CN2521427Y - Automatic locking mechanism between automatic up-down antenna rod connecting rod - Google Patents
Automatic locking mechanism between automatic up-down antenna rod connecting rod Download PDFInfo
- Publication number
- CN2521427Y CN2521427Y CN 01246919 CN01246919U CN2521427Y CN 2521427 Y CN2521427 Y CN 2521427Y CN 01246919 CN01246919 CN 01246919 CN 01246919 U CN01246919 U CN 01246919U CN 2521427 Y CN2521427 Y CN 2521427Y
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- CN
- China
- Prior art keywords
- connecting rod
- automatic
- locking mechanism
- rod
- self
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an automatic locking mechanism between connecting rods of an automatic up-down antenna rod, comprising an upper connecting rod and a lower connecting rod. A sliding cover nut is disposed on the upper connecting rod, and a lower end of the upper connecting rod is connected with a tray on which key beds are uniformly distributed. An upper end of the lower connecting rod is provided with an annular roof board, the inner wall of the annular roof board is equipped with keys corresponding to the key beds on the tray, a key hole is arranged on the rod wall of the upper connecting rod, a self-locking tray or an unlock sideway is installed in the annular roof board body of the lower connecting rod, the sideway is equipped with a spring bolt of which one end is provided with a locking spring, wherein the hole shape of the key hole corresponds to the contour of the spring bolt, and an upper portion of the pore wall and an end portion of the spring bolt body are completely contacted on the inclined surface. Compared with the existing technique, the self-automatic locking mechanism between connecting rods of the antenna rod is relatively obviously improved in operational reliability and in stability, self-locking or unlocking is as convenient as desired, the bias angle of the antenna rod in the height of 12 meters is less than 0.05 degrees, besides, the machining precision requirement is greatly reduced.
Description
Technical field
The utility model belongs to a kind of automatic lifting technical field of bridge joint antenna, i.e. automatic locking mechanism between the automatic lifting mast connecting rod.
Background technique
At present, forms such as that but the automatic lifting mast has is pneumatic, hydraulic pressure, machinery, because the connection that every joint connecting rod of mast is mutual and the imperfection of self-locking mechanism, ubiquity has poor reliability, lifting not steady, the back body of rod swing angle that raises is big, the requirement on machining accuracy height, shortcoming such as complicated operation is loaded down with trivial details.So do not reach the quality requirement of communication.Make the automatic lifting mast can not get popularizing and application.
Summary of the invention
The purpose of this utility model is at above-mentioned the deficiencies in the prior art, and provide automatic locking mechanism between a kind of automatic lifting mast connecting rod, so that improve the reliability of mast when lifting, reach purposes such as lifting is steady, swing angle is little, requirement on machining accuracy is low.
This purpose is achieved in that the automatic locking mechanism between this automatic lifting mast connecting rod, it comprises the joint connecting rod, saves connecting rod down, in last joint connecting rod, slidably nut is arranged, the lower end of last joint connecting rod is connected to pallet, be evenly distributed with keyway on the pallet, there is annular top cover the upper end of saving connecting rod down, its inwall be provided with pallet on the corresponding key of keyway.Be provided with a lockhole on the bar wall of last joint connecting rod, be provided with self-locking or release slideway in the circular top lid of following joint connecting rod, be provided with dead bolt in the slideway, dead bolt one end has lock spring.The hole shape of described lockhole is corresponding with the profile of dead bolt, and the top of hole wall is entirely the inclined-plane with an end of lock tongue body and contacts.Hole wall top bevel angle and lock tongue body end chamfer angle the best are respectively 45 degree.
Automatic locking mechanism between this automatic lifting mast connecting rod possesses automatic locking, auto-unlocking, automatic deviation correction and is connected characteristics such as guiding by triple bond in application.Mast is not more than 0 at swing angle more than 12 meters.05 degree.Improved the reliability of mast when automatic lifting widely.It has, and lifting is steady, swing angle is little, the processing essence requires advantages such as low.
Description of drawings
Following accompanying drawing has provided embodiment of the present utility model
Fig. 1 is the whole external and internal compositions connection diagram of the utility model.
Fig. 2 is that the A-A of Fig. 1 is to sectional drawing.
Fig. 3 is the utility model use principle structural representation.
