CN103956561B - A kind of elongated rod shape antenna overturn mechanism for Miniature communication car - Google Patents
A kind of elongated rod shape antenna overturn mechanism for Miniature communication car Download PDFInfo
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- CN103956561B CN103956561B CN201410188889.0A CN201410188889A CN103956561B CN 103956561 B CN103956561 B CN 103956561B CN 201410188889 A CN201410188889 A CN 201410188889A CN 103956561 B CN103956561 B CN 103956561B
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Abstract
For an elongated rod shape antenna overturn mechanism for Miniature communication car, comprise lifting bar, upset pedestal, clamping block, upset main shaft, main shaft end cap, antenna fixing holder, antenna fixed plate, elongated rod shape antenna, axle block, plastic bearing, base plane, spring pin, extending shaft, positioning shaft sleeve, latch; The present invention adopts upset pedestal and upset main shaft and extending shaft to replace the elongated rod shape astronomical cycle part of fixed directional in existing solution, achieve the direction conversion of elongated rod shape antenna, the present invention is easy and simple to handle, the mechanism collected after making the elongated rod shape antenna being arranged on Miniature communication car realize 180 �� of upset collections and not need dismounting.
Description
Technical field
The present invention relates to a kind of elongated rod shape antenna overturn mechanism for Miniature communication car, it is applicable to Miniature communication car, belongs to rotatable collection field of antenna.
Background technology
In emergency communication car, except satellite communication antena is installed, lifting bar generally also can be installed, the elongated rod shape antennas such as antenna for base station are lifted to certain altitude to build scene communication network. Because profile nature length and the diameter ratio of shaft-like antenna are big, frangibility, in conventional case, general processing mode makes excessive part in lifting masthead portion, before using shaft-like astronomical cycle is fixing after, then be lifted to eminence, it may also be useful to after need antenna is removed collection, avoid damage, it may also be useful to time complicated operation.
Summary of the invention
The technology of the present invention is dealt with problems: overcome prior art deficiency, it is provided that a kind of elongated rod shape antenna overturn mechanism for Miniature communication car, easy and simple to handle, makes the elongated rod shape antenna being arranged on lifting bar realize 180 �� of upset collections and not need to remove collection.
The technical solution of the present invention: a kind of elongated rod shape antenna overturn mechanism for Miniature communication car, it is characterised in that: comprise lifting bar (1), upset pedestal (2), clamping block (3), upset main shaft (4), main shaft end cap (5), antenna fixing holder (6), antenna fixed plate (7), elongated rod shape antenna (8), axle block (9), plastic bearing (10), base plane (11), spring pin (12), extending shaft (13), positioning shaft sleeve (14), latch (15);
The bottom of upset pedestal (2) is thick wall square tube, the top of lifting bar (1) is provided with thin-walled square tube, the outside surface of the thick wall square tube of the bottom of upset pedestal (2) mates mutually with the internal surface of the top thin-walled square tube of lifting bar (1), clamping block (3) is installed on the top of lifting bar (1) outside surface, will overturn the thick wall square tube of the bottom of pedestal (2) and the top thin-walled square tube clamping of lifting bar (1);
Upset pedestal (2) is thick wall square tube, two parallel planes of upset pedestal (2) sidewall bore two circular holes, two circular holes are connected formation hollow cylinder, two plastic bearings (10) are pressed into the internal surface of hollow cylinder respectively, upset main shaft (4) is inserted in plastic bearing (10), the external diameter of upset main shaft (4) mates mutually with the internal diameter of plastic bearing (10), axle block (9) and positioning shaft sleeve (14) are tightened on the two opposite sides of upper adjacent 2 plastic bearings (10) of upset main shaft (4) by screw thread, with fixing upset main shaft (4) position in the axial direction, positioning shaft sleeve (14) and upset main shaft (4) are drilled with through hole and lower through-hole, and the center of upper through hole and lower through-hole is on the same axis, upper through hole and lower through-hole have chamfering near the outer wall of positioning shaft sleeve (14), one end and the main shaft end cap (5) of upset main shaft (4) are fixed together,
