KR910008239B1 - Divergent socket compensating fluid-mass - Google Patents

Abstract

A branch socket for making up for flow rate decrease, when branching a passway from a main pipe, includes a split washer splited into a concave part and a tightening part, a pair of bolt and nut, a socket with an inside passway, and a packing. When assembling this branch socket, firstty the split washer connecting a tension wire is placed into the branching hole of the main pipe, then the socket is contacted to the outer surface around the branching hole along with the packing. Finally the nut is assembled to the bolt while pulling out the tightening wire.

Description

Branch socket compensates for reduced flow

1 is an exploded perspective view of the branch socket of the present invention.

2 is a cross-sectional view showing a state in which the branch socket of FIG. 1 is fastened to a pipe.

3 is a cross-sectional view taken along the line A-A of FIG.

4A is a plan view of the A-A line of FIG.

4b is a cross-sectional view taken along the line B-B in FIG.

4C, 4D, and 4E are cross-sectional views taken along lines C-C, D-D, and E-E of FIG.

5 is an exploded perspective view of another embodiment of the branch socket of the present invention.

6 is a cross-sectional view showing a state in which the branch socket of FIG. 5 is connected to the pipe.

7 is a cross-sectional view taken along the line A-A of FIG.

8 is a front view and a partial cross-sectional view of another embodiment of the branch socket of the present invention.

Figure 9a is a front view and a partial cross-sectional view of another embodiment of the branch socket of the present invention.

FIG. 9B is a cross-sectional view taken along the line A-A of FIG. 9A. FIG.

Figure 10a is a cross-sectional view of another embodiment of the branch socket of the present invention.

10B is a cross-sectional view taken along the line A-A of FIG. 10A.

10C is a cross-sectional view taken along the line B-B in FIG. 10A.

* Explanation of symbols for main parts of the drawings

10: Boult 11: Bolt Head

20 Nut 31 Split Washer

36: part of the split washer 35: bottom of the part

38: inlet 40: socket

43: upper socket 45: passage

46: tightening part 18, 49: outlet

50,80 Tension wire 60 Tightening hole

61: Piping 70: Packing

90: guide 100: connecting branch

110: separate washer M: tightening part

P: Nut Body

The present invention relates to an apparatus for attaching a socket to a pipe by using a split washer, and in particular, the flow rate of the connection pipe by covering the part to be tightened when tightening the split washer and the socket on the outside of the pipe from one side of the pipe. It relates to a branch socket that compensates for a decrease in flow rate that prevents this decrease.

When attaching a split washer with a tension wire to the fastening hole of the pipe from one side and pulling the tension wire from the outside, the split washer is attached to the inner surface of the pipe while the socket is attached to the outside of the pipe while screwing the split washer to the inner surface of the pipe. Because of this and the bolt head that tightens it, the flow rate is reduced by blocking the fluid flow.

In order to reduce such a decrease in flow rate, there are utility model registration applications Nos. 87-16117, 89-1384, and 89-1997, which are the applicants of the present application, which form a recess having an insertion surface on which a bolt head is to be seated at the center of a split washer. The bolt head is inserted into the main part, thereby reducing the protrusion.

In this case, the projecting portion in the pipe has an effect of reducing, but the branch pipe to be connected to the branch socket fastened to the pipe, the result of the reduced flow due to the formation of the recess formed in the split washer.

In other words, the split hole is inserted into the piping hole of the pipe, the flange of the bolt head or the union socket is caught in the recess, and the hole through which the fluid passes is only the hole of the union socket.

Therefore, there is a problem that the fastening hole of the pipe must be at least as large as the area of the sum of the flange and the two sockets than the connecting pipe.

Such excessive fastening holes may reduce the strength of the main pipe, the size of the fastening device should be large, and the manufacturing factor will be increased.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a device in which there is almost no protruding portion on the inner surface of the pipe to reduce the flow rate, and the branch socket for branch pipe connection also provides a device that compensates for the decrease in flow rate. By not penetrating the fastening hole does not reduce the strength of the pipe, but also to provide a device that can reduce the manufacturing cost by reducing the size of the fastening device while passing the same flow rate.

