A communication antenna with adjustable tilt angle

Abstract

The present application relates to the technical field of antenna, especially to a communication antenna with adjustable pitch angle, comprising a mounting plate, an antenna body is installed above the mounting plate, a stepless pitch adjusting assembly is installed below the mounting plate, and a shell mechanism is installed below the stepless pitch adjusting assembly; the stepless pitch adjusting assembly comprises a half worm gear and a support seat mechanism, a slotted block is fixedly connected to each side of the half worm gear, a guide rail is fixedly connected to the outer side of the slotted block, the support seat mechanism is rotatably connected to the outer side of the guide rail, a worm is rotatably connected to the inner side of the support seat mechanism, and the worm is meshingly connected with the half worm gear; in the present application, relying on the reverse self-locking characteristics of the worm gear and the worm, no additional locking piece is needed after adjustment, the angle is automatically locked by mechanical engagement, the problem of damping attenuation and vibration deviation of the traditional damping structure after long-term use is avoided, the angle stability is greatly improved, and the operation can be performed manually without the need of special tools.

Description

Technical Field

[0001] This invention relates to the field of antenna technology, specifically to a communication antenna with adjustable elevation angle. Background Technology

[0002] Indoor communication antennas are the core terminal components of indoor mobile communication signal coverage systems. They are mainly used to strengthen mobile phone communication signals in indoor areas. For signal blind spots and weak coverage areas caused by walls in residences, office buildings, basements, etc., they effectively amplify the strength of mobile communication signals, improve the stability of mobile phone calls and data transmission rates, and ensure the smoothness and reliability of indoor mobile communication. They are important signal adaptation devices for improving indoor communication quality.

[0003] To adapt to different indoor spatial layouts and optimize signal coverage and uniformity, existing communication antennas with adjustable pitch angles have radiating elements that can achieve stepless adjustment of different pitch angles, and are equipped with a self-locking positioning structure to fix the angle. They can flexibly adjust the antenna radiation direction according to the site environment to obtain better signal coverage. However, existing stepless adjustment and self-locking positioning structures still have obvious shortcomings: damped stepless adjustment structures are prone to damping attenuation after long-term use, and the self-locking force decreases. They will deviate from the angle even with slight vibrations, making it difficult to maintain the optimal pitch angle of the antenna and affecting the stability of indoor signal coverage. Therefore, an adjustable pitch angle communication antenna is proposed to address the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a communication antenna with adjustable pitch angle to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An adjustable-pitch communication antenna includes a mounting plate. An antenna body is mounted on top of the mounting plate, and a stepless pitch adjustment assembly is mounted below the mounting plate. A housing mechanism is mounted below the stepless pitch adjustment assembly. The stepless pitch adjustment assembly includes a semi-worm gear and a support base mechanism. Grooved blocks are fixedly connected to both sides of the semi-worm gear. A guide rail is fixedly connected to the outer side of the grooved blocks. The support base mechanism rotatably engages with the outer side of the guide rail. A worm gear is rotatably connected to the inner side of the support base mechanism and meshes with the semi-worm gear. A driven bevel gear is fixedly connected to one end of the worm gear. A support tray is fixedly connected to the bottom end of the support base mechanism, and a radiating element is mounted below the support tray. The housing mechanism includes an upper housing and a driving bevel gear. The upper housing is fitted onto the outer side of the support tray. The driving bevel gear is fixedly connected to the top end of the upper housing and meshes with the driven bevel gear. A lower housing is bolted to the bottom end of the upper housing.

[0007] As a further optimization of the present invention, the active bevel gear is located below the driven bevel gear, the center line of the lower housing is on the same straight line as the center line of the upper housing and the center line of the active bevel gear, and the bottom of the outer side of the upper housing is provided with anti-slip grooves arranged in a ring array.

[0008] As a further optimization of the present invention, the support base mechanism includes a base body, an installation cavity for installing a worm gear is provided at the center of the base body, upper cable grooves are provided on both sides of the base body, support blocks are fixedly connected to both sides of the outer wall of the base body, a connecting plate is integrally formed on the top side of the support block near the guide rail, and an anti-detachment protrusion is integrally formed on the bottom end of the connecting plate.

[0009] As a further optimization of the present invention, the bottom end of the seat is fixedly connected to the middle part of the upper surface of the support tray.

[0010] As a further optimization of the present invention, the anti-detachment protrusion extends into the inner side of the guide rail, and the anti-detachment protrusion has a hemispherical structure.

[0011] As a further optimization of the present invention, the semi-worm gear is fixedly disposed in the middle of the lower surface of the mounting plate.

