CN218032005U - Branching pipe - Google Patents

Abstract

The utility model discloses a branch pipe, which comprises a main pipe body, a branch pipe, a first branch pipe and a second branch pipe, wherein the branch pipe is connected with the main pipe body and is provided with a first branch joint and a second branch joint; the connection part of the first branch pipe and the first branch joint forms an inwards concave annular welding groove, welding positioning grooves are symmetrically formed in the inclined inner walls of the two sides of the annular welding groove and are used for helping a welder to observe whether the welding is in place or not, and the welding of the first branch pipe and the first branch joint is more convenient and accurate; be provided with the welding auxiliary ring that extends to return bend section department on the outer wall of second throat section, the welding auxiliary ring is close to one side of return bend section and sets up the welding auxiliary tank that reduces gradually from outside to inside, when welding, the meeting after the welding wire melts flows to the grafting department of second branch joint and second branch pipe under the guide in welding auxiliary tank, welds the back welding auxiliary tank and forms a whole with the welding department after accomplishing simultaneously, makes the welding seam more firm, and welding operation is also very convenient.

Description

Branching pipe

Technical Field

The utility model relates to a refrigeration plant accessory technical field, concretely relates to branching pipe.

Background

The branch pipe is a connecting pipe which is used for dividing one medium input into two or more medium outputs in the air-conditioning refrigeration pipeline. Used branch pipe way usually has two kinds among traditional refrigeration plant piping erection system, and the first kind is the pipe fitting of integral type, and this kind of pipe fitting not only the processing degree of difficulty is high and need pack the medium in the product before the processing, often takes lead or other toxic substance to give first place to, serious polluted environment. The second kind is by the branch manifold that a plurality of pipe fittings welded become, has many welds on the branch manifold of this kind of structure, and the workman relies on respective experience to weld basically when the welding, leads to appearing leaking easily, the wrong condition of welding, influences product quality. In addition, two branch joints of the shunt tube in the traditional shunt tube are separated, and the branch joints are easy to bend and deform after being impacted, so that the installation is influenced.

Disclosure of Invention

The utility model aims at solving the problem among the prior art, provide a branch pipe, make the welding between shunt tubes and first branch pipe, the second branch pipe more convenient and accurate through annular weld groove and welding auxiliary tank, the welding has the anchor block between first branch joint and the second branch joint simultaneously, increases the holistic firmness of shunt tubes.

In order to achieve the above purpose, the technical scheme of the utility model is that:

the utility model provides a branching pipe, is including being responsible for the body, with be responsible for the body and link to each other and have the shunt tubes that first branch connects and second branch connects, with first branch pipe of first branch articulate and with the second branch pipe of second branch articulate, all be provided with thickening location portion on the one end outer wall that shunt tubes were kept away from to first branch pipe and second branch pipe, first branch connects and includes first necking down section and first grafting section, the one end of first branch pipe is seted up and is matchd and the first positioning slot of pegging graft each other with first grafting section, the junction of first branch pipe and first branch joint forms the annular welding groove of indent.

Preferably, the inclined inner walls of the two sides of the annular welding groove are symmetrically provided with welding positioning grooves.

Preferably, the second branch joint includes second throat section and second grafting section, the second branch pipe includes bend section and straight tube section, the second positioning slot that matches and peg graft each other with second grafting section is seted up to the one end of bend section, be provided with the welding auxiliary ring that extends to bend section department on the outer wall of second throat section, the welding auxiliary groove that reduces gradually from outside to inside is seted up to one side that the welding auxiliary ring is close to bend section.

Preferably, a mounting opening is formed in the flow dividing pipe between the first branch joint and the second branch joint, a reinforcing block is welded between the first branch joint and the second branch joint, a flow dividing block extending into the mounting opening is arranged at one end of the reinforcing block, and the tip of the top of the flow dividing block faces the main pipe body.

Preferably, the inner wall of the shunt pipe on two sides of the shunt block is provided with installation guide blocks which are attached to the side wall of the shunt block.

Preferably, the side surface of the thickening positioning part is provided with an annular clamping groove.

Preferably, the main pipe body comprises a first pipe section, a second pipe section and a third pipe section which are connected in sequence, the inner diameters of the first pipe section, the second pipe section and the third pipe section are sequentially increased, and the first pipe section is connected with the shunt pipe.

Preferably, the main pipe body and the shunt pipe are integrally formed.

The beneficial effects of the utility model are that: the utility model discloses a branching pipe, which comprises a main pipe body, a branching pipe, a first branching pipe and a second branching pipe, wherein the branching pipe is connected with the main pipe body and is provided with a first branching joint and a second branching joint; the connection part of the first branch pipe and the first branch joint forms an inwards concave annular welding groove, welding positioning grooves are symmetrically formed in the inclined inner walls of the two sides of the annular welding groove and are used for helping a welder to observe whether the welding is in place or not, and the welding of the first branch pipe and the first branch joint is more convenient and accurate; be provided with the welding auxiliary ring that extends to return bend section department on the outer wall of second throat section, the welding auxiliary ring is close to one side of return bend section and sets up the welding auxiliary tank that outside-in reduces gradually, when welding, can flow to the grafting department of second branch joint and second branch pipe under the guide of welding auxiliary tank after the welding wire melts, and welding auxiliary tank forms a whole with the welding department after the welding is accomplished simultaneously, makes the welding seam more firm, and welding operation is also very convenient.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is an enlarged view of fig. 2 at B.

Detailed Description

In order that those skilled in the art will better understand the invention, the invention will now be described in further detail by way of example.

A branching pipe as shown in fig. 1 to 4 comprises a main pipe body 1, a branching pipe 2 connected to the main pipe body 1 and having a first branch connection 21 and a second branch connection 22, a first branching pipe 3 connected to the first branch connection 21, and a second branching pipe 31 connected to the second branch connection 22. The main pipe body 1 comprises a first pipe section 11, a second pipe section 12 and a third pipe section 13 which are connected in sequence, the inner diameters of the first pipe section 11, the second pipe section 12 and the third pipe section 13 are sequentially increased, and the first pipe section 11 is connected with the shunt pipe 2. The main pipe body 1 and the shunt pipe 2 can be integrally cast and formed, production steps are reduced, the main pipe body and the shunt pipe can be separately cast according to actual production planning, and the main pipe body and the shunt pipe are connected in a welding mode subsequently. The shunt tubes 2, the first shunt tubes 3 and the second shunt tubes 31 are separately cast, and are inserted and then fixed by welding during assembly. And thickened positioning parts 4 are arranged on the outer walls of the ends, far away from the shunt tubes 2, of the first branch tube 3 and the second branch tube 31. First branch pipe 3, second branch pipe 31 peg graft earlier with the refrigeration plant pipeline, then weld, and thickening location portion 4 plays the positioning action during grafting, can thicken the thickness of first branch pipe 3 and 31 tip of second branch pipe simultaneously, makes its non-deformable. Preferably, the side surface of the thickening positioning portion 4 is provided with an annular clamping groove 41, and when necessary, the annular clamping groove 41 can be matched with a fixing piece to fix the first branch pipe 3 and the second branch pipe 31, so that the branch pipes can be more firmly installed.

The first branch joint 21 comprises a first reducing section 23 and a first inserting section 24, a first positioning slot 5 which is matched with the first inserting section 24 and is inserted into each other is arranged at one end of the first branch pipe 3, and an inwards concave annular welding groove 6 is formed at the joint of the first branch pipe 3 and the first branch joint 21. The annular welding groove 6 is formed by combining the first branch pipes 3 on two sides and the inclined wall of the first branch joint 21, and welding positioning grooves 61 are symmetrically formed on the inclined inner walls on two sides of the annular welding groove 6. The annular welding groove 6 is located at the welding position of the first branch pipe 3 and the first branch joint 21, the welding positioning groove 61 is used for helping a welder to observe whether the welding is in place or not, and after a welding wire is melted, one circle of the welding wire can reach the welding positioning groove 61, so that the first branch pipe 3 and the first branch joint 21 can be welded more conveniently and accurately.

The second branch joint 22 comprises a second reducing section 32 and a second inserting section 33, the second branch pipe 31 comprises a bent pipe section 34 and a straight pipe section 35, and one end of the bent pipe section 34 is provided with a second positioning slot 51 which is matched with the second inserting section 33 and is inserted into the second inserting section. The outer wall of the second necking section 32 is provided with a welding auxiliary ring 36 extending to the bent pipe section 34, and one side of the welding auxiliary ring 36 close to the bent pipe section 34 is provided with a welding auxiliary groove 37 gradually reduced from outside to inside. The welding auxiliary ring 36 is located at the welding position of the second branch joint 22 and the second branch pipe 31, when welding is performed, the welding wire which is melted can flow to the insertion position of the second branch joint 22 and the second branch pipe 31 under the guidance of the welding auxiliary groove 37, and meanwhile, the welding auxiliary groove 37 and the welding position form a whole after welding is completed, so that the welding seam is firmer, and the welding operation is very convenient.

