Gas pipe network tail end pressure monitoring device

Abstract

The utility model discloses a gas pipe network tail end pressure monitoring device which comprises a gas home-entry pipe, the middle end of the top of the gas home-entry pipe is fixedly connected with a fixed seat, and the middle end of the top of the fixed seat is fixedly connected with a mounting cylinder. According to the utility model, through the arrangement of the gas pressure gauge, the gas pressure in the gas home-entry pipe can be monitored at the tail end of a gas pipe network, and through the arrangement of the fixing sleeve and the protective shell, good protection can be formed around the gas pressure gauge, so that the gas pressure gauge is prevented from being damaged due to collision in the use process; through arrangement of a rotating rod, a second gear, a fixed seat, a gear ring, a first gear, a screw rod, a partition plate, a movable transverse plate and a sealing cover, the pressure monitoring work of the gas pressure gauge can be safely carried out in the process of disassembling the gas pressure gauge by personnel; and the bottom of the mounting cylinder and the periphery of the monitoring end of the gas pressure gauge are effectively sealed.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pressure monitoring, in particular to a gas pipeline network end pressure monitoring device. Background Technique

[0002] The end of the gas pipeline network refers to the farthest part of the urban gas pipeline network system, that is, the position from the gate station or gas source plant to the last node in the user's home. This part is an indispensable part of the entire gas pipeline network system because it is directly related to whether the gas can be safely and effectively transported to each user's home. In the end of the gas pipeline network, a gas pressure gauge is usually used for pressure monitoring to ensure the quality and safety of gas supply. At present, in the process of pressure monitoring of the end of the gas pipeline network, due to the lack of collision protection effect around the gas pressure gauge, it is easily damaged by direct collision of objects. At the same time, when personnel disassemble and replace the gas pressure gauge, it is often necessary to close the gas valve, and since there is often a certain amount of gas remaining in the pipeline network and it leaks during the process of personnel disassembling the gas pressure gauge, it affects the safety of personnel maintenance and replacement operations. Content of the Utility Model

[0003] The purpose of the utility model is to provide a gas pipeline network end pressure monitoring device, which has the advantages of improving the collision protection effect, effectively avoiding the leakage of the gas remaining in the pipeline network during the maintenance and replacement operation of personnel, and improving the safety of personnel operation.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A gas pipeline network end pressure monitoring device, including a gas inlet pipe, the middle of the top of the gas inlet pipe is fixedly connected with a fixed seat, the middle of the top of the fixed seat is fixedly connected with an installation cylinder, the inner cavity of the installation cylinder is threadedly connected with a gas pressure gauge, the middle of the outer surface of the installation cylinder is movably connected with a toothed ring through a bearing, the lower end of the outer surface of the installation cylinder and the upper end of the inner cavity of the fixed seat are fixedly connected with a partition plate, both ends of the partition plate and both ends of the top of the inner cavity of the fixed seat are movably connected with a screw rod through a bearing, the upper end of the screw rod is fixedly installed with a first gear, the lower end of the screw rod is threadedly connected with a moving cross plate, a sealing cover is fixedly connected between the sides of the two moving cross plates close to each other, the top of the fixed seat and in front of the installation cylinder is movably connected with a rotating rod through a bearing, the bottom of the rotating rod is fixedly installed with a second gear, the top of the outer surface of the fixed seat is fixedly connected with a fixed sleeve, and the surface of the fixed sleeve is threadedly connected with a protective shell.

[0005] As a preferred solution, the first gear meshes with the toothed ring, and the second gear meshes with the toothed ring.

[0006] As a preferred solution, a turntable is fixedly connected to the top of the outer surface of the protective shell, a transparent observation plate is fixedly connected to the front surface of the protective shell, a rubber protective strip is fixedly connected to the outer surface of the protective shell, and flange plates are fixedly connected to both sides of the gas inlet pipe.

[0007] As a preferred solution, a knob is fixedly connected to the top of the rotating rod, a support shaft is fixedly installed at the bottom of the second gear, and the bottom of the support shaft is movably connected to the top of the partition plate through a bearing.

[0008] As a preferred solution, L-shaped support plates are fixedly connected to both ends of the bottom of the partition plate, and the bottom of the screw rod is movably connected to the lower end of the L-shaped support plate through a bearing.

[0009] As a preferred solution, a first rubber gasket is fixedly connected to the lower end of the gas pressure gauge, the bottom of the first rubber gasket is movably connected to the top of the installation cylinder, and a second rubber gasket is fixedly connected to the bottom of the installation cylinder.

