CN213520274U - Antenna fastening device and electromagnetic compatibility testing device - Google Patents
Antenna fastening device and electromagnetic compatibility testing device Download PDFInfo
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- CN213520274U CN213520274U CN202022720463.9U CN202022720463U CN213520274U CN 213520274 U CN213520274 U CN 213520274U CN 202022720463 U CN202022720463 U CN 202022720463U CN 213520274 U CN213520274 U CN 213520274U
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Abstract
The utility model relates to an antenna fastening device, which comprises an antenna fixed block, an antenna tower fixed block and a connecting sleeve; one end of the connecting sleeve is used for being sleeved on the antenna and detachably fixed on the antenna through the antenna fixing block, and the other end of the connecting sleeve is used for being sleeved on the antenna tower support and detachably fixed on the antenna tower support through the antenna tower fixing block; the inner diameter of one end of the connecting sleeve connected with the antenna is matched with the outer diameter of the antenna; the inner diameter of one end of the connecting sleeve connected with the antenna tower support is matched with the outer diameter of the antenna tower support. The utility model provides an antenna fastening device can realize the convenient dismantlement between different model antennas and the antenna tower, reduces the configuration quantity and the cost of electromagnetic compatibility test.
Description
Technical Field
The utility model relates to an electromagnetic compatibility tests technical field, especially relates to an antenna fastener and electromagnetic compatibility testing arrangement.
Background
With the rapid development of society and economy, people pay more and more attention to health and environmental protection, and the electromagnetic compatibility of products is more and more paid more and more attention to external electromagnetic radiation of various electronic products. For products that are included in the national mandatory product certification scope, the electromagnetic compatibility test has become a necessary project.
According to the electromagnetic compatibility test standards of GB4824 (International CISPR11) and GB9254 (International CISPR22) established in China, when an open test site or an anechoic chamber is used for performing electromagnetic compatibility test on products, an antenna needs to be fixed on an antenna tower, the antenna is vertically lifted between 1m and 4m, and the polarization direction of the antenna is changed.
In the existing electromagnetic compatibility test, an antenna is generally used on the ground, is highly fixed and is arranged on an antenna support matched with the antenna; in the project requiring the antenna tower test, a special antenna tower matching antenna needs to be additionally configured, and then the antenna main body is installed on the matching antenna tower for use. In various items of electromagnetic compatibility tests, antennas are frequently used test equipment, and different antennas need to be replaced in different test frequency bands, so that the number of configured equipment is large, and the configuration cost of a laboratory is high.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide an antenna fastening device and an electromagnetic compatibility testing device, so as to solve the problem that different antennas need to be configured with different antenna towers during an electromagnetic compatibility test, which results in a large number of antennas to be configured and a high cost.
The utility model provides an antenna fastening device, which comprises an antenna fixed block, an antenna tower fixed block and a connecting sleeve;
one end of the connecting sleeve is used for being sleeved on the antenna and detachably fixed on the antenna through the antenna fixing block, and the other end of the connecting sleeve is used for being sleeved on the antenna tower support and detachably fixed on the antenna tower support through the antenna tower fixing block; the inner diameter of one end of the connecting sleeve connected with the antenna is matched with the outer diameter of the antenna; the inner diameter of one end of the connecting sleeve connected with the antenna tower support is matched with the outer diameter of the antenna tower support.
Further, the antenna fixed block includes the fixed cover of last antenna and the fixed cover of lower antenna, go up the fixed cover of antenna and can dismantle with the fixed cover of lower antenna through first screw and be connected to the concatenation forms the first fixed orifices that is used for fastening antenna and adapter sleeve.
Further, the antenna tower fixed block includes the fixed cover of antenna tower and the fixed cover of antenna tower down, go up the fixed cover of antenna tower and can dismantle with the fixed cover of antenna tower down through the second screw and be connected to the concatenation forms the second fixed orifices that is used for fastening antenna tower support and adapter sleeve.
