KR100780901B1 - packing for pipe joint - Google Patents

Abstract

The present invention relates to a packing for pipe joints, and more particularly, a pipe joint inserted into and fixed to a joint of an inner pipe having an inner diameter of a predetermined size and an outer pipe or pipe insert having an inner diameter larger than the outer diameter of the inner pipe. In the packing for a cylinder, a cylindrical shape has a through hole at the center of the cross section, and has a recessed groove having a predetermined thickness in the circumferential direction at one end surface, and has a 'U' shaped cross section at the other end in the circumferential direction. Forming an annular joint projection, characterized in that it is configured by extending the stopper of the plane to the edge of the joint projection, the pipe fitting packing made of the above structure is to firmly join the two pipes by a simple structure No need for additional post-processing or fixing means to achieve cost savings. By maintaining the capacity increase the convenience of management, and, it is possible to easily remove the pipe above can be achieved also in the ease of replacement, the present invention relates to a packing for pipe joints capable of providing a comfortable working environment and economic benefits.

Pipe joint packing,

Description

Packing for pipe joints

1 is a perspective view of a pipe joint packing used in the present invention pipe connection,

FIG. 2 is a cross-sectional view taken along line AA ′ of FIG. 1;

Figure 3 is a perspective view showing a connection state of the pipe fittings and the inner pipe of the present invention,

4 is a cross-sectional view taken along the line B-B 'of FIG.

5 is a perspective view of a pipe joint packing and a pipe connection assembly using the same of the present invention;

6 is a cross-sectional view taken along the line C-C 'of FIG.

7 is a perspective view showing another embodiment of the pipe fittings of the present invention and a pipe connection assembly using the same;

8 is a cross-sectional view taken along the line D-D 'of FIG. 7;

Figure 9 is a cross-sectional view showing another embodiment of the pipe joint packing and the pipe connection assembly using the same of the present invention.

10: inner pipe 20: outer pipe

30: space part 40: outer pipe having a locking jaw

41: Packing Guide 42: Hanging Jaw

43: pipe guide 50: heat exchanger

51 pipe insertion port 52 header portion

100: pipe joint packing 110: through hole

120: recess groove 121: the inner side

122: outer portion 130: joint protrusion

140: stopper

The present invention relates to a packing for pipe joints, and more particularly, an annular pipe joint packing having a 'Y'-shaped cross section is seated in the space of the joint, and the pipe joint packing is further seated in the longitudinal direction. To secure the pipe joint packing, and to perform the secondary sealing, to minimize the amount of fluid lost from the pipe connection to the outside, and to prevent the external fluid from entering the connection, pleasant working environment and economic benefits It relates to a pipe joint packing used for pipe connection that can provide.

In general, pipes are used for transporting fluids (liquids, liquids) and powders, and they have been used for the protection of electric wires and cables when wiring in the ground or indoors. In addition to the warning boxes, the construction is required to be simple. In general, the pipe is made of easy-to-handle size and connected with various connection structures such as welding or screwing using a socket or elbow to change the pipe direction or increase the length of the pipe according to the arrangement of the pipe. Has come.

The conventional method as described above has a problem that the pipe joint is warned, but the workability is remarkably reduced, and there are problems such as cracking and prone leaking due to corrosion on the welded part. Including the incision and the incision groove, the center line is staggered while communicating with the incision, and the pipe connection structure, characterized in that the incision is in contact with the incision line of the incision and the incision groove when the clamp is tightened to form a chamber; In the pipe connecting structure for connecting the pipe using the joint and the flare nut, the end of the flare nut is formed with a step having an outer diameter less than the inner diameter of the flare nut fastening screw hole of the joint, the step and the inner diameter of the joint The space formed between them accommodates the expansion of the flare nut as the pipe expands. Although there is a pipe connecting structure, etc., such a pipe joint structure has a concave groove that cannot be formed by injection molding because it requires a post-processing process by a tip or the like, which makes the manufacturing process complicated and increases the manufacturing cost. There was a problem.

