An inlet gas pipeline protection box

Abstract

The utility model relates to a kind of gas pipeline protection box of introduction port, including mounting frame and box cover, mounting frame is fixed on the building outer wall at introduction port, box cover is covered on gas pipeline of introduction port, box cover includes mutually connected top plate, front side plate, left side plate and right side plate, warning retroreflective strip spacedly distributed on front side plate is equipped with, left side plate is hinged with mounting frame by more than two hinges, right side plate is equipped with with mounting frame matched anti-theft triangular lock, left side plate and right side plate are respectively equipped with ventilation louver, it has the advantages of simple structure, low cost, safe and reliable, strong practicality.

Description

Technical Field

[0001] This utility model relates to a protective box, specifically a protective box for a gas inlet pipeline. Background Technology

[0002] For urban gas pipeline networks, exposed inlet gas pipes inevitably exist where gas pipelines enter buildings from underground. Currently, no protective measures are taken for these types of gas pipelines, which means they are susceptible to damage from rain and sun exposure, affecting their lifespan and safety. Utility Model Content

[0003] The purpose of this utility model is to provide a gas pipeline inlet protection box, which has the advantages of simple structure, low cost, safety and reliability, and strong practicality.

[0004] To address the problems existing in the prior art, this utility model provides a protective box for a gas inlet pipe, including a mounting frame and a cover. The mounting frame is fixed to the exterior wall of the building at the inlet, and the cover covers the gas inlet pipe. The cover includes a top plate, a front plate, a left plate, and a right plate that are connected to each other. The front plate is provided with warning reflective strips that are spaced vertically. The left plate is hinged to the mounting frame by two or more hinges. The right plate is provided with an anti-theft triangular lock that cooperates with the mounting frame. Ventilation louvers are provided on the left and right plates respectively.

[0005] Furthermore, in this utility model, a gas pipeline inlet protection box is provided, wherein the right side plate of the box cover is provided with two or more positioning pins facing the mounting frame, and the mounting frame is provided with positioning holes that cooperate with the positioning pins.

[0006] Furthermore, this utility model provides a gas pipeline inlet protection box, wherein the mounting frame includes an inverted U-shaped back plate, and a horizontal brace is fixed between the lower ends of the two vertical plates of the back plate by stainless steel screws. The back plate is fixed to the exterior wall of the building at the inlet by expansion bolts.

[0007] Furthermore, in this utility model, a gas pipeline inlet protection box is provided, wherein the mounting frame and the box cover are both made of stainless steel.

[0008] Furthermore, the present invention provides a gas pipeline inlet protection box, which also includes a locking wrench that is matched with an anti-theft triangular lock, the locking wrench having a triangular head.

[0009] Furthermore, this utility model provides a gas pipeline inlet protection box, wherein the gas pipeline inlet includes an inlet ball valve, a ground gas pipe connector, and a household gas pipe connector. The inlet ball valve has a first flange and a second flange at its inlet and outlet ends, respectively. The lower end of the ground gas pipe connector is connected to the underground gas pipeline, and the upper end of the ground gas pipe connector has a third flange that is sealed to the first flange by bolts. The household gas pipe connector is L-shaped, and the horizontal section of the household gas pipe connector passes through the wall and connects to the gas pipeline installed in the building. The lower end of the vertical section of the household gas pipe connector has a fourth flange that is sealed to the second flange by bolts.

[0010] Furthermore, this utility model provides a gas pipeline inlet protection box, wherein the underground gas pipe connector and the household gas pipe connector are both prefabricated integrated welded pipe fittings in the factory. All welds of the underground gas pipe connector and the household gas pipe connector have undergone radiographic testing and the weld quality meets the requirements for safe use. The outer side of the underground gas pipe connector and the household gas pipe connector is provided with an anti-corrosion layer.

[0011] Furthermore, this utility model provides an inlet gas pipeline protection box, wherein the anti-corrosion layer comprises a fusion-bonded epoxy powder coating and a weather-resistant PE powder coating arranged from the inside out, the thickness of the fusion-bonded epoxy powder coating being greater than or equal to 400μm, and the thickness of the weather-resistant PE powder coating being greater than or equal to 500μm.

