Pipeline connecting structure of natural gas recovery device

Abstract

The utility model relates to the technical field of pipeline connecting structures, discloses a pipeline connecting structure of a natural gas recovery device, and solves the problems that when a pipeline is inspected, a connecting device is inconvenient to disassemble and assemble, maintenance workers need to spend a lot of time to disassemble and assemble the pipeline when detecting the pipeline, and the detection efficiency is not high. A gas pipe is installed in the connecting device, the connecting device comprises a connecting pipe, two sets of fixing assemblies are fixedly installed on the outer side of the connecting pipe, two sets of straight grooves are formed in the inner side of the connecting pipe, two sets of annular grooves are formed in the inner side of the connecting pipe, two sets of square grooves are formed in the outer side of the connecting pipe in a penetrating mode, and two sets of clamping blocks are fixedly installed on the outer side of the gas pipe. Two sets of limiting blocks are fixedly installed on the outer side of the gas pipe, the connecting device is connected with the gas pipe, the clamping blocks correspond to the straight grooves, the gas pipe is inserted into the connecting device, and when the clamping blocks abut against the annular grooves, the clamping blocks rotate by 90 degrees clockwise, and the upper clamping block and the lower clamping block are clamped with the fixing assembly.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection structure technology, specifically a pipeline connection structure for a natural gas recovery device. Background Technology

[0002] Natural gas pipelines are pipelines that transport natural gas (including associated gas from oil fields) from extraction sites or processing plants to urban gas distribution centers or industrial users. They are also called gas transmission pipelines. Using natural gas pipelines to transport natural gas is the way to transport large quantities of natural gas on land. China was the first country to use wooden or bamboo pipes to transport natural gas. In the process of natural gas transportation, multiple transmission pipelines need to be connected, so connecting devices are needed to connect the natural gas pipelines.

[0003] Chinese patent CN218441105U discloses a connection structure for a natural gas pipeline. By bringing a second pipeline closer to a first pipeline, a collar contacts the first pipeline. Rotating the collar, assisted by a threaded structure, moves it towards the first pipeline, causing the second pipeline to move towards the first pipeline as well. During rotation, the collar grips an auxiliary plate between positioning rings via a through groove. The protruding auxiliary plate facilitates the collar's rotation. The top plate is a semi-circle with a diameter equal to the width of the auxiliary plate, preventing sharp edges from injuring workers and enhancing the auxiliary plate's aesthetics. When the collar rotates along the threaded plate on the exposed section surface, the tip of the fixing plate engages with the threads of the threaded plate under the force of a telescopic spring, further securing the connected collar and preventing loosening. A limiting plate moves within a limiting groove, providing support and stabilizing the fixing plate's movement. A fixing screw rotates into a threaded hole, allowing the positioning sleeve to be easily installed inside the collar.

[0004] Regarding the aforementioned technologies, in the existing technology, the connecting devices are inconvenient to disassemble and assemble when inspecting pipelines, causing maintenance workers to spend a lot of time disassembling and assembling them, resulting in low inspection efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a pipeline connection structure for a natural gas recovery device. By using this device, the problem of inconvenient disassembly and assembly of the connection device during pipeline inspection is solved, which leads to maintenance workers spending a lot of time disassembling and assembling the pipeline, resulting in low inspection efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipeline connection structure for a natural gas recovery device, including a connecting device, a gas pipe installed inside the connecting device, the connecting device including a connecting pipe, two sets of fixing components fixedly installed on the outer side of the connecting pipe, two sets of straight grooves and two sets of annular grooves opened on the inner side of the connecting pipe, each set of straight grooves communicating with the annular grooves, and each set of straight grooves and annular grooves being centrally symmetrically distributed on the inner side of the connecting pipe, two sets of square grooves penetrating through the outer side of the connecting pipe, the square grooves matching the fixing components; two sets of locking blocks fixedly installed on the outer side of the gas pipe, the locking blocks matching the straight grooves and the locking blocks matching the annular grooves, and two sets of limiting blocks fixedly installed on the outer side of the gas pipe. When it is necessary to connect the connecting device to the gas pipe, by aligning the locking blocks with the straight grooves, the gas pipe is inserted into the connecting device, and when the locking blocks abut against the annular grooves, they are rotated 90° clockwise to engage both sets of locking blocks with the fixing components.

