Special T-shaped three-way pipe fitting for gas pipeline

Abstract

The utility model discloses a special T-shaped three-way pipe fitting for a gas pipeline, which comprises a T-shaped pipe fitting main body, the outer wall of the end part of the T-shaped pipe fitting main body is provided with an external thread groove, the T-shaped pipe fitting main body is provided with a sealing mechanism at the external thread groove, and the T-shaped pipe fitting main body is internally provided with a flow regulating mechanism. When the three-way pipe fitting is not firmly connected, communication cannot be achieved in the pipe fitting, so that the risk of leakage is avoided, a flow adjusting mechanism is further arranged in the device, control over the gas flow at the outlet ends of the two sides is achieved by rotating a rotary table by personnel, when the device is not used, the inlet end of the three-way pipe fitting can be sealed, and therefore the applicability is wider, and the practicability is higher. And therefore, the device has good practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to three -way pipe fitting technical field, concretely, a special T type three -way pipe fitting of gas pipeline is provided. BACKGROUND

[0002] The special T type three -way pipe fitting of gas pipeline is mainly used for shunting gas pipeline to two directions, is usually used for the connection of branch pipeline, makes gas can flow to different equipment or area smoothly, thereby realizes the distribution and control of gas system.

[0003] According to the three -way pipe fitting of the public number for CN109519630A provides a kind of three -way pipe fitting, the three -way pipe fitting is equipped with pressure regulating device, and the pressure regulating device is operated by the pressure in three -way pipe fitting to control medium flow.

[0004] The above device has the following disadvantages: the device can only be balanced by the pressure regulating device to adjust the medium flow of the two ends of the three-way pipe fitting during use, cannot control the on-demand distribution of the medium flow of the two ends, and the three-way pipe fitting is always in a connected state and cannot be closed, so the application occasions are limited, and the practicality is not strong. During use, the connection of the three-way pipe fitting is not firm, and the risk of medium leakage is easy to occur, which not only causes environmental pollution and economic loss, but also threatens the health of personnel. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a special T type three -way pipe fitting of gas pipeline to solve the problems in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a special T type three -way pipe fitting of gas pipeline, including T type pipe fitting main part, the outer wall of the end of T type pipe fitting main part is equipped with external thread groove, sealing mechanism is installed at T type pipe fitting main part in external thread groove, flow regulating mechanism is installed in T type pipe fitting main part.

[0007] As a preferred technical scheme of the utility model, the through hole is provided in the T type pipe fitting main part to communicate with the end portions, the first connecting piece on the sealing mechanism is fixedly installed on the inner wall of the T type pipe fitting main part, the sealing block is fixedly installed at the end of the first connecting piece and located at the end portion of the T type pipe fitting main part, the first sealing ring is slidably connected between the sealing block and the inner wall of the T type pipe fitting main part, and the second connecting piece is fixedly installed on the T type pipe fitting main part inside the first sealing ring.

[0008] As the preferred technical scheme of the utility model, the sliding cavity is opened in the side wall of the T-shaped pipe body, the movable rod is movably connected in the sliding cavity, the spring is fixedly connected between the movable rod tail end and the sliding cavity inner wall, the movable rod front end penetrates the sliding cavity and is fixedly installed with the baffle at the outer thread groove, the limiting groove is opened between the sliding cavity and the T-shaped pipe body inner wall, the sealing plug is fixedly installed at the both ends of the movable rod in the limiting groove and is movably connected with the sliding cavity, and the second connector tail end is fixedly installed in the movable rod middle part through the limiting groove.

[0009] As the preferred technical scheme of the utility model, the flow adjusting mechanism comprises a second sealing ring fixedly installed at the intersection of the through hole in the T-shaped pipe body, the driving cavity is fixedly installed on the middle top wall of the T-shaped pipe body, the inner thread groove is opened on the driving cavity bottom inner wall, the threaded rod is rotatably installed through the bearing and penetrates the both side walls of the driving cavity, and the through hole is opened between the driving cavity and the T-shaped pipe body top and is movably connected with the rotating rod.

[0010] As the preferred technical scheme of the utility model, the first bevel gear is fixedly installed at one end of the threaded rod in the driving cavity, the second bevel gear is meshed above the first bevel gear, the first tooth hole is opened in the middle part of the second bevel gear, and the first tooth ring is meshed in the middle part of the rotating rod.

