Reducing tee joint

Abstract

The utility model discloses a reducing tee joint, which belongs to the technical field of pipeline connection and comprises a double-end pipe fitting and a single-end pipe fitting, the single-end pipe fitting is fixedly connected to the outer surface of the double-end pipe fitting and is communicated with the double-end pipe fitting, two internal thread connectors are inserted into two ends of the double-end pipe fitting in a sliding manner, and the two internal thread connectors are connected with two ends of the double-end pipe fitting in a sliding manner. The top end of the single-head pipe fitting is slidably connected with an external thread connector in an inserted mode, a sliding block is slidably connected into the single-head pipe fitting, connecting rods are movably hinged between the two internal thread connectors and the sliding block through hinged shafts respectively, and a spring is arranged in the single-head pipe fitting and located between the external thread connector and the sliding block. According to the reducing tee joint, branch and confluence connection between pipelines of different lengths is achieved, certain elasticity is achieved during connection, and the stability of connection between the pipelines of different lengths can be effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connection technical field more specifically, relate to a reducing tee joint. BACKGROUND

[0002] The reducing tee joint is an important pipeline connecting piece, is mainly used to connect the pipeline of different diameters, realizes the branching and confluence of pipeline, and it is widely used in petroleum, chemical industry, natural gas, electric power, aerospace and other multiple industrial fields.

[0003] At present, the reducing tee joint is used for the connection of pipeline, has three connecting ports, three connecting ports are connected with different pipelines respectively to realize the branching and confluence of gas-liquid conveying in pipeline, but most of the existing reducing tee joint volume size is usually fixed, and the pipeline length needs to be matched with the reducing tee joint, and the pipeline length is often too long or too short in actual use, the fixed volume reducing tee joint is difficult to match and connect with the pipeline that is too long or too short, in addition, the both ends of part of pipeline are prone to damage in actual use, in order to reduce the cost, the staff usually cuts off the damaged part of the pipeline and then uses, since the pipeline is shortened after cutting, it is easy to affect the connection effect of the reducing tee joint, causes the pipeline leakage, therefore, the utility model provides a reducing tee joint. UTILITY MODEL CONTENT

[0004] 1. Technical problem to be solved

[0005] In view of the problems in the prior art, the utility model aims at providing a reducing tee joint, which aims at solving the problems that the volume size of the reducing tee joint in the prior art is usually fixed, the pipeline length needs to be matched with the reducing tee joint, the pipeline length is often too long or too short in actual use, the fixed volume reducing tee joint is difficult to match and connect with the pipeline that is too long or too short, in addition, the both ends of part of pipeline are prone to damage in actual use, in order to reduce the cost, the staff usually cuts off the damaged part of the pipeline and then uses, since the pipeline is shortened after cutting, it is easy to affect the connection effect of the reducing tee joint, causes the pipeline leakage.

[0006] 2. Technical scheme

[0007] To solve the above problems, the utility model adopts the following technical scheme:

[0008] The utility model provides a variable diameter tee joint, including double -end pipe and single -end pipe, single -end pipe fixedly connected to the outer surface of double -end pipe, and single -end pipe and double -end pipe are through, the both ends of double -end pipe are slidably inserted with two internal thread connectors, the top of single -end pipe is slidably inserted with external thread connector, the inside of single -end pipe is slidably connected with sliding block, two internal thread connectors are respectively with sliding block between through articulated axle swing joint have connecting rod, the inside of single -end pipe is provided with spring, and spring is located between external thread connector and sliding block.

[0009] As a preferred scheme of the utility model, the opening of the double -end pipe and the single -end pipe is fixedly connected with the telescopic sealing ring, and the three telescopic sealing rings are in contact with the circumferential surface of the two internal thread connectors and the external thread connector.

[0010] As a preferred scheme of the utility model, the inside of the two internal thread connectors is fixedly connected with the connecting sealing ring, and the top of the external thread connector is fixedly connected with the same connecting sealing ring.

[0011] As a preferred scheme of the utility model, the circumferential inner wall of the double -end pipe and the single -end pipe is provided with three sliding groove groups, and the circumferential surface of the two internal thread connectors and the external thread connector is fixedly connected with the convex group, and the three convex groups are slidably connected in the three sliding groove groups.

