CN214754405U - High-performance bent radio frequency coaxial connector - Google Patents
High-performance bent radio frequency coaxial connector Download PDFInfo
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- CN214754405U CN214754405U CN202120706820.8U CN202120706820U CN214754405U CN 214754405 U CN214754405 U CN 214754405U CN 202120706820 U CN202120706820 U CN 202120706820U CN 214754405 U CN214754405 U CN 214754405U
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- 230000000694 effects Effects 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000000295 complement effect Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 3
- 230000001771 impaired effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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Abstract
The utility model discloses a curved formula radio frequency coaxial connector of high performance, its technical scheme is: including the casing, the inside complementary unit that is equipped with of casing, complementary unit extends the casing outside, complementary unit includes two connecting plates, two the connecting plate is fixed respectively and locates casing one side and casing bottom, complementary unit still includes two auxiliary assembly, the beneficial effects of the utility model are that: through complementary unit's design, not only can fix the connecting wire of equidimension not, can accomplish the effect that the inside rail mounted of casing slided moreover at the removal in-process, through the firm centre gripping to the connecting wire both ends, on the one hand, accessible second extension board presss from both sides the landing that tightly prevents the connecting wire to the connecting wire, the problem of equipment contact failure has been avoided, on the other hand, also can reach high-efficient convenient dismouting effect, the change of the later stage connecting wire of being convenient for, with the problem of solving the connecting wire and be impaired easily and can't firm clamp tightly.
Description
Technical Field
The utility model relates to a radio frequency coaxial connector technical field, concretely relates to curved formula radio frequency coaxial connector of high performance.
Background
The rf coaxial connector is generally considered to be a component attached to a cable or mounted on an instrument, as an element for electrical connection or separation of a transmission line, it belongs to an electromechanical integration product, and simply, it mainly functions as a bridge, and compared with other electronic components, the rf coaxial connector has a short development history, and the UHF connector appearing in 1930 is the earliest rf coaxial connector, and since the second world war, due to the urgent war, medium-sized series such as N, C, BNC, TNC, etc. are produced along with the development of radar, radio and microwave communication, and the small-sized products such as SMA, SMB, SMC, etc. appear after 1958, and since then, the rf coaxial connector is developed to the direction of standardization, serialization, and universalization.
The prior art has the following defects: most of the existing radio frequency coaxial connectors are right-angled insertion paths in the process of connecting a connecting line, the connecting line is easily damaged due to the defect that the angle cannot be adjusted in the process of first insertion or long-term insertion, the service life and the transmission effect are influenced, and how to fix the connecting line after installation is also a problem.
Therefore, it is necessary to invent a high performance bent rf coaxial connector.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a curved formula radio frequency coaxial connector of high performance, design through complementary unit, not only can fix the connecting wire of equidimension not, and the effect that the inside rail mounted of casing slided can be accomplished at the removal in-process, through the firm centre gripping to the connecting wire both ends, on the one hand, accessible second extension board presss from both sides the landing that tightly prevents the connecting wire to the connecting wire, the problem of equipment contact failure has been avoided, on the other hand, also can reach high-efficient convenient dismouting effect, the change of the later stage connecting wire of being convenient for, in order to solve the connecting wire easy impaired and can't firm tight problem of clamp.
In order to achieve the above object, the present invention provides the following technical solutions: a high-performance bent radio frequency coaxial connector comprises a shell, wherein an auxiliary mechanism is arranged inside the shell and extends out of the shell;
the auxiliary mechanism comprises two connecting plates which are respectively and fixedly arranged on one side of the shell and the bottom of the shell, and two auxiliary assemblies which are respectively arranged on two sides inside the connecting plates and extend out of the connecting plates;
the auxiliary assembly comprises a first L-shaped plate, the bottom of the connecting plate is arranged on the first L-shaped plate, a hollow groove is formed in one side of the inside of the connecting plate, the first L-shaped plate extends into the inside of the hollow groove, a fixing plate is fixedly arranged at the top of the first L-shaped plate, a rack is fixedly arranged on the front side of the fixing plate, a threaded rod is arranged on the front side of the rack, a connecting block is fixedly arranged on the side wall of the inner cavity of the hollow groove, the threaded rod extends into the inside of the connecting block and is connected with the connecting block through a bearing, a gear is fixedly arranged on the outside of the threaded rod, the gear is arranged on the front side of the rack and is meshed with the rack, a threaded block is arranged on the outside of the threaded rod, the threaded block is in threaded connection with the threaded rod, the auxiliary assembly further comprises an auxiliary component, and the auxiliary component is arranged on one side of the inner cavity of the shell.