Therefore, the main structural feature of the present invention, in the one side of the pipe concealed the back side of the cylindrical tube-shaped recessed part connected to the fastening hole and the split washer having a tightening part in the socket in close contact with the outside of the pipe A device for attaching a socket to a pipe by tightening a tensioning part of a split washer and a tightening part inside a socket with a bolt and a nut by pulling a tension wire. A split washer with a tightening part at the bottom, a socket, a bolt, a nut, and a packing formed in the socket between the socket upper surface closely contacted to the outer side of the pipe and the tightening part formed inside the socket, and a split washer at the fastening hole. Insert the top of the socket together with the packing on the outer side of the fastening hole, and pull the tension wire passing through the inside of the socket to the outside of the fastening hole. The main part including the tightening part comes out, and the tightening part on the bottom of the recess and the tightening part inside the socket are tightened with bolts and nuts to attach the socket to the pipe.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is an exploded perspective view of a branch socket according to the present invention, and includes a split washer 31, a bauder 10, a nut 20, a socket 40, and a packing 70.

The partition washer 31 forms a recess 36 having an inner surface in which the bolt head 11 is seated at the center of the circular washer, and a tightening portion M at which the bolt head 11 can be caught by the recess bottom 35. A hole is drilled in the center so that a furnace flange is formed, and the inlet 38 through which the liquid and the like passes through the bolt head 11 on the side of the recess 36 is also drilled. The height of the bolt head 11 to be inserted into the insertion inner surface of the recess 36 is as low as possible, or the hemispherical round head is used to increase the inlet 38 and increase the flow rate.

The circular washer is cut into sidewalls of the recessed part 36 side by side to enter the fastening hole 60 to form a rectangular washer or an elliptical split washer 31. For reference, the recess 36 of the circular washer may also be bisected along the center to be a pair of half-moon split washers 31. However, in the present embodiment, the former rectangular split washer 31 is used.

Moreover, the trough through which the protrusion 17 on the side of the bolt 10 passes is formed in the recess bottom surface 35.

The bolt 10 should be large enough so that the bolt head 11 is caught by the tightening part M located on the bottom face 35 of the split washer and not block the inlet 38, and the lower bolt 13 has a bullet shape. Guide 90 is tightened with tension line 80. The protrusion 17 protruding on the side of the bolt has a function of engaging with the groove 47 formed in the tightening portion 46 inside the socket and preventing the nut 20 from turning along with the nut 20.

The hole 14 can be drilled up and down in the upper and lower portions of the bolt 10 to allow liquids to pass therethrough. This becomes a union socket shape and liquids can pass through the holes 14 to reduce the size of the inlet 38. It has an effect. The nut 20 can use a normal nut.

The upper surface 41 in close contact with the socket 40 and the outer surface of the pipe 61 is curved, and a portion of the packing 70 may be inserted to form the recessed portion 44 as necessary. The inner side of the socket is formed between the upper surface of the socket 41 and the tightening portion 46, the passage 45 through which the liquid passing through the inlet 38 of the split washer and the tightening portion 46, and the bolt shaft hole 48 and There is a groove 47 formed therein to engage with the protrusion 17 formed on the bolt shaft to prevent it from turning when tightened with the nut 20. The packing 70 selects a shape and a material according to the use part, the use pressure, the type of liquid, and the like.

FIG. 2 is a cross-sectional view showing a state in which the branch socket of FIG. 1 is fastened to the pipe hole 60. As shown in FIG.

3 is a cross-sectional view taken along line AA of FIG. 2, wherein the lower pipe 42 is fitted with a branch pipe 100 to be connected, and the diameter of the connecting branch pipe 100 is approximately equal in size to the recess 36 in the cylindrical tube shape of the split washer. As can be seen, this indicates that the fastening hole 60 can be almost the size of the connecting pipe 100, and the obstacle caused by the tightening part M of the split washer passes through the inlet 38 and the socket inner passage 45 It can be seen that the flow rate is not reduced because the connection pipe can be diverted to bypass).

