An SMP connector inspection tool

Abstract

The present invention relates to the technical field of SMP connector inspection tooling, and specifically, to an SMP connector inspection tooling. The tooling includes a base and bracket feet arranged on both sides of the bottom of the base, a placement groove is provided on the surface of the base, and a T-shaped groove is provided on the surface of the base. The present invention pushes the groove plate to move on the surface of the base, and during the movement of the groove plate, the racks arranged on both sides of the sealing plate drive the gear rod to mesh and rotate. When the gear rod rotates, the eccentric wheel arranged on its surface rotates coaxially. During the rotation process, the eccentric wheel squeezes the air pressure rod arranged on one side of the eccentric wheel, and the air pressure rod slides on the inner wall of the column tube, and the air pressure rod is quickly pressed periodically to inflate the air bag in the ventilation pipe connection to make its surface protrude, and the SMP connector placed inside the placement groove is automatically limited. When the base is turned over to detect the cracks at the bottom of the SMP connector, the SMP connector is prevented from shaking and being stuck on the inner wall of the placement groove, thereby improving the inspection efficiency of the cracks of the SMP connector.

Description

Technical Field

[0001] The present invention relates to the technical field of SMP connector inspection tooling, in particular to an SMP connector inspection tooling. Background Art

[0002] The SMP connector is an ultra-small push-in RF coaxial connector with the characteristics of small size, light weight, excellent seismic resistance and wide operating frequency band.

[0003] SMP connectors connect or disconnect coaxial cables, microstrip circuits, and transmit signals in microwave circuits. They are important functional components for achieving electrical connections and signal transmission between modules, components, systems, and subsystems.

[0004] At present, after purchasing SMP connectors, it is generally necessary for inspectors to inspect the purchased SMP connectors one by one. Only after the SMP connectors have passed the inspection can the purchased SMP connectors be stored in the warehouse. When inspecting the SMP connectors, the inspectors generally use tweezers to clamp the SMP connectors and observe the cracks on the ends of the SMP connectors under a microscope to judge the quality of the purchased SMP connectors.

[0005] However, the number of SMP connectors purchased is generally large, and it is time-consuming and laborious for inspectors to pick up the SMP connectors one by one with tweezers and observe them under a microscope. In view of this, we propose an SMP connector inspection tooling. Summary of the invention

[0006] The object of the present invention is to provide an SMP connector inspection tool to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention aims to provide an SMP connector inspection tool, comprising a base and bracket feet arranged on both sides of the bottom of the base, the base surface is provided with a placement groove, the placement groove is stepped and is used to place the SMP connector, the base surface is provided with a T-slot, an automatic limit assembly is provided near the side wall of the base, the base surface is provided with a slot plate, the bottom of the slot plate is provided with a T-block, both sides of the bottom of the T-block are provided with positioning slots, the T-block slides on the inner wall of the T-slot, the slot plate surface is provided with a bending groove corresponding to the placement groove, the bending groove surface is clamped with a ventilation pipe, an inflatable bag is provided at the connection of the ventilation pipe, the inflatable bag is arranged above the placement groove and the number is corresponding, a sealing plate is provided on the top of the inflatable bag, the slot plate and the sealing plate are connected by fixing bolts, and pressure strips are provided on both sides of the sealing plate. When the slot plate is pulled, the rack is driven to move horizontally in the horizontal direction, and the rack drives the automatic limit assembly to inflate the inside of the ventilation pipe, so that the inflatable bag expands to automatically limit the SMP connector placed in the placement groove.

[0008] As a further improvement of the present technical solution, a clamping groove is provided above the placement groove, the opening of the clamping groove is larger than the placement groove, guide grooves are provided on both sides of the clamping groove, the guide grooves are symmetrical, and the clamp clamps the symmetrical quadrant position of the SMP connector by relatively moving along the inner wall of the guide groove.

[0009] As a further improvement of the present technical solution, the automatic limiting assembly includes a gear rod arranged on both sides of the base, the gear rod rotates on the surface of the base, an eccentric wheel is arranged on the surface of the gear rod, a column is arranged on one side of the eccentric wheel, a compressor rod is slidingly arranged on the inner wall of the column, and a three-way pipe is arranged at the air outlet at the end of the column, and a first throttle valve and a second throttle valve are respectively arranged at the air inlet and the air outlet of the three-way pipe, and a telescopic bellows is arranged at the end of the second throttle valve, and the telescopic bellows is connected to the end of the ventilation pipe.

