Transmission device for indicating downward inclination angle of antenna and antenna

Abstract

The utility model relates to a transmission device used for indicating the downward inclination angle of an antenna and the antenna, the transmission device comprises a fixed cavity, the fixed cavity is provided with an accommodating cavity, and the inner wall of the accommodating cavity is provided with a first guide member extending along the longitudinal axis of the fixed cavity; the push-pull piece is contained in the containing cavity, and the push-pull piece is provided with a second guide piece matched with the first guide piece in shape so that the push-pull piece can move relative to the fixed cavity along the longitudinal axis of the fixed cavity, and the push-pull piece can move relative to the fixed cavity along the longitudinal axis of the fixed cavity. A third guide piece is further arranged on the circumferential surface of the push-pull piece, and the third guide piece is spirally arranged on the circumferential surface of the push-pull piece; and the rotating piece is provided with a fourth guide piece, and the fourth guide piece is matched with the third guide piece in shape, so that the rotating piece can rotate around the longitudinal axis when the push-pull piece linearly moves along the longitudinal axis.

Description

Technical Field

[0001] This utility model relates to the field of communications, and more specifically to a transmission device for indicating the downtilt angle of an antenna, and an antenna having the above-described transmission device. Background Technology

[0002] In recent years, with the development of information and communication technologies such as mobile internet and the Internet of Things, data traffic has experienced explosive growth, leading to increasingly higher requirements for the signal transmission and reception performance of base station antennas. With the development of mobile communication technology, 5G systems have become increasingly widespread, and the proportion of 5G base stations being deployed is also rising. However, whether it's newly deployed 5G base station antennas or existing 3G and 4G base station antennas, the downtilt angle of the base station antenna is crucial to key site operation indicators such as network efficiency, signal coverage area, and communication quality.

[0003] Unlike the method of changing the antenna downtilt angle by directly adjusting the mechanical tilt angle of the mounting bracket at the communication site or communication tower, the method of changing the antenna beam by remotely adjusting the phase shifter reduces labor costs and the impact on electrical parameters, meeting the operating conditions while improving work efficiency.

[0004] The downtilt adjustment display device, which is connected to the internal transmission device of the integrated antenna, can clearly and intuitively indicate the specific value of the internal electrical downtilt angle of the antenna. This reduces the length of the packaging and avoids problems such as damage, jamming, and poor waterproofing of the antenna unit caused by conventional indicators under different working conditions.

[0005] CN106159441A discloses a schematic diagram of an angle indicator. In this patent application, reference numeral 11 represents a housing with a window, reference numeral 14 represents an external traction mechanism interface, and reference numeral 19 represents a retaining spring reset element. This angle display device utilizes external traction force to overcome the retraction force of the reset element, and relies on the mating parts to cause relative rotation of components such as the angle disc to display the angle. This structural arrangement places relatively stringent requirements on the traction force of the antenna motor. Moreover, when the electric tilt angle of the antenna is located at a non-preset angle of the indicator, the internal structure of the antenna connected to the traction mechanism is under stress for a long time, which is detrimental to the stability of electrical performance. In addition, the reliability of the torsion spring-type retraction element under prolonged tension and harsh temperature conditions is questionable.

[0006] Furthermore, patent application CN206163713U discloses a base station antenna and its electrical downtilt display device. Within this patent application... Figure 2The diagram illustrates its implementation. The indicator mark of this utility model is printed on the outer or inner side of the lower end cover of the base station antenna. It is placed on the outside or inside of the antenna housing in conjunction with the pointer. In order to adapt to different phase shifter strokes, the driven gear set or reduction gearbox may have a structure that is too large or needs to be redesigned. When the pointer is placed on the outside, the reliability of rotation in response to different climatic conditions is insufficient. When the pointer is placed on the inside, it affects the internal assembly and display effect. Utility Model Content

[0007] In order to solve the technical problems existing in the prior art, namely that the downtilt angle indicator device has too demanding requirements on traction force and poor versatility, the inventor of this utility model innovatively thought of using the cooperation of push-pull and rotating parts to convert linear motion into rotational motion, so as to be compatible with most antennas and make the display of downtilt angle more convenient and flexible. To achieve the aforementioned technical effects, a first aspect of this utility model provides a transmission device for indicating the downtilt angle of an antenna. The transmission device includes: a fixed cavity having a receiving cavity, the inner wall of which has a first guide extending along the longitudinal axis of the fixed cavity; a push-pull member housed within the receiving cavity, the push-pull member having a second guide that mates with the shape of the first guide, allowing the push-pull member to move relative to the fixed cavity along its longitudinal axis; wherein a third guide is also provided on the circumferential surface of the push-pull member, the third guide being helically disposed on the circumferential surface of the push-pull member; and a rotating member having a fourth guide that mates with the shape of the third guide, allowing the rotating member to rotate around the longitudinal axis when the push-pull member moves linearly along its longitudinal axis.