[0012] As a further optimization of the present invention, the grooved block has a slot on its inner side, and the vertical cross-section of the grooved block has a semi-circular structure.

[0013] As a further optimization of the present invention, the outer side of the guide rail has a semi-circular structure, and the inner side of the guide rail is provided with a positioning groove for the anti-detachment protrusion to slide.

[0014] As a further optimization of the present invention, the following features are provided: lower cable grooves are provided on both sides of the carrying tray, and the slot of the grooved block is connected to the upper cable groove and the lower cable groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. In this invention, by setting a worm gear and bevel gear linkage adjustment structure, the radiation unit can be driven to complete stepless pitch adjustment by rotating the outer shell with anti-slip groove. Relying on the reverse self-locking characteristic of the worm gear, no additional locking parts are needed after adjustment. The angle is automatically locked by mechanical meshing, avoiding the problems of damping attenuation and vibration deviation after long-term use of traditional damping structures. The angle stability is greatly improved. It can be operated by hand without special tools.

[0017] 2. In this invention, by setting an arc-shaped guide rail and a hemispherical anti-detachment protrusion guide structure, the support seat slides smoothly along the arc trajectory without derailing. At the same time, it is equipped with a through-type upper and lower cable channel, so that the radio frequency cable can be neatly laid along the channel. The antenna pitch swing will not pull or entangle the feeder, ensuring stable signal transmission. The overall structure is compact, easy to disassemble and maintain, and suitable for various indoor ceiling and wall installation scenarios. Attached Figure Description

[0018] Figure 1 This is a bottom view of the overall structure of the invention;

[0019] Figure 2 This is a top view of the overall structure of the invention;

[0020] Figure 3 This is a schematic diagram of the stepless pitch adjustment component of the present invention;

[0021] Figure 4 This is a schematic diagram of the grooved block and guide rail of the present invention;

[0022] Figure 5 This is a bottom view of the disassembled support base mechanism of the present invention;

[0023] Figure 6 This is a top view of the disassembled support mechanism of the present invention;

[0024] Figure 7 This is a schematic cross-sectional view of the support mechanism of the present invention;

[0025] Figure 8 This is a schematic diagram of the overall disassembled structure of the present invention;

[0026] Figure 9 This is a schematic diagram of the disassembled structure of the outer shell mechanism of the present invention.

[0027] In the diagram: 1. Mounting plate; 2. Antenna body; 3. Stepless pitch adjustment assembly;

[0028] 31. Semi-worm gear; 32. Grooved block; 33. Guide rail; 34. Support base mechanism;

[0029] 341. Base; 342. Mounting cavity; 343. Upper cable tray; 344. Support block; 345. Connecting plate; 346. Anti-detachment protrusion;

[0030] 35. Worm gear; 36. Driven bevel gear; 37. Load-bearing tray; 38. Lower cable tray; 39. Radial unit;

[0031] 4. Outer shell mechanism; 41. Upper shell; 42. Drive bevel gear; 43. Lower shell; 44. Anti-slip groove. Detailed Implementation

[0032] Example

[0033] Please see Figures 1-9 This invention discloses a communication antenna with adjustable pitch angle, including a mounting plate 1, an antenna body 2 mounted on top of the mounting plate 1, a stepless pitch adjustment assembly 3 mounted below the mounting plate 1, and a housing mechanism 4 mounted below the stepless pitch adjustment assembly 3. The stepless pitch adjustment assembly 3 includes a semi-worm gear 31 and a support base mechanism 34. Grooved blocks 32 are fixedly connected to both sides of the semi-worm gear 31, and guide rails 33 are fixedly connected to the outer sides of the grooved blocks 32. The support base mechanism 34 is rotatably engaged with the outer side of the guide rails 33, and the inner side of the support base mechanism 34 is rotatably connected to... There is a worm gear 35, which meshes with a half-worm gear 31. One end of the worm gear 35 is fixedly connected to a driven bevel gear 36. The bottom end of the support base mechanism 34 is fixedly connected to a bearing tray 37. A radiation unit 39 is installed below the bearing tray 37. The outer shell mechanism 4 includes an upper shell 41 and a driving bevel gear 42. The upper shell 41 is sleeved on the outside of the bearing tray 37. The top end of the upper shell 41 is fixedly connected to the driving bevel gear 42, which meshes with the driven bevel gear 36. The bottom end of the upper shell 41 is fixed to a lower shell 43 by bolts.

