Adjustable pitch differential probe

Abstract

The application relates to an adjustable interval differential probe, relates to the technical field of differential probes, and comprises a differential probe assembly and an adjusting assembly; the differential probe assembly comprises two L-shaped mounting plates and mounting seats fixed on the surfaces of the two L-shaped mounting plates respectively, the surfaces of the mounting seats are provided with probe main bodies in a penetrating mode, and the surfaces of the mounting seats are provided with joints electrically connected with the probe main bodies; and the adjusting assembly comprises an adjusting seat. Through the arrangement of the differential probe assembly and the adjusting assembly, the differential probe can be precisely moved on the ball screw guide rail by rotating the fine adjustment knob and driving the sliding block according to actual conditions during actual use, the probe main bodies on the sliding plate are driven to approach the probe main bodies on the fixed plate, the interval between the two probe main bodies is precisely adjusted, the differential probe can be adjusted according to the required interval, and therefore the differential probe is suitable for various intervals of to-be-measured objects.

Description

Technical Field

[0001] This application relates to the field of differential probe technology, and in particular to adjustable-pitch differential probes. Background Technology

[0002] A differential probe is an oscilloscope probe designed using the differential amplification principle. It is primarily used to measure high-speed digital signals, RF signals, and other circuits susceptible to common-mode interference. The differential probe works by measuring the voltage difference between two signal lines. These two signal lines have the same amplitude but opposite phase. This design ensures that noise appears on both signal lines in the same way, thus canceling each other out and maintaining signal stability. The output of the differential probe is the difference between these two signals. This design gives it a high degree of common-mode noise suppression capability.

[0003] During testing, conventional probes, due to their fixed spacing, are difficult to adapt to diverse testing scenarios. Changing the device under test (DUT) requires frequent replacement of probes with different spacings, resulting in a cumbersome testing process and significantly reduced efficiency. Therefore, this application proposes an adjustable-spacing differential probe. Summary of the Invention

[0004] The purpose of this application is to provide an adjustable pitch differential probe.

[0005] The adjustable-spacing differential probe provided in this application adopts the following technical solution:

[0006] Adjustable pitch differential probes, including:

[0007] Differential probe assembly and adjustment assembly;

[0008] The differential probe assembly includes two L-shaped mounting plates and mounting bases respectively fixed on the surfaces of the two L-shaped mounting plates. The probe body is disposed through the surface of the mounting base, and the surface of the mounting base is provided with a connector electrically connected to the probe body.

[0009] The adjustment assembly includes an adjustment seat with a rectangular groove on its surface. A sliding plate is slidably mounted on the inner wall of the rectangular groove, and a fixing plate corresponding to the sliding plate is fixedly mounted on the inner wall of the rectangular groove. The ends of two L-shaped mounting plates are fixedly connected to the surfaces of the sliding plate and the fixing plate, respectively. The adjustment assembly also includes a ball screw guide rail fixed to the inner wall of the rectangular groove. A slider is slidably mounted on the inner wall of the ball screw guide rail, and the end of the slider is fixedly connected to the surface of the sliding plate. A fine-tuning knob for driving the slider to move is provided on the outer surface of the adjustment seat.

[0010] Preferably, the inner wall of the rectangular groove is provided with a rotating hole, the inner wall of the rotating hole is fixedly provided with a sleeve, and the inner wall of the sleeve is rotatably provided with a connecting shaft extending into the ball screw guide and fixedly connected to the end of the ball screw inside the ball screw guide. The fine adjustment knob is fixedly provided at the end of the connecting shaft.

[0011] By adopting the above technical solution, the rotation of the fine-tuning knob can drive the screw inside the ball screw guide to rotate, thereby driving the slider on the ball screw guide to move automatically.

