Urban gas pipeline emptying device

Abstract

The utility model provides an urban gas pipeline emptying device, which belongs to the technical field of gas pipelines, and comprises a connecting pipe, a valve, a supporting structure, a rotating component, a supporting plate and an extension pipe, the valve is mounted on one side of the connecting pipe, a connecting flange is mounted on one side of the valve, the rotating component is mounted at the bottom end of the connecting pipe, and the supporting plate is fixed on one side of a solenoid. The extension pipe is fixed to the top end of the connecting pipe, the sleeve is slidably connected to the top end of the extension pipe, an electric fire maker is installed on one side of the sleeve, a flow deflector is fixed into the top end of the sleeve, and the extension structures are arranged on the two sides of the sleeve. According to the utility model, the rotating block is pushed to rotate to enable the outer pipe to be vertically downward, and the screw pipe is rotated to enable the supporting plate to be in contact with the ground for supporting, so that the position supporting function of the device is realized, the stability of the device is enhanced, shaking caused by external factors such as wind power, vibration and the like is effectively reduced, the stress at the joint is reduced, and the risk of loosening or fracture is avoided.

Description

Technical Field

[0001] This utility model relates to the field of gas pipeline technology, specifically to a gas pipeline venting device for urban areas. Background Technology

[0002] During gas transmission, if pipeline damage or maintenance is required, upstream and downstream valves must be closed, and the residual natural gas in the pipeline must be released using the town gas pipeline venting device to reduce the consequences of accidents, minimize property damage, and facilitate pipeline maintenance.

[0003] Chinese patent CN211649836U discloses a gas pipeline venting device for urban areas, including an outer cylinder. A through pipe is fixedly embedded on the upper surface of the outer cylinder, and the inner wall of the through pipe is threaded. An exhaust pipe is placed above the outer cylinder, with its bottom end penetrating the through pipe and extending into the interior of the outer cylinder. The outer surface of the exhaust pipe is threaded, and the outer surface of the exhaust pipe is threaded to the inner wall of the through pipe. This gas pipeline venting device allows the exhaust pipe to drive a sliding plate to slide within a circular groove. Because the sliding plate slides in a circular motion within the groove, combined with the threads on the outside of the exhaust pipe and the threads on the inner wall of the through pipe, workers can adjust the exhaust pipe by rotating it. This adjustment allows for the storage of the exhaust pipe, effectively avoiding the problem of the gas venting device lacking storage capacity, which would cause difficulties for workers during transport or handling.

[0004] The aforementioned patent still has the following shortcomings: it has the defect of unstable device placement. Since the device is directly connected to the gas pipeline and there is no support at the bottom, the connection between the device and the pipeline is prone to excessive stress, which can easily cause the connection to loosen or even break, resulting in gas leakage. This can not only cause a large amount of gas to escape and waste energy, but may also cause serious safety accidents such as fire and explosion. Utility Model Content

[0005] This invention provides a venting device for urban gas pipelines, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] An embodiment of this utility model provides a venting device for urban gas pipelines, including a connecting pipe, and further comprising:

[0008] A valve is installed on one side of the connecting pipe, and a connecting flange is installed on one side of the valve;

[0009] A support structure is provided at the bottom end of the connecting pipe, wherein the support structure includes a rotating component installed at the bottom end of the connecting pipe, an outer pipe installed on one side of the rotating component, a threaded pipe threaded inside the outer pipe, and a support plate fixed on one side of the threaded pipe;

[0010] An extension tube is fixed to the top of the connecting tube, and a return spring is installed inside the extension tube. A baffle is installed at the bottom of the return spring, and a flame arrestor core is fixed at the top inside the extension tube.

[0011] A sleeve is slidably connected to the top end of an extension tube, and an electric sparker is installed on one side of the sleeve. A guide vane is fixed inside the top end of the sleeve.

[0012] The extension structure, located on both sides of the sleeve, is used to adjust the height of the sleeve.

[0013] The above technical solution controls the flow of gas through valves, while the support structure provides stable support for the entire device. An electric igniter is used to ignite the vented gas, and a flame arrestor prevents the flame from backflashing. An extension structure is used to adjust the height of the sleeve to meet different needs.

[0014] Furthermore, the rotating assembly includes a rotating seat installed at the bottom of the connecting pipe, a rotating block rotatably connected inside the rotating seat, positioning blocks fixed on both sides of the rotating block, a storage groove opened on one side inside the rotating seat, and a support groove opened at the bottom inside the rotating seat.

[0015] The above technical solution involves pushing the rotating block to rotate so that the outer tube is vertically downward, rotating the spiral tube so that the support plate contacts the ground for support, thereby adapting to uneven ground or specific operational needs.

[0016] Furthermore, the positioning blocks form an engaging structure between the storage slot and the support slot, and the storage slots are symmetrically distributed on the vertical center line of the rotating seat.

[0017] The above technical solution allows for the engagement structure of the positioning block with the storage groove and support groove, facilitating the adjustment and locking of the position of the outer tube.

