A high-pressure oil pipe quick connector

Abstract

The present invention relates to the technical field of oil pipe joints, and discloses a high-pressure oil pipe quick connector, comprising a sleeve and a plug that are hollow and adapted to be clamped together, the sleeve having a groove inside, a telescopic rubber ring fixedly connected to the inner wall of the groove, an inner adjustment ring rotatably connected to the inner wall of the groove and movably abutting against the outer wall of the telescopic rubber ring, sealing rings movably clamped at both ends of the inner adjustment ring, an outer adjustment ring fixedly connected to the outer side of the inner adjustment ring, a locking assembly provided between the outer adjustment ring and the plug; the left and right sides of the sleeve inner cavity respectively have abutment portions and tapered portions corresponding to the plug. After the sleeve and the plug are docked and locked by the present invention, the abutment section of the telescopic sealing sleeve 1 is sealed against the abutment portion of the sleeve inner wall, the corrugated sections 1 and 2 are uniformly deformed under pressure, thereby pressurizing and sealing the gap between the sleeve and the plug, increasing the single-layer sealing range, and greatly improving the comprehensive sealing performance of the joint. In addition, the connection speed is fast and the sealing is stable and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of oil pipe joints, in particular to a high-pressure oil pipe quick joint. Background Art

[0002] High-pressure fuel pipes are part of high-pressure oil circuits. They can withstand a certain level of oil pressure and possess a certain level of fatigue strength, ensuring the pipeline's sealing requirements. High-pressure fuel pipes are commonly used in mechanical equipment such as vehicles and lathes, ensuring stable and safe transportation of high-pressure oil. When forming a high-pressure oil circuit, high-pressure fuel pipes require connectors to connect the pipes. To ensure timely installation and connection, high-pressure fuel pipe connectors often use quick connectors.

[0003] The utility model with publication number CN220037731U discloses a reliable and leak-proof sealing automobile high-pressure oil pipe joint, which relates to the technical field of oil pipe joints and aims to solve the problem that due to the long-term flow of oil through the inside of the joint, the oil easily penetrates into the threaded connection part between the joint and the oil pipe, causing the threaded connection part to become very lubricated, resulting in the oil pipe and the joint being easily loosened and detached; it includes a joint body and an oil pipe body, a twist nut A is provided on the circumferential outer wall of the joint body; a connecting thread A is opened inside the joint body; a twist nut B is provided on the circumferential outer wall of the oil pipe body; a top push ring is provided at the bottom of the twist nut B; a connecting thread head is provided at the bottom of the oil pipe body; the oil inside the oil pipe will directly flow through the joint body through the connecting head, and will not directly flow through the threaded part of the joint body, and will not cause lubrication and loosening due to the contact of the threaded part with the oil, thereby reducing the loosening of the threaded part of the joint.

[0004] During use of the high-pressure oil pipe joint in the above-mentioned patent, when the joint is connected to the pipeline, the sealing rubber head on the sealing sleeve is laterally squeezed by the connecting thread head, and automatically deforms to fill the inner gap between the connecting head and the connecting thread head in the joint body, but the range of the extruded filling part is small and there is a lack of hard limit. Subsequently, when the internal oil pressure fluctuates greatly, the deformed part of the sealing rubber head is easy to withdraw, resulting in sealing failure; subsequently, as the joint and the pipeline are connected in place, the outer connection gap is further squeezed by the sealing rubber ring and the sealing gasket to achieve end face sealing. Since the sealing range of each single-layer seal is small, although multiple seals are used, the overall sealing effect is poor; the threaded rotary connection is slow, and the rotary feed easily causes irregular torsional deformation of the seal, reducing the sealing effect. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems of poor sealing effect, slow connection speed and easy deformation of the seal during use of general high-pressure oil pipe joints, which leads to reduced sealing effect. The present invention provides a high-pressure oil pipe quick connector.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A high-pressure oil pipe quick connector, comprising a sleeve and a plug, each of which is hollow and adapted to be snap-fitted together. The sleeve has a groove inside, a telescopic rubber ring fixedly connected to the inner wall of the groove, an inner adjustment ring rotatably connected to the inner wall of the groove and movably abutting against the outer wall of the telescopic rubber ring, sealing rings movably snap-fitted to both ends of the inner adjustment ring, an outer adjustment ring fixedly connected to the outer side of the inner adjustment ring, and a locking assembly provided between the outer adjustment ring and the plug;