Extending shaft (13) comprises connection portion (1301) and the ring flange (1302) of insertion main shaft, the connection portion (1301) of insertion main shaft is arranged on the side of extending shaft (13), the external diameter of the connection portion (1301) of insertion main shaft mates mutually with the internal diameter of upset main shaft (4), with fixing upset main shaft (4) and extending shaft (13); The outer wall of the connection portion (1301) of insertion main shaft has internal thread hole symmetrical up and down, having unthreaded hole on the outer wall of upset main shaft (4), screw with external thread is threaded through the unthreaded hole on the outer wall of upset main shaft (4) with the internal thread hole on the outer wall of the connection portion (1301) of insertion main shaft;
Base plane (11) is fixed on the stationary platform of top as spring pin (12) of upset pedestal (2), spring pin (12) comprises spring sleeve (20), axis pin of the spring (16), stage clip (19), spring pin handle (18), pad (17), the bottom surface of spring sleeve (20) is fixed in base plane (11), pad (17) is welded on the locating surface (1601) of axis pin of the spring (16), spring pin handle (18) is screwed and is connected to the top of axis pin of the spring (16), stage clip (19) is enclosed within axis pin of the spring (16) outer wall in spring sleeve (20), the external diameter of axis pin of the spring (16) is less than the diameter of through hole and lower through-hole,
Antenna fixing holder (6) is two, one of them antenna fixing holder (6) is screwed on main shaft end cap (5), by antenna fixed plate (7), the shaft-like antenna of a group leader (8) is fixed and clamped on antenna fixing holder (6), another antenna fixing holder (6) is screwed on the ring flange (1302) of extending shaft (13), is fixed by screws on antenna fixing holder (6) by antenna fixed plate (7) by shaft-like for another group leader antenna (8);
Latch (15) comprises lock shaft (21), nut (22) and locknut (23), the adjacent plane of the plane of upset pedestal (2) installation plastic bearing (10) is opened a circular unthreaded hole, the circular internal diameter of unthreaded hole mates mutually with the external diameter of nut (22), nut (22) is identical with the internal diameter of locknut (23), and the inwall of nut (22) and locknut (23) all has internal thread, the outside screw of lock shaft (21) outer wall mates with the internal thread of nut (22) and locknut (23);
When elongated rod shape antenna (8) is positioned at expansion state, the transmitter and receiver that elongated rod shape antenna (8) drives extending shaft (13) and antenna fixing holder (6) rotation to elongated rod shape antenna (8) to be perpendicular to ground and elongated rod shape antenna (8) by upset main shaft (4) points to sky, the stage clip (19) of spring pin (12) is in free state, axis pin of the spring (16) slips on positioning shaft sleeve (14) and upset main shaft in the upper through hole having, by the nut (22) of latch (15) and locknut (23), the end face of the lock shaft (21) of latch (15) is pressed on the outer wall of upset main shaft (4), with the state of further fixed main shaft,
When elongated rod shape antenna (8) is positioned at collecting state, the transmitter and receiver that elongated rod shape antenna (8) drives extending shaft (13) and antenna fixing holder (6) rotation to elongated rod shape antenna (8) to be perpendicular to ground and elongated rod shape antenna (8) by upset main shaft (4) points to ground, the stage clip (19) of spring pin (12) is in free state, axis pin of the spring (16) slips on positioning shaft sleeve (14) and upset main shaft in the lower through-hole having, by the nut (22) of latch (15) and locknut (23), the end face of the lock shaft (21) of latch (15) is pressed on the outer wall of upset main shaft (4), with the state of further fixed main shaft,
When elongated rod shape antenna (8) is from expansion state to collecting state, the stage clip (19) of spring pin (12) is in compressed state, and the sphere end of axis pin of the spring (16) slides at the outer wall of positioning shaft sleeve (14).
The thickness of the thick wall square tube of the bottom of described upset pedestal (2) is 6��8 millimeters.
The thickness of the thin-walled square tube that the top of described lifting bar (1) is provided with is 4��6 millimeters.