[0012] Preferably, the inner wall of the rectangular slide groove is fixed with two symmetrical limiting rods, and the side of the sliding plate is provided with two sliding holes that are slidably connected to the surfaces of the two limiting rods respectively. The surface of the fixed plate is provided with two fixing holes that are fixedly connected to the surfaces of the two limiting rods respectively. The surface of the limiting rod is fitted with a limiting spring, and the two ends of the limiting spring are fixedly connected to the surfaces of the sliding plate and the fixed plate respectively.

[0013] By adopting the above technical solution, the stability of the sliding plate during sliding can be effectively guaranteed under the action of the limiting rod, thereby ensuring the accuracy of adjustment. At the same time, the sliding plate and the fixed plate can be effectively limited and buffered under the action of the limiting spring.

[0014] Preferably, the upper surface of the adjusting seat is provided with a vertical threaded hole extending into the rectangular slide groove, and the inner wall of the vertical threaded hole is threaded with a fixing screw for locking the sliding plate.

[0015] By adopting the above technical solution, the fixing screws can be tightened after the sliding plate is moved to the appropriate position, thereby effectively locking the sliding plate and ensuring the stability of the two probe bodies during measurement.

[0016] Preferably, the surface of the L-shaped mounting plate on the fixing plate is provided with a transverse threaded hole, and the inner wall of the transverse threaded hole is threaded with a set screw.

[0017] By adopting the above technical solution, the minimum distance between the two probe bodies can be limited under the action of the set screw, thus avoiding the collision of probes.

[0018] Preferably, the bottom of the adjusting seat is provided with a fixing component for fixing the adjusting seat. The fixing component includes a placement seat disposed at the bottom of the adjusting seat, and two symmetrical positioning clamps for clamping and fixing the adjusting seat are slidably disposed on the outer surface of the placement seat.

[0019] By adopting the above technical solution, the adjustment seat can be effectively clamped and fixed on the surface of the placement seat by two positioning clamps.

[0020] Preferably, the placement seat has a rectangular cavity inside, and rectangular openings are formed on both sides of the placement seat. L-shaped rods are slidably arranged on the inner walls of the two rectangular openings. The two positioning clamps are respectively fixed to the ends of the two L-shaped rods. Two symmetrical partitions are fixed on the inner wall of the rectangular cavity. Bidirectional threaded columns penetrating the two partitions are rotatably arranged on the surfaces of the two partitions. The ends of the two L-shaped rods are respectively provided with cylindrical threaded grooves that are threaded to the outer surfaces of the two ends of the bidirectional threaded columns.

[0021] By adopting the above technical solution, the rotation of the bidirectional threaded column and the action of the two cylindrical threaded grooves can drive the two L-shaped rods to move towards the middle simultaneously.

[0022] Preferably, the back of the placement seat is rotatably provided with a rotating rod extending into the rectangular cavity. One end of the rotating rod is fixed with a rotating block for rotating the rotating rod, and the other end of the rotating rod is fixed with a driving bevel gear. The surface of the bidirectional threaded column is fixed with a driven bevel gear that meshes with the driving bevel gear.

[0023] By adopting the above technical solution, the rotating block can drive the rotating rod to rotate, the rotation of the rotating rod can drive the active bevel gear to rotate, and the rotation of the active bevel gear can drive the driven bevel gear to rotate, thereby enabling the bidirectional threaded column to rotate automatically through the rotation of the rotating block.

[0024] Preferably, the upper surface of the placement seat is provided with a cleaning component for cleaning dust and debris on the surface of the placement seat before the adjustment seat is installed. The cleaning component includes an L-shaped limiting plate fixed to the back of the placement seat and a strip groove opened on the surface of the L-shaped limiting plate. The inner wall of the strip groove is provided with a pipe, and a plurality of high-pressure jet heads inclined toward the upper surface of the placement seat are fixed at equal intervals on the surface of the pipe.

[0025] By adopting the above technical solution, high-pressure airflow can be sprayed from the inclined high-pressure jet head on the pipeline to automatically clean the dust and debris on the surface of the placement seat, ensuring the cleanliness of the contact surface between the adjustment seat and the placement seat, thereby ensuring the accuracy of the measurement.