[0008] The left and right sides of the inner cavity of the sleeve are respectively provided with abutment parts and cone parts corresponding to the plug; the left side of the outer periphery of the plug is fixedly connected with a telescopic sealing sleeve 1 composed of an abutment section and a corrugated section 1; the right side of the outer periphery of the plug is fixedly connected with a telescopic sealing sleeve 2 composed of a corrugated section 2 and a cone sleeve section; the corrugated sections 1 and 2 are both movably abutted against the outer wall of the plug; the outer diameters of the corrugated sections 1 and 2 are the same and are both smaller than the inner diameter of the sleeve; the left side of the outer periphery of the plug is movably connected with an extrusion component for adjusting the contraction of the telescopic sealing sleeve 1 and the telescopic sealing sleeve 2; a driving component for adjusting the extrusion component is provided on the inner side of the telescopic rubber ring.

[0009] Furthermore, the locking assembly includes locking blocks arranged on the upper and lower walls of the inner cavity on the right side of the outer adjustment ring, a triangular slot is provided at the bottom of the upper locking block, the outer adjustment ring is rotatably sleeved on the outer periphery of the sleeve, and two connecting sections of a circular array are respectively provided on the upper and lower sides between the outer adjustment ring and the inner adjustment ring, and movable grooves corresponding to the connecting sections are respectively provided on the upper and lower sides of the outer wall of the sleeve.

[0010] Furthermore, the locking assembly also includes a sleeve fixedly connected to the outer periphery of the right side of the plug, and the upper and lower sides of the sleeve are provided with circumferentially arranged L-shaped slots, and the L-shaped slot has an entrance arranged at the left end of the sleeve, and the locking block can be movably engaged with the L-shaped slot, and the front side of the upper L-shaped slot is slidably engaged with an L-shaped elastic pressure block, and the left side of the L-shaped elastic pressure block is fixedly connected to a wedge block that can be movably engaged with the triangular slot, and the top rear end of the wedge block has an inclined surface.

[0011] Furthermore, the inner corner portion of the L-shaped slot is chamfered.

[0012] Furthermore, three key slots are provided on the outer circumference of the right side of the sleeve, one of which is located at the top of the sleeve, and three key protrusions corresponding to the key slots are provided on the inner wall of the ferrule.

[0013] Furthermore, the extrusion assembly includes a swivel that is rotatably connected to the outer wall of the plug, a pull groove is provided on the rear side of the top of the swivel, and two arc grooves are symmetrically provided on the left and right sides of the outer wall of the swivel. An incomplete sleeve is fixedly connected to the front and rear sides of the plug, and an L-shaped pin rod that is movably engaged with the corresponding arc groove is slidably engaged on the left and right sides of the incomplete sleeve. The outer ends of the L-shaped pin rods on the left and right sides are fixedly connected to slip rings that are slidably engaged with the outer wall of the plug. The slip rings on the left and right sides are fixedly connected to the corrugated section one and the corrugated section two, respectively. The left end of the abutting section extends beyond the left end of the plug and can be movably engaged with the abutting part.

[0014] Furthermore, the drive assembly includes a cartridge fixedly connected to the upper and lower walls of the inner cavity of the inner adjustment ring, the cartridge passes through the telescopic rubber ring and is sealed with the telescopic rubber ring, a cross pin is slidably inserted on the cartridge, a through groove corresponding to the cross pin is provided in the middle of the cartridge, and circumferential guide grooves are symmetrically provided on the left and right walls of the groove, and the cross pin is movably engaged with the guide groove.

[0015] Furthermore, the guide groove is composed of a long curved groove and a short curved groove that are connected to each other, and the radius of the long curved groove is smaller than that of the short curved groove.