Described two circular holes bored in two parallel planes of upset pedestal (2) sidewall are of a size of diameter 35��45 millimeters.
Described positioning shaft sleeve (14) and upset main shaft (4) are drilled with through hole and lower through-hole is 45��60 degree near the chamfer angle of the outer wall of positioning shaft sleeve (14).
The external diameter of described axis pin of the spring (16) 0.5mm less of the diameter of upper through hole and lower through-hole.
The present invention compared with prior art useful effect be:
(1) the present invention adopts upset pedestal and trip shaft to replace the shaft-like astronomical cycle part of fixed directional in existing solution, it is achieved that the direction conversion of shaft-like antenna.
(2) 1 antenna fixing holder has respectively been installed at the two ends of trip shaft by mechanism of the present invention, it provides the installation position of many shaft-like antennas.
(3) the present invention uses plastic bearing can alleviate the weight of whole mechanism, little relative to tradition ball bearing volume, and the mechanical workout for plastic bearing open holes requires low, low for the dimensional precision of outer wall of upset main shaft and the requirement of roughness.
(4) the upset main shaft in the present invention is hollow, tubulose section bar can be used to process, alleviate the weight of mechanism, and tubulose section bar uses extensively simultaneously, is easy to selection.
(5) the upper through hole being drilled with in the positioning shaft sleeve (14) of the present invention and upset main shaft (4) and the chamfering of lower through-hole make in the chamfering that the sphere end of axis pin of the spring (16) is easy to slide into through hole and lower through-hole, and guarantee that elongated rod shape antenna can not be too fast because of rotation, make axis pin of the spring (16) miss through hole or lower through-hole, cause stock antenna to collide with Miniature communication car and contact damage.
(6) gap of axis pin of the spring of the present invention and upper through hole or lower through-hole overturns main shaft and waves by a small margin after upset main shaft 4 upset can be caused to put in place, cause elongated rod shape antenna that the shake of bullet by a relatively large margin occurs, arrange latch elimination upset main shaft to wave by a small margin, to avoid elongated rod shape antenna generation bullet to shake.
(7) antenna fixing holder (6) can provide multiple elongated rod shape astronomical cycle position.
(8) base plane (11) not only can mounting spring pin, also can be other equipment provide erecting stage.
Accompanying drawing explanation
Fig. 1 is elongated rod shape of the present invention antenna overturn mechanism front section view;
Fig. 2 is elongated rod shape of the present invention antenna overturn mechanism Antenna Operation state left view;
Fig. 3 is elongated rod shape of the present invention antenna overturn mechanism radial cross-section;
Fig. 4 is elongated rod shape of the present invention antenna overturn mechanism antenna collecting state sketch;
Fig. 5 is that the present invention overturns pedestal radial cross-section;
Fig. 6 is spring pin structure iron of the present invention;
Fig. 7 is latch structure iron of the present invention;
Fig. 8 is the extending shaft diagrammatic cross-section of the present invention.
Embodiment
The basic ideas of the present invention: when considering that elongated rod shape astronomical cycle is on the lifting bar of Miniature communication car; add whole overall height degree and have impact on the property passed through; design a kind of foldable elongated rod shape antenna overturn mechanism; during working order; elongated rod shape antenna is launched end and turns to sky; after finishing using; elongated rod shape antenna is launched 180 degree, end turn to; point to ground; now elongated rod shape antenna does not become whole car vertex; do not affect whole car by property, protect elongated rod shape antenna itself simultaneously yet, reduce the probability done something in disregard of obstacles and relate to and fracture.
