Venting detection device for an ultrahigh pressure fuel rail

Abstract

The application discloses a kind of ventilation detection devices of superhigh pressure fuel distribution pipe, it is related to water immersion leak detection technical field;Including detection water storage, two gas supply connectors are installed on the detection water storage;Right side The closed element is fixedly installed on the gas supply connector;Two automatic cut-off components are installed on the detection water storage;Two The automatic cut-off component is used to cut off the clamping end of fuel distribution pipe;Left side The air inlet control component is fixedly installed on the gas supply connector;Anti-winding component is installed in the detection water storage;Automatic cut-off component can be realized automatically to the clamping section of both ends of fuel distribution pipe after leak detection is cut off, staff can be realized cutting during normal operation ventilation leak detection process, avoid artificial forget to cut off;To solve the problem that current superhigh pressure fuel distribution pipe ventilation detection device is not convenient to cut off clamping section after completing ventilation detection.

Description

Technical Field

[0001] This invention relates to the field of water immersion leak detection technology, specifically to a venting detection device for an ultra-high pressure fuel distribution pipe. Background Technology

[0002] Ultra-high pressure fuel distribution pipes are rubber composite pipes with built-in braided reinforcement layers, capable of withstanding high-frequency pressure impacts and alternating loads in high-pressure fuel systems. They possess flexibility, bendability, vibration resistance, and fuel corrosion resistance, making them a core component for high-pressure fuel delivery and distribution. During fuel distribution pipe manufacturing, leak testing is required in sections, typically using a venting and water immersion method for a direct assessment of the pipe's sealing performance. This method is relatively inexpensive. However, existing ultra-high pressure fuel distribution pipe venting testing devices use direct immersion for longer sections. Due to internal cavities, the pipes are difficult to fully submerge, and haphazard stacking can lead to bending, folding, or even collapse, causing localized blockages. This affects the accuracy of venting tests and reduces the lifespan of the fuel distribution pipe, making spiral anti-bending guidance difficult. Furthermore, traditional venting tests require clamping at both ends, which can cause irreversible clamping damage, and the sealing performance of the clamped area cannot be tested. It also hinders the automatic removal of clamped sections after venting tests, increasing the defect rate of fuel distribution pipes after subsequent connector installation.

[0003] To address this, we propose a ventilation detection device for ultra-high pressure fuel distribution pipes. Summary of the Invention

[0004] The purpose of this invention is to provide a ventilation detection device for an ultra-high pressure fuel distribution pipe, so as to solve the problem mentioned in the background art that the current ultra-high pressure fuel distribution pipe ventilation detection devices are not convenient to automatically cut off the clamping section after completing the ventilation detection.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a venting detection device for an ultra-high pressure fuel distribution pipe, comprising a detection water storage component, wherein two air supply connectors are installed on the detection water storage component, the two air supply connectors being used to seal and clamp both ends of the fuel distribution pipe; a sealing component is fixedly installed on the right air supply connector; two automatic cut-off components are installed on the detection water storage component; the two automatic cut-off components are used to cut off the clamping ends of the fuel distribution pipe; an air intake control component is fixedly installed on the left air supply connector; an anti-bending and entanglement component is installed inside the detection water storage component; the detection water storage component includes: a detection water tank and a submersible switch, the submersible switch being fixedly installed on the detection water tank; the detection water tank is filled with water; transparent glass is embedded on the front and rear sides of the detection water tank respectively.

[0006] Preferably, the detection water storage component includes: a drive cylinder, a rotating shaft, and a drive arm. The drive cylinder is rotatably mounted on the detection water tank via a bearing seat. The rotating shaft is rotatably mounted on the detection water tank, and the drive arm is fixedly mounted on the rotating shaft. The output shaft of the drive cylinder is rotatably mounted on the drive arm via a bearing seat. The drive cylinder is used to drive the rotating shaft to rotate.