Preferably, the fixed riser that is equipped with in dead slot inner chamber bottom, the threaded rod extends into inside the riser and passes through the bearing with the riser and be connected, the fixed slide bar that is equipped with in screw thread piece bottom, the spout has been seted up to the dead slot bottom, the slide bar extends into inside the spout.
Preferably, the fixed short slab that is equipped with in screw thread piece top, the fixed diaphragm that is equipped with in short slab one side, the diaphragm top is equipped with the telescopic link, the telescopic link is through activity hank seat swing joint with the diaphragm, the telescopic link outside is fixed and is equipped with first spring, the diaphragm top is equipped with the fly leaf, the fly leaf is through activity hank seat swing joint with the diaphragm, the telescopic link is through activity hank seat swing joint with the fly leaf, the fixed dog that is equipped with in dead slot inner chamber top, the fly leaf contacts with the dog, the inside spread groove of having seted up of connecting plate, inside diaphragm and fly leaf all extended into the spread groove.
Preferably, the fixed second spring that is equipped with between first L shaped plate and the connecting plate, logical groove has been seted up to casing one side, the connecting plate top is equipped with second L shaped plate, second L shaped plate extends into the dead slot inside, second L shaped plate runs through logical groove, the fixed third spring that is equipped with between second L shaped plate and the connecting plate, the fixed bottom plate that is equipped with in second L shaped plate bottom, the fixed push pedal that is equipped with in bottom plate bottom, inside bottom plate and the push pedal extend into the spread groove, the push pedal contacts with the dog.
Preferably, a first support plate is fixedly arranged on one side of the transverse plate, two fourth springs are fixedly arranged on one side of the first support plate, a second support plate is fixedly arranged on one side of each fourth spring, the first support plate and the fourth springs are arranged inside the connecting grooves, and the second support plate is arranged inside the connecting grooves.
Preferably, a fifth spring is fixedly arranged on one side wall of the inner cavity of the shell, an inclined plate is fixedly arranged on one side of the fifth spring, and an inclined block is fixedly arranged on one side of the inclined plate.
Preferably, a first rotating rod is arranged inside the shell, two ends of the first rotating rod are respectively connected with the front side wall and the rear side wall of the shell through bearings, a first pulley is fixedly arranged outside the first rotating rod, and the first pulley is arranged on one side of the oblique block.
Preferably, the inside second dwang that is equipped with of casing, second dwang both ends pass through the bearing with both sides wall around the casing respectively and are connected, second dwang external fixation is equipped with the second pulley, first pulley bottom is located to the second pulley.
Preferably, the auxiliary component comprises a limiting block, and the limiting block is fixedly arranged on one side wall of the inner cavity of the shell.
Preferably, the auxiliary component comprises a limiting rod, and the limiting rod is fixedly arranged on one side wall of the inner cavity of the shell.
The utility model has the advantages that:
1. the utility model can protect the connecting line from being damaged by the stress of the sloping block and the fifth spring in the shell through simple structural design, and then the track type sliding effect in the shell is completed in the moving process through the design of the first pulley and the second pulley, thereby solving the defects that the original right-angle design is difficult to turn and the connecting line is easy to be damaged by force;
2. the utility model discloses an auxiliary mechanism's design can be fixed the connecting wire of equidimension not to through the firm centre gripping to the connecting wire both ends, on the one hand, accessible second extension board presss from both sides the landing that tightly prevents the connecting wire to the connecting wire, has avoided the problem of equipment contact failure, and on the other hand also can reach high-efficient convenient dismouting effect, the change of the later stage connecting wire of being convenient for.
