CN113503408B - Connecting method of high-pressure manifold connecting mechanism - Google Patents
Connecting method of high-pressure manifold connecting mechanism Download PDFInfo
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- CN113503408B CN113503408B CN202110776358.3A CN202110776358A CN113503408B CN 113503408 B CN113503408 B CN 113503408B CN 202110776358 A CN202110776358 A CN 202110776358A CN 113503408 B CN113503408 B CN 113503408B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/036—Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a high-pressure manifold connecting mechanism, which comprises: the first flange is connected to the first pipe body; the second flange is connected to the second pipe body; the outer peripheral surfaces of the first pipe body and the second pipe body are sleeved with clamping rings, and the peripheries of the clamping rings are provided with annular clamping grooves; the connecting assembly comprises a connecting arm, a first locking assembly and a second locking assembly; the first locking component is arranged on the clamping ring, and the tail part of the first locking component can extend into the annular clamping groove; the connecting arm is provided with a locking hole; the second locking assembly comprises a driving assembly and a jacking tooth; one end of the second pipe body is connected to the first pipe body through the first locking assembly, and the other end of the second pipe body can be connected to other pipe bodies after the first locking assembly is locked, so that the problem that bolts of a flange need to be pre-tightened when a traditional flange is used for connection, the bolts are tightened after repeated debugging is avoided, and the installation difficulty is reduced; first locking Assembly and second locking Assembly all need not be with the help of threaded connection to make connecting speed faster, promote connection efficiency.
Description
Technical Field
The invention relates to the technical field of high-pressure manifolds, in particular to a connecting method of a high-pressure manifold connecting mechanism.
Background
The conventional high-pressure equipment or high-pressure pipes are generally connected together through a union or a flange to form a high-pressure manifold (the high pressure generally refers to 35-70 MPa); the high-pressure manifold has the main functions of transferring drilling fluid into a shaft, so that rock breaking, drill bit cooling and rock debris carrying are realized, and the aim of drilling is fulfilled; according to statistics, the union of a typical land 7000m drilling machine is about 40, and the flange connection is about 30; one conventional fracture well site contained 20 fracturing trucks with 40 interfaces between the manifold and the fracturing truck and 6 interfaces between the manifold skids. The average operation time of union connection is calculated according to 10 minutes, the average operation time of flange connection is calculated according to 30 minutes, and the total operation time of a set of 7000m drilling machine high-pressure manifold reaches 22 hours; the total connection time of the fracturing well site high-pressure manifold reaches over 8 hours, and the time is long.
Chinese patent with application number CN201910185802.7 discloses a knob type quick connection device for a high-pressure manifold, which comprises a tubular female joint, a tubular male joint and a locking mechanism, wherein the female joint is sleeved on the male joint, the locking mechanism is arranged in the middle of the female joint, a driving handle is fixed on the outer wall of the locking mechanism, and the female joint and the male joint are locked or disengaged by rotating the locking mechanism through the driving handle. The knob type quick connection device for the high-pressure manifold has the advantages of simple structure, quick connection and good sealing performance, and is suitable for the operation of high-pressure manifolds such as a drilling fluid circulating manifold, a well cementation manifold, a throttling kill manifold, a fracturing manifold and the like; in the use process of the scheme, the pipe A is required to be connected with the female joint, and the pipe B is connected with the male joint, so that the efficiency is reduced.
Disclosure of Invention
The invention mainly solves the technical problems that: provided is a method for connecting a high-pressure manifold connection mechanism, which has high connection stability and is easy to disassemble and connect.
