Steel-plastic conversion elbow pipe of fuel gas introduction pipe

Abstract

The utility model relates to the field of fuel gas introduction pipes, in particular to a steel-plastic conversion elbow of a fuel gas introduction pipe, which comprises a fuel gas steel-plastic conversion elbow main body, a main body for mounting the fuel gas introduction pipe, a first flange and a connecting pipe arranged outside the fuel gas steel-plastic conversion elbow main body and used for connecting and mounting a first elbow. The steel-plastic conversion elbow pipe is provided with the flexible corrugated elbow pipe, the first outer fixing disc, the movable groove, the movable rotating shaft, the telescopic rod, the fixing knob and the second outer fixing disc, when the steel-plastic conversion elbow pipe of the gas inlet pipe is used, due to the limitation of the actual installation environment and the space layout, the telescopic rod can be loosened by twisting the fixing knob, and therefore the gas inlet pipe can be used conveniently. The positions of the two ends of the flexible corrugated elbow pipe are swung, so that the orientation angles of the first elbow connecting pipe and the second elbow connecting pipe are adjusted, after adjustment is completed, the fixing rotary knob is screwed, the length of the telescopic rod is determined, the flexible corrugated elbow pipe can be kept at the current position, and the purpose of adjusting the bending angle is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas introduction pipe field, concretely relates to a kind of steel plastic conversion elbow pipe of gas introduction pipe. BACKGROUND

[0002] Gas introduction pipe refers to the safe, stable gas from municipal gas pipeline introduction user indoor or building interior a kind of pipe system, it is the important bridge of connecting municipal gas pipeline and indoor gas system, steel plastic conversion elbow pipe of gas introduction pipe is an important connecting component in gas pipeline system, it is mainly used to connect gas steel pipe and plastic pipe, realizes the conversion between different material pipe, steel plastic conversion elbow pipe is a kind of specially designed pipe connecting piece, it combines the strength of steel pipe and plastic pipe's corrosion resistance, easy installation and other advantages, by specific connecting mode, connect two together, and provide bending function when needed to adapt to different installation environment.

[0003] The steel plastic conversion elbow pipe of existing gas introduction pipe lacks bending angle adjusting function in the process of use, due to the different actual installation environment and space layout of installing the steel plastic conversion elbow pipe of gas introduction pipe, it can cause installation position to be limited in installation process, increase the difficulty and complexity of installation, the angle of elbow pipe is too large or too small, it also can affect the flow velocity of gas in pipeline, cause gas pressure loss to increase, influence gas supply efficiency, and it is difficult to adjust bending angle when installing, once pipeline system appears problem and needs to be repaired or replace elbow pipe, it needs more time and resource to maintain.

[0004] Therefore, it is necessary to invent a kind of steel plastic conversion elbow pipe of gas introduction pipe to solve the above problems. CONTENT OF UTILITY MODEL

[0005] The utility model discloses a steel plastic conversion elbow pipe of gas introduction pipe, through flexible bellows elbow pipe, first outer fixed disc, movable slot, movable pivot, telescopic link, fixed knob and second outer fixed disc realize the steel plastic conversion elbow pipe of gas introduction pipe with the bending adjustment function can adjust the bending angle easily, satisfy complex installation demand, improve construction efficiency, can better adapt the overall layout of pipeline system, reduce the stress concentration and leakage risk caused by improper installation, and the steel plastic conversion elbow pipe with the bending adjustment function can also satisfy the design requirement more flexibly, make the pipeline layout more compact, reasonable, reduce unnecessary pipeline length and elbow quantity, thereby guarantee the flow velocity of gas in the pipeline, reduce gas pressure loss, improve the effect of gas supply efficiency, to solve the steel plastic conversion elbow pipe of gas introduction pipe in the prior art in the use process, because the actual installation environment and space layout of the steel plastic conversion elbow pipe of gas introduction pipe are different, the steel plastic conversion elbow pipe of gas introduction pipe lacking the bending angle adjustment function will cause the installation position to be limited in the installation process, increase the difficulty and complexity of installation, and too large or too small angle of the elbow pipe will also affect the flow velocity of gas in the pipeline, cause gas pressure loss to increase, influence gas supply efficiency, and it is difficult to adjust the bending angle when installing, once the pipeline system has a problem and needs to be repaired or replaced elbow pipe, more time and resources are needed for maintenance.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a steel plastic conversion elbow pipe of gas introduction pipe, including gas steel plastic conversion elbow pipe main part, for carrying out gas introduction pipe installation main part;

