CN215889937U - Hydraulic connector - Google Patents

Abstract

The application relates to the technical field of petroleum machinery, in particular to a hydraulic connector, which solves the problems of inconvenience in disassembly and low efficiency. The hydraulic connector includes a fitting having a first passage. The base is connected with the joint in an abutting mode, the base is provided with a second channel, and the base is provided with a first oil filling opening. A plurality of locking pieces are that the annular distributes to enclose to establish and form and hold the chamber, and a plurality of locking pieces have the first end that is close to the base and keep away from the second end of base, and the partly first end looks butt of a plurality of locking pieces of base is located and holds the intracavity. The shell is sleeved outside the plurality of locking blocks and connected with the base, and a second oil injection port is formed in the shell. The sleeve receives the hydraulic oil of the first oil filling port, abuts against the second ends of the plurality of locking blocks, drives the second ends of the plurality of locking blocks to abut against a part of the joint located in the accommodating cavity, and locks the relative position of the base and the joint. The sleeve receives the hydraulic oil of second oiling mouth, with the first end butt of a plurality of locking pieces, drives a plurality of locking pieces and connects the separation. The application is for connection of well control devices.

Description

Hydraulic connector

Technical Field

The application relates to the technical field of petroleum machinery, in particular to a hydraulic connector.

Background

At present, the production operation of the coiled tubing of the oil well and the gas well is mainly performed by a horizontal well, but the problem that the operation platform is high is not ignored, and well control devices are mostly connected in a union and flange mode; in actual operation, the connection in the form of a union or a flange is tightened and dismantled a large number of times; and the multi-wellhead zipper type alternate operation is adopted in the coiled tubing operation field, so that operators need to frequently go up and down wellhead platforms for tightening and dismounting; after pumping perforation is completed, the well mouth is closed, after the internal pressure of the blowout preventer is released to zero and the liquid in the blowout preventer is emptied, an operator replaces a perforating gun string and a downhole tool at the disassembly and connection part of the upper platform, and a crane hoists the blowout preventer to move to a nearby well mouth; the platform is mounted again to complete the tightening work; the whole process requires continuous repeated tightening and dismantling by the operator.

In the process of realizing the connection of the well control device, at least the following problems exist: the disassembly of the operating personnel is inconvenient and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a hydraulic connector for solve among the prior art well control device and connect the in-process, the operating personnel dismantles inconveniently and inefficiency.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

the embodiment of the application provides a hydraulic connector. The hydraulic connector comprises a joint, a base, a plurality of locking blocks, a shell and a sleeve. The fitting has a first passageway. The base is used for connecting with the joint butt under hydraulic connector's connected state, and the base has the second passageway, and first passageway is linked together with the second passageway, has seted up first oiling mouth on the base. A plurality of locking pieces are that the annular distributes to enclose to establish and form and hold the chamber, and a plurality of locking pieces have the first end that is close to the base and keep away from the second end of base, and the partly first end looks butt with a plurality of locking pieces of base, and are located and hold the intracavity. The shell is sleeved outside the plurality of locking blocks and connected with the base, and a second oil injection port is formed in the shell. The second oil filling port and the first oil filling port are respectively positioned at two opposite sides of the sleeve. The sleeve is used for receiving hydraulic oil from the first oil injection port, abuts against the second ends of the plurality of locking blocks and drives the second ends of the plurality of locking blocks to abut against a part of the joint located in the accommodating cavity so as to lock the relative position of the base and the joint. The sleeve is also used for receiving hydraulic oil from the second oil injection port, abuts against the first ends of the plurality of locking blocks and drives the second ends of the plurality of locking blocks to be separated from the joint.

The hydraulic connector provided by the embodiment of the application is used for connection between well control devices or pipelines. When the well control device is used, the joint is connected with a connecting port or a pipeline of the well control device, so that the first channel is communicated with the connecting port or the pipeline of the well control device. The base is connected with a connector or a pipeline of the well control device, so that the second channel is communicated with the connector or the pipeline of the well control device. In this case, the joint is inserted into the accommodation chamber. And hydraulic oil is injected into the first oil injection port, the sleeve is abutted against the second ends of the plurality of locking blocks, and the second ends of the plurality of locking blocks are driven to be abutted against a part of the joint positioned in the accommodating cavity so as to lock the relative position of the base and the joint. And locking and fixing between the well control devices or pipelines are realized. And hydraulic oil is injected into the second oil injection port, the sleeve is abutted to the first ends of the plurality of locking blocks, and the second ends of the plurality of locking blocks are driven to be separated from the joint. Thereby realizing the connection and separation between the well control devices or pipelines. And then the problems of inconvenience and low efficiency in connection of well control devices or in connection and disassembly of pipelines can be avoided.

