KR101309748B1 - Pipe joint device - Google Patents

Abstract

The present invention relates to a pipe joint, and more particularly, to a pipe joint to facilitate the pipe joint (Pipe joint) work using the driving principle of the rack and pinion.
According to the present invention, the compression clamp is fastened to the front end of another pipe for transport to any one pipe side of the inner diameter is expanded by the coupling of the joint pipe; A fixture for straight constraining arrangement of a plurality of pipes such that the pipe clamped with the crimping clamp and the pipe with which the joint pipe is bound face each other; A pair of conveying bodies which are coupled to both sides of the crimping clamp so that the pipe tip to which the crimping clamp is fastened can be fitted into the joint pipe by a driving action moving forward and backward in the fixed body. ; And an operating table for allowing the pair of the conveying bodies to be driven simultaneously through the reciprocating operation before and after pushing or pulling the assembly with the conveying body.

Description

Pipe fittings {PIPE JOINT DEVICE}

The present invention relates to a pipe joint, and more particularly, to a pipe joint to facilitate the pipe joint (Pipe joint) work using the driving principle of the rack and pinion.

In general, plumbing works such as water and sewage pipes for drinking water supply and sewage treatment, or underground pipes buried in the ground, such as houses and roads Piping work will be carried out.

Such piping work is to form pipe laying pipes by cutting / excavation of the ground using heavy equipment such as excavators, fork cranes, etc. After the pipe joint (called "joint work") work by manpower, it is finally finished by backfilling the cracked ground.

For reference, in the above-described joint operation, the pipe connection socket having the purpose of preventing leakage as well as increasing the assemblability and durability of the connection parts between the pipes is used (see Korean Patent No. 10-1005783).

Here, small pipes with small diameters can be joined by manpower, but large and medium pipes with large diameters have a considerable weight, so it is practical to carry out the above-mentioned joints as well as to move them by workers. In the impossible situation, the use of heavy equipment for the digging and backfilling, and the movement of the pipes and jointing is also carried out.

However, when using such heavy equipment, it is not easy to fit the leading end of the pipe into the connecting socket (hereinafter referred to as the "joint pipe") in addition to moving the corresponding pipes in a straight line.

In addition, even if the pipe ends are fitted into the pipes, a large number of workers must be put into the process of inserting the pipe pipes sufficiently into the pipes to secure the connection (joint) between the pipes. come.

In order to solve this problem to some extent, Korean Patent Laid-Open Publication No. 10-2010-0119463, a pvc pipe piping device (hereinafter referred to as "pipe joint device") as a device for pipe joints during the plumbing work using the joint pipe. Has been disclosed.

1 is a perspective view showing the overall structure of a pipe joint according to the prior art, the first connecting cap 910 for fixing the pipe, the connecting cap 910 is assembled on the top of the rack gear 921 on one side end; The rack gear shaft 920 is formed, the second connection cap 930 for fixing the joint pipe, the second connection cap 930 is assembled on the top and the rack gear shaft 920 is wrapped around the rack gear Square tube 940 with a pinion gear 941 capable of moving before and after riding 921, and a rotating rod 950 for the rotation of the pinion gear 940 meshed with the rack gear 921. do.

According to the conventional pipe joint device, by rotating the rotary rod 950 in one direction so that the pinion gear (941) is engaged with the rack gear 921 to rotate, the square tube 940 is a rack gear shaft 920, the end of the pipe fixed to the first connection cap 910 is inserted into the joint pipe fixed to the second connection cap 930 as it moves toward the first connection cap 910 side. You can achieve a custom pipe joint.

However, as described above, the rotating rod 950 must be continuously rotated in one direction so that the pinion gear 941 is engaged with the rack gear 921 so as to rotate. Will cause left and right flow phenomena.

For this reason, it is not easy to precisely fit the pipe end fixed to the first connection cap 910 into the joint pipe carried by the second connection cap 930, and for this reason, the pipe and the joint pipe are mutually The problem of the occurrence of gaps in the joints due to frictional imbalance has not been overcome yet.