[0012] As a preferred scheme of the utility model, the top of the sliding block is fixedly connected with the protection cylinder, and the protection cylinder is located on the inside of the spring and corresponds to the external thread connector.

[0013] 3. Advantage

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] (1) in the scheme, the elastic force of spring directly acts on the external thread connector, acts on the two internal thread connectors through sliding block and two connecting rods, the external thread connector and the two internal thread connectors extend to the outside of double -end pipe and single -end pipe under stress and keep a certain elasticity, and the two internal thread connectors and the external thread connector can be connected to longer pipeline within a certain range through elastic retraction, and the two internal thread connectors and the external thread connector can compensate shorter pipeline within a certain range through elastic extension, realize the connection between branch and confluence of pipelines of different lengths, and have a certain elasticity when connecting, which can effectively guarantee the stability of the connection between pipelines of different lengths. ACCURACY

[0016] Fig. 1 It is the front view of the utility model;

[0017] Fig. 2 It is the sectional view of the utility model;

[0018] Fig. 3 The exploded view of the utility model.

[0019] Explanation of reference numerals in the drawings:

[0020] 1, double-end pipe fitting; 2, single-end pipe fitting; 3, internal thread connector; 4, external thread connector; 5, sliding block; 6, connecting rod; 7, spring; 8, telescopic sealing ring; 9, connecting sealing ring; 10, sliding groove set; 11, protrusion set; 12, protective cylinder. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate 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 devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] Embodiment:

[0025] Please refer to Figs. 1-3The variable-diameter three-way joint comprises a double-end pipe 1 and a single-end pipe 2, the single-end pipe 2 is fixedly connected to the outer surface of the double-end pipe 1, and the single-end pipe 2 is in communication with the double-end pipe 1, two inner thread connectors 3 are slidably inserted into the two ends of the double-end pipe 1, an outer thread connector 4 is slidably inserted into the top end of the single-end pipe 2, a sliding block 5 is slidably connected in the single-end pipe 2, the two inner thread connectors 3 and the sliding block 5 are movably connected by a connecting rod 6 through a hinge shaft, a spring 7 is arranged in the single-end pipe 2 and located between the outer thread connector 4 and the sliding block 5.

[0026] In the embodiment, when connected with the pipes, the two inner thread connectors 3 and the outer thread connector 4 are respectively connected with three pipes through threads, the two inner thread connectors 3 and the outer thread connector 4 are respectively slid in the double-end pipe 1 and the single-end pipe 2 according to the length of the pipes, the spring 7 exerts an elastic force on the outer thread connector 4 and the sliding block 5, the sliding block 5 exerts the elastic force on the two inner thread connectors 3 through the two connecting rods 6, and the two inner thread connectors 3 and the outer thread connector 4 are forced to extend to the outside of the double-end pipe 1 and the single-end pipe 2, so that the connection of the pipes can be elastically compensated within a certain range, the two inner thread connectors 3 and the outer thread connector 4 can be stably connected with pipes of different lengths, and the pipes can be branched and merged through the double-end pipe 1 and the single-end pipe 2 after being connected.

[0027] Specifically, the double-end pipe 1 and the single-end pipe 2 are fixedly connected with elastic sealing rings 8 at the openings, and the three elastic sealing rings 8 are in contact with the circumferential surfaces of the two inner thread connectors 3 and the outer thread connector 4.

[0028] In the embodiment, the three elastic sealing rings 8 are in contact with the two inner thread connectors 3 and the outer thread connector 4, so that the sealing effect of the two inner thread connectors 3 and the outer thread connector 4 in the double-end pipe 1 and the single-end pipe 2 can be improved.

[0029] Specifically, the two inner thread connectors 3 are fixedly connected with connecting sealing rings 9, and the top end of the outer thread connector 4 is fixedly connected with the same connecting sealing rings 9.

[0030] In the embodiment, the two inner thread connectors 3 and the outer thread connector 4 connect the pipes, the three connecting sealing rings 9 are in contact with the end faces of the three pipes, and the sealing performance of the connection between the pipes and the two inner thread connectors 3 and the outer thread connector 4 is improved.

