CN210379386U - Antenna lifting mechanism - Google Patents
Antenna lifting mechanism Download PDFInfo
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- CN210379386U CN210379386U CN201921111445.1U CN201921111445U CN210379386U CN 210379386 U CN210379386 U CN 210379386U CN 201921111445 U CN201921111445 U CN 201921111445U CN 210379386 U CN210379386 U CN 210379386U
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- rotating shaft
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- window
- connecting rod
- fixing ring
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 238000004804 winding Methods 0.000 claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 230000003028 elevating effect Effects 0.000 claims description 16
- 238000013016 damping Methods 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The utility model provides an antenna lifting mechanism, which comprises a plurality of barrels, a box body, a driving unit, a winding roller and a connecting rod, wherein the adjacent barrels are nested and connected in a sliding way, the box body is fixedly arranged on the barrel body at the outermost side, the driving unit and the winding roller are both arranged in the box body, and the winding roller is rotationally connected with the box body; the driving unit drives the winding roller to rotate; a steel wire rope is wound on the winding drum and connected with the drum body on the outermost side; the box body is correspondingly provided with a first window matched with the connecting rod, one end of the connecting rod is in threaded connection with the driving unit, the other end of the connecting rod penetrates through the first window, and the driving unit drives the connecting rod to linearly move along the extending direction of the first window. The utility model realizes the limiting function of the limit stroke through the connecting rod, and prevents the damage of the steel wire rope caused by excessively pulling the steel wire rope; the connecting rod is in threaded connection with the first rotating shaft, the position precision is high, and the operation is stable.
Description
Technical Field
The utility model relates to an antenna equipment field especially relates to an antenna elevating system.
Background
The antenna is widely applied to the fields of wireless base stations, monitoring, military and the like as common communication equipment, and the outdoor antenna is usually matched with an antenna lifting mechanism for use. The antenna lifting mechanism is a lifting device for an elevated antenna, and can lift the load on the top of the antenna to a specified height. The antenna lifting mechanism usually adopts a hand-cranking mode to drive the steel wire rope to lift and further drive the antenna to lift, corresponding limitation is mostly not lacked at the extreme position, a user always packs the antenna at an initial position or raises the antenna to the extreme position and then continues to rotate forwards or backwards, so that the steel wire rope and the steel wire rope assembly bear extra tensile force, the time is long, the service life of the steel wire rope can be greatly reduced, and potential safety hazards exist for the antenna user.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an antenna elevating system with position is injectd function is provided.
The technical scheme of the utility model is realized like this: an antenna lifting mechanism comprises a plurality of barrel bodies (1), a box body (2), a driving unit (3) and a winding roller (4), wherein the adjacent barrel bodies (1) are nested and connected in a sliding mode, the box body (2) is fixedly arranged on the barrel body (1) on the outermost side, the driving unit (3) and the winding roller (4) are arranged in the box body (2), and the winding roller (4) is rotatably connected with the box body (2); the driving unit (3) drives the winding roller (4) to rotate; a steel wire rope is wound on the winding drum (4) and is connected with the drum body (1) on the outermost side; still include a connecting rod (5), correspond on box (2) and set up first window (21) that suit with connecting rod (5), the one end and the drive unit (3) threaded connection of connecting rod (5), first window (21) are passed to the other end of connecting rod (5), and drive unit (3) drive connecting rod (5) are along the extending direction linear motion of first window (21).
On the basis of the technical scheme, preferably, the lowest point position of the cylinder body (1) corresponds to the limit position of one end of the first window (21); the highest position of the rising of each cylinder (1) corresponds to the limit position of the other end of the first window (21).
On the basis of the technical scheme, preferably, the driving unit (3) comprises a first rotating shaft (31), and two ends of the first rotating shaft (31) are hinged with the box body (2); the surface of one end, close to the cylinder body (1), of the first rotating shaft (31) is provided with external threads, one end, connected with the first rotating shaft (31), of the connecting rod (5) is provided with internal threads, and the connecting rod (5) is in threaded connection with the first rotating shaft (31).
