KR100939038B1 - Assembly of press wheel for conneting pipes - Google Patents

Abstract

PURPOSE: An assembly of a press wheel for connecting pipes is provided to prevent leakage due to the shortage of compression force of a sealing ring by pressing down it with an inner wheel of a press wheel body. CONSTITUTION: An assembly of a press wheel for connecting pipes comprises a gland main body(10), a bolt mounting part, a spike housing(30), a movable member(40), a spike(50), and an ejecting pin(70). The movable member is arranged inside the spike housing. An incline(41) of the movable member is pressed against the inside surface(31) of the spike housing. The spike is connected to the movable member. A mounting hole(32) is formed on the bottom of the spike housing. A rubber packing(60) is inserted into the mounting hole. The Ejector pin is combined with the movable member. The ejecting pin is assembled to the movable member through a rubber packing. A head part(71) of the ejecting pin is inserted into the rubber packing. An elastic member(74) which is inserted into a stem part(72) of the ejecting pin is arranged in a hole(42) of the movable member. A thread(73) formed on the upper end of the stem part is projected from the movable. A nut(75) is fastened onto the thread.

Description

ASSEMBLY OF PRESS WHEEL FOR CONNETING PIPES

The present invention relates to a push-wheel assembly for pipe connection, and more particularly, the abnormally high pressure is generated inside the pipe line and the connection pipe connected to the socket pipe is pushed out of the socket pipe, or when the connection tube shrinks due to the low temperature in winter The present invention relates to a pressure-retaining assembly for pipe connection that can prevent the leakage of force to pressurize the sealing ring.

Korean Patent No. 10-0752359 (registered on August 20, 2007) introduces a "prevention prevention ring for cast iron pipes having different spikes of two days".

The anti-separation pressure ring for cast iron pipes having spikes of different heights of the two blades includes a ring-shaped coupling case in which a spike housing is formed radially; A tightening bolt coupled to the spike housing formed on the ring-shaped coupling case; In the anti-falling pusher for the cast iron pipe is composed of a spike connected to the tightening bolt and assembled to the spike housing, the spike housing is formed on a line line connecting the outer side of the coupling case inclined from the center point formed in the ring-shaped coupling case, The spike is composed of a spike blade formed with two blades of different heights in the horizontal direction at the bottom of the bolt locking jaw is formed contact surface groove.

However, the drop prevention pressure ring for cast iron pipe having a different spike height of the two blades is bound to the connection pipe using a fastening bolt to fasten the spike to prevent the separation of the pipe, at the time of installation Inserting spikes into the insertion hole and tightening the connection pipe using the fastening bolt takes a long time, there is a problem that one of the fastening bolts of each coupling portion is not fastened, the connection pipe is not fully tightened.

Accordingly, an object of the present invention is a movable member is disposed inside the inclined spike housing, the movable member is coupled to the movable member in the process of being raised along the inclined inner surface of the spike housing by the support member Is moved toward the connecting pipe, thereby providing a pressure-bearing assembly for pipe connection in which the work of tightening the joint bolt can pressurize the sealing ring and the spike can grip the connecting pipe.

Another object of the present invention is that, when tightening the joint bolt, even if the spike grips the connecting pipe before the inner ring of the pressing body presses the sealing ring, the elastic member of the mil pin is compressed or the flake piece penetrates the movable member, thereby The inner ring portion of the pressure ring body as the pressure ring body is moved toward the socket tube to sufficiently press the sealing ring, to provide a pressure ring assembly for pipe connection that can prevent the phenomenon of leakage due to insufficient pressure of the sealing ring.

One example of the pipe assembly for the pipe connection according to the present invention for achieving the above object is a bolt mounting portion and the spike housing is mounted to the joint body is mounted alternately, the inner surface is movable inside the inclined spike housing The member is disposed, the inclined surface of the movable member is in close contact with the inner surface of the spike housing, the spike is coupled to the movable member, the mounting hole is formed in the lower surface of the spike housing, the rubber packing is fitted into the mounting hole and fixed In the pipe connecting pressure assembly assembly in which the mill pin is coupled to the movable member through the rubber packing, the head of the mill pin is fitted to the packing, the elastic member fitted to the stem of the mill pin is disposed in the hole of the movable member, A spiral portion formed at the top of the stem portion protrudes from the movable member, and the nut is fastened to the spiral portion. All.

The elastic member is characterized in that any one of a spring or elastic rubber.