In addition, a plurality of annular protruding jaws are integrally formed at one end of the inner pipe, and a plurality of rectangular through holes facing each other are formed at one end of the outer pipe, and an inner pipe is inserted into the outer pipe and then through the hole. Although each of the hook members is inserted into the space between the protruding through the force of the pipe member for coupling the inner and outer pipe rotatable through the hook member has been applied for the structure, but only to provide a separate hook member In addition, there was a difficult problem in assembly because it must be forced in the process of fitting through the square hole, and the assembly process is complicated, because the hole must be blocked as a separate cover to prevent the detachment of the hook member. There was a problem that the coupling structure was not solid, and the thickness In the case of using other pipes, a pipe coupling is used to join the pipe and the pipe has a predetermined inner diameter, and an inner pipe member inside which the elastic coupling means is detachably inserted, and an inner diameter of the elastic coupling means of the outer pipe member. A fitting portion having a diameter that can be inserted into is formed at one end, and the fitting portion is formed with a first guide means for forming a spiral passage on the outer circumferential surface to move the elastic coupling means in the circumferential direction. Although a pipe fitting packing has been applied, characterized in that it comprises an inner pipe member formed with a second guide means rotatably seating the elastic coupling means adjacent to the pipe fittings as described above Since there are many kinds of members, it takes a lot of time to manufacture them. Was the economic burden of the non-occurrence, and the assembly process of members complex it occurred a problem that error rate increases, even the mothayeo firmly bonded structure has a problem that the property degradation smuggling.

The present invention is to solve the conventional problems as described above by the simple structure of the inner pipe and the outer pipe or the pipe inserting hole firmly coupled, and no additional post-processing or fixing means unnecessary cost reduction, after coupling By maintaining the performance of perfect smuggling, it not only improves the convenience of management, but also can be connected through a simple assembly process, greatly improving work productivity, and providing a pipe joint packing that can obtain the maximum smuggling effect with a minimum structure. The purpose is.

Pipe joint packing of the present invention for achieving the above object is a pipe joint that is inserted and fixed to the joint of the inner pipe and the outer pipe having an inner diameter larger than the outer diameter of the inner pipe of a certain size of the inner diameter In the packing for a cylinder, a cylindrical shape has a through hole at the center of the cross section, and has a recessed groove having a predetermined thickness in the circumferential direction at one end surface, and has a 'U' shaped cross section at the other end in the circumferential direction. It is characterized in that it is formed by forming an annular joint protrusion and extending a flat stopper at the edge of the joint protrusion.

Hereinafter, the configuration and effect of the present invention according to the accompanying drawings in more detail .

1 is a perspective view of a pipe fitting packing used in the pipe connection of the present invention, Figure 2 is a cross-sectional view taken along line AA 'of Figure 1, Figure 3 is a view showing a connection state of the pipe fitting and the inner pipe of the present invention. 4 is a cross-sectional view taken along line B-B 'of FIG. 3, FIG. 5 is a perspective view showing a pipe joint packing and a pipe connection assembly using the same, and FIG. 6 is a cross-sectional view taken along line C-C' of FIG. 7 is a perspective view showing another embodiment of the pipe joint packing and pipe connection assembly using the same, FIG. 8 is a cross-sectional view taken along line D-D 'of FIG. 7, and FIG. 9 is a pipe joint packing of the present invention. And cross-sectional view showing another embodiment of a pipe connection assembly using the same.

As shown in FIG. 1, the pipe fitting packing 100 used in the pipe connection of the present invention has an annular pipe fitting packing 100 having a 'Y'-shaped cross section in which a joint protrusion 130 is formed at a lower end thereof. As shown in FIG. 2, the pipe fitting packing 100 is in the form of an elongated string, and the upper end portion of the pipe fitting packing 100 is shown in FIG. 2 by the recessed groove 120. It is formed, the gap between the recessed groove 120 between the inner portion 121 and the outer portion 122 separated toward the end of the upper end is formed to be integrated and maintain a constant thickness and the end has a 'U' shaped cross section An annular joint protrusion 130 is formed.

