Signal amplifier testing device

Abstract

The invention relates to the technical field of testing devices, in particular to a signal amplifier testing device which comprises a machine body, a lifting rod, a plurality of clamps, a protection plate, a fixing plate and an elastic telescopic rod, the fixing plate is arranged on the inner wall of the machine body, the protection plate rotates on the upper portion of the inner wall of the machine body, and the lifting rod slides on the rear side of the machine body. A transport part used for synchronously moving the plurality of clamps is arranged in the machine body, and the transport part can ensure that the angle is fixed when a sample is transported; the driving piece is driven by a gear and a bevel gear to synchronously link the transportation piece and the detection piece, so that the detection piece synchronously moves along with the clamp, and detection and transportation are synchronously carried out; the detection piece is in self-adaptive butt joint with the sample interface through cooperation of the pushing block, the sliding block and the sliding piece; and in combination with elastic reset of the spring and the elastic telescopic rod, automatic separation is performed after detection is completed, and the next round of circulation is started, so that continuous full-automatic detection is realized, and the detection efficiency and stability are effectively improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of testing devices, in particular to a signal amplifier testing device. BACKGROUND

[0002] The signal amplifier testing device is a device or system specially used for detecting, evaluating and verifying various performance indexes of a signal amplifier, and the sample detection work flow of the device in the prior art is divided into independent and time-interval-based sequences, so that the detection is divided into independent detection flows, thereby restricting the improvement of the overall detection efficiency.

[0003] In the prior art, such as the testing device for a low-noise amplifier provided in CN120009657A, the device is always in a full-load working state by continuously taking actions, so as to improve the detection efficiency, and the automatic clamping limiting and automatic blanking of the low-noise amplifier can be realized through the cooperation between the half-tooth ring, the driving tooth ring, the transmission tooth ring, the transmission gear, the screw rod seat and the clamping plate, so as to improve the automation degree of the device, and the stability of the low-noise amplifier during the test is improved through the clamping of the clamping plate on the low-noise amplifier, so as to improve the stability of the test process.

[0004] However, the current testing device still has many inconveniences in actual use, especially the sample at the detection position is limited by the detection time, the device needs to wait for the sample to move to the detection position and stop, then the detection component starts to descend and is connected with the sample to realize the detection, after the sample detection is completed, the detection component needs to be disconnected with the sample, and then rises, so that the conveying mechanism can be started again to carry the sample and move, that is, the detection mechanism and the conveying mechanism are essentially two independent structures, and the two cannot realize continuous and uninterrupted detection, thereby restricting the improvement of the overall detection efficiency, and therefore, the signal amplifier testing device is proposed. SUMMARY

[0005] One technical problem to be solved by the application is that the transportation action and the detection action of the device are independent in time, so that the device cannot realize continuous and uninterrupted detection, thereby restricting the improvement of the overall detection efficiency.

[0006] To solve the above technical problems, the embodiment of the present application provides a signal amplifier testing device, which comprises a body, an upgrade rod, a plurality of clamps, a protective plate, a fixed plate and an elastic telescopic rod, the fixed plate is arranged on the inner wall of the body, the protective plate is arranged on the upper part of the inner wall of the body, the upgrade rod is arranged on the rear side of the body, the inside of the body is provided with a conveying piece for synchronously moving a plurality of clamps, the upper part of the upgrade rod is provided with a sliding rod on both sides, the outer periphery of the two sliding rods is slidably connected with a sliding frame, the outer periphery of the sliding rod in the front part is provided with a spring, the left end of the spring is arranged on the right side of the sliding frame, the upper end of the elastic telescopic rod is arranged on the upper part of the sliding frame, the inside of the sliding frame is provided with a detection piece for clamping a detection amplifier, and the inside of the body is provided with a driving piece for synchronously moving the conveying piece and the detection piece.

[0007] Preferably, the conveying piece comprises a transmission gear one arranged on the upper part of the fixed plate, a load plate rotatably connected to the lower part of the transmission gear one, a plurality of transmission gears two and transmission gears three rotatably connected to the edges of the load plate and uniformly distributed, the plurality of transmission gears two are respectively engaged with each other and the transmission gear one, the transmission gears three are engaged with each other and the transmission gears two, and the clamps are arranged on the upper part of the transmission gears three.