Embodiment
As shown in Figure 1, 2: the automatic locking mechanism between this automatic lifting mast connecting rod, it comprises joint connecting rod (for tubulose connecting rod) 1, saves connecting rod (being similarly the tubulose connecting rod) 2 down, in last joint connecting rod, slidably nut 3 is arranged, the lower end of last joint connecting rod 1 is connected to pallet 5, be evenly distributed with three keyways 9 on the pallet, there is annular top cover 4 upper end of saving connecting rod 2 down, the inwall of connecting rod 2 be provided with pallet on the corresponding three road keys 8 of keyway.Be provided with a lockhole (lockhole is a square opening) on the bar wall of last joint connecting rod, be provided with self-locking or release slideway in annular top cover 4 bodies of following joint connecting rod, be provided with the dead bolt 6 of a rectangular body in the slideway, dead bolt one end has lock spring 7, and the other end is an angular surface type.The hole shape of described lockhole is corresponding with the profile of dead bolt, and the top of hole wall and the beveled end of lock tongue body are entirely face and contact (be the inclined-plane with inclined-plane contact).Hole wall top bevel angle and lock tongue body end chamfer angle the best are respectively 45 degree.The above parts is metal processing piece.
The working principle of the automatic locking mechanism between this automatic lifting mast connecting rod, as shown in Figure 3, the automatic locking of the upper and lower connecting rod of automatic lifting mast, automatic unlocking action all rely on screw rod 10 drives to go up joint connecting rod moving linearly and finish.Because the effect of three road keys and corresponding three keyways, on can only straight line motion when saving the connecting rod rising.When screw rod 10 is just changeing, on save connecting rod 1 and rise, when having reached the lockhole design attitude, under the effect of spring 7, dead bolt 6 is pushed in the lockhole on the joint connecting rod wall along slideways, finish automatic locking.When screw rod 10 counter-rotating, on save connecting rod 1 and descend, force dead bolt to withdraw from by the effect of lockhole wall chamfered portion radial force.Realize automatic unlocking, the entire antenna bar shrinks.Because the keyway of joint connecting rod inwall three road keys and last joint connecting rod tail end pallet cooperatively interacts down, connecting rod 1 is radially accurately located, accurately self-locking in lifting; Make the requirement on machining accuracy of connecting rod shank inwall significantly reduce.In addition, the annular top cover 4 on last joint connecting rod top reaches down and on the joint connecting rod tail end pallet 5 hold-down ring 11,12,13,14 is housed also, pressing plate 15,16, owing to the link tube body space is adjusted in their effect, but automatic deviation correction when mast is risen, and impel it more steadily to rise.
Claims (3)
1, automatic locking mechanism between a kind of automatic lifting mast connecting rod, it comprises joint connecting rod (1), under save connecting rod (2), slidably nut (3) is arranged in last joint connecting rod, the lower end of last joint connecting rod is connected to pallet (5), be evenly distributed with keyway on the pallet, there is annular top cover (4) upper end of saving connecting rod (2) down, its inwall be provided with pallet (5) on the corresponding key of keyway (8), it is characterized in that on the bar wall of last joint connecting rod (1), being provided with a lockhole, save down in annular top cover (4) body of connecting rod (2) and be provided with self-locking or release slideway, be provided with dead bolt (6) in the slideway, dead bolt one end has lock spring (7).
2, the automatic locking mechanism between automatic lifting mast connecting rod according to claim 1 is characterized in that the profile of the hole shape of described lockhole and dead bolt (6) is corresponding, and the top of hole wall is entirely the inclined-plane with an end of lock tongue body and contacts.
3, the automatic locking mechanism between automatic lifting mast connecting rod according to claim 1 and 2 is characterized in that hole wall top bevel angle and lock tongue body end chamfer angle the best are respectively 45 degree
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01246919 CN2521427Y (en) | 2001-08-13 | 2001-08-13 | Automatic locking mechanism between automatic up-down antenna rod connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01246919 CN2521427Y (en) | 2001-08-13 | 2001-08-13 | Automatic locking mechanism between automatic up-down antenna rod connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2521427Y true CN2521427Y (en) | 2002-11-20 |
Family
ID=33657853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01246919 Expired - Fee Related CN2521427Y (en) | 2001-08-13 | 2001-08-13 | Automatic locking mechanism between automatic up-down antenna rod connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2521427Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555080A (en) * | 2014-12-02 | 2015-04-29 | 唐山轨道客车有限责任公司 | Adjustable support device |
| CN108461890A (en) * | 2018-04-17 | 2018-08-28 | 四川省能源投资集团有限责任公司 | A kind of communication pole and its method of adjustment of conveniently adjusting angle |
-
2001
- 2001-08-13 CN CN 01246919 patent/CN2521427Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555080A (en) * | 2014-12-02 | 2015-04-29 | 唐山轨道客车有限责任公司 | Adjustable support device |
| CN108461890A (en) * | 2018-04-17 | 2018-08-28 | 四川省能源投资集团有限责任公司 | A kind of communication pole and its method of adjustment of conveniently adjusting angle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |