CN115178960A - Pipeline butt joint frock - Google Patents

Abstract

A pipeline butt joint frock includes: the device comprises a compression ring, a telescopic rod group, an adjusting screw rod, a circular ring and a compression piece. The number of the compression rings is two, and the compression rings comprise a plurality of arc-shaped plates arranged along the circumference; the telescopic rod group comprises a middle pipe and telescopic screw rods which are coaxially arranged at two ends of the middle pipe through thread matching, the thread turning directions of the two telescopic screw rods are opposite, and the other ends of the telescopic screw rods are respectively connected to the compression rings at two sides. The number of the adjusting screw rods is consistent with that of the telescopic rod groups, the lower ends of the adjusting screw rods are sleeved outside the middle pipe through a ring sleeve, and a locking piece is arranged on the side wall of the ring sleeve in a penetrating manner; the ring is of a detachable multi-section structure, and one side of the ring is provided with a plurality of rectangular notches along the circumference; the pressing pieces are arranged in one-to-one correspondence with the adjusting screw rods and are arranged in a moving mode along the axis direction of the adjusting screw rods. This application overall structure is simple, and the dismouting is used conveniently during the construction, and the adaptation butt joint has the pipeline of contained angle each other.

Description

Pipeline butt joint frock

Technical Field

The invention belongs to the technical field of pipeline installation engineering construction facilities, and particularly relates to a pipeline butt joint tool.

Background

The pipeline is laid and installed, and is widely applied to urban construction and energy transportation, such as urban tap water pipelines, heat supply pipelines, oil pipelines, gas pipelines and the like. In order to improve the use safety and prolong the service life of the pipeline and meet the requirement of urban planning construction, various existing pipelines are usually laid underground. Most pipeline sampling pipe metal is made, adopts the welding to carry out butt joint usually, because the pipeline weight that the metal was made is great, need remove, fix a position the pipeline with the help of auxiliary assembly when laying the installation most of the time to make the tip butt joint of two adjacent pipelines, thereby make things convenient for the welding.

The invention patent application number 202011188141.2 discloses a rapid pipeline butt joint device, which utilizes a reverse and forward rapid twisting device to drive a reverse and forward buckling pull rod, so that two adjacent sections of pipelines are gathered together through a hoop. The technical scheme mainly has the following problems that firstly, the horizontal height of the pipelines is only adjusted through the rolling support, the coaxiality of the two pipelines is not considered, so that a guide rod for guiding and a reverse and positive buckle pull rod for pulling the pipelines are difficult to penetrate through a corresponding through hole and a threaded hole in a clamp, the guide rod and the reverse and positive buckle pull rod are required to be smoothly installed, firstly, the coaxiality between the pipelines must be accurately controlled, and therefore the erection difficulty of the butt joint device is increased; secondly, the two handles are required to be simultaneously screwed to complete the butt joint of the pipelines, and the scheme also ensures that the rotation speeds of the two handles are consistent to ensure that the pipelines can stably move; third, this solution cannot be applied to situations where there are some angles between adjacent pipes.

The invention patent with application number 202210448807.6 discloses a heat supply pipeline butt welding tool, which is complex in overall structure and comprises two groups of support assemblies, wherein each group of support assemblies comprises a plurality of first clamping assemblies and second clamping assemblies which need to be adjusted, so that the erection and dismantling processes are complex, and the construction progress is influenced; and need use the device that power and pressurized air source were used to a plurality of needs such as driving motor, pull rod motor and cylinder, very big increase the restriction condition when open-air is laid, increase required equipment of construction and construction cost, on the other hand, this scheme also can't be applicable to the condition that has some contained angles between adjacent pipeline.

The invention patent with the application number of 202111310147.7 discloses a drainage pipeline butt joint device and a butt joint method, wherein a positioning round rod moves towards the center or away from the center by moving a driving block, so that a limit is formed on a pipeline, and the butted pipelines are coaxial. But it needs to be inserted into or removed from one end of the pipeline when it is erected or removed, which is inconvenient for on-site construction and is only suitable for pipeline butt joint which can keep coaxial after butt joint.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides a pipeline butt joint tool which is simple in overall structure, convenient to disassemble, assemble and use during construction, free of electric energy, free of accurate adjustment of the coaxiality between pipelines before butt joint, capable of effectively adjusting the coaxiality between the pipelines after butt joint and suitable for butt joint of the pipelines with included angles.

In order to realize the purpose of the invention, the following scheme is adopted:

a pipeline butt joint frock, includes: the device comprises a compression ring, a telescopic rod group, an adjusting screw rod, a circular ring and a compression piece.

The number of the compression rings is two, the compression rings are respectively used for being connected to two butted pipelines, each compression ring comprises a plurality of arc-shaped plates arranged along the circumference, and a detachable connecting structure is arranged between every two adjacent arc-shaped plates;

the telescopic rod group comprises a middle pipe and telescopic screw rods coaxially arranged at two ends of the middle pipe through thread matching, the thread turning directions of the two telescopic screw rods are opposite, one ends of the telescopic screw rods facing the outer side of the telescopic rod group are respectively connected to the clamp rings at two sides, and the preset swing range of the telescopic screw rods relative to the axis of the clamp rings is preset.

The number of the adjusting screw rods is consistent with that of the telescopic rod groups, the lower ends of the adjusting screw rods are sleeved outside the middle pipe through a ring sleeve, a locking piece is arranged on the side wall of the ring sleeve in a penetrating mode, the connection state between the ring sleeve and the middle pipe is switched, when the ring sleeve is connected with the middle pipe, the middle pipe and the ring sleeve rotate around the axis at the same time, and when the ring sleeve is disconnected with the middle pipe, the ring sleeve rotates around the axis relative to the middle pipe;

one side of the circular ring is provided with a plurality of rectangular notches along the circumference for accommodating the adjusting screw rod, the circular ring is of a detachable multi-section structure, and the circular ring is sleeved outside the pipeline and all the telescopic rod groups when in use;

the pressing pieces are arranged in one-to-one correspondence with the adjusting screw rods, move in the axis direction of the adjusting screw rods and are used for pressing the outer walls of the butt-joint pipelines simultaneously.

Furthermore, convex connecting plates are arranged on the two ends of the arc plates towards the outer cambered surfaces, through holes are formed in the connecting plates in a long mode, the two ends of each through hole are of a conical structure and are connected with each other through connecting bolts, and the connecting bolts penetrate through the through holes.

Further, the both ends of arc intrados face respectively rotate and are equipped with an antifriction plate, and its pivoted axis is parallel with the axis of clamp ring, and the inner wall of antifriction plate is the arc structure, makes to have bigger contact surface between antifriction plate and the pipeline, links to each other through first spring between two antifriction plates on the same arc.

Further, the outer arc surface of arc is equipped with the connecting rod along tangential direction, and the connecting hole has been seted up towards the one end of clamp ring to the flexible screw rod, and during the use, connecting rod or connecting bolt pass the connecting hole, and the internal diameter at connecting hole middle section is less than the internal diameter at both ends.

Furthermore, a pipe fitting is coaxially sleeved outside the telescopic screw rod, the pipe fitting is connected with one end, facing the compression ring, of the telescopic screw rod, and the outer wall of the middle pipe is slidably sleeved at the other end of the pipe fitting.

Furthermore, the rectangular notch is rotatably arranged on the clamping block, the rotating axis of the rectangular notch is parallel to the axis of the circular ring, the clamping block and one side of the rectangular notch, which are consistent in orientation, are provided with clamping grooves, the clamping grooves are used for clamping the adjusting screw rods, the width size of the opening part of each clamping groove is smaller than that of the inside of the corresponding clamping groove, and the width size of the opening part of each clamping groove is larger than the major diameter of the adjusting screw rod.

Further, the middle section of the middle pipe is sleeved with the ring sleeve, a tooth-shaped groove is formed in the outer wall of the middle section of the middle pipe along the circumference, the locking piece comprises an one-way clamping plate which automatically stretches out and draws back along the axis direction, the back face of the front end of the one-way clamping plate is an inclined face, the locking piece moves and is arranged along the normal direction of the ring sleeve, and the locking piece rotates and is arranged around the axis of the locking piece.

Further, the locking piece includes the cylinder head, the rectangular hole has been seted up to the cylinder head front end, one-way cardboard slides and wears to locate in the rectangular hole, link to each other through the second spring between the rear end of one-way cardboard and the bottom surface in rectangular hole, the coaxial guide arm that is equipped with in rear end of cylinder head, the end of guide arm is equipped with the handle, the rear end face of handle perpendicular to guide arm, guide arm periphery cover is equipped with the third spring, the lateral wall intercommunication of ring cover is equipped with the pipe, the end of pipe is equipped with the end cover, the cylinder head is worn to locate in the pipe, the guide arm passes the end cover, the third spring is located between cylinder head and the end cover, the handle is located the end cover outside, the outer terminal surface of end cover is equipped with the bar groove, be used for connecting handle.

Further, compress tightly the piece and be U type structure, it includes the horizontal segment and locates the vertical section that the horizontal segment both ends are the same with one side and length perpendicularly, and accommodate the lead screw passes the horizontal segment, and is on a parallel with the vertical section, and the bottom of vertical section is used for compressing tightly the outer wall of butt joint pipeline simultaneously.

Furthermore, the bottom of the vertical section is hinged with a pressing plate, the axis of the hinged part is parallel to the axis of the pipeline, and the bottom surface of the pressing plate is of an inward-sunken cambered surface or a V-shaped groove structure.

The invention has the beneficial effects that:

1. overall structure is simple, and the spare part assembly that connecting tube used only includes clamp ring, telescopic link group two kinds, and the spare part assembly of adjustment usefulness only includes ring, accommodate the lead screw and compresses tightly three kinds of piece, and the permission between telescopic link group and the clamp ring has angular migration to be in the pipeline of disalignment state before the adaptation butt joint.

2. The telescopic rod groups are used for folding the spaced pipelines, the rings are used for simultaneously rotating the plurality of adjusting screw rods so as to simultaneously drive the plurality of telescopic rod groups arranged along the circumference of the pipelines, the telescopic rod groups are simultaneously contracted so as to stably fold the pipelines, an electric device is not required for driving in the whole process, the length of an arm of force is increased by the rings, and the force required during rotation can be effectively reduced; and in the process of utilizing the ring to drive the adjusting screw rod to swing, the unidirectional driving of the middle pipe is realized through the locking piece, and the contraction and extension speeds of the telescopic rod group can be effectively accelerated.

3. The side that ring, clamp ring all can follow the pipeline carries out the dismouting, and the ring edgewise realizes being connected and separating with the adjusting screw to and the expansion link group direct action can be crossed to the clamp part, makes it and expansion link group between have a lug connection structure, and to sum up the dismouting is more convenient when can making the construction.

4. The clamp ring can select the equipment quantity of arc according to the diameter size of pipeline to the arc all rotates antifriction plate and the pipeline outer wall structure that sets up through two inboards, thereby can make the clamp ring adapt to the different diameter big pipelines of centre gripping, and has stable centre gripping effect.

Drawings

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

Fig. 1 shows a schematic view of the application in use when two pipes are closed.

Fig. 2 shows an enlarged view at a in fig. 1.

Fig. 3 shows an overall structural diagram of an embodiment of the clamp ring of the present application.

Fig. 4 shows a schematic view of the application in use when aligning the orifices of the conduits.

Fig. 5 shows an enlarged view at B in fig. 4.

Fig. 6 shows an exploded view of a preferred embodiment of the lock of the present application.

Fig. 7 shows a cross-sectional view of a preferred embodiment of the locking element of the present application and its connection to the toothed groove.

Fig. 8 shows a cross-sectional view of a preferred embodiment of the locking member of the present application and its disengagement from the toothed slot.

Figure 9 shows a cross-sectional view of a preferred construction of the telescopic pole set of the present application.

Figure 10 shows a schematic view of the application in use when butting pipes at an angle to each other.

Fig. 11 shows a schematic structural view of an embodiment of the pressing member.

The labels in the figure are: the device comprises a compression ring-1, an arc-shaped plate-11, a connecting plate-111, a connecting bolt-12, a wear-resistant plate-13, a first spring-14, a connecting rod-15, a telescopic rod group-2, a middle pipe-21, a tooth-shaped groove-211, a telescopic screw-22, a connecting hole-221, a pipe fitting-23, an adjusting screw rod-3, a ring sleeve-31, a guide pipe-311, a locking piece-32, a cylindrical head-321, a clamping plate-322, a second spring-323, a guide rod-324, a handle-325, a third spring-326, a circular ring-4, a rectangular notch-401, a clamping block-41, a clamping groove-411, a compression piece-5, a transverse section-51, a vertical section-52 and a pressing plate-53.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are a part of the embodiments of the present invention, not all of the embodiments of the present invention.

As shown in fig. 1, 4 and 10, a pipe butt joint tool includes: the device comprises a compression ring 1, a telescopic rod group 2, an adjusting screw rod 3, a circular ring 4 and a compression piece 5.

Specifically, as shown in fig. 1 and 10, the number of the clamp rings 1 is two, and the clamp rings are respectively used for connecting two butted pipelines. When in connection, the compression rings 1 are close to the butt joint end of the pipelines.

More specifically, as shown in fig. 3, the clamp ring 1 includes a plurality of arc plates 11 arranged along the circumference, and a detachable connection structure is provided between adjacent arc plates 11. The detachable connection structure comprises a bolt connection mode, an iron wire or steel wire winding mode and other connection modes, so that the detachable connection structure can be conveniently installed or detached from the side face of the pipeline, and the diameter of the pipeline can be adapted to increase or decrease in quantity. When the pipeline is connected, the compression ring 1 can be directly compressed on the outer wall of the pipeline through the inner walls of the arc-shaped plates 11 so as to be connected with the pipeline, and the adjacent arc-shaped plates 11 are connected through the connecting bolts 12.

Specifically, as shown in fig. 1 and 9, the telescopic rod group 2 includes a middle tube 21 and telescopic screws 22 coaxially disposed at two ends of the middle tube 21 through thread engagement, and the thread directions of the two telescopic screws 22 are opposite. When the middle pipe 21 is rotated, the two telescopic screws 22 can move towards the middle of the telescopic rod group 2 simultaneously or towards the two ends of the telescopic rod group 2 simultaneously, and when the telescopic screws 22 move towards the middle simultaneously, the two pipes which are spaced from each other can be folded. One end of the telescopic screw 22 facing the outside of the telescopic rod group 2 is respectively connected to the compression rings 1 at two sides, and the telescopic screw 22 is in a preset swing range relative to the axis of the compression rings 1 so as to adapt to different axial states of the pipeline, wherein the different axial states comprise that the axes of the pipeline are mutually spaced and parallel, the axes of the pipeline have an included angle, and the extension lines of the axes are intersected or spaced.