[0026] Preferably, two symmetrical push-type air pumps are fixedly mounted on the surfaces of both partitions, and pressure plates are fixedly mounted on the end surfaces of both L-shaped rods. The surfaces of the pressure plates are fixedly connected to the pressing ends of the push-type air pumps. Each end of the push-type air pump is provided with an air intake pipe and an inflation hose. A filter cover is provided at the end of the air intake pipe, and the other end of the inflation hose is connected to a pipe. An air intake one-way valve and an inflation one-way valve are respectively provided on the surfaces of the air intake pipe and the inflation hose. Two ventilation holes communicating with the rectangular cavity are opened on the back of the placement base, and filter screens are fixedly mounted on the inner walls of both ventilation holes.

[0027] By adopting the above technical solution, the press-type air pump can be squeezed by the pressure plate, thereby achieving the purpose of automatically inflating the inside of the pipeline.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. This invention, by setting up a differential probe assembly and an adjustment assembly, enables the differential probe to precisely move a slider on a ball screw guide rail by rotating a fine-tuning knob during actual use, thereby moving the probe body on the sliding plate closer to the probe body on the fixed plate, thus achieving precise adjustment of the distance between the two probe bodies. This allows the differential probe to be adjusted according to the required distance, making it suitable for test objects with various distances.

[0030] 2. By setting up a fixing component, the differential probe can be used in practice by placing the adjusting seat on the placement seat, rotating the rotating block to drive the rotating rod to rotate, which in turn drives the active bevel gear to rotate, which in turn drives the driven bevel gear and the bidirectional threaded column to rotate. The rotation of the bidirectional threaded column, under the action of the two cylindrical threaded grooves, drives the two L-shaped rods to move automatically towards the center, thereby driving the two positioning clamps to move towards the center at the same time, so that the two positioning clamps can effectively clamp and fix the adjusting seat, thereby achieving the purpose of quickly fixing and using the differential probe.

[0031] 3. By incorporating a cleaning component, this invention allows for the repeated forward and reverse rotation of a rotating block before the differential probe is fixed in place. This rotation drives two L-shaped rods to move simultaneously towards the center and then to both sides. As the L-shaped rods move towards the center, they compress the pressure plate against the press-type air pump, causing it to compress and inflate the pipe through the air hose. The airflow is then ejected through an inclined high-pressure jet nozzle onto the surface of the placement seat, effectively cleaning dust and debris. This ensures the cleanliness between the adjustment seat and the placement seat, thereby guaranteeing the accuracy of the adjustment seat's position after installation and ensuring the accuracy of the measurement. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0033] Figure 2 This is a side view of the structure of Embodiment 1 of this application;

[0034] Figure 3 This is a top view of the structure of Embodiment 1 of this application;

[0035] Figure 4 This is a top-section structural diagram of Embodiment 1 of this application;

[0036] Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this application;

[0037] Figure 6 This is a rear view structural diagram of Embodiment 2 of this application;

[0038] Figure 7 This is a schematic diagram of the overall structure of the placement seat in Embodiment 2 of this application;

[0039] Figure 8 This is a top-section structural diagram of the placement seat in Embodiment 2 of this application;

[0040] Figure 9 This application is true Figure 8 Enlarged structural diagram at point A in the middle.

[0041] Explanation of reference numerals in the attached figures:

[0042] 100. Differential probe assembly; 101. L-shaped mounting plate; 102. Mounting base; 103. Probe body; 104. Connector;

[0043] 200. Adjustment assembly; 201. Adjustment seat; 202. Sliding plate; 203. Fixing plate; 204. Ball screw guide rail; 205. Slider; 206. Fine adjustment knob; 207. Sleeve; 208. Limit rod; 209. Limit spring; 2010. Fixing screw; 2011. Set screw;

