism;
the hanging frame is rotatably arranged on the garbage truck and is used for hanging the garbage can;
one end of the positioning arm is rotatably arranged on the hanging frame, and the other end of the positioning arm is provided with a limiting piece used for limiting the garbage can on the positioning arm;
the positioning arm driving mechanism is arranged on the hanging frame, and the output end of the positioning arm driving mechanism is in transmission connection with the positioning arm and is used for driving the positioning arm to rotate towards the direction far away from or close to the hanging frame so as to open or retract the positioning arm.
Further, the positioning arm driving mechanism comprises a telescopic rod; the rotating end of the positioning arm is fixedly provided with a linkage part; one end of the telescopic rod is arranged on the hanging frame, and the other end of the telescopic rod is hinged with the linkage part and drives the linkage part to move along the extension direction of the telescopic rod.
With the arrangement, the telescopic rod and the linkage part form a crank-rocker mechanism, so that when the telescopic rod contracts, the linkage part can be driven to move along the contraction direction of the telescopic rod, and the positioning arm is driven to rotate outwards to be opened; otherwise, when the telescopic rod extends, the linkage part can be driven to move along the extending direction of the telescopic rod, so that the positioning arm is driven to rotate inwards to be folded, and the control mode is very flexible and convenient.
Further, the free end of the positioning arm is provided with a hanging concave part for hanging the hanging part at one side of the garbage can.
According to the arrangement, the edge of the garbage can is hung on the hanging frame and the hanging concave part simultaneously, and the edge of the garbage can is matched with the hanging frame and the hanging concave part to limit the position of the garbage can.
The limiting piece is arranged on the free end of the positioning arm in a sliding mode and is driven by the gravity of the limiting piece to move towards the direction close to or far away from the opening of the hanging concave part so as to close or open the hanging concave part.
According to the arrangement, when the garbage truck drives the hanging frame to rotate, the positioning arm overturns towards a garbage can on the garbage truck along with the hanging frame to drive the garbage can to overturn together, in the overturning process, the limiting part automatically slides towards the opening direction close to the hanging concave part due to the change of the gravity center position of the limiting part, so that the hanging concave part is sealed, the hanging part on one side of the garbage can is limited in the hanging concave part, the garbage can is limited on the can arm mechanism, and the garbage can is prevented from falling off from the can arm mechanism when being dumped; after the garbage is dumped, the garbage truck drives the hanging frame to rotate reversely, the positioning arm drives the garbage can to reversely turn together, and in the turning process, the limiting part automatically slides towards the opening direction far away from the hanging concave part due to the change of the gravity center position of the limiting part, so that the hanging concave part is opened, and the garbage can is directly taken down from the can arm mechanism.
The rotating end of the positioning arm is provided with a switching column; a first adapter plate and a second adapter plate are fixedly arranged on the hanging frame; the first adapter plate and the second adapter plate are respectively rotatably arranged at the top end and the bottom end of the adapter column, and a waterproof part is arranged at the bottom of the first adapter plate; the waterproof part is annular and is sleeved outside the adapter column to prevent water from flowing into the rotating connection part of the positioning arm and the hanging frame.
So set up, sewage etc. in rainwater or rubbish are blockked in the switching post outside by waterproof portion to avoid water to flow into the locating arm and articulate the rotation junction of frame between first switching board and the switching post, in order to avoid rotating the bonding of rustting of junction, lead to rotating the jam, and then lead to locating arm actuating mechanism to be difficult to drive the locating arm and open or pack up.
The top of the second adapter plate is provided with a water diversion groove and an annular guide surface; the guide surface is positioned below the adapter column and on the inner side of the water diversion groove and is used for guiding water at the bottom end of the adapter column to flow into the water diversion groove; the diversion channel is used for guiding water to flow out of the second adapter plate.
So set up, the spigot surface and the diversion channel cooperation can avoid water overstock and flow in between second keysets and the keysets to avoid water to flow in the locating arm and articulate the rotation junction of frame between second keysets and the keysets, in order to avoid rotating the junction and rusty the adhesion, lead to rotating the jam, and then lead to locating arm actuating mechanism to be difficult to drive the locating arm and open or pack up.
Further, a buffer cushion is arranged on one side of the hanging rack, which is in contact with the garbage can; the buffer pad is used for reducing the garbage bin to the impact force that articulates the frame.
So set up, after the garbage bin has fallen rubbish, articulate the frame and drive its reverse upset, because bucket arm mechanism is its spacing at the garbage bin top, the focus position that leads to garbage bin self can change along with the upset, consequently, the reverse upset in-process of garbage bin, its bottom can be driven because of the change of upset in-process focus position and is close to and articulates the frame, thereby take place the striking with articulating the frame, and the blotter can reduce the impact force that the striking produced greatly, thereby protection garbage bin and this bucket arm mechanism are all not impaired.