[0007] Preferably, one end of the connecting pipe is fixedly equipped with two sets of fitting components, which match the limiting block. When the gas pipe is inserted into the connecting pipe and rotated 90° clockwise, the limiting block and the fitting components engage to perform a secondary locking, preventing the gas pipe from shaking during the gas transmission process and causing natural gas leakage.

[0008] Preferably, a flange is fixedly installed at the end of the connecting pipe away from the gas pipe, and the connecting pipe is fixed to the natural gas recovery device through the flange.

[0009] Preferably, the fixing component includes a U-shaped connecting block, the lower end of which is fixedly connected to the connecting pipe. A bolt is installed on the internal thread of the U-shaped connecting block, and the connecting block is fixedly installed at the lower end of the bolt. A fitting block is fixedly installed on one side of the connecting block, and a protruding piece is fixedly provided on the outer side of the fitting block. The fitting block matches the locking block. When the locking block abuts against the annular groove, it is rotated 90° clockwise to fit the locking block and the fitting block together. The protruding piece tightly fits them together. By rotating the bolt, the fitting block is pulled upward to tightly fit the gas pipe and the connecting pipe together.

[0010] Preferably, the fitting component includes two sets of connecting blocks II, one end of which is fixedly connected to the connecting tube. A clip and a block are slidably installed between the two sets of connecting blocks II. Two sets of connecting shells are fixedly installed on the upper end of the connecting blocks II. A spring is fixedly installed inside each of the two sets of connecting shells. A U-shaped connecting block II is fixedly installed on the upper end of the spring. A clip and a rod are fixedly installed on the lower end of the U-shaped connecting block II. The lower end of the clip and the rod passes through the connecting block II and the clip and the block and is slidably connected to the clip and the block. A connecting ball is fixedly installed on the upper end of the U-shaped connecting block II.

[0011] Preferably, the limiting block matches the locking block. When the gas pipe is inserted into the connecting pipe and rotated 90° clockwise, the limiting block and the locking block engage. Pulling the connecting ball upwards moves the locking rod away from the locking block, pushing the locking block to match the limiting block, and inserting the locking rod back in fixes the locking block and the limiting block together, preventing it from flipping over and leaking natural gas.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model proposes a pipeline connection structure for a natural gas recovery device, including a connecting device. A gas pipe is installed inside the connecting device. The connecting device includes a connecting pipe, and two sets of fixing components are fixedly installed on the outer side of the connecting pipe. Two sets of straight grooves and two sets of annular grooves are opened on the inner side of the connecting pipe. Each set of straight grooves and annular grooves are connected, and each set of straight grooves and annular grooves are centrally symmetrically distributed on the inner side of the connecting pipe. Two sets of square grooves are opened through the outer side of the connecting pipe, and the square grooves match the fixing components. Two sets of locking blocks are fixedly installed on the outer side of the gas pipe, matching the straight grooves and the annular grooves. Two sets of limiting blocks are fixedly installed on the outer side of the gas pipe. When it is necessary to connect the connecting device to the gas pipe, the gas pipe is inserted into the connecting device by aligning the locking blocks with the straight grooves. When the locking blocks abut against the annular grooves, they are rotated 90° clockwise to engage both sets of locking blocks with the fixing components. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of the connecting device and the gas pipe of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the connecting pipe of this utility model;

[0017] Figure 4 This is a schematic diagram of the planar structure of the connecting pipe of this utility model;

[0018] Figure 5 This is a schematic diagram of the fixing component structure of this utility model;

[0019] Figure 6 This is a three-dimensional structural diagram of the fitting component of this utility model;

[0020] Figure 7 This is a schematic diagram of the internal structure of the fitting component of this utility model.

[0021] In the diagram: 1. Connecting device; 11. Connecting pipe; 111. Straight groove; 112. Annular groove; 113. Square groove; 12. Fixing component; 121. U-shaped connecting block one; 122. Bolt; 123. Connecting block one; 124. Fitting block; 125. Protruding piece; 13. Fitting component; 131. Connecting block two; 132. Locking block; 133. Connecting shell; 134. U-shaped connecting block two; 135. Connecting ball; 136. Locking rod; 137. Spring; 14. Flange; 2. Gas pipe; 21. Limiting block; 22. Locking block. Detailed Implementation

[0022] 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.

