Metal pipeline connecting piece with locking ring

Abstract

The utility model discloses a metal pipeline connecting piece with a locking ring. The metal pipeline connecting piece comprises the elastic locking ring, a fixing base, an adjusting bolt assembly, an adjusting bolt, a locking nut and a metal pipeline. The elastic locking ring is of an open type annular structure and wraps the butt joint ends of the two metal pipelines, fixing seats are integrally formed at the two ends of an opening of the elastic locking ring, and the adjusting bolt assembly comprises adjusting bolts transversely penetrating through the fixing seats and locking nuts fixed to the outer walls of the fixing seats. When the locking nut is screwed tightly, an opening of the elastic locking ring is forced to be closed and generate radial shrinkage to press the outer wall of a pipeline, anti-skid insections are arranged on the inner wall of the elastic locking ring and are of protrusion structures distributed at equal intervals, the outer side of the elastic locking ring is sleeved with a rigid reinforcing ring, and the rigid reinforcing ring is connected with the elastic locking ring in a sleeved mode. According to the utility model, the connection firmness between the two metal pipelines can be greatly improved, and the phenomena of looseness and instability are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of metal pipeline, particularly the technical field of metal pipeline connecting piece with locking ring. BACKGROUND

[0002] Metal pipe is an important component in the connecting pipeline of modern industrial equipment, and the production process and use technology are very mature at present.

[0003] In the prior art, when connecting two or more metal pipes, most of them are connected by welding at both ends of the metal pipe, but the process is complex, the technical requirements for the operator are high, and the operation is not convenient.

[0004] To solve the problems in the above-mentioned technology, for example, application No. CN202323362227.4 discloses a pipeline connecting piece, comprising two connecting assemblies and a bendable connecting pipe; the connecting assembly comprises a sleeve and a locking piece, the two ends of the sleeve in the axial direction are respectively provided with a matching part matched with the rigid metal pipe and a positioning part for clamping and positioning the rigid metal pipe, the inside of the sleeve at the matching part is provided with a cavity for the rigid metal pipe to pass through and match, the sleeve at the positioning part is provided with a plurality of deformable clamping pieces, the clamping space is formed between the plurality of clamping pieces, the locking piece is sleeved outside the sleeve and is in threaded cooperation with the plurality of clamping pieces, the plurality of clamping pieces are deformed during the threaded cooperation of the locking piece and the plurality of clamping pieces, and the size of the clamping space changes with the deformation of the plurality of clamping pieces.

[0005] For example, application No. CN202323289039.3 discloses a self-locking metal connecting piece, comprising: a first pipeline and a second pipeline, a rotating sleeve is rotatably installed on the surface of the first pipeline close to the second pipeline, and an internal thread mounting sleeve is fixedly connected to the side of the rotating sleeve close to the second pipeline, an external thread sleeve is fixedly sleeved on the surface of the second pipeline close to the first pipeline, and the surface of the external thread sleeve is internally threaded with the internal thread mounting sleeve, through the setting of the rotating sleeve, the internal thread mounting sleeve and the external thread sleeve, the threaded installation between the internal thread mounting sleeve at one end of the first pipeline and the external thread sleeve at one end of the second pipeline can reduce the problem that the connecting piece between the two pipelines is assembled by a large number of bolts, the installation speed is slow, and the installation efficiency is low.

[0006] However, the above-mentioned structure has the following defects:

[0007] Although the connection of the two pipelines is realized by threaded installation, the threaded installation is prone to problems of unstable installation and instability, thereby affecting the processing quality. SUMMARY

[0008] The utility model discloses a metal pipeline connecting piece with locking ring, which can greatly improve the connection firmness between two metal pipelines and avoid loosening and instability.

[0009] To realize the above-mentioned purpose, the utility model provides a metal pipeline connecting piece with locking ring, which comprises an elastic locking ring, a fixing seat, an adjusting bolt assembly, an adjusting bolt, a locking nut and a metal pipeline.

[0010] Preferably, the inner wall of the elastic locking ring is provided with anti-skid tooth patterns, which are convex structures distributed at equal intervals.

[0011] Preferably, a rigid reinforcing ring is sleeved on the outer side of the elastic locking ring, and the adjusting bolt penetrates the open ends of the elastic locking ring and the rigid reinforcing ring.

[0012] Preferably, the inner wall of the elastic locking ring is provided with spiral grooves, and the outer wall of the metal pipeline is provided with guide protrusions matched with the spiral grooves.

[0013] Preferably, the side wall of one of the fixing seats is provided with at least two insertion slots, and the side wall of the other fixing seat is provided with at least two insertion columns corresponding to the insertion slots.