Further, a plurality of hanging pieces distributed at intervals are fixedly arranged on the hanging frame; the hanging piece is used for hanging one side of the garbage can.
According to the arrangement, one side edge of the garbage can is hung on the hanging frame through the hanging piece so as to limit the position of the garbage can; when the garbage can is hung on the hanging piece, the hanging part on the side part of the garbage can is aligned with the hanging concave part at the free end of the positioning arm, namely, the hanging part on the side part of the garbage can is synchronously hung on the hanging concave part when the garbage can is hung on the hanging piece.
(III) advantageous effects
Compared with the prior art, the utility model provides a pair of bucket arm mechanism of garbage truck possesses following beneficial effect:
1. before dumping garbage, the garbage truck drives the positioning arm to rotate in a direction far away from the hanging frame through the positioning arm driving mechanism to open the positioning arm, then hangs the garbage can on the hanging frame, and limits the garbage can on the positioning arm through the limiting part, so that garbage can be dumped; after dumping the garbage, the positioning arm can be driven by the positioning arm driving mechanism to rotate towards the direction close to the hanging frame so as to retract the positioning arm, and the garbage can be taken down from the hanging frame;
therefore, the bucket arm mechanism of the garbage truck provided by the utility model can automatically open or close the positioning arm through the positioning arm driving mechanism, and the manual opening or closing of the working personnel is not needed, so that the garbage truck is very convenient;
2. the positioning arm is driven by the positioning arm driving mechanism, and when the positioning arm driving mechanism is not started, the positioning arm is limited by the positioning arm driving mechanism to be incapable of moving, so that the problem that the barrel arm mechanism is damaged due to the swinging of the positioning arm is solved, and the service life of the barrel arm mechanism is prolonged;
3. can be spacing on the locating arm with the garbage bin through the locating part, when avoiding falling rubbish, the garbage bin drops, leaves the hooking bracket automatically.
Drawings
Fig. 1 is a schematic perspective view of a bucket arm mechanism (with a positioning arm in a retracted state) according to the present invention;
fig. 2 is a schematic perspective view of the bucket arm mechanism (positioning arm turned open state) according to the present invention;
fig. 3 is a structural sectional view of the first adapter plate, the second adapter plate and the positioning arm.
Reference numerals: 1. a hanging frame; 11. a turning shaft; 12. hanging and connecting pieces; 13. a cushion pad; 14. a first transfer plate; 141. a waterproof section; 15. a second adapter plate; 151. a water diversion groove; 152. a guide surface; 16. a rotating shaft; 2. a positioning arm; 21. a transfer column; 22. a linkage section; 23. hanging a concave part; 24. a chute; 25. a stopper; 3. a positioning arm drive mechanism; 31. a telescopic rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the bucket arm mechanism of the garbage truck is convenient and does not need to be manually opened or closed by workers.
The bucket arm mechanism comprises a hanging frame 1, two positioning arms 2 and two positioning arm driving mechanisms 3.
A turnover shaft 11 is fixed on one side of the hanging frame 1, a plurality of hanging pieces 12 distributed at intervals are fixed on the top of the other side of the hanging frame, and the hanging pieces 12 are blocky and are used for hanging one side of the garbage can on the hanging frame; the hanging rack 1 is rotatably arranged on the garbage truck through a turnover shaft 11 and is driven by a turnover oil cylinder on the garbage truck to turn over the garbage can hung on the hanging rack 1.
A buffer pad 13 is fixed on one side of the hanging frame 1, which is contacted with the garbage can; the buffer pad 13 is made of elastic materials such as sponge or rubber and is used for reducing the impact force of the garbage can on the hanging rack 1.
One end of each of the two positioning arms 2 is rotatably mounted at the two ends of the hitching frame 1 respectively, and the rotating end is fixed with a switching column 21, and the switching column 21 is provided with a rotating hole; a first adapter plate 14 and a second adapter plate 15 are fixed on the hanging frame 1, the first adapter plate 14 and the second adapter plate 15 are respectively positioned at the upper side and the lower side of the adapter column 21, and a rotating shaft 16 in clearance fit with the rotating hole is fixed at one side of the first adapter plate 14 opposite to one side of the second adapter plate 15; the rotating shaft 16 and the rotating hole are rotatably connected through a bearing, so that the top ends of the first adapter plate 14 and the adapter column 21 and the bottom ends of the second adapter plate 15 and the adapter column 21 are rotatably connected.
The bottom of the first adapter plate 14 is integrally connected with a waterproof part 141; the waterproof portion 141 is annular and is sleeved on the outer side of the top end of the adapter column 21 to prevent water from flowing into the rotating connection position of the positioning arm 2 and the hanging frame 1.
