A direction-adjustable high-sealing petroleum and natural gas delivery combined pipe

CN224756557UActive Publication Date: 2026-09-15YANCHANG OIL FIELD
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Patent Information

Application Number
CN202522589385.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-05
Publication Date
2026-09-15
Estimated Expiration
2035-12-05

AI Technical Summary

Technical Problem

[0003]本实用新型的目的在于提供一种方向可调节的高密封性石油天然气输送组合管道,以解决上述背景技术提出的目前市场上的调节结构只能将第二横管以竖管为圆心进行旋转,使得组合管道的方向调节范围较小,局限性较大,因此不能满足不同的使用需求的问题

Benefits of technology

[0022]与现有技术相比,本实用新型的有益效果是:该方向可调节的高密封性天然气输送组合管道,可可多方位的进行方向调节,提高了方向调节的范围,因此可满足不同的使用需求,其具体内容如下:

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Abstract

The utility model discloses a direction adjustable high sealing property petroleum and natural gas conveying combined pipeline, including connection main pipe and two group sealing flange plate subassembly, the left side of connection main pipe is connected with first combined hose through a group sealing flange plate subassembly, the outside of one end of connection branch pipe close to support frame is installed with two groups of clamping seat of equal interval, and is provided with two in each group, the outside of a group sealing flange plate subassembly between connection main pipe and first combined hose is rotatably installed with support frame, the upper surface of support frame is penetrated by the upper surface of upper adjusting lever, and the upper surface outside of upper adjusting lever is provided with locking groove of equal interval, and the right side of upper adjusting lever is provided with locking mechanism, and the inside of one end of adjusting lever close to connection branch pipe is connected with clamping block, this direction adjustable high sealing property natural gas conveying combined pipeline can multidirectional direction adjustment, has improved the range of direction adjustment, can satisfy different use demand therefore.
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Description

Technical Field

[0001] This utility model relates to the field of combined pipeline technology, specifically a high-sealing combined pipeline for transporting oil and natural gas with adjustable direction. Background Technology

[0002] Natural gas can be widely used as fuel for home heating and cooking. When using natural gas, it needs to be transported over long distances through a combination pipeline, and the combination pipeline also needs to have high sealing performance in order to transport and use natural gas effectively. The prior art patent application number "CN202010423392.8" discloses a "Natural Gas Pipeline with Flexible Structure and Easy Direction Adjustment," which discloses that the other end of the U-shaped pipe is connected to the second horizontal pipe through the connecting device. The connecting device includes a protective shell, a telescopic hose, a vertical pipe, a sealing mechanism, and an adjusting mechanism. The upper and lower sides of the protective shell are respectively provided with a first opening and a second opening. The outer periphery of the end of the U-shaped pipe away from the first horizontal pipe is fixed in the first opening. The U-shaped pipe is connected to the second horizontal pipe in sequence through the telescopic hose and the vertical pipe, and the vertical pipe is located inside the second opening. The second horizontal pipe is connected to the protective shell through the adjustment mechanism. During the installation of the natural gas pipeline, the characteristics of the telescopic hose facilitate the adjustment of the second horizontal pipe. The slider and dovetail groove facilitate the rotation of the second horizontal pipe to adjust the gas transmission direction. The screw and sleeve are used to adjust the height of the second horizontal pipe. After the second horizontal pipe is adjusted, the sealing ring is moved upward and inserted into the second opening. The position of the sealing ring is fixed by the fixing component, thereby sealing the protective shell and isolating and protecting the telescopic hose inside, thus ensuring the smooth transmission of natural gas and improving the practicality of the equipment. Although the existing natural gas transmission combined pipeline can easily rotate the second horizontal pipe by sliding the slider in the dovetail groove to adjust the gas transmission direction, the adjustment structure can only rotate the second horizontal pipe with the vertical pipe as the center, which makes the direction adjustment range of the combined pipeline small and has great limitations, and therefore cannot meet different usage needs. Therefore, we propose a directional adjustable, highly sealed combined pipeline for oil and gas transportation to address the problems mentioned above. Utility Model Content