Furthermore, the antenna fixing block, the antenna tower fixing block and the connecting sleeve are all made of non-metal materials.
Furthermore, a first locking screw hole is formed in one end, connected with the antenna, of the connecting sleeve, a second locking screw hole is formed in one end, connected with the antenna tower support, of the connecting sleeve, the first locking bolt is in threaded connection with the first locking screw hole and abuts against the antenna, and the second locking bolt is in threaded connection with the second locking screw hole and abuts against the antenna tower support.
Furthermore, the first locking screw hole is provided with a plurality of around the connecting sleeve circumference, and the second locking screw hole is provided with a plurality of around the connecting sleeve circumference.
The utility model also provides an electromagnetic compatibility testing device, which comprises the antenna fastening device, an antenna tower bracket and an antenna;
the antenna tower support is detachably mounted on the antenna tower, and the antenna fastening device is used for connecting the antenna tower support and the antenna.
Furthermore, the number of the antenna fastening devices is multiple, and the antenna fastening devices are respectively matched with antennas of different models.
Has the advantages that: the utility model discloses a mobile jib of antenna is connected to adapter sleeve one end, and antenna tower support is connected to the other end. The main rod of the antenna is inserted into one end of the connecting sleeve and is detachably fixed and locked by the antenna fixing block; the other end of the connecting sleeve is sleeved on the antenna tower support and detachably fixed and locked by the antenna tower fixing block, so that the antenna and the antenna tower are combined into a firm whole. The utility model provides an antenna fastening device does not need to dispose the supporting antenna of dedicated antenna tower in addition in the project that needs the antenna tower test, only needs during the test to install original antenna on the antenna tower alone and uses, and antenna fastening device can carry out the high altitude test with the quick firm connection of antenna and antenna tower together to reduce laboratory antenna equipment's configuration cost by a wide margin.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of an antenna fastening device according to the present invention;
fig. 2 is a cross-sectional view of an embodiment of the connection sleeve of fig. 1;
FIG. 3 is a schematic structural diagram of an embodiment of the antenna fixing block of FIG. 1;
FIG. 4 is a schematic structural diagram of an embodiment of an antenna tower fixing block of FIG. 1;
description of the drawings:
1. an antenna fixing block; 11. an upper antenna fixing sleeve; 12. a lower antenna fixing sleeve; 13. a first screw; 2. an antenna tower fixing block; 21. an upper antenna tower fixing sleeve; 22. a lower antenna tower fixing sleeve; 23. a second screw; 3. connecting sleeves; 31. a first locking screw hole; 32. a second locking screw hole; 33. a first locking bolt; 34. a second locking bolt; 10. an antenna; 20. an antenna tower mount; 30. an antenna tower.
Detailed Description
The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.
Example 1
As shown in fig. 1 and 2, embodiment 1 of the present invention provides an antenna fastening device, which includes an antenna fixing block 1, an antenna tower fixing block 2, and a connecting sleeve 3;
one end of the connecting sleeve 3 is used for being sleeved on the antenna 10 and detachably fixed on the antenna 10 through the antenna fixing block 1, and the other end of the connecting sleeve 3 is used for being sleeved on the antenna tower support 20 and detachably fixed on the antenna tower support 20 through the antenna tower fixing block 2; the inner diameter of one end of the connecting sleeve 3 connected with the antenna 10 is matched with the outer diameter of the antenna 10; the inner diameter of one end of the connecting sleeve 3 connected with the antenna tower bracket 20 is matched with the outer diameter of the antenna tower bracket 20.
In this embodiment, the antenna fastening device is an assembly structure, and one end of the connection sleeve 3 is used for connecting the main rod of the antenna 10, and the other end is used for connecting the antenna tower support 20. The main rod of the antenna 10 is inserted into one end of the connecting sleeve 3 and is detachably fixed and locked by the antenna fixing block 1; the other end of the connecting sleeve 3 is sleeved on the antenna tower bracket 20 and detachably fixed and locked by the antenna tower fixing block 2, so that the antenna 10 and the antenna tower 30 are combined into a firm whole.