Further preferably, the winding device further comprises a second fluted disc (41), wherein the second fluted disc (41) is coaxially arranged with the winding drum (4); the drive unit (3) further comprises a first toothed disc (32), the first toothed disc (32) being arranged on the first rotary shaft (31), the second toothed disc (41) being in engagement with the first toothed disc (32).
Preferably, the box body (2) is provided with a second window (22), one end of the steel wire rope is fixedly connected with the winding drum (4), and the other end of the steel wire rope penetrates through the second window (22) and extends into the cylinder body (1) on the outermost side and is fixedly connected with the inner surface of the cylinder body (1) far away from the first rotating shaft (31).
Further preferably, a ratchet wheel (7) is arranged on the first rotating shaft (31), and the ratchet wheel (7) is connected with the first rotating shaft (31); a fixing rod (23) is arranged in the box body (2), the fixing rod (23) is fixedly connected with the box body (2), a pawl (24) is arranged at one end, away from the box body (2), of the fixing rod (23), the pawl (24) is hinged with the fixing rod (23), a tension spring (25) is further arranged on the pawl (24), one end of the tension spring (25) is fixedly connected with the pawl (24), and the other end of the tension spring (25) is fixedly connected with the box body (2); the pawl (24) is abutted against the ratchet wheel (7).
Still further preferably, a shifting rod (26) is arranged on the pawl (24), the shifting rod (26) is fixedly connected with the pawl (24), a third window (27) is arranged on the box body (2), the shifting rod (26) penetrates through the third window (27) and extends outwards, and the shifting rod (26) is connected with the third window (27) in a sliding mode.
Still further preferably, a one-way damping unit (8) is further arranged on the first rotating shaft (31), and the one-way damping unit (8) comprises a first fixing ring (81), a second fixing ring (82), a first gasket (83) and a second gasket (84); the first fixing ring (81) and the second fixing ring (82) are oppositely arranged on the first rotating shaft (31) at two sides of the ratchet wheel (7), and the first fixing ring (81) and the second fixing ring (82) are fixedly connected with the first rotating shaft (31); a first gasket (83) is arranged between the first fixing ring (81) and the ratchet wheel (7), a second gasket (84) is arranged between the ratchet wheel (7) and the second fixing ring (82), and the first gasket (83) and the second gasket (84) are hinged with the first rotating shaft (31); the first gasket (83) is in contact with the ratchet wheel (7) and the compression ring (85), and the second gasket (84) is in contact with the ratchet wheel (7) and the second fixing ring (82); the first fixing ring (81) is in threaded connection with the first fluted disc (32).
Still more preferably, the first toothed disc (32) rotates relative to the first fixed ring (81), and when the cylinder (1) is lifted, the end face of the first toothed disc (32) abuts against the end face of the first fixed ring (81); when the cylinder body (1) descends, the end face of the first fluted disc (32) is abutted against the end face of the first gasket (83).
Still more preferably, both end surfaces of the first gasket (83) and the second gasket (84) are rough surfaces.
Still preferably, the one-way damping unit (8) further comprises a compression ring (85), the compression ring is rotatably or slidably connected with the first fixing ring (81), and an end face of the compression ring (85) abuts against the surface of the first toothed disc (32) or the first gasket (83).
Still preferably, a handle (6) is arranged at one end of the first rotating shaft (31) far away from the cylinder body (1), and the handle (6) is fixedly connected with the first rotating shaft (31).