Specifically, as shown in fig. 1 and 2, the number of the adjusting screw rods 3 is the same as that of the telescopic rod group 2, the lower ends of the adjusting screw rods are sleeved outside the middle tube 21 through a ring sleeve 31, and a locking member 32 is arranged on the side wall of the ring sleeve 31 in a penetrating manner to switch the connection state between the ring sleeve 31 and the middle tube 21. When the ring 31 is connected to the intermediate tube 21, the intermediate tube 21 and the ring 31 rotate around the axis at the same time; when the collar 31 is disconnected from the intermediate pipe 21, the collar 31 is rotated about the axis relative to the intermediate pipe 21.

More specifically, the locking member 32 may be a bolt structure, and a plurality of insertion holes are formed in the outer wall of the middle tube 21 along the circumference, so that when the locking member 32 of the bolt structure is inserted into the insertion holes, the connection between the ring sleeve 31 and the middle tube 21 is realized, and when the locking member 32 of the bolt structure is pulled out of the insertion holes, the connection between the ring sleeve 31 and the middle tube 21 is disconnected. The jack structure can be a cylindrical or polygonal-prism-shaped counter bore or a groove formed on the outer wall of the middle pipe 21.

Specifically, as shown in fig. 3, 4 and 5, a plurality of rectangular notches 401 are formed along the circumference on one side of the ring 4 for accommodating the adjusting screw rod 3, the ring 4 is of a detachable multi-section structure and is connected through a bolt or a pin shaft, so that the ring can be conveniently disassembled and assembled from the side surface of the pipeline, and the ring 4 is sleeved on the outer side of the pipeline and all the telescopic rod groups 2 during use. When the circular ring 4 is rotated around the axis, the side walls of the rectangular notches 401 can simultaneously drive the adjusting screw rods 3 to swing around the axes of the respective lower end ring sleeves 31 so as to drive the middle pipes 21 of all the telescopic rod groups 2 to rotate, thereby simultaneously enabling the telescopic screw rods 22 of all the telescopic rod groups 2 to move towards the middle or towards the two ends, when all the telescopic screw rods 22 simultaneously move towards the middle, the pipeline can be rapidly furled, and the furling speed force and the furling force all over the circumference of the pipeline can be ensured to be kept balanced, so that the pipeline is prevented from deflecting. The rectangular notches 401 are arranged on the same side of the ring 4, and the purpose of the rectangular notches 401 is to move the ring 4 along the axis of the pipeline, so that the rectangular notches 401 can be connected with or separated from the adjusting screw rods 3 without the adjusting screw rods 3 penetrating through the ring 4 one by one, and the connection with the ring 4 is realized.

Specifically, the pressing pieces 5 are arranged in one-to-one correspondence with the adjusting screw rods 3 and are arranged in a moving mode along the axis direction of the adjusting screw rods 3, and the pressing pieces are used for pressing the outer walls of the butt joint pipelines at the same time so as to adjust the positions of the axes of the butt joint pipelines, and finally enable the two pipelines to tend to be coaxial.

When in erection, the clamp ring 1 is respectively connected to two pipelines, and at least two telescopic rod groups 2 are connected along the circumference of the clamp ring 1. And (3) folding the pipeline, firstly, the ring 4 is utilized to drive the adjusting screw rod 3 to enable the telescopic screw rod 22 of the telescopic rod group 2 to move towards the middle so as to fold the pipeline, the end surface of the pipeline is contacted or close to the pipeline, then the ring 4 is moved to enable the ring 4 to be separated from the adjusting screw rod 3, and the ring sleeve 31 is connected with the middle pipe 21 in the process. Aligning the pipes, connecting the pressing members 5 to the adjusting screw rods 3, installing adjusting nuts on the adjusting screw rods 3 for driving the pressing members 5 to move, and aligning and applying pressure through the pressing members 5 arranged on the corresponding sides if the deviation of the positions of the pipes on the side is large by visual observation, so as to adjust the plurality of pressing members 5 on the periphery of the pipes in such a way that the pipe orifices of the pipes are aligned, wherein in order to enable the pressing members 5 to have proper pressing positions, the connection between the ring sleeve 31 and the middle pipe 21 can be disconnected, or the adjusting screw rods 3 are swung to positions facing the normal direction of the pipes, and then the ring sleeve 31 and the middle pipe 21 are connected. The pipeline aligns the back alright the clearance department of reserving between adjacent compressing tightly 5 and carries out prewelding to the seam of pipeline, after the pipeline is fixed through prewelding, demolishs the frock, carries out the circumference full weld to the pipeline again.

