CN213845521U

CN213845521U - Stop assembly, phase shifter transmission device and antenna

Info

Publication number: CN213845521U
Application number: CN202023257567.7U
Authority: CN
Inventors: 洪声锐; 黄潮生; 段红彬; 肖飞
Original assignee: Comba Telecom Technology Guangzhou Ltd; Jingxin RF Technology Guangzhou Co ltd
Current assignee: Comba Telecom Technology Guangzhou Ltd; Jingxin RF Technology Guangzhou Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-07-30
Anticipated expiration: 2030-12-29

Abstract

The utility model provides a backstop subassembly, phase shift transmission and antenna, wherein the backstop subassembly includes drive block and transmission piece, and the drive block includes gear portion and guide bar of integrative connection, and the transmission piece includes the sleeve portion, the sleeve portion cover is located on the guide bar, the relative tip of gear portion and sleeve portion corresponds extends and forms first backstop portion and second backstop portion, first backstop portion has first backstop face and second backstop face, second backstop portion has third backstop face and fourth backstop face; when the driving block is driven and the first stop surface and the third stop surface are mutually abutted, the stop assembly is in a first stop state, and when the second stop surface and the fourth stop surface are mutually abutted, the stop assembly is in a second stop state. The stop function is integrated on the driving block and the transmission block, so that the arrangement of parts can be reduced, the structure is simple, the assembly is convenient, and the use requirement of the small-stroke phase shifter can be met.

Description

Stop assembly, phase shifter transmission device and antenna

Technical Field

The utility model relates to an antenna technology field particularly, the utility model relates to a backstop subassembly and applied this backstop subassembly move looks ware transmission and antenna.

Background

The phase shifter pushes and pulls an inner dielectric plate (or a movable conductor) through the pull rod to move so as to realize phase shifting, thereby changing the phase of a signal flowing through the phase shifter and further changing the downward inclination angle of the antenna. At present, the movement of the pull rod is specially controlled by the rotation of the screw rod, and stop blocks are generally arranged at the head end and the tail end of the screw rod to limit the stroke of the pull rod. At this time, a stopper needs to be disposed on the screw rod to realize the stopper of the tail portion. For a small-angle downward inclination angle, the pull rod is formed relatively small, and the stop structure is obviously relatively bulky and not simple. On one hand, the limit of spatial layout can cause the stop structure to be difficult to realize due to the small internal space of the antenna; on the other hand, providing a stop to achieve a stop also makes assembly more cumbersome.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a first purpose aims at providing a part is few, save installation time's backstop subassembly.

Another object of the present invention is to provide a phase shifter transmission device using the above stop assembly.

Another object of the present invention is to provide an antenna using the above phase shifter transmission device.

In order to achieve the above purpose, the utility model provides the following technical scheme:

in a first aspect, a stop assembly is provided for limiting a driven member to a first stop state or a second stop state to limit a stroke of the driven member, the stop assembly comprising: the driving block comprises a gear part and a guide rod, wherein one end of the gear part extends to form a first stopping part, the first stopping part is provided with a first stopping surface and a second stopping surface which are opposite to each other, the gear part is used for being connected to a driving mechanism to be driven to rotate by the driving mechanism, and the guide rod is coaxially connected with the gear part; the transmission block comprises a sleeve part and a mounting part, a second stopping part is formed at one end of the sleeve part, the second stopping part is provided with a third stopping surface and a fourth stopping surface which are opposite to each other, the sleeve part is sleeved on the guide rod, and the mounting part is used for connecting a driven part; when the driving block is driven and the first stop surface and the third stop surface are mutually abutted, the stop assembly is in a first stop state, when the second stop surface and the fourth stop surface are mutually abutted, the stop assembly is in a second stop state, and when the stop assembly is changed between the first stop state and the second stop state, axial displacement is generated between the transmission block and the driving block.

Optionally, the first stop surface and the second stop surface are connected through a first spiral surface; the third stop surface and the fourth stop surface are connected through a second spiral surface, and the first spiral surface and the second spiral surface are arranged in opposite directions.