[0011] As the preferred technical scheme of the utility model, the flow limiting block is threadedly connected on the inner thread groove, the second tooth hole is opened in the top center of the flow limiting block, the second tooth ring is meshed in the bottom end of the rotating rod, and the rotating disc is fixedly installed on the top of the rotating rod.

[0012] As the preferred technical scheme of the utility model, the sliding rod is fixedly installed between the driving cavity outer wall and the second sealing ring on both sides, the flow limiting plate is movably connected on the sliding rod, the threaded rod penetrates and is threadedly connected with the flow limiting plate, and the limiting plate is fixedly installed on the top of the rotating rod in the driving cavity.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model discloses a sealing mechanism is arranged, when the tee pipe is not firm, the pipe inside cannot realize intercommunication, thereby avoiding the risk of leakage, the flow adjusting mechanism is further arranged in the utility model, the personnel rotating disc is rotated to realize the control of both sides outlet end gas flow, when not using, can also seal the tee pipe import end, therefore, the applicability is more wide, and thus it has good practicality. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0016] Figure 1 is a plan view of a T-shaped three-way pipe fitting special for gas pipeline according to the embodiment of the present application;

[0017] Figure 2 is a plan view of the A part in the embodiment of the present application; Figure 1

[0018] Figure 3 is a plan view of the B part in the embodiment of the present application. Figure 1

[0019] Reference signs:

[0020] 1, T-shaped pipe fitting main body; 2, external thread groove; 3, sealing mechanism; 4, flow regulating mechanism; 5, first connecting piece; 6, sealing block; 7, first sealing ring; 8, second connecting piece; 9, sliding cavity; 10, moving rod; 11, spring; 12, limiting groove; 13, sealing plug; 14, second sealing ring; 15, driving cavity; 16, internal thread groove; 17, threaded rod; 18, rotating rod; 19, first bevel gear; 20, second bevel gear; 21, first tooth hole; 22, first tooth ring; 23, flow limiting block; 24, second tooth hole; 25, second tooth ring; 26, rotating disc; 27, sliding rod; 28, flow limiting plate; 29, limiting plate. DETAILED DESCRIPTION

[0021] The present application will be further described below in combination with the drawings and specific embodiments:

[0022] Please refer to Figures 1-3 , a T-shaped three-way pipe fitting special for gas pipeline according to the embodiment of the present application, comprising a T-shaped pipe fitting main body 1, external thread grooves 2 are formed on the end outer walls of the T-shaped pipe fitting main body 1, a sealing mechanism 3 is installed at the external thread grooves 2 of the T-shaped pipe fitting main body 1, and a flow regulating mechanism 4 is installed inside the T-shaped pipe fitting main body 1.

[0023] Among them, the external thread grooves 2 are connected with the gas pipeline.

[0024] ​​In this embodiment, the T-shaped pipe body 1 is internally provided with a through hole for connecting the end portions to each other, and the inner wall of the T-shaped pipe body 1 is fixedly provided with a first connecting piece 5 of a sealing mechanism 3, and the end portion of the first connecting piece 5 is fixedly provided with a sealing block 6, and the sealing block 6 is slidingly connected with a first sealing ring 7 between the inner wall of the T-shaped pipe body 1, and the first sealing ring 7 is fixedly provided with a second connecting piece 8 in the T-shaped pipe body 1.

[0025] The sealing block 6 cooperates with the first sealing ring 7 to seal the end portion of the tee pipe, and the second connecting piece 8 drives the first sealing ring 7 to move, so that the tee pipe is communicated with the gas pipeline.

[0026] In this embodiment, a sliding cavity 9 is formed in the side wall of the T-shaped pipe body 1, a moving rod 10 is movably connected in the sliding cavity 9, a spring 11 is fixedly connected between the end of the moving rod 10 and the inner wall of the sliding cavity 9, a baffle is fixedly installed at the outer thread groove 2 and penetrates the sliding cavity 9 at the front end of the moving rod 10, a limiting groove 12 is formed between the sliding cavity 9 and the inner wall of the T-shaped pipe body 1, and sealing plugs 13 are fixedly installed at both ends of the limiting groove 12 and slidingly connected with the sliding cavity 9, and the end of the second connecting piece 8 penetrates the limiting groove 12 and is fixedly installed in the middle of the moving rod 10.