Furthermore, when the torsional external force of the pipe formed due to the frictional imbalance described above is transmitted to the rack gear 921 and the pinion gear 941, it causes a closed end of device damage such as bending deformation of the rack gear shaft 920. Has been raised.

An object of the present invention is to solve the above-mentioned problems, through a pair of carriers that are moved simultaneously in the state arranged on both sides of the pipe and a single operating table capable of driving them simultaneously, the inner diameter of the joint pipe And it provides a pipe joint apparatus that allows the frictional force due to the conveying external force formed in the outer diameter of the pipe to be uniformly distributed throughout the entire area without being biased.

Another object of the present invention is to further combine the ratchet handle having one-way operability to each of the conveying body, so that the driving advancing direction of the conveying body in one direction even by repeated back and forth, reciprocating handling. It is to provide a pipe joint that allows to be made.

Still another object of the present invention is to provide a pipe for driving (moving) the conveying body using the operating table through the provision of the fixing member for the constraining arrangement of the pipes for mutual joint work together with the movement guide of the conveying body. It is to provide a pipe joint that can prevent the flow.

In order to achieve the above object, the present invention, the clamping clamped to the front end of another pipe for transport to any one pipe side of the inner diameter is expanded by the coupling of the joint pipe; A fixture for straight constraining arrangement of a plurality of pipes such that the pipe clamped with the crimping clamp and the pipe with which the joint pipe is bound face each other; A pair of conveying bodies which are coupled to both sides of the crimping clamp so that the pipe tip to which the crimping clamp is fastened can be fitted into the joint pipe by a driving action moving forward and backward in the fixed body. ; And an operating table for allowing the pair of the conveying bodies to be driven simultaneously through the reciprocating operation before and after pushing or pulling the assembly with the conveying body.

In addition, the crimping clamp is a semi-circular upper arch band to cover the upper end of any one of the pipes, and a semi-circular lower arch band to cover the lower end of the pipe, but as a lower arch band that can be assembled with the upper arch band Consists of, in the upper arch band, seating pieces for mounting assembly on each upper end of the conveying body is further extended at both ends, and the seating piece has a first incision opening opened in one direction on one side. In the lower arch band, the close contact pieces arranged close to the lower side of the seating piece are respectively bent and extended from both ends, and the close contact pieces are formed in the center with a second cut groove having the same shape as the first cut groove. An eye bolt capable of receiving the rotation of the tip portion into the first and second incision grooves is assembled by a hinge protruding outward from the arch portion near the lower side, and By tightening the eye bolt tip it is characterized in that the seating part to the lower pressure could make the pressure nut is further provided to the.

In addition, the fixture is connected to the pair of the first jig and the second jig, which are spaced apart before and after the crimping clamp between each other to restrain the front end of each pipe, and both sides of the first and second jig. It is composed of a plurality of guide bars for linkage assembly of the conveying body and guide the forward and backward drive, as well as maintaining the spacing of the first and second jigs according to the linkage coupling, the first and second jig, each restraint arrangement of the pipe The openings downwardly open for the respective centers are provided in the center portions, and both side portions are formed with through-holes for insertion coupling of the tip ends of the guide bars, while the guide bars have insertion protrusions pressed against the fitting holes. Protrudingly formed at both ends, the entire bottom surface is characterized in that the rack gear for driving forward and backward of the conveying body is formed along the longitudinal direction.

In addition, one side end surface of the close contact piece, characterized in that the "U" -shaped mounting hole for preventing the sag of the eyebolt tip is further provided integrally coupled.

In addition, the transfer body is a transfer bed that is capable of driving forward and backward on the guide bar during the reciprocating operation of the front and rear, and the rack gear in a hinge-assembled state of the lower end side of the transfer bed, A pinion gear capable of interlocking rotation and a rotation driving operation of the pinion gear are provided, and the ratchet handle is configured to rotate in one direction of the pinion gear.