The top of the second adapter plate 15 is provided with a water guide groove 151 and an annular guide surface 152; the guide surface 152 is obliquely arranged, is positioned below the adapter column 21 and is positioned on the inner side of the flume 151 and is used for guiding water at the bottom end of the adapter column 21 to flow into the flume 151; the water guide groove 151 is used to guide water to flow out of the second adapter plate 15.
The outer side of the adapter column 21 is fixed with a linkage part 22, and the linkage part 22 is in a block shape; the free end of the positioning arm 2 is provided with a hanging concave part 23 for hanging a hanging part at one side of the garbage can, the hanging concave part 23 is matched with the hanging part 12 for hanging the garbage can, and the left position, the right position and the front position of the garbage can are respectively limited.
The free end of the positioning arm 2 is also provided with a sliding chute 24, the sliding chute 24 is internally connected with a limiting piece 25 used for limiting the garbage can on the positioning arm 2 in a sliding way, and two ends of the limiting piece 25 are both in a hook shape so as to limit the limiting piece 25 to only slide along the sliding chute 24 and not to be separated from the sliding chute 24; the stopper 25 is driven by its own weight to slide along the slide groove 24 toward or away from the opening of the hooking recess 23 to close or open the hooking recess 23.
The positioning arm driving mechanism 3 includes an expansion link 31; the telescopic rod 31 is an existing telescopic shaft of a telescopic cylinder or an existing electric telescopic rod 31, in this embodiment, the telescopic rod 31 is taken as the telescopic shaft of the telescopic cylinder as an example, the two telescopic cylinders are respectively fixed at two ends of the hanging frame 1, the tail end of the telescopic shaft is hinged with the linkage part 22, and the linkage part 22 is driven to move along the extending direction of the telescopic rod 31, so that the positioning arm 2 is driven to rotate towards the direction close to or far away from the hanging frame 1, and the positioning arm 2 is controlled to be opened or retracted.
In a specific embodiment, as shown in fig. 1-3, the present invention provides an example of a bucket arm mechanism of a garbage truck, which mainly includes: the articulated frame 1, two positioning arms 2 and two positioning arm driving mechanisms 3.
During actual assembly and use: (1) A turning shaft 11 is welded at one side of the hanging frame 1, a plurality of hanging pieces 12 are welded at the top of the other side of the hanging frame, and a cushion pad 13 is also screwed at the bottom of the side; a first adapter plate 14 and a second adapter plate 15 are welded at two ends of the hanging frame 1, and a rotating shaft 16 is welded at one side of the first adapter plate 14 opposite to one side of the second adapter plate 15; the bottom of the first adapter plate 14 is integrally connected with a waterproof part 141; the top of the second adapter plate 15 is provided with a water diversion groove 151, and the top of the second adapter plate 15 is provided with a guide surface 152;
(2) One end of the positioning arm 2 is welded with a changeover column 21, and the changeover column 21 is provided with a rotary hole in clearance fit with the rotary shaft 16; the first adapter plate 14 and the second adapter plate 15 are respectively positioned at the upper side and the lower side of the adapter column 21, and the waterproof part 141 is sleeved at the outer side of the top end of the adapter column 21; the outer side of the adapter column 21 is welded with a linkage part 22; the free end of the positioning arm 2 is provided with a hanging concave part 23; the free end of the positioning arm 2 is also provided with a sliding groove 24, and a limiting piece 25 is connected in the sliding groove 24 in a sliding manner;
(3) The telescopic cylinder is fixed on the hanging frame 1 through bolts, and the tail end of a telescopic shaft of the telescopic cylinder is hinged with the linkage part 22.
The working principle in actual use is as follows:
when the garbage truck using the bucket arm mechanism provided by the utility model is used for dumping garbage, firstly, the telescopic cylinder is started to drive the telescopic rod 31 to contract, the telescopic rod 31 drives the linkage part 22 to move along the contraction direction of the telescopic rod 31, so as to drive the positioning arm 2 to rotate outwards and open, then, the front side of the top of the garbage can is hung on the hanging part 12, and the hanging part on the left side or the right side of the garbage can is hung on the hanging concave part 23; then the garbage can be dumped by controlling the bucket arm mechanism to overturn through an overturning oil cylinder on the garbage truck, in the overturning process, the limiting piece 25 slides towards the opening direction close to the hanging concave part 23 to seal the hanging concave part 23, and the hanging part hung on the hanging concave part 23 is limited in the hanging concave part 23, so that the garbage can is limited on the bucket arm mechanism, and the garbage can is prevented from falling off the bucket arm mechanism;
after the garbage is poured out, the bucket arm mechanism can be controlled to reversely turn through a turning oil cylinder on the garbage truck, in the turning process, the limiting piece 25 slides towards the direction far away from the opening of the hanging concave part 23 to open the hanging concave part 23, and after the garbage is reversely turned back to the original position, the garbage can be directly taken down from the hanging concave part 23 and the hanging connecting piece 12; and finally, starting the telescopic cylinder again to drive the telescopic rod 31 to extend, and driving the linkage part 22 to move along the extension direction of the telescopic rod 31, so as to drive the positioning arm 2 to rotate inwards and retract along with the extension direction.
