Transmission for an antenna

Abstract

The present disclosure discloses a transmission device for an antenna, which comprises a first rotating part, a cross shaft and a second rotating part. The first rotating part is connected with a first connecting rod structure at its first end and is provided with a pair of first pivots at its second end; the cross shaft comprises a pair of first pivot matching parts and a pair of second pivot matching parts, and each first pivot matching part is arranged at an angle with the adjacent second pivot matching part, wherein the pair of first pivot matching parts are rotatably matched with the pair of first pivots; the second rotating part is connected with a second connecting rod structure at its first end and is provided with a pair of second pivots at its second end, wherein the pair of second pivots are rotatably matched with the pair of second pivot matching parts. The disclosed transmission device for an antenna can realize power reversing transmission, and when the distance between the power input shaft and the power output shaft changes, the power reversing transmission can be realized through flexible arrangement of the transmission device.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and specifically to a transmission device for an antenna. Background Technology

[0002] Mobile communication systems contain numerous base stations. Each base station includes one or more base station antennas. Base station antennas typically consist of multiple radiating elements (also called antenna elements). Due to the coverage or optimization requirements of mobile communication networks, the elevation pointing of the antenna beam generated by the base station antenna should be adjustable (e.g., through a phase shifter in the base station antenna). The antenna phase shifter can be used to adjust the phase of the components of the radio frequency signal transmitted or received through the array of antenna elements. By changing the phase distribution of the components of the radio frequency signal transmitted or received by the individual antenna elements of the array antenna, the downtilt angle of the antenna beam can be adjusted.

[0003] In existing electrically tunable base station antennas, the transmission device used for the antenna phase shifter is an important component, playing a crucial role in the product's structure and reliability, and also accounting for a considerable proportion of the product cost.

[0004] Existing transmission devices generally employ a retractable universal joint structure. However, the structural design of the universal joint limits their ability to handle power transmission with significant variations in input / output distance and direction. Furthermore, existing universal joint-based transmission devices are complex in structure, resulting in high costs for materials, molds, and manufacturing. Therefore, a novel transmission device is urgently needed to overcome these shortcomings, thereby improving antenna performance and reducing antenna manufacturing costs. Summary of the Invention

[0005] To address the aforementioned problems, this disclosure proposes a transmission device for an antenna, comprising:

[0006] The first rotating part has a first end connected to the first connecting rod structure and a pair of first pivot members at its second end;

[0007] A cross shaft includes a pair of first pivoting members and a pair of second pivoting members, wherein each first pivoting member is angled relative to an adjacent second pivoting member, and the pair of first pivoting members rotatably engages with the pair of first pivoting members; and

[0008] The second rotating part has a first end connected to the second connecting rod structure, and a pair of second pivot members at its second end, wherein the pair of second pivot members rotatably cooperate with the pair of second pivot mating members.

[0009] According to one embodiment of the present disclosure, the first rotating part and / or the second rotating part are provided with a limiting engagement member, wherein the limiting engagement member is used to cooperate with an external limiting member to restrict the movement of the first rotating part and / or the second rotating part.

[0010] According to one embodiment of the present disclosure, the limiting fitting is disposed at the first end of the first rotating part and / or the first end of the second rotating part;

[0011] When the limiting fitting is provided at the first end of the first rotating part, the limiting fitting is provided with a hook on the side away from the first end of the first rotating part, wherein the limiting fitting is engaged with the external limiting member via the hook to restrict the movement of the first rotating part.

[0012] When the limiting fitting is provided at the first end of the second rotating part, the limiting fitting is provided with a hook on the side away from the first end of the second rotating part, wherein the limiting fitting is engaged with the external limiting member via the hook to restrict the movement of the second rotating part.

[0013] According to one embodiment of this disclosure, the limiting fitting is a recess formed between the first end and the second end of the first rotating part and / or between the first end and the second end of the second rotating part.

[0014] According to one embodiment of this disclosure, one or more of a pair of first pivot members and a pair of second pivot members are protrusions, and the first pivot member or the second pivot member that mates with the protrusion has a groove.