[0031] Specifically, the circumferential inner walls of the double-end pipe 1 and the single-end pipe 2 are provided with three sliding groove groups 10, the circumferential surfaces of the two inner thread connectors 3 and the outer thread connector 4 are fixedly connected with protrusion groups 11, and the three protrusion groups 11 are slidably connected in the three sliding groove groups 10.

[0032] In the embodiment, two slide groove groups 10 are arranged in the double-end pipe fitting 1, one slide groove group 10 is arranged in the single-end pipe fitting 2, and the three slide groove groups 10 and the three protrusion groups 11 keep the sliding of the two female threaded connectors 3 and the male threaded connector 4 stable.

[0033] Specifically, the top end of the sliding block 5 is fixedly connected with a protective cylinder 12, and the protective cylinder 12 is located on the inner side of the spring 7 and corresponds to the male threaded connector 4.

[0034] In the embodiment, the protective cylinder 12 penetrates the male threaded connector 4, facilitating the branching and confluence of the pipelines connected by the male threaded connector 4 and the pipelines connected by the two female threaded connectors 3, and meanwhile, the spring 7 is sleeved on the protective cylinder 12, and the protective cylinder 12 keeps the stress of the spring 7 stable.

[0035] Working principle: when connecting the pipelines, the two female threaded connectors 3 and the male threaded connector 4 are respectively connected with different pipelines through threads, the pipelines are branched and converged through the double-end pipe fitting 1 and the single-end pipe fitting 2, for the connection of excessively long pipelines, the two female threaded connectors 3 and the male threaded connector 4 are respectively retracted into the double-end pipe fitting 1 and the single-end pipe fitting 2 according to the length of the pipelines, the two female threaded connectors 3 push the sliding block 5 to extrude the spring 7 through the two connecting rods 6, the male threaded connector 4 directly extrudes the spring 7, the spring 7 exerts elastic force on the male threaded connector 4 and the two female threaded connectors 3 after being pressed, so that the two female threaded connectors 3 and the male threaded connector 4 are stably connected with the pipelines, for the pipelines that are excessively short or cut, the spring 7 exerts elastic force on the male threaded connector 4 and the sliding block 5, the male threaded connector 4 is pushed, the sliding block 5 pushes the two female threaded connectors 3 through the two connecting rods 6, and the two female threaded connectors 3 and the male threaded connector 4 are both extended outward to compensate the pipelines, and under the action of the spring 7, the connection of the pipelines is kept stable.

[0036] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacements or changes to the technical scheme and the improved concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A reducing tee comprising a double-end pipe (1) and a single-end pipe (2), characterized in that: The single-end pipe (2) is fixedly connected to the outer surface of the double-end pipe (1), and the single-end pipe (2) is penetrated by the double-end pipe (1), two inner thread connectors (3) are slidingly inserted into the two ends of the double-end pipe (1), an outer thread connector (4) is slidingly inserted into the top end of the single-end pipe (2), a sliding block (5) is slidingly connected into the single-end pipe (2), a connecting rod (6) is movably connected between the two inner thread connectors (3) and the sliding block (5) through a hinge shaft, a spring (7) is arranged in the single-end pipe (2) and located between the outer thread connector (4) and the sliding block (5).

2. The variable diameter tee joint of claim 1, wherein: The double-end pipe (1) and the single-end pipe (2) are fixedly connected with elastic sealing rings (8) at the openings, and the three elastic sealing rings (8) are in contact with the circumferential surfaces of the two inner thread connectors (3) and the outer thread connector (4).

3. The variable diameter tee joint of claim 2, wherein: The two inner thread connectors (3) are fixedly connected with connecting sealing rings (9), and the top end of the outer thread connector (4) is fixedly connected with the same connecting sealing ring (9).

4. The variable diameter tee joint of claim 3, wherein: The circumferential inner walls of the double-end pipe (1) and the single-end pipe (2) are provided with three sliding groove groups (10), the circumferential surfaces of the two inner thread connectors (3) and the outer thread connector (4) are fixedly connected with three protrusion groups (11), and the three protrusion groups (11) are slidingly connected into the three sliding groove groups (10).

5. The variable diameter tee joint of claim 4, wherein: The top end of the sliding block (5) is fixedly connected with a protective cylinder (12), and the protective cylinder (12) is located on the inner side of the spring (7) and corresponds to the outer thread connector (4).

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