[0012] Furthermore, this utility model provides a gas pipeline inlet protection box, wherein a cleaning pipe joint is provided on the gas pipeline connector above ground, and a first anti-tampering plug is installed on the cleaning pipe joint; a pressure testing pipe joint is provided on the vertical section of the gas pipeline connector, and a second anti-tampering plug is provided on the pressure testing pipe joint.

[0013] Compared with existing technologies, this utility model provides a protective box for gas pipeline inlets, which has the following advantages: This utility model uses an installation frame and a cover. The installation frame is fixed to the exterior wall of the building at the inlet, and the cover covers the gas pipeline. The cover has interconnected top, front, left, and right panels. The front panel has vertically spaced reflective warning strips. The left panel is hinged to the installation frame via two or more hinges. The right panel has an anti-theft triangular lock that works with the installation frame. Ventilation louvers are provided on both the left and right panels. This constitutes a simple, low-cost, safe, reliable, and practical protective box for gas pipeline inlets. In practical applications, using this protective box to protect the gas pipeline inlet improves the safety, reliability, and service life of the gas pipeline. This utility model improves the convenience of assembling and disassembling the protective box by using an installation frame, improves the convenience of opening and closing the protective box by using a hinged cover, enhances the warning effect by using reflective warning strips, prevents unauthorized opening by using an anti-theft triangular lock, and ensures effective ventilation by using ventilation louvers.

[0014] The following detailed description of the inlet gas pipeline protection box of this utility model, with reference to the accompanying drawings, illustrates the specific embodiments. Attached Figure Description

[0015] Figure 1 This is a front view of a gas pipeline inlet protection box according to the present invention;

[0016] Figure 2 This is a left view of a gas pipeline inlet protection box according to the present invention;

[0017] Figure 3 This is a right view of a gas pipeline inlet protection box according to the present invention;

[0018] Figure 4 This utility model provides an isometric view of an inlet gas pipeline protection box. Figure 1 ;

[0019] Figure 5 This utility model provides an isometric view of an inlet gas pipeline protection box. Figure 2 ;

[0020] Figure 6 This is an isometric view of the unlocking wrench in this utility model;

[0021] Figure 7 This is a schematic diagram illustrating the usage status of the inlet gas pipeline protection box of this utility model;

[0022] Figure 8 This is a schematic diagram of the gas inlet pipe in this utility model. Detailed Implementation

[0023] First, it should be noted that the directional terms such as up, down, left, right, front, and back mentioned in this utility model are only descriptions based on the accompanying drawings for ease of understanding, and are not intended to limit the technical solution or the scope of protection claimed in this utility model.

[0024] like Figures 1 to 8 The present invention discloses a specific embodiment of a gas inlet pipeline protection box, comprising a mounting frame 1 and a cover 2. The mounting frame 1 is fixed to the exterior wall of the building at the inlet. The cover 2 covers the gas inlet pipeline and has interconnected top plate 21, front side plate 22, left side plate 23, and right side plate 24. The front side plate 22 has vertically spaced warning reflective strips 25. The left side plate 23 is hinged to the mounting frame 1 via two or more hinges 3. The right side plate 24 has an anti-theft triangular lock 26 that cooperates with the mounting frame 1. Ventilation louvers 27 are respectively provided on the left side plate 23 and the right side plate 24. This configuration constitutes a gas inlet pipeline protection box that is simple in structure, low in cost, safe, reliable, and highly practical. In practical applications, using the protection box to protect the gas inlet pipeline improves the safety, reliability, and service life of the gas pipeline. This utility model improves the convenience of disassembling and assembling the protective box by setting an installation frame 1, improves the convenience of opening and closing the protective box by setting a hinged box cover 2, improves the warning effect by setting a warning reflective strip 25 to prevent unauthorized contact and damage by irrelevant personnel, prevents the protective box from being opened without authorization by setting an anti-theft triangular lock 26 to prevent it from being damaged by human intervention, and ensures the ventilation effect of the protective box by setting a ventilation louver.