Another example of the pipe assembly for the pipe connection according to the present invention is a bolt mounting portion and the spike housing is mounted to the joint body is mounted alternately, the movable member is disposed inside the spike housing inclined inner surface, the movable The inclined surface of the member is in close contact with the inner surface of the spike housing, the spike is coupled to the movable member, the mounting hole is formed in the lower surface of the spike housing, the rubber packing is fitted into the mounting hole and fixed, and the pin is pushed through the rubber packing. In the push-wheel assembly for pipe connection combined with the movable member, a spiral portion is formed at the upper end of the hole formed in the movable member, and the spiral portion formed at the upper end of the spiral portion and the mill pin is fastened.

A ratchet protrusion is formed on the inclined inner surface of the spike housing.

The movable member is characterized in that the ratchet protrusion is formed on the inclined surface.

As a result, the pressure-bearing assembly for pipe connection according to the present invention can pressurize the sealing ring only by tightening the joint bolt and the spike can grip the connecting pipe, and when the joint bolt is tightened, the inner ring of the pressure-bearing body closes the sealing ring. Even if the spike grips the connecting tube before pressurization, the elastic member of the mill pin is compressed or the push piece moves up through the movable member, so that the inner ring portion of the pressing body can press the sealing ring sufficiently while the pressing body is moved toward the socket tube. Therefore, there is an effect that can prevent the phenomenon of leakage due to insufficient pressure of the sealing ring.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

1 and 2, the pressure-bearing assembly for pipe connection according to the first embodiment of the present invention includes a bolt mounting portion 20 and a spike housing 30 in which a joint bolt 25 is mounted on the pressure-bearing body 10. Arranged alternately, the movable member 40 is disposed inside the spike housing 30 in which the inner surface 31 is inclined, such that the inclined surface 41 of the movable member 40 is the inner surface of the spike housing 30. In close contact with the 31, the spike 50 is coupled to the movable member 40, a mounting hole 32 is formed in the lower surface of the spike housing 30, and the rubber packing 60 is formed in the mounting hole 32. ) Is fitted and fixed, and the mill pin 70 is coupled to the movable member 40 through the rubber packing 60.

Here, the head portion 71 of the mil pin 70 is fitted into the packing 60, the elastic member 74 fitted into the stem portion 72 of the mil pin 70 is a hole 42 of the movable member 40. The spiral portion 73 disposed at the upper end of the stem portion 72 protrudes from the movable member 40, and the nut 75 is fastened to the spiral portion 73.

In the pressure ring 10, the inner ring part 11 and the outer ring part 12 are connected by the horizontal part 13, and the spike housing 30 is formed in the horizontal part 13.

Referring to FIG. 3, the movable member 40 has a hole 42 formed in the center thereof, an inclined surface 41 formed on one side thereof, and a pair of grooves 43 facing each other on the opposite side of the inclined surface 41. Is formed, the grooves 43 by the insertion portion 44 is formed.

3 and 4, the spike 50 has an arc-shaped edge blade 51 formed at one side thereof, and a plurality of pointed teeth 52 are formed at the lower portion of the edge blade 51. Coupling grooves 53 are formed at opposite sides of the edge blade 51, and coupling protrusions 55 are formed at both sides of the opening 54 of the coupling groove 53.

Referring to FIG. 3 again, the rubber packing 60 is formed in an elliptical shape, and a hole 61 through which the support member 70 penetrates is formed to be biased to either side.

Referring to FIG. 3 again, the milp pin 70 has a stem portion 72 integrally formed at an upper end of the head portion 71, and a spiral portion 73 is formed at an upper end of the stem portion 72. An elastic member 74 is fitted to the stem portion 72, and a nut 75 is fastened to the spiral portion 73.

The elastic member 74 is a spring or elastic rubber. That is, although the elastic member 74 is shown as a spring in Figures 2 and 3, the present invention may use elastic rubber instead of the spring.

The elastic member 74 prevents the movable member 40 from being raised and lowered again along the inner surface 31 of the spike housing 30.

Coupling structure of the components of the pressure-wheel assembly for pipe connection according to the present invention configured as described above will be described with reference to FIG.

The engaging protrusion 55 of the spike 50 is fitted into the recess 42 of the movable member 40, and the insertion portion 43 of the movable member 40 is inserted into the engaging groove 53 of the spike 50. The rubber packing 40 is disposed below the movable member 40, and is fitted into the movable member 40 of the stem portion 72 of the mil pin 70, and the spiral portion 73 formed on the upper end of the stem portion 72. ) Is protruded from the movable member 40, the nut 75 is fastened to the spiral portion (73).