Below in conjunction with accompanying drawing, the present invention is described in detail, as shown in Figure 1 for an elongated rod shape antenna overturn mechanism for Miniature communication car, comprise lifting bar 1, upset pedestal 2, clamping block 3, upset main shaft 4, main shaft end cap 5, antenna fixing holder 6, antenna fixed plate 7, elongated rod shape antenna 8, axle block 9, plastic bearing 10, base plane 11, spring pin 12, extending shaft 13, positioning shaft sleeve 14, latch 15;
As shown in Fig. 1,2,3,5, metal thick wall (6��8 millimeters) square tube of 74 millimeters that to be external diameter be in the bottom of upset pedestal 2, the top of lifting bar 1 is provided with thin-walled square tube, the outside surface of the thick wall square tube of the bottom of upset pedestal 2 mates mutually with the internal surface of the top thin-walled square tube (4��6 millimeters) of lifting bar 1, by in the top thin-walled square tube of the thick wall square tube insertion lifting bar 1 of the bottom of upset pedestal 2, clamping block 3 is installed on the top of lifting bar 1 outside surface, screw the screw on clamping block 3, by frictional force, upset pedestal 2 and lifting bar 1 are linked together;
As shown in Figure 1, 2, 3, upset pedestal 2 is metal thick wall square tube, two parallel planes of upset pedestal 2 sidewall once bore two circular holes (diameter 35��45 millimeters), two circular holes are connected formation hollow cylinder, and two plastic bearings 10 are pressed into the internal surface of hollow cylinder respectively; Being inserted in plastic bearing 10 by upset main shaft 4, the external diameter of upset main shaft 4 mates mutually with the internal diameter of plastic bearing 10, and axle block 9 and positioning shaft sleeve 14 are tightened on upset main shaft 4 by dog screw, in order to positioning turning main shaft 4 position in the axial direction; The end face of axle block 9 adjacent plastic bearing 10 end face, the end face of the end face of positioning shaft sleeve 14 another plastic bearing 10 adjacent; Being drilled with through hole and lower through-hole on the sidewall of the sidewall of positioning shaft sleeve 14 and upset main shaft 4, on the same axis, upper through hole and lower through-hole have 45��60 degree of chamferings near the outer wall side ploughshare of positioning shaft sleeve 14 at the center of upper through hole and lower through-hole; One end and the main shaft end cap 5 of upset main shaft 4 are fixed together, the excessive part that main shaft end cap 5 is connected with upset main shaft 4 as antenna fixing holder 6;
Extending shaft 13 comprises connection portion 1301 and the ring flange 1302 of insertion upset main shaft 4, as shown in Figure 8, the connection portion 1301 of insertion upset main shaft 4 is arranged on the side of extending shaft 13, the external diameter of connection portion 1301 mates mutually with the internal diameter of upset main shaft 4, the connection portion 1301 of extending shaft 13 is inserted upset main shaft 4, extending shaft 13 inserts and has internal thread hole symmetrical up and down on the outer wall of the connection portion 1301 of main shaft, the outer wall of upset main shaft 4 has unthreaded hole (hole of unthreaded hole and inner wall smooth), screw with external thread is threaded through the unthreaded hole on the outer wall of upset main shaft 4 with the internal thread hole on the outer wall of the connection portion 1301 of insertion main shaft, thus upset main shaft 4 and extending shaft 13 are linked together,
Base plane 11 is weldingly fixed on the stationary platform of top as spring pin 12 of upset pedestal 2. As shown in Figure 6, spring pin 12 comprises spring sleeve 20, axis pin of the spring 16, stage clip 19, spring pin handle 18, pad 17. Pad 17 is welded on the locating surface 1601 of axis pin of the spring 16; Stage clip 19 is enclosed within axis pin of the spring 16 outer wall in spring sleeve 20, the external diameter of axis pin of the spring 16 0.5mm less of the diameter of upper through hole and lower through-hole; Being fixed in base plane 11 by the bottom surface of spring sleeve 20, being finally screwed by spring pin handle 18 is connected to the top of axis pin of the spring 16. When upset main shaft 4 transfers collecting state to from working order, axis pin of the spring 16 is mentioned from the upper through hole overturning main shaft 4, rotate upset main shaft 4, trip spring bearing pin 16, now the sphere end of axis pin of the spring 16 slides at the outer wall of positioning shaft sleeve 14, and stage clip is in compressed state, when the position that lower through-hole rotates to axis pin of the spring 16 is coaxial overturn on main shaft 4, axis pin of the spring 16 slips into the pilot hole on upset main shaft 4 because of the pressure of stage clip, and now stage clip is in free state;
