Gas pipeline connecting end convenient to disassemble and assemble

Abstract

The utility model discloses a gas pipeline connecting end convenient to disassemble and assemble. The gas pipeline connecting end comprises a connector, a gas pipeline and an adjusting mechanism. Connecting pipes moving in the length direction of the connector are arranged at the two ends of the connector, a circular ring is fixedly connected to the middle of the inner wall of the connector, bosses are fixedly connected to the inner walls of the connecting pipes, and telescopic pipes are fixedly connected between the circular ring and the bosses; the gas pipeline is fixed during laying, the end face of the gas pipeline can be inserted into a gap between the boss and the connecting pipe, and sealing treatment is conducted between the gas pipeline and the boss and between the gas pipeline and the connecting pipe. According to the gas pipeline connector, the adjusting mechanism drives the connecting pipe to move to be in butt joint with or detached from the gas pipeline, the connecting pipe drives the telescopic pipe to stretch out and draw back when moving, stretching out and drawing back of the whole structure can be achieved, the fixed gas pipeline does not need to be detached when the connector is detached, detaching is convenient, and the detaching efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline joints, and more specifically to a gas pipeline connecting end head which is easy to disassemble and assemble. Background Art

[0002] Gas is a general term for gaseous fuels. It can burn and release heat for use by urban residents and industrial enterprises. There are many types of gas, mainly natural gas, artificial gas, liquefied petroleum gas, biogas, and coal-to-gas. It is an indispensable energy source in people's daily lives and has brought great convenience to people.

[0003] The gas pipeline connection end is a connection tool between pipelines and a detachable connection point between pipelines. It plays an indispensable and important role in pipe fittings. In traditional gas pipeline connection ends, the gas pipeline is inserted into both ends of the connection end and fixed. Since the gas pipeline is fixed when it is laid, the connection end usually needs to be disassembled together with the gas pipeline for disassembly and replacement. Otherwise, the connection end cannot be removed, which affects the efficiency of disassembly of the connection end. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model aims to provide a gas pipeline connection end head which is easy to disassemble and assemble.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A gas pipeline connecting end head which is easy to disassemble and assemble comprises a connecting head, a gas pipeline and a regulating mechanism.

[0007] Both ends of the connector are provided with connecting pipes that move along the length direction of the connector, a circular ring is fixedly connected to the middle position of the inner wall of the connector, a boss is fixedly connected to the inner wall of the connecting pipe, and a telescopic pipe is fixedly connected between the circular ring and the boss; the gas pipeline is fixed during laying, and the end face of the gas pipeline can be inserted into the gap between the boss and the connecting pipe, and the gas pipeline, the boss and the connecting pipe are sealed; the adjusting mechanism is installed on the connector, and the adjusting mechanism drives the connecting pipe to move along the length direction of the connector and dock with the gas pipeline.

[0008] As a further description of the above technical solution: the adjustment mechanism includes two fixing rings which are fixedly sleeved on the outer wall of the connecting head and spaced apart, a bidirectional screw located above the connecting head and passing through the fixing rings is rotatably connected between the two fixing rings, an upper ear plate is fixedly connected to the outer wall of the connecting pipe, an adjusting nut is fixedly embedded on the upper ear plate, and the adjusting nut is threadedly connected to the outer wall of the bidirectional screw.

[0009] As a further description of the above technical solution: a guide rod located below the connecting head and passing through the fixing ring is fixedly connected between the two fixing rings, a lower ear plate is fixedly connected to the outer wall of the connecting tube, and the lower ear plate is slidably arranged on the outer wall of the guide rod.

[0010] As a further description of the above technical solution: a first annular sealing ring is fixedly connected between the boss and the inner wall of the connecting pipe, a second annular sealing ring is fixedly connected to one end of the gas pipeline facing the connecting head, and the first annular sealing ring abuts against the second annular sealing ring.