[0023] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0024] Combination Figures 1-5 A pipeline connection structure for a natural gas recovery device includes a connecting device 1, a gas pipe 2 installed inside the connecting device 1, a connecting pipe 11, two sets of fixing components 12 fixedly installed on the outer side of the connecting pipe 11, two sets of straight grooves 111 and two sets of annular grooves 112 formed on the inner side of the connecting pipe 11, each set of straight grooves 111 and annular grooves 112 communicating with each other, and each set of straight grooves 111 and annular grooves 112 being centrally symmetrically distributed on the inner side of the connecting pipe 11, and two sets of square grooves 112 penetrating through the outer side of the connecting pipe 11. 13. The square groove 113 matches the fixing component 12; two sets of locking blocks 22 are fixedly installed on the outside of the gas pipe 2. The locking blocks 22 match the straight groove 111 and the annular groove 112. Two sets of limiting blocks 21 are fixedly installed on the outside of the gas pipe 2. When it is necessary to connect the connecting device 1 and the gas pipe 2, the gas pipe 2 is inserted into the connecting device 1 by aligning the locking blocks 22 with the straight groove 111. When the locking blocks 22 abut against the annular groove 112, rotate 90° clockwise to lock the upper and lower sets of locking blocks 22 with the fixing component 12.

[0025] Combination Figure 2A pipeline connection structure for a natural gas recovery device is provided. Two sets of fitting components 13 are fixedly installed at one end of the connecting pipe 11. The fitting components 13 are matched with the limiting block 21. When the gas pipe 2 is inserted into the connecting pipe 11 and rotated 90° clockwise, the limiting block 21 and the fitting components 13 are engaged to perform a secondary locking, preventing the gas pipe 2 from shaking and causing natural gas leakage during the gas transmission process.

[0026] Combination Figure 2 A pipeline connection structure for a natural gas recovery device, wherein a flange 14 is fixedly installed at the end of the connecting pipe 11 away from the gas pipe 2, and the connecting pipe 11 is fixed to the connection point of the natural gas recovery device through the flange 14.

[0027] Combination Figure 2 , Figure 5 A pipeline connection structure for a natural gas recovery device includes a fixing component 12 comprising a U-shaped connecting block 121. The lower end of the U-shaped connecting block 121 is fixedly connected to the connecting pipe 11. A bolt 122 is installed on the internal thread of the U-shaped connecting block 121. A connecting block 123 is fixedly installed on the lower end of the bolt 122. A fitting block 124 is fixedly installed on one side of the connecting block 123. A protruding piece 125 is fixedly provided on the outer side of the fitting block 124. The fitting block 124 matches a locking block 22. When the locking block 22 abuts against the annular groove 112, it is rotated 90° clockwise to fit the locking block 22 and the fitting block 124 together. The protruding piece 125 tightly fits them together. By rotating the bolt 122, the fitting block 124 is pulled upward to tightly fit the gas pipe 2 and the connecting pipe 11 together.

[0028] Combination Figure 2 , Figure 6-7 A pipeline connection structure for a natural gas recovery device includes a fitting component 13 comprising two sets of connecting blocks 131. One end of each connecting block 131 is fixedly connected to a connecting pipe 11. A clip and block 132 are slidably installed between the two sets of connecting blocks 131. Two sets of connecting shells 133 are fixedly installed on the upper end of each connecting block 131. A spring 137 is fixedly installed inside each of the two sets of connecting shells 133. A U-shaped connecting block 134 is fixedly installed on the upper end of each spring 137. A clip and rod 136 is fixedly installed on the lower end of the U-shaped connecting block 134. The lower end of the clip and rod 136 passes through the connecting block 131 and the clip and block 132 and is slidably connected to the clip and block 132. A connecting ball 135 is fixedly installed on the upper end of the U-shaped connecting block 134.

