Antenna pneumatic rotating device

Abstract

An antenna pneumatic rotating device includes a bracket, a crossbar, an antenna adapter, a rotating cylinder and a transmission assembly, wherein the crossbar passes through the bracket and is rotatably connected to the bracket, the antenna adapter is connected to one end of the crossbar for clamping the antenna, the rotating cylinder is connected to the bracket, and the transmission assembly includes an active member and a driven member, wherein the active member is connected to the rotating cylinder to be driven to rotate by the rotating cylinder, the driven member is connected to the crossbar, the driven member is connected to the active member to be driven to rotate by the active member, the transmission ratio of the active member to the driven member is 1:N, and the rotation angle of the rotating cylinder is 90N°. The utility model drives the antenna to rotate by the rotating cylinder, and no new magnetic field enters the near antenna end, which will not affect the electromagnetic compatibility test; and by setting the transmission ratio of the transmission assembly and the rotation angle of the rotating cylinder, the antenna can be accurately controlled to rotate and adjust between 0 degrees and 90 degrees, with high efficiency and high precision.

Description

Technical Field

[0001] The utility model belongs to the field of electromagnetic compatibility testing equipment, in particular to an antenna pneumatic rotating device. Background Art

[0002] In the electromagnetic compatibility test, the antenna needs to be rotated and adjusted between 0 and 90 degrees. Currently, most of them are rotated manually or driven by a motor reducer. The shortcomings are as follows:

[0003] ①: Manual adjustment is inefficient and has large precision errors.

[0004] ②: When the motor reducer drives the rotation, since the motor itself has a magnetic field, a new magnetic field will be added during the electromagnetic compatibility test, thus affecting the test results. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide an antenna pneumatic rotating device.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] An antenna pneumatic rotating device comprises a bracket, a cross bar, an antenna adapter, a rotating cylinder and a transmission assembly, wherein the cross bar passes through the bracket and is rotatably connected to the bracket, the antenna adapter is connected to one end of the cross bar for clamping the antenna, the rotating cylinder is connected to the bracket, and the transmission assembly comprises an active member and a driven member, the active member is connected to the rotating cylinder to be driven to rotate by the rotating cylinder, the driven member is connected to the cross bar, the driven member is connected to the active member to be driven to rotate by the active member, the transmission ratio of the active member to the driven member is 1:N, and the rotation angle of the rotating cylinder is 90N°.

[0008] Preferably, the active member is a active gear, the passive member is a passive gear, and the active gear and the passive gear are meshed with each other.

[0009] Preferably, the cross bar is connected to the bracket via a bearing.

[0010] Preferably, the rotary cylinder is connected to a remote pressure air source via an air pipe.

[0011] Preferably, the bracket is made of plastic plate.

[0012] Preferably, the cross bar is made of glass fiber reinforced plastic material.

[0013] Beneficial effects of the utility model

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] The utility model drives the antenna to rotate by a rotating cylinder, and no new magnetic field enters near the antenna end, which will not affect the electromagnetic compatibility test; and the antenna is accurately controlled to rotate and adjust between 0 degrees and 90 degrees by setting the transmission ratio of the transmission component and the rotation angle of the rotating cylinder, with high efficiency and high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be noted that the terms "upper / lower end", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting / sleeving", "sleeve connection", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] See also Figure 1The utility model provides a technical solution: an antenna pneumatic rotation device, comprising a bracket 1, a cross bar 2, an antenna adapter 3, a rotating cylinder 4 and a transmission assembly, wherein the cross bar 2 passes through the bracket 1 and is rotatably connected to the bracket 1, the antenna adapter 3 is connected to one end of the cross bar 2 for clamping the antenna, the rotating cylinder 4 is connected to the bracket 1, and the transmission assembly comprises an active member 51 and a driven member 52, the active member 51 is connected to the rotating cylinder 4 to be driven to rotate by the rotating cylinder 4, the driven member 52 is connected to the cross bar 2, the driven member 52 is connected to the active member 51 to be driven to rotate by the active member 51, the transmission ratio of the active member 51 to the driven member 52 is 1:N, and the rotation angle of the rotating cylinder 4 is 90N°.