Drawings
FIG. 1 is a perspective view of the overall structure provided by the present invention;
fig. 2 is a schematic view of the overall structure provided by the present invention;
fig. 3 is an enlarged view of a point a in fig. 2 according to the present invention;
fig. 4 is a schematic view of the overall structure of embodiment 2 provided by the present invention;
in the figure: the device comprises a shell 1, a connecting plate 2, a first L-shaped plate 3, a hollow groove 4, a fixing plate 5, a rack 6, a threaded rod 7, a connecting block 8, a gear 9, a threaded block 10, a vertical plate 11, a telescopic rod 12, a movable plate 13, a second L-shaped plate 14, a first support plate 15, a second support plate 16, an inclined plate 17, a first pulley 18, a second pulley 19, a limiting block 20 and a limiting rod 21.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Embodiment 1, referring to fig. 1-3, the high-performance bent rf coaxial connector provided by the present invention includes a housing 1, wherein an auxiliary mechanism is disposed inside the housing 1, and the auxiliary mechanism extends out of the housing 1;
the auxiliary mechanism comprises two connecting plates 2, the two connecting plates 2 are respectively and fixedly arranged on one side of the shell 1 and the bottom of the shell 1, the auxiliary mechanism also comprises two auxiliary components, and the two auxiliary components are respectively arranged on two sides inside the connecting plates 2 and extend out of the connecting plates 2;
the auxiliary component comprises a first L-shaped plate 3, the first L-shaped plate 3 is arranged at the bottom of the connecting plate 2, a hollow groove 4 is arranged on one side inside the connecting plate 2, the first L-shaped plate 3 extends into the hollow groove 4, a fixed plate 5 is fixedly arranged at the top of the first L-shaped plate 3, a rack 6 is fixedly arranged at the front side of the fixed plate 5, a threaded rod 7 is arranged at the front side of the rack 6, a connecting block 8 is fixedly arranged on one side wall of the inner cavity of the empty groove 4, the threaded rod 7 extends into the connecting block 8 and is connected with the connecting block 8 through a bearing, a gear 9 is fixedly arranged outside the threaded rod 7, the gear 9 is arranged at the front side of the rack 6 and is meshed with the rack 6, a thread block 10 is arranged outside the threaded rod 7, the thread block 10 is connected with the threaded rod 7 through threads, the auxiliary assembly further comprises an auxiliary component, and the auxiliary component is arranged on one side of the inner cavity of the shell 1;
furthermore, a vertical plate 11 is fixedly arranged at the bottom of an inner cavity of the empty groove 4, the threaded rod 7 extends into the vertical plate 11 and is connected with the vertical plate 11 through a bearing, a sliding rod is fixedly arranged at the bottom of the thread block 10, a sliding groove is formed at the bottom of the empty groove 4, and the sliding rod extends into the sliding groove so as to limit the thread block 10;
further, a short plate is fixedly arranged at the top of the thread block 10, a transverse plate is fixedly arranged on one side of the short plate, a telescopic rod 12 is arranged at the top of the transverse plate, the telescopic rod 12 is movably connected with the transverse plate through a movable hinge base, a first spring is fixedly arranged outside the telescopic rod 12, a movable plate 13 is arranged at the top of the transverse plate, the movable plate 13 is movably connected with the transverse plate through the movable hinge base, the telescopic rod 12 is movably connected with the movable plate 13 through the movable hinge base, a stop block is fixedly arranged at the top of an inner cavity of the hollow groove 4, the movable plate 13 is in contact with the stop block, a connecting groove is formed in the connecting plate 2, and the transverse plate and the movable plate 13 both extend into the connecting groove, so that the movable plate can move to drive the movable plate 13 to move;
further, a second spring is fixedly arranged between the first L-shaped plate 3 and the connecting plate 2, a through groove is formed in one side of the shell 1, a second L-shaped plate 14 is arranged at the top of the connecting plate 2, the second L-shaped plate 14 extends into the hollow groove 4, the second L-shaped plate 14 penetrates through the through groove, a third spring is fixedly arranged between the second L-shaped plate 14 and the connecting plate 2, a bottom plate is fixedly arranged at the bottom of the second L-shaped plate 14, a push plate is fixedly arranged at the bottom of the bottom plate, the bottom plate and the push plate extend into the connecting groove, and the push plate is in contact with the stop block, so that the first L-shaped plate 3 can move and reset conveniently, and the push plate can move conveniently;
