CN210806008U

CN210806008U - Antenna based on big dipper two-way communication and location

Info

Publication number: CN210806008U
Application number: CN201921837451.5U
Authority: CN
Inventors: 林新忠
Original assignee: Zhejiang Jinbo Electron Co Ltd
Current assignee: Zhejiang Jinbo Electron Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-06-19
Anticipated expiration: 2029-10-29

Abstract

The utility model relates to an antenna based on big dipper two-way communication and location, it includes the terminal box, sets up ceramic antenna in the terminal box, sets up the cable on the ceramic antenna, the bottom of the terminal box is provided with the outer tube that supplies the cable to wear to establish, tight cover is equipped with the inner tube that can rotate relative to the outer tube on the cable, be provided with seal assembly between outer tube and the inner tube; the sealing assembly comprises a first check ring, an elastic piece, a second check ring, a rubber support, a movable ring, a static ring and a ferrule, wherein the first check ring, the elastic piece, the second check ring, the rubber support, the movable ring, the static ring and the ferrule are sequentially abutted and fixed in the direction away from the junction box, the first check ring, the elastic piece, the second check ring, the rubber support, the movable ring, the static ring and the ferrule are fixedly embedded in the inner. The utility model discloses a seal assembly and cable form multiple sealed face with the inner tube to it is sealed to be assisted with rotating between rotating ring and the quiet ring realization outer tube and the inner tube, with this waterproof effect that reaches.

Description

Antenna based on big dipper two-way communication and location

Technical Field

The utility model belongs to the technical field of the technique of antenna and specifically relates to an antenna based on big dipper two-way communication and location is related to.

Background

The Beidou antenna is used for receiving Beidou satellite signals. Most big dipper antenna is right-handed polarization ceramic medium, and its component part is: ceramic antenna, low noise signal module, cable, joint. The ceramic antenna is also called a passive antenna, a dielectric antenna and a PATCH, and is the core technology of the Beidou antenna.

The existing ceramic antenna is usually installed in a junction box, then an upper cover is installed and fixed on the junction box through waterproof glue, meanwhile, a hole for the cable to penetrate is formed in the junction box, one layer of waterproof glue is also arranged between the hole and the gap of the cable, and therefore the waterproof effect is achieved. But because the cable receives external factor influence and often rotates, can lead to the waterproof glue to tear and break away from, and then influence installation clearance water-proof effects between cable and the terminal box, await improvement.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to the above-mentioned not enough that exists among the prior art and provide an antenna based on big dipper both-way communication and location with waterproof function, it has solved the not good problem of installation clearance water-proof effects between the cable of current ceramic antenna and the terminal box.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

an antenna based on Beidou two-way communication and positioning comprises a junction box, a ceramic antenna arranged in the junction box and a cable arranged on the ceramic antenna, wherein the bottom of the junction box is provided with an outer tube for the cable to penetrate through, an inner tube capable of rotating relative to the outer tube is tightly sleeved on the cable, and a sealing assembly is arranged between the outer tube and the inner tube; the sealing assembly comprises a first retainer ring, an elastic piece, a second retainer ring, a rubber support, a movable ring, a static ring and a ferrule, wherein the first retainer ring, the elastic piece, the second retainer ring, the rubber support, the movable ring and the static ring are sequentially abutted along the direction far away from the junction box and are fixedly sleeved on the outer wall of the inner pipe, and the ferrule is embedded and fixed on the inner wall of the outer pipe and is tightly sleeved outside the static ring; an outer collar is fixed on the first retainer ring and is tightly sleeved outside the second retainer ring, the rubber support and the movable ring; the elastic piece forces the end face of the second retainer ring to tightly abut against the end face of the rubber support; the end face of the static ring tightly abuts against the end face of the ferrule.

Through adopting above-mentioned technical scheme, form the sealed face of a plurality of axial conflicts through first retaining ring, elastic component, second retaining ring, rubber support, rotating ring, quiet ring and lasso, form the sealed face of radial conflict between first retaining ring and inner tube, lasso and the outer tube simultaneously to this rotary seal structure who constitutes between outer tube and the inner tube, make the cable can rotatory to the junction box, restricted external water again and got into in the junction box from the outer tube, finally guarantee the water-proof effects of antenna.

The utility model discloses further set up to: the inner wall protrusion of outer tube is provided with the internal thread, the outer wall of inner tube sunken be provided with internal thread complex external screw thread.

Through adopting above-mentioned technical scheme, through setting up spacing complex internal thread and external screw thread, when further improving water-proof effects, further restriction rotating ring breaks away from quiet ring easily.

The utility model discloses further set up to: an inner lantern ring is fixed on the end face of the first check ring, and a plurality of limiting grooves are arranged on the outer wall of the inner lantern ring in a concave mode; the elastic component is provided with a plurality ofly along the circumference of interior lantern ring, just the elastic component is the spring of sliding connection in these spacing inslots.