[0010] As a preferred solution, a rubber sealing ring is fixedly connected to the top of the fixed seat and in front of the installation cylinder, and the surface of the rotating rod is movably connected to the surface of the rubber sealing ring.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. Through the setting of the gas pressure gauge, the present utility model can monitor the gas pressure inside the gas inlet pipe at the end of the gas pipeline network. Through the settings of the fixed sleeve and the protective shell, a good protection can be formed around the gas pressure gauge, avoiding damage caused by collision during the use of the gas pressure gauge, ensuring the safe progress of the pressure monitoring work of the gas pressure gauge. Through the settings of the rotating rod, the second gear, the fixed seat, the toothed ring, the first gear, the screw rod, the partition plate, the moving cross plate and the sealing cover, during the process of personnel disassembling the gas pressure gauge, the bottom of the installation cylinder can be effectively sealed, avoiding the gas remaining inside the gas inlet pipe from overflowing from the inside of the installation cylinder, thereby improving the safety of the personnel's disassembly and replacement operation and facilitating the personnel to use.

[0013] 2. The utility model is provided with a turntable, which facilitates manual rotation when personnel disassemble the protective shell. Through the arrangement of the transparent observation plate, it is convenient for personnel to observe the index of the gas pressure gauge inside the protective shell. Through the arrangement of the rubber protection strip, good collision protection can be formed around the protective shell. Through the arrangement of the flange, it is convenient for personnel to install and dock the gas inlet pipe with bolts. Through the arrangement of the knob, it is convenient for personnel to operate the rotating rod to rotate. Through the arrangement of the support shaft, the purpose of supporting the bottom of the second gear is achieved, avoiding the inclination of the second gear due to force. Through the arrangement of the L-shaped support plate, the purpose of supporting the bottom of the screw is achieved, avoiding the inclination of the screw due to rotational force. Through the arrangement of the first rubber gasket, the sealing performance of the contact between the gas pressure gauge and the installation cylinder is effectively improved. Through the arrangement of the second rubber gasket, the sealing performance of the contact between the sealing cover and the installation cylinder is effectively improved. Through the arrangement of the rubber sealing ring, the sealing performance of the contact between the rotating rod and the fixed seat is effectively improved. Description of the Drawings

[0014] Figure 1 is a three-dimensional view of the utility model;

[0015] Figure 2 is a front sectional structural schematic diagram of the protective shell of the utility model;

[0016] Figure 3 is a front sectional structural schematic diagram of the fixed seat of the utility model;

[0017] Figure 4 is a right sectional structural schematic diagram of the fixed seat of the utility model.

[0018] In the figure: 1. Gas inlet pipe; 2. Transparent observation plate; 3. Flange; 4. Turntable; 5. Rubber protection strip; 6. Protective shell; 7. Fixed seat; 8. Knob; 9. Rotating rod; 10. Fixed sleeve; 11. Gas pressure gauge; 12. First rubber gasket; 13. Installation cylinder; 14. Tooth ring; 15. First gear; 16. Partition; 17. L-shaped support plate; 18. Screw; 19. Moving cross plate; 20. Sealing cover; 21. Second rubber gasket; 22. Rubber sealing ring; 23. Second gear; 24. Support shaft. Detailed Embodiment

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Secondly, the so-called "one embodiment" or "embodiment" herein refers to specific features, structures or characteristics that may be included in at least one implementation manner of the present utility model. The "in one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it an individual or alternative embodiment that is mutually exclusive with other embodiments.

[0021] Embodiment 1:

[0022] Please refer to Figures 1-4 As shown, the present utility model provides a gas pipeline network end pressure monitoring device, including a gas inlet pipe 1. The middle end of the top of the gas inlet pipe 1 is fixedly connected with a fixed seat 7. The middle end of the top of the fixed seat 7 is fixedly connected with an installation cylinder 13. A gas pressure gauge 11 is threadedly connected to the inner cavity of the installation cylinder 13. The middle end of the outer surface of the installation cylinder 13 is movably connected with a toothed ring 14 through a bearing. A partition plate 16 is fixedly connected between the lower end of the outer surface of the installation cylinder 13 and the upper end of the inner cavity of the fixed seat 7. Screws 18 are movably connected to both ends of the partition plate 16 and the two ends of the top of the inner cavity of the fixed seat 7 through bearings. A first gear 15 is fixedly installed at the upper end of the screw 18. A moving cross plate 19 is threadedly connected to the lower end of the screw 18. A sealing cover 20 is fixedly connected between the sides of the two moving cross plates 19 that are close to each other. The top of the fixed seat 7 and in front of the installation cylinder 13 is movably connected with a rotating rod 9 through a bearing. A second gear 23 is fixedly installed at the bottom of the rotating rod 9. A fixed sleeve 10 is fixedly connected to the top of the outer surface of the fixed seat 7. A protective shell 6 is threadedly connected to the surface of the fixed sleeve 10.

