Retracting and releasing mechanism of communication antenna

Abstract

The utility model discloses a retracting and releasing mechanism of a communication antenna, and relates to the technical field of communication antennae, the retracting and releasing mechanism of the communication antenna comprises a disc-shaped communication antenna, the side surface of the disc-shaped communication antenna is fixedly connected with a U-shaped bracket, the side surface of the U-shaped bracket is fixedly connected with a supporting slide bar, and the other side of the supporting slide bar is movably connected with a retracting and releasing structure; the folding and unfolding mechanism is provided with a fixed support, folding and unfolding connecting rods are symmetrically and movably connected to the side face of the fixed support, one end of each folding and unfolding connecting rod is movably connected with the supporting sliding rod, and the other end of each folding and unfolding connecting rod is in transmission connection with a rotating worm; according to the utility model, the symmetrical supporting arms swing through mutual meshing between the worm helical teeth and the driven worm gear, the disc-shaped communication antenna is folded and unfolded through sliding connection between the supporting arms and the supporting sliding rods, and the communication antenna is automatically locked after being unfolded by utilizing self-locking between the worm gear and the worm. And the space occupancy rate of the folding and unfolding mechanism is reduced, and the application range is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to communication antenna technical field, concretely is a kind of retraction mechanism of communication antenna. BACKGROUND

[0002] Communication antenna is a kind of equipment for transmitting and receiving electromagnetic wave signal, plays a vital role in communication system, when encountering strong wind, heavy rain, blizzard, lightning and other bad weather, strong wind can cause huge mechanical force to antenna, leading to antenna structure deformation, breakage or loosening.Especially for some large volume, surface area is also larger antenna, using retraction mechanism to fold up communication antenna can protect antenna from damage, for some portable communication equipment, such as handheld walkie-talkie, mobile satellite communication terminal, etc., retractable antenna can facilitate the carrying and transportation of equipment.

[0003] However, in practice, people have noticed that the current retraction structure is generally composed of simple nut screw rod, rotates screw rod, and controls antenna storage through thread connection with nut, since antenna is unfolded, the end of storage structure will bear long gravity, therefore the end of ordinary nut screw rod will be deformed after long time stress, affecting normal storage of antenna, and part of storage mechanism group occupies a large amount of space for installation, has higher requirement for installation position, and cannot be replaced with each other, leading to poor versatility. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of retraction mechanism of communication antenna, utilize the mutual cooperation of worm gear and worm, reduce the requirement of space when installing retraction mechanism, cooperate two symmetrical swing arms, realize the retraction operation of antenna, even if swing arm appears bending still does not affect normal use, prolong service life.To solve the technical problems proposed in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of retraction mechanism of communication antenna, including disc-shaped communication antenna, the side surface of disc-shaped communication antenna is fixedly connected with U-shaped bracket, and the side surface of U-shaped bracket is fixedly connected with support slide rod, and the other side of support slide rod is movably connected with retraction structure;

[0007] Retraction mechanism has fixed support, the side surface of fixed support is symmetrically movably connected with retraction connecting rod, and one end of retraction connecting rod is movably connected with support slide rod, and the other end of retraction connecting rod is drivingly connected with rotary worm.

[0008] As a further technical scheme of the utility model, the fixed support has a supporting shell, the side of the supporting shell is integrally provided with a mounting horizontal plate, and the two sides of the supporting shell are symmetrically provided with shaft holes, and the two ends of the supporting shell are provided with worm positioning holes.

[0009] As a further technical scheme of the utility model, the retractable connecting rod comprises driven worms which are movably connected with the supporting shell, the two ends of the shaft rod which is in interference fit in the driven worm are movably connected with the shaft holes, and the two driven worms are symmetrically arranged on the inner side of the supporting shell.

[0010] As a further technical scheme of the utility model, the side of the driven worm is integrally provided with a supporting arm, one end of the supporting arm away from the driven worm is movably connected with a rotating lug, and the supporting arm is movably connected with a sliding sleeve through the rotating lug.

[0011] As a further technical scheme of the utility model, the side of the sliding sleeve is symmetrically fixedly connected with a rotating lug, the two sliding sleeves are slidably connected with the two ends of the supporting slide rod, one side of the sliding sleeve away from the rotating lug is integrally provided with a planar protrusion, and the planar protrusion is slidably connected with the U-shaped bracket.

[0012] As a further technical scheme of the utility model, the rotating worm comprises a rotating shaft located on the side of the driven worm, the two ends of the rotating shaft are symmetrically provided with worm screw teeth, and the two ends of the rotating shaft are fixedly connected with a rectangular connecting protrusion and a manual rotating hanging ring, respectively.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The utility model discloses a worm screw tooth and a driven worm, which are meshed with each other, so that the symmetrical supporting arm swings, the sliding connection between the supporting arm and the supporting slide rod retracts and extends the disc-shaped communication antenna, the communication antenna is automatically locked after being unfolded by the self-locking between the worm and the worm wheel, the space occupancy of the retracting and extending mechanism is reduced, and the use range is increased.