[0027] The spring 11 functions to reset the moving rod 10, and when the external gas pipeline is connected to the outer thread groove 2, the moving rod 10 is extruded into the sliding cavity 9 through the baffle and the spring 11 is compressed, at this time, the moving rod 10 drives the second connecting piece 8 to move together, and the sealing plug 13 functions to prevent internal gas leakage.

[0028] In this embodiment, the flow regulating mechanism 4 comprises a second sealing ring 14 fixedly installed at the intersection of the through hole in the T-shaped pipe body 1, a driving cavity 15 fixedly installed on the top wall of the middle portion of the T-shaped pipe body 1, an inner thread groove 16 formed on the bottom inner wall of the driving cavity 15, a threaded rod 17 rotatably installed through the bearings and penetrating the middle portions of the two side walls of the driving cavity 15, and a through hole formed between the driving cavity 15 and the top portion of the T-shaped pipe body 1 and slidingly connected with a rotating rod 18.

[0029] In this embodiment, one end of the threaded rod 17 located in the driving cavity 15 is fixedly provided with a first bevel gear 19, the first bevel gear 19 engages a second bevel gear 20 above, the second bevel gear 20 penetrates to form a first tooth hole 21 in the middle portion, and the first tooth hole 21 engages a first tooth ring 22 formed in the middle portion of the rotating rod 18.

[0030] When the rotating rod 18 rotates, the second bevel gear 20 can be driven to rotate through the engagement of the first tooth ring 22 and the first tooth hole 21, the first bevel gear 19 is driven to rotate by the second bevel gear 20, and the threaded rod 17 is driven to rotate by the first bevel gear 19.

[0031] The inner threaded groove 16 is threaded with the flow limiting block 23 in the embodiment, the second tooth hole 24 is arranged at the top center of the flow limiting block 23, the second tooth ring 25 is arranged at the bottom end of the rotating rod 18, and the rotating rod 18 is fixedly installed with the rotating disc 26 at the top.

[0032] The rotating disc 26 drives the rotating rod 18 to rotate, the rotating rod 18 can be moved up and down through the meshing of the second tooth ring 25 and the second tooth hole 24, so as to control the flow of the inlet end of the tee pipe fitting.

[0033] The sliding rod 27 is fixedly installed between the outer wall of the driving cavity 15 and the second sealing ring 14 on both sides in the embodiment, the flow limiting plate 28 is slidably connected to the sliding rod 27, the threaded rod 17 penetrates and is threaded with the flow limiting plate 28, and the rotating rod 18 is fixedly installed with the limiting plate 29 at the top of the driving cavity 15.

[0034] The threaded rod 17 drives the flow limiting plates 28 at both ends of the outlet to move left and right, so as to control the flow of the outlet at both ends of the distribution, and the limiting plate 29 controls the upward movement of the rotating rod 18, so as to facilitate the meshing of the first tooth ring 22 and the first tooth hole 21.

[0035] In specific application, the outer threaded groove 2 is connected with the gas pipeline first, the external gas pipeline is pushed to move into the sliding cavity 9 and compress the spring 11 through the baffle, the moving rod 10 drives the second connecting piece 8 to move together, the second connecting piece 8 drives the first sealing ring 7 to move, the first sealing ring 7 is dislocated with the sealing block 6, so that the tee pipe fitting is communicated with the gas pipeline, the rotating disc 26 is rotated by personnel, the rotating rod 18 is rotated, the second bevel gear 20 is driven to rotate through the meshing of the first tooth ring 22 and the first tooth hole 21 when the rotating rod 18 is rotated, the first bevel gear 19 is driven to rotate by the second bevel gear 20, the threaded rod 17 is driven to rotate by the first bevel gear 19, the flow limiting plates 28 at both ends of the outlet are driven to move left and right by the threaded rod 17 when the threaded rod 17 is rotated, so as to control the flow of the outlet at both ends of the distribution, the rotating disc 26 is pressed downward by personnel, the first tooth ring 22 is dislocated with the first tooth hole 21 when the second tooth ring 25 is meshed with the second tooth hole 24, the flow limiting block 23 is rotated by the rotating rod 18 when the rotating disc 26 is continuously rotated, and the flow limiting block 23 is moved up and down because the flow limiting block 23 is threaded with the inner threaded groove 16, so as to control the flow of the inlet end of the tee pipe fitting.