[0023] In this technical solution, through the setting of the gas pressure gauge 11, the gas pressure inside the gas inlet pipe 1 can be monitored at the end of the gas pipeline network. Through the setting of the fixed sleeve 10 and the protective shell 6, a good protection can be formed around the gas pressure gauge 11, avoiding damage to the gas pressure gauge 11 caused by collision during use, and ensuring the safe progress of the pressure monitoring work of the gas pressure gauge 11. Through the setting of the rotating rod 9, the second gear 23, the fixed seat 7, the toothed ring 14, the first gear 15, the screw 18, the partition plate 16, the moving cross plate 19 and the sealing cover 20, the bottom of the installation cylinder 13 can be effectively sealed during the process of personnel disassembling the gas pressure gauge 11, avoiding the gas remaining inside the gas inlet pipe 1 from overflowing from the inside of the installation cylinder 13, thereby improving the safety of the personnel's disassembly and replacement operations and facilitating the personnel to use.

[0024] Embodiment 2:

[0025] On the basis of Embodiment 1, the present utility model is as Figures 1-4As shown, it is disclosed that the first gear 15 meshes with the gear ring 14, the second gear 23 meshes with the gear ring 14, a turntable 4 is fixedly connected to the top of the outer surface of the protective shell 6, a transparent observation plate 2 is fixedly connected to the front surface of the protective shell 6, a rubber protective strip 5 is fixedly connected to the outer surface of the protective shell 6, flange plates 3 are fixedly connected to both sides of the gas inlet pipe 1, a knob 8 is fixedly connected to the top of the rotating rod 9, a support shaft 24 is fixedly installed at the bottom of the second gear 23, and the bottom of the support shaft 24 is movably connected to the top of the partition plate 16 through a bearing. Both ends of the bottom of the partition plate 16 are fixedly connected with L-shaped support plates 17. The bottom of the screw rod 18 is movably connected to the lower end of the L-shaped support plate 17 through a bearing. The lower end of the gas pressure gauge 11 is fixedly connected with a first rubber gasket 12. The bottom of the first rubber gasket 12 is movably connected to the top of the installation cylinder 13. The bottom of the installation cylinder 13 is fixedly connected with a second rubber gasket 21. A rubber sealing ring 22 is fixedly connected to the top of the fixed seat 7 and in front of the installation cylinder 13. The surface of the rotating rod 9 is movably connected to the surface of the rubber sealing ring 22.

[0026] In this technical solution, through the setting of the turntable 4, it is convenient for personnel to manually rotate when disassembling the protective shell 6. Through the setting of the transparent observation plate 2, it is convenient for personnel to observe the index of the gas pressure gauge 11 inside the protective shell 6. Through the setting of the rubber protective strip 5, good collision protection can be formed around the protective shell 6. Through the setting of the flange plates 3, it is convenient for personnel to install and dock the gas inlet pipe 1 with bolts. Through the setting of the knob 8, it is convenient for personnel to operate the rotating rod 9 to rotate. Through the setting of the support shaft 24, the purpose of supporting the bottom of the second gear 23 is achieved, avoiding the inclination of the second gear 23 due to force. Through the setting of the L-shaped support plate 17, the purpose of supporting the bottom of the screw rod 18 is achieved, avoiding the inclination of the screw rod 18 due to rotational force. Through the setting of the first rubber gasket 12, the sealing performance of the contact between the gas pressure gauge 11 and the installation cylinder 13 is effectively improved. Through the setting of the second rubber gasket 21, the sealing performance of the contact between the sealing cover 20 and the installation cylinder 13 is effectively improved. Through the setting of the rubber sealing ring 22, the sealing performance of the contact between the rotating rod 9 and the fixed seat 7 is effectively improved.