[0011] As a further description of the above technical solution: the longitudinal cross-section of the second annular sealing ring is an isosceles trapezoidal structure, the first annular sealing ring is provided with a trapezoidal groove adapted to the second annular sealing ring, and the raised portion of the second annular sealing ring can be inserted into the trapezoidal groove of the first annular sealing ring.

[0012] As a further description of the above technical solution: the lengths of the bidirectional screw and the guide rod are the same and are less than or equal to the length of the connecting head, and both ends of the guide rod are fixedly sleeved with limiting rings.

[0013] As a further description of the above technical solution: a control nut is fixedly sleeved on the outer wall of the bidirectional screw, and the control nut is located between two fixing rings.

[0014] As a further description of the above technical solution: the telescopic tube is a stainless steel metal bellows.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] The connecting pipe is driven to move by the adjusting mechanism to connect or disassemble with the gas pipeline. When the connecting pipe moves, it drives the telescopic pipe to expand and contract, so that the overall structure can be expanded and contracted, so that when the connecting head is disassembled, there is no need to disassemble the fixed gas pipeline, which facilitates disassembly and improves disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic cross-sectional structure diagram of the utility model as a whole;

[0019] Figure 3 For this utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0020] Figure 4 For this utility model Figure 2 The enlarged schematic diagram of point B in the middle;

[0021] Figure 5It is a schematic diagram of the structure of the first annular sealing ring and the second annular sealing ring of the utility model.

[0022] Description of the numbers in the figure:

[0023] 1. Gas pipeline; 2. Connector; 3. Adjustment mechanism; 31. Fixing ring; 32. Bidirectional screw; 33. Upper ear plate; 34. Adjustment nut; 35. Guide rod; 36. Lower ear plate; 37. Limiting ring; 38. Control nut; 4. Connecting pipe; 5. Circular ring; 6. Boss; 7. Telescopic pipe; 8. First annular sealing ring; 81. Trapezoidal groove; 9. Second annular sealing ring. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0025] See also Figures 1 to 5 In the utility model, a gas pipeline connection end head which is easy to disassemble and assemble comprises a connection head 2, a gas pipeline 1 and a regulating mechanism 3.

[0026] Both ends of the connector 2 are provided with connecting pipes 4 that move along the length direction of the connector 2, a circular ring 5 is fixedly connected to the middle position of the inner wall of the connector 2, a boss 6 is fixedly connected to the inner wall of the connecting pipe 4, and a telescopic pipe 7 is fixedly connected between the circular ring 5 and the boss 6; the gas pipeline 1 is fixed during laying, and the end face of the gas pipeline 1 can be inserted into the gap between the boss 6 and the connecting pipe 4, and the gas pipeline 1, the boss 6 and the connecting pipe 4 are sealed; the adjusting mechanism 3 is installed on the connector 2, and the adjusting mechanism 3 drives the connecting pipe 4 to move along the length direction of the connector 2 and dock with the gas pipeline 1.

[0027] In this embodiment, preferably, the adjustment mechanism 3 includes two fixing rings 31 fixedly sleeved on the outer wall of the connector 2 and spaced apart, a bidirectional screw 32 located above the connector 2 and passing through the fixing rings 31 is rotatably connected between the two fixing rings 31, an upper ear plate 33 is fixedly connected to the outer wall of the connecting tube 4, an adjusting nut 34 is fixedly embedded on the upper ear plate 33, and the adjusting nut 34 is threadedly connected to the outer wall of the bidirectional screw 32;

[0028] Specifically, the bidirectional screw 32 can rotate to drive the adjusting nut 34 to make the upper ear plate 33 drive the connecting pipe 4 to move, and the connection and disassembly with the gas pipeline 1 can be achieved through the movement of the connecting pipe 4.

