CN115289295A

CN115289295A - Pipeline connector for hydraulic engineering

Info

Publication number: CN115289295A
Application number: CN202210921249.0A
Authority: CN
Inventors: 张健
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-11-04

Abstract

The invention discloses a pipeline connector for hydraulic engineering, which comprises a locking ring, wherein the cross section of the locking ring is in a T shape, one side of the locking ring is in fit sliding connection with a first connecting piece, the other side of the locking ring is in fit sliding connection with a second connecting piece, compression rings are sleeved on the first connecting piece and the second connecting piece, two adjusting screw rods are symmetrically arranged on two side walls of the locking ring respectively, the whole installation is simpler by arranging the first connecting piece and the second connecting piece, parts such as a collecting cylinder and the like are increased by utilizing the pressure generated by water flow in a pipeline, and the two extrusion rings can more compactly compress and seal the pipeline port by utilizing the resistance generated by water, so that a more stable and effective sealing structure is formed.

Description

Pipeline connector for hydraulic engineering

Technical Field

The invention relates to the field of hydraulic engineering, in particular to a pipeline connector for hydraulic engineering.

Background

The pipeline joint has the advantages of convenient installation, superior performance, long service life and the like, and is widely applied to the construction of water supply and drainage industries in the fields of water supply, drainage, electric power, metallurgy, urban construction, petroleum, chemical engineering, environmental protection, large and medium-sized enterprises and the like.

The pipeline connector creates a set of unique pipeline connecting technology by the original design, breaks through the traditional connecting concept, adopts stainless steel and rubber to manufacture an element combination device to achieve the sealing and pressure-bearing functions, and has a very compact structure. During construction, the pipe ends do not need to be processed, the connector is sleeved at the two pipe ends to be connected, the bolts beside the side portions are screwed, the clamping teeth are tightly meshed with the surfaces of the pipe ends to achieve limiting and fixing, and the sealing sleeves are tightly attached to the pipelines to achieve a locking state of sealing and firm connection.

However, the existing pipe joint has some defects, in the using process, although the connection is convenient, the sealing effect of the rubber pad at the sealing position is poor, the leakage is easy to occur, and meanwhile, when the clamp part is screwed and adjusted, the extrusion deformation is easy to occur, so that the leakage is caused, and therefore the pipe joint with the good sealing effect is needed.

Disclosure of Invention

In order to solve the existing problems, the invention provides a pipeline connector for hydraulic engineering.

The invention is realized by the following technical scheme:

a pipeline connector for hydraulic engineering comprises a locking ring, wherein the cross section of the locking ring is in a T shape, one side of the locking ring is attached and slidably connected with a first connecting piece, the other side of the locking ring is attached and slidably connected with a second connecting piece, compression rings are sleeved on the first connecting piece and the second connecting piece respectively, two side walls of the locking ring are symmetrically provided with two adjusting screw rods respectively, two adjusting screw rods which are positioned on the same side symmetrically penetrate through the corresponding compression rings and are in threaded connection with the compression rings respectively, one end of each of the first connecting piece and the second connecting piece is provided with a plurality of hinge grooves respectively, a first hinge rod is hinged in each hinge groove through a hinge pin, a plurality of bolts are screwed on the outer walls of the first connecting piece and the second connecting piece respectively, a plurality of first cavities are uniformly arranged in the inner walls of two sides of the locking ring in an annular shape, a first sliding block is slidably connected in each first cavity, a first return spring is arranged in each first cavity, one end of each first return spring is respectively attached to the corresponding first side wall of the corresponding first return spring, the corresponding sliding block is fixedly connected to the first connecting piece through the hinge pin, a plurality of the corresponding fixed blocks are arranged on the first connecting blocks, and the first connecting blocks are fixedly connected to the first connecting pieces, and the corresponding fixed to the first connecting blocks, each stabilizing sleeve is inserted with a top rod in sliding connection, one end of each top rod is fixedly connected with a cushion block, one side of each cushion block is arc-shaped, one arc-shaped side of each cushion block is attached to one end of a corresponding second hinge rod, a stabilizing ring is arranged in the locking ring, a plurality of connecting blocks are uniformly and fixedly arranged on the outer wall of the stabilizing ring in an annular mode, one end of each second hinge rod extends into the corresponding connecting block and is hinged with the connecting block through a hinge pin, a plurality of supports are uniformly and fixedly connected on one side wall of the stabilizing ring in an annular mode, the supports are integrally triangular, extrusion rings are fixedly connected between one ends of the supports and one ends of the top rods, the connecting blocks are symmetrically and fixedly connected on the inner wall of the stabilizing ring, a collecting cylinder is arranged between the two connecting blocks, and a conical cylinder is attached to the inner wall of the collecting cylinder in a sliding mode, the outer wall of the collecting cylinder is symmetrically provided with first dovetail grooves, a first dovetail block is connected in each first dovetail groove in a sliding manner, two connecting blocks are respectively and fixedly connected with one end of the corresponding first dovetail block, one end of the conical cylinder is provided with a second dovetail groove, a plurality of second dovetail blocks are arranged in each second dovetail groove, a rotating cylinder is fixedly connected between one ends of the plurality of second dovetail blocks, one side of the rotating cylinder is fixedly connected with a locking cylinder, one side of the locking cylinder is fixedly provided with a drain hole, the outer wall of the locking cylinder is provided with a locking groove, the inner wall of one side of the locking groove is provided with an annular inserting groove, a plurality of second cavities are uniformly arranged in the inner wall of the locking cylinder in an annular manner, a second sliding block is connected in each second cavity in a sliding manner, and a second reset spring is arranged in each second cavity, one end of each second reset spring is attached to one side of the corresponding second sliding block, the other end of each second reset spring is attached to one side of the inner wall of the corresponding second cavity, a second sliding rod is fixedly mounted on one side wall of each second sliding block, one end of each second sliding rod penetrates out of the corresponding second cavity and is in sliding connection with the corresponding second cavity, one end of each second sliding rod, which penetrates out of the second cavity, extends into the annular slot, second dovetail grooves are symmetrically formed in the inner wall of the collecting barrel, a second dovetail block is connected in each second dovetail groove in a sliding manner, a compression spring is arranged in each second dovetail groove, one end of each compression spring is attached to the corresponding side wall of each second dovetail block, and the other end of each compression spring is attached to the corresponding inner wall of one side of each second dovetail groove, the outer wall of the conical cylinder is respectively and fixedly connected with two corresponding second dovetail blocks, one side of each support is fixedly provided with a guide block, the inner wall of the second connecting piece is symmetrically and fixedly connected with two stabilizing bars, a fixing ring is fixedly connected between the two stabilizing bars, the inner wall of the fixing ring is symmetrically and fixedly connected with two fixing bars, a guide ring is fixedly connected between the two fixing bars, one side wall of the fixing ring is fixedly connected with two L-shaped connecting frames, a U-shaped frame is fixedly connected between the two L-shaped connecting frames, one side of the U-shaped frame is fixedly provided with two guide rollers, a sliding plate is slidably connected in the U-shaped frame, one side wall of the sliding plate is fixedly connected with a guide rod, one end of the guide rod penetrates through the U-shaped frame and is slidably connected with the U-shaped frame, one end of the U-shaped frame is fixedly connected with two pull ropes, and two opposite inner walls of the U-shaped frame are symmetrically provided with third dovetail grooves, the inner wall of the first dovetail groove is fixedly connected with a first dovetail block, the inner wall of the first dovetail groove is fixedly connected with a second dovetail block, a first pull rope penetrates through the first dovetail groove and is fixedly connected with the guide support, and one end of the first pull rope penetrates through the guide support and is fixedly connected with the guide support.

Preferably, the guide block is in a dovetail shape, the size of the guide block is the same as that of the first dovetail block, the axes of the guide block and the first dovetail block are on the same horizontal plane, and the inner bottom surface of the annular slot and the inner bottom surface of the locking slot are on the same horizontal plane.

Preferably, rotatory section of thick bamboo fried dough twist pole forms with hollow pole combination, and hollow pole setting is in the fried dough twist pole, and the two is through welded fastening connection, and the fixed fried dough twist groove that is provided with on the inner wall of guide ring, and the fried dough twist pole of the fried dough twist groove on the guide ring and rotatory section of thick bamboo department mutually supports.

Preferably, the bottom end of the first hinge rod, the connection part of the first connecting piece and the pipe port and the side wall of the extrusion ring are all fixedly provided with sealing rubber.

Preferably, bearings are symmetrically and fixedly embedded in the two side walls of the locking ring respectively, and one end of each adjusting screw rod extends into the inner ring wall of the corresponding bearing and is fixedly connected with the inner ring wall.

Preferably, the first connecting piece and the second connecting piece are provided with rubber sealing rings at the joint sliding positions with the locking ring, and the rubber sealing rings are fixed on the locking ring.

Compared with the prior art, the invention has the beneficial effects that: the device is through being provided with first connecting piece and second connecting piece, make the unit mount comparatively simple, and utilize the pressure that the inside rivers of pipeline produced, increase spare parts such as collecting vessel, the resistance that utilizes the water to produce, make two extrusion rings can be compacter compress tightly sealed to pipeline port department, thereby form more stable effectual seal structure, compare in traditional connector, this device has the installation simple and conveniently, and sealed effectual beneficial effect, the emergence of the circumstances such as weeping seepage has been avoided.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is an enlarged schematic view of A of FIG. 1 in accordance with the present invention;

FIG. 3 is a block diagram of the collection canister of FIG. 1 according to the invention;

FIG. 4 is a block diagram of the retaining ring of FIG. 1 in accordance with the present invention;

FIG. 5 is a left side view of the first connector of FIG. 1 in accordance with the present invention;

FIG. 6 is a left side view of the locking ring of FIG. 1 in accordance with the present invention;

FIG. 7 is a left side view of the stabilizer ring of FIG. 1 in accordance with the present invention;

fig. 8 is a schematic diagram showing the movement state of the collecting cylinder in the structure of fig. 1.

In the figure: locking ring 1, first connecting piece 2, second connecting piece 3, pressing ring 4, adjusting screw 5, hinge groove 6, first hinge rod 7, first cavity 8, first return spring 9, first sliding block 10, first sliding rod 11, top block 12, stabilizing sleeve 13, ejector rod 14, extrusion ring 15, cushion block 16, first hinge block 17, second hinge rod 18, stabilizing ring 19, second hinge block 20, connecting block 21, collecting cylinder 22, tapered cylinder 23, first dovetail groove 24, first dovetail block 25, second dovetail groove 26, second dovetail block 27, rotating cylinder 28, locking cylinder 29, drain hole 30, locking groove 31, second cavity 32, second return spring 33, second return spring 34, second sliding rod 35, annular slot 36, second dovetail groove 37, second dovetail block 38, compression spring 39, bracket 40, guide block 41, stabilizing rod 42, fixing ring 43, fixing rod 44, guide ring 45, L-shaped connecting frame 46, U-shaped arc-shaped sliding frame 47, guide rail 48, third dovetail block 52, fourth sliding block 55, fourth dovetail block 55, guide groove 52, third dovetail groove 52, fourth dovetail block 55, third dovetail groove 52, and fourth dovetail groove 52.

Detailed Description

The invention is described in further detail below with reference to the following figures and embodiments:

as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, and fig. 8, a pipe connector for hydraulic engineering includes a locking ring 1, a cross-section of the locking ring 1 is T-shaped, one side of the locking ring 1 is attached to a first connecting member 2 in a sliding manner, the other side of the locking ring 1 is attached to a second connecting member 3 in a sliding manner, a pressing ring 4 is sleeved on each of the first connecting member 2 and the second connecting member 3, two adjusting screws 5 are symmetrically installed on two side walls of the locking ring 1, two adjusting screws 5 located on the same side symmetrically penetrate through the corresponding pressing ring 4 and are in screw connection with the corresponding pressing ring 4, a plurality of hinge grooves 6 are respectively provided on one end of the first connecting member 2 and the second connecting member 3, a first hinge rod 7 is hinged in each hinge groove 6 through a hinge pin, a plurality of bolts are respectively screwed on outer walls of the first connecting member 2 and the second connecting member 3, a plurality of first cavities 8 are uniformly provided in an annular shape in inner wall of both sides of the locking ring 1, a first cavity 8 is slidably connected to a first cavity 10, a return spring block 10 is provided on each sliding block 10, a side wall of the sliding block 10 is provided corresponding to a return spring 9, a return block 10 is provided on each slide block 10 corresponding to a side wall of the first connecting block, a first connecting member 10, a return spring 9 is provided on each slide block 10 corresponding slide block 10, a plurality of first hinged blocks 17 are uniformly and fixedly arranged on the inner wall of the locking ring 1 in an annular manner, a second hinged rod 18 is hinged in each first hinged block 17 through a hinged pin, a plurality of stabilizing sleeves 13 are uniformly and fixedly arranged on the inner wall of the first connecting piece 2 in an annular manner, ejector rods 14 in sliding connection are inserted in each stabilizing sleeve 13, one end of each ejector rod 14 is fixedly connected with a cushion block 16, one side of each cushion block 16 is arc-shaped, one arc-shaped side of each cushion block 16 is attached to one end of the corresponding second hinged rod 18, a stabilizing ring 19 is arranged in the locking ring 1, a plurality of connecting blocks 21 are uniformly and fixedly arranged on the outer wall of the stabilizing ring 19 in an annular manner, one end of each second hinged rod 18 extends into the corresponding connecting block 21 and is hinged to the connecting block 21 through a hinged pin, a plurality of brackets 40 are uniformly and fixedly connected on one side wall of the stabilizing ring 19 in an annular manner, the whole support 40 is triangular, the extrusion rings 15 are fixedly connected between one ends of the plurality of supports 40 and one ends of the plurality of ejector rods 14, the connecting blocks 21 are symmetrically and fixedly connected on the inner wall of the stabilizing ring 19, the collecting cylinder 22 is arranged between the two connecting blocks 21, the conical cylinder 23 is attached to the inner wall of the collecting cylinder 22 in a sliding manner, the first dovetail grooves 24 are symmetrically arranged on the outer wall of the collecting cylinder 22, the first dovetail block 25 is slidably connected in each first dovetail groove 24, the two connecting blocks 21 are respectively and fixedly connected with one end of the corresponding first dovetail block 25, one end of the conical cylinder 23 is provided with the second dovetail groove 26, the second dovetail blocks 27 are arranged in the second dovetail grooves 26, the rotating cylinders 28 are fixedly connected between one ends of the second dovetail blocks 27 together, one side of the rotating cylinders 28 is fixedly connected with the locking cylinders 29, a drain hole 30 is fixedly arranged on one side of the locking cylinder 29, a locking groove 31 is arranged on the outer wall of the locking cylinder 29, an annular slot 36 is arranged on the inner wall of one side of the locking groove 31, a plurality of second cavities 32 are annularly and uniformly arranged in the inner wall of the locking cylinder 29, a second sliding block 34 is slidably connected in each second cavity 32, a second return spring 33 is arranged in each second cavity 32, one end of each second return spring 33 is attached to one side of the corresponding second sliding block 34, the other end of each second return spring 33 is attached to the inner wall of one side of the corresponding second cavity 32, a second sliding rod 35 is fixedly arranged on one side wall of each second sliding block 34, one end of each second sliding rod 35 penetrates out of the corresponding second cavity 32 and is slidably connected with the corresponding second sliding rod, one end of each second sliding rod 35, which penetrates out of the second cavity 32, extends into the annular slot 36, a second dovetail groove 37 is symmetrically arranged on the inner wall of the collecting cylinder 22, a second dovetail block 38 is slidably connected in each second dovetail groove 37, a compression spring 39 is arranged in each second dovetail groove 37, one end of each compression spring 39 is attached to the corresponding side wall of the second dovetail block 38, the other end of each compression spring 39 is attached to the inner wall of one side of the corresponding second dovetail groove 37, the outer wall of the conical cylinder 23 is fixedly connected with the corresponding two second dovetail blocks 38, a guide block 41 is fixedly mounted on one side of each bracket 40, two stabilizer bars 42 are symmetrically and fixedly connected to the inner wall of the second connecting part 3, a fixing ring 43 is fixedly connected between the two stabilizer bars 42, and two fixing rods 44 are symmetrically and fixedly connected to the inner wall of the fixing ring 43, a guide ring 45 is fixedly connected between the two fixing rods 44, two L-shaped connecting frames 46 are fixedly connected to one side wall of the fixing ring 43, a U-shaped frame 47 is fixedly connected between the two L-shaped connecting frames 46, two guide rollers 48 are fixedly mounted on one side of the U-shaped frame 47, a sliding plate 49 is slidably connected to the U-shaped frame 47, a guide rod 50 is fixedly connected to one side wall of the sliding plate 49, one end of the guide rod 50 penetrates through the U-shaped frame 47 and is slidably connected with the U-shaped frame 47, two pull ropes 51 are fixedly connected to one end of the U-shaped frame 47, third dovetail blocks 53 are symmetrically arranged on two opposite inner walls of the U-shaped frame 47, two ends of the sliding plate 50 are fixedly connected with the two third dovetail blocks 53 respectively, a guide bracket 61 is fixedly connected to one end of each connecting frame 46, a pressing rod 55 is inserted into each guide bracket 61 and is slidably connected to each guide bracket 61, a moving plate 54 is fixedly connected to one end of each pressing rod 55, an arc-shaped pressing block 56 is fixedly connected to the other end of each arc-shaped pressing block 56, a plurality of four dovetail grooves 59 are correspondingly connected to the inner wall of the corresponding fourth dovetail grooves 59, a fourth dovetail return spring return groove 59 is arranged on one side wall of each guide bracket 59, a fourth dovetail block 59 is arranged on one side wall of each guide block 59, one end of each pulling rope 51 penetrates through the corresponding guide bracket 61 and is connected with the guide bracket 61 in a sliding mode, and one end of each pulling rope 51 penetrating through the guide bracket 61 is fixedly connected with the side wall of the corresponding moving plate 54.