[0027] The working principle of the present utility model is as follows: Through the setting of the gas pressure gauge 11, the gas pressure inside the gas inlet pipe 1 can be monitored at the end of the gas pipeline network. And through the setting of the fixing sleeve 10 and the protective shell 6, a good protection can be formed around the gas pressure gauge 11, avoiding damage to the gas pressure gauge 11 caused by collision during use, ensuring the safe progress of the pressure monitoring work of the gas pressure gauge 11. And when it is necessary to disassemble, replace and maintain the gas pressure gauge 11, by rotating the protective shell 6, it can be disassembled from the thread on the fixing sleeve 10. At the same time, by manipulating the rotating rod 9 and the second gear 23 to rotate along the bearing on the fixed seat 7, the rotation of the second gear 23 can drive the toothed ring 14 to rotate, and the rotation of the toothed ring 14 can drive the first gear 15 and the screw rod 18 to rotate along the bearing on the partition plate 16. The rotation of the screw rod 18 can drive the moving cross plate 19 and the sealing cover 20 to move upward until the top of the sealing cover 20 is in close contact with the bottom of the installation cylinder 13, so that during the process of the personnel disassembling the gas pressure gauge 11, the bottom of the installation cylinder 13 can be effectively sealed, avoiding the gas remaining inside the gas inlet pipe 1 from overflowing from the inside of the installation cylinder 13, thereby improving the safety of the personnel's disassembly and replacement operations and being conducive to the personnel's use.

[0028] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible on the premise of substantially not deviating from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various components, and parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature, number or position of discrete elements can be changed or altered. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structure that performs the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0029] In addition, to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. The end pressure monitoring device for a gas pipeline network, including a gas inlet pipe (1), is characterized in that: A fixing seat (7) is fixedly connected to the middle end of the top of the gas inlet pipe (1). An installation cylinder (13) is fixedly connected to the middle end of the top of the fixing seat (7). A gas pressure gauge (11) is threadedly connected to the inner cavity of the installation cylinder (13). A toothed ring (14) is movably connected to the middle end of the outer surface of the installation cylinder (13) through a bearing. A partition plate (16) is fixedly connected between the lower end of the outer surface of the installation cylinder (13) and the upper end of the inner cavity of the fixing seat (7). Screws (18) are movably connected to both ends between the two ends of the partition plate (16) and the top of the inner cavity of the fixing seat (7) through bearings. A first gear (15) is fixedly installed at the upper end of the screw (18). A moving cross plate (19) is threadedly connected to the lower end of the screw (18). A sealing cover (20) is fixedly connected between the sides of the two moving cross plates (19) close to each other. A rotating rod (9) is movably connected to the top of the fixing seat (7) and in front of the installation cylinder (13) through a bearing. A second gear (23) is fixedly installed at the bottom of the rotating rod (9). A fixing sleeve (10) is fixedly connected to the top of the outer surface of the fixing seat (7). A protective shell (6) is threadedly connected to the surface of the fixing sleeve (10).

2. The end pressure monitoring device for a gas pipeline network according to claim 1, characterized in that: The first gear (15) meshes with the toothed ring (14), and the second gear (23) meshes with the toothed ring (14).

3. The end pressure monitoring device for a gas pipeline network according to claim 1, characterized in that: A turntable (4) is fixedly connected to the top of the outer surface of the protective shell (6). A transparent observation plate (2) is fixedly connected to the front surface of the protective shell (6). A rubber protective strip (5) is fixedly connected to the outer surface of the protective shell (6). Flange plates (3) are fixedly connected to both sides of the gas inlet pipe (1).

4. The end pressure monitoring device for a gas pipeline network according to claim 1, characterized in that: A knob (8) is fixedly connected to the top of the rotating rod (9). A support shaft (24) is fixedly installed at the bottom of the second gear (23). The bottom of the support shaft (24) is movably connected to the top of the partition plate (16) through a bearing.

5. The end pressure monitoring device for a gas pipeline network according to claim 1, characterized in that: L-shaped support plates (17) are fixedly connected to both ends of the bottom of the partition plate (16). The bottom of the screw (18) is movably connected to the lower end of the L-shaped support plate (17) through a bearing.

6. The end pressure monitoring device for a gas pipeline network according to claim 1, characterized in that: A first rubber sealing gasket (12) is fixedly connected to the lower end of the gas pressure gauge (11). The bottom of the first rubber sealing gasket (12) is movably connected to the top of the installation cylinder (13). A second rubber sealing gasket (21) is fixedly connected to the bottom of the installation cylinder (13).

7. The end pressure monitoring device for a gas pipeline network according to claim 1, characterized in that: A rubber sealing ring (22) is fixedly connected to the top of the fixing seat (7) and in front of the installation cylinder (13). The surface of the rotating rod (9) is movably connected to the surface of the rubber sealing ring (22).

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