[0015] According to one embodiment of this disclosure, one or more of a pair of first pivot fittings and a pair of second pivot fittings are protrusions, and the first or second pivot fitting that mates with the protrusion has a groove or mounting hole.

[0016] According to one embodiment of the present disclosure, the second end of the first rotating part has a pair of first elastic arms, each of the first elastic arms having a first pivot member, and at least one of the pair of first elastic arms and the pair of first pivot members of the cross shaft is provided with a first guide structure, wherein the length of the first elastic arm depends on the height of the protrusion, and the pair of first pivot members cooperate with the corresponding first pivot member by means of the first guide structure.

[0017] The first end of the first rotating part is provided with a first connecting fitting for connecting the first connecting rod structure.

[0018] According to one embodiment of the present disclosure, the second end of the second rotating part has a pair of second elastic arms, each of the second elastic arms having a second pivot member, and at least one of the pair of second elastic arms and the pair of second pivot members of the cross shaft is provided with a second guide structure, wherein the length of the second elastic arm depends on the height of the protrusion, and the pair of second pivot members cooperate with the corresponding second pivot member by means of the second guide structure.

[0019] The first end of the second rotating part is provided with a second mating part for connecting the second connecting rod structure;

[0020] The lengths of the first elastic arm and the second elastic arm range from 2mm to 20mm.

[0021] According to one embodiment of this disclosure, the first rotating portion includes a pair of symmetrically arranged first rotating sub-portions; and...

[0022] A first retaining member is provided in the first end of one of the first rotating sub-parts in a pair, and a first cooperating retaining member is provided in the first end of the other first rotating sub-part in a pair, wherein the pair of first rotating sub-parts are fixed together by the first retaining member and the first cooperating retaining member.

[0023] According to one embodiment of this disclosure, the second rotating portion includes a pair of symmetrically arranged second rotating sub-portions; and...

[0024] A second retaining member is provided in the first end of one of the pair of second rotating sub-parts, and a second cooperating retaining member is provided in the first end of the other pair of second rotating sub-parts, which cooperates with the first retaining member. The pair of second rotating sub-parts are fixed together by the second retaining member and the second cooperating retaining member.

[0025] According to one embodiment of this disclosure, the first rotating portion includes a pair of symmetrically arranged first rotating sub-portions; and...

[0026] A first hot melt element is provided in the first end of one of the pair of first rotating sub-parts, and a first groove matching the first hot melt element is provided in the first end of the other of the pair of first rotating sub-parts.

[0027] The first hot melt component and the first groove are melted and fixed to fix the pair of first rotating parts in a mating manner.

[0028] According to one embodiment of the present disclosure, one of the first rotating sub-parts in a pair is provided with two non-parallel first heat-fused elements at its first end, and the other of the first rotating sub-parts in a pair is provided with two first grooves at its first end, each first groove matching a corresponding first heat-fused element.

[0029] According to one embodiment of this disclosure, the second rotating portion includes a pair of symmetrically arranged second rotating sub-portions; and...

[0030] A second heat-melting element is provided in the first end of one of the pair of second rotating sub-parts, and a second groove matching the second heat-melting element is provided in the first end of the other pair of second rotating sub-parts.

[0031] The second hot melt component and the second groove are melted and fixed to fix a pair of second rotating parts in place.

[0032] According to one embodiment of the present disclosure, one of the second rotating sub-parts in a pair has two non-parallel second heat-melting elements at its first end, and the other of the second rotating sub-parts in a pair has two second grooves at its first end, each second groove matching a corresponding second heat-melting element.

[0033] According to one embodiment of this disclosure, the height of the protrusion ranges from 0.3 mm to 5 mm.

[0034] The transmission device for antennas according to this disclosure can realize power reversal transmission; in addition, the disclosed transmission device for antennas can also have a variety of flexible positioning and installation methods, which can reduce the design difficulty of antennas and reduce processing and assembly time; and when the rotation shaft of the phase shifter is different from the rotation shaft of the motor input in height and width direction, the length of the intermediate connecting rod structure can be adjusted to meet the actual needs. Attached Figure Description

[0035] Features, advantages, and other aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description, in which several embodiments of the disclosure are illustrated by way of example and not limitation, in the drawings:

[0036] Figures 1a-1h This is a schematic diagram of an example of a transmission device for an antenna based on the present disclosure.

