JPS5822677B2 - Edakanlenketsuyoedatsugite - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a first part having a crosspiece connection opening in a wall surface, and a second part configured to surround a pipe together with the first part, and the two parts are This invention relates to a branch joint for connecting branch pipes that are connected together.

A pipe is provided such that the first portion and the second portion are interconnected by two wedge-shaped members, said wedge-shaped members engaging correspondingly configured portions of the two portions on opposite sides of the tube. Branch joints for connecting are generally known.

However, certain difficulties arise when attaching two wedge-shaped members to two parts.

After the first and second parts have been placed on the top ν of the tube, when installing one of the wedge-shaped members, the two parts must be properly positioned opposite each other before installing the second wedge-shaped member. It is necessary to align them.

It is known to eliminate this problem by hingedly connecting the two parts of the branch joint together, but this type of construction is expensive to manufacture and requires the first part to be placed on the pipe. After this, it is necessary to form a hole of considerable size at the branch connection location in order to be able to drive the second part around the tube in order to place it in position on the tube. be.

The present invention provides a branch joint of the type described above, in which the first part can be placed at any branch connection position on the main pipe, and then the second part can be easily connected with the first part. This is for the purpose of

According to the present invention, the first portion includes the crosspiece connection opening;
a second part, when said parts are both formed partially cylindrical to correspond to the shape of the tube and fitted onto the tube on their respective sides). a longitudinally extending outer connecting end in one part, the connecting means being configured to engage a correspondingly shaped lip in the other part; one said connecting means on the other side having an edge and two corresponding outer connecting edges in each section, each of which is configured to engage a respective connecting edge; A plate joint for connecting a branch pipe is provided having a separate connecting member having a lip formed in the shape of a branch pipe.

Preferably, the outer connecting edges of the connecting means on said other side are inclined at an angle to each other and the lip of the connecting member is correspondingly inclined.

The first portion is also provided with a pair of outer connecting edges, each extending parallel to the longitudinal axis of the branch, such that the edges form part of the connecting means on each side. It is preferable to do so.

Additionally, the two connecting edges of the first portion are formed to have the same shape so that one of the first and second portions is 180 mm.
The first part can be evenly connected to the second part when rotated through an angle of .degree.

After the connecting edge of the first part is connected to the lip of the second part, the connecting ledge of the second part is positioned opposite the other connecting edge on the first part, thereby Connecting member first
The first part of the branch joint and its second part can be connected by a sliding fit on the still free connecting edge of the parts and the opposite connecting edge.

The inner periphery of the first portion of the branch joint is formed at an angle of 180° or more so that the first portion of the branch joint partially surrounds the pipe and is fixed at any position on the pipe. is preferred.

This can be done, for example, by clamping.

Suitable materials for such branch joints are polybutene, polyvinyl chloride, polyethylene or the like, which may be reinforced with glass fibers.

Fig. 1 is a cross-sectional view of the branch joint attached to the pipe, Fig. 2 is a view showing the first and second parts of the branch joint when separated, and Fig. 3 is the branch according to the projection of the US shape. 4 is a detailed sectional view of the connecting member and the second portion of the joint taken along the ITJ-ITJ line in FIG. 1; FIG. 4 is a detailed cross-sectional view of the connecting member and the lower saddle member of the branch joint to be connected to the connecting member; FIG. FIG. 4 is a side view of part of FIG.

FIG. 1 shows a portion 44, that is, an upper saddle member 3 having a crosspiece connection portion 4a, and a second portion, that is, a lower saddle member 4.
1 shows a pipe 1 carrying a branch fitting 2 with a.

The upper saddle part 3 has on both sides thereof connecting edges 5 which are arranged symmetrically with respect to the main axis and which extend parallel to the main axis.

The lower saddle member 4 has on one side thereof an arcuate connecting edge 6 which can be engaged with the connecting edge 5.

The lower saddle member 4 carries on its other side a shelf 7 extending obliquely in the longitudinal direction.

The connecting member 8 has a lower groove portion 20 formed obliquely relative to an upper groove portion 19 thereof, and the obliquely extending shelf portion 7 of the lower member 4 and the obliquely extending shelf portion 7 of the upper member 3 are formed inside the connecting member 8. Connecting edges 5 can be engaged and are used to connect one member 3 and 4.

