Quick brake switching device without gas at inlet

Abstract

The utility model discloses a quick switching device without gas at an inlet, which comprises a flange plate, an outer sleeve, an inner sleeve, an external thread and a sealing ring, the bottom of the flange plate is fixedly connected with the outer sleeve, the inner sleeve is arranged inside the outer sleeve, the external thread is arranged at the top of the inner sleeve, a notch is arranged at one end inside the outer sleeve, and an internal thread is arranged at one end inside the notch. Compared with a traditional welding tee joint plugging mode, the operation time can be greatly shortened through the installation speed.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipe maintenance, in particular to a quick valve-changing device without gas at an inlet. Background Art

[0002] With the rapid development of the city and the needs of work, some disadvantages of the built-in valves at the gas pipeline inlet have become apparent. Daily maintenance and emergency repairs require closing the valves, which cannot be closed when no one is at home. Closing the valves at night affects residents' rest. Therefore, the gas group generally moves the valves outward when renovating the inlets.

[0003] However, the conventional outward movement of the inlet valve requires workers to go to the work platform in advance, cooperate with the operation and maintenance department, identify the location of the pipe in front of the building, dig the work pit by the construction unit, and lower the pipe to carry out the work. There are problems such as joint work by multiple departments, long operation time, heavy workload, and long impact on users' gas use time. Utility Model Content

[0004] The purpose of the utility model is to provide a quick valve changing device without air at the inlet. The utility model adopts a quick device for moving the inlet valve outward, which is easy to install and adopts a sealing ring design to achieve welding without air, thereby greatly improving safety and solving the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The inlet does not have a quick-change brake device, including a flange, an outer sleeve, an inner sleeve, an external thread and a sealing ring. The bottom of the flange is fixedly connected to the outer sleeve, and the inner sleeve is provided inside the outer sleeve. The top of the inner sleeve is provided with an external thread. A notch is opened at one end of the inner part of the outer sleeve, and an internal thread is provided at one end of the inner part of the notch. A mounting platform is installed at one end of the notch, and a sealing ring is attached to the surface of the mounting platform.

[0007] Preferably, a through hole is opened at the center of the surface of the mounting platform, and the through hole is communicated with the flange.

[0008] Preferably, a plurality of groups of bolt holes for connecting and fixing the valve are provided at the peripheral end of the top surface of the flange.

[0009] Preferably, the external thread is threadably connected to the internal thread arranged inside the notch.

[0010] Preferably, a rubber protective sleeve for protecting the welding position is sleeved on the bottom of the inner sleeve.

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

[0012] (1) The installation speed is faster than the traditional welding tee plugging method, which can greatly shorten the operation time. It takes more than five times longer than the traditional operation method, and can save about 3 hours per time. After the branch company fully promotes it, it can save more than 600,000 yuan in labor costs;

[0013] (2) The inlet valve is quickly moved outward, which is easy to install. The sealing ring design can achieve welding without gas, greatly improving safety.

[0014] (3) Material costs have been greatly reduced. The cost of the inlet valve relocation device is about 1 / 2 of that of the old equipment. The Fourth Branch Company renovates more than 8,000 inlets and corroded pipes each year, which is expected to save about RMB 4 million. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the explosion separation structure of the quick brake changing device of the utility model;

[0017] Figure 3 It is a schematic diagram of the internal structure of the jacket of the utility model.