Optionally, the plurality of locking pieces have a first locking groove and a second locking groove which are arranged opposite to each other. The second locking groove is arranged close to the joint and the base. The second locking groove is communicated with the accommodating cavity. And a part of the joint and a part of the base are abutted and fixed in the second locking groove. A movable cavity is formed by the enclosing among the plurality of locking blocks, the base and the shell.

Optionally, the sleeve is located within the active cavity. The inner wall of the sleeve is provided with an annular bulge extending along the radial direction, and the annular bulge is positioned in the first locking groove. A second oil injection cavity is formed between the sleeve and the shell in an enclosing mode, and the second oil injection port is communicated with the second oil injection cavity. The second oiling mouth is used for injecting hydraulic oil and promotes the sleeve and move down to the lower lateral wall butt in annular protrusion and first locking groove makes the outside radial swing of second end of a plurality of locking pieces fix with unblock joint and base looks butt. A first oil injection cavity is formed between the sleeve and the base in an enclosing mode, and the first oil injection port is communicated with the first oil injection cavity. The first oil filling port is used for injecting hydraulic oil to push the sleeve to move upwards so as to enable the top of the sleeve to be abutted against the upper side wall of the first locking groove, and the second ends of the locking blocks radially swing inwards to be abutted and fixed with the locking joint and the base in the second locking groove.

Optionally, an abutting portion is provided on an outer wall of the joint, and an upper surface of the abutting portion is a tapered surface. The second locking groove comprises a first side wall and a second side wall which are opposite. A part of the abutting part is positioned in the second locking groove, and the first side wall is attached to the conical surface. An annular step-shaped structure is formed on the base, and the second side wall is attached to the step surface of the annular step-shaped structure.

Optionally, the base comprises a fixed seat and a sealing conduit. The fixing seat is provided with a third channel, and the first channel is communicated with the third channel. One part of the fixing seat extends into the shell, the other part of the fixing seat is positioned outside the shell, and the fixing seat is connected with the shell. The movable cavity is formed by enclosing the fixed seat, the plurality of locking blocks and the shell. The upper end of the fixed seat is provided with an installation cavity communicated with the third channel. The first oil filling port is positioned on the outer wall of the fixed seat. The sealing conduit has a fourth passage in communication with the third passage. One part of the sealing guide pipe is positioned in the mounting cavity and connected with the fixed seat, and the other part of the sealing guide pipe is positioned outside the mounting cavity and is abutted against the abutting part. The annular step-like structure is located on the outer wall of the sealing conduit.

Optionally, a guide portion is provided on an outer wall of the joint. The guide part is located butt portion below to with butt portion integrated into one piece, the surface of guide part is provided with first guide conical surface. And a first inner annular guide conical surface is arranged on the inner wall of the fourth channel and is attached to the first guide conical surface.

Optionally, the outer surface of the guide portion is provided with a second guiding tapered surface, the second guiding tapered surface is located below the first guiding tapered surface, and the second guiding tapered surface is connected with the first guiding tapered surface. And a second inner annular guide conical surface is arranged on the inner wall of the fourth channel, is positioned below the first inner annular guide conical surface and is connected with the first inner annular guide conical surface, and the second inner annular guide conical surface is attached to the second guide conical surface.

Optionally, the hydraulic connector further comprises a lead-in nipple. The leading-in connector is arranged at one end, far away from the base, of the shell, and a third guiding conical surface is arranged on the inner wall of the leading-in connector.

Optionally, the hydraulic connector further comprises an indicator lever. One end of the indicating rod is connected with the sleeve, the other end of the indicating rod penetrates through the fixing seat to extend outwards, and the indicating rod is in sliding fit with the fixing seat.

Optionally, the hydraulic connector further comprises a shear pin, a rotation shaft, a handle and a torsion spring. One end of the safety pin is positioned in the movable cavity. The shell is provided with a through hole communicated with the movable cavity, and the other end of the safety pin extends out of the shell through the through hole. The safety pin is used for preventing the sleeve from sliding in the movable cavity. The other end of safety pin is run through to the axis of rotation, and is connected with the safety pin, and the both ends of axis of rotation are connected with the casing rotation. One end of the handle is arranged on the rotating shaft. The torsion spring is sleeved outside the rotating shaft, one end of the torsion spring is abutted to the outer wall of the shell, and the other end of the torsion spring is abutted to the handle. The torsion spring is used for extending one end of the safety pin close to the shell into the movable cavity in a reset state.

Optionally, a third oil injection cavity is arranged in the fixed seat, one end of the third oil injection cavity is communicated with the outside, and the third oil injection cavity is communicated with a third oil injection port on the fixed seat. The hydraulic connector further comprises a piston rod, a piston head, a plugging head and a compression spring. The piston rod is arranged in the third oil injection cavity, and one end of the piston rod extends out of the third oil injection cavity and extends outwards. The handle is arranged close to the piston rod. The piston head is arranged in the third oil injection cavity and is in sliding fit with the inner wall of the third oil injection cavity, and the other end of the piston rod is connected with the piston head. And the blocking head is arranged on the shell and used for blocking the third oil injection cavity. One end of the piston rod penetrates through the plugging head to extend outwards, and the piston rod is in sliding fit with the plugging head. The compression spring is sleeved outside the piston rod and is positioned between the piston head and the plugging head.