[0037] Figure 2a , Figure 2b This is a schematic diagram of Example 2 of a transmission device for an antenna based on the present disclosure;

[0038] Figure 3a , Figure 3b This is a schematic diagram of Example 3 of a transmission device for an antenna based on the present disclosure;

[0039] Figure 4a , Figure 4b A schematic diagram of Example 4 of a transmission device for an antenna based on the present disclosure; and

[0040] Figures 5a-5c A schematic diagram of a transmission device for an antenna based on the present disclosure is shown. Detailed Implementation

[0041] In the following detailed description of preferred embodiments, reference will be made to the accompanying drawings, which form part of this invention. The accompanying drawings illustrate, by way of example, specific embodiments in which the invention can be implemented. The exemplary embodiments are not intended to be exhaustive of all embodiments according to the invention. It will be understood that other embodiments may be utilized, and structural or logical modifications may be made, without departing from the scope of the invention. Therefore, the following detailed description is not restrictive, and the scope of the invention is defined by the appended claims.

[0042] The terms “comprising,” “including,” and similar terms used herein should be understood as open-ended terms, meaning “including / including but not limited to,” implying that other content may also be included. The term “based on” means “at least partially based on.” The term “one embodiment” means “at least one embodiment”; the term “another embodiment” means “at least one additional embodiment,” and so on.

[0043] The technical problem to be solved by this invention is how to improve the transmission device used for antennas so that it can be flexibly applied to various types of antennas to achieve precise power transmission, while reducing the design and installation complexity of the transmission device.

[0044] To address the aforementioned technical problems, the transmission device for an antenna disclosed herein includes: a first rotating part, a cross shaft, and a second rotating part. The first rotating part is connected to a first connecting rod structure and has a pair of first pivot members at its second end; the cross shaft includes a pair of first pivot fittings and a pair of second pivot fittings, wherein the pair of first pivot fittings rotatably engages with the pair of first pivot members; the second rotating part is connected to a second connecting rod structure and has a pair of second pivot members at its second end, wherein the pair of second pivot members rotatably engages with the pair of second pivot fittings. The disclosed transmission device for an antenna can realize power reversing transmission, and when the distance between the power input shaft and the power output shaft changes, power reversing transmission can be achieved through flexible arrangement of the transmission device.

[0045] Example 1

[0046] Figures 1a-1h An example of a transmission device for an antenna according to the present disclosure is disclosed. In this example, the transmission device for the antenna includes: a first rotating part 100, a cross shaft 300, and a second rotating part 200. In this example, the first end 101 of the first rotating part 100 is connected to a first connecting rod structure, and its second end 102 is provided with a pair of first pivot members 111; the cross shaft 300 includes a pair of first pivot fitting members 310 and a pair of second pivot fitting members 320 arranged symmetrically in position; the first end 201 of the second rotating part 200 is connected to a second connecting rod structure, and its second end 202 is provided with a pair of second pivot members 211. Specifically, each first pivot fitting member 310 of the cross shaft 300 is arranged at an angle to the adjacent second pivot fitting member 320, and the pair of first pivot fitting members 310 rotatably cooperates with the pair of first pivot members 111, and the pair of second pivot fitting members 320 rotatably cooperates with the pair of second pivot members 211.

[0047] like Figure 1a and Figure 1b As shown, the second end 102 of the first rotating part 100 has a pair of first elastic arms 110, each first elastic arm 110 having a first pivot member 111, and at least one of the pair of first elastic arms 110 is provided with a first guide structure 112, such that a pair of first pivot fittings 310 of the cross shaft 300 engage with the corresponding first pivot member 111 by means of the first guide structure 112. Meanwhile, the first end 101 of the first rotating part 100 is provided with a first connecting fitting (not shown in the figure) for connecting the first connecting rod structure, wherein the first connecting fitting can be a hole or a groove.

[0048] In practical use, it is also preferable to design a first guide structure 112 for each first elastic arm 110, so that a pair of first pivot joints 310 of the cross shaft 300 respectively cooperate with a pair of first pivot joints 111 by means of the corresponding first guide structure 112.

