CN209183715U - The transmission device and its irreversible control of antenna for base station, lower decline angle - Google Patents
The transmission device and its irreversible control of antenna for base station, lower decline angle Download PDFInfo
- Publication number
- CN209183715U CN209183715U CN201822260878.5U CN201822260878U CN209183715U CN 209183715 U CN209183715 U CN 209183715U CN 201822260878 U CN201822260878 U CN 201822260878U CN 209183715 U CN209183715 U CN 209183715U
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- ratchet
- pawl
- irreversible control
- angle
- mating surface
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Abstract
The utility model discloses a kind of antenna for base station, the transmission device and its irreversible control of lower decline angle, the irreversible control includes mounting base, the ratchet being rotatably set in the mounting base and is provided at circumferentially spaced at least two pawls along the outer of the ratchet, the pawl can elastic reset install in mounting base and can be with the ratchet detent fit；When at least one described pawl and when the ratchet detent fit, at least one described pawl is not with the ratchet detent fit, and the ratchet is all the same with the maximum angle of rotation needed for the pawl detent fit every time.The irreversible control can effectively improve stop series, reduce the stepping angle of irreversible control in the case where not increasing size and reducing the intensity of the ratchet gear teeth.The transmission device of the lower decline angle uses above-mentioned irreversible control.The antenna for base station uses the transmission device of lower decline angle.
Description
Technical field
The utility model relates to antenna technical fields, more particularly to a kind of antenna for base station, the transmission device of lower decline angle
And its irreversible control.
Background technique
Electricity is adjusted in antenna for base station, and transmission device is important component, and the structure and reliability to product play extremely important
Effect, the transmission accuracy of transmission device directly determines the degree of regulation of phase shifter.Transmission device generally uses Gear Planet Transmission
Mechanism selects to engage different output gears by the revolution of planetary gear, unidirectionally controlled using being made of click etc.
Mechanism, so that planetary gear makees revolution motion toward a direction.Therefore the step value of irreversible control is smaller, then transmission device
Transmission accuracy is higher
And traditional irreversible control, Yao Tigao stop series, reduce the stepping angle of irreversible control, often passes through increasing
The number of teeth of ratchet is added to realize.But this mode or the oversized of ratchet is caused, cause transmission device volume excessive, be unfavorable for
The miniaturization of antenna for base station；It causes the gear teeth of ratchet excessively weak, influences irreversible control service life, reduce
The reliability of transmission device.
Utility model content
Based on this, it is necessary to provide the transmission device and its irreversible control of a kind of antenna for base station, lower decline angle.The list
To control mechanism in the case where not increasing size and reducing the intensity of the ratchet gear teeth, stop series can be effectively improved, is reduced
The stepping angle of irreversible control.The transmission device of the lower decline angle uses above-mentioned irreversible control, can pass meeting
Under the premise of dynamic reliability, transmission accuracy is improved.The antenna for base station uses the transmission device of lower decline angle, has higher tune
Precision is saved, also can satisfy the needs of antenna for base station miniaturization.
Its technical solution is as follows:
On the one hand, the application provides a kind of irreversible control, including mounting base, is rotatably set in the mounting base
Ratchet and be provided at circumferentially spaced at least two pawls along the outer of the ratchet, the pawl can elastic reset install in peace
And it can be with the ratchet detent fit on dress seat；When at least one described pawl and the ratchet detent fit, at least one
A pawl not with the ratchet detent fit, and the ratchet maximum with rotation needed for the pawl detent fit every time
Angle is all the same.
In use, when ratchet is rotated along the first direction of rotation (as clockwise), pawl exists above-mentioned irreversible control
Mounting base is rotated and is slipped over along ratchet；When the opposite direction of ratchet along the first direction of rotation rotates (such as rotating counterclockwise), this
When at least one pawl stick into the tooth socket of ratchet, and then prevent ratchet wheel, realize the effect of single-direction transmission.Because installing
At least two pawls are arranged on seat, and successively the required angle rotated of mesh ratchet gear is all the same for realization pawl.So, it is assumed that every time
Only one pawl and ratchet detent fit, and have N number of pawl, when the 1st pawl, it is at a fully engaged enter ratchet；At this point,
2nd pawl apart from it is at a fully engaged enter ratchet there are also the distance of 1/N tooth, the 3rd pawl apart from it is at a fully engaged enter ratchet also
The distance ... of 2/N tooth is so that the maximum reverse angle of revolution of the first direction of rotation of irreversible control is reduced to single ratchet
When 1/N.In turn, which, can be effective in the case where not increasing size and reducing the intensity of the ratchet gear teeth
Stop series is improved, the stepping angle of irreversible control is reduced.