The utility model provides a pair of antenna elevating system for prior art, has following beneficial effect:
(1) the utility model realizes the limiting function of the limit stroke through the connecting rod, and prevents the damage of the steel wire rope caused by excessively pulling the steel wire rope;
(2) the connecting rod is in threaded connection with the first rotating shaft, so that the position precision is high and the operation is stable;
(3) the winding drum can take up the steel wire rope or pay out the steel wire rope under the driving of the driving unit, and the effect of lifting the drum body is achieved;
(4) the matching structure of the ratchet wheel and the pawl can ensure that the first rotating shaft can only rotate in one direction, thereby playing the role of preventing falling;
(5) the one-way damping unit can increase the resistance of the first rotating shaft and the ratchet wheel, so that the rotating speed of the first rotating shaft is reduced when the antenna descends, the descending process is gentle, and accidents can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a top view of an antenna elevating mechanism according to the present invention;
fig. 2 is a front sectional view of an antenna elevating mechanism according to the present invention;
fig. 3 is a right side view of the combination state of the ratchet, the pawl, the fixing rod, the shift lever and the tension spring of the antenna elevating mechanism of the present invention;
FIG. 4 is a schematic view of another operating condition of FIG. 3;
fig. 5 is a front view of a one-way damping unit of an antenna elevating mechanism of the present invention;
fig. 6 is a front cross-sectional view of the combined state of the cylinder and the wire rope of the antenna lifting mechanism of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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 all belong to the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the utility model provides an antenna lifting mechanism, including a plurality of barrels 1, box 2, drive unit 3, wire winding drum 4, connecting rod 5, handle 6, ratchet 7 and one-way damping unit 8. The winding device comprises a box body 2, a driving unit 3, a winding roller 4, a winding roller and a winding roller, wherein adjacent cylinders 1 are nested and slidably connected, the box body 2 is fixedly arranged on the outermost cylinder 1, the driving unit 3 and the winding roller 4 are both arranged in the box body 2, and the winding roller 4 is rotatably connected with the box body 2; the driving unit 3 drives the winding roller 4 to rotate; a steel wire rope is wound on the winding drum 4 and connected with the drum body 1 on the outermost side; still include a connecting rod 5, correspond on the box 2 and offer the first window 21 that suits with connecting rod 5, the one end and the drive unit 3 threaded connection of connecting rod 5, the first window 21 is passed to the other end of connecting rod 5, drive unit 3 drives connecting rod 5 along the extending direction linear motion of first window 21. In the process of rotation of the driving unit 3, the connecting rod 5 can move along with the driving unit 3, and the connecting rod 5 extends out of the first window 21, so that the connecting rod 5 can only slide along the extending direction of the first window 21, and a user of the antenna can observe the position of the part, passing through the first window 21, of the connecting rod 5 at any time to know the actual position of each cylinder 1 of the antenna in time, so that the situation that the user continues to rotate the driving unit 3 after the antenna rises to or falls to the limit height is avoided, and adverse effects are caused to a steel wire rope. When the barrel 1 is raised or lowered to the extreme position, the link 5 prevents the user from further rotating the driving unit 3, thereby functioning as a position limitation.
In a further improvement, as shown in fig. 2, the lowest point of the cylinder 1 corresponds to the extreme position of one end of the first window 21; the highest point of each barrel 1 rise corresponds to the extreme position of the other end of the first window 21. I.e. the extreme positions of the ends of the first window 21 correspond to the extreme positions of the fully retracted or fully extended barrel 1, respectively. The user can more conveniently observe the current height of the cylinder body 1. A scale may also be provided at the first window 21 to allow for precise control of the height of the cartridge 1.
As shown in fig. 2, the driving unit 3 includes a first rotating shaft 31, and both ends of the first rotating shaft 31 are hinged to the box 2; the surface of the first rotating shaft 31 near one end of the barrel 1 is provided with an external thread, the end of the connecting rod 5 connected with the first rotating shaft 31 is provided with an internal thread, and the connecting rod 5 is in threaded connection with the first rotating shaft 31. The first rotating shaft 31 can be connected with a power source of the antenna lifting mechanism, so that torque transmission is realized, and the barrel 1 is lifted.