[0025] In a specific embodiment, this invention provides two or more positioning pins 28 facing the mounting frame 1 on the right side plate 24 of the cover 2. Correspondingly, positioning holes that mate with the positioning pins 28 are provided on the mounting frame 1. This arrangement, when the cover 2 is closed, allows the positioning pins 28 to insert into the corresponding positioning holes, providing a certain degree of support to prevent uneven deformation of the cover 2 and improving structural stability and service life. In another specific embodiment, this invention employs the following structure for the mounting frame 1: an inverted U-shaped back plate 11 is provided, and a cross brace 13 is fixed between the lower ends of the two vertical plates of the back plate 11 using stainless steel screws 12. The back plate 11 is fixed to the exterior wall of the building at the inlet using expansion bolts. This mounting frame 1 features a simple structure, easy processing, and convenient assembly and disassembly. In practical applications, to improve the rust prevention and corrosion resistance of the protective box, this invention typically uses stainless steel for both the mounting frame 1 and the cover 2. Meanwhile, this utility model also provides a locking wrench 4 that matches the anti-theft triangular lock 26, and the locking wrench 4 is equipped with a triangular head 41 that matches the anti-theft triangular lock 26, so that the box cover 2 can be opened quickly by the locking wrench 4.

[0026] In a specific implementation, this utility model adopts the following configuration for the inlet gas pipeline: it includes an inlet ball valve 5, an underground gas pipe connector 6, and a household gas pipe connector 7. A first flange 51 and a second flange 52 are respectively installed at the inlet and outlet ends of the inlet ball valve 5, allowing the lower end of the underground gas pipe connector 6 to connect to the buried gas pipeline. A third flange 61, sealed to the first flange 51 by connecting bolts, is installed at the upper end of the underground gas pipe connector 6. The household gas pipe connector 7 adopts an L-shaped structure, allowing its horizontal section to pass through the wall and connect to the gas pipeline installed in the building. A fourth flange 71, sealed to the second flange 52 by connecting bolts, is installed at the lower end of the vertical section of the household gas pipe connector 7. This configuration of the inlet gas pipeline features a simple structure, convenient assembly and disassembly, and a high degree of standardization. In a specific implementation, this utility model uses prefabricated integrated welded pipe fittings for both the underground gas pipe connector 6 and the household gas pipe connector 7. All welds on both the underground gas pipe connector 6 and the household gas pipe connector 7 undergo radiographic testing, and the weld quality meets safety requirements. Both the underground gas pipe connector 6 and the household gas pipe connector 7 have an anti-corrosion layer on their outer surfaces. This design ensures welding quality through comprehensive radiographic testing of the welds and guarantees anti-corrosion effectiveness through standardized overall anti-corrosion treatment of the welded parts. This avoids safety hazards caused by incomplete welding and improves the anti-corrosion effect, ensuring the service life of the inlet valve and pipe fittings.

[0027] In a specific embodiment, this invention provides an anti-corrosion layer consisting of a fusion-bonded epoxy powder coating and a weather-resistant PE powder coating arranged from the inside out. The thickness of the fusion-bonded epoxy powder coating is greater than or equal to 400 μm, and the thickness of the weather-resistant PE powder coating is greater than or equal to 500 μm. This anti-corrosion layer has the advantages of simple structure, easy construction, and good anti-corrosion effect. In another specific embodiment, this invention also provides a cleaning pipe connector 62 on the underground gas pipe connector 6 at a position above ground, and installs a first anti-tampering plug 63 on the cleaning pipe connector 62; similarly, a pressure testing pipe connector 72 is provided on the vertical pipe section of the household gas pipe connector 7, and a second anti-tampering plug 73 is provided on the pressure testing pipe connector 72. This setup, through the cleaning pipe connector 62, allows for the insertion of a gas ball into the underground gas pipe connector 6 when needed. The ball is then inflated to cut off the pipeline before the inlet valve, facilitating valve replacement or maintenance of other components. This improves the convenience of maintenance operations. Similarly, by installing a pressure testing pipe connector 72, a pressure gauge can be connected to monitor the pressure holding status of the user pipe and gas appliances downstream of the inlet ball valve outlet. The pressure holding status can then be used to determine if there is a leak, further enhancing the convenience of maintenance operations.