A gap between the recess grooves 120 at the upper end of the pipe joint packing 100 is formed to be equal to or smaller than the thickness of the joint protrusion 130, and as shown in FIG. 4, the pipe joint packing 100 is continuously inserted. When put in, the joint protrusion 130 of the pipe fitting packing 100 of the upper end is press-fitted between the recess grooves 120 of the pipe fitting packing 100 of the lower end, the gap between the recess groove 120 is the joint protrusion 130 Forcibly widened by), the inner part 121 is in close contact with the inner pipe 10, and the outer part 122 is in close contact with the outer pipe 20 and is disposed between the inner pipe 10 and the outer pipe 20. In order to seal the space part 30, the planar stopper 140 extending to the edge of the joint protrusion 130 may have an inner part 121 and an outer part 122 positioned at an upper end of the pipe fitting packing 100. The entire bottom of the pipe fitting packing 100 is fitted into the concave groove 120 by being coupled to the upper side of the It is effective to prevent getting warm.

Referring to FIG. 7, the pipe fitting packing 100 used in the pipe connection of the present invention is used to connect the inner pipe 10 and the outer pipe 40 having the locking jaw 42 to be fixed. Sealing and coupling the inner pipe 10 having a hollow inner pipe 10 having an outer diameter and the outer pipe 40 having a latching jaw 42 forming a packing guide 41 having a predetermined space along one outer side thereof on one side thereof. do.

 An annular pipe fitting packing 100 having a 'Y' shaped cross section in which a fitting protrusion 130 is formed at the bottom of the packing guide 41 is seated, and the recess groove of the pipe fitting packing 100 is seated. The pipe fitting packing 100 is further seated so that the 120 and the fitting protrusion 130 correspond to each other. The pipe fitting packing 100 is a packing provided in the outer pipe 40 having the locking jaw 42. Even though the outer pipe 20 is fixed by the guide 41 and the locking jaw 42 and does not have the packing guide 41 as shown in FIG. 5, the pipe fitting packing 100 and the inner pipe 10 are provided. It can be supported by the frictional force of the outer and outer pipes 20, and when it reaches a certain limit, it is not pushed anymore, so it can be applied to the connection of the inner pipes 10 of the outer pipes 20 and the outer pipes 20 in which the locking jaws 42 are not formed. Do.

The inner pipe 10 is a conventional pipe having a predetermined thickness and a hollow formed therein, and the cross section of the inner pipe 10 is generally circular, but may be used for other types of inner pipes 10, It acts as a passage for inflow or outflow, the outer pipe 20 has a predetermined thickness similar to the inner pipe 10 and is formed in the form of a hollow inside but is formed in accordance with the outer diameter at one end The inner side is provided with a packing guide 41 and a catching jaw 42 which can form a space portion of the pipe fitting packing 100, or the inner diameter is larger than the outer diameter of the inner pipe 10. It is different from the pipe 10.

If the outer diameter of the inner pipe 10 is less than or equal to the inner diameter of the outer pipe 20, the inner pipe 10 is drawn into the outer pipe 20, and the outer diameter of the inner pipe 10 is the outer pipe 20. If greater than the inner diameter of the pipe fitting to be fitted to the locking projections 42 of the fitting, the inner diameter of the packing guide 41 is provided larger than the outer diameter of the inner pipe (10).

The pipe fitting packing 100 is an annular packing made of rubber, and serves as a gasket, and it is preferable to use a cushioning material having elasticity. When the fluid flows in the pipe joint, the pipe fitting packing is bent two to three times. According to the cross-sectional structure of (100), there is an effect of preventing the fluid from leaking twice or three times.

In addition, the cushion material is used as a material having elasticity and using a flexible and excellent adhesive rubber, natural rubber, synthetic resin, and the like, when the corrosion proceeds, the volume of the pipe joint packing 100 is reduced and the smuggling properties are replaced. It is desirable to.

