Three-way pipe with limiting function

Abstract

The three-way pipe with the limiting function comprises a main pipe and a branch pipe which are of an integrated structure, the main pipe is vertically connected to the middle of the branch pipe, limiting blocks are symmetrically arranged on the left side and the right side of the middle of the branch pipe, a round hole is vertically formed in the middle of the lower end of the branch pipe, and the limiting blocks are symmetrically arranged on the left side and the right side of the middle of the branch pipe. A rivet-shaped boss is arranged at the round hole in a penetrating mode, and the lower end of the boss is connected with a locking nut in a threaded mode, wherein the locking nut abuts against the outer wall of the branch pipe. The utility model has the advantages that the locking nut is screwed off, the damaged boss is poured out from the opening at the upper end of the main pipe and replaced by a new boss, and then the locking nut is screwed.

Description

Technical Field

[0001] The utility model relates to the technical field of three-way pipes, in particular to a three-way pipe with a limiting function. Background Art

[0002] The three-way pipe joint is a common pipe connection element in liquid pipelines. The liquid rushes from the main pipe to the middle of the branch pipe, and then flows out from the middle of the branch pipe to both sides. The existing patent number is CN201420027211.X, and the patent name is a patent for a three-way pipe fitting, which includes a three-way pipe fitting body, the three-way pipe fitting body includes a straight-through and a side-through, the straight-through and the side-through are perpendicular to each other and fixedly connected, the side-through is a water inlet relative to the other end connected to the straight-through, and the two ends of the straight-through are water outlets. The inner wall of the other side of the straight-through relative to the side-through is provided with a buffer protrusion. The liquid rushing down from the straight-through first contacts the buffer protrusion, and then flows out from the buffer protrusion to the branch pipes on both sides, which can play a role in buffering and drainage. Under long-term impact, the buffer protrusion will be deformed and damaged, but the buffer protrusion is integrated with the three-way pipe fitting body, and the buffer protrusion cannot be replaced. Summary of the invention

[0003] In view of this, the purpose of the utility model is to overcome the deficiencies in the prior art and provide a three-way pipe with a limiting function.

[0004] The utility model provides a three-way pipe with a limiting function, comprising a main pipe 1 and a branch pipe 2 of an integrated structure, the main pipe 1 is vertically connected to the middle of the branch pipe 2, limiting blocks 3 are symmetrically arranged on the left and right sides of the middle of the branch pipe 2, a circular hole is vertically opened in the middle of the lower end of the branch pipe 2, a rivet-shaped boss 4 is penetrated at the circular hole, and a locking nut 5 against the outer wall of the branch pipe 2 is screwed at the lower end of the boss 4.

[0005] Furthermore, the boss 4 is composed of a buffer convex portion on the upper side connected to a screw in the middle of the lower side, and an annular groove coaxially arranged with the screw is provided at the bottom of the buffer convex portion, and a sealing ring is provided in the annular groove.

[0006] Furthermore, an upper platform 2.1 that fits with the buffer convex portion is provided at the bottom of the middle inner wall of the branch pipe 2, and a lower flat groove 2.2 that fits with the locking nut 5 is opened at the bottom of the middle outer wall of the branch pipe 2.

[0007] Furthermore, the cross section of the limit block 3 is a right-angled trapezoid, and a surface of the limit block 3 away from the main pipe 1 is a vertical surface.

[0008] Furthermore, the left and right ports of the branch pipe 2 and the upper port of the main pipe 1 are all provided with a first clamping ring 6 , a convex ring 7 , and a second clamping ring 8 .

[0009] Furthermore, the first clamping ring 6 , the convex ring 7 , and the second clamping ring 8 are equidistantly distributed from the outside to the inside.

[0010] Furthermore, a reinforcing rib 9 is provided at the connection between the main pipe 1 and the branch pipe 2 .

[0011] The utility model has the advantages that: the locking nut is screwed down, the damaged boss is poured out from the upper end opening of the main pipe and replaced with a new boss, and then the locking nut is tightened; the cross section of the limit block is a right-angled trapezoid, and the side of the limit block away from the main pipe is a vertical surface, and the stainless steel sleeve is limited by the vertical surface; the bottom of the buffer convex part is provided with an annular groove arranged coaxially with the screw, and a sealing ring is arranged in the annular groove, and the liquid rushing down from the main pipe first contacts the buffer convex part, which can play a role of buffering and drainage, and the sealing ring can prevent the liquid from flowing out from the middle circular hole, thereby improving the sealing performance; the upper platform can make the buffer convex part fit horizontally, thereby improving the sealing performance, and the lower flat groove can make the locking nut fit horizontally, so as to prevent the locking nut from damaging the outer wall of the branch pipe; the first clamping ring, the convex ring and the second clamping ring are clamped with the pipeline by the concave stainless steel clamping sleeve, and the pipeline connection is convenient, fast and reliable; the connection strength of the main pipe and the branch pipe is strengthened by the reinforcing ribs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 It is the front view of the utility model;

[0014] Figure 3 It is a top view of the utility model;

[0015] Figure 4 for Figure 3 AA section view. DETAILED DESCRIPTION

[0016] The following is a detailed description of the embodiments of the present utility model in conjunction with the accompanying drawings.