[0016] Furthermore, the cross pin can be movably inserted into the pull slot.

[0017] The beneficial effects of the present invention are as follows:

[0018] The present invention locks the sleeve and the plug together, so that the abutting section of the telescopic sealing sleeve one is in sealing contact with the abutting portion of the inner wall of the sleeve, and the tapered sleeve section of the telescopic sealing sleeve two is in sealing contact with the tapered portion of the inner wall of the sleeve. The telescopic sealing sleeve one and the telescopic sealing sleeve two on both sides are squeezed respectively by the control extrusion component, so that the corrugated section one is compressed toward the abutting section, and the corrugated section two is compressed toward the tapered sleeve section. The corrugated sections one and two are uniformly deformed under pressure and abut against the inner wall of the sleeve and the outer wall of the plug respectively, thereby pressurizing and sealing the gap between the sleeve and the plug, increasing the single-layer sealing range and making it difficult to withdraw, thereby greatly improving the comprehensive sealing performance of the joint.

[0019] The present invention has the outer diameters of the first and second corrugated sections smaller than the inner diameter of the sleeve during installation, so that the plug has little resistance when inserted into the sleeve, and is convenient for quick insertion into place. After insertion into place, the outer adjustment ring is controlled to slightly deflect, which can first drive the locking component to limit the connection between the sleeve and the plug, and then drive the driving component to make the adjustment component adjust the first and second telescopic sealing sleeves to fully compress and seal. During compression and sealing, the sleeve and the plug cannot be disengaged, the joint connection speed is fast, and the sealing is stable and reliable.

[0020] The present invention provides a double sealing isolation to the outside by arranging a sealing ring and a telescopic rubber ring in the groove adjustment area, and utilizes the deformation ability of the telescopic rubber ring to realize the adjustment function of the first and second telescopic sealing sleeves on the basis of ensuring the sealing of the adjustment area, and the adjustment is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional structural diagram of the quick connector of the present invention;

[0022] Figure 2 It is a partial three-dimensional cutaway view of the quick connector of the present invention;

[0023] Figure 3 This is a three-dimensional cutaway view of the quick connector sleeve of the present invention;

[0024] Figure 4 The quick connector sleeve and the outer ring of the present invention are cut into three dimensions. Figure 1 ;

[0025] Figure 5 This is a three-dimensional cutaway view of the quick connector plug and ferrule of the present invention;

[0026] Figure 6 This is a partial three-dimensional cutaway view of the quick connector sleeve and L-shaped slot of the present invention;

[0027] Figure 7 This is a three-dimensional cutaway view of the quick connector plug and the telescopic sealing sleeve of the present invention;

[0028] Figure 8 The quick connector sleeve and the outer ring of the present invention are cut into three dimensions. Figure 2 .

[0029] Figure numerals: 1. sleeve; 11. telescopic rubber ring; 12. guide groove; 2. inner adjustment ring; 21. sealing ring; 22. outer adjustment ring; 23. locking block; 24. cartridge; 25. cross pin; 3. plug; 31. ferrule; 32. L-shaped slot; 4. L-shaped elastic pressure block; 41. wedge; 5. telescopic sealing sleeve 1; 6. telescopic sealing sleeve 2; 7. swivel; 71. pull groove; 72. arc groove; 73. L-shaped pin; 74. slip ring. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] Example 1, as Figures 1-8As shown, a high-pressure oil pipe quick connector includes a hollow sleeve 1 and a plug 3 that are adapted to be snap-fitted together. The sleeve 1 has a groove inside, and a telescopic rubber ring 11 is fixedly connected to the inner wall of the groove. An inner adjustment ring 2 is rotatably connected to the inner wall of the groove and movably abuts against the outer wall of the telescopic rubber ring 11. Sealing rings 21 are movably snap-fitted to both ends of the inner adjustment ring 2. An outer adjustment ring 22 is fixedly connected to the outer side of the inner adjustment ring 2. A locking assembly is provided between the outer adjustment ring 22 and the plug 3.