[0049] In addition, in practical use, a first guide structure can be designed on one or both of the pair of first pivot fittings 310 of the cross shaft 300 to facilitate the engagement of the cross shaft 300 with the pair of first pivot fittings 111.

[0050] Furthermore, in this example, the second end of the second rotating part 200 has a pair of second elastic arms 210, each second elastic arm 210 having a second pivot member 211, and at least one of the pair of second elastic arms 210 is provided with a second guide structure 212, such that a pair of second pivot fittings 320 of the cross shaft 300 engage with the corresponding second pivot member 211 by means of the second guide structure 212. Meanwhile, the first end of the second rotating part 200 is provided with a second connecting fitting 204 for connecting the second connecting rod structure (the second connecting fitting 204 may be a hole or a groove).

[0051] Similarly, a second guide structure can be designed on one or both of the pair of second pivot fittings 320 of the cross shaft 300 to facilitate the engagement of the cross shaft 300 with the pair of second pivot fittings 211; or a second guide structure 212 can be designed for each second elastic arm 210 to facilitate the engagement of the cross shaft 300 with the pair of second pivot fittings 211.

[0052] like Figures 1b-1d As shown, a first recess 103 may be formed between the first end 101 and the second end 102 of the first rotating part 100. The first recess 103 is used to cooperate with the external limiting member 400 to limit the movement of the first rotating part 100.

[0053] Alternatively, a second recess 203 may be formed between the first end 201 and the second end 202 of the second rotating part 200. The second recess 203 is used to cooperate with the external limiting member 400 to limit the movement of the second rotating part 200.

[0054] In addition, such as Figure 1e and Figure 1f As shown, the first end 101 of the first rotating part 100 may also be provided with a limiting engagement member 140, which has a hook 141 on the side away from the first end of the first rotating part 100. Specifically, the limiting engagement member 140 engages with the external limiting member 400 via the hook 141 to restrict the movement of the first rotating part 100.

[0055] Alternatively, the first end of the second rotating part 200 may also be provided with a limiting engagement member, which has a hook 241 on the side away from the first end 201 of the second rotating part 200. Specifically, the limiting engagement member engages with the external limiting member 400 via the hook 241 to restrict the movement of the second rotating part 200.

[0056] In practical use, the first end of the first rotating part 100 and the first end of the second rotating part 200 can be designed to have a limiting fitting component, or the first rotating part 100 or the second rotating part 200 can be designed to have a limiting fitting component.

[0057] In addition, such as Figure 1a, Figure 1g and Figure 1h As shown, in this example, the first pivot fitting 310 and the second pivot fitting 320 are protrusions, and the first pivot fitting 111 that matches the first pivot fitting 310 and the second pivot fitting 211 that matches the second pivot fitting 320 both have the form of grooves or holes.

[0058] In this example, the length d2 of the first elastic arm 110 of the first rotating part 100 depends on the height d1 of the protrusion. The length of the second elastic arm 210 of the second rotating part 200 depends on the height d1 of the protrusion. Specifically, the height of the protrusion refers to the height to which the protrusion enters the groove.

[0059] In this embodiment, the height of the protrusion ranges from 0.3mm to 5mm, and the lengths of the first elastic arm 110 and the second elastic arm 210 can both range from 2mm to 20mm.

[0060] When the power output of the antenna's power output device (e.g., a motor) is not coaxial with the power input of the antenna phase shifter, at least one of the transmission devices disclosed in this example can be used to achieve power direction conversion.

[0061] Figures 5a-5c This illustration shows a specific scenario where the transmission device is applied to an antenna device. Since the driving device (e.g., motor 4000) and the phase shifter 5000 to be driven are not coaxial, two transmission devices are needed to change the direction of the driving force (or power) to enable the motor 4000 to drive the phase shifter 5000. The arrangement of the first and second transmission devices can change the direction of power transmission. Specifically, the motor 4000 drives the first linkage structure 1000 connected to the first transmission device to rotate, which in turn drives the second linkage structure 2000 connected to it to rotate, thereby causing the second transmission device to drive the third linkage structure 3000 to rotate, ultimately enabling the third linkage structure 3000 to drive the phase shifter 5000 to operate.