That is, the connecting member 8 has an upper groove-shaped portion 19 on one side, and an upper groove-shaped recess 19a on the inner side thereof.

This upper groove-shaped portion 19 extends perpendicularly to the end face portion 13 of the connecting member 8, and this groove-shaped recess 19a engages with the upper portion 5a of the connecting edge 5 in the completed state of connection.

The other connecting member 8 includes a lower groove-shaped portion 20 having a lower groove-shaped recess 20a therein.

As can be seen in FIG. 4, the lower channel portion 20 extends slightly downward in the direction of the arrow, indicating that the connecting member 8 is a wedge-shaped connecting member.

In order to obtain a reliable connection between the upper saddle member or first part 3 and the lower saddle member or second part 4 of the branch joint, the lower saddle member or second part 4 is provided with a ledge 7. It is being

The lower part 7a of this shelf-shaped part 7 also extends downward in the direction of the arrow, so that the connecting member 8 can be easily pushed onto said shelf-shaped part 7a.

During the connection of the two saddle members, if the connecting member 8 is pushed too far, it will create tension in the upper and lower saddle members 3 and 4 of the branch joint.

To avoid this tension, one end of the connecting member 8 has an end surface 13 (see FIGS. 3 and 4) which serves as an abutment member.
(Figure).

Since the connecting member 8 may slide rearward,
The lower saddle member 4 is provided with a projecting lip 16;
This forms a concave portion 18 between the shelf portion 7 and the protruding lip 16.

In the assembled branch joint, the projecting lip 16 is accommodated in the recess 13a of the end face.

This recess 13a is closed toward the inside of the end face 13 by a closing surface 16a, which has the lip 16 at its inner end and a recess 18 between the lip 16 and the shelf 7. forming a shoulder 18a that engages with.

In this way, the lower saddle member 4 is firmly fixed to the connecting member 8.

In order to prevent displacement of the upper saddle part 3 relative to the lower saddle part 4, the ledge 7 of the lower saddle part 4 has an abutment 14 formed to engage a recess 15 of the upper saddle part 3. It is equipped with

According to one preferred feature of the invention, the ends 9 and 1
The inner peripheral portion of the upper saddle member 3 defined by 0 is 1
extending at an angle of 80° or more, thereby making the upper saddle member 3
When the tube is placed over the tube, the upper saddle member 3 is adapted to clamp the tube and fix it in place.

The operation for attaching a branch joint to a pipe is performed in the following manner.

That is, the upper saddle member 3 is fitted over the tube 1 and the ends 9 and 10 cooperate slightly elastically against the outer surface of the tube 1.

Thereafter, the connecting edge 6 of the lower saddle member 4 is brought into engagement with one of the connecting edges 5.

The operator then takes the coupling member 8 and pushes the lower saddle member 4 upwards in the direction of the other coupling edge 5 and pushes the coupling member 8 away from the obliquely extending ledge 7 and the still free The connecting member 8 can be prevented from sliding onto the connecting edge 5.

The present invention is most preferred for mounting the connecting member 8, since by mounting the upper saddle member on top of the tube, the handler's hands are free, while the lower saddle member can be placed around the tube. Being able to choose the location.

Furthermore, since only one connection H' is used, the placement of the second member at the rear of the tube cannot be carried out without great difficulty if the tube is accessible from only one side of the tube. can be omitted.

The branch joint shown in FIG. 1 further includes an internally threaded insert 12 associated with the branch joint connection 4a.

The coupling portion 4a has an inwardly bent edge 11, and the insert 12 has an outwardly bent end having an outer diameter larger than the inner diameter of the inwardly bent edge 11. The edges allow the insert 12 to be held in place.

The replaceable insert 12 can be formed with different internal diameters and threads, and can be fitted with a sealing ring 17, so that the ends of threaded tubes of different diameters can be connected to the branch fitting.

It is preferable that the insertion tool 12 has an inner diameter such that it can be fitted against the inner wall of the branch connecting portion 4a.

Features a removable threaded insert.

This branch joint is easier to manufacture than those of known constructions, which require long cooling times in order to avoid distortions of the branch connection 4a caused by the fact that the core of the screw cannot be cooled evenly. It is something that can be done.

Since the branch connecting portion 4a of the branch joint is not threaded, it can be cooled quickly.