The bucket arm mechanism of the garbage truck provided by the utility model can automatically open or close the positioning arm 2 through the positioning arm driving mechanism 3, and the bucket arm mechanism is very convenient without being manually opened or closed by workers;
because the positioning arm 2 is driven by the positioning arm driving mechanism 3, when the positioning arm driving mechanism 3 is not started, the positioning arm 2 is limited by the positioning arm driving mechanism 3 to be incapable of moving, so that the problem that the barrel arm mechanism is damaged due to the shaking of the positioning arm 2 is solved, and the service life of the barrel arm mechanism is prolonged;
the positions of the garbage cans can be completely limited through the matching of the positioning arms 2 and the hanging pieces 12, the garbage cans are prevented from falling off and automatically leave the hanging frame 1, and the two garbage cans can be respectively fixed through the two positioning arms 2, so that the two garbage cans pour garbage at the same time, and the garbage pouring efficiency is accelerated;
the impact between the trash can and the arm mechanism can be reduced by the cushion pad 13, thereby protecting both from damage.
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.
Claims (8)
1. A bucket arm mechanism of a garbage truck is characterized by comprising a hanging frame, a positioning arm and a positioning arm driving mechanism;
the hanging frame is rotatably arranged on the garbage truck and is used for hanging the garbage can;
one end of the positioning arm is rotatably arranged on the hanging frame, and the other end of the positioning arm is provided with a limiting piece used for limiting the garbage can on the positioning arm;
the positioning arm driving mechanism is arranged on the hanging frame, and the output end of the positioning arm driving mechanism is in transmission connection with the positioning arm and is used for driving the positioning arm to rotate towards the direction far away from or close to the hanging frame so as to open or retract the positioning arm.
2. The bin arm mechanism of a garbage truck according to claim 1, wherein the positioning arm driving mechanism comprises a telescopic rod; a linkage part is fixedly arranged on the rotating end of the positioning arm; one end of the telescopic rod is arranged on the hanging frame, and the other end of the telescopic rod is hinged with the linkage part and drives the linkage part to move along the extension direction of the telescopic rod.
3. The arm mechanism of a garbage truck as claimed in claim 1, wherein the free end of the positioning arm is provided with a hanging recess for hanging a hanging part at one side of the garbage can.
4. The arm mechanism as claimed in claim 3, wherein the stopper is slidably disposed at a free end of the positioning arm and is driven by its own weight to move toward or away from the opening of the hanging recess to close or open the hanging recess.
5. The bucket arm mechanism of a garbage truck as claimed in claim 1, wherein the rotating end of the positioning arm is provided with an adapter column; a first adapter plate and a second adapter plate are fixedly arranged on the hanging frame; the first adapter plate and the second adapter plate are respectively rotatably arranged at the top end and the bottom end of the adapter column, and a waterproof part is arranged at the bottom of the first adapter plate; the waterproof part is annular and is sleeved outside the adapter column to prevent water from flowing into the rotary joint of the positioning arm and the hanging frame.
6. The bucket arm mechanism of a garbage truck as claimed in claim 5, wherein a water guiding groove and an annular guiding surface are arranged at the top of the second adapter plate; the guide surface is positioned below the adapter column and on the inner side of the water diversion groove and is used for guiding water at the bottom end of the adapter column to flow into the water diversion groove; the diversion channel is used for guiding water to flow out of the second adapter plate.
7. The bucket arm mechanism of a garbage truck as claimed in claim 1, wherein a buffer pad is further provided on the side of the hanging frame contacting with the garbage can; the buffer pad is used for reducing the impact force of the garbage bin on the hanging frame.
8. The bucket arm mechanism of a garbage truck as claimed in claim 1, wherein a plurality of hanging pieces are fixed on the hanging frame and distributed at intervals; the hanging piece is used for hanging one side of the garbage can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221279069.9U CN217755203U (en) | 2022-05-25 | 2022-05-25 | Bucket arm mechanism of garbage truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221279069.9U CN217755203U (en) | 2022-05-25 | 2022-05-25 | Bucket arm mechanism of garbage truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217755203U true CN217755203U (en) | 2022-11-08 |
Family
ID=83888263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221279069.9U Expired - Fee Related CN217755203U (en) | 2022-05-25 | 2022-05-25 | Bucket arm mechanism of garbage truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217755203U (en) |
-
2022
- 2022-05-25 CN CN202221279069.9U patent/CN217755203U/en not_active Expired - Fee Related
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| 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: 20221108 |