Through adopting above-mentioned technical scheme, the spacing groove sets up on the helical path of elastic component relatively for the elastic component can stretch out and draw back along the spacing groove, has avoided the elastic component crooked again simultaneously.

The utility model discloses further set up to: the end face, close to the movable ring, of the rubber support is provided with a guide face, and the guide face is used for guiding the movable ring to the outer sleeve ring.

Through adopting above-mentioned technical scheme, utilize the guide effect of spigot surface, conflict each other between rotating ring and the quiet ring and can apply for rotating ring pressure, above-mentioned pressure forces between rubber support and the rotating ring extrusion each other, and the rotating ring will follow the motion of the outside lantern ring of spigot surface orientation this moment to make the rotating ring further compress tightly the outer lantern ring, with this waterproof effect who improves seal assembly.

The utility model discloses further set up to: the outer wall of the movable ring is concavely provided with a plurality of rotation stopping grooves, and the end part of the outer sleeve ring is provided with a limiting terminal in sliding fit with the rotation stopping grooves.

Through adopting above-mentioned technical scheme, restricted the rotating ring and rotated for outer collar, do not influence outer collar again and stop sliding in revolving the groove.

To sum up, the utility model discloses a beneficial technological effect does: form multiple sealed face through seal assembly and cable and inner tube to it realizes the rotation seal between outer tube and the inner tube to assist with rotating ring and quiet ring, reaches water-proof effects with this, and has solved the not good problem of installation clearance water-proof effects between the cable of current ceramic antenna and the terminal box.

Drawings

Fig. 1 is the utility model discloses a sectional structure schematic diagram of antenna based on big dipper two-way communication and location.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

In the figure, 1, a junction box; 2. installing an upper cover; 3. a ceramic antenna; 4. a cable; 5. an outer tube; 51. an internal thread; 6. an inner tube; 61. an external thread; 7. a seal assembly; 71. a first retainer ring; 72. an elastic member; 73. a second retainer ring; 74. a rubber support; 741. a guide surface; 75. a moving ring; 751. a rotation stopping groove; 76. a stationary ring; 77. a ferrule; 78. an inner collar; 781. a limiting groove; 79. an outer collar; 791. and a limiting terminal.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:

referring to fig. 1, for the utility model discloses an antenna based on big dipper two-way communication and location, including terminal box 1, be fixed in installation upper cover 2 on the terminal box 1, set up ceramic antenna 3 in terminal box 1, set up cable 4 on ceramic antenna 3 through the waterproof glue. The bottom of line box is provided with the outer tube 5 that supplies cable 4 to wear to establish, and the tight cover is equipped with inner tube 6 on cable 4, is provided with seal assembly 7 between outer tube 5 and the inner tube 6. The sealing component 7 is in a rotary sealing mode so as to realize that the inner pipe 6 can rotate relative to the appearance and has a waterproof effect.

Referring to fig. 2, the seal assembly 7 includes a first retainer 71, an elastic member 72, a second retainer 73, a rubber bracket 74, a movable ring 75, a stationary ring 76, and a ferrule 77, which are sequentially arranged in a direction away from the terminal block 1.

The first retainer ring 71 is tightly fitted over the inner tube 6, and the first retainer ring 71 is coaxially provided with an inner collar 78 and an outer collar 79 on an end surface facing away from the junction box 1. Wherein, the inner ring 78 is tightly sleeved on the inner tube 6, and a gap is left between one end of the inner ring 78 close to the second retainer ring 73 and the second retainer ring 73. The outer collar 79 is tightly sleeved outside the second retainer ring 73, the rubber bracket 74 and the movable ring 75. Meanwhile, the outer wall of the movable ring 75 is provided with a plurality of rotation stopping grooves 751 along the circumferential direction, and the length direction of the rotation stopping grooves 751 is parallel to the axis; the end of the outer collar 79 remote from the first retainer ring 71 is provided with limit terminals 791 that slidingly engage with these rotation-stop grooves 751. The first retainer ring 71, the inner collar 78, the outer collar 79 and the limit terminal 791 are integrally formed and have a substantially U-shape with one side thereof extended.

An inner collar 78 is fixed on the end face of the first retainer ring 71, and a plurality of limit grooves 781 are concavely arranged on the outer wall of the inner collar 78. The elastic member 72 is provided with a plurality of elastic members 72 along the circumference of the inner collar 78, and the elastic members 72 are springs slidably connected in the limit grooves 781. One end of the elastic element 72 abuts against the end face of the first retainer ring 71, and the other end abuts against the end face of the second retainer ring 73, so that the end face of the second retainer ring 73 is forced to abut against the end face of the rubber support 74 tightly. The limit groove 781 is relatively disposed on the spiral path of the elastic member 72, so that the elastic member 72 can extend and retract along the limit groove 781, and the elastic member 72 is prevented from bending.

