Convenient pressure maintaining device for gas pipeline transformation

Abstract

The utility model provides a convenient pressure maintaining device for gas pipeline transformation, which comprises a first connecting pipe, a diffusing piece, a second connecting pipe and a barometer, and is characterized in that one end of the first connecting pipe is connected with a diffusing port of a gas pipeline network; the diffusing part comprises a first air hole, a second air hole and a third air hole which are communicated with one another, the first air hole can be locked and plugged, and any one of the second air hole and the third air hole is detachably connected with the other end of the first connecting pipe; the head end of the second connecting pipe is detachably connected with the other one of the second air hole and the third air hole; and the barometer is connected with the tail end of the second connecting pipe. According to the utility model, the first connecting pipe is directly butted with the diffusion port of the gas pipe network, so that the tedious operation of detaching the short connecting piece of the ball valve of the pressure regulating box in the traditional mode is omitted, and the working efficiency of the pressure maintaining work is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of pressure measuring device technology, and more specifically, it relates to a convenient pressure maintaining device for gas pipeline renovation. Background Technology

[0002] During the implementation of gas-for-coal projects, it is necessary to maintain the gas pressure in the pipeline network on a daily basis. This means that the gas pressure in the gas pipeline network needs to be monitored frequently to prevent insufficient gas supply or pipeline leaks.

[0003] In traditional pressure-maintaining methods, the short-connector above the ball valve at the inlet of the pressure regulating box needs to be removed, and then a pressure gauge needs to be installed at that location for pressure testing. However, installing and removing the pressure gauge at this location in the pressure regulating box is cumbersome, resulting in low efficiency in pressure maintenance. Utility Model Content

[0004] The purpose of this utility model is to provide a convenient pressure-maintaining device for gas pipeline renovation, so as to improve the efficiency of pressure maintenance.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a convenient pressure-maintaining device for gas pipeline modification is provided, comprising a first connecting pipe, a venting component, a second connecting pipe, and a pressure gauge. One end of the first connecting pipe is connected to the vent of the gas pipeline network. The venting component includes a first air hole, a second air hole, and a third air hole that are interconnected. The first air hole can be locked and sealed. Either the second air hole or the third air hole is detachably connected to the other end of the first connecting pipe. The first end of the second connecting pipe is detachably connected to the other of the second and third air holes. The pressure gauge is connected to the tail end of the second connecting pipe.

[0006] In one possible implementation, the first connecting pipe is rotatably provided with a first female connector at both ends, and the gas pipeline vent is provided with a first male connector, the first male connector being adapted to the first female connector.

[0007] In one possible implementation, a second male connector is provided at both the second and third vent holes of the venting component, and the first female connector is adapted to the second male connector.

[0008] In one possible implementation, the two ends of the second connecting pipe are rotatably provided with second female connectors, which are adapted to the second male connectors.

[0009] In one possible implementation, the venting element is selected as a three-way valve.

[0010] In one possible implementation, the pressure gauge includes an interconnected air tube and a gauge head, with the detection end of the pressure gauge located at the bottom end of the air tube, and a third male connector provided on the air tube, which is adapted to the second female connector.

[0011] In one possible implementation, a bracket and a support plate are also included, wherein the bracket is placed on the ground; the support plate is placed on top of the bracket, and the pressure gauge is detachably mounted on the support plate.

[0012] In one possible implementation, the support plate is arranged horizontally, and the support plate is provided with a hanging groove, the width of which is greater than the diameter of the air pipe and less than the thickness of the meter head.

[0013] In one possible implementation, the support includes a telescopic assembly, a support plate is disposed at the top of the telescopic assembly, and a plurality of legs are provided at the bottom of the telescopic assembly, the legs being evenly arranged along the circumference of the telescopic assembly.

[0014] In one possible implementation, the telescopic assembly includes a telescopic tube, a telescopic rod, and a locking bolt. The locking bolt is screwed onto the telescopic tube, and a portion of the telescopic rod is inserted into the telescopic tube. The locking bolt can fix the telescopic rod to the telescopic tube by pressing against the telescopic rod. The support leg is located at the bottom of the telescopic tube, and the support plate is located at the top of the telescopic rod.

[0015] The advantages of the convenient pressure-maintaining device for gas pipeline renovation provided by this utility model are as follows: Compared with the prior art, this utility model directly connects the first connecting pipe to the gas pipeline network vent, eliminating the cumbersome operation of disassembling the ball valve short-connector of the pressure regulating box in the traditional method. The three-hole design of the vent component realizes the adjustability of the gas pressure gauge installation direction. The bidirectional connection selection of the second and third gas holes further expands the adaptability of the device. At the same time, the lockable sealing function of the first gas hole can prevent gas leakage. The whole device forms a modular structure. When the pressure measurement is completed, the first connecting pipe and the second connecting pipe can be vented through the vent component to reduce the gas pressure in the first connecting pipe and the second connecting pipe, which facilitates the disassembly of both. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1A schematic diagram of the structure of a convenient pressure-maintaining device for gas pipeline modification provided in an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a convenient pressure-maintaining device for gas pipeline modification provided in an embodiment of the present utility model.