Drawings

Fig. 1 is a schematic diagram of an exploded structure of a hydraulic connector provided in an embodiment of the present application;

FIG. 2 is a schematic view of an assembled structure of a hydraulic connector according to an embodiment of the present disclosure;

fig. 3 is a schematic view of an assembly structure of a plurality of locking blocks according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a lock block according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a receiving chamber according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of an assembled structure of a sleeve according to an embodiment of the present disclosure;

FIG. 7 is an enlarged view of the circled portion in FIG. 2;

FIG. 8 is a schematic structural diagram of a second oil injection cavity provided in the embodiments of the present application;

FIG. 9 is a schematic structural diagram of a first oil injection cavity provided in an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a joint provided in the embodiments of the present application;

FIG. 11 is a schematic structural view of a second locking groove provided in the embodiments of the present application;

fig. 12 is a schematic view of an assembly structure of the joint and the locking block according to the embodiment of the present application;

fig. 13 is a schematic diagram of an exploded structure of a base according to an embodiment of the present disclosure;

FIG. 14 is a schematic view of an assembly structure of the fixing base and the sealing tube according to the embodiment of the present application;

fig. 15 is a schematic structural view of a fixing base according to an embodiment of the present disclosure;

FIG. 16 is a schematic view of another embodiment of a joint according to the present disclosure;

FIG. 17 is a schematic diagram of a sealed conduit according to an embodiment of the present application;

FIG. 18 is a schematic view of a lead-in connector according to an embodiment of the present disclosure;

FIG. 19 is a schematic diagram of an exemplary embodiment of an indicator stem;

FIG. 20 is a schematic diagram of a safety assembly according to an embodiment of the present application;

FIG. 21 is a schematic view of an assembled structure of a safety assembly according to an embodiment of the present application;

FIG. 22 is a structural diagram illustrating a state where the shear pin slides out of the housing according to an embodiment of the present application;

FIG. 23 is an enlarged view of the circled portion of FIG. 22;

FIG. 24 is a schematic diagram of a connection state of a hydraulic connector according to an embodiment of the present disclosure;

fig. 25 is a schematic perspective view of a connection state of a hydraulic connector according to an embodiment of the present application;

FIG. 26 is a schematic diagram of a hydraulic connector disconnect configuration according to an embodiment of the present application;

fig. 27 is a schematic perspective view of a hydraulic connector in a disconnected state according to an embodiment of the present application.

Detailed Description

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

At present, the production operation of the coiled tubing of the oil well and the gas well is mainly horizontal wells. Well control devices are mostly connected in a union or flange mode. In practice, repeated tightening and loosening by the operator is required. Not only personnel intensity of labour is big and repetition frequency is high, more importantly every well head all has the high pressure to have great risk to the operating personnel of climbing repeatedly. Meanwhile, the worker repeatedly detaches and fastens the screw rod, so that the dismounting is inconvenient and the efficiency is low.

In view of the above problems, embodiments of the present application provide a hydraulic connector. The hydraulic connector shown with reference to fig. 1 may include a fitting 100, a base 200, a plurality of locking blocks 300, a housing 400, and a sleeve 500. Referring to fig. 2, the joint 100 has a first passage 110, and the first passage 110 can be used for transporting materials such as oil, gas, and the like. The sub 100 is flanged to a well control device (e.g., hydraulic pump, blowout preventer, pneumatic pump, etc.). When the hydraulic connector is in the connected state, the base 200 abuts against the joint 100, the base 200 has a second passage 210 communicating with the first passage 110, and the material conveyed by the first passage 110 enters the second passage 210. The base 200 is provided with a first oil filling port 220.

Referring to fig. 3, a plurality of locking blocks 300 are annularly distributed and enclosed to form a containing cavity 310. Referring to fig. 2, the plurality of locking blocks 300 have a first end 320 close to the base 200 and a second end 330 far from the base 200, and a portion of the base 200 abuts against the first end 320 of the plurality of locking blocks 300 and is located in the accommodating cavity 310. The housing 400 is sleeved outside the plurality of locking pieces 300 and connected with the base 200, and a second oil filling port 410 is formed in the housing 400. The second oil injection port 410 and the first oil injection port 220 are located on opposite sides of the sleeve 500, respectively. The hydraulic oil is injected into the first oil injection port 220, the sleeve 500 abuts against the second ends 330 of the plurality of locking pieces 300, the second ends 330 of the plurality of locking pieces 300 are driven to abut against a part of the joint 100 located in the accommodating chamber 310, the relative position of the base 200 and the joint 100 is locked, and the base 200 and the joint 100 are fixed in the closest place, which is a hydraulic connector connection state. Hydraulic oil is injected into the second oil injection port 410, and the sleeve 500 is brought into contact with the first ends 320 of the plurality of locking pieces 300 to drive the second ends 330 of the plurality of locking pieces 300 to be separated from the joint 100, which is a hydraulic connector disconnected state.

