Gas pipeline pressure measuring device and gas pipe

Abstract

The utility model relates to a fuel gas pipeline pressure measuring device and a fuel gas pipe, and belongs to the technical field of pressure measuration.The fuel gas pipeline pressure measuring device comprises a pipeline connecting mechanism, and the pipeline connecting mechanism comprises a breather pipe connected and communicated with the fuel gas pipe, a connecting assembly arranged on the outer side of the breather pipe and secondarily connected with the fuel gas pipe, and a synchronous dismounting and mounting mechanism; the synchronous disassembly and assembly mechanism comprises a connecting block which communicates with a gas source and is of a hollow structure. The connecting block is provided with a plurality of pipeline connecting mechanisms and a driving mechanism used for driving a plurality of connecting assemblies to be connected with and disassembled from the gas pipe at the same time. The multiple gas pipes can be connected with the pressure measuring device at the same time through the driving mechanism, the driving mechanism rotates reversely to enable the multiple gas pipes to be disassembled at the same time when all tests are completed and disassembled, the efficiency of assembling and disassembling of the pressure measuring device is improved, and the situation that manual connection and disassembly with the pressure measuring device are needed one by one during assembling and disassembling is avoided; the installation efficiency is improved, the disassembly efficiency is improved, and the working efficiency of the pressure measuring device is improved.

Description

Technical Field

[0001] This application relates to the technical field of pressure measurement, and particularly relates to a gas pipeline pressure measurement device and a gas pipeline. Background Art

[0002] Gas is a common kitchen combustion fuel in current life. Gas is the general term for gaseous fuels, which can burn and release heat for use by residents and industrial enterprises. There are many types of gas, mainly including natural gas, artificial gas, liquefied petroleum gas, biogas, and coal gas. Centralized gas transportation requires pipelines for transportation.

[0003] Before installing the existing gas pipeline, it is necessary to intercept an appropriate length of the gas pipeline body to adapt to the required installation length. After interception, an internal thread needs to be installed and connected, then a wave knocking operation is performed on the pipeline to be installed, and then the pressure of the pipeline after wave knocking is measured to self-check whether the pipeline is qualified.

[0004] Existing gas pipeline pressure measurement devices usually have multiple connection ports opened on a pipeline, so that multiple gas pipelines are respectively screwed on for batch pressure measurement, or there is only one connection port on a pressure measurement device for connecting one pipeline at a time for pressure measurement. However, when performing batch pressure measurement, multiple gas pipelines still need to be manually screwed on and connected separately, which is no different from connecting a single gas pipeline, resulting in low detection efficiency and reduced work efficiency when measuring multiple gas pipelines. Summary of the Invention

[0005] The embodiments of this application provide a gas pipeline pressure measurement device and a gas pipeline to solve the problem in the related art that when performing batch pressure measurement with existing pressure measurement devices, multiple gas pipelines still need to be manually screwed on and connected separately, which is no different from connecting a single gas pipeline, resulting in low detection efficiency and reduced work efficiency when measuring multiple gas pipelines.

[0006] The first aspect of the embodiments of this application provides a gas pipeline pressure measurement device, including:

[0007] A pipeline connection mechanism, the pipeline connection mechanism includes a ventilation pipe connected and communicated with the gas pipeline, and a connection component disposed outside the ventilation pipe for secondary connection with the gas pipeline;

[0008] A synchronous disassembly and assembly mechanism, the synchronous disassembly and assembly mechanism includes a connection block communicated with the gas source and having a hollow structure, and a plurality of pipeline connection mechanisms and a driving mechanism for driving the plurality of connection components to be connected and disassembled with the gas pipeline simultaneously are disposed on the connection block.

[0009] In some embodiments, the connection component includes an inner sleeve sleeved outside the ventilation pipe and an outer sleeve sleeved outside the inner sleeve, and both the inner sleeve and the outer sleeve are hollow structures with openings at both ends;

[0010] A synchronous rotation assembly is provided between the inner sleeve and the outer sleeve, and an internal thread is provided on the inner wall of the inner sleeve;

[0011] An axial limiting assembly is arranged between the end of the outer sleeve away from the gas pipe and the ventilation pipe.

[0012] In some embodiments, the synchronous rotation component includes a fixed block disposed on the inner wall of the outer sleeve, a slide groove opened on the fixed block, and a sliding block disposed on the outer wall of the inner sleeve and slidingly cooperating with the slide groove.

[0013] In some embodiments, a limiting block is provided on the outer wall of one end of the inner sleeve away from the gas pipe to form an axial limit with the fixing block.