Antenna fixing holder 6 is two pieces, one of them antenna fixing holder 6 is screwed on main shaft end cap 5, by one group of antenna fixed plate 7, a shaft-like antenna 8 of group leader is fixed and clamped on antenna fixing holder 6, another antenna fixing holder 6 is screwed on the ring flange 1302 of extending shaft 13, is fixed by screws on antenna fixing holder 6 by another group antenna fixed plate 7 by shaft-like for another group leader antenna 8;
Because the upper through hole on the sidewall of axis pin of the spring 16 and upset main shaft 4 and lower logical gap occur to wave by a small margin after upset main shaft 4 upset can be caused to put in place, in order to address this problem, install again latch 15 additional. As shown in Figure 7, latch 15 comprises lock shaft 21, nut 22 and locknut 23. Install at upset pedestal 2 plastic bearing 10 plane adjacent plane on open a circular unthreaded hole, the axis of circular unthreaded hole is vertical with the axes intersect of upset main shaft 4, the circular internal diameter of unthreaded hole mates mutually with the external diameter of nut 22, nut 22 is welded on this circular unthreaded hole, nut 22 is identical with the internal diameter of locknut 23, and the inwall of nut 22 and locknut 23 all has internal thread, the outside screw of lock shaft 21 outer wall mates with the internal thread of nut 22 and locknut 23; Locknut 23 is screwed in lock shaft 21, then lock shaft 21 is screwed in locknut 23, it may also be useful to time loosen locknut 23 can turn lock shaft 21, compress or loosen upset main shaft 4;
As shown in Figure 1, when elongated rod shape antenna 8 is positioned at expansion state, elongated rod shape antenna 8 by upset main shaft 4 drive extending shaft 13 and antenna fixing holder 6 rotate to elongated rod shape antenna 8 be perpendicular to ground and elongated rod shape antenna 8 transmitter and receiver point to sky state, the stage clip 19 of spring pin 12 is in free state, axis pin of the spring 16 slips on positioning shaft sleeve 14 and upset main shaft in the upper through hole having, by the nut 22 of latch 15 and locknut 23, the end face of the lock shaft 21 of latch 15 is pressed on the outer wall of upset main shaft 4, with the state of further fixed main shaft;
As shown in Figure 4, when elongated rod shape antenna 8 is positioned at collecting state, elongated rod shape antenna 8 by upset main shaft 4 drive extending shaft 13 and antenna fixing holder 6 rotate to elongated rod shape antenna 8 be perpendicular to ground and elongated rod shape antenna 8 transmitter and receiver point to ground, the stage clip 19 of spring pin 12 is in free state, axis pin of the spring 16 slips on positioning shaft sleeve 14 and upset main shaft in the lower through-hole having, by the nut 22 of latch 15 and locknut 23, the end face of the lock shaft 21 of latch 15 is pressed on the outer wall of upset main shaft 4, with the state of further fixed main shaft;
The unexposed technology of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (6)
1. the elongated rod shape antenna overturn mechanism for Miniature communication car, it is characterised in that: comprise lifting bar (1), upset pedestal (2), clamping block (3), upset main shaft (4), main shaft end cap (5), antenna fixing holder (6), antenna fixed plate (7), elongated rod shape antenna (8), axle block (9), plastic bearing (10), base plane (11), spring pin (12), extending shaft (13), positioning shaft sleeve (14), latch (15);
Upset pedestal (2) is thick wall square tube, the top of lifting bar (1) is provided with thin-walled square tube, the outside surface of the thick wall square tube of the bottom of upset pedestal (2) mates mutually with the internal surface of the top thin-walled square tube of lifting bar (1), clamping block (3) is installed on the top of lifting bar (1) outside surface, will overturn the thick wall square tube of the bottom of pedestal (2) and the top thin-walled square tube clamping of lifting bar (1);