The hydraulic connector provided by the embodiment of the application is used for connection between well control devices or pipelines. In use, the connector 100 is first connected to a connection port or conduit of a well control device, and the first channel 110 is connected to the connection port or conduit of the well control device. The base 200 is connected to a connection port or conduit of a well control device, such that the second channel 210 is in communication with the connection port or conduit of the well control device. In this case, the joint 100 is inserted into the receiving chamber 310. Hydraulic oil is injected into the first oil injection port 220, the sleeve 500 abuts against the second ends 330 of the plurality of locking pieces 300, and the second ends 330 of the plurality of locking pieces 300 are driven to abut against a portion of the joint 100 located in the accommodating cavity 310, so as to lock the relative position of the base 200 and the joint 100. And locking and fixing between the well control devices or pipelines are realized. When the second oil inlet 410 is filled with hydraulic oil, the sleeve 500 abuts against the first ends 320 of the plurality of locking pieces 300, and drives the second ends 330 of the plurality of locking pieces 300 to separate from the joint 100. Thereby realizing the connection and separation between the well control devices or pipelines. And then the problems of inconvenience and low efficiency in connection of well control devices or in connection and disassembly of pipelines can be avoided.

In some embodiments of the present application, in order to fix the plurality of locking blocks 300 to the base 200 and the joint 100, the plurality of locking blocks 300 shown in fig. 4 have a first locking groove 340 and a second locking groove 350 which are opposite to each other. Referring to fig. 5, the second locking groove 350 is provided adjacent to the joint 100 and the base 200. The second locking groove 350 communicates with the receiving chamber 310. A portion of the joint 100 abuts against a portion of the base 200 and is fixed in the second locking groove 350. A movable chamber 600 is defined between the plurality of locking blocks 300, the base 200 and the housing 400.

Based on the above, the sleeve 500 is located in the movable chamber 600 as shown in fig. 6, and the sleeve 500 is pushed to move upward or downward in the movable chamber 600 by the hydraulic oil. An annular protrusion 510 extending in the radial direction is disposed on the inner wall of the sleeve 500, and the annular protrusion 510 and the sleeve 500 may be integrally formed. The annular protrusion 510 is located in the first locking groove 340. The first locking groove 340 has an upper sidewall 3420 and a lower sidewall 3410 disposed opposite to each other. Referring to fig. 7, a second oil injection cavity 420 is formed between the sleeve 500 and the housing 400, and the second oil injection port 410 is communicated with the second oil injection cavity 420. The second oil injection port 410 is used for injecting hydraulic oil to push the sleeve 500 to move downwards so as to abut the annular protrusion 510 with the lower side wall 3410 of the first locking groove 340, so that the second ends 330 of the plurality of locking blocks 300 swing outwards and radially to unlock the joint 100 from abutting fixation with the base 200. A first oil injection cavity 230 is formed between the sleeve 500 and the base 200 in an enclosing manner, and the first oil injection port 220 is communicated with the first oil injection cavity 230. The first oil inlet 220 is used for injecting hydraulic oil to push the sleeve 500 to move upwards so as to abut the top of the sleeve 500 against the upper side wall 3420 of the first locking groove 340, so that the second ends 330 of the plurality of locking blocks 300 swing inwards and radially to lock the joint 100 and the base 200 in abutment and fixation in the second locking groove 350.

Specifically, to achieve the injection of hydraulic oil into the second oil fill port 410, the sleeve 500 is pushed downward. Referring to fig. 8, a first annular flange 1100 is disposed on a sidewall of the casing 400 close to the sleeve 500, a sealing ring is clamped in the first annular flange 1100 to enable the sleeve 500 to be connected with the first annular flange 1100 in a sealing manner, a second annular flange 1200 is disposed on a sidewall of the sleeve 500 close to the casing 400, and a sealing ring is clamped in the second annular flange 1200 to enable the sleeve 500 to be connected with the second annular flange 1200 in a sealing manner. The second oil injection cavity 420 is defined by the first annular flange 1100, the sleeve 500, the second annular flange 1200 and the housing 400. When the second oil injection port 410 injects hydraulic oil into the second oil injection chamber 420, the hydraulic oil cannot push the first annular flange 1100 to move, but pushes the second annular flange 1200, thereby moving the sleeve 500 downward.