Specifically, in fig. 2, the left end of the connecting sleeve 3 is a first end, and the right end is a second end, the inner diameter of the first end is matched with the outer diameter of the antenna 10, which is slightly larger than the outer diameter of the antenna 10, and is optimal, so that the connecting sleeve can be tightly sleeved on the antenna 10; the second end has an inside diameter matching the outside diameter of the antenna tower mount 20 and is preferably slightly larger than the outside diameter of the antenna tower mount 20 so as to fit snugly over the antenna tower mount 20.
The antenna fastening device provided by the embodiment has the advantages of reasonable design, firm structure, convenience in disassembly and assembly, good interchangeability, high reliability and convenience in use and maintenance. In the project that needs antenna tower test, need not dispose dedicated antenna tower supporting antenna in addition, only need during the test to install original antenna on antenna tower 30 alone and use, antenna fastener can carry out high altitude test with quick firm the connecting together of antenna 10 and antenna tower 30 to reduce laboratory antenna equipment's configuration cost by a wide margin.
Preferably, as shown in fig. 3, the antenna fixing block 1 includes an upper antenna fixing sleeve 11 and a lower antenna fixing sleeve 12, and the upper antenna fixing sleeve 11 and the lower antenna fixing sleeve 12 are detachably connected through a first screw 13 and are spliced to form a first fixing hole for fastening the antenna 10 and the connecting sleeve 3.
Go up the fixed cover 11 of antenna and splice with the fixed cover 12 of lower antenna and form first fixed orifices, the internal diameter of first fixed orifices both sides is different, and the aperture at 1 both ends of antenna fixed block is different promptly, and the aperture that antenna fixed block 1 is close to antenna tower support 20 one end matches with antenna tower support 20 external diameter, and antenna tower fixed block 2 is close to the one end of adapter sleeve 3, and the external diameter phase-match of adapter sleeve 3 second end to realize antenna tower support 20 and adapter sleeve 3's fastening. The antenna fixing block 1 can be processed into a cylindrical part, and then the cylindrical part is cut into an upper half part and a lower half part from a central axis. The total width of the cut was about 3 mm.
Preferably, as shown in fig. 4, the antenna tower fixing block 2 includes an upper antenna tower 30 fixing sleeve 21 and a lower antenna tower 30 fixing sleeve 22, and the upper antenna tower 30 fixing sleeve 21 and the lower antenna tower 30 fixing sleeve 22 are detachably connected through a second screw 23 and are spliced to form a second fixing hole for fastening the antenna tower support 20 and the connecting sleeve 3.
Go up the fixed cover 21 of antenna tower 30 and form the second fixed orifices with the fixed cover 22 concatenation of lower antenna tower 30, the internal diameter of second fixed orifices both sides is different, and the aperture at antenna tower fixed block 2 both ends is different promptly, and the aperture that antenna tower fixed block 2 is close to antenna one end matches with the antenna 10 external diameter, and antenna tower fixed block 2 is close to the one end of adapter sleeve 3, and the external diameter phase-match of the first end of adapter sleeve 3 to realize the fastening of antenna 10 and adapter sleeve 3. The antenna tower fixing block 2 can be manufactured by firstly processing the cylindrical part and then cutting the cylindrical part into an upper half part and a lower half part from a central axis. The total width of the cut was about 3 mm.
Preferably, the antenna fixing block 1, the antenna tower fixing block 2 and the connecting sleeve 3 are all made of non-metal materials.
In the electromagnetic compatibility test, metal substances are easy to reflect with the ground, so that a burr signal appears in a test result, and the test result is influenced. Therefore, the antenna fastening device in the embodiment is processed by the expense book insulating material, and the requirement of the electromagnetic compatibility test is well met. Specifically, in this embodiment, the antenna fixing block 1, the antenna tower fixing block 2, the connecting sleeve 3, the first locking screw 1 and the second locking screw 2 are all formed by processing insulating material engineering plastic ABS bars, so that the test requirements of radiation emission and radiation immunity of an electromagnetic compatibility radio frequency electromagnetic field on the antenna height and polarization conversion are met, and the accuracy of the electromagnetic compatibility test of the electronic and electrical products is improved on the basis of the minimum cost.
Preferably, as shown in fig. 1 and 2, a first locking screw hole 31 is formed at one end of the connecting sleeve 3 connected to the antenna 10, a second locking screw hole 32 is formed at one end of the connecting sleeve 3 connected to the antenna tower support 20, the first locking bolt 33 is screwed into the first locking screw hole 31 and abuts against the antenna 10, and the second locking bolt 34 is screwed into the second locking screw hole 32 and abuts against the antenna tower support 20.
When the connecting sleeve 3 and the antenna 10 and the connecting sleeve 3 and the antenna tower support 20 are fixed through the antenna fixing block 1 and the antenna tower fixing block 2, the first locking screw hole 31 and the second locking screw hole 32 are additionally arranged, and the connection fastening degree between the connecting sleeve 3 and the antenna 10 and between the connecting sleeve 3 and the antenna tower support 20 is further enhanced.
Preferably, as shown in fig. 2, the first locking screw hole 31 is opened in a plurality around the circumference of the connecting sleeve 3, and the second locking screw hole 32 is opened in a plurality around the circumference of the connecting sleeve 3.
A plurality of first locking screw holes 31 are formed around the circumferential direction of the connecting sleeve 3 to form a circle of first locking screw holes 31, so that the antenna 10 can be supported and fastened from different directions, and the fastening effect is enhanced. Meanwhile, a plurality of first locking screw holes 31 can be formed along the axial direction of the connecting sleeve 3, so that a plurality of circles of first locking screw holes 31 are formed, the antenna 10 can be adapted to different depths of the antenna 10 extending into the connecting sleeve 3, and the antenna 10 can be abutted and fastened from different positions.
Similarly, a plurality of second locking screw holes 32 are formed around the circumferential direction of the connecting sleeve 3 to form a circle of second locking screw holes 32, so that the antenna tower bracket 20 can be tightly supported and fastened from different directions, and the fastening effect is enhanced. Meanwhile, a plurality of second locking screw holes 32 can be formed along the axial direction of the connecting sleeve 3, so that a plurality of circles of second locking screw holes 32 are formed, the antenna tower support 20 can be adapted to different depths of the antenna tower support 20 extending into the connecting sleeve 3, and the antenna tower support 20 can be tightly abutted and fastened from different positions.
Specifically, as shown in fig. 2, in the present embodiment, a circle of first locking screw holes 31 (four) is formed at a position 35mm from the left end to the right end of the connecting sleeve 3, and a circle of second locking screw holes 32 is formed at positions 85mm and 120mm, respectively. The number of the first locking screw holes 31 at the 35mm position is four, and the first locking screw holes are uniformly distributed around the axis of the connecting sleeve 3. A circle of second locking screw holes 32 with the diameter of 85mm is totally four and is uniformly distributed around the axis of the connecting sleeve 3; a circle of second locking screw holes 32 with the diameter of 120mm is four in total and is evenly distributed around the axis of the connecting sleeve 3.
Specifically, the first locking bolt 33 and the second locking bolt 34 are both made of insulating material engineering plastic ABS bars.
Example 2
As shown in fig. 1, embodiment 2 of the present invention provides an electromagnetic compatibility testing apparatus, including the antenna fastening apparatus provided in embodiment 1, further including an antenna tower 30, an antenna tower support 20, and an antenna 10;
the antenna tower mount 20 is detachably mounted to the antenna tower 30, and the antenna fastening device is used for connecting the antenna tower mount 20 and the antenna 10.
The antenna fastening device secures the antenna 10 to the antenna tower mount 20. The antenna tower mount 20 is detachably connected to the antenna tower 30 to enable vertical elevation along the antenna tower 30 and rotation about the antenna tower 30 to change the polarization direction of the antenna 10.