[0003] The purpose of this utility model is to provide a high-sealing oil and gas transportation combined pipeline with adjustable direction, in order to solve the problem mentioned in the background art that the current adjustment structure on the market can only rotate the second horizontal pipe with the vertical pipe as the center, which makes the direction adjustment range of the combined pipeline small and has great limitations, and therefore cannot meet different usage needs.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-sealing oil and gas transmission combined pipeline with adjustable direction, including a connecting main pipe and two sets of sealing flange assemblies, wherein the left side of the connecting main pipe is connected to a first combined hose through a set of sealing flange assemblies; The left side of the first combined hose is connected to the connecting secondary pipe via another set of sealing flange assemblies; Two sets of snap-fit ​​seats are installed at equal intervals on the outer side of the end of the connecting sub-tube near the support frame, with two seats in each set. A support frame is rotatably mounted on the outside of a set of sealing flange assemblies between the main connecting pipe and the first combined hose. Adjusting rods are installed inside the upper and lower sides of the left side of the support frame. The upper adjusting rod passes through the upper surface of the support frame. Locking grooves are evenly spaced on the outer side of the upper surface of the upper adjusting rod. A locking mechanism is provided on the right side of the upper adjusting rod. The end of the adjusting rod near the connecting secondary tube has a locking block inside.

[0005] Preferably, the right end of the support frame is arranged in a circular shape, and the left end of the support frame is arranged in a "U" shape, with the inner diameter of the left end of the support frame being larger than the inner diameter of the right end of the support frame.

[0006] With the above structural design, the support frame can not only rotate well, but also allow for the proper installation and placement of the adjustment rod.

[0007] Preferably, the locking mechanism includes a support plate mounted on the upper surface of the support frame, and a locking rod is provided through the interior of the support plate, with one end of the locking rod inserted into a locking groove at a corresponding position.

[0008] With the above structure, the locking rod can lock and fix the rotating connecting sub-tube, thereby ensuring the stability of the connecting sub-tube after the direction is adjusted.

[0009] Preferably, an adjustment groove is provided on the rear side of the end of the adjustment rod near the connecting sub-tube, and a protruding rod is provided through the adjustment groove. The front end of the protruding rod is connected to the locking block, and one side of the locking block is connected to the interior of the adjustment rod through a return spring. With the above structure, the locking block can be moved together by manually controlling the protruding rod, thus making it easy to engage or disengage the locking block from the locking seat.

[0010] The end of the snap-fit ​​block furthest from the adjusting rod is inserted into the groove inside the snap-fit ​​seat.

[0011] With the above structural design, the snap-fit ​​block and the snap-fit ​​seat are connected by a concave-convex fit, so that the snap-fit ​​block can drive the snap-fit ​​seat to rotate later.

[0012] Preferably, the slots and locking blocks inside the locking seat are both rectangular in shape.

[0013] With the above structure, the snap-fit ​​block can rotate together with the snap-fit ​​seat when it rotates, which in turn causes the snap-fit ​​seat to rotate together with the connecting secondary pipe. This allows for adjustment of the direction of the connecting secondary pipe, making it easier for the connecting secondary pipe to connect with pipes in different directions to meet different usage requirements.

[0014] Preferably, a connecting spring is installed in the groove opened in the upper adjusting rod, a protrusion is connected above the connecting spring, an adjusting plate is installed above the protrusion, and a limit groove is opened inside the protrusion. A limit post is installed in the groove inside the upper adjusting rod. The limit post is inserted into the limit through groove, and the height of the limit through groove is greater than the diameter of the limit post.

[0015] With the above structure, when the protruding column moves up and down, the limiting column can slide in the limiting groove. Later, the rotation of the protruding column can be driven by the limiting column to rotate the adjusting rod together.

[0016] Preferably, a self-control rod is installed on the outer rear side of the locking rod, and a locking spring is nested on the outer side of the locking rod, with one end of the locking spring connected to the support plate.

[0017] With the above structure, the stored force of the locking spring can automatically drive the locking rod to move in the opposite direction and reset, ensuring that the locking rod can perform the locking operation well.

[0018] Preferably, a vertical rod is installed in the groove on the rear side of the support plate, and an adjustment spring is sleeved on the lower outer side of the vertical rod.

[0019] The above structure allows the stored energy of the adjustment spring to automatically drive the vertical rod to move in the opposite direction and reset.