furthermore, a first supporting plate 15 is fixedly arranged on one side of the transverse plate, two fourth springs are fixedly arranged on one side of the first supporting plate 15, a second supporting plate 16 is fixedly arranged on one side of the two fourth springs, the first supporting plate 15 and the fourth springs are both arranged in the connecting groove, and the second supporting plate 16 is arranged in the connecting groove, so that the first supporting plate 15 and the second supporting plate 16 can move conveniently;
furthermore, a fifth spring is fixedly arranged on one side wall of the inner cavity of the shell 1, an inclined plate 17 is fixedly arranged on one side of the fifth spring, and an inclined block is fixedly arranged on one side of the inclined plate 17, so that the inclined block can move and reset conveniently;
furthermore, a first rotating rod is arranged inside the shell 1, two ends of the first rotating rod are respectively connected with the front side wall and the rear side wall of the shell 1 through bearings, a first pulley 18 is fixedly arranged outside the first rotating rod, and the first pulley 18 is arranged on one side of the inclined block, so that the first pulley 18 can rotate conveniently;
furthermore, a second rotating rod is arranged inside the shell 1, two ends of the second rotating rod are respectively connected with the front side wall and the rear side wall of the shell 1 through bearings, a second pulley 19 is fixedly arranged outside the second rotating rod, and the second pulley 19 is arranged at the bottom of the first pulley 18 so as to facilitate the rotation of the second pulley 19;
further, the auxiliary component includes a limiting block 20, the limiting block 20 is fixedly arranged on a side wall of the inner cavity of the shell 1, and the connecting line is convenient to limit.
The utility model discloses a use as follows: when the utility model is used, when the connecting wire needs to be threaded out of the shell 1, the connecting wire is firstly inserted into the shell 1 through the connecting groove, when the connecting wire is contacted with the inclined plate 17, the fifth spring is compressed, at the moment, the connecting wire is guided by the inclined block to move to a position between the first pulley 18 and the second pulley 19, meanwhile, the connecting wire continuously moves to achieve the effect that the connecting wire passes through the shell 1, when the connecting wire needs to be fixed, the first L-shaped plate 3 is pressed, the first L-shaped plate 3 moves to drive the second spring to be compressed, the fixed plate 5 moves at the same time, the fixed plate 5 moves to drive the rack 6 to move, the rack 6 moves to drive the gear 9 to rotate, the gear 9 rotates to drive the threaded rod 7 to rotate to drive the threaded block 10 to move, the threaded block 10 moves to drive the short plate to move, the short plate moves to drive the transverse plate to move, the transverse plate moves to drive the movable plate 13 to move, when the movable plate 13 contacts with the stop block, the movable plate 13 is pressed downwards to drive the telescopic rod 12 to compress with the first spring, when the movable plate 13 does not contact with the stop block, the telescopic rod 12 and the first spring are simultaneously stretched to drive the movable plate 13 to open outwards, at the same time, the movable plate 13 contacts with the stop block, at the same time, the first support plate 15 moves to drive the fourth spring to move, the fourth spring moves to drive the second support plate 16 to move, the second support plate 16 contacts with the connecting wire to drive the fourth spring to compress, thereby completing the fixing effect of the connecting wire, when the structure needs to be unlocked, the second L-shaped plate 14 is pressed, the second L-shaped plate 14 moves to drive the third spring to compress, at the same time, the bottom plate moves downwards to drive the push plate to move, the push plate moves to drive the movable plate 13 to press, the movable plate 13 presses downwards to drive the telescopic rod 12 to compress with the first spring simultaneously, when the movable plate 13 completely enters the bottom of the stop block, the rest working principle is opposite to the above, so that the effect of unlocking the structure is achieved.