[0015] 2. The rectangular connecting protrusion and the manual rotating hanging ring at the two ends of the rotating shaft can drive the output shaft of the motor to automatically rotate the rotating shaft by a shaft coupling, or the hook at the end of the extension rod can be hung in the manual rotating hanging ring to manually rotate the rotating shaft, so that the driving mode is increased.

[0016] 3. The side of the sliding sleeve is integrally provided with a planar protrusion, and the side of the planar protrusion is slidably connected with the U-shaped bracket, so that the disc-shaped communication antenna is prevented from rotating when being retracted and extended, and the limiting effect is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the use state structure schematic diagram of the utility model.

[0018] Figure 2 is another view of the utility model Figure 1 .

[0019] Figure 3 is the three-dimensional structure schematic diagram of the retractable mechanism in the utility model.

[0020] Figure 4 is the bottom structure schematic diagram of the utility model Figure 3 .

[0021] Figure 5 is the partial structure schematic diagram of the utility model Figure 3 .

[0022] Figure 6 is the bottom structure schematic diagram of the utility model Figure 5 .

[0023] Figure 7 is the three-dimensional structure schematic diagram of the fixed support in the utility model.

[0024] In the drawing:

[0025] Disc-shaped communication antenna-1, U-shaped bracket-2, support sliding rod-3, retractable connecting rod-4, support arm-41, driven worm wheel 42, rotating ear plate-43, sliding sleeve-44, plane convex-45, fixed support-5, support shell-51, installation horizontal plate-52, shaft hole-53, worm positioning hole-54, rotating worm-6, rotating shaft-61, worm spiral tooth-62, rectangular connecting convex-63, manual rotating hanging ring-64. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-7 , the utility model embodiment provides a retractable mechanism of communication antenna, including disc-shaped communication antenna 1, the side of disc-shaped communication antenna 1 is fixedly connected with U-shaped bracket 2, and the side of U-shaped bracket 2 is fixedly connected with support sliding rod 3, and the other side of support sliding rod 3 is movably connected with retractable structure;

[0028] The retractable mechanism has a fixed support 5, the side of the fixed support 5 is symmetrically movably connected with a retractable connecting rod 4, one end of the retractable connecting rod 4 is movably connected with a supporting sliding rod 3, and the other end of the retractable connecting rod 4 is drivingly connected with a rotating worm 6.

[0029] In the embodiment, the fixed support 5 has a supporting shell 51, the side of the supporting shell 51 is integrally provided with a mounting horizontal plate 52, the two sides of the supporting shell 51 are symmetrically provided with shaft holes 53, and the two ends of the supporting shell 51 are provided with worm positioning holes 54.

[0030] Further, the retractable connecting rod 4 comprises driving worm gears 42 movably connected with the supporting shell 51, the shaft holes 53 are movably connected with the shafts of the driving worm gears 42 in interference fit, and the two driving worm gears 42 are symmetrically arranged on the inner side of the supporting shell 51.

[0031] Specifically, the side of the driving worm gear 42 is integrally provided with a supporting arm 41, one end of the supporting arm 41 away from the driving worm gear 42 is movably connected with a rotating lug plate 43, and the supporting arm 41 is movably connected with a sliding sleeve 44 through the rotating lug plate 43.

[0032] Specifically, the side of the sliding sleeve 44 is symmetrically fixedly connected with the rotating lug plate 43, the two sliding sleeves 44 are slidably connected with the two ends of the supporting sliding rod 3, one side of the sliding sleeve 44 away from the rotating lug plate 43 is integrally provided with a planar protrusion 45, and the planar protrusion 45 is slidably fitted with the U-shaped bracket 2.

[0033] Further, the rotating worm 6 comprises a rotating shaft 61 located on the side of the driving worm gear 42, the two ends of the rotating shaft 61 are symmetrically provided with worm screw teeth 62, and the two ends of the rotating shaft 61 are respectively fixedly connected with a rectangular connecting protrusion 63 and a manually rotating hanging ring 64.

[0034] By adopting the above technical scheme, the rotating shaft 61 is driven to rotate by the rectangular connecting protrusion 63 or the manually rotating hanging ring 64, the driving worm gear 42 is driven to rotate through the meshing between the worm screw teeth 62 and the driving worm gear 42, so that the other end of the supporting arm 41 is unfolded outward, the sliding sleeve 44 at the end of the supporting arm 41 is slidably fitted with the supporting sliding rod 3, the disc-shaped communication antenna 1 is unfolded, and the connection is automatically locked through the self-locking between the worm screw teeth 62 and the driving worm gear 42.

[0035] In the embodiment, the rotating shaft 61 is located at the inner side of the supporting shell 51, and the two ends of the rotating shaft 61 are movably connected with the worm positioning holes 54 corresponding to the two ends of the supporting shell 51, and the end of the rotating shaft 61 penetrates the worm positioning hole 54, so that the rotating shaft 61 can rotate at the inner side of the supporting shell 51.