[0007] Preferably, the gas supply connector includes: a rocker arm, a threaded sleeve, a sleeve, a connecting threaded sleeve, and anti-slip rings. The rocker arm is rotatably mounted on the rotating shaft; the threaded sleeve is fixedly sleeved on the rocker arm; the threaded sleeve has threads on its outer side; the sleeve is fixedly sleeved on the threaded sleeve; the outer front end of the sleeve has a beveled structure; the connecting threaded sleeve is threadedly connected to the threaded sleeve; the connecting threaded sleeve is located on the outer side of the sleeve; the inner side of the connecting threaded sleeve has a beveled structure; two anti-slip rings are provided on the beveled inner side of the connecting threaded sleeve, and the two anti-slip rings have a ratchet-shaped cross-section; the sleeve is used to connect a fuel distribution pipe.

[0008] Preferably, the sealing component includes: a sealing tube and a sealing solenoid valve, wherein the sealing tube is fixedly installed on the sleeve on the right side; the sealing solenoid valve is fixedly installed on the sealing tube; the sealing solenoid valve is electrically connected to a submersible switch; and a flexible hose is connected to the end of the sealing tube.

[0009] Preferably, the automatic cutting component includes: a cutting mounting base, a torsion spring shaft, a knife holder, and a torsion spring. The cutting mounting base is fixedly installed inside the detection water tank. The torsion spring shaft is rotatably mounted on the cutting mounting base, and the knife holder is fixedly mounted on the torsion spring shaft. The knife holder is located inside the cutting mounting base. A torsion spring is sleeved on the torsion spring shaft. One end of the torsion spring is fixedly connected to the torsion spring shaft, and the other end of the torsion spring is fixedly connected to the cutting mounting base.

[0010] Preferably, the automatic cutting component further includes: a cutter, which is fixedly mounted on the cutter holder and has an arc-shaped cutting edge at its bottom; the cutter is located on one side of the end of the sleeve; the top of the cutter has a beveled structure; the cutter is used to cut off the clamping section of the fuel distribution pipe.

[0011] Preferably, the automatic cutting component further includes a stop bar, and the stop bar is fixedly installed at the end of the cutter.

[0012] Preferably, the air intake control component includes: an air intake pipe and an air intake solenoid valve, wherein the air intake pipe is fixedly installed on the sleeve on the left side; a piston-type air pump is externally connected to the air intake pipe; and an air intake solenoid valve is fixedly installed on the air intake pipe.

[0013] Preferably, the anti-wrinkle and anti-winding component includes: a winding cylinder, positioning switches, and clamping rods. The winding cylinder is fixedly installed inside the detection pool. A spiral groove is formed on the winding cylinder. A row of positioning switches is fixedly sleeved in the spiral groove on the winding cylinder, and the pressing ends of the row of positioning switches protrude from the spiral groove on the winding cylinder. The row of positioning switches is equidistantly distributed. A clamping rod is rotatably installed inside the detection pool, and the clamping rod has an L-shaped structure. A row of grooves is provided on the inner side of the clamping rod, and the row of grooves on the clamping rod is respectively aligned with the spiral groove on the winding cylinder. The row of positioning switches is electrically connected to an air intake solenoid valve.

[0014] Preferably, the anti-folding and winding component further includes: a positioning shaft and a positioning tension spring, wherein the positioning shaft is slidably inserted into the clamping rod; the end of the positioning shaft is inserted into the inner side of the winding cylinder; a positioning tension spring is sleeved on the positioning shaft; one end of the positioning tension spring is fixedly connected to the positioning shaft, and the other end of the positioning tension spring is fixedly connected to the clamping rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention employs an air supply connector to stably clamp and fix the end of the fuel distribution pipe, ensuring the connection seal during subsequent air venting tests. The adjustable air supply connector facilitates switching between immersion tests and lifting the fuel distribution pipe end after testing, preventing excessive water ingress into the fuel distribution pipe before testing. This avoids localized leaks where air venting fails to generate timely bubbles to drain the intruded water, leading to missed detections. Furthermore, the use of a submersible switch allows for the control of a solenoid valve to close the air supply connector after immersion in water. Automatic pressure release is also achieved after the air venting leak test, preventing the piston-type air pump from forgetting to release pressure after holding it, thus enhancing safety.