[0014] In some embodiments, the axial limiting assembly includes an annular block disposed on the outside of the ventilation pipe and an annular groove formed on the inner wall of an opening at one end of the outer sleeve away from the gas pipe and cooperating with the annular block for limiting.

[0015] In some embodiments, a connection cavity connected to a gas pipe is provided in the ventilation pipe;

[0016] The cross section of the connecting cavity is T-shaped;

[0017] The end of the vent pipe away from the gas pipe passes through the connection block and extends out to be connected and communicated with the connection block after continuous bending;

[0018] The extended end of the ventilation pipe is bent into a U shape, and a valve is arranged at the extended end of the ventilation pipe.

[0019] In some embodiments, a first gear transmission-connected to the driving mechanism is disposed on the outer side wall of the outer sleeve.

[0020] In some embodiments, the driving mechanism includes a rotating shaft rotatably connected to the connecting block and a second gear disposed on the outer side of the rotating shaft and meshingly connected to the first gear.

[0021] In some embodiments, a plurality of the pipe connection mechanisms are arranged in a ring-like shape with equal spacing around the center of the second gear;

[0022] A gas source pipe connected to a gas source is arranged on one side of the connection block away from the gas pipe.

[0023] A second aspect of an embodiment of the present application provides a gas pipe, comprising:

[0024] A main pipe and a connecting pipe head arranged at one end of the main pipe, wherein the connecting pipe head is connected to the vent pipe;

[0025] An outer wall of the main pipe near the connecting pipe head is provided with an outer thread which can be threadedly connected with the inner sleeve;

[0026] A sealing ring adapted to be connected to the connection cavity for sealing is sleeved on the outer side of the connecting pipe head.

[0027] The beneficial effects brought by the technical solution provided in this application include:

[0028] After the gas pipe is intercepted, multiple gas pipes are respectively inserted into each ventilation pipe for pre-connection to avoid dropping caused by shaking or overfeeding. Then, tools such as a wrench or a socket are used to connect to the driving mechanism, and then the driving mechanism is operated to drive the multiple connecting components to be secondarily connected to the gas pipe simultaneously.

[0029] When installed, multiple gas pipes can be connected to the pressure measuring device simultaneously through the driving mechanism. When disassembling after all tests are completed, the driving mechanism rotates in the reverse direction, and multiple gas pipes can be disassembled simultaneously, improving the installation and disassembly efficiency of the pressure measuring device, avoiding the need to manually connect and disassemble with the pressure measuring device one by one during installation and disassembly, improving the installation efficiency, improving the disassembly efficiency, and improving the working efficiency of the pressure measuring device. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0031] Figure 1 It is a side view schematic diagram provided for the embodiment of this application;

[0032] Figure 2 It is a schematic diagram of the pre-connection between the pipeline connection mechanism and the gas pipe in the embodiment of this application;

[0033] Figure 3 It is a schematic diagram of the secondary connection between the pipeline connection mechanism and the gas pipe in the embodiment of this application;

[0034] Figure 4 It is a schematic diagram of the structure provided by the outer sleeve and the inner sleeve in the embodiment of this application;

[0035] Figure 5 It is a connection schematic diagram between the ventilation pipe and the gas pipe provided in the embodiment of this application;

[0036] Figure 6 It is a front view schematic diagram provided for the embodiment of this application;

[0037] Figure 7 It is a schematic diagram of the structure between the ventilation pipe and the connection block provided in the embodiment of this application.

[0038] 1. Connecting block; 2. Outer sleeve; 3. Inner sleeve; 4. Main pipe; 41. Connecting pipe head; 5. Second gear; 6. Rotating shaft; 7. Vent pipe; 8. First gear; 9. Gas source pipe; 10. Valve; 12. Limit block; 13. Fixed block; 131. Sliding groove; 14. Slide block; 15. Annular groove; 16. Annular block; 17. Connecting cavity; 18. Sealing ring. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0040] The embodiments of the present application provide a gas pipeline pressure measuring device and a gas pipeline, which can solve the problem that when the existing pressure measuring devices perform batch pressure measurement, multiple gas pipelines still need to be manually screwed on separately, which is no different from connecting a single gas pipeline, resulting in low detection efficiency and reduced working efficiency when measuring multiple gas pipelines.

[0041] See Figures 1-7 As shown in the figure, in the first aspect, the embodiments of the present application provide a gas pipeline pressure measuring device, including:

[0042] A pipeline connection mechanism, which includes a vent pipe 7 connected and communicated with the gas pipeline, and a connection component arranged outside the vent pipe 7 for secondary connection with the gas pipeline;

[0043] A synchronous disassembly and assembly mechanism, which includes a connecting block 1 communicated with the gas source and having a hollow structure. A plurality of pipeline connection mechanisms and a driving mechanism for driving a plurality of connection components to be connected and disassembled with the gas pipeline simultaneously are arranged on the connecting block 1.