In addition, the upper arch band and the first and second jig, characterized in that the first handle and the second handle to facilitate the gripping movement of the device is further protruded in the "∩" shape on the upper surface of each arch portion do.

In addition, the transfer bed, the finishing block for the mounting assembly of each of the seating pieces are laminated and assembled on the top, while in the finishing block, the receiving end for the buried mounting portion of the seating piece is formed in the upper center do.

As can be clearly seen from the above description, the pipe joint apparatus of the present invention is a pipe fitting into a joint pipe by confining arrangement of each pipe using a stationary body together with a pipe central concentration of a conveying external force utilizing a pair of conveying bodies. It can prevent the product damage such as the deformation of the pipe due to the frictional force which is formed at the time, and maximize the precision of the joint work by preventing the flow of the conveying pipe.

In addition, by using a ratchet handle having a one-way operability, the pipe joint work can be easily performed even in a narrow work space, thereby achieving an effect of greatly improving the convenience of the work process.

At the same time, the above-mentioned effects can be achieved, which can increase the efficiency of future management and economical operation of the resources given during the plumbing work. Furthermore, the basis of human activity is further improved. It is a very useful invention that can greatly contribute to the improvement of the work environment for the plumbing work required to construct the lifeline that collectively refers to the infrastructure of the line type such as communication, electric power, water and sewage, transportation and transportation network.

1 is a perspective view showing the overall structure of a pipe fitting according to the prior art.
Figure 2 is a perspective view showing the overall structure of the pipe joint according to the present invention.
Figure 3 is an exploded perspective view showing the assembly relationship of the pipe joint according to the present invention.
Figure 4 is an enlarged view showing the coupling relationship between the crimping clamp, the conveying member and the operating tool in the pipe joint according to the present invention.
5A and 5B are enlarged views illustrating a binding relationship between an upper arch band and a lower arch band in a pipe joint according to the present invention;
6a and 6b is a state diagram showing an embodiment of a pipe joint according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

2 is a perspective view showing the overall structure of the pipe joint according to the present invention, Figure 3 is an exploded perspective view showing the assembly relationship of the pipe joint according to the present invention, Figure 4 is a pipe joint according to the present invention 5A and 5B are enlarged views illustrating a binding relationship between an upper arch band and a lower arch band in a pipe joint according to the present invention. 6A and 6B are state diagrams showing an embodiment of a pipe fitting apparatus according to the present invention.

As shown in Figs. 2 and 3, the pipe joint A according to the present invention is the tip of another pipe for conveying to any one pipe side whose inner diameter is expanded due to the binding of the joint pipe. The clamping clamp 1 fastened to the clamping member, the fixture 2 for straight constraining arrangement of a plurality of pipes such that the pipe clamped with the crimping clamp 1 and the pipe fastened to the joint pipe face each other, and the crimping clamp (1) As long as the front end of the crimp clamp 1 can be fitted into the joint pipe by the driving action of moving forward and backward in the fixed body 2 in a state of being coupled to each side. An operating table for allowing the pair of conveying bodies 3 and the pair of conveying bodies 3 to be driven simultaneously through a reciprocating operation before and after pushing or pulling the linked conveying body 3 together with the conveying body 3 ( 4) consists of.

The crimping clamp 1 is a pipe binding means for enabling a cooperative transfer of a pipe when the conveying body 3 is driven by the operating table 4, as shown in FIGS. The upper arch band 11 is a semi-circular shape to cover the upper end portion, and the lower arch band 12 is semi-circular to cover the lower end portion of the pipe and can be assembled and assembled with the upper arch band 11.

In the upper arch band 11, the mounting piece 111 for mounting assembling on each upper end of the conveying body (3) arranged on both sides of the pipe is further extended at both ends, while the pressing clamp (1) The first handle 112, which facilitates gripping movement of the protrusion, is formed to protrude in the shape of " ∩ "

In addition, the seating piece 111, the first cutting groove 111a opened in one direction so as to accommodate the eye bolt of the lower arch band 12, which will be described later, is formed on one side, which will be described later. One or more pin holes 111b into which the binding key protruding from the upper end of the transfer bed of the transfer body 3 can be inserted are further formed on the bottom surface of the center part.