[0029] In this embodiment, preferably, a guide rod 35 located below the connector 2 and passing through the fixing ring 31 is fixedly connected between the two fixing rings 31, and a lower ear plate 36 is fixedly connected to the outer wall of the connecting pipe 4, and the lower ear plate 36 is slidably arranged on the outer wall of the guide rod 35;

[0030] Specifically, when the connecting pipe 4 moves, it drives the lower ear plate 36 to slide along the guide rod 35, so as to limit the connecting pipe 4, so that the connecting pipe 4 will not rotate circumferentially with the rotation of the bidirectional screw 32. The connecting pipe 4 can only move in a straight line to connect and disassemble with the gas pipeline 1, and the circumferential rotation of the connecting pipe 4 to prevent the telescopic tube 7 from twisting.

[0031] In this embodiment, preferably, a first annular sealing ring 8 is fixedly connected between the boss 6 and the inner wall of the connecting pipe 4, and a second annular sealing ring 9 is fixedly connected to one end of the gas pipeline 1 facing the connecting head 2, the first annular sealing ring 8 is low-connected with the second annular sealing ring 9, and the longitudinal section of the second annular sealing ring 9 is an isosceles trapezoidal structure, and a trapezoidal groove 81 adapted to the second annular sealing ring 9 is opened on the first annular sealing ring 8, and the convex portion of the second annular sealing ring 9 can be inserted into the trapezoidal groove 81 of the first annular sealing ring 8;

[0032] Specifically, the first annular sealing ring 8 can be low-jointed with the second annular sealing ring 9. As the extrusion pressure of the low-joint between the connecting pipe 4 and the gas pipeline 1 increases, the first annular sealing ring 8 and the second annular sealing ring 9 are deformed to completely fill the gap between the boss 6, the connecting pipe 4 and the gas pipeline 1, so that the connection is sealed with a better sealing effect.

[0033] In this embodiment, preferably, the lengths of the bidirectional screw 32 and the guide rod 35 are the same and less than or equal to the length of the connector 2, and both ends of the guide rod 35 are fixedly sleeved with limit rings 37;

[0034] Specifically, the limiting ring 37 can prevent the lower ear plate 36 and the guide rod 35 from being separated, and can prevent the adjusting nut 34 and the bidirectional screw 32 from being separated.

[0035] In this embodiment, preferably, a control nut 38 is fixedly sleeved on the outer wall of the bidirectional screw 32, and the control nut 38 is located between the two fixing rings 31;

[0036] Specifically, the bidirectional screw rod 32 can be easily rotated by manipulating the nut 38 .

[0037] In this embodiment, preferably, the telescopic tube 7 is a stainless steel metal bellows;

[0038] Specifically, the ring 5 and the boss 6 are sealed and connected by the telescopic tube 7 which is a stainless steel metal bellows, and can be telescoped along with the movement of the connecting tube 4 .

[0039] The working principle and use process of this utility model:

[0040] After the gas pipeline 1 is fixed, the connector 2 is placed between the two gas pipelines 1. The control nut 38 is used to drive the bidirectional screw 32 to rotate by a wrench. Under the thread transmission of the bidirectional screw 32, the two adjusting nuts 34 threadedly connected at both ends are moved away from each other. The adjusting nut 34 drives the upper ear plate 33 to move the connecting pipe 4 toward the gas pipeline 1. During the movement of the connecting pipe 4, the telescopic pipe 7 is driven to expand and contract until the boss 6 in the connecting pipe 4 contacts the gas pipeline 1, and the first annular sealing ring 8 can be low-contacted with the second annular sealing ring 9. As the extrusion pressure between the connecting pipe 4 and the gas pipeline 1 increases, the first annular sealing ring 8 and the second annular sealing ring 9 are deformed to completely fill the gap between the boss 6, the connecting pipe 4 and the gas pipeline 1, so that the connection is sealed.

[0041] At the same time, during disassembly, the control nut 38 is used to drive the bidirectional screw 32 to reverse through a wrench, so that the connecting pipe 4 is reset and the telescopic tube 7 is contracted until the boss 6 in the connecting pipe 4 contacts the connecting head 2. At this time, the connecting pipe 4 is completely separated from the gas pipeline 1, and the connecting head 2 can be removed, so that the gas pipeline 1 does not need to be disassembled when the connecting head 2 is disassembled, thereby improving the disassembly efficiency.