[0008] In the transmission device according to this utility model, the push-pull member can move linearly relative to the fixed cavity by means of the cooperation of the first and second guide members. While the push-pull member is moving linearly, the rotating member can rotate around the longitudinal axis by means of the cooperation of the third and fourth guide members, thereby enabling accurate display of the antenna's downtilt angle. Furthermore, the transmission device for indicating the antenna's downtilt angle proposed according to this utility model has good versatility and can be adapted to most applications of antenna downtilt angle display.

[0009] In the technical solution according to this utility model, the transmission device further includes an indicator mark disposed at the end of the rotating member. In this way, after the rotating member rotates, the position of the indicator mark on it changes accordingly, thereby allowing the user to easily observe the position of the indicator mark and thus determine the size of the antenna's downtilt angle.

[0010] In the technical solution according to this utility model, the transmission device further includes an end cover, which is fixedly connected to the fixed cavity and has circumferential scale markings on its surface. In this way, after the rotating component rotates, the position of the indicator markings changes accordingly, allowing the user to easily observe the position of the indicator markings using the circumferential scale markings, thereby determining the magnitude of the antenna's downtilt angle.

[0011] In the technical solution according to this utility model, the transmission device further includes a driving member, which is fixedly connected to the push-pull member via a notch structure on the cavity wall of the fixed cavity. In this way, the driving member can, for example, be connected to a drive motor, and its fixed connection to the push-pull member via the notch structure on the cavity wall of the fixed cavity ensures that the movement of the drive motor does not interfere with the fixed cavity. That is, because the fixed cavity has the notch structure, it does not affect the movement of the driving member, thereby enabling the driving member to drive the push-pull member to move, and ultimately to drive the rotating member to move, thus displaying the downtilt angle of the antenna.

[0012] In the technical solution according to this utility model, the push-pull member is sleeved within the cavity formed by the rotating member, or the rotating member is sleeved within the cavity formed by the push-pull member. Those skilled in the art should understand that both of the above-disclosed arrangements—that is, the push-pull member being sleeved within the cavity formed by the rotating member, or the rotating member being sleeved within the cavity formed by the push-pull member—are feasible, as long as the linear movement of the push-pull member can drive the rotation of the rotating member, thereby displaying the antenna's downtilt angle. These technical solutions all fall within the protection scope of this utility model.

[0013] In the technical solution according to this utility model, one of the first guide member and the second guide member is constructed as either a protrusion or a groove, and the other of the first guide member and the second guide member is constructed as either a protrusion or a groove. Those skilled in the art should understand that both configurations disclosed herein—that is, one of the first guide member and the second guide member being constructed as either a protrusion or a groove, and the other of the first guide member and the second guide member being constructed as either a protrusion or a groove—are feasible, as long as the push-pull member can move linearly relative to the fixed cavity, thereby making necessary preparations for the downward tilt angle of the display antenna. These technical solutions all fall within the protection scope of this utility model.

[0014] In the technical solution according to this utility model, one of the third guide member and the fourth guide member is constructed as either a protrusion or a groove, and the other of the third guide member and the fourth guide member is constructed as either a protrusion or a groove. Those skilled in the art should understand that both configurations disclosed herein—that is, one of the third guide member and the fourth guide member being constructed as either a protrusion or a groove, and the other of the third guide member and the fourth guide member being constructed as either a protrusion or a groove—are feasible, as long as the linear movement of the push-pull member can drive the rotation of the rotating member, thereby displaying the antenna's downtilt angle. These technical solutions all fall within the protection scope of this utility model.

[0015] In the technical solution according to this utility model, one of the push-pull member and the rotating member is provided with a push arm structure, and the other of the push-pull member and the rotating member is provided with a counter-push arm structure. This arrangement stabilizes the contact and transmission between the push-pull member and the rotating member, thereby improving the operational stability of the transmission device according to this utility model.