In order to solve the main technical problems, the following technical scheme is adopted:
a high pressure manifold connection comprising: the first flange is connected to the end face of the free end of the first pipe body and is used for being connected with the second pipe body; a plurality of first blind holes are formed in the end face, away from the second pipe body, of the first flange; the second flange is connected to the end face of the free end of the second pipe body, and second blind holes corresponding to the first blind holes one to one are formed in the end face of the second flange, which is far away from the first pipe body; a sealing ring is arranged on the contact surface of the first flange and the second flange; the outer peripheral surfaces of the first pipe body and the second pipe body are also sleeved with a clamping ring, and the periphery of the clamping ring is provided with an annular clamping groove; the connecting assembly is uniformly distributed along the annular clamping grooves, is used for connecting the first pipe body and the second pipe body and comprises a connecting arm, a first locking assembly and a second locking assembly; the first locking assembly is arranged on the clamping ring, and the tail part of the first locking assembly can extend into the annular clamping groove; the connecting arm is n-shaped and faces the first pipe body, and locking holes are formed in the leg portion of the connecting arm; when the two leg parts of the connecting arm are respectively inserted into the annular clamping grooves of the two clamping rings, the first locking component is inserted into the locking hole so as to press the first flange against the second flange; the second locking assembly is connected to the connecting arm; the second locking assembly comprises a driving assembly and a jacking tooth; the two jacking teeth are respectively positioned on the outer sides of the first flange and the second flange; under the action of the driving assembly, one of the tightening teeth is inserted into the first blind hole, and the other tightening tooth is inserted into the second blind hole, so that the first flange and the second flange are locked.
Preferably, the jacking teeth are L-shaped; when one of the jacking teeth is inserted into the first blind hole in place, the side wall of the jacking tooth abuts against the end face of the first flange; when the other jacking tooth is inserted into the second blind hole in place, the side wall of the jacking tooth abuts against the end face of the second flange.
Preferably, the driving assembly comprises a shell, a screw rod, a speed increasing box and a power wheel handle; the two ends of the screw rod are opposite in rotating direction and are connected to the inner side of the connecting arm; the speed increasing box is longitudinally penetrated through a connecting arm, a driving shaft of the speed increasing box is positioned on the outer side of the connecting arm and is connected with a power wheel handle, a driven shaft of the speed increasing box is positioned on the inner side of the connecting arm and is connected with a screw rod, and a through hole capable of enabling the jacking teeth to slide is formed in the outer side of the screw rod and faces the side of the first pipe body by the outer shell cover; the two jacking teeth are arranged on a nut of the screw rod; and rotating the power wheel handle, wherein one of the tightening teeth is inserted into the first blind hole, and the other tightening tooth is inserted into the second blind hole.
Preferably, the first blind hole and the second blind hole are distributed in a staggered manner in the radial direction of the first pipe body.
Preferably, the snap ring is provided with a sliding cavity extending along the thickness direction of the snap ring, the first locking component is connected in the sliding cavity in a sliding manner, and the tail part of the first locking component can extend out of the sliding cavity and be inserted into the locking hole; the first locking assembly comprises a locking cylinder, a baffle ring, an outer return spring and a locking handle; the baffle ring is sleeved on the periphery of the locking cylinder and is close to the tail part of the locking cylinder; the locking handle is positioned outside the clamping ring and connected with the head of the locking barrel; one end of the outer return spring is connected with the baffle ring, and the other end of the outer return spring is connected with the inner wall of the sliding cavity; and under the self elasticity of the outer return spring, the locking cylinder is inserted into the locking hole.
Preferably, a third locking assembly is further installed in the locking cylinder; a first through hole extending along the radial direction of the clamping ring is formed in the side wall of the locking hole; a second through hole matched with the first through hole is formed in the locking barrel; the third locking component can be inserted into the first through hole in a telescopic mode.
Preferably, the third locking component is slidably connected in a step cavity in the locking cylinder; the third locking assembly comprises a locking inner rod, a wedge-shaped block, a pulling block, an inner return spring and a bullet; one end of the locking inner rod is connected with the wedge-shaped block, and the other end of the locking inner rod extends out of the locking cylinder and is connected with the pull block; the inner return spring is sleeved outside the locking inner rod and is connected with the wedge block and the step cavity; the warhead is abutted against the inclined surface of the wedge-shaped block and can extend into or separate from the first through hole from the second through hole in the transverse translation process of the wedge-shaped block; and a bullet return spring is also connected between the bullet and the inner wall of the locking barrel.
Preferably, the connecting assembly is further provided with a cushion block for mounting and dismounting; the cushion block is shaped like a Chinese character 'Jiong'; when the pull block and the locking handle are pulled outwards to the right position, one inserting leg of the cushion block is inserted between the pull block and the locking handle, and the other inserting leg is inserted between the locking handle and the clamping ring.