[0044] After the gas pipeline is intercepted, a plurality of gas pipelines are respectively inserted into the respective vent pipes 7 for pre-connection to prevent shaking or over-insertion and dropping. Then, tools such as a wrench or a socket are used to connect with the driving mechanism, and then the driving mechanism is operated to drive the plurality of connection components to be secondarily connected with the gas pipeline simultaneously.

[0045] During installation, a plurality of gas pipelines can be connected to the pressure measuring device simultaneously through the driving mechanism. When all the tests are completed and disassembled, the driving mechanism rotates in the reverse direction to simultaneously disassemble the plurality of gas pipelines, improving the installation and disassembly efficiency of the pressure measuring device, avoiding the need to manually connect and disassemble with the pressure measuring device one by one during installation and disassembly, improving the installation efficiency, improving the disassembly efficiency, and improving the working efficiency of the pressure measuring device.

[0046] In some alternative embodiments, referring to Figures 1-4 and Figure 6 As shown, in this gas pipeline pressure measuring device, the connection assembly includes an inner sleeve 3 sleeved outside the ventilation pipe 7 and an outer sleeve 2 sleeved outside the inner sleeve 3. Both the inner sleeve 3 and the outer sleeve 2 are hollow structures with openings at both ends. A synchronous rotation assembly is provided between the inner sleeve 3 and the outer sleeve 2. Internal threads are provided on the inner wall of the inner sleeve 3, and an axial limiting assembly is provided between one end of the outer sleeve 2 away from the gas pipe and the ventilation pipe 7.

[0047] When the gas pipe is inserted into the ventilation pipe 7, the external threads on the gas pipe are brought into contact with the internal threads on the inner sleeve 3 for preliminary connection. Through the synchronous rotation assembly, the outer sleeve 2 can drive the inner sleeve 3 to rotate synchronously when rotating. After the inner sleeve 3 rotates, it will continuously connect with the external threads on the gas pipe and extend out from the outer sleeve 2 to be screwed onto the gas pipe. Through the axial limiting assembly, the outer sleeve 2 can be limited on the ventilation pipe 7, avoiding random movement that causes the outer sleeve 2 to fall off, and also avoiding the inability to form a limiting connection between the inner sleeve 3 and the gas pipe due to the movement of the outer sleeve 2.

[0048] In some alternative embodiments, referring to Figures 1-4 As shown, in this gas pipeline pressure measuring device, the synchronous rotation assembly includes a fixing block 13 provided on the inner wall of the outer sleeve 2, a sliding groove 131 opened on the fixing block 13, and a sliding block 14 provided on the outer wall of the inner sleeve 3 and cooperating with the sliding groove 131 for sliding.

[0049] Through the fixing block 13 and the sliding block 14, circumferential limitation is formed between the outer sleeve 2 and the inner sleeve 3, so that when the outer sleeve 2 rotates, the inner sleeve 3 can rotate synchronously. Through the sliding groove 131 and the sliding block 14, when the inner sleeve 3 rotates, the inner sleeve 3 can synchronously move axially to be threadedly connected with the gas pipe.

[0050] In some alternative embodiments, referring to Figures 1-4 As shown, in this gas pipeline pressure measuring device, a limiting block 12 for forming axial limitation with the fixing block 13 is provided on the outer wall of one end of the inner sleeve 3 away from the gas pipe.

[0051] Through the limiting block 12, the extending travel distance of the inner sleeve 3 can be restricted, avoiding excessive extension and dropping. Also, after the pressure measuring device is reconnected to the gas pipe, the inner sleeve 3 has no axial limitation, resulting in it still being pulled out. Through the limiting block 12, when the gas pipe is ventilated and pressure measured, the pressure resistance can be improved, avoiding falling off from the ventilation pipe 7 due to being unable to withstand the pressure measurement pressure.

[0052] In some alternative embodiments, referring to Figures 1-4 and Figure 6As shown, in the gas pipeline pressure measuring device, the axial limiting assembly includes an annular block 16 arranged on the outside of the ventilation pipe 7 and an annular groove 15 opened on the inner wall of the end of the outer sleeve 2 away from the gas pipe and cooperating with the annular block 16 for limiting.

[0053] By fixing the annular block 16 on the outer wall of the vent pipe 7 , the outer sleeve 2 can be engaged with the annular block 16 through the annular groove 15 , limiting the axial movement of the outer sleeve 2 , so that the outer sleeve 2 cannot fall off the vent pipe 7 .