[0016] In the technical solution according to this utility model, the transmission device further includes a torsion spring disposed between the rotating member and the fixed cavity. This allows the transmission device according to this utility model to have a reaction force opposite to the driving force of the push-pull member, thereby enabling the transmission device according to this utility model to display the tilt angle more accurately.

[0017] In the technical solution according to this utility model, the transmission device further includes a stop member disposed at the end of the rotating member, and the stop member is fixedly connected to the fixed cavity. This arrangement ensures that the rotating member does not move linearly with the push-pull member, but rather rotates, thereby increasing the transmission efficiency of the transmission device according to this utility model.

[0018] In the technical solution according to this utility model, the scale mark or the indicator mark is formed by adhesive, screen printing or spray painting.

[0019] Furthermore, a second aspect of this invention discloses an antenna comprising the transmission device described in the first aspect of this invention.

[0020] In summary, in the transmission device and corresponding antenna according to this utility model, the push-pull member can move linearly relative to the fixed cavity by means of the cooperation of the first and second guide members. When the push-pull member moves linearly, the rotating member can rotate around the longitudinal axis by means of the cooperation of the third and fourth guide members, thereby enabling accurate display of the antenna's downtilt angle. Furthermore, the transmission device for indicating the antenna's downtilt angle proposed according to this utility model has good versatility and can be adapted to most applications of antenna downtilt angle display. Attached Figure Description

[0021] The features, advantages, and other aspects of the various embodiments of the present invention will become more apparent from the accompanying drawings and the following detailed description, in which several embodiments of the present invention are shown by way of example and not limitation, in the drawings:

[0022] Figure 1 A schematic diagram of a transmission device according to an embodiment of the present invention is shown;

[0023] Figure 2 A schematic diagram of the connection of the drive component of a transmission device according to an embodiment of the present invention is shown;

[0024] Figure 3 A schematic diagram of the fixed cavity of a transmission device according to an embodiment of the present invention is shown;

[0025] Figure 4 A schematic diagram of a push-pull component of a transmission device according to an embodiment of the present invention is shown;

[0026] Figure 5 A schematic diagram of the rotating component of a transmission device according to an embodiment of the present invention is shown;

[0027] Figure 6 A schematic diagram of the end of the rotating member of a transmission device according to an embodiment of the present invention is shown; and

[0028] Figure 7 A schematic diagram of the end of a transmission device according to an embodiment of the present invention is shown. Detailed Implementation

[0029] The following describes various exemplary embodiments of the present invention in detail with reference to the accompanying drawings. While the exemplary methods and apparatuses described below include software and / or firmware executed on hardware among other components, it should be noted that these examples are merely illustrative and should not be considered limiting. For example, it is conceivable that any or all hardware, software, and firmware components may be implemented exclusively in hardware, exclusively in software, or in any combination of hardware and software. Therefore, although exemplary methods and apparatuses have been described below, those skilled in the art will readily understand that the examples provided are not intended to limit the ways in which these methods and apparatuses may be implemented.

[0030] Furthermore, the flowcharts and block diagrams in the accompanying drawings illustrate the possible architecture, functions, and operations of the methods and systems according to various embodiments of the present invention. It should be noted that the functions indicated in the blocks may occur in a different order than that shown in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, or they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the flowcharts and / or block diagrams, and combinations of blocks in the flowcharts and / or block diagrams, may be implemented using a dedicated hardware-based system that performs the specified functions or operations, or using a combination of dedicated hardware and computer instructions.

[0031] As mentioned above, the existing technology has the following technical problems: the downtilt angle indicator has too demanding requirements on traction force and poor versatility. The inventor of this utility model innovatively thought of using the combination of push-pull and rotating parts to convert linear motion into rotational motion, so as to be compatible with most antennas and make the display of downtilt angle more convenient and flexible. In summary, to achieve the aforementioned technical effects, the first aspect of this utility model provides a transmission device for indicating the downtilt angle of an antenna. The transmission device includes: a fixed cavity having a receiving cavity, the inner wall of which has a first guide extending along the longitudinal axis of the fixed cavity; a push-pull member housed within the receiving cavity, the push-pull member having a second guide that mates with the shape of the first guide, allowing the push-pull member to move relative to the fixed cavity along its longitudinal axis; wherein a third guide is helically disposed on the circumferential surface of the push-pull member; and a rotating member having a fourth guide that mates with the shape of the third guide, allowing the rotating member to rotate around the longitudinal axis when the push-pull member moves linearly along its longitudinal axis. In the transmission device according to this utility model, the push-pull member can move linearly relative to the fixed cavity by means of the cooperation of the first and second guides. When the push-pull component moves linearly, the cooperation of the third and fourth guide components allows the rotating component to rotate around the longitudinal axis as the push-pull component moves linearly along the longitudinal axis, thereby enabling the antenna's downtilt angle to be accurately displayed. Furthermore, the transmission device for indicating the antenna's downtilt angle proposed in this invention has good versatility and can be adapted to most applications requiring antenna downtilt angle display.