The guide block 41 is in a dovetail shape, the size of the guide block 41 is the same as that of the first dovetail block 25, the axes of the guide block 41 and the first dovetail block 25 are on the same horizontal plane, and the inner bottom surface of the annular slot 36 and the inner bottom surface of the locking groove 31 are on the same horizontal plane.

The rotary drum 28 twist rod and the hollow rod are combined to form the rotary drum 28 twist rod, the hollow rod is arranged in the twist rod, the rotary drum 28 twist rod and the hollow rod are fixedly connected through welding, a twist groove is fixedly formed in the inner wall of the guide ring 45, and the twist groove in the guide ring 45 is matched with the twist rod at the position of the rotary drum 28.

And sealing rubber is fixedly arranged at the bottom end of the first hinge rod 7, the connection part of the first connecting piece 2 and the second connecting piece 3 with the pipeline port and the side wall of the extrusion ring 15.

The two side walls of the locking ring 1 are respectively and symmetrically fixedly embedded with bearings, and one end of each adjusting screw 5 extends into the inner ring wall of the corresponding bearing and is fixedly connected with the inner ring wall.

The first connecting piece 2 and the second connecting piece 3 are both provided with rubber sealing rings at the joint sliding positions with the locking ring 1, and the rubber sealing rings are fixed on the locking ring 1.