[0010] As a further improvement of the present technical solution, a return spring is provided between the compression end of the air compressor rod and the column tube. The return spring compresses the air inside the column tube when subjected to external pressure. When the external pressure disappears, the air compressor rod is reset by the force of the return spring.

[0011] As a further improvement of the technical solution, a support block is provided under the telescopic bellows, a limiting groove adapted to the telescopic bellows is opened on the surface of the support block, and a limiting hoop is provided on the top of the support block to limit the moving path of the telescopic bellows during the stretching process.

[0012] As a further improvement of the technical solution, support plates are provided on both sides of the base, and the support plates are symmetrical. The support plates surround and shield the automatic limit assembly, and the device is supported by the support plates when inspecting the bottom of the SMP connector.

[0013] As a further improvement of the technical solution, a through groove is opened on the surface of the sealing plate, and a sealing plug is provided at the through groove, and the sealing plug is used to seal the top opening of the ventilation pipe.

[0014] As a further improvement of the technical solution, a fixing component is provided at the bottom of the base, and the automatic limiting component is used to fix and disassemble the slot plate.

[0015] As a further improvement of the present technical solution, the fixing assembly includes a pressure strip arranged at the bottom of the base, and fixing columns are provided at both ends of the pressure strip. The fixing columns pass through the bottom of the base to the inside of the T-slot, and a tension spring is provided between the fixing column and the pressure strip. The end of the fixing column is adapted to the positioning groove provided at the bottom of the slot plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the SMP connector inspection tooling, the slot plate is pushed to move on the surface of the base. During the movement of the slot plate, the racks provided on both sides of the sealing plate drive the gear rod to mesh and rotate. When the gear rod rotates, the eccentric wheel provided on its surface rotates coaxially. During the rotation, the eccentric wheel squeezes the air compressor rod provided on one side of it. The air compressor rod slides on the inner wall of the column tube. The air inside the column tube is squeezed and flows to the inside of the telescopic bellows through the second throttle valve at the end of the three-way pipe. The end of the telescopic bellows is connected with the end of the ventilation pipe. Since a reset spring is provided between the compression end of the air compressor rod and the column tube, during the rotation of the eccentric wheel, the air compressor rod can be quickly pressed periodically to inflate the air bag connected to the ventilation pipe to make its surface convex, and the SMP connector placed in the placement groove is automatically limited. When the base is turned over to detect the cracks at the bottom of the SMP connector, the SMP connector is prevented from shaking and getting stuck on the inner wall of the placement groove, thereby improving the inspection efficiency of the cracks of the SMP connector.

[0018] 2. In the SMP connector inspection tooling, by pushing the slot plate to move toward the side close to the base, the T-block at the bottom of the slot plate slides on the inner wall of the T-slot. When the slot plate moves to the end of the base and the four corners fit together, the fixed column is reset by the force of the tension spring, and at the same time, the positioning slot on the other side of the bottom of the slot plate is clamped and fixed to prevent the slot plate from sliding when the SMP connector inspection tooling is turned over to inspect the bottom, causing the SMP connector placed in the placement slot to fall and be damaged, thereby increasing the service life of the SMP connector.

[0019] 3. In the SMP connector inspection tooling, the top of the vent pipe is in an open state by taking out the sealing plug. Therefore, the gas inside the airbag overflows, and the air in the airbag is deflated and restored to a state flush with the bottom of the slot plate, thereby reducing the resistance when stretching the slot plate, thereby enabling the SMP connector placed in the placement slot to be quickly taken out. By setting up two sets of inspection tooling, the top and bottom cracks of the SMP connector are inspected respectively, which is beneficial to improving the overall inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the sealing plate structure of the present invention;

[0022] Figure 3 It is an exploded view of the slot plate of the present invention;

[0023] Figure 4 It is a schematic diagram of the base structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the automatic limit assembly of the present invention;

[0025] Figure 6For the present invention Figure 5 Schematic diagram of point A;

[0026] Figure 7 It is a cross-sectional view of the overall structure of the present invention;

[0027] Figure 8 It is a schematic diagram of the ventilation pipe structure of the present invention.