[0036] Further, the worm screw teeth 62 are symmetrically meshed with the driven worm gears 42 at the corresponding positions, the rotating shaft 61 drives the worm screw teeth 62 to rotate, and the meshing of the worm screw teeth 62 and the driven worm gears 42 drives the driven worm gears 42 to rotate at the inner side of the supporting shell 51.

[0037] Further, the rectangular connecting protrusions 63 at the two ends of the rotating shaft 61 and the manual rotating hanging rings 64 are respectively located at the two ends of the supporting shell 51, when the motor is driven, the shaft coupling can be fixedly connected with the rectangular connecting protrusions 63, and the rotating worm 6 is automatically rotated by the motor.

[0038] When manually driven, the hook at the end of the extension rod can be hung in the manual rotating hanging ring 64, and then the rotating worm 6 is manually rotated by the extension rod.

[0039] Further, the two sides of the mounting plate 52 are provided with mounting holes in a rectangular array, and the bolts penetrate the mounting holes at the two sides of the mounting plate 52 and are fixedly connected with the wall, so that the fixed support 5 is fixedly connected to the side of the wall.

[0040] The working principle of the utility model is as follows: first, the mounting plate 52 at the side of the supporting shell 51 is fixed to the side of the wall, and the bolts penetrate the mounting holes at the two sides of the mounting plate 52 and are fixedly connected with the wall, so that the fixed support 5 is fixedly connected to the side of the wall, when manually operated, first, the hook at the end of the extension rod is hung in the manual rotating hanging ring 6, and then the rotating shaft 61 is rotated by the extension rod; when electrically driven, the motor is fixedly connected to the side of the wall, and the motor is located above the rectangular connecting protrusion 63, the rectangular connecting protrusion 63 and the output shaft of the motor are drivingly connected through the shaft coupling, the motor drives the rotating shaft 61 to rotate through the shaft coupling, the rotating shaft 61 drives the worm screw teeth 62 at the two ends to synchronously rotate, the meshing between the worm screw teeth 62 and the driven worm gears 42 drives the driven worm gears 42 to drive the supporting arm 41 to rotate, the supporting arms 41 symmetrically arranged at the ends are rotated to the side, the sliding fit between the sliding sleeve 44 and the supporting slide rod 3 expands the disc-shaped communication antenna 1, and when the disc-shaped communication antenna 1 is stored, only the rotating shaft 61 needs to be reversely rotated, and the self-locking effect between the worm screw teeth 62 and the driven worm gears 42 can make the disc-shaped communication antenna 1 stay at any position, the structure is simple, the operation is very convenient, and the labor intensity is effectively reduced.

[0041] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0042] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A retraction and extension mechanism for a communication antenna, characterized by: Including disc communication antenna (1), the side of disc communication antenna (1) is fixedly connected with U-shaped bracket (2), and the side of U-shaped bracket (2) is fixedly connected with support slide rod (3), and the other side of support slide rod (3) is movably connected with retractable structure; Retractable mechanism has fixed support (5), the side of fixed support (5) is movably connected with retractable connecting rod (4) in a symmetrical manner, and one end of retractable connecting rod (4) is movably connected with support slide rod (3), and the other end of retractable connecting rod (4) is drivingly connected with rotary worm (6).

2. The retraction mechanism of a communication antenna according to claim 1, wherein: The fixed support (5) has a support housing (51), the side of the support housing (51) is integrally provided with a mounting plate (52), and the both sides of the support housing (51) are symmetrically provided with shaft holes (53), and the both ends of the support housing (51) are provided with worm positioning holes (54).

3. The retraction mechanism of claim 2, wherein: The retractable connecting rod (4) includes a driven worm wheel (42) movably connected with the support housing (51), and the shaft rods at both ends of the driven worm wheel (42) are movably connected with the shaft holes (53) in interference fit, and the two driven worm wheels (42) are symmetrically arranged inside the support housing (51).

4. The retraction mechanism of claim 3, wherein: The side of the driven worm wheel (42) is integrally provided with a support arm (41), and one end of the support arm (41) away from the driven worm wheel (42) is movably connected with a rotary lug (43), and the support arm (41) is movably connected with a sliding sleeve (44) through the rotary lug (43).

5. The retraction mechanism of claim 4, wherein: The sliding sleeve (44) is symmetrically fixedly connected with a rotary lug (43), both the sliding sleeves (44) are slidably connected with both ends of the support slide rod (3), and one side of the sliding sleeve (44) away from the rotary lug (43) is integrally provided with a flat protrusion (45), and the flat protrusion (45) is slidably connected with the U-shaped bracket (2).

6. The retraction mechanism of claim 5, wherein: The rotary worm (6) includes a rotary shaft (61) located on the side of the driven worm wheel (42), and the both ends of the rotary shaft (61) are symmetrically provided with worm screw threads (62), and the both ends of the rotary shaft (61) are respectively fixedly connected with a rectangular connecting protrusion (63) and a manual rotary hanging ring (64).

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