[0020] Preferably, a self-control plate is provided on the rear side of the support plate, a connecting block is installed on the side of the self-control plate near the support plate, a vertical rod is provided through the inside of the connecting block, and an adjustment spring is installed below the connecting block; The right side of the support plate is inclined, and a self-control rod is attached to the lower right side of the support plate. An adjustment disc is set above the support plate, and the self-control rod forms a sliding structure through the support plate.

[0021] With the above structure, the support plate, which is inclined on the right side, will automatically push the self-control lever outward when it moves downward. This causes the self-control lever to automatically move the locking lever outward, eliminating the need for manual pulling of the locking lever. The operation is convenient, time-saving, and labor-saving.

[0022] Compared with the prior art, the beneficial effects of this utility model are: this directional adjustable, high-sealing natural gas transmission combined pipeline can be adjusted in multiple directions, increasing the range of directional adjustment and thus meeting different usage requirements. Its specific details are as follows: (1) By inserting the snap-fit ​​block into a set of snap-fit ​​seats on the upper and lower surfaces of the connecting secondary pipe, the adjusting disc is rotated and the adjusting rod is rotated together, so that the adjusting rod drives the connecting secondary pipe to rotate back and forth in the horizontal direction. Similarly, by rotating the support frame by 90°, the snap-fit ​​block is inserted into a set of snap-fit ​​seats on the front and rear surfaces of the connecting secondary pipe, so that the adjusting rod drives the connecting secondary pipe to rotate up and down in the vertical direction. Thus, the entire high-sealing natural gas transmission combined pipeline can be adjusted in multiple directions, which improves the range of direction adjustment and can meet different usage requirements. By manually operating the protruding rod, the protruding rod can drive the snap-fit ​​block to rise and fall, so that the snap-fit ​​block can be separated from the snap-fit ​​seat later. (2) The locking rod is slidably connected in the support plate, which makes it easy to insert one end of the locking rod into the corresponding locking groove later, so as to lock the rotating adjustment rod and ensure the stability of the adjustment rod after rotation. (3) Press the adjustment plate down and then rotate it so that the downward-moving adjustment plate applies a downward thrust to the control plate. Then the inclined surface of the control plate will push the control lever outward, so that the control lever drives the locking lever outward. The lock can be released without the need for the staff to manually pull the locking lever outward. Attached Figure Description

[0023] Figure 1 This is a left-side stereoscopic structural diagram of the present invention; Figure 2 This is a right-view three-dimensional structural diagram of the present invention; Figure 3 This is a schematic cross-sectional view of the support frame structure of this utility model; Figure 4 This is a cross-sectional view of the adjusting rod of this utility model; Figure 5 This is a schematic diagram of the rear view of the adjusting rod structure of this utility model; Figure 6 This is a schematic diagram of the separation structure of the adjusting rod and the locking block of this utility model; Figure 7 This is a cross-sectional view of the connection between the adjusting rod and the adjusting disc of this utility model; Figure 8 This is a schematic diagram of the rear view of the self-control board of this utility model; Figure 9 This is a schematic cross-sectional view of the support plate of this utility model; Figure 10This is a schematic diagram of the three-dimensional structure of the support frame of this utility model after rotation.