[0032] The following will be combined with the appendix Figure 1 To be continued Figure 7 This describes the transmission device proposed according to the present invention. Among them, Figure 1 A schematic diagram of a transmission device according to an embodiment of the present invention is shown. Figure 2 A schematic diagram of the connection of the drive component of a transmission device according to an embodiment of the present invention is shown. Figure 3 A schematic diagram of the fixed cavity of the transmission device according to an embodiment of the present invention is shown.

[0033] Figure 4 A schematic diagram of a push-pull member of a transmission device according to an embodiment of the present invention is shown. Figure 5 A schematic diagram of the rotating component of a transmission device according to an embodiment of the present invention is shown. Figure 6A schematic diagram of the end of the rotating member of a transmission device according to an embodiment of the present invention is shown, while Figure 7 A schematic diagram of the end of a transmission device according to an embodiment of the present invention is shown.

[0034] from Figure 1 As can be seen from this, the transmission device for indicating the downtilt angle of an antenna proposed in this utility model includes: a fixed cavity 11, the fixed cavity 11 having a receiving cavity, and a first guide member 111 extending along the longitudinal axis of the fixed cavity 11 on the inner wall of the receiving cavity. Figure 1 Not shown, will be obtained by means of Figure 3 Described as, for example, a guide groove; a push-pull member 12, which is received in the receiving cavity of the fixed cavity 11, and the push-pull member 12 has a second guide member 121 that shaped to mate with the first guide member 111. Figure 1 Not shown, will be obtained by means of Figure 4 Described, for example, as a protruding strip, such that the push-pull member 12 is movable relative to the fixed cavity 11 along the longitudinal axis of the fixed cavity 11, wherein a third guide member 123 is further provided on the circumferential surface of the push-pull member 12. Figure 1 Not shown, will be obtained by means of Figure 4 Described as, for example, a guide groove), the third guide 123 is helically disposed on the circumferential surface of the push-pull member 12; and a rotating member 13, on which a fourth guide 132 is disposed ( Figure 1 Not shown, will be obtained by means of Figure 5 Described as, for example, a protruding protrusion), the fourth guide 132 is shaped to fit the third guide 123 so that the rotating member 13 can rotate about the longitudinal axis when the push-pull member 12 moves linearly along the longitudinal axis. The transmission device disclosed according to this utility model solves the problems of poor indicating accuracy, complex structure, and poor display effect in existing tilt angle display and adjustment devices. It also solves the problems of poor adaptability of tilt angle display and adjustment devices to different strokes and types of phase shifters, and the inflexible structure adjustment. Figure 1In the illustrated embodiment, the first guide 111 is implemented as a groove, while the corresponding second guide 121 is implemented as a protrusion. However, those skilled in the art should understand that as long as the fit and positioning can be achieved, that is, one of the first and second guides can be constructed as either a protrusion or a groove, and the other of the first and second guides can be constructed as either a protrusion or a groove. Those skilled in the art should understand that both configurations disclosed herein, i.e., one of the first and second guides being constructed as either a protrusion or a groove, and the other of the first and second guides being constructed as either a protrusion or a groove, are feasible, as long as the push-pull member can move linearly relative to the fixed cavity, thereby making necessary preparations for the downward tilt angle of the display antenna. These technical solutions will fall within the protection scope of this utility model. That is, the transmission device may also include a driving member ( Figure 1 Not shown, will be obtained by means of Figure 2 Described as, for example, a push-pull rod 15, the drive member 15 is fixedly connected to the push-pull member 12 via a notch structure 112 on the cavity wall of the fixed cavity 11. In this way, the drive member 15 can be connected to a drive motor, for example, and fixedly connected to the push-pull member 12 via the notch structure 112 on the cavity wall of the fixed cavity 11, so that the movement of the drive motor does not interfere with the fixed cavity 11. That is, the fixed cavity 11, due to the notch structure 112, does not affect the movement of the drive member 15, thereby enabling the drive member 15 to drive the push-pull member 12 to move, and ultimately to drive the rotating member to move, thereby displaying the downtilt angle of the antenna. A connecting structure 151 can be separately provided between the drive member 15 and the push-pull member 12, for example; of course, this connecting structure 151 can also be integrally formed with the drive member 15 or the push-pull member 12, for example.