The shunt tube 2 between the first branch joint 21 and the second branch joint 22 is provided with a mounting opening 7, and the mounting opening 7 can be directly formed when the shunt tube 2 is cast. A reinforcing block 8 is welded between the first branch joint 21 and the second branch joint 22, one end of the reinforcing block 8 is provided with a flow dividing block 81 extending into the mounting opening 7, and the top tip of the flow dividing block 81 faces the main pipe body 1. Reinforcing block 8 and reposition of redundant personnel piece 81 block up installing port 7, and reinforcing block 8 has connected first branch joint 21 and second branch joint 22 simultaneously, makes shunt tubes 2 overall structure more stable and firm, non-deformable. Set up on the 2 inner walls of shunt tubes of reposition of redundant personnel piece 81 both sides and all be provided with the installation guide block 82 with the laminating of shunt bricks piece 81 lateral wall. The installation guide block 82 be close to the side of reposition of redundant personnel piece 81 and the laminating of reposition of redundant personnel piece 81 lateral wall, make installation guide block 82 can obtain quick, accurate installation, and reposition of redundant personnel piece 81 can be shunted the medium that flows over in the main pipe body 1 simultaneously, and it is more smooth and easy to make the interior medium flow of shunt tubes 2.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (8)

1. A manifold, comprising: including being responsible for the body (1), shunt tubes (2) that link to each other and have first branch joint (21) and second branch joint (22) with being responsible for the body (1), first branch pipe (3) of being connected with first branch joint (21) and second branch pipe (31) of being connected with second branch joint (22), all be provided with thickening location portion (4) on the one end outer wall of shunt tubes (2) is kept away from with second branch pipe (31) first branch pipe (3), first branch joint (21) include first throat section (23) and first grafting section (24), first location slot (5) that just pegs graft each other with first grafting section (24) assorted are seted up to the one end of first branch pipe (3), first branch pipe (3) and the junction of first branch joint (21) form annular welding groove (6) of indent.

2. The manifold of claim 1, wherein: and welding positioning grooves (61) are symmetrically formed in the inclined inner walls of the two sides of the annular welding groove (6).

3. The manifold of claim 1, wherein: second branch joint (22) include second necking down section (32) and second grafting section (33), second branch pipe (31) are including bend section (34) and straight tube section (35), second positioning slot (51) with second grafting section (33) assorted and pegging graft each other are seted up to the one end of bend section (34), be provided with welding auxiliary ring (36) that extend to bend section (34) department on the outer wall of second necking down section (32), welding auxiliary ring (36) are close to one side of bend section (34) and are seted up welding auxiliary groove (37) that outside-in reduces gradually.

4. The manifold of claim 1, wherein: the split-flow pipe joint is characterized in that a mounting opening (7) is formed in the split-flow pipe (2) between the first branch joint (21) and the second branch joint (22), a reinforcing block (8) is welded between the first branch joint (21) and the second branch joint (22), a split-flow block (81) extending into the mounting opening (7) is arranged at one end of the reinforcing block (8), and the top tip of the split-flow block (81) faces the main pipe body (1).

5. The manifold of claim 4, wherein: the installation guide blocks (82) which are attached to the side walls of the shunting blocks (81) are arranged on the inner walls of the shunting pipes (2) on the two sides of the shunting blocks (81).

6. The manifold of claim 1, wherein: an annular clamping groove (41) is formed in the side face of the thickening positioning portion (4).

7. The manifold of claim 1, wherein: the main pipe body (1) comprises a first pipe section (11), a second pipe section (12) and a third pipe section (13) which are sequentially connected, the inner diameters of the first pipe section (11), the second pipe section (12) and the third pipe section (13) are sequentially increased, and the first pipe section (11) is connected with the shunt pipe (2).

8. The manifold of claim 1, wherein: the main pipe body (1) and the shunt pipe (2) are integrally formed.

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