The branch joint consisting of the upper saddle member, the lower saddle member and the wedge member is preferably constructed of thermoplastic synthetic material, such as polyvinyl chloride, polyethylene or polybutene, which may be reinforced with glass fibres.

The insert may similarly be constructed from thermoplastic material, although other plastics or other materials may be used.

; if desired, inserter 12 to prevent leakage;
It is clear that the can be provided with sealing means.

The gist of the present invention and representative examples of embodiments are shown below.

)1. It consists of a first part with a branch connection opening, and a second part, both of said parts being partially cylindrical in shape to correspond to the shape of the tube, and having a tube on each side thereof. coupling means for coupling said parts when fitted over the top, - such that the wedge-shaped coupling means on one side engages a correspondingly shaped lip on the other part; a longitudinally-extending outer connecting edge on one section formed on the other side, and the connecting means on the other side having an outer connecting edge on each section; and a separate connecting member having two correspondingly shaped lips configured to engage.

2. The outer connecting edges of the connecting means on the other side are formed to be inclined at an angle to each other, and the lip of the connecting member is inclined correspondingly. Branch joints as described.

3. The first portion includes a pair of outer connecting edges, each extending parallel to the longitudinal axis of the branch.

Branch joint according to claim 11, characterized in that said edge forms part of said connecting means on each side.

4 The two connecting edges of the first part are formed in the same shape so that when one of the first and second parts is rotated through an angle of 180°, the first part is evenly attached to the second part. The branch joint according to item 39, characterized in that it is capable of being connected.

5. A flange is formed at one end of the longitudinal edge of each part, and in order to arrange the first part and the second part oppositely, the flange of each part is formed in the longitudinal direction of the other part. 11. The branch joint according to item 10, characterized in that the branch joint is configured to have a shape that engages with the other end of the directional end portion.

6. The branch joint according to item 11, wherein the circumferential range regulated by the longitudinal edge of the first portion is larger than 180°.

7. A laterally extending lip is formed on the connecting member.

The lip includes a first lip for holding the connecting member in place.
11. The branch joint according to item 10, wherein the branch joint is configured to elastically engage with a lip formed in a shape corresponding to one or both of the first part and the second part.

8. A branch pipe connection having an inner annular rim at the outer end is formed in the first part, and a branch joint is further inserted into the connection part having an outer annular rim at the inner end. an internally threaded tubular insert configured such that the annular rims are configured to engage each other to hold the insert in place; Branch joints as described in section.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the branch joint attached to the pipe, Figure 2 is a diagram showing the first and second parts of the branch joint when separated, and Figure 3 is the connecting member of the branch joint and A detailed sectional view of the second part taken along the line III--III in FIG. 1, and FIG. FIG. 1...Pipe, 2...Branch joint, 3...
... 1st part (upper saddle member), 4... 2nd part
part (lower saddle member), 4a...branch connection part,
5... Connecting edge portion, 6... Arcuate connecting edge portion, 7... Shelf-shaped portion, 8... Connecting member, 9.10. ...End of the first part, 11...
...Inwardly bent end edge of the connecting portion 4a, 12...
...Insert tool, 13...End part, 13a...
...Concave part on the end face. 14... Collision portion, 15... Concave portion of first portion, 16... Lip, 16a...
Closed surface, 18... Concave portion, 18a...
Shoulder, 19... upper groove-shaped part. 19a... Upper groove-shaped recessed part, 20...
Lower groove-shaped portion, 20a...Lower groove-shaped recessed portion.

Claims (1)

[Claims] 1 A first part 3 with a crosspiece connection opening and a second part 4
, both of said parts 3 and 4 are formed partially cylindrical so as to correspond to the shape of the tube 1, and on both sides of said parts 3 and 4, they fit over the tube 1. comprising connecting means for connecting said parts 3, 4 when brought together, the wedge-shaped connecting means on one side of said connecting means being connected to a longitudinally extending outer connecting edge 5 in the first part 3; and a lip 6 of the second portion 4 correspondingly shaped to engage said edge 5, and the connecting means on the other side of said connecting means is connected to each of said portions 3, 4. a separate coupling member having provided outer coupling edges 5, 7 and two channel-shaped portions 19, 20 correspondingly shaped to engage each of said coupling edges 5.7; A branch joint 2° for connecting a branch pipe of a pipe 1, characterized by comprising: