CN210323096U

CN210323096U - Filter test tool

Info

Publication number: CN210323096U
Application number: CN201920509621.0U
Authority: CN
Inventors: 张斌; 李军杰; 叶荣; 王斌华
Original assignee: Mobi Antenna Technologies Shenzhen Co Ltd; Mobi Technology Xian Co Ltd; Mobi Antenna Technologies Jian Co Ltd; Mobi Technology Shenzhen Co Ltd
Current assignee: Mobi Antenna Technologies Shenzhen Co Ltd; Mobi Technology Xian Co Ltd; Mobi Antenna Technologies Jian Co Ltd; Mobi Technology Shenzhen Co Ltd
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-04-14
Anticipated expiration: 2029-04-15

Abstract

The embodiment of the utility model is suitable for the technical field of filters, and provides a filter testing tool, which comprises a positioning plate, a screw sleeve, a testing cable and a testing frame, wherein the positioning plate is fixedly connected with a cover plate arranged at the opening end of a filter cavity through a fastener, the positioning plate is provided with a supporting column and a positioning component, the filter cavity is vertically fixed on the testing frame, the testing cable and the cover plate are positioned at two opposite sides of the positioning plate, a joint of the filter cavity is arranged on the cover plate, the front end of the testing cable is provided with a testing adapter, the screw sleeve is sleeved between the cable and the testing adapter, the positioning plate is provided with a threaded hole, the joint is opposite to the threaded hole, the screw sleeve is screwed into the threaded, and the cable and the test adaptor are driven to integrally move forwards until the test adaptor is completely matched with the connector, and a gap exists between the screwed screw sleeve and the end face of the positioning plate. The utility model discloses can improve the stability and the accuracy of blind-mate joint test.

Description

Filter test tool

Technical Field

The utility model belongs to the technical field of the wave filter, especially, relate to a wave filter test fixture.

Background

The filter is a device for filtering waves, and can effectively filter a frequency point of a specific frequency or frequencies except the frequency point to obtain an electric signal of the specific frequency or eliminate the signal of the specific frequency. The filter must be tested sufficiently at the time of factory shipment to ensure performance. The traditional filter test tool cannot well test blind-plug connector products, data are unstable due to poor contact when the blind-plug connector is tested, and the accuracy is low.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem that will solve provides a wave filter test fixture, aims at solving the problem that data are unstable, and the accuracy is lower when prior art test blind-mate connects.

The embodiment of the utility model provides a realize like this, a wave filter test fixture, it includes locating plate, swivel nut, test cable and test jig, the locating plate passes through fastener and installs at the apron fixed connection of the open end of wave filter cavity, be provided with the support column that is used for supporting the apron on the locating plate, be provided with the locating component that is used for fixing a position the apron on the locating plate, the wave filter cavity is vertical to be fixed on the test jig;

the testing cable and the cover plate are located on two opposite sides of the positioning plate, the connector of the filter cavity is arranged on the cover plate, a testing adapter connected with the connector in a matched mode is arranged at the front end of the testing cable, the threaded sleeve is sleeved between the cable and the testing adapter, a threaded hole matched with the threaded sleeve is formed in the positioning plate, the connector is right opposite to the threaded hole, the threaded sleeve is screwed into the threaded hole after the testing adapter is inserted into the threaded hole and drives the cable and the testing adapter to move forwards integrally until the testing adapter is completely matched with the connector on the other side of the positioning plate, and a gap exists between the screwed-down threaded sleeve and the end face of the positioning plate.

Further, both ends of test jig are provided with the curb plate, the curb plate orientation the locating plate be provided with the quick clamp installation piece on the surface, install on the quick clamp installation piece and be used for with the filter cavity presss from both sides tightly to be fixed the quick clamp on the test jig.

Furthermore, a groove is formed in the surface, facing the positioning plate, of the side plate, two ends of the positioning plate are inserted into the groove, and two sides of the end face of the positioning plate are tightly attached to the bottom face of the groove.

Furthermore, the bottom of the test jig is provided with a bottom plate, and a triangular block used for supporting the side plate is arranged between the bottom plate and the side plate.

Furthermore, the positioning assembly comprises a positioning column and a sleeve, the positioning column and the sleeve are arranged on the surface, facing the cover plate, of the positioning plate, the cover plate is provided with a positioning hole matched with the positioning column, and the cover plate is provided with a limiting block matched with the sleeve

Further, the positioning plate is provided with a plurality of threaded holes.

Further, a plurality of the screw holes are evenly distributed along the edge of the positioning plate.

Furthermore, the fastener is a bolt, and a hole site matched with the bolt is arranged on the positioning plate.

Furthermore, the thread insert is made of brass.

Furthermore, the material of test jig is bakelite material.