[0016] The automatic cutting device can automatically cut off the clamped sections at both ends of the fuel distribution pipe after leak detection. The cutting work can be carried out during the normal operation of the staff for venting and leak detection, avoiding the manual omission of cutting. At the same time, the cutting amount is standardized, which can prevent the clamped sections from being squeezed by the connecting threaded sleeve and continue to be used, reducing the defect rate of the fuel distribution pipe after subsequent installation of the joint. The clamped section pipe is squeezed and deformed, the inner wall is indented, and the sealing surface collapses. These plastic deformations can easily lead to micro-gap oil leakage later.

[0017] Using anti-bending winding components can improve the standardization of operation for workers when immersing fuel distribution pipes for leak testing. It can restrict workers from accurately spirally winding the fuel distribution pipe, avoiding the situation where the fuel distribution pipe is simply piled up haphazardly during traditional leak testing. This prevents the fuel distribution pipe from being squeezed and bent, causing local blockages and making it difficult for air pressure to conduct through the entire fuel distribution pipe. At the same time, local bending damage will also directly affect the service life of the fuel distribution pipe. Using clamping rods to limit and hold the fuel distribution pipe ensures that it is submerged in water and will not float, ensuring that air bubbles generated at the leak point can be observed in time. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a venting detection device for an ultra-high pressure fuel distribution pipe according to the present invention. Figure 2 This is a cross-sectional view of the internal structure of a venting detection device for an ultra-high pressure fuel distribution pipe according to the present invention. Figure 3 For the present invention Figure 2 Enlarged view of the structure of region A in the middle; Figure 4 This is a cross-sectional view of the gas supply connector structure of the present invention; Figure 5 This is a cross-sectional view of the sleeve structure of the present invention; Figure 6 For the present invention Figure 2 Enlarged view of the structure of region E in the middle; Figure 7 This is a cross-sectional view of the mounting position of the position switch of the present invention; Figure 8 This is a schematic diagram of the automatic cutting component structure of the present invention; Figure 9 This is a schematic diagram of the anti-folding and wrapping component structure of the present invention.

[0019] In the diagram: 1. Detection water storage component; 101. Detection water tank; 1011. Submersible switch; 102. Drive cylinder; 103. Rotating shaft; 104. Drive arm; 2. Air supply connector; 201. Swing arm; 2011. Threaded sleeve; 202. Sleeve; 203. Connecting threaded sleeve; 2031. Anti-slip ring; 3. Sealing component; 301. Sealing pipe; 302. Sealing solenoid valve; 4. Automatic cutting component; 401. Cutting mounting base; 402. Torsion spring shaft; 4021. Knife holder; 403. Torsion spring; 404. Cutting knife; 4041. Stop bar; 5. Air intake control component; 501. Air intake pipe; 502. Air intake solenoid valve; 6. Anti-bending and winding component; 601. Winding cylinder; 6011. Positioning switch; 602. Clamping rod; 603. Positioning shaft; 604. Positioning tension spring. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figures 1 to 9 As shown: This invention provides a technical solution: a venting detection device for an ultra-high pressure fuel distribution pipe, comprising a detection water storage component 1, two air supply connectors 2 installed on the detection water storage component 1, the two air supply connectors 2 being used to seal and clamp both ends of the fuel distribution pipe; a sealing component 3 is fixedly installed on the right air supply connector 2; two automatic cut-off components 4 are installed on the detection water storage component 1; the two automatic cut-off components 4 are used to cut off the clamping end of the fuel distribution pipe; an air intake control component 5 is fixedly installed on the left air supply connector 2; an anti-bending and entanglement component 6 is installed inside the detection water storage component 1; the detection water storage component 1 includes: a detection water tank 101 and a submersible switch 1011, the submersible switch 1011 is fixedly installed on the detection water tank 101; the detection water tank 101 is filled with water; transparent glass is embedded on the front and rear sides of the detection water tank 101 respectively.