[0044] 300. Fixing component; 301. Placement seat; 302. Positioning clamp; 303. L-shaped rod; 304. Partition plate; 305. Two-way threaded column; 306. Cylindrical threaded groove; 307. Rotating rod; 308. Rotating block; 309. Driving bevel gear; 3010. Driven bevel gear;

[0045] 400. Cleaning assembly; 401. L-shaped limit plate; 402. Pipeline; 403. High-pressure jet nozzle; 404. Press-type air pump; 405. Pressure plate; 406. Suction pipe; 407. Inflation hose; 408. Filter cover; 409. Suction check valve; 4010. Inflation check valve; 4011. Filter screen. Detailed Implementation

[0046] The following combination Figures 1 to 9 This application will be described in further detail.

[0047] Example 1

[0048] An adjustable-pitch differential probe, as referenced Figures 1 to 4The assembly includes a differential probe assembly 100 and an adjustment assembly 200. The differential probe assembly 100 includes two L-shaped mounting plates 101 and mounting seats 102 respectively fixed to the surfaces of the two L-shaped mounting plates 101. A probe body 103 is disposed through the surface of the mounting seat 102, and a connector 104 electrically connected to the probe body 103 is provided on the surface of the mounting seat 102. The adjustment assembly 200 includes an adjustment seat 201. A rectangular groove is formed on the surface of the adjustment seat 201, and a sliding plate 202 is slidably disposed on the inner wall of the rectangular groove. The inner wall of the rectangular slide groove is fixed with a fixing plate 203 corresponding to the sliding plate 202. The ends of the two L-shaped mounting plates 101 are fixedly connected to the surfaces of the sliding plate 202 and the fixing plate 203, respectively. The adjustment assembly 200 also includes a ball screw guide rail 204 fixedly mounted on the inner wall of the rectangular slide groove. A slider 205 is slidably mounted on the inner wall of the ball screw guide rail 204. The end of the slider 205 is fixedly connected to the surface of the sliding plate 202. The outer surface of the adjustment seat 201 is provided with a fine-tuning knob 206 for driving the slider 205 to move.

[0049] Please refer to this carefully. Figure 2 and Figure 4 The inner wall of the rectangular slide is provided with a rotating hole, and a sleeve 207 is fixedly provided on the inner wall of the rotating hole. A connecting shaft is rotatably provided on the inner wall of the sleeve 207, extending into the ball screw guide 204 and fixedly connected to the end of the ball screw inside the ball screw guide 204. The fine adjustment knob 206 is fixedly provided on the end of the connecting shaft.

[0050] Specifically, the rotation of the fine-tuning knob 206 can drive the screw inside the ball screw guide 204 to rotate, thereby driving the slider 205 on the ball screw guide 204 to move automatically.

[0051] Please refer to this carefully. Figure 2 and Figure 4 The inner wall of the rectangular slide groove is fixed with two symmetrical limiting rods 208, and the side of the sliding plate 202 is provided with two sliding holes that are slidably connected to the surfaces of the two limiting rods 208 respectively. The surface of the fixed plate 203 is provided with two fixing holes that are fixedly connected to the surfaces of the two limiting rods 208 respectively. The surface of the limiting rods 208 is fitted with a limiting spring 209, and the two ends of the limiting spring 209 are fixedly connected to the surfaces of the sliding plate 202 and the fixed plate 203 respectively.

[0052] Specifically, the limiting rod 208 effectively ensures the stability of the sliding plate 202 during sliding, thereby ensuring the accuracy of adjustment. At the same time, the limiting spring 209 effectively limits and buffers the sliding plate 202 and the fixed plate 203.

[0053] Please refer to this carefully. Figure 2 and Figure 3The upper surface of the adjusting seat 201 is provided with a vertical threaded hole extending into the rectangular slide groove, and the inner wall of the vertical threaded hole is threaded with a fixing screw 2010 for locking the sliding plate 202.

[0054] Specifically, after the sliding plate 202 moves to the appropriate position, the fixing screw 2010 can be tightened to effectively lock the sliding plate 202, thereby ensuring the stability of the two probe bodies 103 during measurement.