Compared with the prior art, the embodiment of the utility model, beneficial effect lies in: the utility model discloses install the locating plate that will be provided with the screw hole on the apron of wave filter cavity, and guarantee the accurate location of locating plate and apron through locating component, make the joint of wave filter cavity just to the screw hole, the locating plate opposite side is provided with the test cable, cup joint the swivel nut between the test adaptor of test cable and test cable front end, insert the screw hole with the test adaptor, again with swivel nut screw in screw hole, make test adaptor and joint fully contact, and when the swivel nut was screwed up, swivel nut bottom still has certain clearance apart from the locating plate, that is to say, leave certain magnitude of interference, the swivel nut just will test adaptor plug and the abundant firm contact of joint inner core on the wave filter cavity this moment, will increase the stability and the accuracy of test like this in intermodulation test.

Drawings

Fig. 1 is a schematic view of an overall structure of a filter testing tool according to an embodiment of the present invention;

FIG. 2 is a schematic side view of the structure of FIG. 1;

FIG. 3 is a front view of the positioning plate of FIG. 1;

FIG. 4 is a side view schematic of the structure of FIG. 3;

FIG. 5 is a schematic view of the overall structure of the test rack of FIG. 1;

fig. 6 is a partially cut-away structural view of fig. 1.

In the drawings, each reference numeral denotes:

1. positioning a plate; 2. a threaded sleeve; 3. a test jig; 4. a filter cavity; 5. a fastener; 6. testing the cable; 7. testing the adaptor; 11. a threaded hole; 12. hole site; 13. a support pillar; 14. a positioning column; 15. a sleeve; 31. a side plate; 32. a quick clamp mounting block; 33. quickly clamping; 34. a triangular block; 35. a base plate; 36. a groove; 41. and (4) a joint.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 and fig. 2, be the utility model provides a filter test fixture, including locating plate 1, swivel nut 2, test cable 6 and test jig 3, locating plate 1 passes through fastener 5 and installs the apron fixed connection at the open end of filter cavity 4, filter cavity 4 is vertical to be fixed on test jig 3.

In the above embodiment, as shown in fig. 2 to 6, the positioning plate 1 is provided with a positioning assembly for positioning the cover plate, the positioning plate 1 is provided with a supporting column 13 for supporting the cover plate, the filter testing tool further comprises a testing adapter 7, a testing cable 6 and a cover plate are positioned on two opposite sides of the positioning plate 1, a connector 41 of a filter cavity 4 is arranged on the cover plate, the testing adapter 7 which is in fit connection with the connector 41 is arranged at the front end of the testing cable 6, a threaded sleeve 2 is sleeved between the cable and the testing adapter 7, a threaded hole 11 which is in fit connection with the threaded sleeve 2 is arranged on the positioning plate 1, the connector 41 is opposite to the threaded hole 11, the threaded sleeve 2 is screwed into the threaded hole 11 after the testing adapter 7 is inserted into the threaded hole 11, and the cable and the test adaptor 7 are driven to move forwards integrally until the test adaptor 7 is completely matched with the connector 41 on the other side of the positioning plate 1, and a gap exists between the screwed sleeve 2 and the end face of the positioning plate 1. That is to say, certain magnitude of interference is left with locating plate 1 to swivel nut 2, and swivel nut 2 just will test adaptor 7 plug and the abundant firm contact of the interior core of joint 41 on the wave filter cavity 4 when the bottom of swivel nut 2 does not contact the terminal surface of locating plate 1, avoids appearing testing adaptor 7 and the interior core of joint 41 and is not abundant in contact, and test adaptor 7 just can't continue the condition forward, will increase the stability and the accuracy of test like this in the time of intermodulation test. In order to meet the testing requirements of the multi-port cavity, the threaded holes 11 on the positioning plate 1 are provided in a plurality. Preferably, the threaded holes 11 are evenly distributed along the edge of the positioning plate 1.

Specifically, as shown in fig. 3 and 4, the positioning assembly includes a positioning column 14 and a sleeve 15, the positioning column 14 and the sleeve 15 are disposed on the surface of the positioning plate 1 facing the cover plate, the cover plate is provided with a positioning hole matched with the positioning column 14, and the cover plate is further provided with a limiting block matched with the sleeve 15. The positioning column 14 and the sleeve 15 ensure that the joint 41 can be opposite to the threaded hole 11 on the positioning plate 1 when the positioning plate 1 is mounted on the cover plate. In this way, the tolerance of the fit between the test adaptor 7 and the fitting 41 is greatly reduced. In fact, the threaded hole 11 on the positioning plate 1 must be designed to be coaxial with the plugging hole site between the test adaptor 7 and the connector 41, so as to ensure convenience and rapidness in blind plugging and matching of the test adaptor 7 and the connector 41, and ensure the verticality after matching. The positioning posts 14 and the sleeves 15 can also support the positioning plate 1 above the cover plate surface together with the supporting posts 13, so as to protect the cover plate and the screw of the product. Optionally, the fastening member 5 is a bolt, and a hole 12 matched with the bolt is arranged on the positioning plate 1.

In the above embodiment, as shown in fig. 5, the two ends of the testing jig 3 are provided with the side plates 31, the surface of the side plate 31 facing the positioning plate 1 is provided with the quick clamp mounting block 32, the quick clamp mounting block 32 is provided with the quick clamp 33 for clamping and fixing the filter cavity 4 on the testing jig 3, the surface of the side plate 31 facing the positioning plate 1 is provided with the groove 36, the two ends of the positioning plate 1 are inserted into the groove 36, and the two sides of the end surface of the positioning plate 1 are tightly attached to the bottom surface of the groove 36. Compress tightly filter cavity 4 through quick clamp 33, guarantee that filter cavity 4 can the vertical fixation to further guarantee filter cavity 4 and locating plate 1's accurate cooperation. Preferably, the bottom of the testing jig 3 is provided with a bottom plate 35, a triangular block 34 for supporting the side plate 31 is arranged between the bottom plate 35 and the side plate 31, and the stability of the testing jig 3 is ensured by the triangular block 34.

In the above embodiment, the threaded sleeve 2 is made of brass, and the brass has the characteristics of high strength, high hardness and strong wear resistance, so that the threaded sleeve 2 is prevented from being worn to reduce the matching precision of the plug of the test adaptor 7 and the connector 41. Optionally, the material of the test jig 3 is bakelite material, and the material of the positioning plate 1 is aluminum alloy.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The filter testing tool is characterized by comprising a positioning plate (1), a threaded sleeve (2), a testing cable (6), a testing adapter piece (7) and a testing frame (3), wherein the positioning plate (1) is fixedly connected with a cover plate installed at the opening end of a filter cavity (4) through a fastener (5), a supporting column (13) used for supporting the cover plate is arranged on the positioning plate (1), a positioning assembly used for positioning the cover plate is arranged on the positioning plate (1), and the filter cavity (4) is vertically fixed on the testing frame (3);

the testing cable (6) and the cover plate are positioned on two opposite sides of the positioning plate (1), a connector (41) of the filter cavity (4) is arranged on the cover plate, a testing adapter (7) which is matched and connected with the connector (41) is arranged at the front end of the testing cable (6), the screw sleeve (2) is sleeved between the cable and the testing adapter (7), a threaded hole (11) which is matched with the screw sleeve (2) is formed in the positioning plate (1), the connector (41) is right opposite to the threaded hole (11), the screw sleeve (2) is screwed into the threaded hole (11) after the testing adapter (7) is inserted into the threaded hole (11), and drives the cable and the testing adapter (7) to integrally move forwards until the testing adapter (7) is completely matched with the connector (41) on the other side of the positioning plate (1), and a gap is reserved between the screwed screw sleeve (2) and the end surface of the positioning plate (1).

2. The filter testing tool according to claim 1, wherein side plates (31) are arranged at two ends of the testing jig (3), quick clamp mounting blocks (32) are arranged on the surfaces, facing the positioning plate (1), of the side plates (31), and quick clamps (33) used for clamping and fixing the filter cavity (4) on the testing jig (3) are mounted on the quick clamp mounting blocks (32).

3. The filter testing tool according to claim 2, wherein a groove (36) is formed in the surface, facing the positioning plate (1), of the side plate (31), two ends of the positioning plate (1) are inserted into the groove (36), and two sides of the end face of the positioning plate (1) are tightly attached to the bottom surface of the groove (36).

4. The filter testing tool according to claim 3, wherein a bottom plate (35) is arranged at the bottom of the testing jig (3), and a triangular block (34) for supporting the side plate (31) is arranged between the bottom plate (35) and the side plate (31).

5. The filter testing tool according to any one of claims 1 to 4, wherein the positioning assembly comprises a positioning column (14) and a sleeve (15), the positioning column (14) and the sleeve (15) are arranged on the surface, facing the cover plate, of the positioning plate (1), a positioning hole matched with the positioning column (14) is arranged on the cover plate, and a limiting block matched with the sleeve (15) is arranged on the cover plate.

6. The filter testing tool according to any one of claims 1 to 4, wherein the positioning plate (1) is provided with a plurality of threaded holes (11).

7. The filter testing tool according to claim 6, characterized in that a plurality of threaded holes (11) are evenly distributed along the edge of the positioning plate (1).

8. The filter testing tool according to claim 1, wherein the fastening member (5) is a bolt, and a hole (12) matched with the bolt is formed in the positioning plate (1).

9. The filter test tool according to claim 1, wherein the thread insert (2) is made of brass.

10. The filter test tool according to claim 1, wherein the test frame (3) is made of bakelite.