To effect the injection of hydraulic fluid into the first fill port 220 pushes the sleeve 500 upward. Referring to fig. 9, a third annular flange 1300 is disposed on a side wall of the sleeve 500 close to the base 200, and a sealing ring is clamped in the third annular flange 1300, so that the third annular flange 1300 and the base 200 are connected in a sealing manner. The side wall of the base 200 close to the sleeve 500 is provided with a fourth annular flange 1400, and a sealing ring is clamped in the fourth annular flange 1400, so that the fourth annular flange 1400 is hermetically connected with the sleeve 500. The first oil injection cavity 230 is defined by the third annular flange 1300, the base 200, the fourth annular flange 1400 and the sleeve 500. When the first oil filling port 220 fills the first oil filling chamber 230 with hydraulic oil, the hydraulic oil cannot push the fourth annular flange 1400 and pushes the third annular flange 1300, so that the sleeve 500 moves upward. As described above, when the second oil inlet 410 is filled with oil, the sleeve 500 moves downward, so that the first oil filling chamber 230 is contracted, and the third annular flange 1300 pushes and pushes the hydraulic oil in the first oil filling chamber 230, so that the hydraulic oil is returned to the hydraulic pump or the hydraulic cylinder through the first oil inlet 220. Similarly, when the first oil inlet 220 is filled with oil, the sleeve 500 moves upward, so that the second oil filling chamber 420 is contracted, and the second annular flange 1200 pushes and pushes the hydraulic oil in the second oil filling chamber 420, so that the hydraulic oil is returned to the hydraulic pump or the hydraulic cylinder through the second oil inlet 410.

In some embodiments of the present application, to facilitate abutment of the joint 100 with the lock block 300. Referring to fig. 10, the outer wall of the connector 100 is provided with an abutting portion 120, and the abutting portion 120 may be integrally formed with the connector 100 for easy manufacturing. The upper surface of the abutment 120 is a tapered surface 1210, and the abutment 120 may be a cone. The second locking slot 350, as shown with reference to fig. 11, may include opposing first and second sidewalls 360 and 370. Referring to fig. 12, a portion of the abutment 120 is located in the second locking groove 350, and the first sidewall 360 abuts against the tapered surface 1210. An annular step-shaped structure 240 is formed on the base 200, and one side of the first ends 320 of the plurality of locking pieces 300 close to the base 200 is located in the annular step-shaped structure 240, so that the second side wall 370 is attached to the step surface 250 of the annular step-shaped structure 240.

In some embodiments of the present application, the mounting of the base 200 is facilitated. The base 200 shown with reference to fig. 13 may include a holder 260 and a sealing conduit 270. Referring to fig. 14, the fixing base 260 has a third channel 280, the first channel 110 is communicated with the third channel 280, and the third channel 280 receives the material from the first channel 110. A part of the fixing base 260 extends into the casing 400, the other part of the fixing base 260 is located outside the casing 400, the fixing base 260 is connected with the casing 400, and the example fixing base 260 is in threaded connection with the casing 400, so that the disassembly and the assembly are convenient. Meanwhile, in order to improve the sealing performance, a sealing ring is arranged between the fixing seat 260 and the shell 400. The movable chamber 600 is defined by the fixing base 260, the plurality of locking blocks 300 and the housing 400. Referring to fig. 15, the upper end of the fixing base 260 is provided with a mounting cavity 290 communicating with the third passage 280. The first oil filling port 220 is located on the outer wall of the fixing base 260. Referring to FIG. 14, the seal conduit 270 has a fourth passageway 2710, the fourth passageway 2710 communicating with the third passageway 280, the fourth passageway 2710 receiving material from the third passageway 280. A portion of the sealing guide 270 is located in the mounting cavity 290 and connected to the fixing seat 260, the example fixing seat 260 is screwed to the sealing guide 270, so as to facilitate detachment and installation, meanwhile, in order to improve the sealing between the fixing seat 260 and the sealing guide 270, a sealing ring is clamped on the inner wall of the mounting cavity 290, and another portion of the sealing guide 270 is located outside the mounting cavity 290 and abuts against the abutting portion 120. The annular step-shaped structure 240 is located on the outer wall of the sealing conduit 270, and in addition, for convenience of hoisting and transportation, hoisting holes are formed in the fixed seat 260 and the sealing conduit 270.

In some embodiments of the present application, collisions are avoided to facilitate installation of the joint 100. Referring to fig. 16, the outer wall of the joint 100 is provided with a guide 130. The guide portion 130 is located below the contact portion 120 and is integrally formed with the contact portion 120, and the guide portion 130 may be integrally formed with the joint 100, thereby facilitating processing and installation. The outer surface of the guide portion 130 is provided with a first guide tapered surface 1310. Referring to fig. 17, a first inner annular guiding tapered surface 1330 is formed on an inner wall of the fourth channel 2710, the first inner annular guiding tapered surface 1330 is engaged with the first guiding tapered surface 1310, the connector 100 is inserted into the receiving cavity 310, and the first guiding tapered surface 1310 and the first inner annular guiding tapered surface 1330 play a guiding role to facilitate stable insertion of the connector 100 into the receiving cavity 310.