Optionally, the pitch of the first and second helicoids is equal.

Optionally, the first stopping portion forms a first stopping block at a position far away from the end face of the gear portion, the first stopping surface and the second stopping surface are two opposite side surfaces of the first stopping block, the second stopping portion forms a second stopping block at a position far away from the other end of the sleeve portion, the third stopping surface and the fourth stopping surface are two opposite side surfaces of the second stopping block, the first stopping block abuts against the second spiral surface, and the second stopping block abuts against the first spiral surface and can slide along the first spiral surface.

Optionally, both ends of each of the first helical surface and the second helical surface are connected with a transition plane, one side of the transition plane, which is far away from the helical surface, is connected with the stop surface, and the stop surface is perpendicular to the transition plane.

Optionally, the respective ends of the first stop block and the second stop block are rounded.

Alternatively, the guide lever is integrally molded with the gear portion.

Optionally, the mounting portion is a mounting plate formed by extending outward from a side edge of the sleeve portion, and a mounting hole is formed in the mounting plate.

As a second aspect, the present invention relates to a phase shifter transmission device for driving and moving linearly a pull rod connected to a phase shifter, including a driving assembly and the above-mentioned stopper assembly, the driving assembly includes a driving gear, a gear portion and a meshing of the driving gear.

As a third aspect, the utility model discloses still relate to an antenna, including moving looks ware, pull rod and the aforesaid moves looks ware transmission.

The utility model provides a beneficial effect that technical scheme brought is:

the utility model discloses a backstop subassembly, through with backstop function integration on two parts of drive block and driving block, when being applied to the looks ware transmission that moves of little stroke, need not additionally set up backstop part, simple structure, equipment convenience. The utility model discloses a move looks ware transmission and antenna and all applied above-mentioned backstop subassembly, therefore also have the beneficial effect of backstop subassembly.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments of the present invention will be briefly described below.

Fig. 1 is a schematic structural diagram of an antenna according to an embodiment of the present invention, illustrating a partial structure of a back surface of an antenna reflection plate;

fig. 2 is a schematic structural diagram of a stopping assembly according to an embodiment of the present invention, illustrating the stopping assembly in a first stopping state;

fig. 3 is a schematic structural diagram of a driving block according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a transmission block according to an embodiment of the present invention;

fig. 5 is a schematic structural view of the stop assembly provided in fig. 2 in a second stop state.

Detailed Description

Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present invention have been illustrated in the accompanying drawings, it is to be understood that the invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure.

It should be understood that the various steps recited in the method embodiments of the present invention may be performed in a different order and/or performed in parallel. Moreover, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present invention is not limited in this respect.

The term "include" and variations thereof as used herein are open-ended, i.e., "including but not limited to". The term "coupled" may refer to direct coupling or indirect coupling via intermediate members (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions for other terms will be given in the following description.

It should be noted that the terms "first", "second", and the like in the present invention are only used for distinguishing the devices, modules or units, and are not used for limiting the devices, modules or units to be different devices, modules or units, and also for limiting the sequence or interdependence of the functions performed by the devices, modules or units.

Referring to fig. 1 to 5, the present invention relates to an antenna and a phase shifter transmission device applied to the same, wherein, the improvement point mainly relates to a stop component applied to the phase shifter transmission device for limiting the stroke of a pull rod connected with a phase shifter.

Referring to fig. 2 to 4, as a first aspect, the present invention provides a stop assembly 100, which includes a driving block 20 and a transmission block 10, wherein the driving block is used for connecting to a driving device and receiving a driving force, the transmission block is used for connecting to a driven component (e.g. a phase shifter), and the transmission block is connected to the driving block so as to transmit the driving force, and the driving block drives the driven component to move when the driving device works.