[0024] In the diagram: 1. Main connecting pipe; 2. First combined hose; 3. Secondary connecting pipe; 31. Snap-fit ​​seat; 4. Support frame; 5. Adjusting rod; 51. Limiting post; 52. Adjusting groove; 53. Locking groove; 6. Adjusting disc; 61. Protruding post; 62. Limiting through groove; 63. Connecting spring; 7. Sealing flange assembly; 8. Snap-fit ​​block; 81. Return spring; 82. Protruding rod; 9. Support plate; 91. Vertical rod; 92. Adjusting spring; 10. Locking rod; 11. Locking spring; 12. Automatic control plate; 121. Connecting block; 13. Automatic control rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-10 The present invention provides the following technical solution: Example 1: The adjustable-direction, high-sealing natural gas transmission pipeline in this example allows for multi-directional directional adjustment according to different usage requirements, thereby improving the overall practicality of the pipeline. See attached diagram for the specific structure. Figures 1-7 and appendix Figure 10 As shown, it includes a connecting main pipe 1 and two sets of sealing flange assemblies 7. The left side of the connecting main pipe 1 is connected to the first combined hose 2 through a set of sealing flange assemblies 7; the left side of the first combined hose 2 is connected to the connecting secondary pipe 3 through another set of sealing flange assemblies 7; two sets of snap-fit ​​seats 31 are installed at equal intervals on the outer side of the connecting secondary pipe 3 near the support frame 4, with two seats in each set; the support frame 4 is rotatably installed on the outer side of a set of sealing flange assemblies 7 between the connecting main pipe 1 and the first combined hose 2; adjusting rods 5 are installed inside the upper and lower sides of the left side of the support frame 4; the upper adjusting rod 5 penetrates the upper surface of the support frame 4; locking grooves 53 are opened at equal intervals on the outer side of the upper surface of the upper adjusting rod 5; a locking mechanism is provided on the right side of the upper adjusting rod 5; and a snap-fit ​​block 8 is connected inside the end of the adjusting rod 5 near the connecting secondary pipe 3.

[0027] The right end of the support frame 4 is ring-shaped, and the left end is U-shaped. The inner diameter of the left end of the support frame 4 is larger than that of the right end. The locking mechanism includes a support plate 9 mounted on the upper surface of the support frame 4. A locking rod 10 is inserted through the inside of the support plate 9. One end of the locking rod 10 is inserted into the corresponding locking groove 53. An adjustment groove 52 is provided on the rear side of the end of the adjusting rod 5 near the connecting secondary tube 3. A protruding rod 82 is inserted through the adjustment groove 52. The front end of the protruding rod 82 is connected to the locking block 8. One side of the locking block 8 is connected by a return spring. 81 is connected to the inside of the adjusting rod 5. The end of the locking block 8 away from the adjusting rod 5 is inserted into the groove inside the locking seat 31. Both the groove inside the locking seat 31 and the locking block 8 are rectangular. A connecting spring 63 is installed in the groove opened in the upper adjusting rod 5. A protruding post 61 is connected above the connecting spring 63. An adjusting plate 6 is installed above the protruding post 61. A limiting groove 62 is opened inside the protruding post 61. A limiting post 51 is installed in the groove inside the upper adjusting rod 5. The limiting post 51 is inserted into the limiting groove 62. The height of the limiting groove 62 is greater than the diameter of the limiting post 51.

[0028] Move the entire high-sealing natural gas transmission pipeline, consisting of the main connecting pipe 1, the first combined hose 2, and the connecting secondary pipe 3, into the working area. The entire high-sealing natural gas transmission pipeline is then ready for use. When it is necessary to adjust the horizontal direction of the connecting secondary pipe 3 by rotating it forward and backward, first manually pull the locking rod 10 outward, causing one end of the locking rod 10 to separate from the corresponding locking groove 53. At this time, the locking spring 11 is compressed and stored. Then, manually rotate the adjusting disc 6, which in turn causes the protruding post 61 to rotate. Since the limiting post 51 is inserted into the limiting through groove 62, the protruding post 61 causes the adjusting rod 5 to rotate as well. The adjusting rod 5 drives the lower locking block 8 and locking seat 31 to rotate. At this time, the connecting sub-pipe 3 rotates horizontally back and forth around the adjusting rod 5. The connecting sub-pipe 3 can be rotated well through the first combined hose 2. When the connecting sub-pipe 3 is rotated to the appropriate direction, the rotation of the adjusting plate 6 is stopped, and then the locking rod 10 is released. At this time, the locking spring 11 automatically drives the locking rod 10 to move in the opposite direction and reset, so that one end of the locking rod 10 is inserted into the corresponding locking groove 53, thus locking the adjusted rod 5 after rotation, thereby locking the position of the connected sub-pipe 3 after rotation. Then the connecting sub-pipe 3 can be connected to the external pipeline for use.