[0017] See also Figures 1 to 4The utility model provides a three-way pipe with a limiting function, which includes a main pipe 1 and a branch pipe 2 of an integrated structure. The main pipe 1 is vertically connected to the middle of the branch pipe 2. The limiting blocks 3 are symmetrically arranged on the left and right sides of the middle of the branch pipe 2. The cross section of the limiting block 3 is a right-angled trapezoid. The side of the limiting block 3 away from the main pipe 1 is a vertical surface, and the stainless steel ferrule is limited by the vertical surface. A circular hole is vertically opened in the middle of the lower end of the branch pipe 2, and a rivet-shaped boss 4 is penetrated in the circular hole. The lower end of the boss 4 is screwed with a locking nut 5 against the outer wall of the branch pipe 2. The liquid rushing down from the main pipe first contacts the boss, and then flows out from the boss to the branch pipes on both sides, which can play a role in buffering and drainage. Under long-term impact, the boss will be deformed and damaged. It only needs to unscrew the locking nut to pour it out from the upper end opening of the main pipe, replace the new boss, and then tighten the locking nut.

[0018] The boss 4 is composed of a buffer convex part on the upper side connected to a screw in the middle of the lower side. The bottom of the buffer convex part is provided with an annular groove coaxially arranged with the screw, and a sealing ring is arranged in the annular groove. The top of the buffer convex part is in an arc shape, and the liquid rushing down from the main pipe first contacts the buffer convex part, which can play a role in buffering and drainage, and the sealing ring can prevent the liquid from flowing out of the circular hole in the middle, thereby improving the sealing performance.

[0019] The upper platform can make the buffer convex part fit horizontally to improve the sealing performance, and the lower flat groove can make the locking nut fit horizontally to prevent the locking nut from damaging the outer wall of the branch pipe. The bottom of the middle inner wall of the branch pipe 2 is provided with an upper platform 2.1 that fits with the buffer convex part, and chamfers are symmetrically provided on the left and right sides of the upper platform. The bottom of the middle outer wall of the branch pipe 2 is provided with a lower flat groove 2.2 that fits with the locking nut 5.

[0020] See also Figure 1 , Figure 2 The left and right ports of the branch pipe 2 and the upper port of the main pipe 1 are all provided with a first clamp ring 6, a convex ring 7, and a second clamp ring 8. The first clamp ring and the second clamp ring have the same structure and are both in a right-angle trapezoidal shape. The first clamp ring, the convex ring, and the second clamp ring are connected to the pipeline through a concave stainless steel ferrule, and the pipeline connection is convenient, fast and reliable.

[0021] The first clamping ring 6, the convex ring 7 and the second clamping ring 8 are evenly distributed from the outside to the inside.

[0022] A reinforcing rib 9 is provided at the connection between the main pipe 1 and the branch pipe 2. The reinforcing rib is used to strengthen the connection strength between the main pipe and the branch pipe.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A three-way pipe with a limiting function, characterized in that: It comprises a main pipe and a branch pipe of an integrated structure, wherein the main pipe is vertically connected to the middle of the branch pipe, and limit blocks are symmetrically arranged on the left and right sides of the middle of the branch pipe. A circular hole is vertically opened in the middle of the lower end of the branch pipe, and a rivet-shaped boss is penetrated at the circular hole. The lower end of the boss is screwed with a locking nut that abuts against the outer wall of the branch pipe.

2. A three-way pipe with a limiting function as claimed in claim 1, characterized in that: The boss is composed of a buffer convex portion on the upper side connected to a screw in the middle of the lower side. The bottom of the buffer convex portion is provided with an annular groove coaxially arranged with the screw, and a sealing ring is arranged in the annular groove.

3. A three-way pipe with a limiting function as claimed in claim 2, characterized in that: An upper platform that fits with the buffer convex portion is arranged at the bottom of the middle inner wall of the branch pipe, and a lower flat groove that fits with the locking nut is opened at the bottom of the middle outer wall of the branch pipe.

4. The three-way pipe with a limiting function according to claim 1, characterized in that: The cross section of the limit block is a right-angle trapezoid, and a surface of the limit block away from the main pipe is a vertical surface.

5. The three-way pipe with a limiting function according to claim 1, characterized in that: The left and right ports of the branch pipe and the upper port of the main pipe are all provided with a first clamping ring, a convex ring and a second clamping ring.

6. A three-way pipe with a limiting function as claimed in claim 5, characterized in that: The first clamping ring, the convex ring and the second clamping ring are equidistantly distributed from outside to inside.

7. The three-way pipe with a limiting function according to claim 1, characterized in that: A reinforcing rib is provided at the connection between the main pipe and the branch pipe.

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