[0062] Specifically, Figure 5b yes Figure 5a The enlarged view of section A shows that one end of the first connecting rod structure 1000 is fixed in the first connecting fitting (e.g., connecting hole) of the first rotating part 100 of the first transmission device, and one end of the second connecting rod structure 2000 is fixed in the second connecting fitting (e.g., connecting hole) of the second rotating part 200 of the first transmission device. The limiting fitting of the first rotating part 100 of the first transmission device is fixed to the first external limiting member 6000. The first connecting rod structure 1000 and the second connecting rod structure 2000 are connected in a non-axial manner via the first transmission device.

[0063] Specifically, Figure 5c yes Figure 5a The enlarged view in section B shows that the other end of the second link structure 1000 is fixed in the first connecting fitting (e.g., connecting hole) of the first rotating part 100 of the second transmission device, and one end of the third link structure 3000 is fixed in the second connecting fitting (e.g., connecting hole) of the second rotating part 200 of the second transmission device. The limiting fitting of the second rotating part 200 of the second transmission device is fixed to the second external limiting member 7000. The second link structure 2000 and the third link structure 3000 are connected in a non-axial manner via the second transmission device.

[0064] In practical work, due to the characteristics of the cross shaft itself, the relative positions of the motor 4000 and the antenna phase shifter 5000 can not only be on different axes, but also on different horizontal planes. In this case, one or more transmission devices can be set to realize multiple driving force direction conversions, which improves the application range of the transmission device.

[0065] Example 2

[0066] like Figure 2a and Figure 2b As shown, the transmission device for an antenna disclosed in this example includes a first rotating part 100, a cross shaft 300, and a second rotating part 200. The structure of the cross shaft 300 disclosed in this example is similar to the structure of the cross shaft 300 disclosed in Example 1, and will not be described again here.

[0067] In this example, the first rotating part 100 includes a pair of symmetrically arranged first rotating sub-parts 120. One of the first rotating sub-parts 120 has a first retaining member (not shown in the figure) at its first end 101, and the other first rotating sub-part 120 has a first engaging retaining member 131 at its first end that cooperates with the first retaining member. In actual use, the pair of first rotating sub-parts 120 are fixed together by the cooperation of the first retaining member and the first engaging retaining member 131.

[0068] In this example, the second rotating part 200 includes a pair of symmetrically arranged second rotating sub-parts 220. A second retaining member 232 is provided in the second end 201 of one of the second rotating sub-parts 220, and a second cooperating retaining member 231 that cooperates with the second retaining member 232 is provided in the second end 201 of the other second rotating sub-part 220. The pair of second rotating sub-parts are fixed together by the cooperation of the second retaining member 232 and the second cooperating retaining member 231.

[0069] Furthermore, in practical designs, one or more first holding members and first holding mating members can be simultaneously provided in one first rotating sub-part, and one or more first holding members and first holding mating members can be simultaneously provided in another first rotating sub-part, so that the two first rotating sub-parts can be fixed together by the cooperation of the corresponding multiple first holding members and first holding mating members. A similar design also applies to the second rotating sub-part, which will not be elaborated here.

[0070] Alternatively, in this example, similar to Example 1 Figures 1b-1d As shown, a first recess 103 can also be designed between the first end and the second end of the first rotating part 100. The first recess 103 is used to cooperate with an external limiting member to restrict the movement of the first rotating part 100. At the same time, a second recess 203 can also be formed between the first end and the second end of the second rotating part 200. The second recess 203 is used to cooperate with an external limiting member to restrict the movement of the first rotating part 100.

[0071] Furthermore, similar to Example 1 Figure 1e and Figure 1f The first end of the first rotating part 100 may also be provided with a limiting engagement member, which has a hook on the side away from the first end of the first rotating part 100. Specifically, the limiting engagement member engages with an external limiting member via the hook to restrict the movement of the first rotating part 100. A similar structure may also be provided at the first end of the second rotating part 200.

[0072] Additionally, similar to Example 1, one or more of the pair of first pivot fittings 310 and the pair of second pivot fittings 320 of the cross shaft 300 may be protrusions, and the first pivot fitting 111 that matches the first pivot fitting 310 and the second pivot fitting 211 that matches the second pivot fitting 320 may both have the form of grooves or holes.