[0036] In the description of the utility model, it is necessary to explain that the terms "top", "bottom", "one side", "the other side", "front", "back", "intermediate position", "interior", "top end", "bottom end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A T-shaped tee fitting specifically for gas pipelines, characterized in that, The T-shaped pipe fitting body (1) is provided with external thread grooves (2) on the outer wall of each end of the T-shaped pipe fitting body (1). A sealing mechanism (3) is installed at the external thread groove (2) of the T-shaped pipe fitting body (1). A flow regulating mechanism (4) is installed inside the T-shaped pipe fitting body (1).

2. The T-type tee fitting for gas pipelines according to claim 1, characterized in that, The T-shaped pipe body (1) has through holes inside to connect the ends to each other. The inner wall of the T-shaped pipe body (1) is fixedly installed with a first connector (5) on a sealing mechanism (3). A sealing block (6) is fixedly installed at the end of the first connector (5) and at the end of the T-shaped pipe body (1). A first sealing ring (7) is slidably connected between the sealing block (6) and the inner wall of the T-shaped pipe body (1). A second connector (8) is fixedly installed inside the T-shaped pipe body (1).

3. A T-shaped tee fitting for gas pipelines according to claim 2, characterized in that, The T-shaped pipe body (1) has a sliding cavity (9) inside its side wall. A moving rod (10) is movably connected inside the sliding cavity (9). A spring (11) is fixedly connected between the end of the moving rod (10) and the inner wall of the sliding cavity (9). A baffle is fixedly installed at the front end of the moving rod (10) through the sliding cavity (9) and at the external thread groove (2). A limiting groove (12) is opened between the sliding cavity (9) and the inner wall of the T-shaped pipe body (1). Sealing plugs (13) are fixedly installed at both ends of the moving rod (10) at the limiting groove (12) and are slidably connected to the sliding cavity (9). The end of the second connecting piece (8) passes through the limiting groove (12) and is fixedly installed in the middle of the moving rod (10).

4. A T-shaped tee fitting for gas pipelines according to claim 1, characterized in that, The flow regulating mechanism (4) includes a second sealing ring (14) fixedly installed at the intersection of the through holes inside the T-shaped pipe body (1). A drive cavity (15) is fixedly installed on the top wall of the middle part of the T-shaped pipe body (1). An internal thread groove (16) is opened on the inner wall of the bottom of the drive cavity (15). A threaded rod (17) is installed through the middle of the two side walls of the drive cavity (15) and rotated through the bearing. A through hole is opened between the drive cavity (15) and the top of the T-shaped pipe body (1) and a rotating rod (18) is slidably connected.

5. A T-shaped tee fitting for gas pipelines according to claim 4, characterized in that, The threaded rod (17) is fixedly installed with a first conical wheel (19) at one end in the drive cavity (15). The first conical wheel (19) meshes with the second conical wheel (20) above. The second conical wheel (20) has a first toothed hole (21) through the middle. The first toothed hole (21) meshes with the first toothed ring (22) in the middle of the rotating rod (18).

6. A T-shaped tee fitting for gas pipelines according to claim 4, characterized in that, The internal thread groove (16) is threadedly connected to a flow limiting block (23). The flow limiting block (23) has a second toothed hole (24) at the top center. The second toothed hole (24) meshes with a second toothed ring (25) at the bottom end of the rotating rod (18). The rotating rod (18) has a turntable (26) fixedly installed on its top.

7. A T-shaped tee fitting for gas pipelines according to claim 4, characterized in that, A slide rod (27) is fixedly installed between the outer wall of the drive cavity (15) and the second sealing rings (14) on both sides. A flow limiting plate (28) is slidably connected to each slide rod (27). The threaded rod (17) passes through and is threadedly connected to the flow limiting plate (28). A limiting plate (29) is fixedly installed on the top of the drive cavity (15).

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