[0007] First flange, set up in the outside of gas steel plastic conversion elbow pipe main part, for connecting and installing first elbow connecting pipe, and the inside of first flange is provided with the inlay groove, the inside of inlay groove is provided with sealing ring, the outside of first flange is penetrated and is provided with stud bolt, one end of stud bolt is movably connected with second flange, and the inside of second flange is fixedly installed with first elbow connecting pipe;

[0008] Flexible bellows elbow pipe, set up in one end of first elbow connecting pipe, for adjusting installation angle, and the outside of flexible bellows elbow pipe is provided with first outer fixed disc, the inside of first outer fixed disc is provided with movable slot, the inside of movable slot is movably connected with movable pivot, the outside of movable pivot is fixedly installed with telescopic link, the outside of telescopic link is penetrated and is provided with fixed knob, one end of telescopic link is provided with second outer fixed disc, the other end of flexible bellows elbow pipe is fixedly installed with second elbow connecting pipe, and one end of second elbow connecting pipe is movably connected with gas steel plastic conversion elbow pipe auxiliary pipe.

[0009] Preferably, the first elbow connecting pipe is threadedly connected with the gas steel-plastic conversion elbow pipe body, and the first flange is movably connected with the sealing ring.

[0010] Preferably, the telescopic rod is movably connected with the first outer fixing disc, and the second outer fixing disc is fixedly connected with the flexible corrugated elbow pipe.

[0011] Preferably, the inner reinforcing layer is internally arranged in the gas steel-plastic conversion elbow pipe auxiliary connecting pipe, the reinforcing steel bars are fixedly arranged outside the inner reinforcing layer, and the corrosion-resistant coating is pasted inside the inner reinforcing layer.

[0012] Preferably, the number of the reinforcing steel bars is multiple, and the reinforcing steel bars are equidistantly distributed on the inner reinforcing layer.

[0013] Preferably, the corrosion-resistant coating is tightly attached to the inner reinforcing layer, and the material of the corrosion-resistant coating is polyethylene.

[0014] In the above technical solution, the technical effects and advantages of the utility model are provided.

[0015] The utility model discloses a flexible corrugated elbow pipe, a first outer fixing disc, a movable groove, a movable rotating shaft, a telescopic rod, a fixed knob and a second outer fixing disc, when using the steel-plastic conversion elbow pipe of the gas introduction pipe, because of the restriction of actual installation environment and space layout, can through the twist fixed knob loosens telescopic rod, swings the position of the both ends of flexible corrugated elbow pipe to adjust the orientation angle of the first elbow connecting pipe and the second elbow connecting pipe, and after adjusting, tightens the fixed knob, determines the length of telescopic rod, can make flexible corrugated elbow pipe keep the current position, completes the purpose of bending angle adjustment, so cooperate and use the steel-plastic conversion elbow pipe of the gas introduction pipe with the bending adjustment function can adjust the bending angle easily, satisfies the complex installation demand, improves the construction efficiency, can better adapt to the overall layout of the pipeline system, reduces the stress concentration and leakage risk caused by improper installation, and the steel-plastic conversion elbow pipe with the bending adjustment function can also more flexibly satisfy the design demand, make the pipeline layout more compact and reasonable, reduce unnecessary pipeline length and elbow number, thereby guaranteeing the flow speed of gas in the pipeline, reducing gas pressure loss, and improving gas supply efficiency.