[0035] More specifically, such as Figure 1The diagram shows a front view of the base station antenna angle display adjustment device. The transmission device depicted comprises a fixed cavity 11, a push-pull member 12, an internal rotating member 13, and a cover plate 14. The fixed cavity 11 has multiple closed or semi-closed receiving chambers. The first receiving chamber can accommodate the push-pull member 12 and the internal rotating member 13. The first receiving chamber of the fixed cavity 11 may be provided with a feature 111 (e.g., the guide groove shown in the diagram), which cooperates with a feature 121 (e.g., a guide strip) on the push-pull member 12 to achieve functions such as maintaining the directionality of movement of the accommodated components, protecting the accommodated components from being affected, and enhancing the reliability of component cooperation. The power of the driving device 15 (e.g., implemented as a driving member 15) is connected to the push-pull member 12 in the transmission device via a feature 151 optionally provided on itself, and the power is input to the antenna downtilt angle display adjustment device. This feature 151 can also be configured as a separate adapter to realize the power input. Under different operating conditions, a notch feature 112 can be provided on the fixed cavity 11 to realize functions such as accommodating the adapter 151 and maintaining the direction of movement. The push-pull member 12 is provided with a push arm feature 122, and the internal rotating member 13 is provided with a counter-push arm structure 131. Under the action of input power, the push-pull member 12 will move linearly. When it reaches the preset stroke, the push arm feature 122 on the push-pull member 12 will cooperate with the counter-push arm structure 131 of the internal rotating member, so that the internal rotating member 13 will rotate. At the same time, a guide groove feature 123 can be provided on the push-pull member 12, which cooperates with the protrusion feature 132 on the internal rotating member 13. Under the combined action of input power and the two cooperating features, the push-pull member 12 can drive the internal rotating member 13 to rotate.

[0036] Furthermore, the internal rotating component 13 is provided with a fixing feature 133, which can cooperate with the feature 213 provided in the second receiving chamber of the fixed cavity 11, thereby suppressing the linear motion tendency of the internal rotating component 13. Similarly, the feature 133 of the internal rotating component 13 and the feature 213 on the fixed cavity 11 do not necessarily have corresponding connecting features. Instead, a cover plate 14 is preferably provided, and the cover plate 14 cooperates with the fixed cavity 11 to enhance the overall sealing of the transmission device and suppress the linear motion tendency of the internal rotating component 13.

[0037] Furthermore, the internal rotating member 13 may be provided with a feature 134 capable of accommodating and fixing, and the fixing cavity 11 or cover plate may be provided with a corresponding feature 113 capable of accommodating and fixing. The accommodating chamber in the fixing cavity 11 may be provided and accommodate a rotating member 16, for example, implemented as a torsion spring. One end of the rotating member 16 engages with a feature provided in the fixing cavity or cover plate, and the other end engages with feature 134. This rotating member 16 can cause the internal rotating member 13 to generate a rotational tendency opposite to the direction of movement driven by the push-pull member 12.

