Multi-channel low-noise amplifier test tool

Abstract

The utility model discloses a multi-channel low noise amplifier testing tool, which relates to the technical field of testing tools and comprises a mounting plate, a plurality of bottom plates are symmetrically arranged at the top of the mounting plate, a fixed clamping plate is fixedly arranged at one end of the top of each bottom plate, a movable clamping plate is slidably arranged at the other end of the top of each bottom plate, and the multi-channel low noise amplifier testing tool further comprises a moving mechanism and a limiting mechanism. A moving mechanism for driving the movable clamping plate to move is arranged in the bottom plates, a limiting mechanism for limiting a tested object is arranged on the side wall of the fixed clamping plate, the multiple bottom plates, the fixed clamping plate, the movable clamping plate and the moving mechanism are arranged, the multi-channel testing effect is achieved, the first rotating handle is rotated, and the first rotating handle is rotated to rotate the first rotating handle; the first screw rod is driven to rotate, so that the movable block is driven to move, the distance between the movable clamping plate and the fixed clamping plate can be adjusted, tested objects of different sizes can be clamped, signal testing can be carried out on the different tested objects at the same time, the working efficiency is improved, the variability is high, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing tooling, in particular to a multi-channel low-noise amplifier testing tooling. Background Art

[0002] The C-band limiting low noise amplifier fixture is a professional tool for testing the transmission characteristics of RF signals. It is commonly used in communications, radar, radio and other fields. In RF testing, it can provide a stable signal transmission environment, reduce test errors, improve test accuracy, and increase system sensitivity.

[0003] A low-noise amplifier test fixture base is described in a patent with an existing patent announcement number of CN 218445758 U, wherein the test fixture includes a support seat, a rotating groove is provided on the upper surface of the support seat, a turntable is movably connected inside the rotating groove, a fixed plate is fixedly connected to the upper surface of the turntable, a movable groove is provided on the upper surface of the turntable, a moving block is slidably connected inside the movable groove, and a spring is fixedly connected to the right side of the moving block. Through the mutual cooperation of the turntable, the moving block, the movable groove, the spring, the movable plate and the fixed plate, it is possible to position the objects under test of different sizes. However, the test fixture can only perform signal testing on one object under test at a time, has low working efficiency and poor variability, cannot meet the needs of multi-channel testing, and has poor practicality.

[0004] Based on this, a multi-channel low-noise amplifier test fixture is now provided, which can eliminate the disadvantages of the existing devices. Utility Model Content

[0005] The utility model aims to provide a multi-channel low-noise amplifier test fixture to solve the problem that the test fixture can only perform signal testing on one object under test at a time, has low work efficiency, poor variability, and cannot meet the needs of multi-channel testing.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multi-channel low-noise amplifier test fixture comprises a mounting plate, a plurality of base plates are symmetrically arranged on the top of the mounting plate, a fixed clamping plate is fixedly arranged at one end of the top of the base plate, a movable clamping plate is slidably arranged at the other end of the top of the base plate, buffer plates are symmetrically arranged at both ends of the mounting plate, a plurality of signal interfaces are arranged at the bottom of the mounting plate, and further comprises a moving mechanism, a limiting mechanism, and a shock absorbing mechanism. A moving mechanism for driving the movable clamping plate to move is arranged inside the base plate, a limiting mechanism for limiting the position of the object to be tested is arranged on the side wall of the fixed clamping plate, and a shock absorbing mechanism for buffering is arranged on the side wall of the buffer plate.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an optional scheme: the moving mechanism includes a moving block, a moving groove, a first screw, a first bevel gear, a second bevel gear, a rotating shaft, and a first rotating handle. A moving groove is provided at the top of the base plate, and a first screw is rotatably provided between the inner side walls of the base plate. A moving block is threadedly connected to the first screw, and the moving block is slidably set in the moving groove. The top of the moving block is fixedly connected to the bottom of the moving splint, a first bevel gear is fixedly provided at the end of the first screw, a rotating shaft is rotatably provided on the side wall of the base plate, a second bevel gear is fixedly provided at the end of the rotating shaft, the second bevel gear is meshed with the first bevel gear, and a first rotating handle is fixedly provided at the end of the rotating shaft extending outside the side wall of the base plate.

[0010] In an optional solution: a scale line is provided on the top of the bottom plate on the side of the movable groove.

[0011] In an optional scheme: the limiting mechanism includes a pressure plate, a second screw, a sliding groove, a slider, and a second turning handle. The side wall of the fixed splint is provided with a sliding groove, a second screw is rotatably provided between the bottom of the sliding groove and the top of the fixed splint, a second turning handle is fixedly provided on the top of the second screw extending outside the top of the fixed splint, a slider is rotatably provided on the second screw, and a pressure plate is fixedly provided on the end of the slider.

[0012] In an optional solution: a protective cushion is provided at the bottom of the pressing plate.

[0013] In an optional solution: the surfaces of the first rotating handle and the second rotating handle are both covered with anti-slip covers.

[0014] In an optional scheme: the shock-absorbing mechanism includes a sleeve, a movable rod, and a shock-absorbing spring. A plurality of sleeves are provided at the bottom of the mounting plate, a movable rod is inserted into the bottom of the sleeve, a plurality of slots matching the movable rod are provided at the inner bottom of the buffer plate, the bottom end of the movable rod is inserted into the slot, a shock-absorbing spring is sleeved on the outer wall of the movable rod, one end of the shock-absorbing spring is fixed to the bottom of the sleeve, and the other end is fixed to the inner bottom of the buffer plate.

[0015] In an optional solution: a plurality of channel inner holes matching the signal interface are opened on the top of the base plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The utility model achieves the effect of multi-channel testing by setting up multiple base plates, fixed clamping plates, movable clamping plates and movable mechanisms. By rotating the first rotating handle, the first screw rod is driven to rotate, thereby driving the movable block to move, and then the distance between the movable clamping plate and the fixed clamping plate can be adjusted to clamp objects of different sizes. Signal tests can be performed on different objects at the same time, thereby improving work efficiency, having strong variability and improving practicality.

[0018] 2. The utility model achieves the effect of stably placing the object to be measured by setting a limit mechanism. The second handle is rotated to drive the second screw to rotate, thereby driving the slider to move, and then driving the pressure plate to move, so that the pressure plate is pressed and contacted with the top of the object to be measured, making the placement of the object to be measured more stable and improving the stability of the test tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic structural diagram of the first side view of the utility model.

[0021] Figure 3 It is a schematic diagram of the structure inside the bottom plate of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the movable splint of the utility model.

[0023] Figure 5 It is a schematic structural diagram of the second side view of the utility model.

[0024] Figure 6 It is a partial enlarged view of A in the utility model.

[0025] Notes on figure marks: mounting plate 100, buffer plate 101, signal interface 102, sleeve 103, moving rod 104, shock-absorbing spring 105, base plate 200, channel inner hole 201, fixed clamp plate 202, moving clamp plate 203, moving block 204, moving groove 205, first screw 206, first bevel gear 207, second bevel gear 208, rotating shaft 209, first turning handle 210, pressure plate 300, second screw 301, sliding groove 302, slider 303, second turning handle 304. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] Example 1

[0028] In one embodiment, Figure 1-Figure 6As shown, a multi-channel low-noise amplifier test fixture includes a mounting plate 100, a plurality of bottom plates 200 are symmetrically arranged on the top of the mounting plate 100, a fixed clamping plate 202 is fixedly arranged on one end of the top of the bottom plate 200, and a movable clamping plate 203 is slidably arranged on the other end of the top of the bottom plate 200. By setting up a plurality of bottom plates 200, signal tests can be performed on different objects under test at the same time, which improves work efficiency, has strong variability, and can meet the needs of testers for multi-channel testing. Buffer plates 101 are symmetrically arranged at both ends of the mounting plate 100, and the bottom of the mounting plate 100 A plurality of signal interfaces 102 are provided, and the bottom of the buffer plate 101 is longer than one end of the signal interface 102. When the test tooling accidentally falls, the buffer plate 101 will first contact the ground, thereby providing good protection for the signal interface 102. The buffer plate 101 also includes a moving mechanism, a limiting mechanism, and a shock absorbing mechanism. A moving mechanism for driving the moving clamp plate 203 to move is provided inside the base plate 200, and a limiting mechanism for limiting the position of the object to be tested is provided on the side wall of the fixed clamp plate 202. A shock absorbing mechanism for buffering is provided on the side wall of the buffer plate 101.

[0029] In one embodiment, Figure 1-Figure 4 As shown, the moving mechanism includes a moving block 204, a moving groove 205, a first screw 206, a first bevel gear 207, a second bevel gear 208, a rotating shaft 209, and a first rotating handle 210. The top of the bottom plate 200 is provided with a moving groove 205, and a first screw 206 is rotatably provided between the inner side walls of the bottom plate 200. The first screw 206 is threadedly connected with the moving block 204, and the moving block 204 is slidably set in the moving groove 205. The top of the moving block 204 is fixedly connected to the bottom of the moving splint 203, and the end of the first screw 206 is fixedly provided with a first bevel gear 207. The side wall of the bottom plate 200 is rotatably provided with a first screw 206. There is a rotating shaft 209, and a second bevel gear 208 is fixedly provided at the end of the rotating shaft 209. The second bevel gear 208 is meshingly connected with the first bevel gear 207. A first rotating handle 210 is fixedly provided at the end of the rotating shaft 209 extending outside the side wall of the bottom plate 200. The first rotating handle 210 is rotated to drive the rotating shaft 209 to rotate, and the first screw rod 206 is driven to rotate through the meshing connection between the second bevel gear 208 and the first bevel gear 207, thereby driving the moving block 204 to move, and then the distance between the moving clamp plate 203 and the fixed clamp plate 202 can be adjusted to clamp objects of different sizes to improve practicality.

[0030] In one embodiment, Figure 2-Figure 4 As shown, a scale line is provided on the top of the bottom plate 200 on the side of the movable groove 205 to assist the operator in adjusting the distance.

[0031] In one embodiment, Figure 4As shown, the limiting mechanism includes a pressure plate 300, a second screw 301, a slide groove 302, a slider 303, and a second rotating handle 304. The side wall of the fixed splint 202 is provided with a slide groove 302, and a second screw 301 is rotatably provided between the bottom of the slide groove 302 and the top of the fixed splint 202. A second rotating handle 304 is fixedly provided on the top of the second screw 301 extending outside the top of the fixed splint 202, and a slider 303 is rotatably provided on the second screw 301. The end of the slider 303 is fixedly provided with a pressure plate 300. Rotating the second rotating handle 304 drives the second screw 301 to rotate, thereby driving the slider 303 to move, and then driving the pressure plate 300 to move. The height of the pressure plate 300 can be adjusted according to the size of the object to be measured, so that the placement of the object to be measured is more stable, thereby improving the stability of the test tooling.

[0032] In one embodiment, Figure 4 As shown, a protective cushion is provided at the bottom of the pressing plate 300 to play a protective role and reduce friction damage.

[0033] In one embodiment, Figure 1-Figure 4 As shown, the surfaces of the first rotating handle 210 and the second rotating handle 304 are both covered with anti-slip covers, which facilitates the operator to rotate the first rotating handle 210 and the second rotating handle 304, making the operation smoother.

[0034] Example 2

[0035] In one embodiment, Figure 5-Figure 6 As shown, the shock absorbing mechanism includes a sleeve 103, a moving rod 104, and a shock absorbing spring 105. A plurality of sleeves 103 are provided at the bottom of the mounting plate 100, and a moving rod 104 is inserted at the bottom of the sleeve 103. A plurality of slots matching the moving rod 104 are provided at the inner bottom of the buffer plate 101. The bottom end of the moving rod 104 is snapped into the slot, and a shock absorbing spring 105 is sleeved on the outer wall of the moving rod 104. One end of the shock absorbing spring 105 is fixed to the bottom of the sleeve 103, and the other end is fixed to the inner bottom of the buffer plate 101. Through the mutual cooperation among the sleeve 103, the moving rod 104 and the shock absorbing spring 105, the shock absorbing capacity of the buffer plate 5 can be greatly improved, and the service life of the test tooling can be extended.

[0036] In one embodiment, Figure 1-Figure 4 As shown, a plurality of channel inner holes 201 matching the signal interface 102 are provided on the top of the bottom plate 200 to facilitate the connection of the transmission line and ensure the stability of signal transmission.

[0037] Working principle: When in use, the object to be measured is placed on the top of the bottom plate 200, the transmission line is connected to the signal interface 102 through the inner hole 201 of the channel, the first rotating handle 210 is rotated to drive the rotating shaft 209 to rotate, and the first screw rod 206 is driven to rotate through the meshing connection between the second bevel gear 208 and the first bevel gear 207, thereby driving the moving block 204 to move, and then adjusting the distance between the moving clamping plate 203 and the fixed clamping plate 202, clamping and fixing the object to be measured on the top of the bottom plate 200, and then rotating the second rotating handle 304 to drive the second screw rod 301 to rotate. The slider 303 is moved, thereby driving the pressure plate 300 to move, so that the pressure plate 300 is pressed and contacted with the top of the object to be tested, so that the placement of the object to be tested is more stable, and the stability of the test tooling is improved. Multiple bottom plates 200 are set, and the height of the pressure plate 300 and the distance between the movable clamping plate 203 and the fixed clamping plate 202 can be adjusted according to the size of the object to be tested, so as to clamp objects of different sizes to be tested, and signal tests can be performed on different objects to be tested at the same time, thereby improving work efficiency, having strong variability, being able to meet the needs of testers for multi-channel testing, and improving practicality.

[0038] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A multi-channel low-noise amplifier test fixture, comprising a mounting plate (100), a plurality of bottom plates (200) symmetrically arranged on the top of the mounting plate (100), a fixed clamping plate (202) fixedly arranged on one end of the top of the bottom plate (200), a movable clamping plate (203) slidably arranged on the other end of the top of the bottom plate (200), buffer plates (101) symmetrically arranged on both ends of the mounting plate (100), and a plurality of signal interfaces (102) arranged on the bottom of the mounting plate (100), characterized in that: It also comprises a moving mechanism, a limiting mechanism and a shock absorbing mechanism. The bottom plate (200) is provided with a moving mechanism inside to drive the moving clamping plate (203) to move. The side wall of the fixed clamping plate (202) is provided with a limiting mechanism for limiting the position of the object to be measured. The side wall of the buffer plate (101) is provided with a shock absorbing mechanism for buffering.

2. A multi-channel low noise amplifier test fixture according to claim 1, characterized in that: The moving mechanism comprises a moving block (204), a moving groove (205), a first screw rod (206), a first bevel gear (207), a second bevel gear (208), a rotating shaft (209), and a first rotating handle (210); a moving groove (205) is provided on the top of the bottom plate (200); a first screw rod (206) is rotatably provided between the inner side walls of the bottom plate (200); a moving block (204) is threadedly connected to the first screw rod (206); the moving block (204) is slidably arranged in the moving groove (205); The top of the moving block (204) is fixedly connected to the bottom of the moving clamp (203); a first bevel gear (207) is fixedly provided at the end of the first screw rod (206); a rotating shaft (209) is rotatably provided on the side wall of the bottom plate (200); a second bevel gear (208) is fixedly provided at the end of the rotating shaft (209); the second bevel gear (208) is meshingly connected with the first bevel gear (207); and a first rotating handle (210) is fixedly provided at the end of the rotating shaft (209) extending outside the side wall of the bottom plate (200).

3. The multi-channel low noise amplifier test fixture according to claim 2, characterized in that: A scale line is provided on the top of the bottom plate (200) on the side of the moving groove (205).

4. The multi-channel low noise amplifier test fixture according to claim 3, characterized in that: The limiting mechanism comprises a pressing plate (300), a second screw rod (301), a sliding groove (302), a slider (303), and a second rotating handle (304); a sliding groove (302) is provided on a side wall of the fixed clamp plate (202); a second screw rod (301) is rotatably provided between the bottom of the sliding groove (302) and the top of the fixed clamp plate (202); a second rotating handle (304) is fixedly provided on the top of the second screw rod (301) extending outside the top of the fixed clamp plate (202); a slider (303) is rotatably provided on the second screw rod (301); and a pressing plate (300) is fixedly provided at the end of the slider (303).

5. The multi-channel low noise amplifier test fixture according to claim 4, characterized in that: A protective cushion is provided at the bottom of the pressing plate (300).

6. The multi-channel low noise amplifier test fixture according to claim 4, characterized in that: The surfaces of the first rotating handle (210) and the second rotating handle (304) are both covered with anti-slip covers.

7. The multi-channel low noise amplifier test fixture according to claim 1, characterized in that: The shock absorbing mechanism comprises a sleeve (103), a moving rod (104), and a shock absorbing spring (105); a plurality of sleeves (103) are provided at the bottom of the mounting plate (100); a moving rod (104) is inserted into the bottom of the sleeve (103); a plurality of slots matching the moving rod (104) are provided at the inner bottom of the buffer plate (101); the bottom end of the moving rod (104) is inserted into the slot; a shock absorbing spring (105) is sleeved on the outer wall of the moving rod (104); one end of the shock absorbing spring (105) is fixed to the bottom of the sleeve (103), and the other end is fixed to the inner bottom of the buffer plate (101).

8. The multi-channel low noise amplifier test fixture according to claim 1, characterized in that: The top of the bottom plate (200) is provided with a plurality of channel inner holes (201) matching the signal interface (102).

Images