[0016] The utility model discloses a gas steel plastic conversion elbow pipe main part, gas steel plastic conversion elbow pipe vice connecting pipe, inner reinforcing layer, reinforcing steel bar and corrosion -resistant coating are provided, when using the steel plastic conversion elbow pipe of gas introduction pipe, the inside of gas steel plastic conversion elbow pipe main part and gas steel plastic conversion elbow pipe vice connecting pipe that the gas steel plastic conversion elbow pipe of connecting with external pipeline is provided with inner reinforcing layer, and the structure intensity of gas steel plastic conversion elbow pipe main part and gas steel plastic conversion elbow pipe vice connecting pipe is enhanced by reinforcing steel bar and inner reinforcing layer itself together, can bear greater internal pressure and external force, improve overall stability and security, and the inside of inner reinforcing layer still pasted corrosion -resistant coating, so that the steel plastic conversion elbow pipe of gas introduction pipe enhances the anticorrosive capacity, effectively insulates the direct contact of pipeline inner wall and outside corrosive medium, thereby greatly reduce the risk of pipeline corrosion, prolong the service life of the steel plastic conversion elbow pipe of gas introduction pipe. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 It is the overall structure schematic diagram of the utility model;

[0019] Figure 2 It is the second flange structure schematic diagram of the utility model;

[0020] Figure 3 It is the flexible corrugated elbow pipe structure schematic diagram of the utility model;

[0021] Figure 4 It is the telescopic rod structure schematic diagram of the utility model;

[0022] Figure 5 It is the gas steel plastic conversion elbow pipe vice connecting pipe structure schematic diagram of the utility model.

[0023] Mark explanation:

[0024] 1, gas steel plastic conversion elbow pipe main part;2, first flange;3, inlay groove;4, sealing ring;5, stud bolt;6, second flange;7, first elbow connecting pipe;8, flexible corrugated elbow pipe;9, first outer fixed disc;10, movable groove;11, movable rotating shaft;12, telescopic rod;13, fixed knob;14, second outer fixed disc;15, second elbow connecting pipe;16, gas steel plastic conversion elbow pipe vice connecting pipe;17, inner reinforcing layer;18, reinforcing steel bar;19, corrosion -resistant coating. DETAILED DESCRIPTION

[0025] In order to make the technical scheme of the utility model better understood by the skilled in the art, the utility model will be further described in detail below in conjunction with the drawings.

[0026] The utility model provides a kind of steel plastic conversion elbow pipe of gas introduction pipe as Figures 1-5 As shown in a kind of steel plastic conversion elbow pipe of gas introduction pipe, including gas steel plastic conversion elbow pipe main body 1, for carrying out the main body of gas introduction pipe installation;

[0027] First flange 2, it is arranged at the outside of gas steel plastic conversion elbow pipe main body 1, for connecting installation first elbow connecting pipe 7, and the inside of first flange 2 is provided with inner embedding groove 3, and the inside of inner embedding groove 3 is provided with sealing ring 4, and the outside of first flange 2 is penetrated by stud bolt 5, and one end of stud bolt 5 is movably connected with second flange 6, and the inside of second flange 6 is fixedly installed with first elbow connecting pipe 7;

[0028] Flexible corrugated elbow pipe 8, it is arranged at one end of first elbow connecting pipe 7, for adjusting installation angle, and the outside of flexible corrugated elbow pipe 8 is provided with first outer fixed disc 9, and the inside of first outer fixed disc 9 is provided with movable slot 10, and movable slot 10 is movably connected with movable shaft 11, and the outside of movable shaft 11 is fixedly installed with telescopic rod 12, and the outside of telescopic rod 12 is penetrated by fixed knob 13, and one end of telescopic rod 12 is provided with second outer fixed disc 14, and the other end of flexible corrugated elbow pipe 8 is fixedly installed with second elbow connecting pipe 15, and one end of second elbow connecting pipe 15 is movably connected with gas steel plastic conversion elbow pipe sub-pipe 16, can be loosened telescopic rod 12 by twisting fixed knob 13, swing the position of both ends of flexible corrugated elbow pipe 8, to adjust the orientation angle of first elbow connecting pipe 7 and second elbow connecting pipe 15, after adjusting, tighten fixed knob 13, determine the length of telescopic rod 12, i.e. flexible corrugated elbow pipe 8 can keep current position, complete the purpose of bending angle adjustment.