As shown in fig. 10, when a predetermined included angle is required between the connected pipes, two telescopic rod sets 2 may be used, and the two telescopic rod sets 2 are respectively disposed at two opposite sides of the pipe, one of the telescopic rod sets is disposed at one side of the included angle of the pipe, and the other telescopic rod set is disposed at the outer side of the included angle of the pipe. The clamp ring 1 is respectively fixed on two pipelines in the first phase, and the distance from the clamp ring 1 to the corresponding pipeline orifices is the same. Then, the extension lengths of the telescopic screws 22 are adjusted, the extension lengths of the telescopic screws 22 at the two ends of the same telescopic rod group 2 are the same, and the extension length of the telescopic screw 22 located at the inner side of the pipeline included angle is smaller than the extension length of the telescopic screw 22 of the other telescopic rod group 2. When the two telescopic rod groups 2 are connected with the compression ring 1, the middle pipe 21 can be rotated to retract the telescopic screw rods 22, so that the pipeline is closed. And then, respectively pressing the inner side and the outer side of the included angle of the pipeline by using a pressing piece so as to align the pipeline.

In the application, the adjusting screw rod 3 is not only used for driving the middle rod 21 to rotate so as to fold the pipeline; but also be used for connecting compressing tightly 5, the pipeline mouth of pipe after making to fold aligns, and its pipeline tends to the coaxial or makes the axis extension line of pipeline tend to crossing to this can effectively simply constitute by the structure of this application, makes frock overall structure simple and practical more, and easily operation. Because it is not necessary or desirable to ensure absolute coaxiality or absolute intersection of the axes when laying a pipeline, the expressions "tending to coaxiality" and "tending to intersect" are used in the description.

Preferably, as shown in fig. 3, the two ends of the arc plates 11 are provided with convex connecting plates 111 towards the outer arc surface, the connecting plates 111 are provided with through holes 112 in length, the two ends of each through hole 112 are of a conical structure, the adjacent arc plates 11 are connected with each other through connecting bolts 12, the connecting bolts 12 pass through the through holes 112, the two ends of the through holes 112 are provided with screw positions of the conical structures for avoiding the connecting bolts 12, so that the connecting bolts 12 are arranged along the tangential direction of the compression ring 1.

Preferably, as shown in fig. 3, two wear-resistant plates 13 are respectively rotatably disposed at two ends of the inner arc surface of the arc plate 11, the axes of rotation of the wear-resistant plates are parallel to the axis of the pressing ring 1, and the inner walls of the wear-resistant plates 13 are arc-shaped, so that a larger contact surface is provided between the wear-resistant plates 13 and the pipeline, and thus the inner wall of each arc plate 11 is in contact with the outer wall of the pipeline through the two wear-resistant plates 13. The wear-resisting plate 13 not only can be adapted to pipelines with different pipe diameters through rotation, but also can increase the contact position between the wear-resisting plate and the pipelines, so that the connection stability between the compression ring 1 and the pipelines is improved, and the pipelines are pulled stably.

Further preferably, as shown in fig. 3, two wear-resistant plates 13 on the same arc plate 11 are connected with each other through a first spring 14, so as to simultaneously maintain the positions of the two wear-resistant plates 13 on the arc plate 11, so that the inner walls of the wear-resistant plates 13 face the center of the compression ring 1 during the installation process of the compression ring 1 using the front frame, and thus the inner walls of the wear-resistant plates 13 are directly attached to the outer wall of the pipeline during the assembly process.

Preferably, as shown in fig. 1, fig. 3, fig. 4 and fig. 9, the connecting rod 15 is arranged on the outer arc surface of the arc plate 11 along the tangential direction, the connecting rod 15 is detachably inserted into a pair of hinge plates parallel to each other and arranged on the outer wall of the arc plate 11, and a connecting hole 221 is formed at one end of the telescopic screw 22 facing the compression ring 1. In use, the connecting rod 15 or the connecting bolt 12 passes through the connecting hole 221.

It is further preferable that the inner diameter of the middle section of the connection hole 221 is smaller than the inner diameters of both ends as shown in fig. 9, so that the telescopic screw 22 can swing not only about the axis of the connection rod 15 or the connection bolt 12 but also about the normal direction of the connection rod 15 or the connection bolt 12, thereby allowing the telescopic screw 22 to satisfy the requirement of swinging within a predetermined range with respect to the axis of the clamp ring 1.

Preferably, as shown in fig. 9, a pipe 23 is coaxially sleeved outside the telescopic screw 22, the pipe 23 is connected to one end of the telescopic screw 22 facing the clamp ring 1, and the other end of the pipe 23 is slidably sleeved on the outer wall of the middle pipe 21, so as to improve the overall bending strength of the telescopic rod assembly 2. Because when making to compress tightly piece 5 and remove along accommodate the lead screw 3, telescopic link group 2 will receive the reaction force that compresses tightly piece 5, can prevent effectively that telescopic link group 2 from taking place bending deformation through setting up pipe fitting 23, with the threaded connection structure between protection telescopic screw 22 and the intermediate pipe 21, and can make telescopic screw 22 hide in pipe fitting 23, played the guard action to telescopic screw 22, prevent that impurities such as earth of job site from getting into telescopic screw 22 and the thread pair of intermediate pipe 21, and lead to the screw thread transmission jamming.