Two parallel planes of upset pedestal (2) sidewall bore two circular holes, two circular holes are connected formation hollow cylinder, two plastic bearings (10) are pressed into the internal surface of hollow cylinder respectively, upset main shaft (4) is inserted in plastic bearing (10), the external diameter of upset main shaft (4) mates mutually with the internal diameter of plastic bearing (10), axle block (9) and positioning shaft sleeve (14) are tightened on the two opposite sides of upset main shaft (4) upper adjacent two plastic bearings (10) by screw thread, with fixing upset main shaft (4) position in the axial direction, positioning shaft sleeve (14) and upset main shaft (4) are drilled with through hole and lower through-hole, and the center of upper through hole and lower through-hole is on the same axis, upper through hole and lower through-hole have chamfering near the outer wall of positioning shaft sleeve (14), one end and the main shaft end cap (5) of upset main shaft (4) are fixed together,
Extending shaft (13) comprises connection portion (1301) and the ring flange (1302) of insertion main shaft, the connection portion (1301) of insertion main shaft is arranged on the side of extending shaft (13), the external diameter of the connection portion (1301) of insertion main shaft mates mutually with the internal diameter of upset main shaft (4), with fixing upset main shaft (4) and extending shaft (13); The outer wall of the connection portion (1301) of insertion main shaft has internal thread hole symmetrical up and down, having unthreaded hole on the outer wall of upset main shaft (4), screw with external thread is threaded through the unthreaded hole on the outer wall of upset main shaft (4) with the internal thread hole on the outer wall of the connection portion (1301) of insertion main shaft;
Base plane (11) is fixed on the stationary platform of top as spring pin (12) of upset pedestal (2), spring pin (12) comprises spring sleeve (20), axis pin of the spring (16), stage clip (19), spring pin handle (18), pad (17), the bottom surface of spring sleeve (20) is fixed in base plane (11), pad (17) is welded on the locating surface (1601) of axis pin of the spring (16), spring pin handle (18) is screwed and is connected to the top of axis pin of the spring (16), stage clip (19) is enclosed within axis pin of the spring (16) outer wall in spring sleeve (20), the external diameter of axis pin of the spring (16) is less than the diameter of through hole and lower through-hole,
Antenna fixing holder (6) is two, one of them antenna fixing holder (6) is screwed on main shaft end cap (5), by antenna fixed plate (7), the shaft-like antenna of a group leader (8) is fixed and clamped on antenna fixing holder (6), another antenna fixing holder (6) is screwed on the ring flange (1302) of extending shaft (13), is fixed by screws on antenna fixing holder (6) by antenna fixed plate (7) by shaft-like for another group leader antenna (8);
Latch (15) comprises lock shaft (21), nut (22) and locknut (23), the adjacent plane of the plane of upset pedestal (2) installation plastic bearing (10) is opened a circular unthreaded hole, the circular internal diameter of unthreaded hole mates mutually with the external diameter of nut (22), nut (22) is identical with the internal diameter of locknut (23), and the inwall of nut (22) and locknut (23) all has internal thread, the outside screw of lock shaft (21) outer wall mates with the internal thread of nut (22) and locknut (23);
When elongated rod shape antenna (8) is positioned at expansion state, the transmitter and receiver that elongated rod shape antenna (8) drives extending shaft (13) and antenna fixing holder (6) rotation to elongated rod shape antenna (8) to be perpendicular to ground and elongated rod shape antenna (8) by upset main shaft (4) points to sky, the stage clip (19) of spring pin (12) is in free state, axis pin of the spring (16) slips on positioning shaft sleeve (14) and upset main shaft in the upper through hole having, by the nut (22) of latch (15) and locknut (23), the end face of the lock shaft (21) of latch (15) is pressed on the outer wall of upset main shaft (4), with the state of further fixed main shaft,
When elongated rod shape antenna (8) is positioned at collecting state, the transmitter and receiver that elongated rod shape antenna (8) drives extending shaft (13) and antenna fixing holder (6) rotation to elongated rod shape antenna (8) to be perpendicular to ground and elongated rod shape antenna (8) by upset main shaft (4) points to ground, the stage clip (19) of spring pin (12) is in free state, axis pin of the spring (16) slips on positioning shaft sleeve (14) and upset main shaft in the lower through-hole having, by the nut (22) of latch (15) and locknut (23), the end face of the lock shaft (21) of latch (15) is pressed on the outer wall of upset main shaft (4), with the state of further fixed main shaft,
When elongated rod shape antenna (8) is from expansion state to collecting state, the stage clip (19) of spring pin (12) is in compressed state, and the sphere end of axis pin of the spring (16) slides at the outer wall of positioning shaft sleeve (14).
