Mechanical connecting device for plastic pipeline fluid conveying

Abstract

The utility model is applicable to the technical field of pipeline connection, and provides a mechanical connecting device for plastic pipeline fluid transportation, which comprises a three-way joint body, and three interfaces of the three-way joint body are respectively an interface I, an interface II and an interface III; the outer side wall of the three-way connector body is connected with a first air inlet, a second air inlet and a third air inlet. A first air bag used for sealing the first connector, a second air bag used for sealing the second connector and a third air bag used for sealing the third connector are arranged in the three-way connector body. The first air inlet is communicated with the first air bag, the second air inlet is communicated with the second air bag, and the third air inlet is communicated with the third air bag. Therefore, the flow of fluid conveyed in the pipeline can be adjusted, and the conditions that an electronic element is short-circuited or the valve is rusted and difficult to rotate and the like cannot occur in a peat environment.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a mechanical connection device for fluid transportation of plastic pipelines. Background Art

[0002] A tee joint is a common mechanical connector used to connect three pipelines to form a stable whole, realizing fluid branching and confluence to meet different transmission requirements.

[0003] In addition to connecting pipelines, valves can be arranged inside the existing tee joints to change the flow rate in the pipelines. However, in a peat environment, peat will adhere to the surface of the valves, hindering the normal opening and closing of the valves. Moreover, the electronic components in the valves and the valves will be damaged more quickly when they are in such a humid environment for a long time, resulting in situations such as short circuits of electronic components or difficult rotation of rusted valves, making it impossible for workers to adjust the flow rate of fluid transportation.

[0004] To sum up, the existing technology obviously has inconveniences and defects in actual use, so it is necessary to improve it. Content of the Utility Model

[0005] Aiming at the above defects, the purpose of the utility model is to provide a mechanical connection device for fluid transportation of plastic pipelines, which can adjust the flow rate of fluid transportation in the pipeline and will not have situations such as short circuits of electronic components or difficult rotation of rusted valves in a peat environment.

[0006] To achieve the above purpose, the utility model provides a mechanical connection device for fluid transportation of plastic pipelines, including a tee joint body. The three interfaces of the tee joint body are interface one, interface two and interface three respectively. An air inlet one, an air inlet two and an air inlet three are connected to the outer side wall of the tee joint body. Inside the tee joint body, an airbag one for closing interface one, an airbag two for closing interface two and an airbag three for closing interface three are arranged. And the air inlet one is communicated with the airbag one, the air inlet two is communicated with the airbag two, and the air inlet three is communicated with the airbag three.

[0007] According to the mechanical connection device for fluid transportation of plastic pipelines described in the utility model, after the airbag one expands, it is in a disc shape and closely fits with the inside of interface one. After the airbag two expands, it is in a cylindrical shape, and the length of the airbag two after expansion is greater than the inner diameter of interface two. After the airbag three expands, it is in a disc shape and closely fits with the inside of interface three.

[0008] A mechanical connection device for fluid transportation in plastic pipes according to the present utility model, the inlet gas one is located at the side of the interface one, and one end of the airbag one is fixedly connected to the inlet gas one; the inlet gas two is located at the outer wall of the tee joint body opposite to the interface two, and one end of the airbag two is fixedly connected to the inlet gas two; the inlet gas three is located at the side of the interface three, and one end of the airbag three is fixedly connected to the inlet gas three.

[0009] A mechanical connection device for fluid transportation in plastic pipes according to the present utility model, the airbag one, the airbag two and the airbag three are all annular, and after the airbag one, the airbag two and the airbag three are inflated, their inner holes are completely blocked.

[0010] A mechanical connection device for fluid transportation in plastic pipes according to the present utility model, the inlet gas one is located at the side of the interface one, and the airbag one is fixedly arranged in a ring inside the interface one; the inlet gas two is located at the side of the interface two, and the airbag two is fixedly arranged in a ring inside the interface two; the inlet gas three is located at the side of the interface three, and the airbag three is fixedly arranged in a ring inside the interface three.

[0011] A mechanical connection device for fluid transportation in plastic pipes according to the present utility model, the airbag one, the airbag two and the airbag three are all made of neoprene.

