A welding-free pressure test plugging device

Abstract

The utility model relates to pipeline pressure test technical field, and disclose a kind of welding pressure test plugging device, solve the problem of current inconvenience to pipeline is quickly clamped and blocked, it includes mounting ring, the clamping plugging mechanism is equipped on the mounting ring, the outside of mounting ring is equipped with plugging blind plate, the inboard of plugging blind plate is fixedly installed with sealing washer, the outside of plugging blind plate is fixedly connected with water pipe, valve is installed on water pipe, clamping plugging mechanism includes two arc clamps symmetrically located inboard of mounting ring, the outside of mounting ring is fixedly connected with two positioning frames symmetrically, the outside of two positioning frames is fixedly connected with L type round bar, the one end of two L type round bars is fixedly connected with side block;The utility model, through the cooperation between hand wheel, screw rod, screw sleeve, side plate, L type round bar, movable rod one, positioning plate, positioning frame and plugging blind plate, sealing washer and the end of pipeline are closely attached, to facilitate the quick clamping and blocking of pipeline.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline pressure testing technology, specifically a welding-free pressure testing and sealing device. Background Technology

[0002] Currently, during pipeline strength testing and pressure testing, the pipeline ends are typically sealed using welded test caps or blind flanges to achieve pressure sealing. However, this sealing method requires welding of the test caps or blind flanges during pipeline construction and pressure testing, leading to welding defects and the need for weld inspection, which impacts the pressure testing period and can result in insufficient time and delayed construction progress. According to patent application CN109237193A, entitled "A Clamping Ring Type Weld-Free Pressure Testing and Sealing Device," this method not only solves the quality problems of welded sealing but also addresses the issue of excessively long installation periods, significantly improving the efficiency of pipeline pressure testing. Furthermore, it is reusable, reducing pipeline installation and construction costs. However, it still has the following drawbacks:

[0003] It requires the use of multiple bolts to clamp and seal the pipeline, which necessitates multiple operations, making it cumbersome and inefficient. Utility Model Content

[0004] In view of the above situation and to overcome the shortcomings of the existing technology, this utility model provides a welding-free pressure testing and sealing device, which effectively solves the problem of the inconvenience of quickly clamping and sealing pipelines.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding-free pressure testing and sealing device, including an installation ring, a clamping and sealing mechanism on the installation ring, a sealing blind plate on the outer side of the installation ring, a sealing gasket fixedly installed on the inner side of the sealing blind plate, a water pipe fixedly connected to the outer side of the sealing blind plate, and a valve installed on the water pipe;

[0006] The clamping and sealing mechanism includes two symmetrically located arc-shaped clamping plates inside the mounting ring. Two positioning frames are symmetrically fixedly connected to the outer side of the mounting ring. An L-shaped round rod is fixedly connected to the outer side of each positioning frame. A side block is fixedly connected to one end of each L-shaped round rod. A slider is movably sleeved on the outer side of each L-shaped round rod. A U-shaped plate is fixedly connected to the side of each slider that is close to each other. The two U-shaped plates are fixedly connected to the two arc-shaped clamping plates respectively. Both U-shaped plates pass through the mounting ring and are movably connected to the mounting ring. A spring is fixedly connected between the slider and the positioning frame. The spring is sleeved on the outer side of the L-shaped round rod. Two positioning plates are symmetrically fixedly connected to the outer side of the sealing blind plate. The two positioning plates pass through the two positioning frames respectively.

[0007] Preferably, a sliding plate is movably sleeved on the outer side of each of the two L-shaped round rods, and a U-shaped handle is fixedly connected between the two sliding plates.

[0008] Preferably, a movable rod two is rotatably connected to the outer side of the skateboard, and the end of the movable rod two away from the skateboard is rotatably connected to the slider.

[0009] Preferably, the outer side of the mounting ring is provided with a threaded sleeve, and two movable rods are symmetrically rotatably connected to the outer side of the threaded sleeve. The ends of the two movable rods away from the threaded sleeve are respectively rotatably connected to two positioning plates.

[0010] Preferably, an mounting block is fixedly mounted on the outer side of the mounting ring, a screw is rotatably connected to the outer side of the mounting block, a handwheel is fixedly connected to the end of the screw away from the mounting block, a threaded sleeve is threaded onto the outer side of the screw, and two side plates are symmetrically fixedly connected to the outer side of the threaded sleeve, and the two side plates are respectively movably sleeved onto the outer side of two L-shaped round rods.

[0011] Preferably, the side plate is located between the side block and the slide plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Through the cooperation of the U-shaped handle, sliding plate, L-shaped round rod, movable rod two, slider, positioning frame, spring, U-shaped plate and arc-shaped clamping plate, the mounting ring can be fixed to the end of the pipeline. Through the cooperation of the handwheel, screw, screw sleeve, side plate, L-shaped round rod, movable rod one, positioning plate, positioning frame and sealing blind plate, the sealing gasket can be tightly attached to the end of the pipeline, thus facilitating the quick clamping and sealing of the pipeline.

[0014] 2. The combination of handwheel, screw, screw sleeve, side plate and L-shaped round rod makes it easy to limit the two slide plates to prevent the two arc-shaped clamps from loosening, thus facilitating stable clamping of pipelines. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the weld-free pressure testing and sealing device of this utility model;

[0018] Figure 2 This is a schematic diagram of the blind flange structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the clamping and sealing mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the arc-shaped clamping plate structure of this utility model.

[0021] In the diagram: 1. Mounting ring; 2. Clamping and sealing mechanism; 201. Arc-shaped clamping plate; 202. U-shaped handle; 203. Screw sleeve; 204. Mounting block; 205. Handwheel; 206. Screw; 207. Side plate; 208. Side block; 209. L-shaped round rod; 2010. Slide plate; 2011. Movable rod one; 2012. Slider; 2013. Spring; 2014. Positioning plate; 2015. U-shaped plate; 2016. Positioning frame; 2017. Movable rod two; 3. Sealing blind plate; 4. Sealing gasket; 5. Water pipe; 6. Valve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example 1, by Figure 1-2 This utility model relates to a weld-free pressure testing and sealing device, comprising an installation ring 1, a clamping and sealing mechanism 2 on the installation ring 1, a sealing blind plate 3 on the outer side of the installation ring 1, a sealing gasket 4 fixedly installed on the inner side of the sealing blind plate 3, and a water pipe 5 fixedly connected to the outer side of the sealing blind plate 3. A valve 6 is installed on the water pipe 5. First, the installation ring 1 is fixed to the outer side of the pipeline by the clamping and sealing mechanism 2, so that the end of the pipeline is in contact with the sealing gasket 4. By opening the valve 6, the pressure testing medium enters the pipeline. Then, the medium is continuously injected until it fills the internal space of the pipeline, so that the internal pressure of the pipeline reaches the pipeline test pressure requirement, thus completing the entire pressure testing and pressurization process. Then, a pressure holding process is performed. After the pressure check is completed, the pressure is released and the pressure testing medium is discharged.

[0024] Specifically, by Figure 3-4The clamping and sealing mechanism 2 includes two arc-shaped clamping plates 201 symmetrically located inside the mounting ring 1. Two positioning frames 2016 are symmetrically fixedly connected to the outer side of the mounting ring 1. L-shaped round rods 209 are fixedly connected to the outer side of each positioning frame 2016. Side blocks 208 are fixedly connected to one end of each L-shaped round rod 209. Slider blocks 2012 are movably sleeved on the outer side of each L-shaped round rod 209. U-shaped plates 2015 are fixedly connected to the sides of each slider 2012 that are close to each other. The two U-shaped plates 2015 are respectively fixedly connected to the two arc-shaped clamping plates 201. Both U-shaped plates 2015 pass through the mounting ring 1 and are movably connected to it. A spring 2013 is fixedly connected between the slider 2012 and the positioning frame 2016. The spring 2013 is sleeved on the outer side of the L-shaped round rod 209. Two positioning plates 2014 are symmetrically fixedly connected to the outer side of the sealing blind plate 3. The two positioning plates 2014 pass through the two positioning frames 2016 respectively. The outer sides of the L-shaped round rod 209 are movably fitted with sliding plates 2010. A U-shaped handle 202 is fixedly connected between the two sliding plates 2010. A movable rod 2017 is rotatably connected to the outer side of the sliding plate 2010. The end of the movable rod 2017 away from the sliding plate 2010 is rotatably connected to the slider 2012. A threaded sleeve 203 is provided on the outer side of the mounting ring 1. Two movable rods 2011 are symmetrically rotatably connected to the outer side of the threaded sleeve 203. The two movable rods 2011 are located away from the threaded sleeve 2012. One end of 03 is rotatably connected to two positioning plates 2014 respectively. An installation block 204 is fixedly installed on the outside of the installation ring 1. A screw 206 is rotatably connected to the outside of the installation block 204. A handwheel 205 is fixedly connected to the end of the screw 206 away from the installation block 204. A screw sleeve 203 is threaded onto the outside of the screw 206. Two side plates 207 are symmetrically fixedly connected to the outside of the screw sleeve 203. The two side plates 207 are movably sleeved onto the outside of two L-shaped round rods 209 respectively.

[0025] In operation, first pull the U-shaped handle 202, causing the two sliding plates 2010 to slide along the two L-shaped rods 209 respectively. This is followed by the two movable rods 2017 driving the two sliders 2012 to slide along the two L-shaped rods 209 respectively. Then, the two U-shaped plates 2015 drive the two arc-shaped clamps 201 to move away from each other. At this point, both springs 2013 are stretched. Next, place the mounting ring 1 at the end of the pipeline, and then release the U-shaped handle 202. The two springs 2013 return to their original position, causing the two sliders 2012 to slide along the two L-shaped rods 209 respectively. Two U-shaped plates 2015 drive two arc-shaped clamping plates 201 to move, thereby clamping and fixing the pipeline. Then, the handwheel 205 is rotated to drive the screw 206 to rotate. Since the two side plates 207 fixed on the screw sleeve 203 are respectively movably sleeved on the outside of the two L-shaped round rods 209, the screw sleeve 203 is guided to move along the length of the screw 206. The two movable rods 2011 drive the two positioning plates 2014 to slide along the two positioning frames 2016 respectively. At the same time, the sealing blind plate 3 moves horizontally until the sealing gasket 4 is attached to the end of the pipeline. Finally, the pipeline is quickly clamped and sealed.

[0026] Specifically, by Figure 3 As shown, side plate 207 is located between side block 208 and slide plate 2010;

[0027] In use, when the handwheel 205 is rotated, the screw 206 is rotated and the screw sleeve 203 is moved. At the same time, the two side plates 207 slide along the two L-shaped round rods 209 respectively. When the sealing gasket 4 is in contact with the end of the pipeline, the two side plates 207 abut against the two sliding plates 2010 respectively, preventing the two arc-shaped clamps 201 from loosening, and finally stably clamping the pipeline.

Claims

1. A weld-free pressure testing and sealing device, comprising a mounting ring (1), characterized in that: The mounting ring (1) is provided with a clamping and sealing mechanism (2), a sealing blind plate (3) is provided on the outside of the mounting ring (1), a sealing gasket (4) is fixedly installed on the inside of the sealing blind plate (3), a water pipe (5) is fixedly connected to the outside of the sealing blind plate (3), and a valve (6) is installed on the water pipe (5). The clamping and sealing mechanism (2) includes two arc-shaped clamping plates (201) symmetrically located inside the mounting ring (1). Two positioning frames (2016) are symmetrically fixedly connected to the outer side of the mounting ring (1). L-shaped round rods (209) are fixedly connected to the outer side of each of the two positioning frames (2016). Side blocks (208) are fixedly connected to one end of each of the two L-shaped round rods (209). Slider blocks (2012) are movably sleeved on the outer side of each of the two L-shaped round rods (209). U-shaped plates (208) are fixedly connected to the side of each slider (2012) that is close to each other. 15) Two U-shaped plates (2015) are fixedly connected to two arc-shaped clamps (201) respectively. Both U-shaped plates (2015) pass through the mounting ring (1) and are movably connected to the mounting ring (1). A spring (2013) is fixedly connected between the slider (2012) and the positioning frame (2016). The spring (2013) is sleeved on the outside of the L-shaped round rod (209). Two positioning plates (2014) are symmetrically fixedly connected to the outside of the sealing blind plate (3). The two positioning plates (2014) pass through the two positioning frames (2016) respectively.

2. The welding-free pressure testing and sealing device according to claim 1, characterized in that: The outer sides of the two L-shaped round rods (209) are movably fitted with sliding plates (2010), and a U-shaped handle (202) is fixedly connected between the two sliding plates (2010).

3. The welding-free pressure testing and sealing device according to claim 2, characterized in that: The outer side of the slide plate (2010) is rotatably connected to a movable rod two (2017), and the end of the movable rod two (2017) away from the slide plate (2010) is rotatably connected to the slider (2012).

4. The welding-free pressure testing and sealing device according to claim 1, characterized in that: The outer side of the mounting ring (1) is provided with a threaded sleeve (203). Two movable rods (2011) are symmetrically rotatably connected to the outer side of the threaded sleeve (203). The ends of the two movable rods (2011) away from the threaded sleeve (203) are rotatably connected to two positioning plates (2014) respectively.

5. The welding-free pressure testing and sealing device according to claim 1, characterized in that: An installation block (204) is fixedly installed on the outer side of the installation ring (1). A screw (206) is rotatably connected to the outer side of the installation block (204). A handwheel (205) is fixedly connected to the end of the screw (206) away from the installation block (204). A threaded sleeve (203) is threaded onto the outer side of the screw (206). Two side plates (207) are symmetrically fixedly connected to the outer side of the threaded sleeve (203). The two side plates (207) are respectively movably sleeved onto the outer side of two L-shaped round rods (209).

6. The welding-free pressure testing and sealing device according to claim 5, characterized in that: The side plate (207) is located between the side block (208) and the slide plate (2010).

Images