[0054] In some optional embodiments, see Figure 1 , Figure 5 and Figure 7 As shown, in the gas pipeline pressure measuring device, a connecting cavity 17 connected to the gas pipe is opened in the ventilation pipe 7, and the cross-section of the connecting cavity 17 is T-shaped. The end of the ventilation pipe 7 away from the gas pipe passes through the connecting block 1 and extends out and is connected and communicated with the connecting block 1 after continuous bending. The extended end of the ventilation pipe 7 is bent into a U shape, and a valve 10 is provided at the extended end of the ventilation pipe 7.

[0055] The connection between the gas pipe and the ventilation pipe 7 is made tighter by a separately arranged connecting cavity 17. By arranging a valve 10 on each ventilation pipe 7, the valve 10 can control the opening and closing of the ventilation pipe 7 connected to each gas pipe that needs to be pressure measured. The pressure of all gas pipes can be measured simultaneously, and the pressure of each gas pipe can also be measured separately, thereby improving the pressure measurement accuracy, working efficiency and practicality of the pressure measuring device.

[0056] The end of the ventilation pipe 7 close to the connecting block 1 first passes through the connecting block 1, and then extends from the end of the connecting block 1 away from the gas pipe. Then the extended end is bent 90 degrees twice in a row, and the bent end faces the connecting block 1, is connected and communicated with the connecting block 1, and when the connecting block 1 takes in air through the gas source pipe 9, the gas can flow into the corresponding ventilation pipe 7 by opening the valve 10 of the corresponding gas pipe, and then flows into the gas pipe through the ventilation pipe 7.

[0057] In some optional embodiments, see Figure 1 and Figure 6 As shown, in the gas pipeline pressure measuring device, a first gear 8 connected to a driving mechanism is provided on the outer wall of the outer sleeve 2, and the driving mechanism includes a rotating shaft 6 rotatably connected to the connecting block 1 and a second gear 5 arranged on the outer side of the rotating shaft 6 and meshingly connected to the first gear 8.

[0058] In this embodiment, a plurality of pipeline connection mechanisms are arranged in a ring-shaped manner with equal spacing around the center of the second gear 5;

[0059] A gas source pipe 9 connected to a gas source is provided on a side of the connection block 1 away from the gas pipe.

[0060] A plurality of pipe connection mechanisms are provided on the connection block 1 and are arranged in a circular shape with equal spacing around the center of the second gear 5, so that the second gear 5 meshes with each first gear 8 at the same angular position, and the action and stroke of each connection component are the same, thereby improving the connection accuracy.

[0061] By connecting the tool to the rotating shaft 6, the rotating shaft 6 is driven to rotate, and then the rotating shaft 6 drives the second gear 5 to rotate, and the second gear 5 synchronously drives all the first gears 8 to rotate, and all the first gears 8 rotate in the same direction, so that the outer sleeve 2 can drive the inner sleeve 3 to rotate, and the inner sleeve 3 is screwed on the gas pipe, so that the gas pipe is connected to the pressure measuring device, wherein the direction of the threaded connection between the gas pipe and the inner sleeve 3 is adapted to the direction of rotation of the outer sleeve 2.

[0062] See also Figures 1-5 As shown, the second aspect of the embodiment of the present application provides a gas pipe, comprising:

[0063] The main pipe 4 and a connecting pipe head 41 are arranged at one end of the main pipe 4, and the connecting pipe head 41 is connected to the ventilation pipe 7. An external thread that can be threadedly connected to the inner sleeve 3 is provided on the outer wall of the main pipe 4 near the connecting pipe head 41. The outer side of the connecting pipe head 41 is provided with a sealing ring 18 that is adapted to be connected to the connecting cavity 17 for sealing.

[0064] When connection is required, the gas pipe is inserted into the connecting cavity 17 through the connecting pipe head 41, and the sealing ring 18 is used to seal the connecting cavity 17. Because the connecting cavity 17 is T-shaped, the sealing ring 18 is also T-shaped, so that the sealing effect between the main pipe 4 and the connecting cavity 17 is improved, and the contact area between the T-shaped sealing ring 18 and the connecting cavity 17 is increased. The friction force can make the pre-connection between the main pipe 4 and the ventilation pipe 7 more secure to prevent it from falling off.

[0065] Working principle and process of this application:

[0066] After the gas pipe is cut, multiple gas pipes are inserted into each ventilation pipe 7 for pre-connection to avoid shaking or over-feeding resulting in falling. Then, tools such as a wrench or a socket are used to connect them to the driving mechanism, and then the driving mechanism is operated to drive the multiple connection components to be reconnected to the gas pipe at the same time.