[0029] When vertical adjustment of the connecting secondary tube 3 is required, first manually push the protruding rod 82 into the adjusting groove 52. The protruding rod 82 then moves the locking block 8, causing it to separate from the corresponding locking seat 31. At this point, the return spring 81 is compressed and stored. Then, manually rotate the support frame 4 90°. The locking block 8 then aligns with the locking seats 31 on the front and rear sides of the connecting secondary tube 3. The stored force of the return spring 81 then automatically moves the locking block 8 in the opposite direction, inserting it into the locking seats 31 on the front and rear sides of the connecting secondary tube 3. As shown above, similarly, first manually pull the locking rod 10 outward to separate the locking rod 10 from the corresponding locking groove 53. Then, as shown above, manually rotate the adjusting disc 6, and then the connecting secondary pipe 3 rotates up and down in the vertical direction with the adjusting rod 5 as the center. Therefore, different directional adjustment requirements can be met. Then the entire high-sealing natural gas transmission combination pipeline can be used to transport natural gas. During transportation, the connecting main pipe 1, the first combination hose 2 and the connecting secondary pipe 3 are connected by the sealing flange assembly 7 to ensure high sealing and prevent natural gas leakage.

[0030] Example 2: The adjustable-direction, high-sealing natural gas transmission pipeline in this example eliminates the need for manual pulling of the locking rod 10 during use, making the entire structure convenient to operate and use. See attached diagram for details. Figures 7-9 As shown, a self-control lever 13 is installed on the outer rear side of the locking lever 10. A locking spring 11 is nested and connected to the outer side of the locking lever 10. One end of the locking spring 11 is connected to the support plate 9. A vertical rod 91 is installed in the groove opened on the rear side of the support plate 9. An adjusting spring 92 is sleeved on the lower outer side of the vertical rod 91. A self-control plate 12 is provided on the rear side of the support plate 9. A connecting block 121 is installed on the side of the self-control plate 12 close to the support plate 9. The vertical rod 91 is inserted through the interior of the connecting block 121. An adjusting spring 92 is installed below the connecting block 121. The right side of the support plate 9 is inclined. The self-control lever 13 is attached to the lower right side of the support plate 9. An adjusting plate 6 is provided on the upper side of the support plate 9. The self-control lever 13 forms a sliding structure through the support plate 9.

[0031] Based on Embodiment 1, when it is necessary to rotate the adjusting disc 6 and the adjusting rod 5, the adjusting disc 6 is first manually pressed down before rotation. When the adjusting disc 6 is manually pressed down, the adjusting disc 6 drives the protrusion 61 to move downward inside the adjusting rod 5. At this time, the limiting post 51 slides in the limiting groove 62, and the protrusion 61 squeezes the connecting spring 63 inside the adjusting rod 5, causing the connecting spring 63 to store force. At the same time, when the adjusting disc 6 moves downward, it pushes the self-control plate 12 downward. Then, the connecting block 121 on the side of the self-control plate 12 slides downward outside the vertical rod 91 inside the support plate 9. At this time, the adjusting spring 92 is squeezed and stored. Then the self-control plate 12 moves downward. The inclined surface on the side of the square will apply an outward pushing force to the self-control lever 13. At this time, the self-control lever 13 drives the locking lever 10 to move outward, so that the locking lever 10 automatically moves outward and separates from the locking groove 53. Then the adjustment plate 6 can drive the adjustment lever 5 to rotate. After the rotation is completed, the adjustment plate 6 is released. At this time, the stored force of the connecting spring 63 will automatically drive the protrusion 61 and the adjustment plate 6 to move upward and reset. Then, the stored force of the adjustment spring 92 will automatically drive the self-control plate 12 to move upward and reset. Then, the stored force of the locking spring 11 will automatically drive the locking lever 10 to move in the opposite direction and reset, so that one end of the locking lever 10 is automatically inserted into the corresponding locking groove 53. The operation is convenient.