Embodiment 2, refer to fig. 4, the utility model provides a pair of curved formula radio frequency coaxial connector of high performance, auxiliary component includes gag lever post 21, gag lever post 21 is fixed locates 1 inner chamber lateral wall of casing.
The utility model discloses a use as follows: when the utility model is used, when the connecting wire needs to be threaded out of the shell 1, the connecting wire is firstly inserted into the shell 1 through the connecting groove, when the connecting wire is contacted with the inclined plate 17, the fifth spring is compressed, at the moment, the connecting wire is guided by the inclined block to move to a position between the first pulley 18 and the second pulley 19, meanwhile, the connecting wire continuously moves to achieve the effect that the connecting wire passes through the shell 1, when the connecting wire needs to be fixed, the first L-shaped plate 3 is pressed, the first L-shaped plate 3 moves to drive the second spring to be compressed, the fixed plate 5 moves at the same time, the fixed plate 5 moves to drive the rack 6 to move, the rack 6 moves to drive the gear 9 to rotate, the gear 9 rotates to drive the threaded rod 7 to rotate to drive the threaded block 10 to move, the threaded block 10 moves to drive the short plate to move, the short plate moves to drive the transverse plate to move, the transverse plate moves to drive the movable plate 13 to move, when the movable plate 13 contacts with the stop block, the movable plate 13 is pressed down to drive the telescopic rod 12 and the first spring to compress, and the limiting rod 21 limits the connecting line, so that the accuracy of the moving position of the connecting line is ensured when the connecting line is continuously input into the shell 1.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (10)
1. A high-performance bent radio frequency coaxial connector comprises a shell (1), and is characterized in that: an auxiliary mechanism is arranged inside the shell (1) and extends out of the shell (1);
the auxiliary mechanism comprises two connecting plates (2), the two connecting plates (2) are respectively and fixedly arranged on one side of the shell (1) and the bottom of the shell (1), and the auxiliary mechanism also comprises two auxiliary components which are respectively arranged on two sides in the connecting plates (2) and extend out of the connecting plates (2);
the auxiliary assembly comprises a first L-shaped plate (3), the first L-shaped plate (3) is arranged at the bottom of the connecting plate (2), a hollow groove (4) is formed in one side inside the connecting plate (2), the first L-shaped plate (3) extends into the hollow groove (4), a fixing plate (5) is fixedly arranged at the top of the first L-shaped plate (3), a rack (6) is fixedly arranged on the front side of the fixing plate (5), a threaded rod (7) is arranged on the front side of the rack (6), a connecting block (8) is fixedly arranged on one side wall of an inner cavity of the hollow groove (4), the threaded rod (7) extends into the connecting block (8) and is connected with the connecting block (8) through a bearing, a gear (9) is fixedly arranged on the outer portion of the threaded rod (7), the gear (9) is arranged on the front side of the rack (6) and is meshed with the rack (6), and a threaded block (10) is arranged on the outer portion of the threaded rod (7), the screw block (10) is in threaded connection with the threaded rod (7), the auxiliary assembly further comprises an auxiliary component, and the auxiliary component is arranged on one side of the inner cavity of the shell (1).
2. The high performance bent rf coaxial connector of claim 1, wherein: dead slot (4) inner chamber bottom is fixed and is equipped with riser (11), threaded rod (7) extend into riser (11) inside and be connected through the bearing with riser (11), the fixed slide bar that is equipped with in screw thread piece (10) bottom, the spout has been seted up to dead slot (4) bottom, the slide bar extends into inside the spout.