[0028] The meaning of each number in the figure is:

[0029] 100, base; 101, placement slot; 102, clamping slot; 103, guide slot; 104, bracket foot; 105, T-slot; 106, support plate;

[0030] 200, groove plate; 201, bending groove; 202, ventilation pipe; 203, inflatable bag;

[0031] 300, sealing plate; 301, rack; 302, sealing plug;

[0032] 400, fixing assembly; 401, pressure strip; 402, fixing column; 403, tension spring;

[0033] 500, automatic limit assembly; 501, gear rod; 502, eccentric wheel; 503, column tube; 504, air compressor rod; 505, three-way pipe; 506, first throttle valve; 507, second throttle valve; 508, telescopic bellows; 509, support block; 510, return spring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] The purpose of this embodiment is to provide a SMP connector inspection tool. Figure 1-Figure 8 As shown, it includes a base 100 and bracket feet 104 arranged on both sides of the bottom of the base 100, a placement groove 101 is opened on the surface of the base 100, the placement groove 101 is stepped and is used to place the SMP connector, a T-shaped groove 105 is opened on the surface of the base 100, an automatic limit assembly 500 is arranged near the side wall of the base 100, a groove plate 200 is arranged on the surface of the base 100, a T-shaped block is arranged at the bottom of the groove plate 200, and positioning grooves are arranged on both sides of the bottom of the T-shaped block. The T-shaped block slides on the inner wall of the T-shaped groove 105, and a bending groove 201 corresponding to the placement groove 101 is opened on the surface of the groove plate 200. The bending groove 201 A ventilation tube 202 is clamped on the surface, and an inflatable bag 203 is provided at the connection of the ventilation tube 202. The inflatable bags 203 are arranged above the placement groove 101 and the number of the inflatable bags 203 is corresponding. A sealing plate 300 is provided on the top of the inflatable bag 203. The groove plate 200 and the sealing plate 300 are connected by fixing bolts. Pressure strips 401 are provided on both sides of the sealing plate 300. When the groove plate 200 is pulled, the rack 301 is driven to move horizontally in the horizontal direction. The rack 301 drives the automatic limiting component 500 to inflate the inside of the ventilation tube 202, so that the inflatable bag 203 expands to automatically limit the SMP connector placed in the placement groove 101.

[0037] During the inspection of the SMP connector, it is found that the SMP connector with quality problems is to be quickly removed from the placement slot 101. Therefore, a clamping slot 102 is provided above the placement slot 101. The opening of the clamping slot 102 is larger than the placement slot 101. Guide slots 103 are provided on both sides of the clamping slot 102. The guide slots 103 are symmetrical. The clamp moves relatively along the inner wall of the guide slot 103 to clamp the symmetrical quadrant position of the SMP connector. When cracks are found during the inspection of the SMP connector, the operator will remove the SMP connector according to the SMP connector. The position information of the P connector is obtained by sliding the slot plate 200 on the surface of the base 100 so that the SMP connector placed in the placement slot 101 is exposed to the outside, and the clip is inserted into the guide slot 103, and the clip is pressed relatively to slide along the inside of the guide slot 103, so that the SMP connector can be quickly clamped at the symmetrical limit position, avoiding position displacement during the clamping process and uneven force on the SMP connector causing it to slip and be damaged during the transfer process, thereby improving the stability of the SMP connector clamping and improving the efficiency of removing SMP connectors with quality problems.