The working principle is as follows: during the use, place the device by two pipelines of treating to be connected, then install the device, specific installation process is: the device is placed between two pipelines to be connected, then the first connecting piece 2 and the second connecting piece 3 extend towards two sides under the elastic force of the first return spring 9 in the first cavity 8 so as to be attached to the ports of the pipelines, at the moment, the first hinged rods 7 hinged to two sides of the first connecting piece 2 and the second connecting piece 3 are paved on the pipelines which are relatively drunk, then the corresponding adjusting screw rods 5 are rotated, so that the pressing ring 4 starts to move, the first hinged rods 7 are clamped, the device is preliminarily fixed on the two pipelines, at the moment, the bolts on the first connecting piece 2 and the second connecting piece 3 are rotated to be secondarily fixed, the device can be normally used, when water flows pass through the device, due to the arrangement of the collecting cylinder 22, when the water flows through the collecting cylinder 22, due to the arrangement of the conical cylinder 23 in the collecting cylinder 22, therefore, the resistance of water flow passing through the position can be increased, the conical barrel 23 moves towards the right side, and the collecting barrel 22 is driven to move towards the right side, after the collecting barrel 22 moves, the stabilizing sleeve 13, the ejector rod 14, the squeezing rings 15, the cushion block 16, the first hinging block 17, the second hinging rod 18, the stabilizing rings 19 and the second hinging block 20 are arranged, the second hinging rod 18 is hinged, so that the second hinging rod 18 can push the cushion block 16, the ejector rod 14 in the stabilizing sleeve 13 can squeeze the squeezing rings 15 at the left side more tightly, the stabilizing rings 19 are fixedly connected with a plurality of brackets 40, the squeezing rings 15 at the right side can squeeze the ports more compactly due to the resistance generated at the collecting barrel 22, the sealing performance of the device is further ensured, and in addition, the pressure in the pipeline is not fixed, the internal water pressure has a fluctuation range, so when the rotary cylinder 28 and the locking cylinder 29 also move along with the collecting cylinder 22, the rotary cylinder 28 can be extended into the guide ring 45 to be matched with the spiral grooves on the inner wall of the guide ring 45 to form a simple locking state, but the locking state at this time is unstable and still changes along with the water pressure, after the locking cylinder 29 is extended into the U-shaped frame 47, the sliding plate 49 can be slid to enable the pulling rope 51 to be loosened, the return spring 62 is arranged in the fourth dovetail groove 59, under the elastic force of the return spring 62, the fourth dovetail block 60 starts to move in the fourth dovetail groove 59, so that the two pressing rods 55 are drawn close to the middle to enter the locking groove 31, under the pressure of water impact, the second sliding rod 35 enters the corresponding arc positioning groove 58 to form a clamping, so that stable locking is formed, and as the water pressure is increased, the pressing force of the two pressing rings 15 is stronger, but when the pressure is reduced, the clamping and the positioning groove 58 is loosened, so that the sealing performance of the device is not ensured.

The device is provided with a first cavity 8, a first return spring 9, a first sliding block 10, a first sliding rod 11 and a top block 12, the first connecting piece 2 and the second connecting piece 3 are ensured to extend towards two sides normally, a stabilizing sleeve 13 is arranged, the moving stability of the top rod 14 is ensured, a first dovetail groove 24, a first dovetail block 25, a second dovetail groove 26 and a second dovetail block 27 are arranged, the moving stability of structures such as the collecting cylinder 22 and the conical cylinder 23 is ensured, a guide block 41 is arranged and can extend into the corresponding first dovetail groove 24, the stability of the collecting cylinder 22 is increased, when water flow in the device does not flow or disappear, the resistance of the device can disappear, the device is reset integrally under the action of the second dovetail groove 37, the second dovetail block 38 and the compression spring 39, and the elasticity of the compression spring 39 is larger than that of the return spring 62, so that the device can be detached conveniently.