The end surface of the rubber bracket 74 near the rotating ring 75 is provided with a guide surface 741, and the guide surface 741 is used for guiding the rotating ring 75 to the outer ring 79. By the guiding action of the guiding surface 741, the movable ring 75 and the stationary ring 76 interfere with each other to apply a pressure to the movable ring 75, and the pressure forces the rubber bracket 74 and the movable ring 75 to be pressed against each other, at which time the movable ring 75 moves along the guiding surface 741 toward the outer collar 79, so that the movable ring 75 further presses the outer collar 79, thereby enhancing the waterproof effect of the sealing assembly 7.

In addition, the ferrule 77 is fixed to the inner wall of the outer tube 5 by caulking and tightly fitted outside the stationary ring 76, one end surface of the stationary ring 76 tightly abuts against the end surface of the ferrule 77, and the other end surface abuts against the end surface of the movable ring 75. The rotary sealing surface is formed by the structure, so that the rotary sealing effect of the sealing assembly 7 is achieved.

The inner wall of the outer tube 5 is convexly provided with an internal thread 51, and the outer wall of the inner tube 6 is concavely provided with an external thread 61 matched with the internal thread 51. Wherein the internal thread 51 and the external thread 61 are arranged on the side of the sealing assembly 7 remote from the terminal box 1. By providing the internal thread 51 and the external thread 61 which are in limit fit with each other, the movable ring 75 is further prevented from easily separating from the stationary ring 76 while the waterproof effect is further improved.

The implementation principle of the embodiment is as follows: form the sealed face of a plurality of axial conflicts through first retaining ring 71, elastic component 72, second retaining ring 73, rubber support 74, rotating ring 75, quiet ring 76 and lasso 77, first retaining ring 71 and inner tube 6 simultaneously, form the sealed face of radial conflict between lasso 77 and the outer tube 5, constitute rotary seal structure between outer tube 5 and the inner tube 6 with this, make cable 4 rotatory to terminal box 1 relatively, restricted again that external water from outer tube 5 department gets into in terminal box 1, finally guarantee the water-proof effects of antenna.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides an antenna based on big dipper both-way communication and location, includes terminal box (1), set up in ceramic antenna (3) in terminal box (1), set up in cable (4) on ceramic antenna (3), its characterized in that: an outer tube (5) through which the cable (4) penetrates is arranged at the bottom of the junction box (1), an inner tube (6) which can rotate relative to the outer tube (5) is tightly sleeved on the cable (4), and a sealing assembly (7) is arranged between the outer tube (5) and the inner tube (6); the sealing assembly (7) comprises a first retainer ring (71), an elastic piece (72), a second retainer ring (73), a rubber support (74), a movable ring (75), a static ring (76) and a ferrule (77) which is fixedly embedded in the inner wall of the outer pipe (5) and tightly sleeved outside the static ring (76), wherein the first retainer ring (71), the elastic piece (72), the second retainer ring (73), the rubber support (74), the movable ring (75) and the static ring (76) are sequentially abutted along the direction far away from the junction box (1); an outer collar (79) is fixed on the first retainer ring (71), and the outer collar (79) is tightly sleeved outside the second retainer ring (73), the rubber support (74) and the movable ring (75); the elastic piece (72) forces the end face of the second retainer ring (73) to tightly abut against the end face of the rubber bracket (74); the end surface of the static ring (76) is tightly abutted against the end surface of the ferrule (77).

2. The antenna based on big dipper two-way communication and location of claim 1, characterized in that: the inner wall protrusion of outer tube (5) is provided with internal thread (51), the outer wall of inner tube (6) is sunken be provided with internal thread (51) complex external screw thread (61).

3. The antenna based on big dipper two-way communication and location of claim 1, characterized in that: an inner lantern ring (78) is fixed on the end face of the first retainer ring (71), and a plurality of limiting grooves (781) are concavely arranged on the outer wall of the inner lantern ring (78); the elastic pieces (72) are arranged in a plurality of circumferential directions of the inner lantern ring (78), and the elastic pieces (72) are springs connected in the limiting grooves (781) in a sliding mode.

4. The antenna based on big dipper two-way communication and location of claim 1, characterized in that: the end face, close to the movable ring (75), of the rubber support (74) is provided with a guide surface (741), and the guide surface (741) is used for guiding the movable ring (75) to the outer sleeve ring (79).

5. The antenna based on big dipper two-way communication and location of claim 1, characterized in that: the outer wall of the movable ring (75) is concavely provided with a plurality of rotation stopping grooves (751), and the end part of the outer sleeve ring (79) is provided with a limit terminal (791) in sliding fit with the rotation stopping grooves (751).