[0019] The labels for the attached figures are as follows:

[0020] 1. First connecting pipe; 2. Venting component; 3. Second connecting pipe; 4. Pressure gauge; 5. Support;

[0021] 101. First female connector;

[0022] 201, First vent; 202, Second vent; 203, Third vent; 204, Second male connector;

[0023] 301. Second female connector;

[0024] 401. Trachea; 402. Meter head; 403. Third male connector;

[0025] 501. Support plate; 502. Hanging groove; 503. Telescopic assembly; 504. Outrigger; 505. Telescopic tube; 506. Telescopic rod; 507. Locking bolt. Detailed Implementation

[0026] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0027] It should be further noted that the accompanying drawings and embodiments of this utility model mainly describe the concept of this utility model. Based on this concept, some specific forms and settings of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of this utility model, they can implement the above-mentioned specific forms and settings in a well-known manner.

[0028] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0029] The terms “length”, “width”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, and “outer” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0031] The present invention provides a convenient pressure-maintaining device for gas pipeline modification.

[0032] Please refer to the following: Figure 1 The convenient pressure-maintaining device for gas pipeline modification includes a first connecting pipe 1, a venting component 2, a second connecting pipe 3, and a pressure gauge 4. One end of the first connecting pipe 1 is connected to the vent of the gas pipeline network. The venting component 2 includes a first vent 201, a second vent 202, and a third vent 203 that are interconnected. The first vent 201 can be locked and sealed. Either the second vent 202 or the third vent 203 is detachably connected to the other end of the first connecting pipe 1. The first end of the second connecting pipe 3 is detachably connected to the other of the second vent 202 and the third vent 203. The pressure gauge 4 is connected to the tail end of the second connecting pipe 3.

[0033] The beneficial effects of the convenient pressure-maintaining device for gas pipeline renovation provided in this embodiment are as follows: Compared with the prior art, the convenient pressure-maintaining device for gas pipeline renovation provided in this embodiment directly connects the first connecting pipe 1 to the gas pipeline network vent, eliminating the cumbersome operation of disassembling the ball valve short-connector of the pressure regulating box in the traditional method. The three-hole design of the venting component 2 realizes the adjustability of the installation direction of the pressure gauge 4. The bidirectional connection selection of the second and third air holes 203 further expands the adaptability of the device. At the same time, the lockable sealing function of the first air hole 201 can prevent gas leakage. The whole forms a modular structure. At the same time, when the pressure measurement is completed, the first connecting pipe 1 and the second connecting pipe 3 can be vented through the venting component 2 to reduce the gas pressure in the first connecting pipe 1 and the second connecting pipe 3, which facilitates the disassembly of both.

[0034] In this embodiment, first female connectors 101 are rotatably provided at both ends of the first connecting pipe 1, and a first male connector is provided at the vent of the gas pipeline network. The first male connector is compatible with the first female connector 101. The rotatable docking structure between the first female connector 101 and the first male connector of the vent allows for quick assembly and disassembly without tools. The rotatable connector design greatly improves the convenience of pipeline connection and avoids the time-consuming operation of tightening with a wrench required by traditional flange connections.

[0035] Furthermore, the second vent 202 and the third vent 203 of the vent component 2 are each equipped with a second male connector 204, and the first female connector 101 is compatible with the second male connector 204. Here, the standardization of the first female connector 101 and the second male connector 204 enables component interchangeability, ensures the sealing of each connection node, and improves the overall assembly efficiency of the device.

[0036] The second connecting pipe 3 has a second female connector 301 rotatably mounted at both ends, which is compatible with the second male connector 204. The bidirectional symmetrical interface design of the second female connector 301 and the second male connector 204 eliminates the installation difficulties caused by directional restrictions, allowing the pressure gauge 4 to be flexibly arranged according to the site space.

[0037] In this embodiment, the venting component 2 is a three-way valve, which utilizes a mature valve structure to achieve multi-directional airflow control, ensuring airtightness while reducing the production cost of customized components. Alternatively, the venting component 2 can also use a three-way connector. The bottom two ends of the three-way connector are provided with second female connectors 301 to facilitate connection with the first connecting pipe 1 and the second connecting pipe 3. The top of the third end is provided with an external thread, and the top opening of the three-way connector is sealed by screwing on a cap-shaped fixing cap. This also enables the pressure gauge 4 to be connected for pressure measurement and to vent the first connecting pipe 1 and the second connecting pipe 3 after measurement.

[0038] The pressure gauge 4 includes an interconnected air tube 401 and a gauge head 402. The detection end of the pressure gauge 4 is located at the bottom end of the air tube 401. The air tube 401 is provided with a third male connector 403, which is compatible with the second female connector 301. The third male connector 403 facilitates the quick assembly and disassembly of the pressure gauge 4 and the second connecting tube 3.

[0039] In addition, the convenient pressure-maintaining device for gas pipeline renovation of this utility model also includes a bracket 5 and a support plate 501. The bracket 5 is set on the ground; the support plate 501 is set on top of the bracket 5, and the pressure gauge 4 is detachably mounted on the support plate 501. The addition of the ground bracket 5 and the support plate 501 forms an independent support system, avoiding the stability problems of traditional handheld detection, freeing the operator's hands and improving the accuracy of readings, while reducing the risk of the gauge head 402 accidentally falling.