3. The high performance bent rf coaxial connector of claim 1, wherein: the fixed chopping board that is equipped with in screw thread piece (10) top, the fixed diaphragm that is equipped with in chopping board one side, the diaphragm top is equipped with telescopic link (12), telescopic link (12) and diaphragm are through activity hank seat swing joint, telescopic link (12) external fixation is equipped with first spring, the diaphragm top is equipped with fly leaf (13), fly leaf (13) and diaphragm are through activity hank seat swing joint, telescopic link (12) and fly leaf (13) are through activity hank seat swing joint, dead slot (4) inner chamber top is fixed and is equipped with the dog, fly leaf (13) contact with the dog, the spread groove has been seted up to connecting plate (2) inside, inside diaphragm and fly leaf (13) all extended into the spread groove.
4. The high performance bent rf coaxial connector of claim 3, wherein: fixed second spring that is equipped with between first L shaped plate (3) and connecting plate (2), logical groove has been seted up to casing (1) one side, connecting plate (2) top is equipped with second L shaped plate (14), inside second L shaped plate (14) extended into dead slot (4), logical groove is run through in second L shaped plate (14), fixed third spring that is equipped with between second L shaped plate (14) and connecting plate (2), fixed bottom plate that is equipped with in second L shaped plate (14) bottom, the fixed push pedal that is equipped with in bottom plate bottom, inside bottom plate and push pedal extended into the spread groove, the push pedal contacts with the dog.
5. The high performance bent rf coaxial connector of claim 3, wherein: the novel connecting structure is characterized in that a first supporting plate (15) is fixedly arranged on one side of the transverse plate, two fourth springs are fixedly arranged on one side of the first supporting plate (15), a second supporting plate (16) is fixedly arranged on one side of the two fourth springs, the first supporting plate (15) and the fourth springs are arranged inside a connecting groove, and the second supporting plate (16) is arranged inside the connecting groove.
6. The high performance bent rf coaxial connector of claim 1, wherein: a fifth spring is fixedly arranged on one side wall of an inner cavity of the shell (1), an inclined plate (17) is fixedly arranged on one side of the fifth spring, and an inclined block is fixedly arranged on one side of the inclined plate (17).
7. The high performance bent rf coaxial connector of claim 6, wherein: the novel oblique block type elevator is characterized in that a first rotating rod is arranged inside the shell (1), two ends of the first rotating rod are connected with the front side wall and the rear side wall of the shell (1) through bearings respectively, a first pulley (18) is fixedly arranged on the outer portion of the first rotating rod, and the first pulley (18) is arranged on one side of the oblique block.
8. The high performance bent rf coaxial connector of claim 7, wherein: the inside second dwang that is equipped with of casing (1), second dwang both ends pass through the bearing with casing (1) front and back both sides wall respectively and are connected, second dwang external fixation is equipped with second pulley (19), first pulley (18) bottom is located in second pulley (19).
9. The high performance bent rf coaxial connector of claim 1, wherein: the auxiliary component comprises a limiting block (20), and the limiting block (20) is fixedly arranged on one side wall of the inner cavity of the shell (1).
10. The high performance bent rf coaxial connector of claim 1, wherein: the auxiliary component comprises a limiting rod (21), and the limiting rod (21) is fixedly arranged on one side wall of the inner cavity of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120706820.8U CN214754405U (en) | 2021-04-08 | 2021-04-08 | High-performance bent radio frequency coaxial connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120706820.8U CN214754405U (en) | 2021-04-08 | 2021-04-08 | High-performance bent radio frequency coaxial connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214754405U true CN214754405U (en) | 2021-11-16 |
Family
ID=78601056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120706820.8U Expired - Fee Related CN214754405U (en) | 2021-04-08 | 2021-04-08 | High-performance bent radio frequency coaxial connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214754405U (en) |
-
2021
- 2021-04-08 CN CN202120706820.8U patent/CN214754405U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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Granted publication date: 20211116 |