The driving block 20 comprises a gear portion 21 and a guide rod 22, the gear portion 21 is used for being connected with a driving device and used for receiving driving force, and the guide rod 22 is provided with the transmission block and guides the moving direction of the transmission block. Preferably, the gear portion 21 is integrally formed with the guide rod 22, and the guide rod 22 is surrounded by the first blocking portion 23. In other embodiments, the gear portion 21 and the guide rod 22 may be separate components that are assembled together with a tight fit. The guide rod can be a round rod or a square rod.

One end of the gear portion 21 extends axially to form a first stop portion 23, the first stop portion 23 is provided with a first stop surface 231, a second stop surface 232 and a first spiral surface 233, a first stop block 234 is formed at a position far away from the end surface of the gear, the first stop surface 231 forms one side surface of the first stop block 234, the second stop surface 232 extends along a direction far away from the gear portion 21 and coincides with the other side surface of the first stop block 234, and the first spiral surface 233 is connected between the first stop surface 231 and the second stop surface 232. The first spiral surface 233 may be regarded as an end surface of the first blocking portion 23 that faces the same direction as the end surface of the gear portion 21 and spirally ascends and descends along the axial direction of the gear portion 21.

The transmission block 10 includes a sleeve portion 11 and a mounting portion 12, the sleeve portion 11 is sleeved on the guide rod 22 and can slide up and down along the guide rod 22, the mounting portion 12 is a mounting plate formed by extending outward along a side wall of the sleeve portion 11, and is provided with a mounting hole so as to mount a driven component (for example, a pull rod connected with a dielectric plate of the phase shifter) through a threaded connection member.

The sleeve portion 11 is provided with a second stopping portion 13 at one end, the second stopping portion 13 is provided with a third stopping surface 131, a fourth stopping surface 132 and a second spiral surface 133, one end of the second stopping portion 13 far away from the end surface of the sleeve portion 11 forms a second stopping block 134, the third stopping surface 131 forms one side surface of the second stopping portion 13, the fourth stopping surface 132 extends in the direction far away from the sleeve portion 11 and is overlapped with the other side surface of the second stopping block 134, and the second spiral surface 133 is connected between the third stopping surface 131 and the fourth stopping surface 132. The second spiral surface 133 may be regarded as an end surface of the second stopper portion 13 that is oriented in the same direction as the end surface of the sleeve portion 11 and that is spirally raised and lowered in the axial direction of the sleeve portion 11.

Preferably, the first spiral surface 233 and the second spiral surface 133 have the same pitch and are disposed opposite to each other. The first stop block 234 abuts against the second spiral surface 133, and the second stop block 134 abuts against the first spiral surface 233. Thus, when the driving block 20 is rotated in one direction, the second stopping block of the driving block 10 spirally rises relative to the first spiral surface of the driving block, so that the driving block linearly rises along the guide bar, and is stopped when the first stopping surface 231 abuts against the third stopping surface 131, in a first stopping state, see fig. 1; when the drive block is rotated in the other direction, the transmission block 10 is lowered linearly along the guide bar and is blocked in a second blocking state when the second blocking surface 232 abuts the fourth blocking surface 132, see fig. 5. Therefore, the stop component can realize the functions of driving, transmission and stopping through the mutual matching of the driving block and the transmission block 10, and when the stop component is applied to a transmission device of a phase shifter, the use of parts can be reduced, the cost is reduced, and the assembly steps are simplified.

Preferably, the ends of the first stop block 234 and the second stop block 134 are rounded to facilitate the stop blocks to slide relative to the spiral surface, so as to ensure the precision of the transmission of the phase shifter.

In addition, a transition plane is connected between each of two ends of the first spiral surface 233 and the second spiral surface 133 and the corresponding stop surface, and the length of the transition plane is matched with the stop surface. Preferably, the side of the transition plane far away from the helical surface is connected with a stop surface, and the stop surface and the transition plane are perpendicular to each other.