The pipe fitting packing 100 has a smooth curved shape but is inserted into a space between the inner pipe 10 and the outer pipe 20 and is changed into a space shape between the inner pipe 10 and the outer pipe 20. In the process, the volume of the pipe fitting packing 100 is reduced and the adhesion between the space between the inner pipe 10 and the outer pipe 20 and the pipe fitting packing 100 is relatively increased.

In addition, the pipe fitting packing 100 used in the pipe connection structure of the present invention includes an inner pipe 10 in a structure having a pipe insertion hole 51 in addition to the joint structure of the inner pipe 10 and the outer pipe 20. It can be used to seal between the inner pipe 10 and the structure having the pipe insert 51 in communication.

As shown in FIG. 9, the inner pipe 10 is inserted into the pipe insertion hole 51 of the header portion 52 of the heat exchanger 50, and the pipe used in the pipe connection structure of the present invention for sealing is inserted into the gasket. The joint packing 100 is seated in the gap between the pipe insertion port 51 and the inner pipe 10 as in the joint of the inner pipe 10 and the outer pipe 20.

When the fluid circulates in the header portion 52 and the fluid tries to flow into the inner pipe 10 in the circulation portion of the header portion 52, the fluid is not only the inner pipe 10 but also the inner pipe 10 and the pipe insertion hole. Although it flows into the space of 51, the pipe fitting packing 100 used in the pipe connection structure of the present invention is inserted, and the fluid is stagnant, but the pipe fitting packing used in the pipe connection structure of the present invention by the pressure of the fluid ( 100 is coupled to the inlet groove 120 and the joint protrusion 130 of the pipe fitting packing 100 to be more tightly coupled to each other in a more dense structure, the sealing of the fluid circulating in the heat exchanger 50 is more Effectively done.

In addition, the size of the pipe fitting packing 100 used in the pipe connection structure of the present invention can be manufactured in various customized, so that the inner pipe 10 and the outer pipe 20 to the inner pipe 10 and the pipe insertion opening 51 According to the size of the spacing between the structure having a) can be used for the pipe joint packing 100 used for connecting the pipe of the appropriate size, in some cases to adjust the number of the pipe joint packing 100 to be seated at least one Can be used to form a separate fitting member to fit the shape of the recess groove 130,

As described above, the pipe fitting packing 100 according to the present invention, first, the inner pipe 10 and the outer pipe 20 of different sizes, respectively, the pipe fitting packing 100 by successively seating the fluid in the gap. In order to prevent the escape from being made to achieve a sealing, and also in the combination of the structure having the inner pipe 10 and the pipe inserting port 51 by pressing and fixing the pipe fitting packing 100 used for pipe connection, The structure is made of a simple structure to reduce the defect rate that can occur during manufacturing and reduced the number of maneuvers greatly improves the productivity, it is easy to remove the pipe joint structure has the advantage that can facilitate the replacement work.

The present invention is not limited to the above-described specific embodiments, and those skilled in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims, and Such changes are within the scope of the claims.

As described above, the pipe connection assembly of the present invention by the simple structure of the inner pipe and the outer pipe or pipe insertion hole firmly coupled, and no additional post-processing or fixing means can be achieved to reduce the cost, after the combination In addition to improving the convenience of management by maintaining the performance of perfect smuggling, it can be connected through a simple assembly process, greatly improving the work productivity. In addition, there is a very useful effect that can obtain the maximum smuggling effect by providing a plurality of pipe joint packing.

Claims (1)

In the pipe fitting packing is fixed and inserted into the joint of the inner pipe of the hollow pipe having a certain size of the outer diameter and the outer pipe or pipe insertion hole having an inner diameter larger than the outer diameter of the inner pipe, Cylindrical shape with a through hole at the center of the cross section, a recessed groove having a predetermined thickness in the circumferential direction at one end face, and an annular joint protrusion having a 'U' shaped cross section at the other end in the circumferential direction. The pipe fitting packing is formed by extending the stopper of the plane to the edge of the joint.

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