The device is through being provided with first connecting piece 2 and second connecting piece 3, make the unit mount comparatively simple, and utilize the pressure that the inside rivers of pipeline produced, increase spare parts such as collecting vessel 22, the resistance that utilizes the water to produce, make two extrusion rings 15 can be compacter compress tightly sealed to pipeline port department, thereby form more stable effectual seal structure, compare in traditional connector, this device has simple installation, and sealed effectual beneficial effect, the emergence of the circumstances such as weeping seepage has been avoided.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a pipe connector for hydraulic engineering, includes locking ring (1), its characterized in that: the cross section of the locking ring (1) is in a T shape, one side of the locking ring (1) is attached and slidably connected with a first connecting piece (2), the other side of the locking ring (1) is attached and slidably connected with a second connecting piece (3), the first connecting piece (2) and the second connecting piece (3) are respectively sleeved with a pressing ring (4), two adjusting screws (5) are respectively and symmetrically installed on two side walls of the locking ring (1), the two adjusting screws (5) which are positioned on the same side and are symmetrical respectively penetrate through the corresponding pressing rings (4) and are in threaded connection with the corresponding pressing rings, a plurality of hinging grooves (6) are respectively arranged on one ends of the first connecting piece (2) and the second connecting piece (3), a first hinging rod (7) is hinged in each hinging groove (6) through a hinging pin, a plurality of bolts are respectively screwed on the outer walls of the first connecting piece (2) and the second connecting piece (3), a plurality of first cavities (8) are uniformly arranged in annular shapes on the inner walls of two sides of the locking ring (1), a first cavity (8) is slidably connected with a first return spring (10), a first return spring (9) is arranged on the inner wall of each first return spring (9), and a second return spring (9), a first sliding rod (11) is fixedly arranged on one side wall of each first sliding block (10), one end of each first sliding rod (11) penetrates through the corresponding first cavity (8) and is in sliding connection with the corresponding first cavity, a top block (12) is fixedly connected to one end, penetrating out of the first cavity (8), of each first sliding rod (11), each top block (12) is in fit connection with the corresponding first connecting piece (2) and the corresponding second connecting piece (3) through side walls, a plurality of first hinging blocks (17) are uniformly and fixedly arranged on the inner wall of the locking ring (1) in an annular mode, a second hinging rod (18) is hinged to each first hinging block (17) through a hinging pin, a plurality of stabilizing sleeves (13) are uniformly and fixedly arranged on the inner wall of each first connecting piece (2) in an annular mode, a top rod (14) in sliding connection is inserted into each stabilizing sleeve (13), one end of each top rod (14) is fixedly connected with a base (16), one side of each cushion block (16) is in an arc shape, a corresponding hinging block (19) is correspondingly and is provided with a plurality of stabilizing rings (19) in a plurality of hinging blocks (21), and the inner wall of the corresponding connecting blocks (18), the stabilizing rings (21) are hinged to the inner wall of each connecting ring (1), the device is characterized in that a plurality of supports (40) are uniformly and fixedly connected to one side wall of the stabilizing ring (19) in an annular mode, the supports (40) are integrally triangular, extrusion rings (15) are fixedly connected to one ends of the supports (40) and one ends of the push rods (14) in a symmetrical mode, connecting blocks (21) are fixedly connected to the inner wall of the stabilizing ring (19) in a symmetrical mode, a collecting cylinder (22) is arranged between the two connecting blocks (21), a conical cylinder (23) is attached to the inner wall of the collecting cylinder (22) in a sliding mode, first dovetail grooves (24) are symmetrically arranged on the outer wall of the collecting cylinder (22), a first dovetail block (25) is slidably connected to the inner wall of each first dovetail groove (24), the two connecting blocks (21) are fixedly connected to one end of the corresponding first dovetail block (25) respectively, a second dovetail groove (26) is arranged at one end of the conical cylinder (23), a plurality of second dovetail blocks (27) are arranged in the second dovetail grooves (26), a plurality of rotating cylinder (28) are fixedly connected to one end of the second dovetail blocks (27), a locking groove (29) is arranged on one side of the fixed rotating cylinder (29), and a locking groove (31) is arranged on one side of the locking cylinder (29), a plurality of second cavities (32) are uniformly and annularly arranged in the inner wall of the locking barrel (29), a second sliding block (34) is connected in each second cavity (32) in a sliding manner, a second reset spring (33) is arranged in each second cavity (32), one end of each second reset spring (33) is attached to one side of the corresponding second sliding block (34), the other end of each second reset spring (33) is attached to the inner wall of one side of the corresponding second cavity (32) in a uniform and corresponding manner, a second sliding rod (35) is fixedly arranged on one side wall of each second sliding block (34), one end of each second sliding rod (35) penetrates out of the corresponding second cavity (32) and is connected with the corresponding second cavity in a sliding manner, one end of each second sliding rod (35) penetrating out of the second cavity (32) extends into the annular slot (36), second dovetail grooves (37) are symmetrically arranged on the inner wall of the collecting barrel (22), a second dovetail groove (38) is connected in a sliding manner, one end of each second dovetail groove (38) is fixedly connected with one side wall of the corresponding tapered dovetail groove (39), two compression springs (39) are fixedly arranged on one side of the corresponding dovetail groove (39), and two compression springs (39) are respectively arranged on one side walls of the corresponding dovetail groove (37), a guide block (41) is fixedly installed on one side of each support (40), two stabilizer bars (42) are symmetrically and fixedly connected on the inner wall of the second connecting piece (3), a fixing ring (43) is fixedly connected between the two stabilizer bars (42), two fixing rods (44) are symmetrically and fixedly connected on the inner wall of the fixing ring (43), a guide ring (45) is fixedly connected between the two fixing rods (44), two L-shaped connecting frames (46) are fixedly connected on one side wall of the fixing ring (43), a U-shaped frame (47) is fixedly connected between the two L-shaped connecting frames (46), two guide rollers (48) are fixedly installed on one side of the U-shaped frame (47), a sliding plate (49) is slidably connected in the U-shaped frame (47), a guide rod (50) is fixedly connected on one side wall of the sliding plate (49), one end of the guide rod (50) penetrates through the U-shaped frame (47) and is slidably connected with the U-shaped frame, two sliding plates (51) are fixedly connected on one end of the U-shaped frame (47), third dovetail grooves (52) are symmetrically arranged on two opposite inner walls of the U-shaped frame (47), and two guide blocks (53) are respectively connected with the third dovetail grooves (53), and two dovetail grooves (53) are respectively connected with the guide ring (61), all inserted sliding connection's compressing rod (55) on every guide bracket (61), the equal fixedly connected with movable plate (54) of one end of every compressing rod (55), the equal fixedly connected with arc compact heap (56) of the other end of every compressing rod (55), equal fixed mounting has arc locating piece (57) in one side of every arc compact heap (56), all be provided with a plurality of arc constant head tank (58) on the extrados of every arc locating piece (57), all be provided with fourth dovetail (59) on the lateral wall of every guide bracket (61), equal sliding connection has fourth dovetail (60) in every fourth dovetail (59), one side of every fourth dovetail (60) all with corresponding movable plate (54) lateral wall fixed connection, all be provided with reset spring (62) in every fourth dovetail (59), the one end of every reset spring (62) all with corresponding fourth dovetail (60) lateral wall fixed connection, the other end of every reset spring (62) all with corresponding fourth dovetail (59) lateral wall fixed connection, the one end that every stay cord (51) all passed corresponding fixed connection of guide bracket (51) and every guide bracket (61) and corresponding fixed connection respectively.