[0055] Please refer to this carefully. Figure 2 and Figure 3 The surface of the L-shaped mounting plate 101 on the fixing plate 203 is provided with a transverse threaded hole, and the inner wall of the transverse threaded hole is threaded with a set screw 2011.

[0056] Specifically, the minimum distance between the two probe bodies 103 can be limited by the action of the set screw 2011, so as to avoid the collision of probes.

[0057] In this embodiment, by setting up a differential probe assembly 100 and an adjustment assembly 200, the differential probe can, in actual use, drive the slider 205 to move precisely on the ball screw guide rail 204 by rotating the fine adjustment knob 206, thereby driving the probe body 103 on the sliding plate 202 to move closer to the probe body 103 on the fixed plate 203, thereby achieving precise adjustment of the distance between the two probe bodies 103. This allows the differential probe to be adjusted according to the required distance, making it suitable for test objects with various distances.

[0058] Example 2

[0059] Based on Example 1, referring to Figures 5 to 9 And unlike Example 1, the following is true:

[0060] Please refer to this carefully. Figure 7 and Figure 8 The bottom of the adjusting seat 201 is provided with a fixing component 300 for fixing the adjusting seat 201. The fixing component 300 includes a placement seat 301 provided at the bottom of the adjusting seat 201. Two symmetrical positioning clamps 302 for clamping and fixing the adjusting seat 201 are slidably provided on the outer surface of the placement seat 301.

[0061] Specifically, the adjusting seat 201 can be effectively clamped and fixed to the surface of the placement seat 301 by two positioning clamps 302.

[0062] Please refer to this carefully. Figure 8 and Figure 9The placement seat 301 has a rectangular cavity inside, and rectangular openings are provided on both sides of the placement seat 301. L-shaped rods 303 are slidably provided on the inner walls of the two rectangular openings. Two positioning clamps 302 are respectively fixed to the ends of the two L-shaped rods 303. Two symmetrical partitions 304 are fixed on the inner wall of the rectangular cavity. Two bidirectional threaded columns 305 are rotatably provided on the surfaces of the two partitions 304, penetrating the two partitions 304. The ends of the two L-shaped rods 303 are respectively provided with cylindrical threaded grooves 306 that are threaded to the outer surfaces of the two ends of the bidirectional threaded columns 305.

[0063] Specifically, the rotation of the bidirectional threaded column 305, along with the action of the two cylindrical threaded grooves 306, can drive the two L-shaped rods 303 to move simultaneously toward the center.

[0064] Please refer to this carefully. Figure 8 and Figure 9 The back of the placement seat 301 is rotatably provided with a rotating rod 307 extending into the rectangular cavity. One end of the rotating rod 307 is fixed with a rotating block 308 for rotating the rotating rod 307, and the other end of the rotating rod 307 is fixed with a driving bevel gear 309. The surface of the bidirectional threaded column 305 is fixed with a driven bevel gear 3010 that meshes with the driving bevel gear 309.

[0065] Specifically, the rotating block 308 can drive the rotating rod 307 to rotate, the rotation of the rotating rod 307 can drive the active bevel gear 309 to rotate, the rotation of the active bevel gear 309 can drive the driven bevel gear 3010 to rotate, thereby driving the bidirectional threaded column 305 to rotate automatically through the rotation of the rotating block 308.

[0066] In this embodiment, by setting the fixing component 300, the differential probe can be used in practice by placing the adjusting seat 201 on the placement seat 301, rotating the rotating block 308 to drive the rotating rod 307 to rotate, the rotation of the rotating rod 307 to drive the active bevel gear 309 to rotate, the rotation of the active bevel gear 309 to drive the driven bevel gear 3010 and the bidirectional threaded column 305 to rotate, and the rotation of the bidirectional threaded column 305, under the action of the two cylindrical threaded grooves 306, drives the two L-shaped rods 303 to move automatically to the middle, thereby driving the two positioning clamps 302 to move to the middle at the same time, so that the two positioning clamps 302 can effectively clamp and fix the adjusting seat 201, thereby achieving the purpose of quickly fixing and using the differential probe.