A connecting method of a high-pressure manifold connecting mechanism comprises the following steps:
s1: the pulling block is pulled outwards to enable the warhead to retract into the locking cylinder, and meanwhile, the locking handle is pulled outwards to enable the tail of the locking cylinder to be separated from the locking hole; when the pull block and the locking handle are pulled outwards to be in place, the tail part of the locking barrel is kept in the sliding cavity by using the cushion block, and the head part of the bullet is positioned in the first through hole;
s2: installing a sealing ring between a first flange and a second flange, clamping a connecting arm in an annular clamping groove, enabling a locking hole to be opposite to a locking cylinder, drawing away a cushion block, inserting the locking cylinder into the locking hole under the action of an outer return spring, enabling a wedge block to translate towards the tail of the locking cylinder under the action of an inner return spring, and enabling a warhead to move upwards until the head of the warhead is inserted into a first through hole in the translation process;
s3: after the connecting arm at the other end of the second pipe body is installed, the power wheel handle is rotated, and under the action of the speed increasing box, the nut of the screw rod drives the jacking teeth to move towards the first flange and the second flange until the jacking teeth are inserted into the first blind hole and the second blind hole.
Compared with the prior art, the connecting device applied to the high-pressure manifold has the following advantages:
(1) the connecting assembly comprises a first locking assembly and a second locking assembly; first locking Assembly connects the one end of second body on first body, behind first locking Assembly locking, can connect the other end of second body on other bodys, when having avoided utilizing traditional flange joint, in order to guarantee that two tip of second body are all effectively connected, need with the bolt pretension of flange, screw up again after debugging repeatedly to the installation degree of difficulty has been reduced.
(2) First locking Assembly and second locking Assembly all need not be with the help of threaded connection to make the connection rate faster, promoted connection efficiency.
(3) The connecting assembly further comprises a third locking assembly, and the third locking assembly further ensures the connecting strength of the clamping ring and the connecting arm; the dismantlement in-process, the outfit of cushion can make the connection of first body and second body can single independent operation, practices thrift the labour, and the existence of cushion can be convenient for carry out the inspection after the later stage installation is accomplished simultaneously to ensure that first body and second body are connected inerrably, avoid the potential safety hazard.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some examples of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic view of the overall structure;
FIG. 2 is a partially enlarged view of FIG. 1;
FIG. 3 is a schematic view of the installation of the connection assembly;
fig. 4 is a schematic structural diagram of the spacer.
In the figure: 100 is a first pipe body, 200 is a second pipe body, 1 is a first flange, 101 is a first blind hole, 2 is a second flange, 201 is a second blind hole, 3 is a snap ring, 31 is an annular clamping groove, 32 is a sliding cavity, 4 is a sealing ring, 5 is a connecting arm, 51 is a locking hole, 52 is a first through hole, 53 is a second through hole, 6 is a first locking assembly, 61 is a locking cylinder, 62 is a retaining ring, 63 is an outer return spring, 64 is a locking handle, 7 is a second locking assembly, 71 is a puller tooth, 72 is a shell, 73 is a lead screw, 74 is a speed increasing box, 75 is a power wheel handle, 8 is a third locking assembly, 81 is a locking inner rod, 82 is a wedge block, 83 is a pulling block, 84 is an inner return spring, 85 is a bullet, 86 is a bullet return spring, and 9 is a cushion block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions.
The first embodiment,
Referring to fig. 1-3, a high pressure manifold connection mechanism includes a first flange 1, a second flange 2, and a connection assembly.
A first flange 1 welded to a free end surface of the first pipe 100 for connecting with the second pipe 200; a plurality of first blind holes 101 are formed in the end face, away from the second pipe body 200, of the first flange 1; the number of first blind holes 101 is typically 4-6.