The guide 90 connected to the lower portion of the bolt 13 may be removed together with the tension line 80 when the tightening is completed.

4A is a plan view of the AA line of FIG. 3, where the width W of the split washer can be made smaller than the fastening hole 60 in the pipe, and the size of the fastening hole 60 and the hole 14 of the bolt is viewed. Although there is a significant gap, according to the present invention, the flow rate flowing into the fastening hole 60 size is such that a significant flow rate outside the hole 14 can flow out of the passage 45.

4B is a cross-sectional view taken along the line B-B of FIG. 3, wherein a plurality of inlets 38 are formed on the side of the recess 36, and the size and quantity of the inlets 38 are determined in consideration of the flow rate of the connecting branch pipe 100. FIG.

4C is a cross-sectional view of the CC line of FIG. 3, in which the passage 45 is formed in the socket 40, and the bolt shaft hole 48 and the groove 47 are formed in the tightening part 46, and thus the protrusion of the bolt is formed. (17) enters and interlocks.

4D is a cross-sectional view taken along the line D-D in FIG. 3, in which the outlet port 49 is formed at the tightening portion 46, which passes through the same amount as the flow rate through the passage 45. As shown in FIG. Of course, part of the bolt hole 14 also flows out.

4E is a cross sectional view taken along line E-E of FIG. 3, showing that the bolt 10 and the nut 20 are tightened inside the socket.

5 is an exploded perspective view of another embodiment of the present invention, which comprises a split washer 31, a bolt 10, a socket 40, a nut 20, a separate washer 110, and a packing 70.

The split washer 31 is the same as the description of the split washer 31 in FIG. 1 and is divided into two parts so as to penetrate the center of the recess 36. In addition, the tension line 50 is connected to the recess 36 so that, unlike in FIG. 1, a pair of split washers is formed in the fastening hole 60 before the bolt 10, as in Utility Model Registration No. 89-1997. (31) is inserted, and then the bolt head 11 portion is inserted, and the tension line 50 is pulled so that the flange portion 35 of the recessed portion 36 of the split washer 31 is caught on the bottom of the bolt head. When there is a protrusion 17 on the bolt shaft, a recess 37 is formed in the recess bottom 35.

The bolt 10, the socket 40, the packing 70, and the like are the same as those in FIG. 1, and the bullet guide 90 is not required to completely insert the entire bolt 10 into the fastening hole 60. Although not necessarily required, it is convenient to utilize the tension line 80 connected to the bolt when tightening with the nut 20.

The separate washer 110 is a tightening part (M) of the split washer at the bottom of the bolt head by inserting a pair of split washer 31 and the bolt head 11 into the fastening hole 60 and pulling the tension wire 50. A separate washer 110 is used when the flange portion is caught and attracted to the outside of the fastening hole, and the tension line hole 111 is used to penetrate the tension line 50 to thereby accurately attract.

In addition, when the protrusion portion 112 protrudes around the bottom of the bottom portion 36, the irrigation washer 31 has an effect of preventing the bolt head 11 from being separated from the bolt head 11. Tighten the bottom surface 35 may have a stronger tightening force.

FIG. 6 is a cross-sectional view showing the state in which the branch socket of FIG. 5 is fastened to the fastening hole. The bolt head 11 is hung on the recess bottom 35, and the protrusion circumferential ring 112 surrounds the outer bottom of the recess bottom. It can be seen that the 31 is not separated from the bolt head (11).

FIG. 7 is a cross-sectional view taken along line AA of FIG. 6, in which the inlet 38 is formed in the recess 36, the passage 45 is formed inside the socket, and the outlet 49 is provided in the tightening portion 46. It indicates that the liquid and the like via the bypass flows through the passage 45 to the connecting pipe (100) side.