[0067] Example 3

[0068] Based on Embodiment 1 and Embodiment 2, referring to Figures 7 to 9 And unlike Embodiment 1 and Embodiment 2, the following is true:

[0069] Please refer to this carefully. Figure 7 and Figure 8 The upper surface of the placement seat 301 is provided with a cleaning component 400 for cleaning dust and debris on the surface of the placement seat 301 before the adjustment seat 201 is installed. The cleaning component 400 includes an L-shaped limiting plate 401 fixed on the back of the placement seat 301 and a strip groove opened on the surface of the L-shaped limiting plate 401. A pipe 402 is fixed on the inner wall of the strip groove, and a plurality of high-pressure jet heads 403 inclined toward the upper surface of the placement seat 301 are fixed at equal intervals on the surface of the pipe 402.

[0070] Specifically, the high-pressure airflow ejected by the inclined high-pressure jet head 403 on the pipe 402 can automatically clean the dust and debris on the surface of the placement seat 301, ensuring the cleanliness of the contact surface between the adjustment seat 201 and the placement seat 301, thereby ensuring the accuracy of the measurement.

[0071] Please refer to this carefully. Figure 8 and Figure 9 Two symmetrical press-type air pumps 404 are fixedly mounted on the surfaces of the two partitions 304, and pressure plates 405 are fixedly mounted on the end surfaces of the two L-shaped rods 303. The surface of the pressure plates 405 is fixedly connected to the pressing end of the press-type air pumps 404. The ends of the press-type air pumps 404 are respectively provided with an air intake pipe 406 and an air inflation hose 407. The end of the air intake pipe 406 is provided with a filter cover 408. The other end of the air inflation hose 407 is connected to the pipe 402. The surfaces of the air intake pipe 406 and the air inflation hose 407 are respectively provided with an air intake one-way valve 409 and an air inflation one-way valve 4010. Two ventilation holes communicating with the rectangular cavity are opened on the back of the placement seat 301, and a filter screen 4011 is fixedly mounted on the inner wall of the two ventilation holes.

[0072] Specifically, the pressure plate 405 can squeeze the press-type air pump 404 to achieve the purpose of automatically inflating the inside of the pipe 402.

[0073] In this embodiment, by setting up the cleaning component 400, before fixing the differential probe, the rotating block 308 can be rotated repeatedly in both directions to drive the two L-shaped rods 303 to move towards the middle at the same time and then move towards both sides at the same time. When the L-shaped rods 303 move towards the middle, they can drive the pressure plate 405 to squeeze the press-type air pump 404, compressing the press-type air pump 404, and inflating the pipe 402 through the air hose 407, so that the airflow is sprayed out through the inclined high-pressure jet head 403 to the surface of the placement seat 301, effectively cleaning the dust and debris on the surface of the placement seat 301, thereby ensuring the cleanliness between the adjustment seat 201 and the placement seat 301, and thus ensuring the accuracy of the position of the adjustment seat 201 after installation, and ensuring the accuracy of the measurement.

[0074] Working principle:

[0075] In practical use, this differential probe can precisely move the slider 205 on the ball screw guide rail 204 by rotating the fine-tuning knob 206, according to the actual situation. This causes the probe body 103 on the sliding plate 202 to move closer to the probe body 103 on the fixed plate 203, thereby achieving precise adjustment of the distance between the two probe bodies 103. This allows the differential probe to be adjusted to the required distance, making it suitable for measuring objects with various distances. Furthermore, in practical use, after placing the adjusting seat 201 on the placement seat 301, rotating the rotating block 308 drives the rotating rod 307 to rotate. The rotation of the rotating rod 307 drives the active bevel gear 309 to rotate, which in turn drives the driven bevel gear 3010 and the bidirectional threaded column 305 to rotate. The rotation of the bidirectional threaded column 305, under the action of the two cylindrical threaded grooves 306, causes the two L-shaped rods 303 to automatically move towards the center, thereby simultaneously moving the two positioning clamps 302 towards the center. This allows the two positioning clamps 302 to effectively clamp and fix the adjusting seat 201, thus achieving the purpose of quickly fixing the differential probe for use. Furthermore, in actual use, after placing the adjusting seat 201 on the placement seat 301, the differential probe can be rotated... The rotating block 308 drives the rotating rod 307 to rotate. The rotation of the rotating rod 307 drives the driving bevel gear 309 to rotate. The rotation of the driving bevel gear 309 drives the driven bevel gear 3010 and the bidirectional threaded column 305 to rotate. The rotation of the bidirectional threaded column 305, under the action of the two cylindrical threaded grooves 306, drives the two L-shaped rods 303 to move automatically towards the center, thereby driving the two positioning clamps 302 to move towards the center simultaneously. This allows the two positioning clamps 302 to effectively clamp and fix the adjusting seat 201, thus achieving the purpose of quickly fixing and using the differential probe. Furthermore, before fixing and using the differential probe, it can be rotated repeatedly to ensure proper positioning. The reverse rotating block 308 drives the two L-shaped rods 303 to move simultaneously towards the center and then simultaneously to both sides. When the L-shaped rods 303 move towards the center, they can drive the pressure plate 405 to squeeze the press-type air pump 404, compressing the press-type air pump 404 and inflating the pipe 402 through the air hose 407. The airflow is then sprayed out through the inclined high-pressure jet head 403 onto the surface of the placement seat 301, effectively cleaning the dust and debris on the surface of the placement seat 301. This ensures the cleanliness between the adjusting seat 201 and the placement seat 301, thereby ensuring the accuracy of the position of the adjusting seat 201 after installation and ensuring the accuracy of the measurement.

[0076] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable-pitch differential probe, characterized in that, include: Differential probe assembly (100) and adjustment assembly (200); The differential probe assembly (100) includes two L-shaped mounting plates (101) and mounting bases (102) respectively fixed on the surfaces of the two L-shaped mounting plates (101). The surface of the mounting base (102) is provided with a probe body (103) through it, and the surface of the mounting base (102) is provided with a connector (104) electrically connected to the probe body (103). The adjustment assembly (200) includes an adjustment seat (201), the surface of which is provided with a rectangular groove. A sliding plate (202) is slidably disposed on the inner wall of the rectangular groove, and a fixing plate (203) corresponding to the sliding plate (202) is fixedly disposed on the inner wall of the rectangular groove. The ends of the two L-shaped mounting plates (101) are respectively fixedly connected to the surfaces of the sliding plate (202) and the fixing plate (203). The adjustment assembly (200) also includes a ball screw guide rail (204) fixedly disposed on the inner wall of the rectangular groove. A slider (205) is slidably disposed on the inner wall of the ball screw guide rail (204). The end of the slider (205) is fixedly connected to the surface of the sliding plate (202), and a fine-tuning knob (206) for driving the slider (205) to move is provided on the outer surface of the adjustment seat (201).

2. The adjustable spacing differential probe according to claim 1, characterized in that, The inner wall of the rectangular groove is provided with a rotating hole, and a sleeve (207) is fixedly provided on the inner wall of the rotating hole. The inner wall of the sleeve (207) is rotatably provided with a connecting shaft that extends into the ball screw guide rail (204) and is fixedly connected to the end of the ball screw inside the ball screw guide rail (204). The fine adjustment knob (206) is fixedly provided at the end of the connecting shaft.