[0032] The left and right sides of the inner cavity of the sleeve 1 are respectively provided with abutment parts and cone parts corresponding to the plug 3. The left side of the outer periphery of the plug 3 is fixedly connected with a telescopic sealing sleeve 1 5 composed of an abutment section and a corrugated section 1, and the right side of the outer periphery of the plug 3 is fixedly connected with a telescopic sealing sleeve 2 6 composed of a corrugated section 2 and a cone sleeve section. The corrugated sections 1 and 2 are both movably abutted against the outer wall of the plug 3. The outer diameters of the corrugated sections 1 and 2 are the same and are both smaller than the inner diameter of the sleeve 1. The left side of the outer periphery of the plug 3 is movably connected with an extrusion component for adjusting the contraction of the telescopic sealing sleeve 1 5 and the telescopic sealing sleeve 2 6, and a driving component for adjusting the extrusion component is provided on the inner side of the telescopic rubber ring 11.

[0033] When the plug 3 is inserted into the sleeve 1, the outer ring 22 is controlled to drive the inner ring 2 to deflect forward and reset, and the locking assembly can be driven to limit the connection between the sleeve 1 and the plug 3, so that the sleeve 1 and the plug 3 cannot be disengaged. The corresponding abutment section of the telescopic sealing sleeve 1 5 squeezes and deforms the abutment part of the inner wall of the sleeve 1 to fill the connection gap and realize sealing abutment, and the tapered sleeve section of the telescopic sealing sleeve 2 6 squeezes and deforms the tapered part of the inner wall of the sleeve 1 to fill the connection gap, also realizing sealing abutment. Then, as the outer ring 22 is controlled to continue to deflect and reset, the drive The component deformation recovery drives the adjustment component brought by the insertion of the plug 3, and adjusts the compression of the telescopic sealing sleeve 1 5 and the telescopic sealing sleeve 2 6. The corrugated section 1 corresponding to the telescopic sealing sleeve 1 5 and the corrugated section 2 corresponding to the telescopic sealing sleeve 2 6 are compressed and deformed, respectively sealing and filling the connection gap between the sleeve 1 and the plug 3. When the outer adjustment ring 22 is fully deflected and reset, the connection gap between the sleeve 1 and the plug 3 is completely sealed and filled, thereby realizing pressurized sealing between the sleeve 1 and the plug 3, and the single-layer sealing range is increased, thereby greatly improving the comprehensive sealing performance of the joint. Since the telescopic sealing sleeve 1 5 and the telescopic sealing sleeve 2 6 are relatively hard-limited, the compressed seal abutment state is not easy to exit. In addition, when the outer adjustment ring 22 is fully deflected and reset, the locking component automatically locks the plug 3 and the sleeve 1, and the two cannot be disengaged. The connection speed is fast and the sealing is stable and reliable.

[0034] Example 2, based on the above example, the locking assembly includes locking blocks 23 arranged on the upper and lower walls of the inner cavity on the right side of the outer adjustment ring 22, a triangular slot is provided at the bottom of the upper locking block 23, the outer adjustment ring 22 is rotatably sleeved on the outer periphery of the sleeve 1, and two connecting sections of a circular array are respectively provided on the upper and lower sides between the outer adjustment ring 22 and the inner adjustment ring 2, and movable grooves corresponding to the connecting sections are respectively provided on the upper and lower sides of the outer wall of the sleeve 1.

[0035] The locking assembly also includes a sleeve 31 fixedly connected to the outer periphery of the right side of the plug 3. A circumferential L-shaped slot 32 is provided on the upper and lower sides of the sleeve 31. The L-shaped slot 32 has an entrance arranged at the left end of the sleeve 31. The locking block 23 can be movably engaged with the L-shaped slot 32. The front side of the upper L-shaped slot 32 is slidably engaged with an L-shaped elastic pressure block 4. The left side of the L-shaped elastic pressure block 4 is fixedly connected to a wedge block 41 that can be movably engaged with the triangular slot. The top rear end of the wedge block 41 has an inclined surface.