[0029] Combination Figure 2 , Figure 6A pipeline connection structure for a natural gas recovery device, wherein a limiting block 21 matches a locking block 132. When the gas pipe 2 is inserted into the connecting pipe 11 and rotated 90° clockwise, the limiting block 21 engages with the locking block 132. The connecting ball 135 is pulled upward to move the locking rod 136 away from the locking block 132, and the locking block 132 is pushed to match the limiting block 21. The locking rod 136 is then inserted back to fix the locking block 132 to the limiting block 21, preventing it from flipping and leaking natural gas.

[0030] Working principle: Align the locking block 22 of the gas pipe 2 with the straight groove 111 of the connecting pipe 11 of the connecting device 1 and insert it. After the locking block 22 touches the annular groove 112, rotate it 90° clockwise so that the locking block 22 engages with the engaging block 124 of the fixing component 12. Rotate the bolt 122 to pull the engaging block 124 so that the gas pipe 2 and the connecting pipe 11 fit tightly together. At the same time, the limiting block 21 of the gas pipe 2 engages with the locking block 132 of the engaging component 13 of the connecting pipe 11. Pull the connecting ball 135 upward so that the locking rod 136 leaves the locking block 132. Push the locking block 132 to fix it with the limiting block 21 to prevent overturning and leakage of natural gas. The connecting pipe 11 is fixed to the natural gas recovery device 2 through the flange 14.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipeline connection structure of a natural gas recovery device, comprising a connection device (1), a gas pipe (2) is installed inside the connection device (1), the connection device (1) comprises a connecting pipe (11), two groups of fixed components (12) are fixedly installed on the outer side of the connecting pipe (11), characterized in that: The inner side of the connecting pipe (11) is provided with two groups of straight grooves (111), and the inner side of the connecting pipe (11) is provided with two groups of annular grooves (112). Each group of straight grooves (111) is communicated with the annular grooves (112), and each group of straight grooves (111) and the annular grooves (112) are centrally symmetrically distributed on the inner side of the connecting pipe (11). The outer side of the connecting pipe (11) is provided with two groups of square grooves (113) penetratingly, and the square grooves (113) are matched with the fixing assembly (12). The outer side of the gas pipe (2) is fixedly provided with two groups of clamping blocks (22), the clamping blocks (22) are matched with the straight grooves (111), and the clamping blocks (22) are matched with the annular grooves (112). The outer side of the gas pipe (2) is fixedly provided with two groups of limiting blocks (21).

2. A pipe connection structure for a natural gas recovery device according to claim 1, characterized in that: One end of the connecting pipe (11) is fixedly provided with two groups of fitting assemblies (13), and the fitting assemblies (13) are matched with the limiting blocks (21).

3. A pipe connection structure for a natural gas recovery device according to claim 2, characterized in that: The end of the connecting pipe (11) away from the gas pipe (2) is fixedly provided with a flange (14).

4. A pipe connection structure for a natural gas recovery device according to claim 3, characterized in that: The fixing assembly (12) comprises a U-shaped connecting block one (121), the lower end of the U-shaped connecting block one (121) is fixedly connected with the connecting pipe (11), the inside of the U-shaped connecting block one (121) is threadedly provided with a bolt (122), the lower end of the bolt (122) is fixedly provided with a connecting block one (123), one side of the connecting block one (123) is fixedly provided with a fitting block (124), the outer side of the fitting block (124) is fixedly provided with a protruding piece (125), and the fitting block (124) is matched with the clamping block (22).

5. A pipe connection structure for a natural gas recovery device according to claim 4, characterized in that: The fitting assembly (13) comprises two groups of connecting blocks two (131), one end of the connecting block two (131) is fixedly connected with the connecting pipe (11), a clamping block (132) is slidingly arranged between the two groups of connecting blocks two (131), the upper end of the connecting block two (131) is fixedly provided with two groups of connecting shells (133), the inside of the two groups of connecting shells (133) is fixedly provided with springs (137), the upper end of the spring (137) is fixedly provided with a U-shaped connecting block two (134), the lower end of the U-shaped connecting block two (134) is fixedly provided with a clamping rod (136), the lower end of the clamping rod (136) penetrates through the connecting block two (131) and the clamping block (132) and is slidingly connected with the clamping block (132), and the upper end of the U-shaped connecting block two (134) is fixedly provided with a connecting ball (135).

6. A pipe connection structure for a natural gas recovery device according to claim 5, characterized in that: The limiting block (21) is matched with the clamping block (132).

Images