[0038] from Figure 1As shown in the schematic diagram of the transmission device, the transmission device disclosed in this utility model can adopt a closed or semi-closed design, and the transmission device is equipped with auxiliary features for assembly. The internal main body of the transmission device consists of a fixed cavity 11, a push-pull member 12 that functions as an internal push rod, and a rotating member 13 that functions as an internal rotating member, etc. The fixed cavity 11 and its design features can accommodate the internal push rod and the internal rotating member. The internal push rod and the internal rotating member are designed to cooperate. Power is introduced into the internal push rod of the transmission device through the input end. The internal push rod, which moves linearly within the transmission device, uses two push arms 122 to push the counter-push arm 131 provided on the internal rotating member, thereby causing the internal rotating member to rotate within the fixed cavity 11, and thus displaying the angle adjustment value of the transmission device. The internal push rod can also be provided with a groove feature 123 to accommodate the protrusion feature 132 on the internal rotating component. The groove feature 123 cooperates with the protrusion feature 132 on the internal rotating component to generate the function of the internal push rod driving the rotating component. One end of the fixed cavity 11 is provided with a cavity to accommodate the internal rotating component feature and the rotating component 16. The rotating component 16 can cause the internal rotating component to generate a rotational tendency opposite to the direction of movement driven by the internal push rod. A cover plate 14 can be provided to connect to the fixed cavity 11 to increase the sealing of the angle indicating device. In summary, one of the third guide member and the fourth guide member is constructed as either a protrusion or a groove, and the other of the third guide member and the fourth guide member is constructed as either a protrusion or a groove. Those skilled in the art should understand that the two configurations disclosed herein—one of the third and fourth guide members being constructed as a protrusion and the other as a protrusion and the other as a groove—are both feasible, as long as the linear movement of the push-pull member can drive the rotation of the rotating member, thereby displaying the antenna's downtilt angle. These technical solutions all fall within the protection scope of this utility model. One of the push-pull member and the rotating member is provided with a push arm structure, and the other of the push-pull member and the rotating member is provided with a reverse push arm structure. This arrangement stabilizes the contact and transmission between the push-pull member and the rotating member, thereby improving the operational stability of the transmission device according to this utility model.

[0039] Furthermore, such as Figure 7 As shown, the cover plate 14 can, for example, be provided with an indication scale. This indication scale can be attached to the fixed cavity, internal rotating parts, cover plate, or antenna end cover, etc., by means including but not limited to stickers, screen printing, and spray painting. The circumferential angle range of the indication scale can be quickly adapted according to the stroke, power input configuration, and internal design of the device. Figure 7In the illustrated embodiments, the scale is labeled with the numbers 2, 4, 6, 8, 10, and 12, but it can also be implemented with other values, such as angles like 3°, 6°, 9°, 12°, 15°, and 18°. The specific markings of the scale can be customized according to the user's needs.

[0040] In the embodiment shown in the accompanying drawings, the rotating member 13 is fitted into the cavity formed by the push-pull member 12. However, those skilled in the art should understand that other configurations are also possible, such as the push-pull member 12 being fitted into the cavity formed by the rotating member 13. Those skilled in the art should understand that both configurations disclosed herein—either the push-pull member 12 being fitted into the cavity formed by the rotating member 13 or the rotating member 13 being fitted into the cavity formed by the push-pull member 12—are feasible, as long as the linear movement of the push-pull member 12 can drive the rotation of the rotating member 13, thereby displaying the antenna's downtilt angle. These technical solutions all fall within the protection scope of this utility model.

[0041] The components of the transmission device proposed in this invention are all designed for easy mold opening and assembly, while also considering operational reliability and manufacturing economy. The combined design of the inner push arm and push groove in the transmission device proposed in this invention ensures the design accuracy of the overall mechanism, while the design of the fixed cavity, internal rotating parts, and cover plate ensures the display effect of the overall mechanism. When no power input is connected, the indicating value of the transmission device body is easy to fix and adjust. The transmission device proposed in this invention requires relatively low driving force and will not affect the performance of existing antenna systems.

[0042] The indicated scale can be attached to the fixed cavity, internal rotating parts, cover plates, or antenna end caps using methods including but not limited to stickers, screen printing, and spray painting. The circumferential angle range of the indicated scale can be quickly adapted according to the stroke, power input configuration, and internal design of the device. In summary, the scale markings or indicator marks are formed by adhesive, screen printing, or spray painting. Therefore, the indicated scale can be selected according to different usage scenarios, greatly improving adaptability to different strokes and types of phase shifters, and the structure is relatively simple and flexible in adjustment. The indicated scale can be attached to the fixed cavity, internal rotating parts, cover plates, or antenna end caps using methods including but not limited to stickers, screen printing, and spray painting. The circumferential angle range 141 of the indicated scale can be quickly adapted according to the stroke, power input configuration, and internal design of the device. In summary, in the technical solution according to this utility model, the transmission device also includes an indicator mark disposed at the end of the rotating part. In this way, after the rotating component rotates, the position of the indicator mark on it changes accordingly, allowing the user to easily observe the position of the indicator mark and thus determine the size of the antenna's downtilt angle.