[0032] Example 3: In this example, the high-sealing natural gas transmission pipeline with adjustable direction can be further adjusted in multiple directions, based on Example 1, by setting six or eight sets of clamping seats 31 at equal intervals on the outside of the connecting secondary pipe 3. As shown above, this can meet different usage requirements and complete a series of tasks.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A directional adjustable high-sealing oil and gas transmission combined pipeline, comprising a connecting main pipe (1) and two sets of sealing flange assemblies (7), wherein the left side of the connecting main pipe (1) is connected to a first combined hose (2) through a set of sealing flange assemblies (7); The left side of the first combined hose (2) is connected to the connecting sub-pipe (3) via another set of sealing flange assemblies (7); Its features are: Two sets of snap-fit ​​seats (31) are installed at equal intervals on the outer side of the end of the connecting sub-pipe (3) near the support frame (4), with two seats in each set; A support frame (4) is rotatably mounted on the outside of a set of sealing flange assemblies (7) between the connecting main pipe (1) and the first combined hose (2). Adjusting rods (5) are installed inside the upper and lower sides of the left side of the support frame (4). The upper adjusting rod (5) passes through the upper surface of the support frame (4). Locking grooves (53) are opened at equal intervals on the outer side of the upper surface of the upper adjusting rod (5). A locking mechanism is provided on the right side of the upper adjusting rod (5). The adjusting rod (5) has a snap-fit ​​block (8) inside the end near the connecting sub-tube (3).

2. The directional adjustable high-sealing oil and gas transmission combined pipeline according to claim 1, characterized in that: The right end of the support frame (4) is arranged in a circular shape, and the left end of the support frame (4) is arranged in a "U" shape. The inner diameter of the left end of the support frame (4) is larger than the inner diameter of the right end of the support frame (4).

3. The directional adjustable high-sealing combined pipeline for transporting oil and natural gas according to claim 1, characterized in that: The locking mechanism includes a support plate (9) installed on the upper surface of the support frame (4), and a locking rod (10) is provided through the inside of the support plate (9). One end of the locking rod (10) is inserted into the locking groove (53) at the corresponding position.

4. The directional adjustable high-sealing combined pipeline for transporting oil and natural gas according to claim 1, characterized in that: The adjusting rod (5) has an adjusting groove (52) on the rear side of the end near the connecting sub-tube (3). A protruding rod (82) is provided through the adjusting groove (52). The front end of the protruding rod (82) is connected to the snap-fit ​​block (8). One side of the snap-fit ​​block (8) is connected to the inside of the adjusting rod (5) through a return spring (81). The end of the snap block (8) away from the adjusting rod (5) is inserted into the groove inside the snap block (31).

5. The directional adjustable, high-sealing combined pipeline for transporting oil and natural gas according to claim 4, characterized in that: The slots and the locking blocks (8) inside the locking base (31) are both rectangular in shape.

6. The directional adjustable, high-sealing combined pipeline for transporting oil and natural gas according to claim 3, characterized in that: A connecting spring (63) is installed in the groove opened in the upper adjusting rod (5). A protrusion (61) is connected above the connecting spring (63). An adjusting plate (6) is installed above the protrusion (61). A limit groove (62) is opened inside the protrusion (61). A limiting post (51) is installed in the groove of the upper adjusting rod (5). The limiting post (51) is inserted into the limiting through groove (62). The height of the limiting through groove (62) is greater than the diameter of the limiting post (51).

7. A directional adjustable, high-sealing combined pipeline for transporting oil and natural gas according to claim 6, characterized in that: A self-control rod (13) is installed on the outer rear side of the locking rod (10), and a locking spring (11) is nested on the outer side of the locking rod (10). One end of the locking spring (11) is connected to the support plate (9).

8. A directional adjustable, high-sealing combined pipeline for transporting oil and natural gas according to claim 7, characterized in that: A vertical rod (91) is installed in the groove on the rear side of the support plate (9), and an adjustment spring (92) is sleeved on the lower outer side of the vertical rod (91).

9. A directional adjustable, high-sealing combined pipeline for transporting oil and natural gas according to claim 8, characterized in that: A self-control plate (12) is provided on the rear side of the support plate (9). A connecting block (121) is installed on the side of the self-control plate (12) close to the support plate (9). A vertical rod (91) is provided through the inside of the connecting block (121). An adjustment spring (92) is installed below the connecting block (121). The right side of the support plate (9) is inclined, and a self-control rod (13) is attached to the lower right side of the support plate (9). An adjustment plate (6) is provided above the support plate (9). The self-control rod (13) forms a sliding structure through the support plate (9).

Citation Information

Patent Citations

  • Natural gas pipeline flexible in structure and convenient to adjust in direction

    CN111550609A