The second flange 2 is welded on the end face of the free end of the second pipe body 200, and the end face, away from the first pipe body 100, of the second flange 2 is provided with second blind holes 201 corresponding to the first blind holes 101 one to one, namely the number of the first blind holes 101 is the same as that of the second blind holes 201, and the relative positions of the first blind holes 101 and the second blind holes 201 are the same; the first blind hole 101 and the second blind hole 201 are distributed in a staggered manner in the radial direction of the first pipe body 100; a sealing ring 4 is arranged on the contact surface of the first flange 1 and the second flange 2, and the installation of the sealing ring 4 is only required by referring to the prior art; a clamping ring 3 is further sleeved on the outer peripheral surfaces of the first pipe body 100 and the second pipe body 200, and an annular clamping groove 31 is formed in the outer periphery of the clamping ring 3;
the connecting components are uniformly distributed along the annular clamping grooves 31 and are used for connecting the first pipe body 100 and the second pipe body 200, and the number of the connecting components is consistent with that of the first blind holes 101 or the second blind holes 201; the connecting assembly comprises a connecting arm 5, a first locking assembly 6 and a second locking assembly 7; the first locking component 6 is arranged on the end face, away from the first flange 1, of the clamping ring 3, and the tail part of the first locking component can extend into the annular clamping groove 31; the connecting arm 5 is n-shaped facing the first pipe 100, and a locking hole 51 is formed at a leg of the connecting arm 5; when two shank of linking arm 5 insert respectively in the ring groove 31 of two snap rings 3, first locking subassembly 6 inserts in the locking hole 51 to support first flange 1 on second flange 2, the setting of first locking subassembly 6 can carry on spacingly to first body 100 and second body 200, guarantees the leakproofness that first body 100 and second body 200 are connected simultaneously.
The clamping ring 3 is provided with a sliding cavity 32 extending along the thickness direction of the clamping ring, the tail part of the sliding cavity 32 is communicated with the annular clamping groove 31, the first locking component 6 is connected in the sliding cavity 32 in a sliding mode, and the tail part of the first locking component can extend out of the sliding cavity 32 and be inserted into the locking hole 51; the first locking assembly 6 comprises a locking cylinder 61, a baffle ring 62, an outer return spring 63 and a locking handle 64; the baffle ring 62 is sleeved on the periphery of the locking cylinder 61 and is close to the tail part of the locking cylinder 61, and the baffle ring 62 can slide along the sliding cavity 32; the locking handle 64 is positioned outside the clamping ring 3 and connected with the head of the locking cylinder 61; one end of the outer return spring 63 is connected with the baffle ring 62, the other end of the outer return spring is connected with the inner wall of the sliding cavity 32, and the outer return spring 63 is sleeved on the outer side of the locking through hole; under the elasticity of the outer return spring 63, the locking cylinder 61 is inserted into the locking hole 51, and after the locking handle 64 is pulled outwards, the tail part of the locking cylinder 61 is separated from the locking hole 51, and the connecting arm 5 can be taken out of the annular clamping groove 31.
The second locking component 7 is connected to the connecting arm 5; the second locking assembly 7 comprises a driving assembly and a jacking tooth 71; the two jacking teeth 71 are respectively positioned at the outer sides of the first flange 1 and the second flange 2; under the action of the driving assembly, one of the tightening teeth 71 is inserted into the first blind hole 101, the other tightening tooth 71 is inserted into the second blind hole 201, so that the first flange 1 and the second flange 2 are locked, and the arrangement of the second locking assembly 7 can further improve the sealing performance of the connection of the first flange 1 and the second flange 2; the jacking teeth 71 are L-shaped; when one of the tightening teeth 71 is inserted into the first blind hole 101, the side wall of the tightening tooth 71 abuts against the end surface of the first flange 1; when another pushing tooth 71 is inserted into the second blind hole 201, the side wall of the pushing tooth 71 abuts against the end surface of the second flange 2.