[0008] Preferably, the detection piece comprises a fixed shell arranged in the inside of the upper part of the upgrade rod, a pushing block and two sliding blocks one slidably connected in the inside of the fixed shell, a limiting block one arranged on the side close to the pushing block and slidably arranged on the edge of the pushing block, a lifting shell slidably connected to the left and right sides of the lower part of the fixed shell, a sliding block two slidably connected in the inside of the lifting shell, the upper end of the sliding block two slidably connected in the inside of the sliding block one, and a sliding piece arranged in the inside of the sliding block two and used for slidingly inserting an amplifier interface.

[0009] Preferably, the sliding piece comprises a detection block one slidably connected in the inside of the sliding block two, a bevel gear rotatably connected in the inside of the sliding block two and engaged with the upper part of the detection block one, a screw rod slidably connected in the inside of the sliding block two and engaged in the inside of the bevel gear, and the end of the screw rod away from the pushing block is arranged in the inside of the sliding block two.

[0010] Preferably, the driving piece comprises a gear six rotatably connected to the upper part of the fixed plate, a bevel gear one arranged on the lower end of the gear six, a bevel gear two rotatably connected to the lower part of the fixed plate and engaged with the bevel gear one, a connecting plate one rotatably connected to the end of the bevel gear two away from the bevel gear one, a push rod arranged on the end of the connecting plate one away from the bevel gear two, and the end of the push rod away from the connecting plate one is slidably arranged on the lower part of the upgrade rod.

[0011] Preferably, the lower part of the carrier plate is provided with a transmission gear four, the lower part of the fixed plate is provided with a motor, the driving end of the motor is provided with a transmission gear five, and the transmission gear five and the transmission gear four are engaged with each other.

[0012] Preferably, the gear six and the transmission gear four are engaged with each other.

[0013] Preferably, the lower end of the elastic telescopic rod is arranged at the upper part of the pushing block.

[0014] Preferably, the middle part of the sliding block one is provided with a limiting block two, the inside of the fixed shell is provided with a limiting groove, the limiting block two slides in the limiting groove, and the edges of the pushing block are provided with two symmetrically distributed connecting plates two, and the lower ends of the connecting plates two are arranged on the outer wall of the lifting shell.

[0015] Preferably, the inside of the sliding block two is rotatably connected with a detection block two, one end of the detection block two close to the lifting shell is rotatably connected with a limiting plate, the limiting plate is slidably connected in the inside of the sliding block two, and the screw rod is engaged in the inside of the detection block two.

[0016] The present application has at least the following advantages: 1. The driving member is connected with the conveying member and the detection member through gears, bevel gears and push rods, etc. When the clamp carrying the sample moves to the lower part of the detection member, the driving member drives the lifting rod and the detection member to descend and approach the sample. Because the arc of the sliding rod is consistent with the rotating arc of the clamp, the detection member slides along the sliding rod with the sliding frame, and keeps synchronous movement trajectory with the clamp and the sample, thereby ensuring the detection alignment precision.

[0017] 2. When the detection member contacts the sample, the sample pushes the pushing block to move, so as to make the sliding frame extrude the spring and the elastic telescopic rod to contract. At the same time, through the linkage of the limiting block and the sliding block, the sliding member automatically adjusts the position and inserts into the sample interface, so as to complete the detection action. The whole process does not need manual intervention, and self-adaptive clamping detection is realized.

[0018] 3. After the sample detection is completed, the clamp carrying the sample continues to move, the driving member drives the lifting rod to rise, the pressure between the sample and the detection member is reduced, the elastic telescopic rod rebounds to push the pushing block to reset, the spring rebounds to drive the sliding frame and the detection member to reset, the detection member is separated from the sample, and the device immediately enters the detection cycle of the next sample, so as to greatly shorten the detection action time and improve the overall work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the present application; Figure 2 It is a fixed plate structure schematic view of the present application; Figure 3 Figure is a schematic view of the structure of the conveying member of the present application; Figure 4 Figure is a schematic view of the structure of the bevel gear two of the present application; Figure 5 Figure is a schematic view of the structure of the fixed shell of the present application; Figure 6 Figure is a schematic view of the structure of the limiting block one of the present application; Figure 7 Figure is a schematic view of the structure of the pushing block of the present application; Figure 8 Figure is a schematic view of the structure of the sliding block two of the present application; Figure 9 Figure is a schematic view of the structure of the embodiment 2 of the present application.