[0018] In the figure: 1. Flange; 2. Bolt hole; 3. Outer sleeve; 4. Inner sleeve; 5. External thread; 6. Sealing ring; 7. Rubber protective sleeve; 8. Mounting platform; 9. Internal thread. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 3The utility model provides a quick brake changing device without air at the inlet, comprising a flange 1, an outer sleeve 3, an inner sleeve 4, an external thread 5 and a sealing ring 6. The bottom of the flange 1 is fixedly connected with the outer sleeve 3, and the inner sleeve 4 is provided inside the outer sleeve 3. The top of the inner sleeve 4 is provided with an external thread 5. A notch is provided at one end of the inner part of the outer sleeve 3, and an internal thread 9 is provided at one end of the inner part of the notch. A mounting platform 8 is installed at one end of the notch, and a sealing ring 6 is attached to the surface of the mounting platform 8. A through hole is provided at the center of the surface of the mounting platform 8, and the through hole is communicated with the flange 1. A plurality of groups of bolt holes 2 for connecting and fixing the valve are provided at the peripheral end of the top surface of the flange 1. The external thread 5 is threadedly connected to the internal thread 9 provided inside the notch, and a rubber protective sleeve 7 for protecting the welding position is sleeved on the bottom of the inner sleeve 4.

[0021] First close the indoor valve, then open the outdoor vent plug, place the built-in ball bladder in the pipeline below the location where the valve is to be installed, pump air into the ball bladder to block the air source, determine the valve installation location, use a cutting knife to cut the pipeline and remove it, install the device inner sleeve 4, sealing ring 6, outer sleeve 3 together with the valve on the pipeline in sequence, the valve is in the open state, take out the ball bladder hose from above the valve, tighten the external thread 5 on the inner sleeve 4, the ball bladder releases some pressure, quickly take it out from above the valve and close the valve, after the installation is completed, check the sealing of the connection between the inner sleeve 4 and the outer sleeve 3, if the environmental test is qualified, you can start welding work.

[0022] This utility can significantly shorten the operation time through installation speed compared with the traditional welding three-way plugging method; it takes more than five times longer than the traditional operation method, and can save about 3 hours per time. After the branch company fully promotes it, it can save more than 600,000 yuan in labor costs;

[0023] (2) The inlet valve is quickly moved outward, which is easy to install. The sealing ring 6 design can achieve gas-free welding, greatly improving safety;

[0024] (3) Material costs have been greatly reduced. The cost of the inlet valve relocation device is about 1 / 2 of that of the old equipment. The Fourth Branch Company renovates more than 8,000 inlets and corroded pipes each year, which is expected to save about RMB 4 million.

[0025] Moreover, in previous work on relocating the inlet, it was necessary to shut off the gas and seal the external line, and then carry out the work after the purging was qualified. This required the cooperation of the operation and maintenance department, and the need to go to the working platform.

[0026] The device is a new type of tool equipment, which avoids the external plugging work and does not need to go on the working platform, saving time and labor costs. Even compared with the temporary plug (Japanese umbrella bag), it is more economical and practical. The device can quickly complete the external relocation of the inlet valve while minimizing the impact on the user's gas use.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick brake-changing device without air inlet, comprising a flange (1), an outer sleeve (3), an inner sleeve (4), an external thread (5) and a sealing ring (6), characterized in that: The bottom of the flange (1) is fixedly connected to an outer sleeve (3), and an inner sleeve (4) is provided inside the outer sleeve (3). The top of the inner sleeve (4) is provided with an external thread (5). A notch is provided at one end of the inner part of the outer sleeve (3), and an internal thread (9) is provided at one end of the inner part of the notch. A mounting platform (8) is installed at one end of the notch, and a sealing ring (6) is attached to the surface of the mounting platform (8).

2. The quick brake-changing device without air in the inlet according to claim 1, characterized in that: A through hole is provided at the center of the surface of the mounting platform (8), and the through hole is communicated with the flange (1).

3. The quick brake-changing device without air in the inlet according to claim 1, characterized in that: A plurality of groups of bolt holes (2) for connecting and fixing the valve are provided at the peripheral end of the top surface of the flange (1).

4. The quick brake-changing device without air in the inlet according to claim 1, characterized in that: The external thread (5) is threadably connected to the internal thread (9) arranged inside the notch.

5. The quick brake-changing device without air in the inlet according to claim 1, characterized in that: The bottom of the inner sleeve (4) is sleeved with a rubber protective sleeve (7) for protecting the welding position.

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