[0028] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications made by those skilled in the art based on the technical solution of the present utility model without departing from the design concept of the present utility model shall fall within the scope of protection defined by the claims of the present utility model.

Claims

1. A gas pipeline inlet protection box, characterized in that, The device includes an installation frame (1) and a cover (2). The installation frame (1) is fixed to the exterior wall of the building at the inlet. The cover (2) covers the gas pipeline at the inlet. The cover (2) includes a top plate (21), a front side plate (22), a left side plate (23), and a right side plate (24) that are connected to each other. The front side plate (22) is provided with warning reflective strips (25) that are spaced vertically. The left side plate (23) is hinged to the installation frame (1) by two or more hinges (3). The right side plate (24) is provided with an anti-theft triangular lock (26) that cooperates with the installation frame (1). The left side plate (23) and the right side plate (24) are respectively provided with ventilation louvers (27).

2. The inlet gas pipeline protection box according to claim 1, characterized in that, The right side plate (24) of the box cover (2) is provided with two or more positioning pins (28) facing the mounting frame (1), and the mounting frame (1) is provided with positioning holes that cooperate with the positioning pins (28).

3. The inlet gas pipeline protection box according to claim 2, characterized in that, The mounting frame (1) includes an inverted U-shaped back plate (11), and a cross brace (13) is fixed between the lower ends of the two vertical plates of the back plate (11) by stainless steel screws (12). The back plate (11) is fixed to the exterior wall of the building at the inlet by expansion bolts.

4. The inlet gas pipeline protection box according to claim 3, characterized in that, The mounting frame (1) and the box cover (2) are both made of stainless steel.

5. A gas pipeline inlet protection box according to claim 4, characterized in that, It also includes a lock wrench (4) that is matched with the anti-theft triangular lock (26), and the lock wrench (4) is equipped with a triangular head (41).

6. The inlet gas pipeline protection box according to claim 1, characterized in that, The inlet gas pipeline includes an inlet ball valve (5), an underground gas pipe connector (6), and an inlet gas pipe connector (7). The inlet ball valve (5) has a first flange (51) and a second flange (52) at its inlet and outlet ends, respectively. The lower end of the underground gas pipe connector (6) is connected to the underground gas pipeline. The upper end of the underground gas pipe connector (6) is provided with a third flange (61) that is sealed to the first flange (51) by bolts. The inlet gas pipe connector (7) is L-shaped. The horizontal pipe section of the inlet gas pipe connector (7) passes through the wall and is connected to the gas pipeline installed in the building. The lower end of the vertical pipe section of the inlet gas pipe connector (7) is provided with a fourth flange (71) that is sealed to the second flange (52) by bolts.

7. A gas pipeline inlet protection box according to claim 6, characterized in that, The underground gas pipe connector (6) and the household gas pipe connector (7) are both prefabricated integrated welded pipe fittings in the factory. All welds of the underground gas pipe connector (6) and the household gas pipe connector (7) have been radiographically inspected and the weld quality meets the requirements for safe use. The outer side of the underground gas pipe connector (6) and the household gas pipe connector (7) are provided with an anti-corrosion layer.

8. A gas pipeline inlet protection box according to claim 7, characterized in that, The anti-corrosion layer includes a fusion-bonded epoxy powder coating and a weather-resistant PE powder coating arranged from the inside out. The thickness of the fusion-bonded epoxy powder coating is greater than or equal to 400 μm, and the thickness of the weather-resistant PE powder coating is greater than or equal to 500 μm.

9. A gas pipeline inlet protection box according to claim 7, characterized in that, The gas pipe connector (6) is provided with a cleaning pipe joint (62) at a position on the ground. The cleaning pipe joint (62) is equipped with a first anti-dismantling plug (63). The gas pipe connector (7) is provided with a pressure testing pipe joint (72) on the vertical pipe section. The pressure testing pipe joint (72) is provided with a second anti-dismantling plug (73).

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