2. The pipe joint for the hydraulic engineering according to claim 1, characterized in that: the guide block (41) is in a dovetail shape, the size of the guide block (41) is the same as that of the first dovetail block (25), the axes of the guide block (41) and the first dovetail block (25) are on the same horizontal plane, and the inner bottom surface of the annular slot (36) and the inner bottom surface of the locking slot (31) are on the same horizontal plane.

3. The pipe joint for the hydraulic engineering according to claim 1, characterized in that: the rotary drum (28) is formed by combining a twist rod and a hollow rod, the hollow rod is arranged in the twist rod, the twist rod and the hollow rod are fixedly connected through welding, a twist groove is fixedly formed in the inner wall of the guide ring (45), and the twist groove in the guide ring (45) is matched with the twist rod at the position of the rotary drum (28).

4. The pipe joint for the hydraulic engineering according to claim 1, characterized in that: and sealing rubber is fixedly arranged at the connecting part of the first connecting piece (2) and the second connecting piece (3) with the pipeline port and on the side wall of the extrusion ring (15) at the bottom end of the first hinge rod (7).

5. The pipe joint for hydraulic engineering according to claim 1, wherein: the two side walls of the locking ring (1) are respectively and symmetrically fixedly embedded with bearings, and one end of each adjusting screw rod (5) extends into the inner ring wall of the corresponding bearing and is fixedly connected with the inner ring wall.

6. The pipe joint for the hydraulic engineering according to claim 1, characterized in that: and rubber sealing rings are arranged at the joint sliding positions of the first connecting piece (2) and the second connecting piece (3) and the locking ring (1), and are fixed on the locking ring (1).