In the lower arch band 12, the close contact piece 121 which is arranged close to the lower side of the seating piece 111 of the upper arch band 11 is extended and bent from both ends, respectively, while the close contact piece 121 is near the lower side. The eye bolt 123 that is capable of receiving the rotation of the tip portion is coupled to the first incision groove 111a by the hinge 122 protruding outward from the arch portion.

In addition, the upper and lower arch together with the assembling of the upper and lower arch bands (11, 12) through the pressurization of the seating piece 111 is fastened and assembled to the front end of the eye bolt (123). A pressure nut 124 is further provided to allow the bands 11 and 12 to press the pipe outer diameter.

To this end, the close contact piece 121 is formed with a second incision groove 121a opened in one direction to allow the eye bolt 123 to be accommodated, similarly to the first incision groove 121a. On the other hand, the opening side end surface of the second incision groove 121a is further provided with a "U" shaped mounting hole 125 for preventing sagging of the tip of the eye bolt 123 is integrally provided.

The stationary body 2 is a means for driving forward and backward driving of the conveying body 3 together with a straight restraint arrangement for allowing a plurality of pipes to face each other, as shown in FIGS. 3 and 4. A pair of the first jig 21 and the second jig 21 'and the first and second jig 21, which are spaced apart before and after with the crimping clamp 1 interposed therebetween to restrain the front end. In addition to maintaining the spacing of the first and second jigs 21 and 21 'according to the linkage coupling the two sides of each other (21'), a plurality of for linkage assembly and forward and retreat drive guide of the transfer body (3). It consists of a guide bar 22.

In the first and second jigs 21 and 21 ', a downwardly open dimpled hole 21a is provided in the center portion, and fitting holes 21b for inserting and engaging the tip of the guide bar 22 are provided at both side portions thereof. While each is formed through, the second handle 211 of the "∩" shape to facilitate the gripping movement of the fixed body 2, like the first handle 112 described above is more protruding to the outer surface of the center desirable.

In the guide bar 22, insertion protrusions 221 forcibly fitted into the fitting holes 21b are formed at both ends thereof, and rack gears for driving forward and backward of the transfer body 3 are formed. 222 is formed throughout the bottom surface along the longitudinal direction.

The conveying member 3 is a pipe moving means for fitting the tip of the pipe to which the crimping clamp 1 is fastened into a pipe fitting pipe on the other side, as shown in FIGS. 3 and 4. The transfer bed 31, which is capable of driving in and out of the guide bar 22 of the fixed body 2 during the front and rear reciprocating operation of the operating table (4), and of the transfer bed 31 The pinion gear 32 which can be engaged with the rack gear 222 formed on the bottom surface of the guide bar 22 while being hinged at one end of the lower end, and the rotation driving operation of the pinion gear 32 are operated. It consists of a ratchet handle (33) for one-way rotation of the pinion gear 32 as described above.

In the transfer bed 31, a finishing block 31-1 for assembling the mounting piece 111 at both ends of the upper arch band 11 is laminated and assembled at the upper end, and the guide bar 22 is disposed at the lower side thereof. A through hole 31a through which the through is inserted is formed.

Meanwhile, in the finishing block 31-1, a receiving end 31-11 for embedding a portion of the seating piece 111 is formed at an upper end portion thereof, and from the upper surface of the receiving end 31-11. The binding key 31-12 which can be inserted into the pin hole 111b of the bottom surface of the said mounting piece 111 by protruding a predetermined length upward is provided.

At one end of the ratchet handle 33, it is preferable that the central shaft 331 for further rotational driving of the pinion gear 32 assembled at one end of the transfer bed 31 is further provided. Do.

The operating table 4 may be engaged with the pinion gear 32 of the conveying body 3 in engagement with the rack gear 222 formed on the bottom surface of the guide bar 22 of the fixed body 1. 3 and 4, the plurality of vertical rods 41 and the vertical rods 41 into which the front end of the ratchet handle 33 can be inserted. A “∩” shaped structure is achieved by a single horizontal rod 42 which is integrally coupled across the upper end of the field.