[0029] As shown in Figure 1 、 Figure 2 、 Figure 3 And Figure 4 First elbow connecting pipe 7 is threadedly connected with gas steel plastic conversion elbow pipe main body 1, first flange 2 is movably connected with sealing ring 4, sealing ring 4 is arranged at the connecting place of first elbow connecting pipe 7 and gas steel plastic conversion elbow pipe main body 1, increase its own sealing property, reduce the probability of leakage when gas delivery, telescopic rod 12 is movably connected with first outer fixed disc 9, and second outer fixed disc 14 is fixedly connected with flexible corrugated elbow pipe 8, can be controlled the angle size of both ends of flexible corrugated elbow pipe 8 by adjusting the length of telescopic rod 12.

[0030] As shown in Figure 1 And Figure 5As shown, the inside of the gas steel-plastic conversion elbow auxiliary pipe 16 is provided with an inner reinforcing layer 17, the outer part of the inner reinforcing layer 17 is fixedly installed with a reinforcing steel bar 18, and the inside of the inner reinforcing layer 17 is pasted with a corrosion-resistant coating 19. The gas steel-plastic conversion elbow main body 1 connected with the outer pipeline and the inside of the gas steel-plastic conversion elbow auxiliary pipe 16 are both provided with an inner reinforcing layer 17. The reinforcing steel bar 18 of the inner reinforcing layer 17 and the inner reinforcing layer 17 itself together enhance the structural strength of the gas steel-plastic conversion elbow main body 1 and the gas steel-plastic conversion elbow auxiliary pipe 16, so that they can withstand greater internal pressure and external force, improve overall stability and safety. The number of reinforcing steel bars 18 is set to be multiple, and the multiple reinforcing steel bars 18 are equally spaced on the inner reinforcing layer 17. The structure of the inner reinforcing layer 17 and the reinforcing steel bar 18 is simple and easy to operate, and if a fault occurs, the inner reinforcing layer 17 can be easily repaired or replaced. The corrosion-resistant coating 19 is tightly attached to the inner reinforcing layer 17, and the material of the corrosion-resistant coating 19 is polyethylene. The inside of the inner reinforcing layer 17 is also pasted with a corrosion-resistant coating 19, which enhances the corrosion resistance of the steel-plastic conversion elbow of the gas inlet pipe, effectively isolates the direct contact between the inner wall of the pipeline and the external corrosion medium, thereby greatly reducing the risk of pipeline corrosion and prolonging the service life of the steel-plastic conversion elbow of the gas inlet pipe.