[0012] The present utility model provides a mechanical connection device for fluid transportation in plastic pipes, and its beneficial effects are as follows: by injecting compressed gas into the interface one, the airbag one gradually expands, so as to adjust the flow rate of the liquid flowing through the interface one, and the same applies to the airbag two and the airbag three; and the structure of the present utility model is simple and directly driven by compressed gas, so a large number of metal parts and electronic components do not need to be used, and there will be no situations such as short circuits of electronic components or difficult rotation of rusty valves in the peat environment. Brief Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present utility model;

[0014] Figure 2 is the normal use schematic diagram of Embodiment 1 of the present utility model;

[0015] Figure 3 is the schematic diagram when the airbag one expands in Embodiment 1 of the present utility model;

[0016] Figure 4 is the schematic diagram when the airbag two expands in Embodiment 1 of the present utility model;

[0017] Figure 5 is the schematic diagram when the airbag three expands in Embodiment 1 of the present utility model;

[0018] Figure 6 It is a schematic diagram of the normal use of Embodiment 2 of the present utility model;

[0019] Figure 7 It is a schematic diagram when the first airbag expands in Embodiment 2 of the present utility model;

[0020] Figure 8 It is a schematic diagram when the second airbag expands in Embodiment 2 of the present utility model;

[0021] Figure 9 It is a schematic diagram when the third airbag expands in Embodiment 2 of the present utility model;

[0022] In the figure, 1 is the tee joint body, 11 is the first interface, 12 is the second interface, 13 is the third interface, 14 is the first air inlet, 15 is the second air inlet, 16 is the third air inlet, 17 is the first airbag, 18 is the second airbag, and 19 is the third airbag. Detailed implementation manners

[0023] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0025] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] See Figures 1 to 9, the present utility model provides a mechanical connection device for fluid transportation of plastic pipelines, including a tee joint body. The three interfaces of the tee joint body are interface one 11, interface two 12, and interface three 13 respectively. Among them, an air inlet one 14, an air inlet two 15, and an air inlet three 16 are connected to the outer sidewall of the tee joint body. Inside the tee joint body, an airbag one 17 for closing interface one 11, an airbag two 18 for closing interface two 12, and an airbag three 19 for closing interface three 13 are provided. And air inlet one 14 is communicated with airbag one 17, air inlet two 15 is communicated with airbag two 18, and air inlet three 16 is communicated with airbag three 19. Thus, by injecting compressed gas into interface one 11, airbag one 17 gradually expands, thereby adjusting the flow rate of the liquid flowing through interface one 11. The same applies to airbag two 18 and airbag three 19. And because the structure of the present utility model is simple and directly driven by compressed gas, a large number of metal parts and electronic components do not need to be used, and there will be no situations such as short - circuit of electronic components or difficult rotation of rusted valves in the peat environment.

[0027] See Figures 1 to 5 , the present utility model hereby proposes an embodiment 1. In this embodiment 1, after the compressed gas enters airbag one 17, it gradually fills airbag one 17, making the fluid - flowing area of interface one 11 gradually decrease, thereby adjusting the flow rate of the liquid flowing through interface one 11. When airbag one 17 is fully inflated, airbag one 17 presents a disc shape and closely adheres to the inside of interface one 11, thereby completely blocking interface one 11 to achieve the interception effect.

[0028] Furthermore, after the compressed gas enters airbag two 18, it gradually fills airbag two 18, making the fluid - flowing area of interface two 12 gradually decrease, thereby adjusting the flow rate of the liquid flowing through interface two 12. When airbag two 18 is fully inflated, at this time airbag two 18 expands into a cylinder shape, and the length of airbag two 18 is greater than the inner diameter of interface two 12, thereby completely covering the sidewall of interface two 12 to achieve the interception effect.

[0029] Furthermore, after the compressed gas enters airbag three 19, it gradually fills airbag three 19, making the fluid - flowing area of interface three 13 gradually decrease, thereby adjusting the flow rate of the liquid flowing through interface three 13. When airbag three 19 is fully inflated, airbag three 19 presents a disc shape and closely adheres to the inside of interface three 13, thereby completely blocking interface three 13 to achieve the interception effect.