[0073] In this embodiment, the height of the protrusion ranges from 0.3mm to 5mm, and the lengths of the first elastic arm 110 and the second elastic arm 210 can both range from 2mm to 20mm.

[0074] The transmission device disclosed in this example, after a pair of first rotating parts are respectively engaged with the cross shaft, achieves the engagement of the first rotating part with the cross shaft by utilizing the engagement of the first holding member and the first holding engagement member; and after a pair of second rotating parts are respectively engaged with the cross shaft, achieves the engagement of the second rotating part with the cross shaft by utilizing the engagement of the second holding member and the second holding engagement member.

[0075] The transmission device disclosed in this example is simple to assemble, flexible to use, and applicable to various types of antennas.

[0076] Example 3

[0077] like Figure 3a and Figure 3b As shown, the transmission device for an antenna disclosed in this example includes a first rotating part 100, a cross shaft 300, and a second rotating part 200. The structure of the cross shaft 300 disclosed in this example is similar to the structure of the cross shaft 300 disclosed in Example 1, and will not be described again here.

[0078] In this example, the first rotating part 100 includes a pair of symmetrically arranged first rotating sub-parts 120. One of the first rotating sub-parts 120 has a first heat-fused element 133 within its first end 101, and the other first rotating sub-part 120 has a first groove (not shown in the figure) within its first end 101 that matches the first heat-fused element 133. In actual use, the first heat-fused element 133 and the first groove are melted and fixed to secure the pair of first rotating sub-parts 120 together.

[0079] Additionally, the second rotating part 200 includes a pair of symmetrically arranged second rotating sub-parts 220. One of the second rotating sub-parts 220 has a second heat-fused element 233 at its first end, and the other second rotating sub-part 220 has a second groove (not shown in the figure) at its first end 201 that matches the second heat-fused element 233. In actual use, the second heat-fused element 233 and the second groove are melted and fixed to secure the pair of second rotating sub-parts.

[0080] Furthermore, in practical use, one or more first heat-fused elements 133 and first grooves 134 can be simultaneously provided in one first rotating sub-part 120, and one or more first heat-fused elements 133 and first grooves 134 can be simultaneously provided in another first rotating sub-part, so that the two first rotating sub-parts can be fixed together by the cooperation of the corresponding multiple first heat-fused elements 133 and first grooves 134. A similar design is also applicable to the second rotating sub-part, which will not be described in detail here.

[0081] In addition, in this example, one of the pair of first rotating sub-parts 120 has a mounting member 135 and / or a mounting hole 136 in its first end 101, and the other first rotating sub-part 120 has a mounting hole 136 that matches the mounting member 135 and / or a mounting member 135 that matches the mounting hole 136 in its first end 201; one of the pair of second rotating sub-parts 220 has a mounting member 235 and / or a mounting hole 136 in its first end 201, and the other second rotating sub-part 220 has a mounting hole 136 that matches the mounting member 235 and / or a mounting member that matches the mounting hole 136 in its first end 201.

[0082] Furthermore, in this example, similar to Example 1... Figures 1b-1dAs shown, a first recess 103 can also be designed between the first end and the second end of the first rotating part 100. The first recess 103 is used to cooperate with an external limiting member to restrict the radial movement of the first rotating part 100. At the same time, a second recess 203 can also be formed between the first end and the second end of the second rotating part 200. The second recess 203 is used to cooperate with an external limiting member to restrict the radial movement of the first rotating part 100.

[0083] Alternatively, similar to Example 1 Figure 1e and Figure 1f The first end of the first rotating part 100 may also be provided with a limiting engagement member, which has a hook on the side away from the first end of the first rotating part 100. Specifically, the limiting engagement member engages with an external limiting member via the hook to restrict the movement of the first rotating part 100. A similar structure may also be provided at the first end of the second rotating part 200.

[0084] Additionally, similar to Example 1, one or more of the first pivot fitting 310 and the second pivot fitting 320 of the cross shaft 300 may be a protrusion, and the first pivot fitting 111 or the second pivot fitting 211 that matches the protrusion has a groove or a mounting hole.