2. a kind of elongated rod shape antenna overturn mechanism for Miniature communication car according to claim 1, it is characterised in that: the thickness of the thick wall square tube of the bottom of described upset pedestal (2) is 6��8 millimeters.
3. a kind of elongated rod shape antenna overturn mechanism for Miniature communication car according to claim 1, it is characterised in that: the thickness of the thin-walled square tube that the top of described lifting bar (1) is provided with is 4��6 millimeters.
4. a kind of elongated rod shape antenna overturn mechanism for Miniature communication car according to claim 1, it is characterised in that: described two circular holes bored in two parallel planes of upset pedestal (2) sidewall are of a size of diameter 35��45 millimeters.
5. a kind of elongated rod shape antenna overturn mechanism for Miniature communication car according to claim 1, it is characterized in that: described positioning shaft sleeve (14) and upset main shaft (4) are drilled with through hole and lower through-hole, on this, through hole and lower through-hole have chamfering near the outer wall of positioning shaft sleeve (14), and this chamfer angle is 45��60 degree.
6. a kind of elongated rod shape antenna overturn mechanism for Miniature communication car according to claim 1, it is characterised in that: the external diameter of described axis pin of the spring (16) 0.5mm less of the diameter of upper through hole and lower through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410188889.0A CN103956561B (en) | 2014-05-06 | 2014-05-06 | A kind of elongated rod shape antenna overturn mechanism for Miniature communication car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410188889.0A CN103956561B (en) | 2014-05-06 | 2014-05-06 | A kind of elongated rod shape antenna overturn mechanism for Miniature communication car |
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| CN103956561A CN103956561A (en) | 2014-07-30 |
| CN103956561B true CN103956561B (en) | 2016-06-01 |
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| CN201410188889.0A Active CN103956561B (en) | 2014-05-06 | 2014-05-06 | A kind of elongated rod shape antenna overturn mechanism for Miniature communication car |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104124502A (en) * | 2014-08-04 | 2014-10-29 | 江苏中寰卫星导航通信有限公司 | Rotation mechanism for satellite antenna |
| CN105048056B (en) * | 2015-07-22 | 2017-09-29 | 重庆金冠汽车制造股份有限公司 | C/G networks detect antenna lifting turning mechanism |
| CN108054138B (en) * | 2017-12-14 | 2020-06-19 | 中国电子科技集团公司第四十一研究所 | Be used for RCS test antenna polarization quick adjustment device |
| CN109888451B (en) * | 2019-04-01 | 2021-03-02 | 重庆彬田科技有限公司 | Multi-system composite double-antenna single-mast tower top mechanism |
| CN114354265B (en) * | 2022-01-10 | 2023-11-07 | 上海海洋大学 | Long column gravity sampler capable of moving out turnover mechanism |
| CN115258051B (en) * | 2022-08-30 | 2023-12-22 | 南通市华阳铝制品有限公司 | Yacht positioner |
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| CN201466206U (en) * | 2009-04-08 | 2010-05-12 | 镇江康飞机器制造有限公司 | Vehicle-mounted omnidirectional antenna take-up and pay-off mechanism |
| CN202888390U (en) * | 2012-09-27 | 2013-04-17 | 苏州华电电气股份有限公司 | Lodging-type antenna of communication command vehicle |
| CN203415674U (en) * | 2013-06-29 | 2014-01-29 | 也翔国际股份有限公司 | Foldable construction of satellite antenna receiving rod |
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