[0036] Before the control plug 3 is connected to the sleeve 1, the outer adjustment ring 22 is rotated to drive the locking block 23 to deflect backward and downward. When the connecting section deflects to the maximum range under the limit of the movable groove, the plug 3 is inserted into the sleeve 1, and the locking block 23 is just opposite to the entrance of the L-shaped slot 32. As the plug 3 is fully inserted, the locking block 23 moves to the bend in the L-shaped slot 32. Subsequently, the control outer adjustment ring 22 is deflected forward and downward to reset, and the locking block 23 moves to the front side of the L-shaped slot 32, so that the sleeve 1 and the plug 3 can be connected. The connection limit is formed to prevent the plug 3 from falling out. Subsequently, as the outer adjustment ring 22 deflects forward and downward to fully reset, the locking block 23 squeezes the inclined surface of the wedge block 41 to drive the L-shaped elastic pressure block 4 to compress. When the triangular slot and the wedge block 41 are docked, the L-shaped elastic pressure block 4 is reset under the action of its own elastic force to drive the wedge block 41 to engage with the triangular slot, thereby locking the locking block 23. The outer adjustment ring 22 cannot deflect, thereby ensuring that the plug 3 is firmly connected to the sleeve 1. When disassembly is required later, press the L-shaped elastic pressure block 4 to retract it.

[0037] Embodiment 3: Based on the above embodiment, the inner corner of the L-shaped slot 32 is chamfered.

[0038] Furthermore, the left end of the abutting section exceeds the left end of the plug 3 and can be movably abutted against the abutting portion.

[0039] After the control plug 3 is inserted into the sleeve 1, the left end of the abutment section movably abuts against the abutment part. When the control outer adjustment ring 22 is deflected forward and downward to reset, the locking block 23 at the bend in the L-shaped slot 32 moves forward along the chamfered surface, squeezing the chamfer so that the plug 3 is further inserted into the sleeve 1, so as to squeeze the abutment section and force it to deform to fill the connection gap. In this process, there is no need to further apply pressure to the plug 3 from the right end. It is only necessary to hold the sleeve 1 and the outer adjustment ring 22 for adjustment, so as to reduce the stress damage to the sleeve 1 during installation.

[0040] Embodiment 4, based on the above embodiment, three key grooves are opened on the outer circumference of the right side of the sleeve 1, one of the key grooves is located at the top of the sleeve 1, and three key protrusions corresponding to the key grooves are provided on the inner wall of the ferrule 31.

[0041] With this design, since the L-shaped elastic pressure block 4 is in the L-shaped slot 32 on the upper side, the L-shaped elastic pressure block 4 corresponds to the key protrusion on the top, and the corresponding locking block 23 with a triangular slot is on the upper side and also corresponds to the key slot on the top, it is convenient to guide the installation between the plug 3 and the sleeve 1.

[0042] Example five, on the basis of the above example, the extrusion assembly includes a swivel 7 rotatably connected to the outer wall of the plug 3, a shifting groove 71 is provided on the rear side of the top of the swivel 7, and two arc grooves 72 symmetrically arranged in a circumference are provided on the left and right sides of the outer wall of the swivel 7, and the front and rear sides of the plug 3 are fixedly connected with incomplete sleeves, and the left and right sides of the incomplete sleeve are slidably engaged with L-shaped pins 73 that are movably engaged with the corresponding arc grooves 72, and the outer ends of the L-shaped pins 73 on the left and right sides are fixedly connected with slip rings 74 that are slidably engaged with the outer wall of the plug 3, and the slip rings 74 on the left and right sides are respectively fixedly connected to the corrugated section one and the corrugated section two.

[0043] By driving the swivel 7 to deflect forward and downward, the swivel 7 drives the arc grooves 72 on both sides to squeeze the L-shaped pin rods 73, so as to drive the L-shaped pin rods 73 on both sides to move backward along the incomplete sleeve, thereby driving the slip rings 74 on both sides to squeeze the telescopic sealing sleeve 1 5 and the telescopic sealing sleeve 2 6 respectively, so as to compress and deform the corrugated sections 1 and 2, thereby cooperating with the abutting section and the tapered sleeve section to seal and fill the connection gap between the sleeve head 1 and the plug 3, thereby increasing the range of the single-layer seal, thereby greatly improving the comprehensive sealing performance of the joint.