[0085] In this embodiment, the height of the protrusion ranges from 0.3mm to 5mm, and the lengths of the first elastic arm 110 and the second elastic arm 210 can both range from 2mm to 20mm.

[0086] The transmission device disclosed in this example, after a pair of first rotating parts are respectively engaged with the cross shaft, uses a hot-melt technique (e.g., ultrasonic hot-melt technique) to melt the hot-melt part with the corresponding groove so that the pair of first rotating parts are integrally formed, thereby achieving the engagement of the first rotating parts with the cross shaft; and after a pair of second rotating parts are respectively engaged with the cross shaft, uses a hot-melt technique (e.g., ultrasonic hot-melt technique) to melt the hot-melt part with the corresponding groove so that the pair of second rotating parts are integrally formed, thereby achieving the engagement of the second rotating parts with the cross shaft.

[0087] The transmission device disclosed in this example is simple to assemble, has good integrity and high strength, is flexible in use, and can be applied to various types of antennas.

[0088] Example 4

[0089] like Figure 4a , Figure 4bAs shown, another example of a transmission device for an antenna is disclosed. In this example, the structure of the first rotating part 100 and the second rotating part 200 is similar to that of the first rotating part 100 and the second rotating part 200 in Example 1; alternatively, in practical design, the structure of the first rotating part 100 and the second rotating part 200 can also be designed to be similar to that of the first rotating part 100 and the second rotating part 200 in Examples 2 and 3.

[0090] In this example, the first pivot member 111 of the first rotating part 100 and the second pivot member 211 of the second rotating part 200 are both protrusions. The first pivot fitting member 310 that matches the first pivot member 111 has a groove, and the second pivot fitting member 320 that matches the second pivot member 211 has a groove.

[0091] In practical use, one or more of the pair of first pivot fittings 310 and the pair of second pivot fittings 320 of the cross shaft 300 can be designed to have a groove; correspondingly, one or more of the pair of first pivot fittings 111 and the pair of second pivot fittings 211 can be designed as protrusions.

[0092] In other words, the multiple pivot joints of the cross shaft, the pivot joints of the first rotating part and the second rotating part can be flexibly designed to achieve rotatable engagement between the cross shaft and the first rotating part and the second rotating part.

[0093] The above descriptions are merely optional embodiments of this disclosure and are not intended to limit the embodiments of this disclosure. For those skilled in the art, various modifications and variations can be made to the embodiments of this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this disclosure should be included within the protection scope of the embodiments of this disclosure.

[0094] While embodiments of this disclosure have been described with reference to several specific examples, it should be understood that the embodiments of this disclosure are not limited to the specific embodiments disclosed. The embodiments of this disclosure are intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. The scope of the appended claims is to be interpreted in the broadest possible sense, thereby encompassing all such modifications and equivalent structures and functions.

Claims

1. A transmission device for an antenna, characterized in that, The transmission device includes: The first rotating part has a first end connected to the first connecting rod structure and a pair of first pivot members at its second end; A cross shaft includes a pair of first pivoting members and a pair of second pivoting members, wherein each first pivoting member is angled relative to an adjacent second pivoting member, and the pair of first pivoting members rotatably engages with the pair of first pivoting members; and The second rotating part has a first end connected to the second connecting rod structure and a second end provided with a pair of second pivot members, wherein the pair of second pivot members can rotatably cooperate with a pair of second pivot mating members; The second end of the first rotating part has a pair of first elastic arms, each of the first elastic arms having the first pivot member; The length of the first elastic arm depends on the height of the protrusion; The first rotating part includes a pair of first rotating sub-parts arranged symmetrically; and, A first hot melt element is provided in the first end of one of the pair of first rotating sub-parts, and a first groove matching the first hot melt element is provided in the first end of the other of the pair of first rotating sub-parts. Specifically, the first hot melt component and the first groove are melted and fixed to fit and fix the pair of first rotating parts; One of the first rotating sub-parts in a pair has two non-parallel first hot melt elements at its first end, and the other of the first rotating sub-parts in a pair has two first grooves at its first end, each first groove matching a corresponding first hot melt element.