Technical solution is illustrated further below:
The center of rotation of all pawls is disposed in an evenly spaced relation on same circumference in one of the embodiments, and
The radius of gyration of all pawls is all the same.
Return springs are equipped between the pawl and the mounting base in one of the embodiments, so that the pawl
Can automatically with ratchet detent fit.
The pawl is equipped with the end that compresses matched with the gear teeth of the ratchet in one of the embodiments, described to support
The return springs are equipped between pressure side and the mounting base.
The mounting base is equipped with the first protrusion protruded towards the ratchet in one of the embodiments, described to compress
End is equipped with second protrusion opposite with first protrusion, and the return springs are reset spring, and its both ends is arranged respectively
In in first protrusion and second protrusion.
Adjacent the first mating surface and the are equipped between the gear teeth of the two neighboring ratchet in one of the embodiments,
Two mating surfaces, and first mating surface and the second mating surface setting at an acute angle, the pawl is equipped with matches with described first
Conjunction face compatible first compresses face and compatible with second mating surface second compresses face.
First mating surface includes the first inclined-plane and sets in obtuse angle with first inclined-plane in one of the embodiments,
The second inclined-plane set, second inclined-plane are docked with the second mating surface arc.
The pawl includes multiple in one of the embodiments, and all pawls can with circuiting sequentially with institute
State ratchet detent fit.
On the other hand, present invention also provides a kind of transmission device of lower decline angle, including above-mentioned irreversible control,
It further include planetary gear mechanism, the planetary gear mechanism includes fixed axis gear and the planetary gear that is meshed with the fixed axis gear,
The fixed axis gear is connect with the coaxial ratchet Synchronous Transmission.
The transmission device of above-mentioned lower decline angle in use, the fixed axis gear is connect with the coaxial ratchet Synchronous Transmission,
After the reversed turning angle of ratchet exponentially reduces, the revolution precision for the planetary gear being meshed with fixed axis gear just can be exponentially
It improves, can finally double up the transmission accuracy of transmission device.The transmission device of such lower decline angle uses above-mentioned list
To control mechanism, transmission accuracy can be improved under the premise of meeting reliable transmission.
On the other hand, present invention also provides a kind of antenna for base station, the transmission device including above-mentioned lower decline angle.The base
Station antenna uses the transmission device of lower decline angle, has higher degree of regulation, also can satisfy antenna for base station miniaturization hair
The needs of exhibition.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the irreversible control in an embodiment；
Fig. 2 is the partial structurtes enlarged diagram of irreversible control shown in Fig. 1；
Fig. 3 is the partial structural diagram of the transmission device of lower decline angle shown in an embodiment.
Description of symbols:
100, irreversible control, 110, mounting base, the 112, first protrusion, 120, ratchet, the 122, first mating surface, 102,
First inclined-plane, the 104, second inclined-plane, the 124, second mating surface, 130, pawl, 132, compress end, the 134, second protrusion, 136, the
One compresses face, and 138, second compresses face, 140, return springs, 200, planetary gear mechanism, 210, fixed axis gear, 220, planet tooth
Wheel.
Specific embodiment
It is below in conjunction with attached drawing and specifically real for the purpose of this utility model, technical solution and advantage is more clearly understood
Mode is applied, the utility model is described in further detail.It should be understood that the specific embodiments described herein
Only to explain the utility model, the protection scope of the utility model is not limited.
It should be noted that when element is referred to as " being fixed on ", " being set to ", " being fixedly arranged on " or " install in " another yuan
Part, it can directly on the other element or there may also be elements placed in the middle.When an element is considered as " connection "
Another element, it can be directly to another element or may be simultaneously present centering elements.Further, when one
A element is considered as " transmission connection " another element, and the two can be the fixation of detachable connection method, can also can not
The fixation of dismantling connection can be realized power transmitting, such as is socketed, clamping, is integrally formed fixed, welding, in existing skill
It may be implemented in art, it is no longer burdensome herein.When the ideal that element and another element are mutually perpendicular to or both near normal refers to
State is vertical, but the influence because manufacturing and assembling, and there may be certain vertical errors.Term as used herein " is hung down
It is straight ", " horizontal ", "left", "right" and similar statement for illustrative purposes only, be not offered as being uniquely to implement
Mode.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet
Include any and all combinations of one or more related listed items.
" first ", " second " involved in the utility model do not represent specific quantity and sequence, are only used for title
Differentiation.