[0038] Considering that when the SMP connector is placed inside the placement groove 101, when the bottom of the SMP connector is detected for cracks, since the height of the top of the SMP connector is less than the height of the clamping groove 102, the SMP connector is easily dropped and shaken from the inner wall of the placement groove 101 due to the effect of gravity during the flipping process, resulting in the position of the SMP connector clamped on the inner wall of the placement groove 101 being skewed, making it inconvenient for the operator to detect the cracks through a microscope. Therefore, the automatic limit assembly 500 includes a gear rod 501 arranged on both sides of the base 100, the gear rod 501 rotates on the surface of the base 100, an eccentric wheel 502 is arranged on the surface of the gear rod 501, a column 503 is arranged on one side of the eccentric wheel 502, and a sliding inner wall of the column 503 is provided. A three-way pipe 505 is provided at the air outlet of the end of the column 503 of the air compressor rod 504. The air inlet and the air outlet of the three-way pipe 505 are respectively provided with a first throttle valve 506 and a second throttle valve 507. A telescopic bellows 508 is provided at the end of the second throttle valve 507. The telescopic bellows 508 is connected to the end of the ventilation pipe 202. A return spring 510 is provided between the compression end of the air compressor rod 504 and the column 503. The return spring 510 compresses the air inside the column 503 under external pressure. When the external pressure disappears, the air compressor rod 504 is reset by the force of the return spring 510. When the SMP connector is placed inside the placement slot 101, the slot plate 200 is pushed to move on the surface of the base 100. When the slot plate 200 moves During the process, the racks 301 provided on both sides of the sealing plate 300 drive the gear rod 501 to mesh and rotate. When the gear rod 501 rotates, the eccentric wheel 502 provided on its surface rotates coaxially. During the rotation process, the eccentric wheel 502 squeezes the air compressor rod 504 provided on one side thereof. The air compressor rod 504 slides on the inner wall of the column 503. The air inside the column 503 is squeezed and flows into the telescopic bellows 508 through the second throttle valve 507 at the end of the three-way pipe 505. The end of the telescopic bellows 508 is connected to the end of the ventilation pipe 202. Since a return spring 510 is provided between the compression end of the air compressor rod 504 and the column 503, during the rotation process of the eccentric wheel 502, the air compressor rod 504 can be quickly pressed periodically. The inflatable bag 203 connected to the ventilation pipe 202 is inflated, and the inflatable bag 203 corresponds to the placement groove 101 set on the surface of the base 100 one by one. The diameter of the inflatable bag 203 is between the placement groove 101 and the clamping groove 102. Therefore, by pushing the slot plate 200 to move on the surface of the base 100, the inflatable bag 203 is continuously inflated. When the surface of the slot plate 200 is completely in contact with the base 100, the surface of the inflatable bag 203 protrudes, and the SMP connector placed inside the placement groove 101 is automatically limited. When the base 100 is flipped over to detect cracks at the bottom of the SMP connector, the SMP connector is prevented from shaking and getting stuck on the inner wall of the placement groove 101, thereby improving the efficiency of inspecting cracks in the SMP connector.

[0039] Considering that the slot plate 200 pulls the telescopic bellows 508 fixed to the end of the vent pipe 202 during movement, in order to prevent the telescopic bellows 508 from being displaced during the pulling process, resulting in a messy surface of the device and affecting subsequent detection, a support block 509 is provided below the telescopic bellows 508, and a limiting groove adapted to the telescopic bellows 508 is opened on the surface of the support block 509. A limiting hoop is provided on the top of the support block 509. The telescopic bellows 508 limits its moving path during the stretching process. When the SMP placed inside the placement slot 101 When the connector inspection is completed, the SMP connector placed inside the placement slot 101 is exposed to the outside by sliding the slot plate 200, so that the staff can collect standard information from it. During the movement of the slot plate 200, the telescopic bellows 508 connected to the end of the ventilation pipe 202 is moved by the tension, and the telescopic bellows 508 in tension is limited by the limiting hoop arranged above the support block 509 to prevent its position from shifting during the stretching movement, resulting in stacking on the surface of the base 100 and affecting the neatness of the device table, thereby improving the continuous inspection efficiency of the SMP connector.

[0040] During the inspection of the SMP connector, since the automatic limit assembly 500 is exposed to the outside, when the gear rod 501 drives the eccentric wheel 502 to rotate, it is easy to hit the operator's hand, causing a safety hazard. Therefore, support plates 106 are provided on both sides of the base 100, and the support plates 106 are symmetrical. The support plates 106 surround and shield the automatic limit assembly 500. When inspecting the bottom of the SMP connector, the device is supported by the support plates 106. By arranging the support plates 106 outside the sealing plate 300, when the gear rod 501 drives the eccentric wheel 502 to rotate, the operator will not come into contact with it, thereby improving safety. After the slot plate 200 and the base 100 are fitted and sealed, the base 100 is rotated to its back to detect cracks at the bottom of the SMP connector. When the rotation is completed, the device as a whole is supported by the support plates 106, thereby improving convenience.

[0041] When the inspection of the SMP connector placed in the placement slot 101 is completed, in order to facilitate pulling the slot plate 200 away from the surface of the base 100, a through slot is opened on the surface of the sealing plate 300, and a sealing plug 302 is provided at the through slot. The sealing plug 302 is used to seal the top opening of the vent tube 202. By removing the sealing plug 302, the top of the vent tube 202 is in an open state. Therefore, the gas inside the inflatable bag 203 overflows, and the deflated air bag 203 is restored to a state flush with the bottom of the slot plate 200, and the resistance is reduced when the slot plate 200 is stretched, so that the SMP connector placed in the placement slot 101 can be quickly taken out.