[0030] See Figures 1 to 5, specifically, in Embodiment 1 of the present invention, the inlet gas 1 is located at the side of the interface 11, and one end of the airbag 17 is fixedly connected to the inlet 14; the inlet 2 15 is located at the outer wall of the tee joint body opposite to the interface 2 12, and one end of the airbag 2 18 is fixedly connected to the inlet 2 15; the inlet gas 3 is located at the side of the interface 3 13, and one end of the airbag 3 19 is fixedly connected to the inlet 3 16.

[0031] See Figures 6 to 9 , the present invention hereby proposes a new Embodiment 2. In Embodiment 2, the airbags 17, 18, and 19 are all annular; when compressed gas enters the airbag 17, the airbag 17 is gradually filled, so that the flow area that the interface 11 can pass through gradually decreases, thereby adjusting the flow rate of the liquid when passing through the interface 11; and when the airbag 17 is fully inflated, the airbag 17 completely blocks its inner hole, thereby achieving the interception effect; the airbag 2 18 and the airbag 3 19 are the same.

[0032] See Figures 6 to 9 , specifically, in Embodiment 2, the inlet gas 1 is located at the side of the interface 11, and the airbag 17 is fixedly arranged in a ring inside the interface 11; the inlet gas 2 is located at the side of the interface 2 12, and the airbag 2 18 is fixedly arranged in a ring inside the interface 2 12; the inlet gas 3 is located at the side of the interface 3 13, and the airbag 3 19 is fixedly arranged in a ring inside the interface 3 13.

[0033] Preferably, the airbags 17, 18, and 19 in the present invention are all made of neoprene, with good weather resistance and aging resistance, and are suitable for outdoor or scenarios where it is not convenient to replace.

[0034] In summary, the present invention provides a mechanical connection device for fluid transportation of plastic pipes. By injecting compressed gas into the interface 1, the airbag 1 gradually expands, thereby adjusting the flow rate of the liquid when passing through the interface 1. The same applies to the airbag 2 and the airbag 3; and the structure of the present invention is simple and directly driven by compressed gas, so a large number of metal parts and electronic components are not required, and there will be no situations such as short - circuit of electronic components or difficult rotation of valve rust in the peat environment.

[0035] Of course, the present invention can also have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present invention.

Claims

1. A mechanical connection device for plastic pipe fluid transportation, characterized in that: It includes a three-way joint body, the three interfaces of the three-way joint body are interface one, interface two and interface three respectively; the outer wall of the three-way joint body is connected with air inlet one, air inlet two and air inlet three; the interior of the three-way joint body is provided with airbag one for closing interface one, airbag two for closing interface two and airbag three for closing interface three; and the air inlet one is connected with airbag one, the air inlet two is connected with airbag two, and the air inlet three is connected with airbag three.

2. The mechanical connection device for plastic pipe fluid transportation according to claim 1, characterized in that: After inflating, the airbag one is in the shape of a pancake and fits tightly with the interior of the interface one; after inflating, the airbag two is in the shape of a cylinder, and the length of the airbag two after inflating is greater than the inner diameter of the interface two; after inflating, the airbag three is in the shape of a pancake and fits tightly with the interior of the interface three.

3. The mechanical connection device for plastic pipe fluid transportation according to claim 2, characterized in that: The air inlet one is located on the side of the interface one, and one end of the airbag one is fixedly connected to the air inlet one; the air inlet two is located on the outer wall of the three-way joint body opposite to the interface two, and one end of the airbag two is fixedly connected to the air inlet two; the air inlet three is located on the side of the interface three, and one end of the airbag three is fixedly connected to the air inlet three.

4. The mechanical connection device for plastic pipe fluid transportation according to claim 1, characterized in that: The airbag one, airbag two and airbag three are all annular, and their inner holes are completely blocked after being expanded.

5. The mechanical connection device for plastic pipe fluid transportation according to claim 1, characterized in that: The air inlet one is located on the side of interface one, and the airbag one fixing ring is arranged inside interface one; the air inlet two is located on the side of interface two, and the airbag two fixing ring is arranged inside interface two; the air inlet three is located on the side of interface three, and the airbag three fixing ring is arranged inside interface three.

6. The mechanical connection device for plastic pipe fluid transportation according to claim 1, characterized in that: The airbag 1, airbag 2 and airbag 3 are all made of neoprene.

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