As shown in Figure 1, providing a kind of irreversible control 100, including mounting base 110, rotatably setting in the present embodiment
At least two pawls 130 are provided at circumferentially spaced in the ratchet 120 in mounting base 110 and along the outer of ratchet 120, pawl 130 can
Elastic reset is installed in mounting base 110 and can be with 120 detent fit of ratchet；When at least one pawl 130 stops with ratchet 120
When dynamic cooperation, at least one pawl 130 not with 120 detent fit of ratchet, and ratchet 120 every time with 130 detent fit of pawl
The maximum angle of required rotation is all the same.
Above-mentioned irreversible control 100 is rotated along the first direction of rotation in use, working as ratchet 120 (as clockwise),
Pawl 130 is rotated in mounting base 110 and is slipped over along ratchet 120；When the opposite direction rotation of ratchet 120 along the first direction of rotation
When (such as rotating counterclockwise), at least one pawl 130 is sticked into the tooth socket of ratchet 120 at this time, and then prevents 120 turns of ratchet
It is dynamic, realize the effect of single-direction transmission.Because arranging at least two pawls 130 in mounting base 110, and realize that pawl 130 is successively nibbled
It is all the same to close the angle rotated needed for ratchet 120.So, it is assumed that only one each pawl 130 and 120 detent fit of ratchet,
And have N number of pawl 130, when the 1st pawl 130, it is at a fully engaged enter ratchet 120；At this point, the 2nd pawl 130 apart from nibbling completely
Be incorporated into distance of the ratchet 120 there are also 1/N tooth, the 3rd pawl 130 apart from it is at a fully engaged enter the also 2/N tooth of ratchet 120 away from
From ... so that the 1/N when maximum reverse angle of revolution of irreversible control 100 is reduced to single ratchet.In turn, the unidirectional control
Mechanism 100 processed can effectively improve stop series, subtract in the case where not increasing size and reducing the intensity of 120 gear teeth of ratchet
The stepping angle of small irreversible control 100.
For example, as shown in Figures 1 and 3, there are three pawl 130, only one each pawl 130 is matched with 120 stop of ratchet
It closes.At this point, when the 1st pawl 130, it is at a fully engaged enter ratchet 120；2nd pawl 130 apart from it is at a fully engaged enter ratchet 120
There are also 1/3 tooth distance, the 3rd pawl 130 apart from it is at a fully engaged enter ratchet 120 there are also 2/3 tooth distance so that unidirectionally
The maximum of first direction of rotation of control mechanism 100 (the as maximum reverse angle of revolution of the first direction of rotation of ratchet 120) is anti-
1/3 when being reduced to single ratchet to angle of revolution.In turn, which is not increasing size and is reducing ratchet 120
In the case where the intensity of the gear teeth, stop series can be effectively improved, reduces the stepping angle of irreversible control 100.
Based on the above embodiment, it is possible to understand that " the maximum with rotation needed for 130 detent fit of pawl every time of ratchet 120
Angle is all the same " it is the opposite direction rotation of ratchet 120 along the first direction of rotation, at this time ratchet 120 and each 130 stop of pawl
Rotation maximum reverse angle of revolution needed for cooperation is all the same.
As shown in figure 3, based on any of the above embodiments, in an embodiment, the center of rotation of all pawls 130 is equal
It is even to be arranged at intervals on same circumference, and the radius of gyration of all pawls 130 is all the same.So arrangement enables to every time only
There are a pawl 130 and 120 detent fit of ratchet, and the maximum angular with rotation needed for 130 detent fit of pawl every time of ratchet 120
It spends all the same；It is easy to be manufactured in production line.
It of courses, in other embodiments, above-mentioned purpose also may be implemented.
Meanwhile in other embodiments, every time with the pawl 130 of 120 detent fit of ratchet be 2,3 etc., so
The uniformity of 120 stress of ratchet can be improved.
As shown in Figures 1 and 2, based on any of the above embodiments, in an embodiment, pawl 130 and mounting base 110
Between be equipped with return springs 140, enable the pawl 130 automatically with 120 detent fit of ratchet.In this way, utilizing the reset
Elastic component 140 enables the pawl 130 to automatically reset, and with 120 detent fit of ratchet, convenient for it is automatic realize pawl 130 with
Ratchet 120 turns to stop.
As shown in Figure 1, further, in an embodiment, pawl 130 is equipped with and compresses with what the gear teeth of ratchet 120 matched
End 132 compresses and is equipped with return springs 140 between end 132 and mounting base 110.In this way, by return springs 140 be set to
Pressure side 132, so that the reset force of pawl 130 is stronger, it is relatively reliable with the detent fit of ratchet 120.