Accordingly, the simultaneous interlocking of the ratchet handles 33 inserted into the vertical rod 41 when the horizontal rod 42 is pushed or pulled back and forth, and thus the pinion gears 32 are true. Retreat drive is possible at the same time.

Reference numeral (b) is a bearing for smooth rotation of the central axis of the transfer bed, (t) is a conversion configured on one side of the ratchet handle in order to switch the drive direction of the pinion gear in the forward and reverse directions Lever.

Referring to the operation of the pipe joint device (A) according to the present invention having the above configuration in detail as follows.

First, after surveying the underground burial point of the pipes by the national control point, the ground is excavated to be 30 cm or more above the depth at which the pipe is buried in consideration of the gradient. .

For reference, during the digging work or pipe joint work, the digging is carried out at an angle sufficient to prevent a safety accident due to cracking or collapse of the soil, and then the sand is fine so as not to damage the pipe (pipe) by sharp stones or the like. The laying work to fill the dredged soil is carried out.

Thereafter, the pipes are moved to the trench position using heavy equipment such as an excavator, and then pipe joints are performed using the pipe joint device A of the present invention. The additional binding of p-3 allows the inner diameter of one of the pipes p-1 to be expanded so that the end of the other pipe p-2 can be fitted into the above fitting pipe p-3.

At this time, the crimping clamp 1 of the present invention is fastened to the tip of the pipe p-2, as shown in Figs. 2 and 3, before the guide of the fixed body 2 First, assembling and assembling so that the transfer bed 31 of the conveying body 3 is inserted into the bars 22 to form a through-inserted state, and the seating piece 111 of each of the upper arch bands 11 of the crimping clamp 1 ) Is assembled to the receiving end (31-11) formed on the upper end of the finishing block (31-1) of the transfer bed (31).

Then, the inner end of the corresponding pipes p-1 and p-2 for jointing work into each of the dimple holes 21a of each of the first jig 21 and the second jig 21 'and flow therein. This restraint arrangement allows the plurality of pipes p-1 and p-2 for jointing to be kept in a straight line with each other.

Subsequently, the upper arch band 11 surrounds the upper portion of the pipe p-2, and then the lower arch band 12 is positioned below the upper arch band 11, so that the pipe ( The lower part of p-2) is further wrapped so that the pipe p-2 can move simultaneously to the other pipe p-1 on the other side when the carrier 3 moves. Complete the clamp (1).

Thereafter, as shown in FIGS. 5A and 5B, the front end of the eye bolt 123 hinged to the lower contact piece 121 of the lower arch band 12 is rotated based on the hinge 122. The first cutting groove 111a formed in the seating piece 111 and the second cutting groove 121a of the contact piece 121 are accommodated therein.

Then, the pressing nut 124 is fastened to the front end of the eye bolt 123 and continuously tightened, thereby associating and assembling the upper and lower arch bands 11 and 12 with each other, as well as the seating piece 111. In order to be in close contact with the contact piece 121 side, the crimping clamp 1 may be fastened to the one end portion of the pipe (p-2).

Then, by inserting the tip of each of the ratchet handle 33 of the conveying body 3 into the lower side of the vertical rods 41 of the operating table (4), the front and rear operation of the horizontal stand 42 is performed. Simultaneous driving of the pinion gears 32 through the pair of conveying bodies 3 also allow the guide bar 22 to move in and out.

By the above-described process, the front end of the pipe p-2 into the joint pipe p-3 as well as the straight restraint arrangement between the corresponding pipes p-1 and p-2 for the plumbing work. The preparation of the fitting pipe joints can be finished.

6A and 6B, the pinion gear 32 may be pushed back or pulled forward or backward by using the shift lever t of each of the ratchet handles 33. ) Continue to rotate only in the direction set in advance by the switching lever (t), so that the joint work between the pipes (p-1) and (p-2) can be performed even in a narrow work space such as the trench space. It is possible to simplify the driving of the conveying body (3).