The branch sockets of this embodiment are rigid as the split washers 31 are paired when the two are thin or soft materials such as plastic pipes or rubber appeals, and the inner surface of the fastening hole 60 is completely in contact with each other. (11) to wrap it is to prevent the separation and safety of the fastening.

8 is a front view and a partial cross-sectional view of another embodiment of the branch socket of the present invention, with the split washer 31, the union socket 10, the annular bracket 40, the flange nut 20, and the packing 70, 70 '. It is done. The division washer 31 is the same as the description of FIG. 5.

The union socket 10 has a form in which the shaft length is shortened at the bolt 10 of FIG. 5 and connected to the socket tube 16 of the diameter of the connecting tube tube diameter larger than the shaft diameter. The screw portion 19 to be tightened with the nut and the outlet port 18 are formed on the upper side thereof, and there is a hole 12 through which the tension line 50 connected to the split washer 31 passes through the tension line 50. .

In addition, the protrusions 17 protrude from the outer side of the socket tube 16 to prevent them from turning when tightened with the threaded portion 19 of the union socket with the flange nut 20. The annular bracket 40 is formed in the annular bracket of Utility Model Registration Application No. 89-1997 to form a passage 45 through which the liquid or the like via the inlet 38 of the split washer flows out to the outlet 18.

The protrusion 17 of the union socket enters and has a recess 47 to be firmly tightened when tightening with the flange nut 20. The flange nut 20 is in close contact with the annular bracket 40 by using the packing 70 'on the flange, one side is tightened with the threaded portion 19, and the other side is tightened with the connecting pipe 100. The packing 70, 70 'selects a material and a shape according to a use purpose.

Such a branch socket has the same shape as the socket 40 is separated from the upper part of the branch socket of FIG. 5, and the annular bracket of the present embodiment is separated into the upper part of the socket and the flange nut is lowered. It is the same as the embodiment of FIG. That is, the liquid and the like passing through the passage 45 formed in the annular bracket 40 flows out into the outlet 18 formed in the union socket and flows into the branch pipe to be connected to the flange nut 20.

Figure 9a is a front view and a partial cross-sectional view of another embodiment of the present invention, as shown in the Utility Model Registration No. 87-23647 when the diameter of the connecting pipe is large and tightened with a plurality of tightening parts inside the socket 40 It is a structure for attaching the large socket 40 to the pipe, and consists of a split washer 31, the socket 40, the bolt 10, the nut 20 and the packing 70 and the like.

The partition washer 31 has a recess 36 and an inlet 38 formed therein as shown in FIG. 5, and a female screw 20 is formed at the tightening portion M to tighten the bolt 10. The tension line 50 is attached as needed. The socket 40 forms a passage 45 through which the liquid, etc., passing through the inlet 38 passes, and the obstacle portion of the branch pipe branch bypasses the passage 45 to compensate for the decrease in flow rate.

FIG. 9B is a cross-sectional view taken along line BB of FIG. 9A, and the bolt shaft 10 is inserted into and tightened on the plurality of tightening portions 46 inside the socket 40, so that even if the socket 40 is relatively large, the fastening hole of the pipe ( 60) It can be tightened evenly and firmly around the periphery. If necessary, the tension line hole 41 is drilled in addition to the bolt hole 48 and penetrated through the tension line 50.

Even in this embodiment of the branch socket, it can be seen that the diameter of the relatively large branch pipe and the size of the fastening hole 60 of the pipe 61 can be bypassed due to the formation of the passage 45 inside the socket 40 and there is no significant difference. have.

Figure 10a is a cross-sectional view of another embodiment of the present invention, the tightening portion (M) located on the bottom portion 35 is to have a female screw portion 20, as shown in the embodiment of Figure 9, the female screw portion 20 The nut part P having a side face is inserted into the hole formed in the side of the recessed part 36 of the split washer and caught in the hole, and the tightening part of the socket is inserted into the female screw part 20 (P-1) formed in the nut body P. Tighten with bolt 10 to 46 to allow socket 40 to attach to the piping.

