CN213177043U

CN213177043U - Pipeline connecting device for laying natural gas pipeline

Info

Publication number: CN213177043U
Application number: CN202022104487.1U
Authority: CN
Inventors: 黄保亮; 周鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-05-11
Anticipated expiration: 2030-09-23

Abstract

The utility model relates to the technical field of natural gas pipeline laying connection, in particular to a pipeline connecting device for natural gas pipeline laying, which comprises a connecting device, the left and right ends of the connecting device are fixedly connected with the inner side of a fixed plate, the outer side of the fixed plate is fixedly connected with the inner side of a connecting block, the middle part of the connecting block is sleeved outside an inner pipe, the connecting block is connected with the inner pipe in a sliding way, the outer side of the connecting block is fixedly connected with the inner side of a spring, the outer side of the spring is fixedly connected with the inner side of an outer pipe, the outer side of the spring is sleeved outside the outer wall of the inner pipe, the outer side of the inner pipe is arranged inside the outer pipe, at present, most pipeline connecting devices for natural gas pipeline laying are completed by common welding, and can crack when being exposed to long-, corrosion and the like, which causes the leakage of natural gas.

Description

Pipeline connecting device for laying natural gas pipeline

Technical Field

The utility model relates to a natural gas line lays and connects technical field, specifically is a pipeline connecting device that natural gas line laid usefulness.

Background

The pipeline connection means that the prefabricated pipe sections are connected into a complete system according to the requirements of design drawings. In construction, different connection methods should be selected according to the material of the used pipe. The common steel pipes are connected by screw thread, flange, welding, socket joint, pipe bonding, etc.

At present, most of pipeline connecting devices for laying natural gas pipelines are completed by adopting common welding, and when the pipeline connecting devices are exposed to wind and sunlight for a long time, the welding parts of the natural gas pipelines can crack, rust and the like, so that natural gas leakage is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pipeline connecting device of natural gas line laying usefulness to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pipeline connecting device for laying a natural gas pipeline comprises a connecting device, the left end and the right end of the connecting device are fixedly connected with the inner side of a fixed plate, the outer side of the fixed plate is fixedly connected with the inner side of a connecting block, the middle part of the connecting block is sleeved outside an inner pipe, the connecting block is connected with the inner pipe in a sliding manner, the outer side of the connecting block is fixedly connected with the inner side of a spring, the outer side of the spring is fixedly connected with the inner side of an outer pipe, the outer side of the inner pipe is arranged inside the outer pipe, the outer side of the outer pipe is fixedly connected with the inner wall of the outer pipe, the inner side of the inner pipe penetrates through the fixed plate and enters the connecting device, a fixing ring is arranged on the outer side inside of the connecting device, a butterfly buckle is arranged on the inner side of the connecting device, the outer side of the butterfly buckle is fixedly connected with the, the other end of the small spring is fixedly connected with the inner wall of the connecting device.

Preferably, the inner side of the connecting block is provided with a sealing sleeve, the thickness of the sealing sleeve is larger than the thickness of the fixing plate, and the cross sectional area of the sealing sleeve is the same as the inner cross sectional area of the connecting device.

Preferably, the inner cross-sectional area of the fixing ring is larger than the cross-sectional area of the inner pipe, an opening is formed in one end of the fixing ring, a fixing screw is arranged above the opening, a fixing nut is arranged below the opening, and the fixing screw is in threaded connection with the fixing nut.

Preferably, the number of the butterfly buckles is four, and the distance between the upper butterfly buckle and the lower butterfly buckle is equal to the diameter of the inner pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model provides a novel natural gas line connecting device, has avoided the produced unstable problem of natural gas line welded connection, has prevented that natural gas line from making its junction produce damaged, cracked condition appear because of the influence of rainwater weather, strong wind weather and high temperature weather, causes revealing of natural gas.

2. The setting of connecting device can effectively ensure that natural gas line does not receive external weather's erosion, injury to effect through solid fixed ring and butterfly buckle makes the inner tube butt joint fixed, and the sealed cover at connecting device both ends is in multiple fixed structure design, and the effectual natural gas that prevents is revealed.

Drawings

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

fig. 2 is a schematic view of the fixing ring structure of the present invention.

In the figure: 1. connecting device, 2, inner tube, 3, outer tube, 4, spring, 5, connecting block, 51, seal cover, 6, fixed ring, 61, set screw, 62, fixation nut, 7, butterfly buckle, 71, rotating shaft, 8, fixing seat, 9, small spring, 10 and fixing plate

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a technical solution: a pipeline connecting device for laying a natural gas pipeline comprises a connecting device 1, the left end and the right end of the connecting device 1 are fixedly connected with the inner side of a fixing plate 10, the outer side of the fixing plate 10 is fixedly connected with the inner side of a connecting block 5, the middle part of the connecting block 5 is sleeved on an inner pipe 2, the connecting block 5 is in sliding connection with the inner pipe 2, the outer side of the connecting block 5 is fixedly connected with the inner side of a spring 4, the outer side of the spring 4 is fixedly connected with the inner side of an outer pipe 3, the spring 4 is sleeved on the outer wall of the inner pipe 2, the outer side of the inner pipe 2 is arranged inside the outer pipe 3, the outer wall of the outer side of the inner pipe 2 is fixedly connected with the inner wall of the outer pipe 3, the inner side of the inner pipe 2 penetrates through the fixing plate 10 to enter the connecting device 1, a fixing ring 6 is arranged on the outer, the outer side of the fixing frame 8 is fixed on the inner wall of the connecting device 1, one end of a small spring 9 is fixedly connected above the lock catch on the inner side of the butterfly buckle 7, and the other end of the small spring 9 is fixedly connected with the inner wall of the connecting device 1.