[0031] The working principle of this practical system is as follows: First, at the location where the gas inlet pipe needs to be installed, remove the gas inlet pipe's steel-plastic conversion bend. Then, based on the actual installation environment and space constraints, connect the main body 1 of the gas steel-plastic conversion bend and the auxiliary connecting pipe 16 to both ends of the external pipeline. Next, at the bend connection, install the first bend connecting pipe 7, the flexible corrugated bend pipe 8, and the second bend connecting pipe 15 through the first flange 2. Because the sealing ring 4 is located at the connection between the first bend connecting pipe 7 and the main body 1 of the gas steel-plastic conversion bend, it increases its own... To ensure airtightness and reduce the probability of gas leakage during transmission, the flexible corrugated elbow 8 is swung by turning the fixing knob 13 to loosen the telescopic rod 12 and adjust its position. This allows the first elbow connecting pipe 7 and the second elbow connecting pipe 15 to be aligned. After adjustment, the fixing knob 13 is tightened to ensure the telescopic rod 12 is at its correct length, thus maintaining the flexible corrugated elbow 8 in its current position and achieving the desired bending angle adjustment. This allows the steel-plastic conversion elbow of the gas inlet pipe with bending adjustment function to easily adjust its bending angle, meeting complex installation requirements, improving construction efficiency, and providing more... To better adapt to the overall layout of the pipeline system and reduce the risk of stress concentration and leakage due to improper installation, when gas is normally transported through the steel-plastic conversion bend of the gas inlet pipe, both the main body 1 and the auxiliary connecting pipe 16 of the gas steel-plastic conversion bend connected to the external pipeline are equipped with an internal reinforcement layer 17. The reinforcing steel bars 18 of the internal reinforcement layer 17 and the internal reinforcement layer 17 itself together enhance the structural strength of the main body 1 and the auxiliary connecting pipe 16 of the gas steel-plastic conversion bend, enabling them to withstand greater internal pressure and external forces, improving overall stability and safety. The inner reinforcement layer 17 is also covered with a corrosion-resistant coating 19, which enhances the corrosion resistance of the steel-plastic conversion bend of the gas inlet pipe. This effectively isolates the inner wall of the pipe from direct contact with external corrosive media, thereby greatly reducing the risk of pipe corrosion and extending the service life of the steel-plastic conversion bend of the gas inlet pipe. After completing the installation and use of the steel-plastic conversion bend of the gas inlet pipe according to the above operations, routine maintenance of the device is required. The material of the corrosion-resistant coating 19 is polyethylene. Thus, the use of the steel-plastic conversion bend of the gas inlet pipe is completed.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A steel-to-plastic transition bend for a gas inlet pipe, characterized in that: Comprising The main body (1) of the gas steel-plastic conversion elbow is used for installing the main body of the gas introduction pipe; The first flange (2) is arranged outside the main body (1) of the gas steel-plastic conversion elbow, which is used for connecting and installing the first elbow connecting pipe (7), and an inner embedding groove (3) is arranged inside the first flange (2), a sealing ring (4) is arranged inside the inner embedding groove (3), a double-headed bolt (5) penetrates through the outside of the first flange (2), one end of the double-headed bolt (5) is movably connected with a second flange (6), and the first elbow connecting pipe (7) is fixedly installed inside the second flange (6); The flexible corrugated elbow pipe (8) is arranged at one end of the first elbow connecting pipe (7) and is used for adjusting the installation angle, a first outer fixing disc (9) is arranged outside the flexible corrugated elbow pipe (8), a movable groove (10) is arranged inside the first outer fixing disc (9), a movable rotating shaft (11) is movably connected inside the movable groove (10), a telescopic rod (12) is fixedly installed outside the movable rotating shaft (11), a fixed knob (13) penetrates through the outside of the telescopic rod (12), a second outer fixing disc (14) is arranged at one end of the telescopic rod (12), the flexible corrugated elbow pipe (8) is fixedly installed with a second elbow connecting pipe (15) at the other end, and the second elbow connecting pipe (15) is movably connected with a gas steel-plastic conversion elbow auxiliary connecting pipe (16) at one end.

2. A steel-to-plastic transition bend for a gas inlet pipe according to claim 1, characterized in that: The first elbow connecting pipe (7) is threadedly connected with the main body (1) of the gas steel-plastic conversion elbow, and the first flange (2) is movably connected with the sealing ring (4).

3. A steel-to-plastic transition bend for a gas inlet pipe according to claim 1, characterized in that: The telescopic rod (12) is movably connected with the first outer fixing disc (9), and the second outer fixing disc (14) is fixedly connected with the flexible corrugated elbow pipe (8).

4. A steel-to-plastic transition bend for a gas inlet pipe according to claim 1, characterized in that: The inner reinforcing layer (17) is arranged inside the gas steel-plastic conversion elbow auxiliary connecting pipe (16), the reinforcing steel bars (18) are fixedly installed outside the inner reinforcing layer (17), and the corrosion-resistant coating (19) is attached to the inner reinforcing layer (17).

5. A steel-to-plastic transition bend for a gas inlet pipe according to claim 4, characterized in that: The number of reinforcing steel bars (18) is multiple, and the multiple reinforcing steel bars (18) are distributed at equal intervals on the inner reinforcing layer (17).

6. A steel-to-plastic transition bend for a gas inlet pipe according to claim 4, characterized in that: The corrosion-resistant coating (19) is tightly attached to the inner reinforcing layer (17), and the material of the corrosion-resistant coating (19) is polyethylene.

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