[0042] In order to quickly place and take out the SMP connector, a fixing component 400 is provided at the bottom of the base 100. The automatic limit component 500 is used to fix and remove the slot plate 200. The fixing component 400 includes a pressure strip 401 provided at the bottom of the base 100. The pressure strip 401 has fixing columns 402 at both ends. The fixing columns 402 pass through the bottom of the base 100 to the inside of the T-slot 105. A tension spring 403 is provided between the fixing column 402 and the pressure strip 401. The end of the fixing column 402 is matched with the positioning groove provided at the bottom of the slot plate 200. When the SMP connector is placed, the pressure strip 401 is pressed to make it The fixing column 402 provided at the end of the pressure strip 401 is away from the positioning groove at the bottom of the slot plate 200. By pushing the slot plate 200 to move toward the side close to the base 100, the T-block at the bottom of the slot plate 200 slides on the inner wall of the T-slot 105. When the slot plate 200 moves to the end of the base 100 and the four corners are fitted together, the fixing column 402 is reset by the force of the tension spring 403, and at the same time, the positioning groove on the other side of the bottom of the slot plate 200 is clamped and fixed, so as to avoid the slot plate 200 from sliding when the SMP connector inspection tool is turned over to check the bottom, causing the SMP connector placed in the placement groove 101 to fall and be damaged, thereby improving the service life of the SMP connector.

[0043] In summary, the working principle of the present invention is as follows: by placing the SMP connector inside the placement slot 101, and by pushing the slot plate 200 to move on the surface of the base 100, during the movement of the slot plate 200, the racks 301 provided on both sides of the sealing plate 300 drive the gear rod 501 to engage and rotate, and when the gear rod 501 rotates, the eccentric wheel 502 provided on its surface rotates coaxially, and the eccentric wheel 502 squeezes the air compressor rod 504 provided on one side during the rotation, and the air compressor rod 504 slides on the inner wall of the column 503, and the air inside the column 503 is squeezed through the second throttle valve 507 at the end of the three-way pipe 505 to flow into the telescopic bellows 508, and the end of the telescopic bellows 508 is connected with the end of the ventilation pipe 202. Since a return spring 510 is provided between the compression end of the air compressor rod 504 and the column 503, During the rotation of the eccentric wheel 502, the air pressure rod 504 can be quickly pressed periodically to inflate the airbag 203 connected to the ventilation pipe 202. The airbag 203 corresponds to the placement groove 101 set on the surface of the base 100 one by one. The diameter of the airbag 203 is between the placement groove 101 and the clamping groove 102. Therefore, by pushing the slot plate 200 to move on the surface of the base 100, the airbag 203 is continuously inflated. When the surface of the slot plate 200 is completely attached to the base 100, the surface of the airbag 203 protrudes, and the SMP connector placed inside the placement groove 101 is automatically limited. When the base 100 is turned over to detect the cracks at the bottom of the SMP connector, it is avoided that the SMP connector shakes and is stuck on the inner wall of the placement groove 101, thereby improving the inspection efficiency of the cracks of the SMP connector;

[0044] When the slot plate 200 is pushed to move toward the side close to the base 100, the T-block at the bottom of the slot plate 200 slides on the inner wall of the T-slot 105. When the slot plate 200 moves to the end of the base 100 and the four corners are fitted, the fixing column 402 is reset by the force of the tension spring 403, and the positioning groove on the other side of the bottom of the slot plate 200 is clamped and fixed, so as to avoid the slot plate 200 sliding when the SMP connector inspection tool is turned over to check the bottom, causing the SMP connector placed in the placement groove 101 to fall and be damaged, thereby improving the service life of the SMP connector;