[0044] Example six, on the basis of the above examples, the drive assembly includes a cartridge 24 fixedly connected to the upper and lower walls of the inner cavity of the inner adjustment ring 2, the cartridge 24 passes through the telescopic rubber ring 11 and is sealed with the telescopic rubber ring 11, a cross pin 25 is slidably inserted on the cartridge 24, a through groove corresponding to the cross pin 25 is opened in the middle of the cartridge 24, and a circumferential guide groove 12 is symmetrically opened on the left and right walls of the groove, the cross pin 25 is movably engaged with the guide groove 12, and the cross pin 25 can be movably inserted into the pull groove 71.

[0045] The guide groove 12 is composed of a long curved groove and a short curved groove that are connected to each other. The radius of the long curved groove is smaller than that of the short curved groove.

[0046] When the outer adjusting ring 22 is controlled to drive the inner adjusting ring 2 to deflect backward and downward so that the driving assembly is deformed and contracted to avoid the position, the inner adjusting ring 2 drives the cartridge 24 to deflect the cross pin 25 synchronously, and the telescopic rubber ring 11 is stretched and deformed by the cartridge 24. Driven by the guide groove 12, the cross pin 25 contracts into the cartridge 24, and the cross pin 25 is finally moved from the long curved groove to the end of the short curved groove. The contracted cross pin 25 does not affect the insertion of the plug 3 into the sleeve 1. Subsequently, when the plug 3 is inserted into the sleeve 1 and the outer adjusting ring 22 is controlled to be reset, the cross pin 25 is moved from the short curved groove to the long curved groove, and the cross pin 25 is just inserted into the dial groove 71. The outer adjustment ring 22 has been reset and deflected for a certain distance, and the locking block 23 has moved forward for a certain distance along the L-shaped slot 32. The sleeve 1 and the plug 3 are stably connected and limited, and the abutment section and the cone sleeve section will no longer be squeezed and changed. As the outer adjustment ring 22 continues to reset, the cross pin 25 pushes the slot 71 to drive the rotating ring 7 to deflect forward and downward, thereby stably squeezing the corrugated sections 1 and 2 to compress and deform uniformly to seal and fill the connection gap between the sleeve 1 and the plug 3. When the outer adjustment ring 22 is completely reset, the sleeve 1 and the plug 3 are locked, and the corrugated sections 1 and 2 are hard-limited and relatively fixed in deformation to achieve stable sealing and filling.

[0047] Since the telescopic rubber ring 11 is sealedly connected to the cartridge 24, and the inner adjustment ring 2 and the inner cavity of the sleeve 1 are doubly sealed and isolated by the movable sealing ring 21 and the fixed sealing telescopic rubber ring 11, and the deformation ability of the telescopic rubber ring 11 is utilized, the adjustment function of the telescopic sealing sleeve 1 5 and the telescopic sealing sleeve 2 6 is realized on the basis of ensuring reliable sealing of the adjustment area, and the adjustment is stable and reliable.