Preferably, as shown in fig. 2 and fig. 5, the rectangular notch 401 is rotatably disposed on the fixture block 41, a rotation axis of the rectangular notch is parallel to an axis of the circular ring 4, a clamping groove 411 is disposed on one side of the fixture block 41 facing the rectangular notch 401 in a same direction, the clamping groove 411 is used for clamping the adjusting screw rod 3, a width dimension of an opening of the clamping groove 411 is smaller than a width dimension inside the clamping groove 411, and the width dimension of the opening of the clamping groove 411 is larger than a major diameter of the adjusting screw rod 3, so as to prevent the adjusting screw rod 3 from sliding out of the clamping groove 411 during swinging. When the rotary ring 4 drives the adjusting screw rod 3 to swing, the fixture block 41 can rotate to adapt to the swing of the adjusting screw rod 3, and is connected with the adjusting screw rod 3 through the fixture groove 411 on the fixture block 41, so that the impact on the adjusting screw rod 3 during reciprocating rotation of the rotary ring 4 can be reduced.

Preferably, as shown in fig. 2 and 6, the ring sleeve 31 is sleeved on the middle section of the middle tube 21, a tooth-shaped groove 211 is formed in the outer wall of the middle section of the middle tube 21 along the circumference, the tooth-shaped groove 211 is a long strip-shaped structure, the length direction of the tooth-shaped groove is parallel to the axial direction of the middle tube 21, the locking member 32 includes a one-way catch plate 322 which automatically extends and retracts along the axial direction, so that the front end of the one-way catch plate 322 is combined with or separated from the tooth-shaped groove 211, and the back of the front end of the one-way catch plate 322 is an inclined surface.

When the ring 31 drives the locking member 32 to rotate toward the back of the one-way clutch 322, that is, when the ring 31 rotates clockwise as shown in fig. 7, the inclined surface of the front end of the one-way clutch 322 slides along the edge of the tooth top of the tooth-shaped groove 211 and retracts toward the inside of the locking member 32 to avoid the tooth-shaped groove 211, and at this time, the ring 31 can rotate around the axis relative to the middle tube 21. When the ring sleeve 31 drives the locking member 32 to rotate toward the front of the one-way chuck plate 322, that is, when the ring sleeve 31 shown in fig. 7 rotates counterclockwise, the front end of the one-way chuck plate 322 is inserted into the tooth-shaped groove 211, and the front of the one-way chuck plate 322 contacts with the side wall of the tooth-shaped groove 211, so that the one-way chuck plate 322 drives the middle tube 21 to rotate together with the ring sleeve 31. Through the structure, the adjusting screw rod 3 can drive the middle pipe 21 to rotate together only when swinging towards the preset direction, and when the adjusting screw rod swings towards the direction opposite to the preset direction, the middle pipe 21 cannot rotate together, so that the adjusting screw rod 3 can swing to the original position, and can swing towards the preset direction again, and the middle pipe 21 can rotate.

Preferably, the locking member 32 is movably disposed along a normal direction of the collar 31 so that the one-way catching plate 322 is coupled to or separated from the tooth-shaped groove 211, and when the locking member 32 moves the locking member 32 to the outside of the collar 31, as shown in fig. 8, the one-way catching plate 322 is separated from the tooth-shaped groove 211. When the locking member 32 moves the locking member 32 toward the middle of the collar 31, as shown in fig. 7, the one-way catching plate 322 is engaged with the toothed groove 211.

It is further preferred that the locking member 32 is rotatably disposed about its axis to switch the orientation of the one-way catch plate 322, thereby controlling the rotational direction of the intermediate tube 21.

More specifically, as shown in fig. 6, the locking member 32 includes a cylindrical head 321, a rectangular hole is formed at the front end of the cylindrical head 321, the one-way catch plate 322 is slidably disposed in the rectangular hole, the rear end of the one-way catch plate 322 is connected to the bottom surface of the rectangular hole through a second spring 323, so that the one-way catch plate 322 automatically extends and retracts along the axial direction of the cylindrical head 321, a guide rod 324 is coaxially disposed at the rear end of the cylindrical head 321, a handle 325 is disposed at the tail end of the guide rod 324, the handle 325 is perpendicular to the rear end surface of the guide rod 324, and a third spring 326 is sleeved on the periphery of the guide rod 324. As shown in fig. 2, 7 and 8, a guide pipe 311 is provided in communication with a side wall of the ring sleeve 31, an end cap 312 is provided at a terminal end of the guide pipe 311, a cylindrical head 321 is inserted into the guide pipe 311, a guide rod 324 penetrates the end cap 312, a third spring 326 is located between the cylindrical head 321 and the end cap 312, a handle 325 is located outside the end cap 312, and a strip groove 313 is provided on an outer end surface of the end cap 312 for connecting the handle 325. As shown in fig. 7, when the front end of the handle 325 is engaged in the strip-shaped groove 313, the cylindrical head 321 is moved to the deepest position inside the ring sleeve 31 by the elastic force of the third spring 326, and the front end of the one-way engaging plate 322 can be inserted into the tooth-shaped groove 211. When the lock 32 is rotated, the handle 325 needs to be pulled backward to separate the handle 325 from the groove 313, and then the lock 32 can be rotated. If the orientation of the one-way clamping plate 322 needs to be switched, the handle 325 needs to be inserted into the strip-shaped groove 313 again after the locking piece 32 is rotated by 180 degrees, and then the operation can be realized. As shown in fig. 8, when the ring sleeve 31 needs to be completely separated from the middle tube 21, the handle 325 is pulled back and rotated to a position outside the strip-shaped groove 313 on the rear end surface of the end cap 312, so that the cylindrical head 321 can move towards the outside of the ring sleeve 31 to separate the one-way catch plate 322 from the toothed groove 211.

Preferably, as shown in fig. 1, 4 and 10, the pressing member 5 is a U-shaped structure, and includes a horizontal section 51 and a vertical section 52 vertically disposed on the same side of both ends of the horizontal section 51 and having the same length, the adjusting screw rod 3 passes through the horizontal section 51, the adjusting screw rod 3 is parallel to the vertical section 52, the bottom of the vertical section 52 is used for simultaneously pressing the outer walls of the butted pipelines, and the pressing member 5 is movably disposed along the axis of the adjusting screw rod 3 to adjust the positions of the axes of the butted pipelines, so as to finally enable the two pipelines to tend to be coaxial. Specifically, an adjusting nut can be mounted on the adjusting screw rod 3 to drive the pressing piece 5 to press the pipeline. The purpose that will compress tightly piece 5 design for U type structure lies in easy to assemble to make riser 52 can cross telescopic link group 2 from both sides and compress tightly in order to realize the pipeline, and every compresses tightly piece 5 and all compresses tightly the pipeline through two riser 52, multiplicable and pipeline between the contact position, stability when improving the regulation pipeline position. When the pipe with an included angle shown in fig. 10 is butted, although only two pressing pieces 5 are provided, each pressing piece 5 is contacted with the pipe through two vertical sections 52, and the pressing pieces 5 with the structure forming rectangular diagonal lines in four directions are pressed towards the center of the pipe, so that the pipes are aligned.

As shown in fig. 11, as another preferred structure of the pressing member 5 of the present application, it includes vertical plates, and upper transverse plates are provided at upper ends of the vertical plates, and lower transverse plates parallel to the upper transverse plates are provided at lower ends of the vertical plates. When the telescopic rod group is used, the adjusting screw rod 3 penetrates through the upper transverse plate, the telescopic rod group 2 is positioned between the upper transverse plate and the lower transverse plate, and the lower transverse plate is used for pressing a pipeline. The compressing part 5 and the telescopic rod group 2 in the structure have no direct connection relation, and are convenient to disassemble and assemble.

Further preferably, the bottom of each vertical section 52 is hinged with a pressure plate 53, the axis of the hinged part is parallel to the axis of the pipeline, the bottom surface of each pressure plate 53 is an inward-concave arc surface or a V-shaped groove structure, so that the contact part between each pressure plate 53 and the pipeline is increased, and the pressure plates 53 can rotate to adapt to pipelines with different diameters.

The foregoing is only a preferred embodiment of the present invention and is not intended to be exhaustive or to limit the invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention.

Claims (10)

1. The utility model provides a pipeline butt joint frock which characterized in that includes:

the pressing rings (1) are two groups and are respectively used for being connected to two butted pipelines, each pressing ring (1) comprises a plurality of arc-shaped plates (11) arranged along the circumference, and a detachable connecting structure is arranged between every two adjacent arc-shaped plates (11);

the telescopic rod group (2) comprises a middle pipe (21) and telescopic screws (22) which are coaxially arranged at two ends of the middle pipe (21) through thread matching, the thread turning directions of the two telescopic screws (22) are opposite, one ends of the telescopic screws (22) facing the outer side of the telescopic rod group (2) are respectively connected to the clamp rings (1) at two sides, and the preset swing range of the telescopic screws (22) relative to the axis of the clamp rings (1) is preset;

the number of the adjusting screw rods (3) is consistent with that of the telescopic rod groups (2), the lower ends of the adjusting screw rods are sleeved outside the middle pipe (21) through a ring sleeve (31), a locking piece (32) penetrates through the side wall of the ring sleeve (31), the connecting state between the ring sleeve (31) and the middle pipe (21) is switched, when the ring sleeve (31) is connected with the middle pipe (21), the middle pipe (21) and the ring sleeve (31) rotate around the axis at the same time, and when the ring sleeve (31) is disconnected with the middle pipe (21), the ring sleeve (31) rotates around the axis relative to the middle pipe (21);

the telescopic pipeline comprises a circular ring (4), wherein a plurality of rectangular notches (401) are formed in one side of the circular ring (4) along the circumference and used for accommodating an adjusting screw rod (3), the circular ring (4) is of a detachable multi-section structure, and the circular ring (4) is sleeved on the outer sides of the pipeline and all telescopic rod groups (2) in use;

the pressing pieces (5) are arranged in one-to-one correspondence with the adjusting screw rods (3) and are arranged in a moving mode along the axis direction of the adjusting screw rods (3) and used for pressing the outer walls of the butt-joint pipelines simultaneously.

2. The pipeline butt joint tool according to claim 1, wherein the two ends of each arc-shaped plate (11) are provided with convex connecting plates (111) in outward cambered surfaces, each connecting plate (111) is provided with a through hole (112) in a long length, the two ends of each through hole (112) are of a conical structure, adjacent arc-shaped plates (11) are connected through connecting bolts (12), and the connecting bolts (12) penetrate through the through holes (112).

3. The pipeline butt joint tool according to claim 1, wherein two ends of the inner arc surface of each arc plate (11) are respectively provided with one wear-resisting plate (13) in a rotating mode, the rotating axis of each wear-resisting plate is parallel to the axis of the compression ring (1), the inner wall of each wear-resisting plate (13) is of an arc structure, the wear-resisting plates (13) and a pipeline have larger contact surfaces, and the two wear-resisting plates (13) on the same arc plate (11) are connected through first springs (14).

4. The pipeline butt joint tool according to claim 2, wherein the outer arc surface of the arc plate (11) is provided with a connecting rod (15) along a tangential direction, one end of the telescopic screw rod (22) facing the compression ring (1) is provided with a connecting hole (221), when the pipeline butt joint tool is used, the connecting rod (15) or the connecting bolt (12) penetrates through the connecting hole (221), and the inner diameter of the middle section of the connecting hole (221) is smaller than the inner diameters of the two ends.

5. The pipeline butt joint tool according to claim 1, wherein a pipe (23) is coaxially sleeved outside the telescopic screw (22), the pipe (23) is connected with one end, facing the compression ring (1), of the telescopic screw (22), and the other end of the pipe (23) is slidably sleeved on the outer wall of the middle pipe (21).

6. The pipeline butt joint tool according to claim 1, wherein the rectangular notch (401) is rotatably arranged on the fixture block (41), the rotation axis of the fixture block is parallel to the axis of the circular ring (4), a clamping groove (411) is formed in one side, facing the same direction, of the fixture block (41) and the rectangular notch (401), the clamping groove (411) is used for clamping the adjusting screw rod (3), the width of the opening of the clamping groove (411) is smaller than the width of the inside of the clamping groove (411), and the width of the opening of the clamping groove (411) is larger than the major diameter of the adjusting screw rod (3).

7. The pipeline butt joint tool according to claim 1, wherein the ring sleeve (31) is sleeved on the middle section of the middle pipe (21), the outer wall of the middle section of the middle pipe (21) is provided with a tooth-shaped groove (211) along the circumference, the locking member (32) comprises a one-way clamping plate (322) which automatically stretches and retracts along the axial direction, the back surface of the front end of the one-way clamping plate (322) is an inclined surface, the locking member (32) is movably arranged along the normal direction of the ring sleeve (31), and the locking member (32) is rotatably arranged around the axis of the locking member.

8. The pipeline butt joint tool according to claim 7, wherein the locking piece (32) comprises a cylindrical head (321), a rectangular hole is formed in the front end of the cylindrical head (321), the one-way clamping plate (322) is slidably arranged in the rectangular hole, the rear end of the one-way clamping plate (322) is connected with the bottom surface of the rectangular hole through a second spring (323), a guide rod (324) is coaxially arranged at the rear end of the cylindrical head (321), a handle (325) is arranged at the tail end of the guide rod (324), the handle (325) is perpendicular to the rear end surface of the guide rod (324), a third spring (326) is sleeved on the periphery of the guide rod (324), a guide pipe (311) is communicated with the side wall of the ring sleeve (31), an end cover (312) is arranged at the tail end of the guide pipe (311), the cylindrical head (321) is arranged in the guide pipe (311) in a penetrating manner, the guide rod (324) penetrates through the end cover (312), the third spring (326) is arranged between the cylindrical head (321) and the end cover (312), the handle (325) is arranged outside the end cover (312), and an outer end surface of the end cover (312) is provided with a groove (313) for connecting the handle (325).

9. The pipeline butt joint tool according to claim 1, wherein the pressing piece (5) is of a U-shaped structure and comprises a transverse section (51) and vertical sections (52) which are vertically arranged on the same side of two ends of the transverse section (51) and have the same length, the adjusting screw rod (3) penetrates through the transverse section (51) and is parallel to the vertical sections (52), and the bottoms of the vertical sections (52) are used for simultaneously pressing the outer walls of the butted pipelines.

10. The pipeline butt joint tool according to claim 9, wherein the bottom of each vertical section (52) is hinged to a pressure plate (53), the axis of the hinged position is parallel to the axis of the pipeline, and the bottom surface of each pressure plate (53) is of an inward-concave arc surface or a V-shaped groove structure.

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