As a result, a pair of the transfer member 3 rides the guide bars 22 to the joint pipe p-3 in accordance with the engagement rotation driving of the pinion gear 32 using the operating table 4. At the same time, the pipe (p-2) is conveyed together by the crimping clamp (1) linked to both sides of the conveying body (3) is fitted into the fitting pipe (p-3) Pipe (p-1) (p-2) joint is made.

Finally, after the above-described work process, the pipes (p-1) (p-2) after the completion of the joint work using the stump, etc., well maintained horizontally, then assembled state of the joint pipe (p-3) After the hydraulic pressure test, the soil cover work is completed to finish the piping work.

On the other hand, by tying the traction cord to the operating table (4) and pulling or pushing the traction cord directly using an excavator to drive the conveying member (3), it is possible to carry out the pipe joint work and the work thereby It can also have the effect of reducing manpower.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various modifications may be made without departing from the scope and spirit of the invention.

A: pipe joint, 1: crimp clamp, 2: fixture
3: conveying body, 4: operating table, 11: upper arch band
12: Lower arch band, 21,21 ': 1st, 2 jig, 21a,: Durum hole
21b: fitting hole, 22: guide bar, 31: transfer bed
31-1, Closing Block, 31-11: Receptacle, 31-12: Binding Key
31a: through hole, 32: pinion gear, 33: ratchet handle
41: vertical rod, 42: horizontal rod, 111: seating piece
111a: first incision groove, 112: second handle, 121: close contact
121a: second incision groove, 122: hinge, 123: eye bolt
124: pressurized nut, 125: holder, 211: first handle
221: insertion projection, 222: rack gear, 331: central axis

Claims (7)

A crimping clamp having a semi-circular upper arch band for covering the upper end of the coupled pipe of the joint pipe, and a lower arch band surrounding the lower end of the pipe and for cooperative assembly with the upper arch band; The first jig is provided to guide the opposite ends of the crimping clamp and is supported in close contact with the end of the joint pipe from the other pipe expanded by the joint pipe, and has a downwardly-opened end hole for constraining the upper outer diameter of the pipe. A fixed body having a pair of guide bars disposed at both ends of the first jig in the compression clamp side and provided with a rack gear at one side thereof; A transfer bed having a through-hole for accommodating the guide bar to be driven forward and backward through the guide bar of the fixed body, respectively coupled to both sides of the compression clamp, and hinge-assembled at one end of the lower side of the transfer bed to the rack gear And a pinion gear that is rotatably gear-engaged and a latch handle that rotates the pinion gear in one direction when the pinion gear is rotated to fit the pipe end into which the crimping clamp is coupled. A pipe joint comprising a conveying body for conveying to be fit;
In the crimping clamp, the upper arch band, a seating piece to which the upper end of the conveying body is assembled is formed by extending in an outward direction, and the seating piece has a first cutaway groove which is opened in one direction and is formed on one side. In the lower arch band, the close contact pieces arranged close to the lower side of the seating piece are respectively bent and extended from both ends, and the close contact piece is formed in the center with a second cut groove having the same shape as the first cut groove. An eye bolt capable of receiving the rotation of the tip portion into the first and second incision grooves is assembled by a hinge protruding outward from the arch portion adjacent to the lower side, and is coupled to the eye bolt tip to press the seat piece downward. The press nut is further provided;
The fixed body is composed of a pair of first jig and second jig which are spaced apart before and after with the crimping clamp interposed therebetween and fixed to both ends of the guide bar;
In the transfer bed, a finishing block for mounting and mounting each of the seating pieces is laminated and assembled at the upper end, while in the finishing block, a receiving end for embedding a portion of the seating piece is formed at the upper center portion;
The upper end of the pair of latch handles pipe joints, characterized in that the operating bar consisting of a vertical rod coupled to the upper end of the latch handle and a horizontal rod connecting between the vertical rods. delete delete delete delete delete delete

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