[0034] In the initial assembly state, the mounting plate 1 is fixed to the indoor wall, ceiling, or other installation position. The semi-worm gear 31 is fixed in the center on the lower surface of the mounting plate 1, and arc-shaped guide rails 33 are fixed to both sides of it through grooved blocks 32. The support base mechanism 34 is inserted into the inner positioning groove of the guide rail 33 through the anti-detachment protrusions 346 on both sides, and can slide along the track in an arc. The worm 35 is rotatably assembled in the mounting cavity 342 of the base body 341 and maintains a meshing state with the semi-worm gear 31. The bearing tray 37 is fixed to the bottom end of the support base mechanism 34, and the radiation unit 39 is installed below the bearing tray 37. The outer shell mechanism 4 is sleeved on the outside of the bearing tray 37, and the driving bevel gear 42 at the top of the upper shell 41 meshes with the driven bevel gear 36 at the end of the worm 35.

[0035] When adjusting the pitch angle, the operator pinches the anti-slip groove 44 on the outside of the upper housing 41 and rotates it, causing the upper housing 41 and the active bevel gear 42 to rotate synchronously around the axis. The active bevel gear 42 drives the driven bevel gear 36 to rotate through tooth surface meshing, which in turn drives the worm 35 to rotate synchronously in the mounting cavity 342. Since the half worm wheel 31 is fixed, the rotating worm 35 continues to mesh along the worm wheel tooth surface, causing the entire support base mechanism 34 to slide along the arc trajectory of the guide rail 33. The support base mechanism 34 drives the radiation unit 39 to swing synchronously around the central axis of the half worm wheel 31 through the bearing tray 37, thereby continuously changing the pitch angle of the radiation unit 39 and realizing stepless angle adjustment in the full range.

[0036] After adjusting to the target angle, stop rotating the outer shell mechanism 4. Relying on the reverse self-locking characteristic of the half worm gear 31 and worm 35 transmission, the worm 35 can drive the half worm gear 31 to move. The half worm gear 31 cannot drive the worm 35 to rotate in the reverse direction. The weight of the radiation unit 39 itself and the impact force generated by external vibration cannot drive the worm 35 to rotate in the reverse direction. Therefore, the angle is automatically mechanically locked. The current pitch attitude can be stably maintained without additional locking structure and will not deviate on its own.

[0037] In terms of power supply cable layout, the radio frequency cable of the radiating unit 39 can be led out upward through the lower cable groove 38 on both sides of the bearing tray 37, and then pass through the upper cable groove 343 and the inner groove of the groove block 32 in sequence before connecting to the upper device. The cable is neatly laid out along the through cable channel. During the pitch angle swing, the cable moves in an arc synchronously with the channel, and there will be no pulling, squeezing or tangling problems, ensuring a stable and reliable power supply connection throughout the process.

[0038] Among them, the driving bevel gear 42 is located below the driven bevel gear 36, the center line of the lower housing 43 is on the same straight line as the center line of the upper housing 41 and the center line of the driving bevel gear 42, and the bottom of the outer side of the upper housing 41 is provided with anti-slip grooves 44 arranged in a ring array.

[0039] The lower housing 43, the upper housing 41 and the driving bevel gear 42 are collinear, which can ensure that the force is balanced and the operation is smooth without wobbling during the transmission process. The anti-slip groove 44 can increase the friction for hand operation, and the angle can be adjusted by manually turning the outer shell without special tools.

[0040] Furthermore, the support base mechanism 34 includes a base body 341, with an installation cavity 342 for installing the worm gear 35 at the center of the interior of the base body 341. Upper cable grooves 343 are provided on both sides of the interior of the base body 341. Support blocks 344 are fixedly connected to both sides of the outer wall of the base body 341. A connecting plate 345 is integrally formed on the top side of the support block 344 near the guide rail 33. An anti-detachment protrusion 346 is integrally formed at the bottom end of the connecting plate 345.

[0041] The upper cable grooves 343 on both sides inside the base 341 provide space for the radio frequency feed cable to pass through, avoiding cable interference with the pitch adjustment movement; the support block 344, the connecting plate 345 and the anti-detachment protrusion 346 form a lateral guide and anti-detachment structure, which works with the guide rail 33 to constrain the movement trajectory of the support base and prevent derailment and radial deviation during the adjustment process.

[0042] It should be noted that the bottom end of the seat 341 is fixedly connected to the middle of the upper surface of the bearing tray 37, so that the support seat mechanism 34 and the bearing tray 37 form a rigid linkage whole.

[0043] The anti-slip protrusion 346 extends into the inner side of the guide rail 33. The anti-slip protrusion 346 has a hemispherical structure, forming a radial anti-slip constraint. The spherical contact form greatly reduces the sliding friction resistance, making the pitch adjustment process smooth and without jamming.