The driving assembly comprises a shell 72, a screw rod 73, a speed increasing box 74 and a power wheel handle 75; the two ends of the screw rod 73 are opposite in rotating direction and are rotatably connected to the inner side of the connecting arm 5 through a bracket; the speed increasing box 74 longitudinally penetrates through the connecting arm 5, namely the speed increasing box 74 penetrates through the connecting arm 5 along the radial direction of the first flange 1, the speed increasing box 74 is fixedly connected with an outer box body of the connecting arm 5, a driving shaft of the speed increasing box 74 is positioned on the outer side of the connecting arm 5 and is connected with the power wheel handle 75, a driven shaft of the speed increasing box 74 is positioned on the inner side of the connecting arm 5 and is connected with the screw rod 73, the shell 72 covers the outer side of the screw rod 73 and is provided with a through hole capable of enabling the tightening teeth 71 to slide towards the side of the first pipe body 100, and the shell 72 is arranged to prevent the screw rod 73 from rusting; the two tightening teeth 71 are arranged on a nut of the screw rod 73; the power wheel handle 75 is rotated, one of the tightening teeth 71 is inserted into the first blind hole 101, the other tightening tooth 71 is inserted into the second blind hole 201, and under the arrangement of the speed increasing box 74, the tightening teeth 71 can be quickly inserted into the first blind hole 101 or the second blind hole 201; the matching of the jacking teeth 71 with the first blind holes 101 and the second blind holes 201 increases the contact area of the jacking teeth 71 with the first flange 1 and the second flange 2; the first locking assembly 6 is arranged to enable the first pipe 100 and the second pipe 200 to be quickly connected and ensure the connection effect; the arrangement of the second locking assembly 7 can further improve the connection stability and the sealing performance of the first pipe 100 and the second pipe 200.
Example II,
Referring to fig. 1-3, the difference between the second embodiment and the first embodiment is that on the basis of the first embodiment, a third locking assembly 8 is further installed in the locking cylinder 61; a first through hole 52 extending along the radial direction of the snap ring 3 is formed on the side wall of the locking hole 51; a second through hole 53 matched with the first through hole 52 is formed in the locking cylinder 61; the third locking assembly 8 is telescopically inserted into the first passage hole 52.
The third locking component 8 is connected in a sliding way in a step cavity in the locking cylinder 61; the third locking assembly comprises a locking inner rod 81, a wedge block 82, a pull block 83, an inner return spring 84 and a bullet 85; one end of the locking inner rod 81 is connected with the wedge-shaped block 82, and the other end of the locking inner rod extends out of the locking cylinder 61 and is connected with the pull block 83; the inner return spring 84 is sleeved outside the locking inner rod 81 and connected with the wedge block 82 and the stepped cavity; the warhead 85 abuts against the inclined surface of the wedge block 82, and can extend into the first through hole 52 from the second through hole 53 or retract into the second through hole 53 from the first through hole 52 in the transverse translation process of the wedge block 82; still be connected with warhead return spring 86 between warhead 85 and the locking section of thick bamboo 61 inner wall, under warhead return spring 86's exclusive action, in the second hole 53 is walked in to the head retraction of warhead 85, the joint strength of linking arm 5 and snap ring 3 can further be guaranteed in setting up of third locking Assembly 8.
Example III,
Referring to fig. 1-4, the difference between the third embodiment and the second embodiment is that on the basis of keeping the second embodiment, the connecting assembly is further provided with a cushion block 9 for mounting and dismounting; the cushion block 9 is shaped like Jiong; when the pull block 83 and the locking handle 64 are pulled outwards to the right position, one insert leg of the cushion block 9 is inserted between the pull block 83 and the locking handle 64, the other insert leg is inserted between the locking handle 64 and the snap ring 3, and when the pull block 83 moves outwards to the right position, the head of the bullet 85 is retracted into the second through hole 53; when the locking handle 64 is moved outward into position, the tail of the locking barrel 61 is disengaged from the locking aperture 51.
The working process of the invention is as follows: the pulling block 83 is pulled outwards to retract the bullet 85 into the locking cylinder 61, and the locking handle 64 is pulled outwards to separate the tail part of the locking cylinder 61 from the locking hole 51; when the pulling block 83 and the locking handle 64 are pulled outwards to the proper position, the tail part of the locking cylinder 61 is kept in the sliding cavity 32 by the cushion block 9, and the head part of the bullet 85 is positioned in the first through hole 52; installing a sealing ring 4 between a first flange 1 and a second flange 2, clamping a connecting arm 5 in annular clamping grooves 31 of two clamping rings 3, enabling a locking hole 51 to be opposite to a locking cylinder 61, drawing away a cushion block 9, inserting the locking cylinder 61 into the locking hole 51 under the action of an outer return spring 63, enabling a wedge block 82 to translate towards the tail of the locking cylinder 61 under the action of an inner return spring 84, and enabling a bullet 85 to ascend in the translation process until the head of the bullet 85 is inserted into a first penetrating hole 52; after the connecting arm 5 at the other end of the second tube 200 is also installed, the power wheel handle 75 is rotated, and under the action of the speed increasing box 74, the nut of the screw rod 73 drives the tightening tooth 71 to move towards the first flange 1 and the second flange 2 until the tightening tooth 71 is inserted into the first blind hole 101 and the second blind hole 201; when disassembly is required, the operation is reversed.