[0014] Preferably, the side wall of the locking nut is provided with a quick-release handle.

[0015] Preferably, the outer wall of the butt joint end of the metal pipeline is provided with an outer conical surface, and the inner wall of the elastic locking ring is provided with an inner conical surface matched with the outer conical surface.

[0016] The utility model has the advantages of:

[0017] The utility model discloses a metal pipeline connecting piece with elastic locking ring, which can improve the connection firmness between two metal pipelines, and the elastic locking ring is used to cover the interface area of the two metal pipelines, and then the adjusting bolt is rotated to make the adjusting bolt penetrate through the two fixing bases and be screwed with the locking nut, the quick release handle on the locking nut is rotated to drive the locking nut to rotate and be screwed gradually, the two ends of the elastic locking ring are moved close to each other through the threaded transmission, the elastic locking ring is forced to contract radially, the inner wall anti-skid tooth pattern is used to press the outer wall of the metal pipeline, and the inserting column on the side wall of the fixing base is inserted into the corresponding inserting slot, so that the fixing effect is further improved, the elastic locking ring is contracted and the adjusting bolt assembly is pressed, the anti-vibration and anti-loosening capability is improved, the elastic deformation is used to hold tightly, the thread turning or welding on the surface of the pipeline is avoided, the locking or loosening can be completed by rotating the locking nut, and special tools are not needed, and the problem of unstable and insecure thread installation is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the front view of the metal pipeline connecting piece with elastic locking ring of the utility model;

[0019] Figure 2 is the elastic locking ring schematic view of the metal pipeline connecting piece with elastic locking ring of the utility model;

[0020] Figure 3 is the adjusting bolt assembly schematic view of the metal pipeline connecting piece with elastic locking ring of the utility model;

[0021] Figure 4 is the elastic locking ring sectional view of the metal pipeline connecting piece with elastic locking ring of the utility model;

[0022] Figure 5 is the installation schematic view of the metal pipeline connecting piece with elastic locking ring of the utility model;

[0023] In the drawing: 1-elastic locking ring, 101-fixing base, 1011-inserting slot, 1012-inserting column, 102-anti-skid tooth pattern, 103-spiral groove, 104-inner taper surface, 2-adjusting bolt assembly, 201-adjusting bolt, 202-locking nut, 2022-quick release handle, 3-metal pipeline, 301-guiding protrusion, 302-outer taper surface, 4-rigid reinforcing ring. DETAILED DESCRIPTION

[0024] Reference Figures 1 to 5The utility model discloses a metal pipeline connecting piece with locking ring, including elastic locking ring 1, fixed seat 101, adjusting bolt assembly 2, adjusting bolt 201, locking nut 202 and metal pipeline 3, elastic locking ring 1 is open ring structure, and the butt joint end outside of two metal pipelines 3 is covered, and the fixed seat 101 is integrally formed to the both ends of the opening of elastic locking ring 1, and adjusting bolt assembly 2 includes the adjusting bolt 201 of traversing the fixed seat 101, and locking nut 202 is fixed to the outer wall of fixed seat 101, when locking nut 202 is screwed, force elastic locking ring 1 opening to close and produce radial contraction, and the outer wall of pipe is pressed tightly.

[0025] Refer to Figure 2 The inner wall of elastic locking ring 1 is equipped with anti-skid tooth pattern 102, and the anti-skid tooth pattern 102 is the convex structure of equal interval distribution, and the anti-skid tooth pattern 102 can be embedded into the small deformation of the surface of metal pipeline 3 by being arranged, to form local sealing barrier.

[0026] Refer to Figure 2 The outer side of elastic locking ring 1 is equipped with rigid reinforcing ring 4, and adjusting bolt 201 simultaneously penetrates the opening end of elastic locking ring 1 and rigid reinforcing ring 4, and the overall tensile property of elastic locking ring 1 is greatly increased by arranging rigid reinforcing ring 4, to prolong the service life of elastic locking ring 1.

[0027] Refer to Figure 2 The inner wall of elastic locking ring 1 is equipped with spiral groove 103, and the outer wall of metal pipeline 3 is equipped with guide protrusion 301 matched with spiral groove 103, and when rotating elastic locking ring 1, axial compression force is generated by spiral motion, to further improve the anti-loosening effect.

[0028] Refer to Figure 2 The sidewall of one of fixed seat 101 is equipped with at least two insertion slots 1011, and the sidewall of another fixed seat 101 is equipped with at least two insertion columns 1012 corresponding to insertion slots 1011, the insertion column 1012 is embedded into the insertion slot 1011, to further improve the locking effect and increase the locking force of elastic locking ring 1 on metal pipeline 3.