[0020] In the figure: 1, machine body; 11, upgrade rod; 111, sliding frame; 112, slide rod; 113, spring; 12, clamp; 13, protective plate; 14, fixed plate; 15, elastic telescopic rod; 2, conveying member; 21, carrier plate; 22, transmission gear one; 23, transmission gear two; 24, transmission gear three; 25, transmission gear four; 26, transmission gear five; 27, motor; 3, driving member; 31, gear six; 32, bevel gear one; 33, bevel gear two; 34, connecting plate one; 35, push rod; 4, detecting member; 41, fixed shell; 42, pushing block; 421, connecting plate two; 43, limiting block one; 44, lifting shell; 45, sliding block one; 46, sliding block two; 47, sliding member; 471, detecting block one; 472, screw rod; 473, helical gear; 474, detecting block two; 475, limiting plate; 48, limiting block two; 481, limiting groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0022] Embodiment 1: Please refer to Figures 1-8The application provides a technical scheme: a signal amplifier testing device, which comprises a body 1, an upgrading rod 11, a plurality of clamps 12, a protective plate 13, a fixed plate 14 and an elastic telescopic rod 15, the fixed plate 14 is arranged on the inner wall of the body 1, the protective plate 13 is rotatably arranged on the upper portion of the inner wall of the body 1, the upgrading rod 11 is slidably arranged on the rear side of the body 1, the inner portion of the body 1 is provided with a conveying piece 2 for synchronously moving the plurality of clamps 12, the upper portion of the upgrading rod 11 is provided with slide rods 112 on the front side and the rear side, the outer periphery of the two slide rods 112 is slidably connected with a sliding frame 111, the outer periphery of the front slide rod 112 is sleeved with a spring 113, the left end of the spring 113 is arranged on the right side of the sliding frame 111, the upper end of the elastic telescopic rod 15 is arranged on the upper portion of the sliding frame 111, the inner portion of the sliding frame 111 is provided with a detection piece 4 for clamping a detection amplifier, and the inner portion of the body 1 is provided with a driving piece 3 for synchronously moving the conveying piece 2 and the detection piece 4.

[0023] The upgrading rod 11, the clamps 12, the protective plate 13 and the fixed plate 14 respectively constitute the support structure and the lifting framework of the device, through the working of the conveying piece 2, the plurality of clamps 12 and the protective plate 13 can be driven to rotate on the upper portion of the body 1 at the same time, the clamping direction of the plurality of clamps 12 is always perpendicular to the upgrading rod 11, thereby the detection deviation of the detection piece 4 caused by the rotating angle of the clamps 12 can be reduced, when the clamp 12 with the sample moves to the lower portion of the detection piece 4, the driving piece 3 can synchronously drive the upgrading rod 11 and the detection piece 4 to lift and lower, so that the detection piece 4 approaches the sample. When the lower portion of the detection piece 4 contacts the clamp 12, the lower portion of the detection piece 4 is pushed by the clamp 12, so that the detection piece 4 pushes the sliding frame 111 to slide along the slide rod 112, the sliding frame 111 can extrude the spring 113 to contract and store energy when sliding, the curvature of the slide rod 112 is consistent with the rotating curvature of the clamp 12, so that the moving track of the sliding frame 111 and the detection piece 4 is consistent with the clamp 12, thereby the synchronous movement of the sliding frame 111, the detection piece 4, the clamp 12 and the sample can be realized, and the uninterrupted detection of the sample can be realized. Through the reverse pushing of the sample to work and clamp the interface of the sample, the pushing block 42 in the detection piece 4 extrudes the elastic telescopic rod 15 to contract, so that the detection is realized, when the clamp 12 with the sample continues to rotate and leave, the upgrading rod 11 is driven by the driving piece 3 to move upward, the pressure between the sample and the detection piece 4 is reduced, the elastic telescopic rod 15 rebounds to push the pushing block 42 to slide downward and push each component to reset, at the same time, after the upper portion of the clamp 12 is separated from the contact of the pushing block 42, the spring 113 rebounds to push the sliding frame 111 and the detection piece 4 to slide to reset, the detection piece 4 is separated from the sample, so that the uninterrupted automatic detection of the sample can be completed, the time length of the detection action is reduced, and the working efficiency of the device is increased.

[0024] Further, the conveying member 2 comprises a transmission gear one 22 arranged on the upper portion of the fixed plate 14, the lower portion of the transmission gear one 22 is rotatably connected with a carrier plate 21, the edges of the carrier plate 21 are rotatably connected with a plurality of uniformly distributed transmission gears two 23 and transmission gears three 24, the plurality of transmission gears two 23 are respectively engaged with the transmission gear one 22, the transmission gears three 24 are engaged with the transmission gears two 23, and the clamp 12 is arranged on the upper portion of the transmission gears three 24.