[0022] The detection water storage component 1 includes: a drive cylinder 102, a rotating shaft 103, and a drive arm 104. The drive cylinder 102 is rotatably mounted on the detection water tank 101 via a bearing seat; the rotating shaft 103 is rotatably mounted on the detection water tank 101, and the drive arm 104 is fixedly mounted on the rotating shaft 103; the output shaft of the drive cylinder 102 is rotatably mounted on the drive arm 104 via a bearing seat; the drive cylinder 102 is used to drive the rotating shaft 103 to rotate. The air supply connector 2 includes: a swing arm 201, a threaded sleeve 2011, a sleeve 202, a connecting threaded sleeve 203, and an anti-slip ring 2031. The swing arm 201 is rotatably mounted on the rotating shaft 103; a fixed sleeve is mounted on the swing arm 201. A threaded sleeve 2011 is attached; the outer side of the threaded sleeve 2011 is threaded; a sleeve 202 is fixedly fitted onto the threaded sleeve 2011; the outer front end of the sleeve 202 has a beveled structure; a connecting threaded sleeve 203 is threaded onto the threaded sleeve 2011; the connecting threaded sleeve 203 is located outside the sleeve 202; the inner side of the connecting threaded sleeve 203 has a beveled structure; two anti-slip rings 2031 are provided on the beveled inner side of the connecting threaded sleeve 203, and the two anti-slip rings 2031 have a ratchet-shaped cross-section; a fuel distribution pipe is fitted onto the sleeve 202; the sealing element 3 includes: a sealing tube 301 and a sealing solenoid valve 302, the sealing tube 301 being fixedly installed on the right side. A sealing solenoid valve 302 is fixedly installed on the sleeve 202 and the sealing pipe 301; the sealing solenoid valve 302 is electrically connected to the submersible switch 1011; a hose is connected to the end of the sealing pipe 301 and leads out to the test water tank 101; the air intake control component 5 includes: an air intake pipe 501 and an air intake solenoid valve 502, the air intake pipe 501 is fixedly installed on the sleeve 202 on the left side; a piston-type air pump is connected to the air intake pipe 501; the air intake solenoid valve 502 is fixedly installed on the air intake pipe 501; the air supply connector 2 can stably clamp and fix the end of the fuel distribution pipe to ensure the connection seal during subsequent air passage testing, and this structure utilizes the adjustable air supply connector 2. It facilitates switching between immersion tests and lifting the fuel distribution pipe end after testing, preventing the fuel distribution pipe from being submerged in a large amount of water before testing. This avoids the inability to generate bubbles in time when venting to remove the infiltrated water, which could lead to missed detections. At the same time, the use of a submersible switch 1011 can control the solenoid valve 302 to close after the air supply connection 2 is submerged in water. Furthermore, it can automatically depressurize after the venting and leak testing is completed, preventing the piston-type air pump from forgetting to depressurize after holding pressure. This ensures safety when cutting off the clamping end of the fuel distribution pipe later. The structure and control are simple, and the staff only need to pay attention to the venting and leak situation to avoid forgetting to depressurize and directly disassembling the fuel distribution pipe.