Furthermore, the outer surface of the guide portion 130 may be provided with a second guide tapered surface 1320, the second guide tapered surface 1320 being located below the first guide tapered surface 1310, the second guide tapered surface 1320 being contiguous with the first guide tapered surface 1310. A second inner annular guiding cone 1340 is arranged on the inner wall of the fourth channel 2710, the second inner annular guiding cone 1340 is positioned below the first inner annular guiding cone 1330, the second inner annular guiding cone 1340 is connected with the first inner annular guiding cone 1330, and the second inner annular guiding cone 1340 is attached with the second guiding cone 1320. The second guiding tapered surface 1320 and the second inner annular guiding tapered surface 1340 further improve the stability of the installation of the connector 100 and prevent collision.

In some embodiments of the present application, to facilitate insertion of fitting 100 into housing 400, the hydraulic connector illustrated with reference to fig. 18 further includes a lead-in fitting 1000. The lead-in connector 1000 is installed at one end of the housing 400 far away from the base 200, the inner wall of the lead-in connector 1000 is provided with a third guiding conical surface 1350, and the third guiding conical surface 1350 plays a role in installation and guidance, so that the connector 100 is prevented from colliding with the housing 400 and the lead-in connector 1000.

In some embodiments of the present application, to facilitate viewing of the direction of movement of the sleeve 500, the hydraulic connector shown with reference to fig. 19 may further include an indicator lever 700. One end of the indication rod 700 is connected with the sleeve 500, and the other end of the indication rod 700 passes through the fixing seat 260 and extends outwards, and the indication rod 700 is in sliding fit with the fixing seat 260. When the specific sleeve 500 is moved upward, the indication rod 700 is inserted into the fixing base 260. When the sleeve 500 moves downward, the indication rod 700 extends out of the fixing base 260.

In some embodiments of the present application, a stable connection state of the hydraulic connector is facilitated. The hydraulic connector shown with reference to fig. 20 may further include a safety assembly, which may include a safety pin 810, a rotating shaft 820, a handle 830, and a torsion spring 840. One end of the safety pin 810 is positioned in the activity chamber 600 as shown with reference to fig. 21. The housing 400 is provided with a through hole 850 communicating with the movable chamber 600, and the other end of the safety pin 810 extends to the outside of the housing 400 through the through hole 850. The safety pin 810 serves to prevent the sleeve 500 from sliding in the movable chamber 600. The rotation shaft 820 penetrates the other end of the shear pin 810 and is connected to the shear pin 810, and both ends of the rotation shaft 820 are rotatably connected to the housing 400 through bearing seats. One end of the handle 830 is mounted to the rotating shaft 820. The torsion spring 840 is sleeved outside the rotating shaft 820, one end of the torsion spring 840 abuts against the outer wall of the housing 400, and the other end of the torsion spring 840 abuts against the handle 830. The torsion spring 840 is used to extend the end of the shear pin 810 near the housing 400 into the active chamber 600 in the reset state. Referring to fig. 22, when an external force is applied to the handle 830 in the direction of the arrow, the safety pin 810 slides out of the housing 400 through the through-hole 850. When the external force is removed, the safety pin 810 slides into the housing 400 and is located in the movable chamber 600 under the elastic force of the torsion spring 840, and the lower end of the sleeve 500 abuts against the safety pin 810.

Based on the above, the insertion through-hole 850 and the protrusion through-hole 850 of the safety pin 810 are conveniently controlled. Referring to fig. 23, a third oil injection cavity 2660 is disposed in the fixing base 260, one end of the third oil injection cavity 2660 is communicated with the outside, and the third oil injection cavity 2660 is communicated with a third oil injection hole 2670 of the fixing base 260. The hydraulic connector further includes a piston rod 910, a piston head 920, a blocking head 930, and a compression spring 940. Piston rod 910 is mounted in third oil injection cavity 2660 with one end of piston rod 910 extending outwardly beyond third oil injection cavity 2660. The handle 830 is disposed adjacent the plunger rod 910. Piston head 920 is installed in third oil injection cavity 2660 and is in sliding fit with the inner wall of third oil injection cavity 2660, and the other end of piston rod 910 is connected to piston head 920. A blocking head 930 is mounted on the housing 400, and the blocking head 930 is used for blocking the third oil injection cavity 2660. One end of the plunger rod 910 extends outwardly through the blocking head 930, and the plunger rod 910 is slidably engaged with the blocking head 930. The compression spring 940 is sleeved outside the piston rod 910, and the compression spring 940 is positioned between the piston head 920 and the plugging head 930. Specifically, hydraulic oil is injected into the third oil injection port 2670, the hydraulic oil enters the third oil injection cavity 2660, the hydraulic oil pushes the piston head 920 and the piston rod 910 in the third oil injection cavity 2660 to move outwards, and the compression spring 940 is in a compressed state, so that the length of the piston rod 910 extending out of the third oil injection cavity 2660 is continuously increased and abuts against the handle 830, and when the piston rod 910 continues to extend outwards, the piston rod 910 abuts against the handle 830 and pushes the handle 830 to deflect, so that the safety pin 810 slides out of the housing 400 through the through hole 850, and the third oil injection port 2670 is closed through the valve. When the valve is opened, the hydraulic oil in the third oil filling chamber 2660 is returned to the hydraulic pump or the hydraulic cylinder through the third oil filling port 2670. The valve may be a one-way valve or a solenoid valve, etc.