2. The transmission device for an antenna according to claim 1, characterized in that, The first rotating part and / or the second rotating part are provided with a limiting engagement member, wherein the limiting engagement member is used to cooperate with an external limiting member to restrict the movement of the first rotating part and / or the second rotating part.

3. The transmission device for an antenna according to claim 2, characterized in that, The limiting fitting is disposed at the first end of the first rotating part and / or the first end of the second rotating part; When the limiting fitting is provided at the first end of the first rotating part, the limiting fitting is provided with a hook on the side away from the first end of the first rotating part, wherein the limiting fitting is engaged with the external limiting member via the hook to restrict the movement of the first rotating part. When the limiting fitting is provided at the first end of the second rotating part, the limiting fitting is provided with a hook on the side away from the first end of the second rotating part, wherein the limiting fitting is engaged with the external limiting member via the hook to restrict the movement of the second rotating part.

4. The transmission device for an antenna according to claim 2, characterized in that, The limiting fitting is a recess formed between the first end and the second end of the first rotating part and / or between the first end and the second end of the second rotating part.

5. The transmission device for an antenna according to claim 1, characterized in that, One or more of the pair of first pivot members and the pair of second pivot members are protrusions, and the first pivot member or the second pivot member that mates with the protrusion has a groove.

6. The transmission device for an antenna according to claim 1, characterized in that, One or more of the pair of first pivot fittings and the pair of second pivot fittings are protrusions, and the first or second pivot fitting that mates with the protrusion has a groove or mounting hole.

7. The transmission device for an antenna according to claim 5 or 6, characterized in that, At least one of the pair of first elastic arms and the pair of first pivot joints of the cross shaft is provided with a first guide structure, and the pair of first pivot joints engage with the corresponding first pivot joints by means of the first guide structure; the first end of the first rotating part is provided with a first connecting joint for connecting the first linkage structure.

8. The transmission device for an antenna according to claim 7, characterized in that, The second end of the second rotating part has a pair of second elastic arms, each of the second elastic arms having a second pivot member, and at least one of the pair of second elastic arms and the pair of second pivot members of the cross shaft is provided with a second guide structure, wherein the length of the second elastic arm depends on the height of the protrusion, and the pair of second pivot members cooperate with the corresponding second pivot member by means of the second guide structure. The first end of the second rotating part is provided with a second mating part for connecting the second connecting rod structure; The lengths of the first elastic arm and the second elastic arm range from 2mm to 20mm.

9. The transmission device for an antenna according to claim 5 or 6, characterized in that, The first rotating part includes a pair of first rotating sub-parts arranged symmetrically; and, A first retaining member is provided in the first end of one of the first rotating sub-parts in a pair, and a first cooperating retaining member is provided in the first end of the other first rotating sub-part in a pair, wherein the pair of first rotating sub-parts are fixed together by the first retaining member and the first cooperating retaining member.

10. The transmission device for an antenna according to claim 9, characterized in that, The second rotating part includes a pair of second rotating sub-parts arranged symmetrically; and, A second retaining member is provided in the first end of one of the pair of second rotating sub-parts, and a second cooperating retaining member is provided in the first end of the other pair of second rotating sub-parts, which cooperates with the first retaining member. The pair of second rotating sub-parts are fixed together by the second retaining member and the second cooperating retaining member.

11. The transmission device for an antenna according to claim 1, characterized in that, The second rotating part includes a pair of second rotating sub-parts arranged symmetrically; and, A second heat-melting element is provided in the first end of one of the pair of second rotating sub-parts, and a second groove matching the second heat-melting element is provided in the first end of the other pair of second rotating sub-parts. The second hot melt component and the second groove are melted and fixed to fix a pair of second rotating parts in place.

12. The transmission device for an antenna according to claim 11, characterized in that, One of the pair of second rotating sub-parts has two non-parallel second hot melt elements at its first end, and the other of the pair of second rotating sub-parts has two second grooves at its first end, each second groove matching the corresponding second hot melt element.

13. The transmission device for an antenna according to claim 5 or 6, characterized in that, The height of the protrusion ranges from 0.3mm to 5mm.

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