[0045] When the SMP connector needs to be removed, the sealing plug 302 is removed and the top of the vent tube 202 is in an open state. Therefore, the gas inside the airbag 203 overflows, and the air inside the airbag 203 is deflated and restored to a state flush with the bottom of the slot plate 200, and the resistance is reduced when the slot plate 200 is stretched, so that the SMP connector placed in the placement slot 101 can be quickly taken out; by setting up two sets of inspection tooling, the cracks on the top and bottom of the SMP connector are inspected respectively, which is beneficial to improving the overall inspection efficiency.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An SMP connector inspection tool, characterized in that: The invention comprises a base (100) and bracket feet (104) arranged on both sides of the bottom of the base (100); a placement groove (101) is provided on the surface of the base (100); the placement groove (101) is stepped and used to place an SMP connector; a T-shaped groove (105) is provided on the surface of the base (100); an automatic limit assembly (500) is provided near the side wall of the base (100); a groove plate (200) is provided on the surface of the base (100); a T-shaped block is provided at the bottom of the groove plate (200); positioning grooves are provided on both sides of the bottom of the T-shaped block; the T-shaped block slides on the inner wall of the T-shaped groove (105); the surface of the groove plate (200) A bending groove (201) corresponding to the placement groove (101) is provided, a ventilation tube (202) is clamped on the surface of the bending groove (201), an inflatable bag (203) is provided at the connection of the ventilation tube (202), the inflatable bags (203) are arranged above the placement groove (101) and the number of the inflatable bags (203) is corresponding, a sealing plate (300) is provided on the top of the inflatable bags (203), the groove plate (200) and the sealing plate (300) are connected by fixing bolts, and pressure strips (401) are provided on both sides of the sealing plate (300), and when the groove plate (200) is pulled, the rack (301) is driven to move horizontally in the horizontal direction, and the rack (301) is provided with The automatic limit assembly (500) inflates the inside of the vent pipe (202) so that the inflatable bag (203) expands to automatically limit the SMP connector placed in the placement groove (101). The automatic limit assembly (500) includes a gear rod (501) arranged on both sides of the base (100). The gear rod (501) rotates on the surface of the base (100). An eccentric wheel (502) is arranged on the surface of the gear rod (501). A column (503) is arranged on one side of the eccentric wheel (502). A gas pressure rod (504) is slidably arranged on the inner wall of the column (503). The gas outlet at the end of the column (503) A three-way pipe (505) is provided at the air inlet and the air outlet of the three-way pipe (505) are respectively provided with a first throttle valve (506) and a second throttle valve (507); a telescopic bellows (508) is provided at the end of the second throttle valve (507); the telescopic bellows (508) is connected to the end of the ventilation pipe (202); a return spring (510) is provided between the compression end of the air compressor rod (504) and the column tube (503); the return spring (510) compresses the air inside the column tube (503) under external pressure; when the external pressure disappears, the air compressor rod (504) is reset by the force of the return spring (510).

2. The SMP connector inspection tool according to claim 1, characterized in that: A clamping groove (102) is provided above the placement groove (101); the opening of the clamping groove (102) is larger than the placement groove (101); guide grooves (103) are provided on both sides of the clamping groove (102); the guide grooves (103) are symmetrical, and the clamp clamps the symmetrical quadrant position of the SMP connector by relatively moving along the inner wall of the guide groove (103).

3. The SMP connector inspection tool according to claim 2, characterized in that: A support block (509) is provided below the telescopic bellows (508); a limiting groove adapted to the telescopic bellows (508) is provided on the surface of the support block (509); a limiting hoop is provided on the top of the support block (509); the telescopic bellows (508) limits its moving path during the stretching process.

4. The SMP connector inspection tool according to claim 1, characterized in that: Support plates (106) are provided on both sides of the base (100); the support plates (106) are symmetrical, and the support plates (106) surround and shield the automatic limit assembly (500); when the bottom of the SMP connector is inspected, the device is supported by the support plates (106).

5. The SMP connector inspection tool according to claim 1, characterized in that: A through groove is provided on the surface of the sealing plate (300), and a sealing plug (302) is provided at the through groove. The sealing plug (302) is used to seal the top opening of the ventilation pipe (202).

6. The SMP connector inspection tool according to claim 4, characterized in that: A fixing assembly (400) is provided at the bottom of the base (100), and the automatic limit assembly (500) is used to fix and disassemble the slot plate (200).

7. The SMP connector inspection tool according to claim 6, characterized in that: The fixing assembly (400) comprises a pressure strip (401) arranged at the bottom of the base (100), and fixing columns (402) are arranged at both ends of the pressure strip (401). The fixing columns (402) penetrate the bottom of the base (100) to the inside of the T-shaped slot (105), and a tension spring (403) is arranged between the fixing column (402) and the pressure strip (401). The end of the fixing column (402) is adapted to the positioning slot provided at the bottom of the slot plate (200).

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