The embodiment of the utility model provides an electromagnetic compatibility testing arrangement, including antenna fastener, consequently, the technological effect that antenna fastener possessed, electromagnetic compatibility testing arrangement possesses equally, no longer gives unnecessary details here.
Preferably, the number of the antenna fastening devices is multiple, and the antenna fastening devices are matched with the antennas 10 of different models respectively.
The antenna fastening device is simple in structure, convenient to disassemble and assemble and low in cost, so that the antenna fastening devices can be arranged at one time to adapt to antennas 10 of different models, only one antenna tower 30 and antenna tower bracket 20 is needed, configuration quantity and cost during testing are reduced, testing is convenient to conduct rapidly and smoothly, and the antenna fastening device is suitable for being popularized and used on a large scale.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (8)
1. An antenna fastening device is characterized by comprising an antenna fixing block, an antenna tower fixing block and a connecting sleeve;
one end of the connecting sleeve is used for being sleeved on the antenna and detachably fixed on the antenna through the antenna fixing block, and the other end of the connecting sleeve is used for being sleeved on the antenna tower support and detachably fixed on the antenna tower support through the antenna tower fixing block; the inner diameter of one end of the connecting sleeve connected with the antenna is matched with the outer diameter of the antenna; the inner diameter of one end of the connecting sleeve connected with the antenna tower support is matched with the outer diameter of the antenna tower support.
2. The antenna fastening device of claim 1, wherein the antenna fixing block comprises an upper antenna fixing sleeve and a lower antenna fixing sleeve, the upper antenna fixing sleeve and the lower antenna fixing sleeve are detachably connected through a first screw and are spliced to form a first fixing hole for fastening the antenna and the connecting sleeve.
3. The antenna fastening device of claim 1, wherein the antenna tower fixing block comprises an upper antenna tower fixing sleeve and a lower antenna tower fixing sleeve, the upper antenna tower fixing sleeve and the lower antenna tower fixing sleeve are detachably connected through a second screw and are spliced to form a second fixing hole for fastening the antenna tower support and the connecting sleeve.
4. The antenna fastening device of claim 1, wherein the antenna fixing block, the antenna tower fixing block and the connecting sleeve are made of non-metallic materials.
5. The antenna fastening device according to claim 1, wherein a first locking screw hole is formed at an end of the connecting sleeve connected to the antenna, a second locking screw hole is formed at an end of the connecting sleeve connected to the antenna tower bracket, the first locking bolt is threadedly connected to the first locking screw hole and abuts against the antenna, and the second locking bolt is threadedly connected to the second locking screw hole and abuts against the antenna tower bracket.
6. The antenna fastening device according to claim 5, wherein the first locking screw hole is opened in plural around the circumferential direction of the connection sleeve, and the second locking screw hole is opened in plural around the circumferential direction of the connection sleeve.
7. An electromagnetic compatibility testing apparatus comprising an antenna fastening apparatus as claimed in any one of claims 1 to 6, further comprising an antenna tower, an antenna tower support and an antenna;
the antenna tower support is detachably mounted on the antenna tower, and the antenna fastening device is used for connecting the antenna tower support and the antenna.
8. The apparatus according to claim 7, wherein the number of the antenna fastening devices is plural and the antenna fastening devices are matched with different types of antennas respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022720463.9U CN213520274U (en) | 2020-11-20 | 2020-11-20 | Antenna fastening device and electromagnetic compatibility testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022720463.9U CN213520274U (en) | 2020-11-20 | 2020-11-20 | Antenna fastening device and electromagnetic compatibility testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213520274U true CN213520274U (en) | 2021-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022720463.9U Active CN213520274U (en) | 2020-11-20 | 2020-11-20 | Antenna fastening device and electromagnetic compatibility testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213520274U (en) |
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2020
- 2020-11-20 CN CN202022720463.9U patent/CN213520274U/en active Active
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