[0021] When in use, according to the need, the transmission ratio of the active member 51 and the driven member 52 is set to 1:N, and the rotation angle of the rotary cylinder 4 is 90N°. For example, if the transmission ratio of the active member 51 and the driven member 52 is set to 1:2, the rotation angle of the rotary cylinder 4 is 180°, that is, the rotation angle of the active member 51 is 180°, and the rotation angle of the driven member 52 is 90°; for another example, if the transmission ratio of the active member 51 and the driven member 52 is set to 1:1, the rotary cylinder 4 can use a rotary cylinder with a rotation angle of 90°, that is, the rotation angle of the active member 51 is 90°, and the rotation angle of the driven member 52 is 90°, so that the cross bar 2 can be accurately controlled to drive the antenna adapter 3 to rotate and adjust between 0 degrees and 90 degrees.

[0022] The utility model drives the antenna to rotate by rotating the cylinder 4, and no new magnetic field enters near the antenna end, which will not affect the electromagnetic compatibility test; and the antenna is accurately controlled to rotate and adjust between 0 degrees and 90 degrees by setting the transmission ratio of the transmission component and the rotation angle of the rotating cylinder 4, with high efficiency and high precision.

[0023] The transmission component of the utility model can be a rotating transmission component such as a belt drive and a gear drive. Preferably, the active member 51 is a driving gear, and the driven member 52 is a driven gear. The active gear and the driven gear are meshed with each other. The gear drive can control the transmission accuracy and improve the rotation accuracy.

[0024] Furthermore, the cross bar 2 is connected to the bracket 1 via a bearing 6, which reduces the friction between the cross bar 2 and the bracket 1 and ensures that the cross bar 2 rotates smoothly.

[0025] Furthermore, the rotating cylinder 4 is connected to a remote pressure gas source via an air pipe, and a solenoid valve is arranged on the air pipe, so that the rotating cylinder 4 can be controlled.

[0026] Furthermore, the bracket 1 is made of a plastic plate, and the cross bar 2 is made of a fiberglass reinforced plastic material.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An antenna pneumatic rotating device, characterized in that: The invention comprises a bracket (1), a crossbar (2), an antenna adapter (3), a rotary cylinder (4) and a transmission assembly, wherein the crossbar (2) passes through the bracket (1) and is rotatably connected to the bracket (1), the antenna adapter (3) is connected to one end of the crossbar (2) for clamping an antenna, the rotary cylinder (4) is connected to the bracket (1), and the transmission assembly comprises an active member (51) and a driven member (52), the active member (51) is connected to the rotary cylinder (4) to be driven to rotate by the rotary cylinder (4), the driven member (52) is connected to the crossbar (2), the driven member (52) is connected to the active member (51) to be driven to rotate by the active member (51), the transmission ratio of the active member (51) to the driven member (52) is 1:N, and the rotation angle of the rotary cylinder (4) is 90N°.

2. The antenna pneumatic rotating device according to claim 1, characterized in that: The active member (51) is a active gear, the passive member (52) is a passive gear, and the active gear and the passive gear are meshed with each other.

3. The antenna pneumatic rotating device according to claim 1, characterized in that: The cross bar (2) is connected to the bracket (1) via a bearing (6).

4. The antenna pneumatic rotating device according to claim 1, characterized in that: The rotary cylinder (4) is connected to a remote pressure gas source via an air pipe.

5. The antenna pneumatic rotating device according to claim 1, characterized in that: The bracket (1) is made of a plastic plate.

6. The antenna pneumatic rotating device according to claim 1, characterized in that: The cross bar (2) is made of glass fiber reinforced plastic material.

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