[0018] Furthermore, the outer wall of the spiral tube is provided with an external thread, and one side of the inner side of the outer tube is provided with an internal thread that mates with the external thread.

[0019] Through the above technical solution, the internal and external threads of the spiral tube and the outer tube are matched to achieve precise adjustment of the support height.

[0020] Furthermore, the extension structure includes slide rails fixed on both sides of the extension tube, connecting brackets fixed on both sides of the sleeve, a sliding sleeve installed at the bottom of one side of the connecting bracket and slidably connected to the slide rail, a pressure roller rotatably connected inside the sliding sleeve, a pressure rod fixed at the bottom of the pressure roller on one side, and a friction pad fixed on one side of the slide rail.

[0021] The above technical solution adjusts the height of the sleeve by sliding the sleeve on the outside of the slide rail, and locks the position between the sleeve and the slide rail by pushing the pressure roller to contact the friction pad.

[0022] Furthermore, the slide rail and the slide sleeve form a sliding structure, and the slide sleeve is connected to the sleeve through a connecting bracket.

[0023] The above technical solution enables flexible adjustment of the casing height, ensuring that the venting operation can adapt to different working conditions.

[0024] The above-described solution of this utility model has at least the following beneficial effects:

[0025] 1. This utility model achieves the positional support function of the device by pushing the rotating block to rotate so that the outer tube is vertically downward, and rotating the screw tube so that the support plate contacts the ground for support. This enhances the stability of the device, effectively reduces swaying caused by external factors such as wind and vibration, reduces the stress at the connection, and avoids the risk of loosening or breakage.

[0026] 2. This utility model adjusts the height of the sleeve by sliding the sleeve on the outside of the slide rail and locking the height of the sleeve by pushing the pressure roller. This realizes the height adjustment function of the device, adapts to different working conditions and site environments, and ensures the safety and effectiveness of venting operations. For example, it can be flexibly adjusted according to wind direction or terrain to avoid gas accumulation. Attached Figure Description

[0027] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0028] Figure 2 This is the second schematic diagram of the structure of this utility model;

[0029] Figure 3 A three-dimensional cross-sectional structural diagram of the extension structure provided by this utility model;

[0030] Figure 4 A three-dimensional cross-sectional structural diagram of the support structure provided by this utility model;

[0031] Figure 5 Provided by this utility model Figure 1 A magnified schematic diagram of a partial cross-section at point A in the middle.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Connecting pipe; 2. Extension pipe; 3. Extension structure; 301. Slide rail; 302. Sliding sleeve; 303. Connecting frame; 304. Friction pad; 305. Pressure roller; 306. Pressure rod; 4. Sleeve; 5. Electric igniter; 6. Valve; 7. Connecting flange; 8. Support structure; 801. Spiral tube; 802. Rotating block; 803. Positioning block; 804. Rotating seat; 805. Outer tube; 806. Support plate; 807. Storage groove; 808. Support groove; 9. Flame arrestor core; 10. Guide plate; 11. Return spring; 12. Baffle plate. Detailed Implementation

[0034] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0035] like Figures 1 to 5 As shown, an embodiment of this utility model provides a town gas pipeline venting device, including a connecting pipe 1, and further comprising:

[0036] Valve 6 is installed on one side of connecting pipe 1, and a connecting flange 7 is installed on one side of valve 6;

[0037] The support structure 8 is provided at the bottom end of the connecting pipe 1. The support structure 8 includes a rotating component installed at the bottom end of the connecting pipe 1, an outer pipe 805 installed on one side of the rotating component, a threaded pipe 801 threaded inside the outer pipe 805, and a support plate 806 fixed on one side of the threaded pipe 801.

[0038] Extension tube 2 is fixed to the top of connecting tube 1, and a return spring 11 is installed inside the extension tube 2. A baffle 12 is installed at the bottom of the return spring 11, and a flame arrestor core 9 is fixed inside the top of the extension tube 2.

[0039] The sleeve 4 is slidably connected to the top end of the extension tube 2, and an electric sparker 5 is installed on one side of the sleeve 4. A guide plate 10 is fixed inside the top end of the sleeve 4.

[0040] Extension structure 3 is provided on both sides of sleeve 4 and is used to adjust the height of sleeve 4.

[0041] In this embodiment of the utility model, gas is introduced into the device by connecting the connecting flange 7 to the gas pipeline. The gas flow is controlled by the valve 6. At the same time, the support structure 8 provides stable support for the entire device. The baffle 12 is reset by the return spring 11 to block external impurities after the gas is vented. The flame arrestor 9 prevents the flame from backflowing. The electric igniter 5 is used to ignite the vented gas. Meanwhile, the guide plate 10 optimizes the gas flow direction so that the electric igniter 5 can ignite the gas. The extension structure 3 is used to adjust the height of the sleeve 4 to adapt to different needs.