6 and 8 will be described with reference to FIGS. 6 to 8 the process and components of connecting the connection pipe (P2) to the socket pipe (P1) using the pressure-bearing assembly for pipe connection according to the present invention configured as described above.

(A) The sealing ring 80 is placed in the socket inclined portion 94 of the socket tube P1.

(B) Insert the pressure wheel assembly according to the present invention to the connection pipe (P2).

(C) The end of the connecting pipe P2 is inserted into the sealing ring 80 placed in the socket pipe P1.

(D) The pressure bearing assembly according to the present invention fitted in the connecting pipe P2 is brought close to the socket pipe P1, and then the lower locking portion 26 of the joint bolt 25 is lowered to the flange 95 of the socket pipe P1. Fasten the nut 27 to the joint bolt 25. At this time, the mill pin 70 is in close contact with the water distal tip 96 of the socket tube P2, and the inner ring 11 of the pressure bearing body 10 is in close contact with the sealing ring 80 (see Fig. 6).

(E) Afterwards, as shown in FIG. 7, when the nut 27 of the joint bolt 25 is tightened, the pressing body 10 is moved toward the socket tube P1 as shown by the arrow 15, and the pressing body ( The inner ring portion 11 of 10) pressurizes the sealing ring 80, so that the sealing ring 80 seals between the socket pipe P1 and the connection pipe P2. And, when the push-wheel body 10 is moved toward the socket tube (P1), the mill pin 70 is in close contact with the water distal end 96 of the socket tube (P2), the mill pin 70 is relatively movable member ( 40) is to push up. As a result, the inclined surface 41 of the movable member 40 is raised along the inclined inner surface 31 of the spike housing 30, so that the movable member 40 moves the spike 50 toward the connecting pipe P2. By pushing, the spike 50 tightens the connecting pipe P2. At this time, the mill pin 70 is also moved toward the connection pipe (P2), thereby compressing the rubber packing (70).

(F) In the process of (e), when the spike 50 first grips the connecting pipe P2 before the sealing ring 80 is completely compressed by the inner ring portion 11 of the pressure bearing body 10. As shown in FIG. 8, when the nut 27 of the joint bolt 25 is further tightened, the pressure bearing body 10 is further moved toward the socket tube P1 as shown by the arrow 15. The inner ring portion 11 of the pressurizing the sealing ring 80, the sealing ring 80 is completely sealed between the socket tube (P1) and the connection pipe (P2). This further tightens the nut 27 of the joint bolt 25 so that when the pressing body 10 is further moved toward the socket tube P1 as shown by the arrow 15, the movable member 40 is relatively stopped in the state of being stopped. This is because the mill pin 70 is lifted up so that the mill pin 70 is drawn into the hole 42 of the movable member 40 while the spring 74 is compressed.

Referring to FIG. 9, in the case of the push-wheel assembly for pipe connection according to the first embodiment of the present invention assembled as described above, the length of the connection pipe P2 is shrunk by a low temperature in winter, or abnormal high pressure is generated inside the pipe. Even if the connecting pipe P2 is pushed out of the socket pipe P1 to some extent, the pressure bearing body 10 is firmly assembled to the socket pipe P1 by the joint bolt 25, and there is no fear of being pushed out. As long as 10) is not pushed out, the inner ring part 11 formed in the pressure wheel main body 10 is not pushed out, so the sealing function of the sealing ring 80 is not affected. Then, when the connecting pipe P2 is pushed back, the edge blade 51 and the teeth 52 of the spike 50 are lifted in the direction of the arrow 57, so that the edge blades 51 and the teeth of the spike 50 are raised. The mold portion 52 can grip the circumference of the connecting pipe P2 more reliably.

Referring to FIG. 10, in the pipe connecting pressure assembly according to the second embodiment of the present invention, a spiral portion 43 'is formed at an upper end of a hole 42' formed in the movable member 40 ', and the spiral portion 43 'and the spiral portion 73' formed at the upper end of the mill pin 70 'are fastened, a ratchet protrusion is formed on the inclined inner surface 31' of the spike housing 30 ', and the movable member 40 is formed. Is formed on the inclined surface 41 of '), and when the movable member 40' is raised, the ratchet protrusion formed on the inclined surface 41 of the movable member 40 'is inclined to the spike housing 30'. Although not caught by the ratchet protrusion on the inner surface 31 ', the ratchet protrusion formed on the inclined surface 41 of the movable member 40' is inclined in the inclined surface of the spike housing 30 'after the movable member 40' is raised. It is the same as the pressure-bearing assembly for pipe connection according to the first embodiment of the present invention, except that it is caught by a ratchet protrusion on the side surface 31 ', thereby preventing the raised movable member 40' from being lowered again. The.