At this time, the hole drilled in the recessed part 36 of the split washer may also be utilized as the inlet 38, and the inside of the socket forms a passage 45 through which the liquid of the inlet 38 passes.

The nut body (P) has a tightening female thread (P-1) and a protrusion ring (P-2) surrounding the outer surface of the recess (36) to prevent the pair of split washers (31) from being separated as shown in FIG. When the nut body P is tightened with the bolt 10, the protrusion P-3 may protrude so that it does not turn, and it may be caught by the visible portion 46.

FIG. 10B is a cross-sectional view taken along line BB of FIG. 10A, in which the passage 45 is located inside the socket 40, and the nut 36 is inserted into the recess 36 to the side, and the hook bottom ring 35 of the nut is hooked. (P-2) indicates that the recess 36 is wrapped.

10C is a cross-sectional view taken along line CC of FIG. 10A, in which an outlet port 49 is formed in the tightening part 46, and a nut P-3 is inserted into the recess 47 of the tightening part 46, and the bolt (10) Do not turn when tightening on the screw (P-1).

In the above, the tightening portion M of the split washer is tightened by engaging the flange 11 of the bolt head or union socket as in the embodiment of FIGS. 1, 5, and 8, and FIG. As shown in FIG. 10, the female screw portion 20 is formed on the recessed bottom face 35 of the split washer or the nut body P is inserted into the side face of the recessed part 36 as shown in FIG. 20: P-1) is formed and fastened to the socket 40, and the bolt is attached to the recess bottom 35 of the split washer or the nut body P of FIG. 10 is bolted to the recess bottom 35. By attaching the socket 40, the tightening portion M of the split washer can be used in various ways, but in any case, the inlet 38 formed in the recess 36 of the split washer is tightened at the bottom of the recess 35. Above the site (M) it will be bypassed.

Therefore, by using the branch socket of the present invention, even if the fastening hole of the pipe is small enough to the diameter of the connecting pipe, the flow rate is compensated for by reducing the flow by passing it through the formation of a passage to bypass the obstacles inside the socket, It does not have to worry about weakening the pipe strength by not drilling excessive fastening holes in the pipe, and it can reduce the production cost by miniaturizing the branch socket, and it can be widely used because the branch pipe can be connected even if the pipe diameter is small. Has the effect of.

Claims (5)

On one side of the pipe 61 concealed on the back side, a cylindrical tubular recessed part 36 having a tension line 50 connected to the fastening hole 60 and a split washer 31 having a tightening part M are inserted. A device for attaching a socket to a pipe by tightening a tightening part (M) of a split washer and a tightening part inside a socket with a bolt (10) and a nut (20) which are pulled out of the tightening hole at the outer side of the fastening hole. Of the split washer 31 having a tightening portion M at the inlet 38 and the recess bottom 35 on the side of the cylindrical portion 36 in the form of a cylindrical tube to be inserted into A socket 40 having a passage 45 formed in the socket between the upper surface 43 and the fastening portion 46 formed in the socket, a bolt 10, a nut 20, and a packing 70; Insert the split washer 31 into the fastening hole 60, and pull the tension wire 50 passed through the inside of the socket against the fastening hole outer surface 43 together with the packing 70 to the outside of the fastening hole. The concave part 36 including the inlet 38 of the washer and the tightening part M are brought out, and the tightening part M of the lower part 35 and the tightening part 46 inside the socket are bolted 10 and the nut 20. Branch socket to compensate for the flow rate reduction, characterized in that the socket is attached to the pipe (61) by tightening. The branch socket according to claim 1, wherein the franchiser portion (11) of the union socket (10) is caught by the tightening portion (M) of the recessed bottom surface (35). The branch socket according to claim 1, wherein the tightening portion M of the recess bottom is a nut. 4. The branch socket according to claim 3, wherein the tightening portion M is a separate nut body P inserted into the recessed portion 36 and caught. The branch socket of claim 2, wherein a tension line (80) is attached to the union socket (10).

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