[0040] In this embodiment, the support plate 501 is arranged horizontally, and a hanging groove 502 is provided on the support plate 501. The width of the hanging groove 502 is greater than the diameter of the air pipe 401, and the width of the hanging groove 502 is less than the thickness of the meter head 402. Physical limiting achieves fixation-free suspension, which ensures the stability of the meter head 402 and achieves the quick operation characteristics of fixing when placed and disassembling when lifted.

[0041] In addition, the support frame 5 includes a telescopic assembly 503, a support plate 501 is located at the top of the telescopic assembly 503, and multiple support legs 504 are provided at the bottom of the telescopic assembly 503. The support legs are evenly arranged along the circumference of the telescopic assembly 503. The adjustable height adapts to different working conditions, and the multiple support legs 504 structure enhances the stability of the device on complex ground.

[0042] Finally, the telescopic assembly 503 includes a telescopic tube 505, a telescopic rod 506, and a locking bolt 507. The locking bolt 507 is screwed onto the telescopic tube 505, and a portion of the telescopic rod 506 is inserted into the telescopic tube 505. The locking bolt 507 can fix the telescopic rod 506 to the telescopic tube 505 by tightening it. The support leg 504 is located at the bottom of the telescopic tube 505, and the support plate 501 is located at the top of the telescopic rod 506. The mechanical adjustment scheme of the telescopic rod 506 and the locking bolt 507 provides a stepless height adjustment function to meet the usage needs of operators of different heights.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A convenient pressure-maintaining device for the modification of a gas pipeline (401), characterized in that, include: The first connecting pipe (1) is connected at one end to the vent of the gas pipeline (401); The venting component (2) includes a first vent (201), a second vent (202), and a third vent (203) that are interconnected. The first vent (201) can be locked and sealed. Either the second vent (202) or the third vent (203) can be detachably connected to the other end of the first connecting pipe (1). The first end of the second connecting pipe (3) is detachably connected to the other of the second air hole (202) and the third air hole (203); The pressure gauge (4) is connected to the tail end of the second connecting pipe (3).

2. The convenient pressure-maintaining device for gas pipeline (401) modification as described in claim 1, characterized in that: The first connecting pipe (1) is provided with a first female connector (101) at both ends, and a first male connector is provided at the vent of the gas pipe (401) network. The first male connector is compatible with the first female connector (101).

3. The convenient pressure-maintaining device for gas pipeline (401) modification as described in claim 2, characterized in that: The venting component (2) is provided with a second male connector (204) at both the second vent (202) and the third vent (203), and the first female connector (101) is adapted to the second male connector (204).

4. The convenient pressure-maintaining device for gas pipeline (401) modification as described in claim 3, characterized in that: The second connecting pipe (3) is provided with a second female connector (301) at both ends, and the second female connector (301) is adapted to the second male connector (204).

5. The convenient pressure-maintaining device for gas pipeline (401) modification as described in claim 4, characterized in that: The venting component (2) is a three-way valve.

6. The convenient pressure-maintaining device for gas pipeline (401) modification as described in claim 5, characterized in that: The pressure gauge (4) includes an air tube (401) and a gauge head (402) connected to each other. The detection end of the pressure gauge (4) is located at the bottom end of the air tube (401). A third male connector (403) is provided on the air tube (401), and the third male connector (403) is adapted to the second female connector (301).

7. The convenient pressure-maintaining device for gas pipeline (401) modification as described in claim 6, characterized in that, Also includes: The bracket (5) is placed on the ground; A support plate (501) is provided on the top of the bracket (5), and the pressure gauge (4) is detachably provided on the support plate (501).

8. The convenient pressure-maintaining device for gas pipeline (401) modification as described in claim 7, characterized in that: The support plate (501) is arranged horizontally, and the support plate (501) is provided with a hanging groove (502). The width of the hanging groove (502) is greater than the diameter of the air pipe (401), and the width of the hanging groove (502) is less than the thickness of the meter head (402).

9. The convenient pressure-maintaining device for gas pipeline (401) modification as described in claim 8, characterized in that: The bracket (5) includes a telescopic component (503), the support plate (501) is located at the top of the telescopic component (503), and the bottom of the telescopic component (503) is provided with multiple legs (504), which are evenly arranged around the circumference of the telescopic component (503).

10. The convenient pressure-maintaining device for gas pipeline (401) modification as described in claim 9, characterized in that: The telescopic assembly (503) includes a telescopic tube (505), a telescopic rod (506), and a locking bolt (507). The locking bolt (507) is screwed onto the telescopic tube (505). A portion of the telescopic rod (506) is inserted into the telescopic tube (505). The locking bolt (507) can fix the telescopic rod (506) to the telescopic tube (505) by pressing against the telescopic rod (506). The support leg (504) is located at the bottom of the telescopic tube (505), and the support plate (501) is located at the top of the telescopic rod (506).

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