[0023] The automatic cutting component 4 includes: a cutting mounting base 401, a torsion spring shaft 402, a knife holder 4021, and a torsion spring 403. The cutting mounting base 401 is fixedly installed inside the detection water tank 101. The torsion spring shaft 402 is rotatably mounted on the cutting mounting base 401, and the knife holder 4021 is fixedly mounted on the torsion spring shaft 402. The knife holder 4021 is located inside the cutting mounting base 401. The torsion spring 403 is sleeved on the torsion spring shaft 402. One end of the torsion spring 403 is fixedly connected to... On the torsion spring shaft 402, the other end of the torsion spring 403 is fixedly connected to the cutting mounting base 401; the automatic cutting component 4 also includes: a cutter 404, which is fixedly mounted on the cutter holder 4021, and the bottom of the cutter 404 is provided with an arc-shaped cutting edge; the cutter 404 is located on one side of the end of the sleeve 202; the top of the cutter 404 has a beveled structure; the cutter 404 is used to cut off the clamping section of the fuel distribution pipe; the automatic cutting component 4 also includes: a stop bar 4041, and the cutter 404 A stop strip 4041 is fixedly installed at the end of the 04 section. The outer side of the stop strip 4041 is smooth, so it will not cause damage when the fuel distribution pipe slides over it. The automatic cutting component 4 can automatically cut off the clamped sections at both ends of the fuel distribution pipe after leak testing. The cutting work can be carried out during the normal operation of the staff for venting and leak testing, avoiding the manual omission of cutting. At the same time, the cutting amount is standardized and uniform, which can prevent the clamped section from continuing to be used after being squeezed by the connecting threaded sleeve 203. The clamped section pipe is squeezed and deformed, the inner wall is indented, and the sealing surface collapses. This kind of plastic deformation is very likely to cause micro-gap oil leakage later. Directly cutting off the damaged clamped section avoids the risk of assembly seal failure from the root. At the same time, the fuel distribution pipe in the area squeezed by the connecting threaded sleeve 203 is not involved in the venting and leak testing work, and it is difficult to guarantee its leakage. This structure is simple to control. By using the stop strip 4041 to limit the fuel distribution pipe and cooperating with the cutter 404, the cutting work can be completed quickly.

[0024] In Example 2, based on Example 1, the anti-wrinkling and winding component 6 includes: a winding cylinder 601, positioning switches 6011, and a clamping rod 602. The winding cylinder 601 is fixedly installed inside the detection water tank 101. A spiral groove is formed on the winding cylinder 601. A row of positioning switches 6011 is fixedly sleeved within the spiral groove on the winding cylinder 601, and the pressing ends of the row of positioning switches 6011 protrude from the spiral groove on the winding cylinder 601. The row of positioning switches 6011 are equidistantly distributed. The detection water tank 101... A clamping rod 602 is rotatably mounted inside the winding cylinder 601, and the clamping rod 602 has an L-shaped structure; a row of grooves is provided on the inner side of the clamping rod 602, and the row of grooves of the clamping rod 602 are respectively aligned with the spiral grooves on the winding cylinder 601; a row of position switches 6011 are electrically connected to the air intake solenoid valve 502; the anti-bending winding component 6 also includes: a positioning shaft 603 and a positioning tension spring 604, the positioning shaft 603 is slidably inserted into the clamping rod 602; the end of the positioning shaft 603 is inserted into the inner side of the winding cylinder 601; a sleeve is fitted on the positioning shaft 603. A positioning tension spring 604 is provided; one end of the positioning tension spring 604 is fixedly connected to the positioning shaft 603, and the other end of the positioning tension spring 604 is fixedly connected to the clamping rod 602. The use of the anti-bending winding component 6 can improve the standardization of operation when the operator is immersing the fuel distribution pipe for leak testing. It can restrict the operator to accurately spirally wind the fuel distribution pipe, avoiding the fuel distribution pipe being directly and randomly piled up during traditional leak testing. The fuel distribution pipe is prone to compression and bending, causing local blockage and making it difficult for air pressure to conduct through the entire fuel distribution pipe. At the same time, local bending damage will also directly affect the service life of the fuel distribution pipe. By using the clamping rod 602 to limit and clamp the fuel distribution pipe, it can be ensured that the fuel distribution pipe is submerged in water and will not float. It can be ensured that the bubbles generated at the leak point can be observed in time. The spiral winding method is standardized and regulated. At the same time, if a leak occurs in the fuel distribution pipe, the bubbles can be released more concentratedly at the winding cylinder 601, which is easier for the operator to observe. It is more suitable for leak testing of longer fuel distribution pipes.