[0044] The semi-worm gear 31 is fixedly installed in the middle of the lower surface of the mounting plate 1, which can avoid abnormal structural wear caused by off-center loading.

[0045] Furthermore, the inner side of the slotted block 32 is provided with a slot, and the vertical cross-section of the slotted block 32 is semi-circular. The slot provides clearance for the RF cable to pass through, and the vertical cross-section of the slotted block 32 is semi-circular, which can be adapted and fitted to the semi-circular shape of the guide rail 33.

[0046] It should be noted that the outer side of the guide rail 33 has a semi-circular structure, and the inner side of the guide rail 33 is provided with a positioning groove for the anti-detachment protrusion 346 to slide, which ensures that the support base mechanism 34 slides smoothly along the set arc trajectory, and also restricts its radial disengagement.

[0047] Furthermore, both sides of the carrying tray 37 are provided with lower cable grooves 38. The grooves with groove blocks 32 are connected to the upper cable grooves 343 and the lower cable grooves 38 to form a continuous cable laying channel. The radio frequency cables can be neatly arranged along the channel. During the full range of pitch angle adjustment, the cables move in an arc with the channel, and there will be no squeezing, pulling or tangling.

[0048] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A communication antenna with adjustable pitch angle, comprising a mounting plate (1), wherein an antenna body (2) is mounted on top of the mounting plate (1), characterized in that, A stepless pitch adjustment assembly (3) is installed below the mounting plate (1), and a housing mechanism (4) is installed below the stepless pitch adjustment assembly (3). The stepless pitch adjustment assembly (3) includes a semi-worm gear (31) and a support base mechanism (34). Both sides of the semi-worm gear (31) are fixedly connected to grooved blocks (32). The outer side of the grooved blocks (32) is fixedly connected to a guide rail (33). The support base mechanism (34) is rotatably engaged with the outer side of the guide rail (33). The inner side of the support base mechanism (34) is rotatably connected to a worm (35). The worm (35) is meshed with the semi-worm gear (31). One end of the worm (35) is fixedly connected to a driven bevel gear (36). The bottom end of the support base mechanism (34) is fixedly connected to a bearing tray (37). A radiation unit (39) is installed below the bearing tray (37). The outer shell mechanism (4) includes an upper shell (41) and a driving bevel gear (42). The upper shell (41) is sleeved on the outside of the bearing tray (37). The top of the upper shell (41) is fixedly connected to the driving bevel gear (42). The driving bevel gear (42) meshes with the driven bevel gear (36). The bottom of the upper shell (41) is fixed to the lower shell (43) by bolts.

2. The communication antenna with adjustable elevation angle according to claim 1, characterized in that: The driving bevel gear (42) is located below the driven bevel gear (36). The center line of the lower housing (43) is on the same straight line as the center line of the upper housing (41) and the center line of the driving bevel gear (42). The bottom of the outer side of the upper housing (41) is provided with anti-slip grooves (44) arranged in a ring array.

3. The communication antenna with adjustable elevation angle according to claim 1, characterized in that: The support base mechanism (34) includes a base body (341), an installation cavity (342) for installing a worm gear (35) is provided at the center of the base body (341), upper cable grooves (343) are provided on both sides of the base body (341), and support blocks (344) are fixedly connected to both sides of the outer wall of the base body (341). A connecting plate (345) is integrally formed on the top side of the support block (344) near the guide rail (33), and an anti-detachment protrusion (346) is integrally formed at the bottom end of the connecting plate (345).

4. The communication antenna with adjustable elevation angle according to claim 3, characterized in that: The bottom end of the seat (341) is fixedly connected to the middle of the upper surface of the support tray (37).

5. The communication antenna with adjustable pitch angle according to claim 3, characterized in that: The anti-detachment protrusion (346) extends into the inner side of the guide rail (33), and the anti-detachment protrusion (346) has a hemispherical structure.

6. The communication antenna with adjustable elevation angle according to claim 1, characterized in that: The semi-worm gear (31) is fixedly installed in the middle of the lower surface of the mounting plate (1).

7. The communication antenna with adjustable elevation angle according to claim 1, characterized in that: The grooved block (32) has a slot on its inner side, and the vertical cross-section of the grooved block (32) is semi-circular.

8. The communication antenna with adjustable elevation angle according to claim 1, characterized in that: The outer side of the guide rail (33) has a semi-circular structure, and the inner side of the guide rail (33) is provided with a positioning groove for the anti-detachment protrusion (346) to slide.

9. The communication antenna with adjustable elevation angle according to claim 1, characterized in that: The support tray (37) has a lower cable groove (38) on both sides, and the groove of the grooved block (32) is connected to the upper cable groove (343) and the lower cable groove (38).

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