[0043] In the technical solution according to this utility model, the transmission device further includes an end cover, which is fixedly connected to the fixed cavity and has circumferential scale markings on its surface. In this way, after the rotating component rotates, the position of the indicator markings changes accordingly, allowing the user to easily observe the position of the indicator markings using the circumferential scale markings, thereby determining the magnitude of the antenna's downtilt angle.

[0044] In the technical solution according to this utility model, the transmission device further includes a torsion spring disposed between the rotating member and the fixed cavity. This allows the transmission device to have a reaction force opposite to the driving force of the push-pull member, thereby enabling the transmission device to display the tilt angle more accurately. In the technical solution according to this utility model, the transmission device also includes a stop member disposed at the end of the rotating member, the stop member being fixedly connected to the fixed cavity. This ensures that the rotating member does not move linearly with the push-pull member, but rather rotates, thereby increasing the transmission efficiency of the transmission device according to this utility model.

[0045] Furthermore, a second aspect of this invention discloses an antenna comprising the transmission device described in the first aspect of this invention.

[0046] In summary, in the transmission device and corresponding antenna according to this utility model, the push-pull member can move linearly relative to the fixed cavity by means of the cooperation of the first and second guide members. When the push-pull member moves linearly, the rotating member can rotate around the longitudinal axis by means of the cooperation of the third and fourth guide members, thereby enabling accurate display of the antenna's downtilt angle. Furthermore, the transmission device for indicating the antenna's downtilt angle proposed according to this utility model has good versatility and can be adapted to most applications of antenna downtilt angle display.

[0047] The above description is merely an optional embodiment of the present utility model and is not intended to limit the embodiments of the present utility model. For those skilled in the art, the embodiments of the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of the present utility model should be included within the protection scope of the embodiments of the present utility model.

[0048] While embodiments of the present invention have been described with reference to several specific examples, it should be understood that the embodiments of the present invention are not limited to the specific embodiments disclosed. The embodiments of the present invention are intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. The scope of the claims is to be interpreted in the broadest sense, thereby encompassing all such modifications and equivalent structures and functions.

Claims

1. A transmission device for indicating the downtilt angle of an antenna, characterized in that, The transmission device includes: A fixed cavity having a receiving cavity, the inner wall of which has a first guide extending along the longitudinal axis of the fixed cavity; A push-pull member, received within the receiving cavity, and having a second guide member that mates with the shape of the first guide member to allow the push-pull member to move relative to the fixed cavity along its longitudinal axis; wherein a third guide member is further provided on the circumferential surface of the push-pull member, the third guide member being helically disposed on the circumferential surface of the push-pull member; and A rotating component is provided with a fourth guide component, which is shaped to match the third guide component so that the rotating component can rotate around the longitudinal axis when the push-pull component moves linearly along the longitudinal axis.

2. The transmission device according to claim 1, characterized in that, The transmission device also includes an indicator mark disposed at the end of the rotating component.

3. The transmission device according to claim 2, characterized in that, The transmission device also includes an end cap, which is fixedly connected to the fixed cavity and has circumferential scale markings on its surface.

4. The transmission device according to claim 1, characterized in that, The transmission device also includes a driving component, which is fixedly connected to the push-pull component via a notch structure on the cavity wall of the fixed cavity.

5. The transmission device according to claim 1, characterized in that, The push-pull component is fitted into the cavity formed by the rotating component, or the rotating component is fitted into the cavity formed by the push-pull component.

6. The transmission device according to claim 1, characterized in that, One of the first guide and the second guide is configured as one of a protrusion and a groove, and the other of the first guide and the second guide is configured as another of a protrusion and a groove.

7. The transmission device according to claim 1, characterized in that, One of the third guide and the fourth guide is configured as either a protrusion or a groove, and the other of the third guide and the fourth guide is configured as either a protrusion or a groove.

8. The transmission device according to claim 1, characterized in that, One of the push-pull member and the rotating member is provided with a push arm structure, and the other of the push-pull member and the rotating member is provided with a counter-push arm structure.

9. The transmission device according to claim 1, characterized in that, The transmission device also includes a torsion spring disposed between the rotating component and the fixed cavity.

10. The transmission device according to claim 1, characterized in that, The transmission device further includes a stop member disposed at the end of the rotating component, and the stop member is fixedly connected to the fixed cavity.

11. The transmission device according to claim 3, characterized in that, The scale markings or indicator markings are formed by adhesive, screen printing or spray painting.

12. An antenna, characterized in that, The antenna includes a transmission device according to any one of claims 1 to 11.

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