As shown in Figures 1 and 2, further, in an embodiment, mounting base 110 is equipped with the protruded towards ratchet 120
One protrusion 112, compress end 132 be equipped with first raised 112 the second opposite protrusions 134, return springs 140 are to reset bullet
Spring, and its both ends is sheathed on respectively in the first protrusion 112 and the second protrusion 134.Above structure, it is easy for installation, and structure is reliable.
It of courses, in other embodiments, which can be torsional spring, Flexible Reset silica gel, reseting shrapnel
Deng specific mounting means can be realized in the prior art, be considered to be the technical solution being equal with the application.
As shown in Fig. 2, based on any of the above embodiments, in an embodiment, the gear teeth of two neighboring ratchet 120 it
Between be equipped with adjacent the first mating surface 122 and the second mating surface 124, and the first mating surface 122 and the second mating surface 124 are at an acute angle
Setting, pawl 130, which is equipped with, to be compressed face 136 with the first mating surface 122 compatible first and fits with 124 phase of the second mating surface
Second matched compresses face 138.In this way, when being matched convenient for pawl 130 with the gear teeth of ratchet 120, using the first mating surface 122 and
First, which compresses the cooperation in face 136 and the second mating surface 124 and second, compresses the cooperation in face 138, so that pawl 130 and ratchet 120
Ratchet between be more uniformly stressed.Acquiescently, which is the angle greater than zero degree and less than 90 degree.
Further, in an embodiment, the first mating surface 122 include the first inclined-plane 102 and with the first inclined-plane 102 in obtuse angle
The second inclined-plane 104 being arranged, the second inclined-plane 104 are docked with 124 arc of the second mating surface.Such structure, so that pawl 130 and spine
When taking turns 120 detent fit, the end of pawl 130 is plugged to the inside of ratchet 120, when avoiding stress excessive, the gear teeth of ratchet 120
Fracture is damaged.Acquiescently, which is the angle greater than 90 degree and less than 180 degree.
Based on any of the above embodiments, in an embodiment, pawl 130 includes multiple, and all pawls 130 can
Circuit sequentially with 120 detent fit of ratchet.In this way, reducing this irreversible control 100 convenient for further increasing stop series
Stepping angle.
As shown in figure 3, a kind of transmission device of lower decline angle is additionally provided in an embodiment, including above-mentioned unidirectional control
Mechanism 100 processed, further includes planetary gear mechanism 200, and planetary gear mechanism 200 includes fixed axis gear 210 and nibbles with 210 phase of fixed axis gear
The planetary gear 220 of conjunction, fixed axis gear 210 and 120 coaxial synchronous of ratchet are sequentially connected.
The transmission device of above-mentioned lower decline angle in use, fixed axis gear 210 and 120 coaxial synchronous of ratchet are sequentially connected, when
After the reversed turning angle of ratchet 120 exponentially reduces, the revolution precision for the planetary gear being meshed with fixed axis gear 210 just can be at
It improves again, can finally double up the transmission accuracy of transmission device.The transmission device of such lower decline angle uses upper
Irreversible control 100 is stated, transmission accuracy can be improved under the premise of meeting reliable transmission.
On the other hand, a kind of antenna for base station is additionally provided, the transmission device including above-mentioned lower decline angle.The antenna for base station
Using the transmission device of lower decline angle, there is higher degree of regulation, also can satisfy the need of antenna for base station miniaturization
It wants.
Be compared with the prior art, the utility model have following advantage and the utility model has the advantages that
1, by increasing the quantity of pawl 130, change single-pawl 130 as multiple ratchets 130, and each pawl 130 that is staggered
The position of engagement engaged with ratchet 120 is engaged ratchet 120 in order with pawl 130, to improve irreversible control
100 stop series.
2, it is compared with the gear teeth number of teeth for increasing ratchet 120 to increase the scheme of 100 stop series of irreversible control,
This unidirectional control device is not necessarily to increase the size of ratchet 120, or even need not change ratchet 120 and pawl 130, and only increases
The quantity of pawl 130 can double up the stop series of irreversible control 100.Make the exhausted of former transmission device in this way
Most of parts are able to continue to continue to use, and only need change mounting base 110 (increasing the position that pawl 130 is installed in mounting base 110).