[0025] The lower portion of the carrier plate 21 is provided with a transmission gear four 25, the lower portion of the fixed plate 14 is provided with a motor 27, the driving end of the motor 27 is provided with a transmission gear five 26, the transmission gear five 26 is engaged with the transmission gear four 25.

[0026] The transmission gear one 22 is arranged on the upper portion of the fixed plate 14 through a rotating shaft, which is a passive driving structure, the carrier plate 21 rotatably connected with the lower portion of the transmission gear one 22 is used for bearing weight and as a platform, the transmission gears two 23 and the transmission gears three 24 on the upper portion of the carrier plate 21 are arranged radially outward with the transmission gear one 22 as the center, and the transmission gears two 23 are used for transmitting the transmission gear one 22 and the transmission gears three 24, at this time, the relative linear velocities of the three are consistent, when the motor 27 is started to drive the transmission gear five 26 to rotate, the transmission gear four 25 and the carrier plate 21 can be driven to rotate, because the rotation speed of the transmission gears three 24 is consistent with the revolution speed of the carrier plate 21, so the transmission gears three 24 form a "tidal locking" relative to the transmission gear one 22, the transmission gears three 24 always face the transmission gear one 22 on one side, thereby the angle of the clamp 12 on the upper portion of the transmission gears three 24 is relatively fixed and cannot be changed, thereby the angle of the sample placed on the clamp 12 can be kept constant, and the angle of the clamp 12 on the lower portion of the detection member 4 cannot be changed, thereby the stability of the device can be enhanced.

[0027] Further, the detection member 4 comprises a fixed shell 41 arranged on the upper portion of the lifting rod 11, the inside of the fixed shell 41 is slidably connected with a pushing block 42 and two sliding blocks one 45, the side close to the pushing block 42 of the sliding block one 45 is provided with a limiting block one 43, the limiting block one 43 slides on the edge of the pushing block 42, the lower portion of the fixed shell 41 is slidably connected with a lifting shell 44 on the left and right sides, the inside of the lifting shell 44 is slidably connected with a sliding block two 46, the upper end of the sliding block two 46 is slidably connected in the inside of the sliding block one 45, the inside of the sliding block two 46 is provided with a sliding member 47 for slidingly inserting into the amplifier interface.

[0028] The sliding piece 47 comprises a detection block one 471 slidingly connected inside the sliding block two 46, the inside of the sliding block two 46 is rotationally connected with a bevel gear 473, the bevel gear 473 is engaged on the upper portion of the detection block one 471, the inside of the sliding block two 46 is slidingly connected with a screw rod 472, the screw rod 472 is engaged inside the bevel gear 473, and one end of the screw rod 472 away from the pushing block 42 is arranged inside the sliding block two 46.

[0029] The lower end of the elastic telescopic rod 15 is arranged on the upper portion of the pushing block 42.

[0030] The middle portion of the sliding block one 45 is provided with a limiting block two 48, the inside of the fixed shell 41 is provided with a limiting groove 481, the limiting block two 48 is slidingly arranged inside the limiting groove 481, and the edge of the pushing block 42 is provided with two symmetrically distributed connecting plates two 421, the lower end of the connecting plates two 421 is arranged on the outer wall of the lifting shell 44 The fixed shell 41 is a fixed shell with an internal structure, the pushing block 42, the lifting shell 44 and the sliding block one 45 can slide inside the fixed shell 41, wherein the sliding block one 45 can only slide horizontally due to the limitation of the limiting block two 48, the lifting shell 44 is limited to only vertically slide inside the fixed shell 41, the sliding block two 46 is connected with the lifting shell 44 through the sliding piece 47, the lifting shell 44 can horizontally slide inside the sliding piece 47, the limiting block one 43 is a guide structure for limiting and driving the sliding block one 45 to slide, through the limitation of the limiting block one 43, the pushing block 42 can drive the sliding block one 45 to slide inside the fixed shell 41 when the pushing block 42 is lifted, the connecting plates two 421 are structures for connecting the pushing block 42 and the lifting shell 44, and are used for synchronizing the movement state of the pushing block 42 and the lifting shell 44, so that the lower portion of the pushing block 42 is stationary relative to the sliding piece 47.