In a further improvement, a handle 6 is arranged at one end of the first rotating shaft 31 far away from the barrel 1, and the handle 6 is fixedly connected with the first rotating shaft 31. Torque transmission may be achieved through the handle 6.
Furthermore, the utility model also comprises a second fluted disc 41, the second fluted disc 41 is arranged coaxially with the winding drum 4; the drive unit 3 further comprises a first toothed disc 32, the first toothed disc 32 being arranged on the first rotation shaft 31, the second toothed disc 41 being in mesh with the first toothed disc 32. As can be seen from fig. 2, when the drum 1 is raised, the winding drum 4 and the second toothed plate 41 are both driven by the first toothed plate 32.
In a further improvement, the box body 2 is provided with a second window 22, one end of the steel wire rope is fixedly connected with the winding drum 4, and the other end of the steel wire rope passes through the second window 22, extends into the cylinder body 1 at the outermost side and is fixedly connected with the inner surface of the cylinder body 1 far away from the first rotating shaft 31.
Fig. 2 is combined with fig. 6 to show that the drawing provides an embodiment of the present invention, in the drawing, a combination structure of several cylinders 1 is provided, the cylinder 1 at the outermost side is connected with the steel wire rope wound on the winding drum 4 through the pulley a, the pulley B, the pulley C and the pulley D, when the steel wire rope is pulled, each pulley can change the stress direction, and the adjacent cylinder 1 is lifted or lowered to realize the lifting of the cylinder 1. Further, a pulley E, a pulley F, a pulley G and a pulley H are sequentially arranged on the inner barrel 1, the driven steel wire rope sequentially penetrates through the pulley E, the pulley F, the pulley G and the pulley H and is fixedly connected with the bottom of the outermost barrel 1, and when the outermost barrel 1 goes up and down, the adjacent barrel 1 can support or lower other inner barrels 1, so that the purpose of going up and down together is achieved.
As shown in fig. 2 in combination with fig. 3 and 4, the first rotating shaft 31 is provided with a ratchet wheel 7, and the ratchet wheel 7 is connected with the first rotating shaft 31; a fixing rod 23 is arranged in the box body 2, the fixing rod 23 is fixedly connected with the box body 2, a pawl 24 is arranged at one end, far away from the box body 2, of the fixing rod 23, the pawl 24 is hinged with the fixing rod 23, a tension spring 25 is further arranged on the pawl 24, one end of the tension spring 25 is fixedly connected with the pawl 24, and the other end of the tension spring 25 is fixedly connected with the box body 2; the pawl 24 abuts against the ratchet 7. The ratchet wheel 7 is matched with the pawl 24, so that the purpose of unidirectional rotation can be achieved, and the barrel body 1 can be prevented from accidentally falling. For example, the pawl 7 only allows clockwise rotation of the first shaft 31 when the cartridge 1 is lifted.
The pawl 24 is provided with a shift lever 26, the shift lever 26 is fixedly connected with the pawl 24, the box body 2 is provided with a third window 27, the shift lever 26 penetrates through the third window 27 and extends outwards, and the shift lever 26 is connected with the third window 27 in a sliding mode. The position of the pawl 24 can be adjusted by the shift lever 26 extending out of the third serial port 27, so that the first rotating shaft 31 can rotate clockwise or counterclockwise in a unidirectional manner.