3, after the reversed turning angle of ratchet 120 exponentially reduces, the public affairs for the planetary gear being meshed with fixed axis gear 210
Turning precision just can double up, and can finally double up the transmission accuracy of transmission device.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of irreversible control, which is characterized in that including mounting base, the ratchet being set in the mounting base, Yi Jiyan
The outer of the ratchet is provided at circumferentially spaced at least two pawls, the pawl rotatably install in mounting base and can with it is described
Ratchet detent fit；When at least one described pawl and when the ratchet detent fit, at least one described pawl not with institute
Ratchet detent fit is stated, and the ratchet is all the same with the maximum angle of rotation needed for the pawl detent fit every time.
2. irreversible control according to claim 1, which is characterized in that between the center of rotation of all pawls is uniform
On the same circumference every setting, and the radius of gyration of all pawls is all the same.
3. irreversible control according to claim 1, which is characterized in that be equipped between the pawl and the mounting base
Return springs, enable the pawl automatically with ratchet detent fit.
4. irreversible control according to claim 3, which is characterized in that the pawl is equipped with the gear teeth with the ratchet
What is matched compresses end, and described compress is equipped with the return springs between end and the mounting base.
5. irreversible control according to claim 4, which is characterized in that the mounting base is equipped with convex towards the ratchet
The first protrusion out, the end that compresses are equipped with second protrusion opposite with first protrusion, and the return springs are to reset
Spring, and its both ends is sheathed on respectively in first protrusion and second protrusion.
6. irreversible control according to claim 1, which is characterized in that set between the gear teeth of the two neighboring ratchet
There are adjacent the first mating surface and the second mating surface, and first mating surface and the second mating surface setting at an acute angle, institute
State pawl equipped with compatible with first mating surface first compress face and with second mating surface compatible second
Compress face.
7. irreversible control according to claim 6, which is characterized in that first mating surface include the first inclined-plane and
The second inclined-plane being arranged in obtuse angle with first inclined-plane, second inclined-plane are docked with the second mating surface arc.
8. irreversible control according to any one of claim 1 to 7, which is characterized in that the pawl include it is multiple,
And all pawls can with circuiting sequentially with the ratchet detent fit.
9. a kind of transmission device of lower decline angle, which is characterized in that described in any item unidirectionally controlled including claim 1 to 8
Mechanism further includes planetary gear mechanism, and the planetary gear mechanism includes fixed axis gear and the planet that is meshed with the fixed axis gear
Gear, the fixed axis gear are connect with the coaxial ratchet Synchronous Transmission.
10. a kind of antenna for base station, which is characterized in that the transmission device including lower decline angle as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822260878.5U CN209183715U (en) | 2018-12-29 | 2018-12-29 | The transmission device and its irreversible control of antenna for base station, lower decline angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822260878.5U CN209183715U (en) | 2018-12-29 | 2018-12-29 | The transmission device and its irreversible control of antenna for base station, lower decline angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209183715U true CN209183715U (en) | 2019-07-30 |
Family
ID=67378203
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822260878.5U Expired - Fee Related CN209183715U (en) | 2018-12-29 | 2018-12-29 | The transmission device and its irreversible control of antenna for base station, lower decline angle |
Country Status (1)
| Country | Link |
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| CN (1) | CN209183715U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539264A (en) * | 2019-09-11 | 2019-12-06 | 南京工程学院 | Rotatable test fixture of reliable location |
| CN112490618A (en) * | 2020-10-27 | 2021-03-12 | 国网浙江海盐县供电有限公司 | Portable automatic emergency vehicle that expandes of wireless private network of electric power |
-
2018
- 2018-12-29 CN CN201822260878.5U patent/CN209183715U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539264A (en) * | 2019-09-11 | 2019-12-06 | 南京工程学院 | Rotatable test fixture of reliable location |
| CN110539264B (en) * | 2019-09-11 | 2020-11-03 | 南京工程学院 | Rotatable test fixture of reliable location |
| CN112490618A (en) * | 2020-10-27 | 2021-03-12 | 国网浙江海盐县供电有限公司 | Portable automatic emergency vehicle that expandes of wireless private network of electric power |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200113 Address after: 510730 Guangdong city of Guangzhou province Guangzhou economic and Technological Development Zone Jinbi Road No. 6 Patentee after: Jingxin Communication Technology (Guangzhou) Co., Ltd. Address before: 510730 Guangdong city of Guangzhou province Guangzhou economic and Technological Development Zone Jinbi Road No. 6 Co-patentee before: Jingxin Communication System (China) Co., Ltd. Patentee before: Jingxin Communication Technology (Guangzhou) Co., Ltd. Co-patentee before: Jingxin Communication System (Guangzhou) Co., Ltd. Co-patentee before: TIANJIN COMBA TELECOM SYSTEMS CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190730 Termination date: 20201229 |