[0048] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-pressure oil pipe quick connector, comprising a sleeve (1) and a plug (3) which are respectively hollow and adapted to be snap-fitted, characterized in that: The sleeve (1) has a groove inside, the inner wall of the groove is fixedly connected to a telescopic rubber ring (11), the inner wall of the groove is rotatably connected to an inner adjustment ring (2) that is movably abutted against the outer wall of the telescopic rubber ring (11), both ends of the inner adjustment ring (2) are movably clamped with sealing rings (21), the outer side of the inner adjustment ring (2) is fixedly connected to an outer adjustment ring (22), and a locking assembly is provided between the outer adjustment ring (22) and the plug (3); The locking assembly comprises locking blocks (23) arranged on the upper and lower walls of the inner cavity on the right side of the outer adjustment ring (22), a triangular slot is provided at the bottom of the upper locking block (23), the outer adjustment ring (22) is rotatably sleeved on the periphery of the sleeve (1), two connecting segments of a circumferential array are provided on the upper and lower sides between the outer adjustment ring (22) and the inner adjustment ring (2), and movable slots corresponding to the connecting segments are provided on the upper and lower sides of the outer wall of the sleeve (1); The locking assembly further comprises a sleeve (31) fixedly connected to the outer periphery of the right side of the plug (3), the sleeve (31) is provided with a circumferentially arranged L-shaped slot (32) on both the upper and lower sides, the L-shaped slot (32) having an entrance arranged at the left end of the sleeve (31), the locking block (23) being able to movably engage with the L-shaped slot (32), the front side of the upper L-shaped slot (32) being slidably engaged with an L-shaped elastic pressure block (4), the left side of the L-shaped elastic pressure block (4) being fixedly connected with a wedge block (41) capable of movably engaging with the triangular slot, the top rear end of the wedge block (41) having an inclined surface; The left and right sides of the inner cavity of the sleeve (1) are respectively provided with abutment portions and cone portions corresponding to the plug (3); the left side of the outer periphery of the plug (3) is fixedly connected with a telescopic sealing sleeve 1 (5) consisting of abutment section and corrugated section 1; the right side of the outer periphery of the plug (3) is fixedly connected with a telescopic sealing sleeve 2 (6) consisting of corrugated section 2 and cone sleeve section; the corrugated sections 1 and 2 are movably abutted against the outer wall of the plug (3); the outer diameters of the corrugated sections 1 and 2 are the same and are both smaller than the inner diameter of the sleeve (1); the left side of the outer periphery of the plug (3) is movably connected with an extrusion assembly for adjusting the contraction of the telescopic sealing sleeve 1 (5) and the telescopic sealing sleeve 2 (6); the inner side of the telescopic rubber ring (11) is provided with a driving assembly for adjusting the extrusion assembly; The extrusion assembly includes a rotating ring (7) rotatably connected to the outer wall of the plug (3), a shifting groove (71) is provided on the rear side of the top of the rotating ring (7), and two arc grooves (72) are symmetrically provided on the left and right sides of the outer wall of the rotating ring (7), and the front and rear sides of the plug (3) are fixedly connected to an incomplete sleeve, and the left and right sides of the incomplete sleeve are slidably engaged with an L-shaped pin rod (73) that is movably engaged with the corresponding arc groove (72), and the outer ends of the L-shaped pin rod (73) on the left and right sides are fixedly connected to a slip ring (74) that is slidably engaged with the outer wall of the plug (3), and the slip rings (74) on the left and right sides are fixedly connected to the corrugated section 1 and the corrugated section 2 respectively, and the left end of the abutting section exceeds the left end of the plug (3) and can be movably abutted with the abutting portion; The driving assembly includes a cartridge (24) fixedly connected to the upper and lower walls of the inner cavity of the inner adjustment ring (2), the cartridge (24) passes through the telescopic rubber ring (11) and is sealed with the telescopic rubber ring (11), a cross pin (25) is slidably inserted on the cartridge (24), a through groove corresponding to the cross pin (25) is provided in the middle of the cartridge (24), and a circumferential guide groove (12) is symmetrically provided on the left and right walls of the groove, and the cross pin (25) is movably engaged with the guide groove (12).

2. A high-pressure oil pipe quick connector according to claim 1, characterized in that: The inner corner portion of the L-shaped slot (32) is chamfered.

3. A high-pressure oil pipe quick connector according to claim 2, characterized in that: Three key slots are provided on the outer circumference of the right side of the sleeve (1), one of which is located at the top of the sleeve (1), and the inner wall of the ferrule (31) is provided with three key protrusions corresponding to the key slots.

4. A high-pressure oil pipe quick connector according to claim 3, characterized in that: The guide groove (12) is composed of a long curved groove and a short curved groove that are connected to each other, and the radius of the long curved groove is smaller than that of the short curved groove.

5. A high-pressure oil pipe quick connector according to claim 4, characterized in that: The cross pin (25) can be movably inserted into the pull slot (71).

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