As shown in fig. 5, the first rotating shaft 31 is further provided with a one-way damping unit 8, and the one-way damping unit 8 comprises a first fixing ring 81, a second fixing ring 82, a first gasket 83 and a second gasket 84; the first fixing ring 81 and the second fixing ring 82 are oppositely arranged on the first rotating shaft 31 at two sides of the ratchet 7, and the first fixing ring 81 and the second fixing ring 82 are fixedly connected with the first rotating shaft 31; a first gasket 83 is arranged between the first fixing ring 81 and the ratchet 7, a second gasket 84 is arranged between the ratchet 7 and the second fixing ring 82, and both the first gasket 83 and the second gasket 84 are hinged with the first rotating shaft 31; the first washer 83 is in contact with the ratchet 7 and the compression ring 85, and the second washer 84 is in contact with the ratchet 7 and the second fixing ring 82; the first fixing ring 81 is threadedly connected to the first toothed disc 32. When the barrel 1 descends, under the action of gravity, the first rotating shaft 31 is driven by the second fluted disc 41 to rotate at a high speed, so that the gliding speed of the barrel 1 is reduced for preventing the impact caused by rapid gliding, and the speed of the first rotating shaft 31 is reduced through the one-way damping unit 8. The second gear plate 41 drives the first gear plate 32 to rotate rapidly, and meanwhile, the first gear plate 32 rotates relative to the first fixing ring 81, the first gear plate 32 is tightly attached to the first gasket 83, so that friction is applied to the end face of the ratchet 7, damping is applied to the ratchet 7, the rotating speed of the ratchet 7 is reduced, and the purpose of reducing the sliding speed of the barrel 1 is achieved.
The first fluted disc 32 rotates relative to the first fixing ring 81, and when the cylinder body 1 ascends, the end surface of the first fluted disc 32 is abutted against the end surface of the first fixing ring 81; when the cylinder 1 is lowered, the end surface of the first gear 32 abuts against the end surface of the first pad 83. The first toothed disc 32 has two limit positions corresponding to the rotation limit positions of the first toothed disc 32 on the first fixed ring 81 when the cylinder 1 is raised and the cylinder 1 is lowered, respectively.
The end surfaces of the first gasket 83 and the second gasket 84 are rough surfaces, and the rough surfaces can increase the damping effect. The one-way damping unit 8 further comprises a compression ring 85, the compression ring 85 is rotatably or slidably connected with the first fixing ring 81, and an end surface of the compression ring 85 abuts against the surface of the first fluted disc 32 or the first gasket 83. The stroke of the first fluted disc 32 on the first fixing ring 81 can be shortened by adding the compression ring 85, so that the damping effect is faster involved, the effective time is shortened, and the safety and the reliability of the antenna lifting mechanism are improved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An antenna lifting mechanism comprises a plurality of barrel bodies (1), a box body (2), a driving unit (3) and a winding roller (4), wherein the adjacent barrel bodies (1) are nested and connected in a sliding mode, the box body (2) is fixedly arranged on the barrel body (1) on the outermost side, the driving unit (3) and the winding roller (4) are arranged in the box body (2), and the winding roller (4) is rotatably connected with the box body (2); the driving unit (3) drives the winding roller (4) to rotate; a steel wire rope is wound on the winding drum (4) and is connected with the drum body (1) on the outermost side; the method is characterized in that: still include a connecting rod (5), correspond on box (2) and set up first window (21) that suit with connecting rod (5), the one end and the drive unit (3) threaded connection of connecting rod (5), first window (21) are passed to the other end of connecting rod (5), and drive unit (3) drive connecting rod (5) are along the extending direction linear motion of first window (21).
2. An antenna elevating mechanism as claimed in claim 1, wherein: the lowest point position of the cylinder (1) corresponds to the limit position of one end of the first window (21); the highest position of the rising of each cylinder (1) corresponds to the limit position of the other end of the first window (21).
3. An antenna elevating mechanism as claimed in claim 1, wherein: the driving unit (3) comprises a first rotating shaft (31), and two ends of the first rotating shaft (31) are hinged with the box body (2); the surface of one end, close to the cylinder body (1), of the first rotating shaft (31) is provided with external threads, one end, connected with the first rotating shaft (31), of the connecting rod (5) is provided with internal threads, and the connecting rod (5) is in threaded connection with the first rotating shaft (31).