It should be noted that, in the present invention, "upper, lower, left, right, inner and outer" are defined by taking the relative position of the components in the drawings as a reference, which is only for clarity and convenience of describing the technical solution, and it should be understood that the application of the directional terms does not limit the protection scope of the present application.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (4)
1. A connecting method of a high-pressure manifold connecting mechanism is characterized by comprising the following steps: the following connection mechanism is employed, including:
the first flange is connected to the end face of the free end of the first pipe body and is used for being connected with the second pipe body; a plurality of first blind holes are formed in the end face, away from the second pipe body, of the first flange;
the second flange is connected to the end face of the free end of the second pipe body, and second blind holes corresponding to the first blind holes one to one are formed in the end face of the second flange, which is far away from the first pipe body; a sealing ring is arranged on the contact surface of the first flange and the second flange; the outer peripheral surfaces of the first pipe body and the second pipe body are also sleeved with a clamping ring, and the periphery of the clamping ring is provided with an annular clamping groove;
the connecting assembly is uniformly distributed along the annular clamping grooves, is used for connecting the first pipe body and the second pipe body and comprises a connecting arm, a first locking assembly and a second locking assembly; the first locking assembly is arranged on the clamping ring, and the tail part of the first locking assembly can extend into the annular clamping groove; the connecting arm is n-shaped and faces the first pipe body, and locking holes are formed in the leg portion of the connecting arm; when the two leg parts of the connecting arm are respectively inserted into the annular clamping grooves of the two clamping rings, the first locking component is inserted into the locking hole so as to press the first flange against the second flange; the second locking assembly is connected to the connecting arm; the second locking assembly comprises a driving assembly and a jacking tooth; the two jacking teeth are respectively positioned on the outer sides of the first flange and the second flange; under the action of the driving assembly, one of the tightening teeth is inserted into the first blind hole, and the other tightening tooth is inserted into the second blind hole so as to lock the first flange and the second flange;
the clamping ring is provided with a sliding cavity extending along the thickness direction of the clamping ring, the first locking component is connected in the sliding cavity in a sliding mode, and the tail portion of the first locking component can extend out of the sliding cavity and be inserted into the locking hole; the first locking assembly comprises a locking cylinder, a baffle ring, an outer return spring and a locking handle; the baffle ring is sleeved on the periphery of the locking cylinder and is close to the tail part of the locking cylinder; the locking handle is positioned outside the clamping ring and connected with the head of the locking barrel; one end of the outer return spring is connected with the baffle ring, and the other end of the outer return spring is connected with the inner wall of the sliding cavity; the locking cylinder is inserted into the locking hole under the self elasticity of the outer return spring;
a third locking assembly is further installed in the locking cylinder; a first through hole extending along the radial direction of the clamping ring is formed in the side wall of the locking hole; a second through hole matched with the first through hole is formed in the locking barrel; the third locking component is inserted into the first through hole in a telescopic mode;
the third locking assembly is connected in a stepped cavity in the locking cylinder in a sliding manner; the third locking assembly comprises a locking inner rod, a wedge-shaped block, a pulling block, an inner return spring and a bullet; one end of the locking inner rod is connected with the wedge-shaped block, and the other end of the locking inner rod extends out of the locking cylinder and is connected with the pull block; the inner return spring is sleeved outside the locking inner rod and is connected with the wedge block and the step cavity; the warhead is abutted against the inclined surface of the wedge block and can extend into or separate from the first through hole from the second through hole in the transverse translation process of the wedge block; a bullet return spring is connected between the bullet and the inner wall of the locking barrel;