Please refer to fig. 1 as a second aspect, the present invention relates to a phase shifter transmission device, which includes a driving device and the above-mentioned stop assembly, preferably, the driving device includes a motor and a driving gear 30 connected to an output shaft of the motor, and a gear portion 21 of the stop assembly 100 is engaged with the driving gear 30, so as to drive a transmission block 10 to move linearly in an axial direction when the motor works, and perform a stop at a limit position, thereby limiting a stroke of the phase shifter transmission device.

As a third aspect, the present invention further relates to an antenna, which includes a reflection plate 300, an antenna array (not shown), a phase shifter 200 and the above-mentioned phase shifter transmission device (not labeled), wherein the reflection plate constitutes a radiation boundary of the antenna array, the phase shifter is used for changing a phase of a signal flowing through the phase shifter to realize an electronic downtilt angle, and the phase shifter transmission device is used for adjusting a dielectric constant in the phase shifter to realize different electronic downtilt angles.

The phase shifter transmission device and the antenna both use the stop device, so the antenna has all the beneficial effects of the stop device, realizes the miniaturization of the antenna and saves the cost.

The above description is only a preferred embodiment of the invention and is intended to illustrate the technical principles applied. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features are mutually replaced with (but not limited to) technical features having similar functions of the present invention.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims

1. A stop assembly for limiting a driven member to a first stop state or a second stop state to limit the travel of the driven member, comprising:

the driving block comprises a gear part and a guide rod, wherein one end of the gear part extends to form a first stopping part, the first stopping part is provided with a first stopping surface and a second stopping surface which are opposite to each other, the gear part is used for being connected to a driving mechanism to be driven to rotate by the driving mechanism, and the guide rod is coaxially connected with the gear part;

the transmission block comprises a sleeve part and a mounting part, a second stopping part is formed at one end of the sleeve part, the second stopping part is provided with a third stopping surface and a fourth stopping surface which are opposite to each other, the sleeve part is sleeved on the guide rod, and the mounting part is used for connecting a driven part;

when the driving block is driven and the first stop surface and the third stop surface are mutually abutted, the stop assembly is in a first stop state, when the second stop surface and the fourth stop surface are mutually abutted, the stop assembly is in a second stop state, and when the stop assembly is changed between the first stop state and the second stop state, axial displacement is generated between the transmission block and the driving block.

2. The stop assembly of claim 1, wherein the first stop surface and the second stop surface are connected by a first helical surface; the third stop surface and the fourth stop surface are connected through a second spiral surface, and the first spiral surface and the second spiral surface are arranged in opposite directions.

3. The stop assembly of claim 2, wherein the first and second helical surfaces have equal thread pitches.

4. The stop assembly of claim 2, wherein the first stop portion forms a first stop block at a position away from the end surface of the gear portion, the first and second stop surfaces are opposite side surfaces of the first stop block, the second stop portion forms a second stop block at a position away from the other end of the sleeve portion, the third and fourth stop surfaces are opposite side surfaces of the second stop block, and the first stop block abuts against the second helical surface, and the second stop block abuts against and is slidable along the first helical surface.

5. The stop assembly of claim 4, wherein the first and second helical surfaces each have a transition plane connected to each end, the transition plane being connected to the stop surface on a side of the transition plane remote from the helical surfaces, the stop surface and the transition plane being perpendicular to each other.

6. The stop assembly of claim 4, wherein the respective ends of the first and second stop blocks are rounded.

7. The stop assembly of claim 1, wherein said guide rod is integrally formed with said gear portion.

8. The stop assembly of claim 1, wherein the mounting portion is a mounting plate formed by extending outwardly from a side of the sleeve portion and having a mounting hole formed therein.

9. A phase shifter transmission for driving a pull rod connected to a phase shifter to move linearly, comprising a driving assembly, characterized by further comprising the stopper assembly of any one of claims 1 to 8, the driving assembly comprising a driving gear, the gear portion being meshed with the driving gear.

10. An antenna comprising a phase shifter, a rod and a phase shifter transmission, wherein the phase shifter transmission is the phase shifter transmission of claim 9.