[0025] The working principle of this embodiment is as follows: First, the fuel distribution pipe is spirally wound into the spiral groove on the winding cylinder 601. After the fuel distribution pipe is spirally wound normally, the clamping rod 602 can be rotated to clamp the wound fuel distribution pipe. Then, the positioning shaft 603 is inserted into the winding cylinder 601 for limiting. At this time, all the position switches 6011 are pressed by the fuel distribution pipe. Only then can the intake solenoid valve 502 be energized and opened. This does not affect the air supply of the piston-type air pump connected to the intake pipe 501, ensuring that the fuel distribution pipe can be wound in a standardized manner and preventing local bending. After passing both ends of the fuel distribution pipe through the two connecting threaded sleeves 203, manually insert them into the beveled surfaces of the two sleeves 202. Then, screw the connecting threaded sleeves 203 into the threaded sleeves 2011. Using the beveled structure at the ends of the sleeves 202 and the anti-slip rings 2031 pressing against the outside of the fuel distribution pipe, a tight seal is achieved, ensuring the sealing of both ends of the fuel distribution pipe during subsequent testing. Controlling the retraction of the output shaft of the drive cylinder 102 retracts the drive arm 104, causing the swing arm 201 to rotate downwards, thereby immersing both ends of the fuel distribution pipe in the water in the testing pool 101. At this time, the swing arm 201 also presses down the submersible switch 1011, which then controls the sealing. When the solenoid valve 302 is closed, the piston-type air pump connected to the intake pipe 501 can be started normally to supply air pressure and maintain pressure in real time. The staff can observe whether there are air bubbles caused by leakage in the submerged fuel distribution pipe. When the swing arm 201 moves the fuel distribution pipe downward, the fuel distribution pipe will squeeze the top of the cutter 404. The top of the cutter 404 has a sloping structure. After being pressed, the cutter 404 and the cutter holder 4021 will rotate and retract. At this time, the torsion spring 403 is engaged. As the fuel distribution pipe continues to move downward and passes the bottom of the stop bar 4041, the cutter holder 4021 will automatically rotate and reset under the drive of the torsion spring 403. At this time, the cutter 404 is above the clamping end of the fuel distribution pipe. After the air leak test is completed, the drive cylinder 102 can be controlled to drive the swing arm 201 to rotate upward. The submersible switch 1011 will no longer be pressed, which will control the solenoid valve 302 to open and automatically release pressure. Then, the fuel distribution pipe on the sleeve 202 will continue to move upward. When the fuel distribution pipe moves upward to the bottom edge of the cutter 404, it will be limited on the outside of the fuel distribution pipe by the stop strip 4041. The drive cylinder 102 will drive the sleeve 202 to continue to move upward. At this time, the clamping sections at both ends of the fuel distribution pipe will be directly cut off by the cutter 404. After the clamping sections at both ends of the fuel distribution pipe are cut off, the staff can proceed with subsequent segment cutting and other work on the fuel distribution pipe. When performing the next venting and leak testing of the fuel distribution pipe, the connecting threaded sleeve 203 can be rotated and disassembled. The remaining clamping sections of the fuel distribution pipe on the sleeve 202 can be removed with the help of pliers or other tools, and then the next venting and leak testing of the fuel distribution pipe can be carried out.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A venting detection device for an ultra-high pressure fuel distribution pipe, comprising a detection water storage component (1), wherein two air supply connectors (2) are installed on the detection water storage component (1), characterized in that: The two gas supply connectors (2) are used to seal and clamp both ends of the fuel distribution pipe; a sealing member (3) is fixedly installed on the gas supply connector (2) on the right side; two automatic cut-off members (4) are installed on the detection water storage member (1); the two automatic cut-off members (4) are used to cut off the clamping end of the fuel distribution pipe; An air intake control component (5) is fixedly installed on the air supply connector (2) on the left side; The detection water storage component (1) is equipped with an anti-bending and anti-winding component (6); the detection water storage component (1) includes: a detection water tank (101), on which a submersible switch (1011) is fixedly installed; the anti-bending and anti-winding component (6) includes: a winding cylinder (601), which is fixedly installed inside the detection water tank (101); a spiral groove is provided on the winding cylinder (601); The detection water storage device (1) includes: a drive cylinder (102), which is rotatably mounted on the detection water tank (101) via a bearing seat; a rotating shaft (103) is rotatably mounted on the detection water tank (101), and a drive arm (104) is fixedly mounted on the rotating shaft (103); the output shaft of the drive cylinder (102) is rotatably mounted on the drive arm (104) via a bearing seat; the drive cylinder (102) is used to drive the rotating shaft (103) to rotate; The gas supply connector (2) includes: a sleeve (202) and a connecting threaded sleeve (203). A swing arm (201) is rotatably mounted on the rotating shaft (103). A threaded sleeve (2011) is fixedly sleeved on the swing arm (201). The threaded sleeve (2011) has threads on its outer side. The sleeve (202) is fixedly sleeved on the threaded sleeve (2011). The connecting threaded sleeve (203) is threadedly connected to the threaded sleeve (2011). The connecting threaded sleeve (203) is located outside the sleeve (202). The automatic cutting component (4) includes: a cutting mounting base (401), which is fixedly installed inside the detection pool (101); a torsion spring shaft (402) is rotatably mounted on the cutting mounting base (401), and a knife holder (4021) is fixedly mounted on the torsion spring shaft (402); the knife holder (4021) is located inside the cutting mounting base (401); a torsion spring (403) is sleeved on the torsion spring shaft (402); one end of the torsion spring (403) is fixedly connected to the torsion spring shaft (402), and the other end of the torsion spring (403) is fixedly connected to the cutting mounting base (401); The automatic cutting component (4) further includes: a cutter (404), which is fixedly mounted on the cutter holder (4021) and has an arc-shaped cutting edge at the bottom; the cutter (404) is located on one side of the end of the sleeve (202); the top of the cutter (404) is a beveled structure; the cutter (404) is used to cut off the clamping section of the fuel distribution pipe; The automatic cutting component (4) further includes a stop bar (4041), and the stop bar (4041) is fixedly installed at the end of the cutter (404).