the connecting assembly is also provided with a cushion block for mounting and dismounting; the cushion block is shaped like a Chinese character 'Jiong'; when the pull block and the locking handle are pulled outwards to a proper position, one inserting leg of the cushion block is inserted between the pull block and the locking handle, and the other inserting leg is inserted between the locking handle and the clamping ring;
the connecting method of the connecting mechanism comprises the following steps:
s1: the pulling block is pulled outwards to enable the warhead to retract into the locking cylinder, and meanwhile, the locking handle is pulled outwards to enable the tail of the locking cylinder to be separated from the locking hole; when the pull block and the locking handle are pulled outwards to be in place, the tail part of the locking barrel is kept in the sliding cavity by using the cushion block, and the head part of the bullet is positioned in the first through hole;
s2: installing a sealing ring between a first flange and a second flange, clamping a connecting arm in an annular clamping groove, enabling a locking hole to be opposite to a locking cylinder, drawing away a cushion block, inserting the locking cylinder into the locking hole under the action of an outer return spring, enabling a wedge block to translate towards the tail of the locking cylinder under the action of an inner return spring, and enabling a warhead to move upwards until the head of the warhead is inserted into a first through hole in the translation process;
s3: after the connecting arm at the other end of the second pipe body is installed, the power wheel handle is rotated, and under the action of the speed increasing box, the nut of the screw rod drives the jacking teeth to move towards the first flange and the second flange until the jacking teeth are inserted into the first blind hole and the second blind hole.
2. The method of claim 1, wherein the tightening teeth are L-shaped; when one of the jacking teeth is inserted into the first blind hole in place, the side wall of the jacking tooth abuts against the end face of the first flange; when the other jacking tooth is inserted into the second blind hole in place, the side wall of the jacking tooth abuts against the end face of the second flange.
3. The method of claim 1, wherein the driving assembly comprises a housing, a lead screw, a gearbox, and a power wheel handle; the two ends of the screw rod are opposite in rotating direction and are connected to the inner side of the connecting arm; the speed increasing box is longitudinally penetrated through a connecting arm, a driving shaft of the speed increasing box is positioned on the outer side of the connecting arm and is connected with a power wheel handle, a driven shaft of the speed increasing box is positioned on the inner side of the connecting arm and is connected with a screw rod, and a through hole capable of enabling the jacking teeth to slide is formed in the outer side of the screw rod and faces the side of the first pipe body by the outer shell cover; the two jacking teeth are arranged on a nut of the screw rod; and rotating the power wheel handle, wherein one of the tightening teeth is inserted into the first blind hole, and the other tightening tooth is inserted into the second blind hole.
4. The connecting method of a high-pressure manifold connecting mechanism according to claim 1, wherein the first blind hole and the second blind hole are distributed in a staggered manner in a radial direction of the first pipe body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110776358.3A CN113503408B (en) | 2021-07-08 | 2021-07-08 | Connecting method of high-pressure manifold connecting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110776358.3A CN113503408B (en) | 2021-07-08 | 2021-07-08 | Connecting method of high-pressure manifold connecting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113503408A CN113503408A (en) | 2021-10-15 |
| CN113503408B true CN113503408B (en) | 2022-09-20 |
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| CN108980489B (en) * | 2018-06-26 | 2020-09-15 | 天恩建筑安装工程有限公司 | Pipeline connecting device for fire hydrant |
| CN211175780U (en) * | 2019-08-30 | 2020-08-04 | 天津国正环保科技有限公司 | Wastewater treatment pipeline assembly splicing and installing mechanism |
| CN211901963U (en) * | 2019-12-23 | 2020-11-10 | 上海特一阀门制造有限公司 | Valve convenient to dismantle |
| CN213018213U (en) * | 2020-06-03 | 2021-04-20 | 天津市煜立金属科技有限公司 | Limiting device for pipeline connector |
| CN213420219U (en) * | 2020-08-06 | 2021-06-11 | 辛集市邑阔天然气有限公司 | Natural gas line butt joint pipe structure |
| CN213332924U (en) * | 2020-08-24 | 2021-06-01 | 五星(天津)石油装备有限公司 | Pipe end connecting piece of petroleum pipeline |
| CN213064988U (en) * | 2020-08-25 | 2021-04-27 | 广州晟力茶文化投资有限公司 | Irrigation equipment's for garden engineering pipeline coupling mechanism |
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