3. The adjustable spacing differential probe according to claim 1, characterized in that, The inner wall of the rectangular slide groove is fixed with two symmetrical limiting rods (208), and the side of the sliding plate (202) is provided with two sliding holes that are slidably connected to the surfaces of the two limiting rods (208). The surface of the fixed plate (203) is provided with two fixing holes that are fixedly connected to the surfaces of the two limiting rods (208). The surface of the limiting rods (208) is fitted with a limiting spring (209), and the two ends of the limiting spring (209) are fixedly connected to the surfaces of the sliding plate (202) and the fixed plate (203) respectively.

4. The adjustable spacing differential probe according to claim 1, characterized in that, The upper surface of the adjusting seat (201) is provided with a vertical threaded hole extending into the rectangular slide groove, and the inner wall of the vertical threaded hole is threaded with a fixing screw (2010) for locking the sliding plate (202).

5. The adjustable spacing differential probe according to claim 1, characterized in that, The L-shaped mounting plate (101) on the fixing plate (203) has a transverse threaded hole, and a set screw (2011) is threadedly connected to the inner wall of the transverse threaded hole.

6. The adjustable spacing differential probe according to claim 1, characterized in that, The bottom of the adjustment seat (201) is provided with a fixing component (300) for fixing the adjustment seat (201). The fixing component (300) includes a placement seat (301) provided at the bottom of the adjustment seat (201). Two symmetrical positioning clamps (302) for clamping and fixing the adjustment seat (201) are slidably provided on the outer surface of the placement seat (301).

7. The adjustable spacing differential probe according to claim 6, characterized in that, The placement seat (301) has a rectangular cavity inside. Both sides of the placement seat (301) have rectangular openings. The inner walls of the two rectangular openings are slidably provided with L-shaped rods (303). The two positioning clamps (302) are respectively fixed to the ends of the two L-shaped rods (303). The inner wall of the rectangular cavity is provided with two symmetrical partitions (304). The surfaces of the two partitions (304) are rotatably provided with bidirectional threaded columns (305) that penetrate the two partitions (304). The ends of the two L-shaped rods (303) are respectively provided with cylindrical threaded grooves (306) that are threaded to the outer surfaces of the two ends of the bidirectional threaded columns (305).

8. The adjustable spacing differential probe according to claim 7, characterized in that, The back of the placement seat (301) is rotatably provided with a rotating rod (307) extending into the rectangular cavity. One end of the rotating rod (307) is fixed with a rotating block (308) for rotating the rotating rod (307), and the other end of the rotating rod (307) is fixed with a driving bevel gear (309). The surface of the bidirectional threaded column (305) is fixed with a driven bevel gear (3010) that meshes with the driving bevel gear (309).

9. The adjustable spacing differential probe according to claim 7, characterized in that, The upper surface of the placement seat (301) is provided with a cleaning component (400) for cleaning dust and debris on the surface of the placement seat (301) before the adjustment seat (201) is installed. The cleaning component (400) includes an L-shaped limiting plate (401) fixed on the back of the placement seat (301) and a strip groove opened on the surface of the L-shaped limiting plate (401). The inner wall of the strip groove is fixed with a pipe (402), and a plurality of high-pressure jet heads (403) inclined toward the upper surface of the placement seat (301) are fixed at equal intervals on the surface of the pipe (402).

10. The adjustable spacing differential probe according to claim 9, characterized in that, Two symmetrical press-type air pumps (404) are fixedly mounted on the surfaces of the two partitions (304), and pressure plates (405) are fixedly mounted on the end surfaces of the two L-shaped rods (303). The surface of the pressure plate (405) is fixedly connected to the pressing end of the press-type air pump (404). The end of the press-type air pump (404) is respectively provided with an air intake pipe (406) and an air inflator (407). The end of the air intake pipe (406) is provided with a filter cover (408). The other end of the air inflator (407) is connected to the pipe (402). The surfaces of the air intake pipe (406) and the air inflator (407) are respectively provided with an air intake one-way valve (409) and an air inflation one-way valve (4010). Two ventilation holes communicating with the rectangular cavity are opened on the back of the placement seat (301), and a filter screen (4011) is fixedly mounted on the inner wall of the two ventilation holes.

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