[0067] During installation, multiple gas pipes can be connected to the pressure measuring device at the same time through the driving mechanism. When all tests are completed and the device is disassembled, the driving mechanism can rotate in the opposite direction to disassemble the multiple gas pipes at the same time, thereby improving the efficiency of installation and disassembly of the pressure measuring device and avoiding the need to manually connect and disassemble the pressure measuring device one by one during installation and disassembly, thereby improving the installation efficiency, disassembly efficiency and working efficiency of the pressure measuring device.

[0068] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" 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 of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0069] It should be noted that in the present application, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0070] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A gas pipeline pressure measuring device, characterized in that, include: A pipeline connection mechanism, the pipeline connection mechanism comprising a vent pipe (7) connected to and in communication with the gas pipe, and a connection component arranged outside the vent pipe (7) and secondarily connected to the gas pipe; A synchronous disassembly and assembly mechanism, comprising a connection block (1) which is connected to a gas source and has a hollow structure, wherein the connection block (1) is provided with a plurality of pipeline connection mechanisms and a driving mechanism for driving a plurality of connection components to be connected and disassembled from a gas pipe at the same time.

2. The gas pipeline pressure measuring device according to claim 1, characterized in that: The connection assembly comprises an inner sleeve (3) sleeved on the outside of the ventilation pipe (7) and an outer sleeve (2) sleeved on the outside of the inner sleeve (3); the inner sleeve (3) and the outer sleeve (2) are both hollow structures with openings at both ends; A synchronous rotation component is provided between the inner sleeve (3) and the outer sleeve (2), and an internal thread is provided on the inner wall of the inner sleeve (3); An axial limiting assembly is provided between the end of the outer sleeve (2) away from the gas pipe and the ventilation pipe (7).

3. The gas pipeline pressure measuring device according to claim 2, characterized in that: The synchronous rotation component comprises a fixed block (13) arranged on the inner wall of the outer sleeve (2), a slide groove (131) provided on the fixed block (13), and a sliding block (14) arranged on the outer wall of the inner sleeve (3) and slidingly cooperating with the slide groove (131).

4. The gas pipeline pressure measuring device according to claim 3, characterized in that: A limiting block (12) is provided on the outer wall of one end of the inner sleeve (3) away from the gas pipe and forms an axial limit with the fixing block (13).

5. The gas pipeline pressure measuring device according to claim 2, characterized in that: The axial limiting assembly comprises an annular block (16) arranged on the outside of the ventilation pipe (7) and an annular groove (15) formed on the inner wall of an end opening of the outer sleeve (2) away from the gas pipe and cooperating with the annular block (16) for limiting.

6. The gas pipeline pressure measuring device according to claim 1, characterized in that: The ventilation pipe (7) is provided with a connection cavity (17) connected to the gas pipe; The cross section of the connecting cavity (17) is T-shaped; The end of the ventilation pipe (7) away from the gas pipe passes through the connection block (1) and extends out to be connected and communicated with the connection block (1) after continuous bending; The protruding end of the ventilation pipe (7) is bent into a U shape, and a valve (10) is provided at the protruding end of the ventilation pipe (7).

7. The gas pipeline pressure measuring device according to claim 2, characterized in that: A first gear (8) which is transmission-connected to the driving mechanism is arranged on the outer side wall of the outer sleeve (2).

8. The gas pipeline pressure measuring device according to claim 7, characterized in that: The driving mechanism comprises a rotating shaft (6) rotatably connected to the connecting block (1) and a second gear (5) arranged outside the rotating shaft (6) and meshingly connected to the first gear (8).

9. The gas pipeline pressure measuring device according to claim 8, characterized in that: The plurality of pipeline connection mechanisms are arranged in a ring shape with equal spacing around the center of the second gear (5); A gas source pipe (9) connected to a gas source is provided on a side of the connection block (1) away from the gas pipe.

10. A gas pipe adapted to the gas pipeline pressure measuring device according to any one of claims 1-9, characterized in that, include: A main pipe (4) and a connecting pipe head (41) arranged at one end of the main pipe (4), and the connecting pipe head (41) is connected to a ventilation pipe (7); An external thread that can be threadedly connected to the inner sleeve (3) is provided on the outer side wall of one end of the main pipe (4) close to the connecting pipe head (41); A sealing ring (18) that is sleeved on the outside of the connecting pipe head (41) and is adaptively connected to the connecting cavity (17) for sealing is provided.

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