[0042] like Figures 4 to 5 As shown, the rotating assembly includes a rotating seat 804 installed at the bottom of the connecting pipe 1, a rotating block 802 rotatably connected inside the rotating seat 804, positioning blocks 803 fixed on both sides of the rotating block 802, a storage groove 807 opened on one side inside the rotating seat 804, and a support groove 808 opened at the bottom inside the rotating seat 804. The positioning blocks 803 form a locking structure between the storage groove 807 and the support groove 808 respectively. The storage grooves 807 are symmetrically distributed on the vertical center line of the rotating seat 804. The outer wall of the spiral tube 801 is provided with an external thread, and one side inside the outer tube 805 is provided with an internal thread that cooperates with the external thread.

[0043] In this embodiment of the utility model, by pulling the outer tube 805, the rotating block 802 is driven to rotate inside the rotating seat 804, so that the outer tube 805 is vertically downward. At the same time, the positioning block 803 moves from the storage groove 807 to the support groove 808 to stabilize the position of the outer tube 805. By rotating the screw tube 801, the screw tube 801 and the outer tube 805 are engaged by the threads to adjust the support height, so that the support plate 806 contacts the ground for support, thereby adapting to uneven ground or specific operational needs. The rotating block 802 is rotated in the opposite direction so that the outer tube 805 is tightly attached to the bottom of the device for easy storage.

[0044] like Figure 1 and Figure 3 As shown, the extension structure 3 includes a slide rail 301 fixed on both sides of the extension tube 2, a connecting frame 303 fixed on both sides of the sleeve 4, a sliding sleeve 302 installed on one side of the bottom end of the connecting frame 303 and slidably connected to the slide rail 301, a pressure roller 305 rotatably connected inside the sliding sleeve 302, a pressure rod 306 fixed on one side of the bottom end of the pressure roller 305, and a friction pad 304 fixed on one side of the slide rail 301. The slide rail 301 and the sliding sleeve 302 form a sliding structure, and the sliding sleeve 302 is connected to the sleeve 4 through the connecting frame 303.

[0045] In this embodiment of the utility model, the sliding sleeve 302 slides on the outside of the slide rail 301, and the sliding sleeve 302 drives the sleeve 4 to move through the connecting frame 303, thereby realizing the height adjustment of the sleeve 4. By operating the pressure rod 306, the pressure roller 305 is flipped and comes into contact with the friction pad 304, providing sufficient friction force and locking the position between the sliding sleeve 302 and the slide rail 301.

[0046] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A venting device for urban gas pipelines, comprising a connecting pipe (1), characterized in that, Also includes: A valve (6) is installed on one side of a connecting pipe (1), and a connecting flange (7) is installed on one side of the valve (6); A support structure (8) is provided at the bottom end of the connecting pipe (1). The support structure (8) includes a rotating component installed at the bottom end of the connecting pipe (1), an outer pipe (805) installed on one side of the rotating component, a threaded pipe (801) threaded inside the outer pipe (805), and a support plate (806) fixed on one side of the threaded pipe (801). An extension tube (2) is fixed at the top of the connecting tube (1), and a return spring (11) is installed inside the extension tube (2). A baffle (12) is installed at the bottom end of the return spring (11), and a flame arrester core (9) is fixed at the top end inside the extension tube (2). A sleeve (4) is slidably connected to the top end of the extension tube (2), and an electric sparker (5) is installed on one side of the sleeve (4). A guide plate (10) is fixed inside the top end of the sleeve (4). Extension structure (3) is provided on both sides of sleeve (4) for adjusting the height of sleeve (4).

2. The urban gas pipeline venting device according to claim 1, characterized in that, The rotating assembly includes a rotating seat (804) installed at the bottom of the connecting pipe (1), a rotating block (802) rotatably connected inside the rotating seat (804), positioning blocks (803) fixed on both sides of the rotating block (802), a storage groove (807) opened on one side inside the rotating seat (804), and a support groove (808) opened at the bottom inside the rotating seat (804).

3. A venting device for urban gas pipelines according to claim 2, characterized in that, The positioning block (803) forms an engaging structure between the storage groove (807) and the support groove (808), and the storage groove (807) is symmetrically distributed on the vertical center line of the rotating seat (804).

4. A venting device for urban gas pipelines according to claim 2, characterized in that, The outer wall of the spiral tube (801) is provided with an external thread, and one side of the inner tube (805) is provided with an internal thread that cooperates with the external thread.

5. A venting device for urban gas pipelines according to claim 1, characterized in that, The extension structure (3) includes a slide rail (301) fixed on both sides of the extension tube (2), a connecting frame (303) fixed on both sides of the sleeve (4), a sliding sleeve (302) installed on one side of the bottom end of the connecting frame (303) and slidably connected to the slide rail (301), a pressure roller (305) rotatably connected inside the sliding sleeve (302), a pressure rod (306) fixed on one side of the bottom end of the pressure roller (305), and a friction pad (304) fixed on one side of the slide rail (301).

6. A town gas pipeline venting device according to claim 5, characterized in that, The slide rail (301) and the slide sleeve (302) form a sliding structure, and the slide sleeve (302) is connected to the sleeve (4) through the connecting bracket (303).

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