2. The venting detection device for an ultra-high pressure fuel distribution pipe according to claim 1, characterized in that: The outer side of the front end of the sleeve (202) is a beveled structure; the inner side of the connecting threaded sleeve (203) is a beveled structure; two anti-slip rings (2031) are provided on the inner bevel of the connecting threaded sleeve (203), and the cross-sections of the two anti-slip rings (2031) are respectively a ratchet structure.

3. The venting detection device for an ultra-high pressure fuel distribution pipe according to claim 1, characterized in that: The sealing component (3) includes: a sealing tube (301), which is fixedly installed on the sleeve (202) on the right side; a sealing solenoid valve (302) is fixedly installed on the sealing tube (301); the sealing solenoid valve (302) is electrically connected to the submersible switch (1011).

4. The venting detection device for an ultra-high pressure fuel distribution pipe according to claim 1, characterized in that: The intake control component (5) includes: an intake pipe (501), which is fixedly installed on the sleeve (202) on the left side; a piston-type air pump is connected to the intake pipe (501); and an intake solenoid valve (502) is fixedly installed on the intake pipe (501).

5. The venting detection device for an ultra-high pressure fuel distribution pipe according to claim 4, characterized in that: A row of position switches (6011) is fixedly sleeved in the spiral groove on the winding cylinder (601), and the pressing end of the row of position switches (6011) protrudes from the spiral groove on the winding cylinder (601); the row of position switches (6011) is evenly distributed; a clamping rod (602) is rotatably installed in the detection pool (101), and the clamping rod (602) has an L-shaped structure; a row of grooves is provided on the inner side of the clamping rod (602); the row of position switches (6011) is electrically connected to the air intake solenoid valve (502).

6. The venting detection device for an ultra-high pressure fuel distribution pipe according to claim 5, characterized in that: The anti-folding and wrapping component (6) further includes: a positioning shaft (603), which is slidably inserted into the clamping rod (602); the end of the positioning shaft (603) is inserted into the inner side of the winding cylinder (601); a positioning tension spring (604) is sleeved on the positioning shaft (603); one end of the positioning tension spring (604) is fixedly connected to the positioning shaft (603), and the other end of the positioning tension spring (604) is fixedly connected to the clamping rod (602).

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