Based on the above, to further explain the state of the hydraulic connector, the hydraulic connector connection state is shown with reference to fig. 24 and 25. A portion of the abutment 120 on the fitting 100 abuts and secures a portion of the sealing conduit 270 within the second locking groove 350. The hydraulic connector disconnected state is shown with reference to fig. 26 and 27. The second ends 330 of the plurality of locking pieces 300 swing radially outward. The safety pin 810 is located outside the housing 400. Thereby unlocking the securement of the fitting 100 to the sealing conduit 270.

Specifically, the hydraulic connector connection operation process is as follows: the shear pin 810 is first slid out of the movable chamber 600 through the through hole 850 by injecting hydraulic oil into the third oil injection port 2670. Then, the lower end of the adapter 100 is inserted into the sealed catheter through the introduction adapter 1000 and the housing chamber 310 in order, and the abutment portion 120 and the guide portion 130 on the adapter 100 are positioned in the housing chamber 310. Then, hydraulic oil is injected into the first oil injection hole 220, the hydraulic oil enters the first oil injection cavity 230, the hydraulic oil generates thrust along with the continuous injection of the hydraulic oil into the first oil injection cavity 230, the sleeve 500 is pushed to move upwards, and the top of the sleeve 500 pushes the second ends 330 of the plurality of locking blocks 300 to swing inwards due to the fact that the top of the sleeve 500 is abutted to the upper side wall 3420 of the first locking groove 340, and therefore the abutting portion 120 on the joint 100 is located in the second locking groove 350. In this way, the first sidewall 360 of the second locking groove 350 is engaged with the tapered surface of the upper surface of the abutting portion 120, and the safety pin 810 is inserted into the housing 400 through the through hole 850, so as to ensure that the locking block 300 locks and fixes the abutting portion 120 on the joint 100 and the sealing tube.

Specifically, the hydraulic connector disconnection operation process comprises the following steps: the shear pin 810 is slid out of the active chamber 600. By injecting hydraulic oil into the second oil injection port 410, the hydraulic oil enters the second oil injection cavity 420, and as the hydraulic oil is continuously injected into the second oil injection cavity 420, the hydraulic oil generates a thrust force to push the sleeve 500 to move downward, so that the annular protrusion 510 on the sleeve 500 also moves downward to abut the annular protrusion 510 against the lower side wall 3410 of the first locking groove 340, and the second ends 330 of the plurality of locking blocks 300 swing outward and radially to unlock the joint 100 from abutting and fixing with the base 200.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A hydraulic connector, comprising:

a fitting having a first passageway;

the base is used for being abutted against the joint in a connection state of the hydraulic connector and is provided with a second channel, the first channel is communicated with the second channel, and a first oil filling opening is formed in the base;

the locking blocks are annularly distributed and surrounded to form an accommodating cavity, the locking blocks are provided with first ends close to the base and second ends far away from the base, and one part of the base is abutted with the first ends of the locking blocks and is positioned in the accommodating cavity;

the shell is sleeved outside the plurality of locking blocks and connected with the base, and a second oil filling port is formed in the shell; and

the second oil filling port and the first oil filling port are respectively positioned on two opposite sides of the sleeve; the sleeve is used for receiving the hydraulic oil that comes from first oiling mouth, with a plurality of the second end butt of locking piece, the drive is a plurality of the second end of locking piece with be located hold in the chamber the partly looks butt of joint, in order to lock the base with the relative position who connects, the sleeve still is used for receiving the hydraulic oil that comes from second oiling mouth, with a plurality of the first end butt of locking piece, the drive is a plurality of the second end of locking piece with connect the separation.

2. The hydraulic connector of claim 1, wherein the plurality of locking pieces have a first locking groove and a second locking groove which are opposite to each other, the second locking groove is disposed near the joint and the base, the second locking groove is communicated with the accommodating cavity, a portion of the joint and a portion of the base are abutted and fixed in the second locking groove, and a movable cavity is defined between the plurality of locking pieces and the base and between the plurality of locking pieces and the housing;

the sleeve is located in the movable cavity, an annular protrusion extending along the radial direction is arranged on the inner wall of the sleeve and located in the first locking groove, a second oil injection cavity is formed between the sleeve and the shell in an enclosing mode, the second oil injection hole is communicated with the second oil injection cavity, and the second oil injection hole is used for injecting hydraulic oil to push the sleeve to move downwards so as to enable the annular protrusion to be abutted against the lower side wall of the first locking groove and enable the second ends of the locking blocks to swing outwards along the radial direction to unlock the joint and the base to be abutted and fixed; the sleeve with enclose between the base and establish and be formed with first oiling chamber, first oiling mouth with first oiling chamber is linked together, first oiling mouth is used for injecting hydraulic oil to promote sleeve rebound, with telescopic top with the side wall butt goes up of first locking groove makes a plurality ofly the second end of locking piece is inwards radially swung in order to lock the joint with the base is in the butt is fixed in the second locking inslot.