[0031] When the upgrade rod 11 is lowered to carry the detection piece 4 to approach the clamp 12, the pushing block 42 first contacts the sample, and as the upgrade rod 11 is lowered, the pushing block 42 is pushed to move upward relative to the upgrade rod 11 due to the resistance of the sample, the pushing block 42 pulls the two sliding blocks I 45 to slide to the sliding movement of the pushing block 42, thereby reducing the distance between them, since the pushing block 42 is attached to the upper part of the sample, the lifting shell 44 and the sliding piece 47 are always located on both sides of the sample, which can always align the interface between the sliding piece 47 and the sample; as the pushing block 42 moves relative to the fixed shell 41, the sliding block II 46 and the sliding piece 47 also move relative to each other, the sliding block II 46 is driven by the lifting shell 44 to move upward at the lower end of the sliding block I 45, so that the sliding block II 46 can approach the sample while the sample is stationary in the vertical direction, the sliding block II 46 is away from the lifting shell 44, and the sliding block II 46 moves horizontally to drive the bevel gear 473 to move synchronously, the bevel gear 473 is pushed to rotate by the screw 472, the screw 472 slides out of the sliding block II 46, and after the bevel gear 473 is driven to rotate, it can be pushed by the slope to make the detection block I 471 slide horizontally out of the sliding block II 46, the detection block I 471 can be inserted into the inside of the interface of the sample, thereby achieving good contact between the sliding piece 47 and the sample interface.

[0032] Further, the driving piece 3 includes a gear six 31 rotatably connected to the upper part of the fixed plate 14, the lower end of the gear six 31 is provided with a bevel gear I 32, the lower part of the fixed plate 14 is rotatably connected with a bevel gear II 33, the bevel gear II 33 and the bevel gear I 32 are meshed with each other, the end of the bevel gear II 33 away from the bevel gear I 32 is rotatably connected with a connecting plate I 34, the end of the connecting plate I 34 away from the bevel gear II 33 is provided with a push rod 35, and the end of the push rod 35 away from the connecting plate I 34 is slidably arranged in the lower part of the upgrade rod 11.

[0033] The gear six 31 and the transmission gear IV 25 are meshed with each other.

[0034] The gear ratio between the gear six 31 and the transmission gear IV 25 is 1:3, which makes the transmission gear IV 25 rotate one circle, and the gear six 31 needs to rotate three circles, when the transmission gear IV 25 rotates to drive the gear six 31 and the bevel gear I 32 to rotate, the bevel gear I 32 can drive the connecting plate I 34 and the push rod 35 to rotate through the bevel gear II 33, and the push rod 35 can slide up and down on the upgrade rod 11 when rotating, and when the detection piece 4 is pressed on the upper part of the clamp 12 and the sample, the position of the clamp 12 is located on the left side of the center of the machine body 1, that is, the position of the sliding frame 111 is pushed to the position of one third of the period of revolution of the clamp 12.

[0035] Example 2: please refer to Figure 9The application provides a technical scheme: the inside of the sliding block two 46 is rotationally connected with a detection block two 474, the one end of the detection block two 474 close to the lifting shell 44 is rotationally connected with a limiting plate 475, the limiting plate 475 is slidingly connected in the inside of the sliding block two 46, and the screw rod 472 is engaged in the inside of the detection block two 474.

[0036] The one end of the detection block two 474 close to the lifting shell 44 is provided with the limiting plate 475 capable of accommodating the rotation of the detection block two 474, the limiting plate 475 can prevent the detection block two 474 from excessively sliding, when the sliding block two 46 is pushed to slide away from the lifting shell 44, the limiting plate 475 is pushed to rotate by the screw rod 472 and rotates to slide out away from the one side of the lifting shell 44, the detection block two 474 can be inserted into the joint of the sample when rotating and sliding out, and the adaptation of the sample needing rotational connection is implemented.

[0037] Although the embodiments of the application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace and vary in many ways without departing from the principles and spirit of the application, which can be understood by those skilled in the art.