[0029] Refer to Figure 3 The sidewall of locking nut 202 is equipped with quick-release handle 2022, and locking or loosening can be completed by only rotating locking nut 202, without special tools, and the operation is simple and portable.

[0030] Refer to Figure 4 The outer wall of butt joint end of metal pipeline 3 is equipped with outer taper surface 302, and the inner wall of elastic locking ring 1 is equipped with inner taper surface 104 matched with outer taper surface 302, and when elastic locking ring 1 slides along the pipeline axial direction, radial compression force is generated by taper surface cooperation.

[0031] The utility model discloses a working process:

[0032] The utility model discloses a locking ring metal pipeline connecting piece in working process, when using, the elastic locking ring 1 opening props open, and the two metal pipelines 3 of the butt joint end outside are covered, make the elastic locking ring 1 cover interface area, subsequently rotate adjusting bolt 201, make adjusting bolt 201 pass through two fixed seat 101, and screw on locking nut 202, through the quick release handle 2022 on rotating locking nut 202, and then drive locking nut 202 to rotate and gradually tighten, make the elastic locking ring 1 opening both ends close to each other through screw transmission, force elastic locking ring 1 to occur radial elastic contraction, and inner wall antiskid tooth pattern 102 compresses tightly metal pipeline 3 outer wall, and the plug -in post 1012 of fixed seat 101 side wall embeds in the corresponding slot 1011, to further play the effect of fixed, through the elastic locking ring 1 own contraction force and adjusting bolt assembly 2 compression force, improve the anti-vibration and release ability, realize the hug through elastic deformation, avoid the turning thread or welding on the pipeline surface, only need to rotate locking nut 202 to complete locking or loosening, need not special tool, when needing to disassemble, reverse rotation locking nut 202, rotate out adjusting bolt 201, and the elastic locking ring 1 opening expands, and the elastic recovery is to initial state, and the elastic locking ring 1 is taken down from the metal pipeline 3 as a whole, to complete disassembly, and installation disassembly is convenient, and simple operation.

[0033] The above examples are illustrative of the present utility model and are not limiting of the present utility model. Any simple transformation of the present utility model falls within the scope of protection of the present utility model.

Claims

1. A metal pipe coupling with a locking ring, characterized by: The utility model relates to a metal pipeline locking device, including elastic locking ring (1), fixed seat (101), adjusting bolt assembly (2), adjusting bolt (201), locking nut (202) and metal pipeline (3), elastic locking ring (1) is open ring structure, and is covered to the butt joint end outside of two metal pipelines (3), and the fixed seat (101) is integrally formed in the open both ends of elastic locking ring (1), adjusting bolt assembly (2) includes the adjusting bolt (201) of traversing fixed seat (101), and locking nut (202) is fixed to the outer wall of fixed seat (101), when locking nut (202) is screwed, forces elastic locking ring (1) open to close and generates radial contraction, and the outer wall of pipeline is pressed tightly.

2. The band-hoop metal pipe coupling according to claim 1, wherein: The inner wall of the elastic locking ring (1) is provided with anti-skid tooth pattern (102), and the anti-skid tooth pattern (102) is a convex structure distributed at equal intervals.

3. The band-hoop metal pipe coupling of claim 1, wherein: The outer side of the elastic locking ring (1) is provided with a rigid reinforcing ring (4), and the adjusting bolt (201) penetrates the open ends of the elastic locking ring (1) and the rigid reinforcing ring (4) at the same time.

4. The band-hoop metal pipe coupling of claim 1, wherein: The inner wall of the elastic locking ring (1) is provided with a spiral groove (103), and the outer wall of the metal pipeline (3) is provided with a guide protrusion (301) matched with the spiral groove (103), and when the elastic locking ring (1) is rotated, axial compression force is generated through spiral motion.

5. The band-hoop metal pipe coupling of claim 1, wherein: The side wall of one of the fixed seats (101) is provided with at least two insertion slots (1011), and the side wall of the other fixed seat (101) is provided with at least two insertion columns (1012) corresponding to the insertion slots (1011).

6. The band-hoop metal pipe coupling of claim 1, wherein: The side wall of the locking nut (202) is provided with a quick release handle (2022).

7. The band-hoop metal pipe coupling of claim 1, wherein: The outer wall of the butt joint end of the metal pipeline (3) is provided with an outer taper surface (302), and the inner wall of the elastic locking ring (1) is provided with an inner taper surface (104) matched with the outer taper surface (302); when the elastic locking ring (1) slides along the pipeline in the axial direction, radial compression force is generated through taper surface matching.

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