3. The hydraulic connector of claim 2, wherein an abutting portion is disposed on an outer wall of the connector, an upper surface of the abutting portion is a conical surface, the second locking groove includes a first side wall and a second side wall that are opposite to each other, a portion of the abutting portion is located in the second locking groove, the first side wall is attached to the conical surface, an annular step-shaped structure is formed on the base, and the second side wall is attached to a step surface of the annular step-shaped structure.

4. The hydraulic connector of claim 3, wherein the base comprises:

the fixing seat is provided with a third channel, the first channel is communicated with the third channel, one part of the fixing seat extends into the shell, the other part of the fixing seat is positioned outside the shell, the fixing seat is connected with the shell, the movable cavity is formed by enclosing the fixing seat, the plurality of locking blocks and the shell, the upper end of the fixing seat is provided with an installation cavity communicated with the third channel, and the first oil filling port is positioned on the outer wall of the fixing seat; and

the sealing guide pipe is provided with a fourth channel, the fourth channel is communicated with the third channel, one part of the sealing guide pipe is positioned in the installation cavity and is connected with the fixed seat, the other part of the sealing guide pipe is positioned outside the installation cavity and is abutted against the abutting part, and the annular step-shaped structure is positioned on the outer wall of the sealing guide pipe.

5. The hydraulic connector according to claim 4, wherein a guide portion is provided on an outer wall of the joint, the guide portion is located below the abutting portion and is integrally formed with the abutting portion, a first guide conical surface is provided on an outer surface of the guide portion, and a first inner annular guide conical surface is provided on an inner wall of the fourth passage, and the first inner annular guide conical surface is attached to the first guide conical surface.

6. The hydraulic connector of claim 5, wherein the outer surface of the guide portion is provided with a second guiding tapered surface, the second guiding tapered surface is located below the first guiding tapered surface, the second guiding tapered surface is connected with the first guiding tapered surface, the inner wall of the fourth channel is provided with a second inner annular guiding tapered surface, the second inner annular guiding tapered surface is located below the first inner annular guiding tapered surface, the second inner annular guiding tapered surface is connected with the first inner annular guiding tapered surface, and the second inner annular guiding tapered surface is attached with the second guiding tapered surface.

7. The hydraulic connector of claim 6, further comprising:

the leading-in connector is installed at one end, far away from the base, of the shell, and a third guiding conical surface is arranged on the inner wall of the leading-in connector.

8. The hydraulic connector of claim 7, further comprising:

and one end of the indicating rod is connected with the sleeve, the other end of the indicating rod penetrates through the fixed seat to extend outwards, and the indicating rod is in sliding fit with the fixed seat.

9. A hydraulic connector as claimed in any one of claims 4 to 8, further comprising:

one end of the safety pin is positioned in the movable cavity, the shell is provided with a through hole communicated with the movable cavity, the other end of the safety pin extends out of the shell through the through hole, and the safety pin is used for preventing the sleeve from sliding in the movable cavity;

the rotating shaft penetrates through the other end of the safety pin and is connected with the safety pin, and two ends of the rotating shaft are rotatably connected with the shell;

a handle, one end of which is arranged on the rotating shaft; and

the torsion spring is sleeved outside the rotating shaft, one end of the torsion spring is abutted to the outer wall of the shell, the other end of the torsion spring is abutted to the handle, and the torsion spring is used for enabling one end, close to the shell, of the safety pin to extend into the movable cavity in a reset state.

10. The hydraulic connector according to claim 9, wherein a third oil injection cavity is formed in the fixed seat, one end of the third oil injection cavity is communicated with the outside, and the third oil injection cavity is communicated with a third oil injection port in the fixed seat; the hydraulic connector further includes:

the piston rod is arranged in the third oil injection cavity, one end of the piston rod extends out of the third oil injection cavity and extends outwards, and the handle is arranged close to the piston rod;

the piston head is arranged in the third oil injection cavity and is in sliding fit with the inner wall of the third oil injection cavity, and the other end of the piston rod is connected with the piston head;

the blocking head is arranged on the shell and used for blocking the third oil injection cavity, one end of the piston rod penetrates through the blocking head to extend outwards, and the piston rod is in sliding fit with the blocking head; and

and the compression spring is sleeved outside the piston rod and is positioned between the piston head and the plugging head.

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