Claims

1. A signal amplifier testing device, comprising a body (1), an upgrading rod (11), multiple clamps (12), a protective plate (13), a fixing plate (14), and an elastic telescopic rod (15), characterized in that: The fixing plate (14) is disposed on the inner wall of the body (1), the protective plate (13) rotates on the upper part of the inner wall of the body (1), the upgrading rod (11) slides on the rear side of the body (1), the body (1) is provided with a transport component (2) for synchronizing the movement of multiple clamps (12), the upper front and rear sides of the upgrading rod (11) are provided with slide rods (112), the outer periphery of the two slide rods (112) is slidably connected with a sliding frame (111), the outer periphery of the front slide rod (112) is sleeved with a spring (113), the left end of the spring (113) is disposed on the right side of the sliding frame (111), the upper end of the elastic telescopic rod (15) is disposed on the upper part of the sliding frame (111), the sliding frame (111) is provided with a detection component (4) for clamping the detection amplifier, and the body (1) is provided with a drive component (3) for synchronizing the movement of the transport component (2) and the detection component (4).

2. The signal amplifier testing device according to claim 1, characterized in that: The transport component (2) includes a transmission gear 1 (22) disposed on the upper part of the fixed plate (14). The lower part of the transmission gear 1 (22) is rotatably connected to a carrier plate (21). Multiple evenly distributed transmission gears 2 (23) and transmission gears 3 (24) are rotatably connected to the edge of the carrier plate (21). The multiple transmission gears 2 (23) mesh with the transmission gear 1 (22) respectively. The transmission gears 3 (24) mesh with the transmission gears 2 (23). The clamp (12) is disposed on the upper part of the transmission gears 3 (24).

3. The signal amplifier testing device according to claim 1, characterized in that: The detection component (4) includes a fixed shell (41) disposed inside the upper part of the upgrading rod (11). A push block (42) and two sliding blocks (45) are slidably connected inside the fixed shell (41). A limit block (43) is provided on the side of the sliding block (45) near the push block (42). The limit block (43) slides at the edge of the push block (42). A lifting shell (44) is slidably connected to the lower left and right sides of the fixed shell (41). A sliding block (46) is slidably connected inside the lifting shell (44). The upper end of the sliding block (46) is slidably connected inside the sliding block (45). A sliding member (47) for sliding insertion into the amplifier interface is provided inside the sliding block (46).

4. The signal amplifier testing device according to claim 3, characterized in that: The sliding member (47) includes a detection block (471) slidably connected inside the sliding block (46). A helical gear (473) is rotatably connected inside the sliding block (46). The helical gear (473) meshes with the upper part of the detection block (471). A screw (472) is slidably connected inside the sliding block (46). The screw (472) meshes with the inside of the helical gear (473). One end of the screw (472) away from the push block (42) is located inside the sliding block (46).

5. The signal amplifier testing device according to claim 1, characterized in that: The driving component (3) includes a gear six (31) rotatably connected to the upper part of the fixed plate (14). A bevel gear one (32) is provided at the lower end of the gear six (31). A bevel gear two (33) is rotatably connected to the lower part of the fixed plate (14). The bevel gear two (33) and the bevel gear one (32) mesh with each other. A connecting plate one (34) is rotatably connected to the end of the bevel gear two (33) away from the bevel gear one (32). A push rod (35) is provided at the end of the connecting plate one (34) away from the bevel gear two (33). The end of the push rod (35) away from the connecting plate one (34) slides on the lower part of the upgrading rod (11).

6. The signal amplifier testing device according to claim 2, characterized in that: The lower part of the carrier plate (21) is provided with a transmission gear four (25), the lower part of the fixed plate (14) is provided with a motor (27), the driving end of the motor (27) is provided with a transmission gear five (26), and the transmission gear five (26) and the transmission gear four (25) mesh with each other.

7. The signal amplifier testing apparatus according to claim 5 or 6, characterized in that: The sixth gear (31) and the fourth transmission gear (25) mesh with each other.

8. The signal amplifier testing device according to claim 3, characterized in that: The lower end of the elastic telescopic rod (15) is located on the upper part of the push block (42).

9. The signal amplifier testing device according to claim 3, characterized in that: The sliding block 1 (45) is provided with a limiting block 2 (48) in the middle. The fixed shell (41) has a limiting groove (481) inside. The limiting block 2 (48) slides inside the limiting groove (481). The pushing block (42) is provided with two symmetrically distributed connecting plates 2 (421) at the edge. The lower end of the connecting plate 2 (421) is provided on the outer wall of the lifting shell (44).

10. The signal amplifier testing device according to claim 4, characterized in that: The sliding block 2 (46) is rotatably connected to the detection block 2 (474). The detection block 2 (474) is rotatably connected to a limiting plate (475) at one end near the lifting shell (44). The limiting plate (475) is slidably connected inside the sliding block 2 (46). The screw (472) is engaged inside the detection block 2 (474).

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