[0042] The electronic components and modules used in the content of this utility model can all be parts that are commonly used in the market and can realize the specific functions in this case, and the specific models and sizes can be selected and adjusted according to actual needs. The electronic components and modules are all connected to an external power supply and a control switch for use. Their specific circuit connection methods and methods of use are commonly used public technologies and will not be elaborated on here.

[0043] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A gas pipeline connection end that is easy to disassemble and assemble, characterized in that: include: A connector (2), wherein both ends of the connector (2) are provided with a connecting pipe (4) movable along the length direction of the connector (2), a circular ring (5) is fixedly connected to the middle position of the inner wall of the connector (2), a boss (6) is fixedly connected to the inner wall of the connecting pipe (4), and a telescopic pipe (7) is fixedly connected between the circular ring (5) and the boss (6); A gas pipeline (1), wherein the gas pipeline (1) is fixed during laying, and the end face of the gas pipeline (1) can be inserted into the gap between the boss (6) and the connecting pipe (4), and the gas pipeline (1) is sealed with the boss (6) and the connecting pipe (4); An adjusting mechanism (3) is installed on the connecting head (2), and the adjusting mechanism (3) drives the connecting pipe (4) to move along the length direction of the connecting head (2) and to dock with the gas pipeline (1).

2. The easily disassembled gas pipeline connection end according to claim 1 is characterized in that: The adjustment mechanism (3) comprises two fixed rings (31) which are fixedly sleeved on the outer wall of the connecting head (2) and are spaced apart from each other; a bidirectional screw (32) which is located above the connecting head (2) and passes through the fixed rings (31) is rotatably connected between the two fixed rings (31); an upper ear plate (33) is fixedly connected to the outer wall of the connecting pipe (4); an adjustment nut (34) is fixedly embedded on the upper ear plate (33); and the adjustment nut (34) is threadedly connected to the outer wall of the bidirectional screw (32).

3. The easily disassembled gas pipeline connection end according to claim 2 is characterized in that: A guide rod (35) located below the connector (2) and passing through the fixing ring (31) is fixedly connected between the two fixing rings (31); a lower ear plate (36) is fixedly connected to the outer wall of the connecting pipe (4); and the lower ear plate (36) is slidably arranged on the outer wall of the guide rod (35).

4. The easily disassembled gas pipeline connection end according to claim 1 is characterized in that: A first annular sealing ring (8) is fixedly connected between the boss (6) and the inner wall of the connecting pipe (4), and a second annular sealing ring (9) is fixedly connected to one end of the gas pipeline (1) facing the connecting head (2), and the first annular sealing ring (8) abuts against the second annular sealing ring (9).

5. The easily disassembled gas pipeline connection end according to claim 4 is characterized in that: The longitudinal section of the second annular sealing ring (9) is an isosceles trapezoidal structure; the first annular sealing ring (8) is provided with a trapezoidal groove (81) adapted to the second annular sealing ring (9); and the convex portion of the second annular sealing ring (9) can be inserted into the trapezoidal groove (81) of the first annular sealing ring (8).

6. The easily disassembled gas pipeline connection end according to claim 3, characterized in that: The bidirectional screw rod (32) and the guide rod (35) have the same length and are less than or equal to the length of the connector (2), and both ends of the guide rod (35) are fixedly sleeved with limit rings (37).

7. The easily disassembled gas pipeline connection end according to claim 2, characterized in that: A control nut (38) is fixedly sleeved on the outer wall of the bidirectional screw rod (32), and the control nut (38) is located between the two fixing rings (31).

8. The easily disassembled gas pipeline connection end according to claim 1, characterized in that: The telescopic tube (7) is a stainless steel metal bellows.

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