With the above configuration, the pressure-retaining ring assembly for pipe connection according to the second embodiment of the present invention has a spike 50 before the sealing ring 80 is completely compressed by the inner ring portion 11 of the pressure-reducing body 10. When the first connection tube P2 is gripped, further tightening the nut 27 of the joint bolt 25 causes the spiral of the movable member 40 'fastened to the spiral portion 71' of the mil pin 70 '. As the portion 43 'is broken, the spiral portion 71' of the mil pin 70 'and the spiral portion 43' of the movable member 40 'are released, and the movable member 40' is stopped. As the mill pin 70 is raised relative to the mill pin 70 ', the mill pin 70' is drawn into the hole 42 'of the movable member 40'. As a result, as the pressing body 10 is further moved toward the socket tube, the inner ring portion 11 of the pressing body 10 presses the sealing ring so that the sealing ring 80 is connected to the socket tube P1 and the connecting tube. It is completely sealed between (P2). In addition, with the spike 50 gripping the connecting tube, the inclined inner surface 31 'of the spike housing 30' is formed by the ratchet protrusion formed on the inclined surface 41 of the movable member 40 '. By preventing the raised movable member 40 'from lowering again, the grip of the spike 50 can be prevented from being released.

1 is a perspective view showing a pressure assembly for pipe connection according to a first embodiment of the present invention

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 showing a pusher assembly for pipe connection according to a first embodiment of the present invention.

3 is an exploded perspective view illustrating components mounted to the spike housing of FIG. 2; FIG.

4 is a perspective view of the spikes

5 is an assembled perspective view of the components mounted to the spike housing;

6 to 8 is a cross-sectional view showing an example in which the connection pipe is connected to the socket pipe by the pressure-bearing assembly for pipe connection according to the present invention.

Figure 9 is a cross-sectional view for explaining the spike action of the push rod assembly for pipe connection according to the present invention when the socket pipe is pushed back;

10 is a cross-sectional view showing the pressure-assembly assembly for pipe connection according to the second embodiment of the present invention.

Claims (5)

The bolt mounting portion 20 on which the joint bolt 25 is mounted and the spike housing 30 are alternately disposed on the pressure wheel body 10, and the inner side 31 is movable within the inclined spike housing 30. 40 is disposed, the inclined surface 41 of the movable member 40 is in close contact with the inner surface 31 of the spike housing 30, the spike 50 is coupled to the movable member 40, the spike housing ( The mounting hole 32 is formed in the lower surface of the 30, the rubber packing 60 is fitted into the mounting hole 32 and fixed, and the pin pin 70 is movable member 40 through the rubber packing 60. In the pressure ring assembly for pipe connection combined with, The head portion 71 of the mill pin 70 is fitted into the packing 60, and the elastic member 74 fitted into the stem portion 72 of the mill pin 70 is disposed in the hole 42 of the movable member 40. And a spiral portion 73 formed at an upper end of the stem portion 72 protrudes from the movable member 40 so that the nut 75 is fastened to the spiral portion 73. . The method of claim 1, The elastic member (74) is a push-wheel assembly for pipe connection, characterized in that any one of a spring or elastic rubber. The bolt mounting portion to which the joint bolt is mounted and the spike housing are alternately arranged on the pressure ring body, and the movable member is disposed inside the spike housing in which the inner surface is inclined, so that the inclined surface of the movable member is in close contact with the inner surface of the spike housing, In the pressure-bearing assembly for pipe connection in which a spike is coupled to the movable member, a mounting hole is formed in the lower surface of the spike housing, a rubber packing is fitted into the mounting hole, and the mill pin is coupled with the movable member through the rubber packing. , Spiral portion is formed at the upper end of the hole formed in the movable member, the spiral portion formed in the upper end of the spiral portion and the mill pin is fastened for pipe connection assembly. The method of claim 3, wherein And a ratchet protrusion is formed on the inclined inner surface of the spike housing. The method of claim 3, wherein The movable member is a pushpin assembly for pipe connection, characterized in that the ratchet projection is formed on the inclined surface.

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