4. An antenna elevating mechanism as claimed in claim 3, wherein: the winding device also comprises a second fluted disc (41), wherein the second fluted disc (41) is coaxial with the winding drum (4); the drive unit (3) further comprises a first toothed disc (32), the first toothed disc (32) being arranged on the first rotary shaft (31), the second toothed disc (41) being in engagement with the first toothed disc (32).
5. An antenna elevating mechanism as claimed in claim 3, wherein: and a second window (22) is arranged on the box body (2), one end of the steel wire rope is fixedly connected with the winding drum (4), and the other end of the steel wire rope penetrates through the second window (22) and extends into the barrel body (1) on the outermost side and is fixedly connected with the inner surface of the barrel body (1) far away from the first rotating shaft (31).
6. An antenna elevating mechanism as claimed in claim 3, wherein: the first rotating shaft (31) is provided with a ratchet wheel (7), and the ratchet wheel (7) is connected with the first rotating shaft (31); a fixing rod (23) is arranged in the box body (2), the fixing rod (23) is fixedly connected with the box body (2), a pawl (24) is arranged at one end, away from the box body (2), of the fixing rod (23), the pawl (24) is hinged with the fixing rod (23), a tension spring (25) is further arranged on the pawl (24), one end of the tension spring (25) is fixedly connected with the pawl (24), and the other end of the tension spring (25) is fixedly connected with the box body (2); the pawl (24) is abutted against the ratchet wheel (7).
7. An antenna elevating mechanism as claimed in claim 6, wherein: the novel lifting device is characterized in that a shifting rod (26) is arranged on the pawl (24), the shifting rod (26) is fixedly connected with the pawl (24), a third window (27) is arranged on the box body (2), the shifting rod (26) penetrates through the third window (27) and extends outwards, and the shifting rod (26) is connected with the third window (27) in a sliding mode.
8. An antenna elevating mechanism as claimed in claim 6, wherein: the first rotating shaft (31) is also provided with a one-way damping unit (8), and the one-way damping unit (8) comprises a first fixing ring (81), a second fixing ring (82), a first gasket (83) and a second gasket (84); the first fixing ring (81) and the second fixing ring (82) are oppositely arranged on the first rotating shaft (31) at two sides of the ratchet wheel (7), and the first fixing ring (81) and the second fixing ring (82) are fixedly connected with the first rotating shaft (31); a first gasket (83) is arranged between the first fixing ring (81) and the ratchet wheel (7), a second gasket (84) is arranged between the ratchet wheel (7) and the second fixing ring (82), and the first gasket (83) and the second gasket (84) are hinged with the first rotating shaft (31); the first gasket (83) is in contact with the ratchet wheel (7) and the compression ring (85), and the second gasket (84) is in contact with the ratchet wheel (7) and the second fixing ring (82); the first fixing ring (81) is in threaded connection with the first fluted disc (32).
9. An antenna elevating mechanism as claimed in claim 8, wherein: the first fluted disc (32) rotates relative to the first fixing ring (81), and when the cylinder body (1) ascends, the end face of the first fluted disc (32) is propped against the end face of the first fixing ring (81); when the cylinder body (1) descends, the end face of the first fluted disc (32) is abutted against the end face of the first gasket (83).
10. An antenna elevating mechanism as claimed in claim 3, wherein: one end, far away from the barrel (1), of the first rotating shaft (31) is provided with a handle (6), and the handle (6) is fixedly connected with the first rotating shaft (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921111445.1U CN210379386U (en) | 2019-07-16 | 2019-07-16 | Antenna lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921111445.1U CN210379386U (en) | 2019-07-16 | 2019-07-16 | Antenna lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210379386U true CN210379386U (en) | 2020-04-21 |
Family
ID=70271785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921111445.1U Expired - Fee Related CN210379386U (en) | 2019-07-16 | 2019-07-16 | Antenna lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210379386U (en) |
-
2019
- 2019-07-16 CN CN201921111445.1U patent/CN210379386U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 |