The inner side of the connecting block 5 is provided with a sealing sleeve 51, the thickness of the sealing sleeve 51 is larger than that of the fixing plate 10, and the cross-sectional area of the sealing sleeve 51 is the same as the inner cross-sectional area of the connecting device 1.

The internal cross-sectional area of the fixing ring 6 is larger than the cross-sectional area of the inner tube 2, an opening is formed in one end of the fixing ring 6, a fixing screw 61 is arranged above the opening, a fixing nut 62 is arranged below the opening, and the fixing screw 61 is in threaded connection with the fixing nut 62.

The number of the butterfly buckles 7 is four, and the distance between the upper butterfly buckle 7 and the lower butterfly buckle 7 is equal to the diameter of the inner pipe 2.

The working principle is as follows: pulling the connecting block 5 towards the outer pipe 3 to enable the connecting block 5 to extrude the spring 4 outwards and expose the inner side of the inner pipe 2, inserting the inner side of the inner pipe 2 into the connecting device 1, firstly passing through the inner through hole of the fixing ring 6 to enable the inner pipe 2 to be kept horizontal after entering the connecting device 1, facilitating the fixation of the butterfly buckle 7 and the butt joint with the inner pipe 2 at the other side, when the inner pipe 2 is not inserted into the butterfly buckle 7, keeping the state of low inside and high outside due to the extrusion action of the small spring 9 at the inner side, facilitating the clamping connection with the inner pipe 2, when the inner pipe 2 passes through the outer side of the butterfly buckle 7, keeping the butterfly buckle 7 at the outer side at a high position to be unable to contact, after entering the inner side of the butterfly buckle 7, slowly extruding the inner side of the butterfly buckle 7 to enable the small spring 9 to be extruded upwards until the inner side and the outer side of the butterfly buckle 7 are horizontal, at this time, the butterfly buckle 7 positioned at the upper beam and the, the inner tube 2 is inserted from the other side of the connecting device 1 in the same way, the end parts of the inner tubes 2 at the left and right sides are butted, the fixing screws 61 at the two sides are adjusted, the fixing screws 61 and the fixing nuts 62 are clamped inwards, the openings of the fixing rings 6 are reduced, the left and right positions of the inner tubes 2 are fixed, the inner tubes 2 are completely fixed in the connecting device 1, the connecting block 5 is loosened, the sealing sleeves 51 at the inner side of the connecting block 5 enter the openings at the end parts of the connecting device 1, the left and right sides 1 of the connecting device 1 are sealed, the fixing plates 10 at the inner side of the connecting block 5 are butted with the fixing plates 10 at the outer side of the connecting device 1, and the two fixing plates 10 are fixedly connected through physical means, so that the connecting device 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pipe connection device for natural gas pipe laying, comprising a connection device (1), characterized in that: the left end and the right end of the connecting device (1) are fixedly connected with the inner side of the fixing plate (10), the outer side of the fixing plate (10) is fixedly connected with the inner side of the connecting block (5), the middle part of the connecting block (5) is sleeved on the inner tube (2), the connecting block (5) is in sliding connection with the inner tube (2), the outer side of the connecting block (5) is fixedly connected with the inner side of the spring (4), the outer side of the spring (4) is fixedly connected with the inner side of the outer tube (3), the spring (4) is sleeved on the outer wall of the inner tube (2), the outer side of the inner tube (2) is arranged inside the outer tube (3), the outer wall of the outer side of the inner tube (2) is fixedly connected with the inner wall of the outer tube (3), the inner side of the inner tube (2) penetrates through the fixing plate (10) to enter the connecting device (1), a fixing ring (6) is arranged on, the outer side of the butterfly buckle (7) is fixedly connected with the inner side of the fixing frame (8) through the rotating shaft (71), the outer side of the fixing frame (8) is fixed on the inner wall of the connecting device (1), one end of a small spring (9) is fixedly connected above the lock catch on the inner side of the butterfly buckle (7), and the other end of the small spring (9) is fixedly connected with the inner wall of the connecting device (1).

2. The pipe connecting device for natural gas pipeline laying according to claim 1, wherein: the inner side of the connecting block (5) is provided with a sealing sleeve (51), the thickness of the sealing sleeve (51) is larger than that of the fixing plate (10), and the cross sectional area of the sealing sleeve (51) is the same as the inner cross sectional area of the connecting device (1).

3. The pipe connecting device for natural gas pipeline laying according to claim 1, wherein: the inner cross-sectional area of the fixing ring (6) is larger than the cross-sectional area of the inner tube (2), an opening is formed in one end of the fixing ring (6), a fixing screw (61) is arranged above the opening, a fixing nut (62) is arranged below the opening, and the fixing screw (61) is in threaded connection with the fixing nut (62).

4. The pipe connecting device for natural gas pipeline laying according to claim 1, wherein: the number of the butterfly buckles (7) is four, and the distance between the upper butterfly buckle (7) and the lower butterfly buckle (7) is equal to the diameter of the inner tube (2).