A PE pipe rapid plugging device

Abstract

The utility model discloses a kind of PE pipeline quick plugging devices, belong to pipeline construction equipment technical field, to solve the problem of unstable PE pipeline fixation in prior art, clamping force is not easy to control and easily damaged pipeline, including support frame, optical axis, and fixed mechanism and clamping mechanism sliding on optical axis, the fixed mechanism includes the fixed plate of setting dovetail groove, fixed block is slidably connected in dovetail groove by sliding block, and by handle, adjusting wheel, limit plate, spring and the driving assembly of connecting shaft are formed, driving fixed block exerts elastic clamping force to PE pipe.The utility model is through dovetail groove guide structure, ensure the high stability of fixation;Elastic buffer clamping is realized by spring, avoid the damage to pipeline, and clamping force is controllable;While device versatility is strong, effectively ensure the plugging quality.

Description

Technical Field

[0001] This utility model relates to the field of pipeline construction equipment technology, and in particular to a rapid sealing device for PE pipelines. Background Technology

[0002] Due to its excellent corrosion resistance, flexibility, and long service life, PE pipes are widely used in municipal water supply and drainage, gas transmission and other engineering fields. During pipeline maintenance, emergency repair or rerouting, it is often necessary to seal a section of the PE pipe. At present, the sealing of PE pipes generally adopts the hot-melt butt welding method, that is, the matching PE plug and the pipe end to be sealed are heated and melted together, and after cooling, a completely sealed whole is formed.

[0003] In existing hot melt sealing operations, specialized devices are required to fix the PE pipe and the plug separately and ensure their coaxiality during heating and docking. However, existing sealing devices typically use simple clamps to fix the PE pipe, such as directly tightening it with a screw or using a simple V-block for limiting.

[0004] This simple fixing method has obvious technical defects. On the one hand, PE pipes themselves have a certain degree of roundness error and a relatively smooth surface. When applying clamping force using rigid clamps, it is difficult to ensure a uniform distribution of force. The PE pipe is prone to slight displacement or rotation during clamping, making it difficult to precisely align its axis with the plug's axis. On the other hand, due to the imprecise control of the clamping force, if the applied clamping force is too large, the rigid clamp can easily cause pressure damage or scratches on the surface of the PE pipe, forming stress concentration points and affecting the long-term safety of the seal. If the clamping force is too small, the PE pipe is prone to axial slippage when subsequent welding pressure is applied, leading to welding failure. This problem of unstable fixing, difficulty in controlling clamping force, and easy damage to the pipe directly affects the final sealing quality and construction efficiency.

[0005] Therefore, this utility model proposes a rapid sealing device for PE pipes to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a quick sealing device for PE pipes, which aims to improve the problems of existing quick sealing devices for PE pipes, such as difficulty in controlling the clamping force when fixing PE pipes, easy damage to the pipes, unstable fixing and easy displacement, and poor adaptability to different pipe diameters.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides a PE pipe quick sealing device, including a support frame, a light axis, a fixing mechanism, a clamping mechanism, and a heating plate. The light axis is fixedly connected to the support frame, the fixing mechanism is slidably connected to the light axis for fixing the PE pipe, the clamping mechanism is slidably connected to the light axis for clamping the plug, and the heating plate is movably disposed between the fixing mechanism and the clamping mechanism. The fixing mechanism includes a fixing plate, a fixing block, a connecting shaft, a limiting plate, a spring, an adjusting wheel, and a handle. The fixing plate has a dovetail groove, and the fixing block is slidably connected to the dovetail groove by a slider. The dovetail groove and the slider guide each other to ensure the stability of the fixing block during the force-driven movement process. Furthermore, one end of the connecting shaft is fixedly connected to the fixing block, the connecting shaft slides through the limiting plate, the spring is sleeved on the connecting shaft and located between the limiting plate and the fixing block, the handle is used to drive the adjusting wheel to rotate, the adjusting wheel is used to drive the limiting plate to move along the axial direction of the connecting shaft, the movement of the limiting plate will squeeze the spring, and finally the spring will cause the fixing block to apply an elastic clamping force to the PE pipe, avoiding damage caused by rigid clamping.

[0008] Preferably, the fixing mechanism includes two fixing blocks arranged opposite each other, wherein one fixing block is driven by the adjusting wheel to achieve elastic clamping. To improve pipe diameter adaptability, the fixing mechanism also includes a spring, which is connected to the other fixing block. By rotating the first nut, the other fixing block can be driven to slide, thereby adjusting the distance between the two fixing blocks.

[0009] Preferably, the adjusting wheel and the limiting plate are engaged by a threaded structure. When the adjusting wheel rotates, the limiting plate is driven to move smoothly along the axial direction of the connecting shaft through the threaded structure, so that the force application process is precise and controllable.

[0010] Preferably, the slider is fixed to the bottom surface of the fixing block, and the dovetail groove is correspondingly formed on the top surface of the fixing plate. This arrangement facilitates installation and maintenance.

[0011] Preferably, the clamping mechanism includes an upper clamping block, a lower clamping block, a connecting block, a screw, and a second nut. The upper clamping block and the lower clamping block are used to clamp the plug by working together. The screw and the second nut are used to pass through the connecting block to connect and lock the upper clamping block and the lower clamping block, thereby achieving a firm fixation of the plug.

[0012] Preferably, the clamping mechanism further includes a fixing ring, which is fixedly connected to the connecting block, and its inner hole slides with the optical axis to play a guiding and positioning role, ensuring the coaxiality of the plug and the PE pipe.

[0013] Preferably, the heating plate rotates around the pivot, allowing it to easily screw into or out of the working space between the fixing mechanism and the clamping mechanism, making operation convenient and quick.

[0014] This utility model has the following beneficial effects: 1. This utility model solves the problems of poor stability and easy deviation when fixing PE pipes in the prior art by setting a fixing plate and a dovetail groove on the fixing plate, and setting a slider on the fixing block that slides with the dovetail groove. It achieves the goal of ensuring that the fixing block moves smoothly during the clamping process, preventing deflection, and improving the fixing reliability of PE pipes.

[0015] 2. This utility model solves the problems of difficult-to-control clamping force, easy damage to PE pipe when the clamping force is too large, and weak clamping when the clamping force is too small in the prior art by setting a handle to drive the adjusting wheel. The adjusting wheel drives the limiting plate to move and squeezes the spring set between the limiting plate and the fixing block. It achieves the goal of applying elastic clamping force to PE pipe, making the fit tighter and buffering the clamping force to avoid damage to PE pipe.

[0016] 3. This utility model solves the problem that the sealing device in the prior art is difficult to adapt to PE pipes of different diameters and has poor versatility by setting relative fixed blocks and using the first nut to drive one of the fixed blocks to adjust its position. It achieves convenient adjustment of the distance between the two fixed blocks, making it applicable to PE pipes of different diameters and improving the versatility of the device. Attached Figure Description

[0017] Figure 1 This is a perspective view of a PE pipe quick sealing device proposed in this utility model; Figure 2 This is a schematic diagram of the fixing block of a PE pipe quick sealing device proposed in this utility model; Figure 3 This is a schematic diagram of the slider of a PE pipe quick sealing device proposed in this utility model; Figure 4 This is a schematic diagram of the fixing ring of a PE pipe quick sealing device proposed in this utility model; Figure 5 This is a schematic diagram of the heating plate of a rapid sealing device for PE pipes proposed in this utility model.

[0018] Legend: 1. Support frame; 2. PE pipe; 3. Fixing mechanism; 301. Fixing block; 302. Fixing plate; 303. Connecting shaft; 304. Spring; 305. Handle; 306. First nut; 307. Limiting plate; 308. Adjusting wheel; 309. Slider; 310. Dovetail groove; 4. Clamping mechanism; 401. Upper clamping block; 402. Fixing ring; 403. Connecting block; 404. Screw; 405. Second nut; 406. Lower clamping block; 5. Optical shaft; 6. Plug; 7. Heating plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figures 1-5 This utility model provides an embodiment of a PE pipe quick sealing device, including a support frame 1, and an optical axis 5, a fixing mechanism 3, a clamping mechanism 4, and a heating plate 7 disposed on the support frame 1. The optical axis 5 is fixedly connected to the support frame 1 to provide a stable foundation guide for the entire device. The fixing mechanism 3 is slidably connected to the optical axis 5 for fixing the PE pipe 2. The clamping mechanism 4 is also slidably connected to the optical axis 5 for clamping the plug 6. The heating plate 7 is movably disposed between the fixing mechanism 3 and the clamping mechanism 4 for heating the PE pipe 2 and the plug 6. The device further includes a fixed plate 302, a fixed block 301, a connecting shaft 303, a limiting plate 307, a spring 304, an adjusting wheel 308, and a handle 305. The fixed plate 302 has a dovetail groove 310. A slider 309 is fixed to the bottom surface of the fixed block 301, and a dovetail groove 310 is also provided on the top surface of the fixed plate 302. The fixed block 301 is slidably connected to the dovetail groove 310 via the slider 309, ensuring the stability of the fixed block 301 during the clamping of the PE pipe 2. One end of the connecting shaft 303 is fixedly connected to the fixed block 301, and the connecting shaft 303 slides through the limiting plate 307. The spring 304 is sleeved on the connecting shaft 303 and is located between the limiting plate 307 and the fixed block 301, forming a buffer structure. During operation, the handle 305 is used to move the device. The adjusting wheel 308 rotates, and the adjusting wheel 308 drives the limiting plate 307 to move axially along the connecting shaft 303 through the threaded structure. The movement of the limiting plate 307 will compress the spring 304, and the spring 304 will then transmit the force to the fixing block 301, thereby applying a stable and elastic clamping force to the PE pipe 2, avoiding damage that may be caused by rigid clamping. In order to adapt to different pipe diameters, the fixing mechanism 3 includes two fixing blocks 301 arranged opposite to each other. One fixing block 301 is driven by the aforementioned adjusting wheel 308. The fixing mechanism 3 also includes a first nut 306, which is threadedly engaged with another connecting shaft connected to the other fixing block 301. By rotating the first nut 306, the other fixing block 301 can be driven to slide, thereby conveniently adjusting the initial distance between the two fixing blocks 301. It also includes a clamping mechanism 4 and a heating plate 7. The clamping mechanism 4 is used to stably clamp the plug 6 during the sealing process. Its whole body is also slidably connected to the optical axis 5, thereby ensuring its coaxiality with the fixing mechanism 3. The internal structure of the clamping mechanism 4 includes an upper clamping block 401, a lower clamping block 406, a connecting block 403, a screw 404, and a second nut 405. The upper clamping block 401 and the lower clamping block 406 are used to clamp the plug 6 in the vertical direction. By tightening the screw 404 and the second nut 405, the screw 404 and the second nut 405 pass through the connecting block 403, thereby firmly connecting and locking the upper clamping block 401 and the lower clamping block 406, providing a reliable clamping force for the plug 6. In order to enable the clamping mechanism 4 to slide stably along the optical axis 5, the clamping mechanism 4 also includes a fixing ring 402. The fixing ring 402 is fixedly connected to the connecting block 403, and its inner hole slides with the optical axis 5, playing a guiding and positioning role. After the PE pipe 2 and the plug 6 are fixed and clamped respectively, they need to be heated. At this time, the heating plate 7 rotates around the pivot to screw into the space between the fixing mechanism 3 and the clamping mechanism 4, and heat-melts the end face of the PE pipe 2 and the end face of the plug 6 at the same time. After the heating is completed, the heating plate 7 rotates around the pivot again to screw out of the space, making room for the subsequent welding steps. The adjusting wheel 308 drives the limiting plate 307 to move axially along the connecting shaft 303 via a threaded structure. The slider 309 is fixed to the bottom surface of the fixing block 301, and the dovetail groove 310 is formed on the top surface of the fixing plate 302. The fixing mechanism 3 preferably includes two fixing blocks 301 arranged opposite to each other. One fixing block 301 is driven by the adjusting wheel 308 to achieve elastic clamping. The fixing mechanism 3 also includes a first nut 306, which is threadedly engaged with another connecting shaft connected to the other fixing block 301. By rotating the first nut 306, the other fixing block 301 is driven to slide, thereby realizing the rapid adjustment of the initial distance between the two fixing blocks 301.

[0021] Working principle: In use, first place the PE pipe 2 to be sealed between the two fixed blocks 301 of the fixing mechanism 3. According to the diameter of the PE pipe 2, rotate the first nut 306 to drive the other fixed block 301 to move, thereby quickly adjusting the initial distance between the two fixed blocks 301. Then rotate the handle 305, which drives the adjusting wheel 308 to rotate. The adjusting wheel 308 drives the limiting plate 307 to move axially along the connecting shaft 303, thereby squeezing the spring 304 located between the limiting plate 307 and the fixed block 301. The force generated by the spring 304 pushes the fixed block 301. The fixed block 301 slides smoothly in the dovetail groove 310 of the fixing plate 302 through the slider 309, and finally clamps the PE pipe 2 in an elastic manner. At the same time, the plug 6 is placed between the upper clamping block 401 and the lower clamping block 406 of the clamping mechanism 4, and the screw 404 and the second nut 405 are tightened. The upper and lower clamping blocks 401 and 406 are locked by the connecting block 403, thereby firmly clamping the plug 6. Both the fixing mechanism 3 and the clamping mechanism 4 are guided and positioned by the optical axis 5, ensuring the coaxiality of the PE pipe 2 and the plug 6. After preparation, the heating plate 7 is rotated around the shaft to the end face between the PE pipe 2 and the plug 6 and heated. After the end face melts, the heating plate 7 is quickly rotated out. Then, the fixing mechanism 3 and the clamping mechanism 4 are driven to move towards each other along the optical axis 5, so that the molten end face of the PE pipe 2 and the plug 6 are tightly attached and pressure is maintained. After it cools and solidifies, the sealing is completed. The whole process effectively ensures the quality and reliability of the sealing through stable guidance and buffered clamping.

Claims

1. A rapid sealing device for PE pipes, comprising: The support frame (1), optical axis (5), fixing mechanism (3), clamping mechanism (4) and heating plate (7) are provided. The optical axis (5) is fixedly connected to the support frame (1). The fixing mechanism (3) is slidably connected to the optical axis (5) for fixing the PE pipe (2). The clamping mechanism (4) is slidably connected to the optical axis (5) for clamping the plug (6). The heating plate (7) is movably disposed between the fixing mechanism (3) and the clamping mechanism (4). The fixing mechanism (3) is characterized in that it comprises: a fixing plate (302), a fixing block (301), a connecting shaft (303), a limiting plate (307), a spring (304), an adjusting wheel (308), and a handle (305). The fixing plate (302) has a dovetail groove (310). The fixing block (301) is slidably connected to the dovetail groove (310) via a slider (309). One end of the connecting shaft (303) is fixedly connected to the fixing block (301). 03) The spring (304) is slidably inserted through the limiting plate (307), and is sleeved on the connecting shaft (303) and located between the limiting plate (307) and the fixing block (301). The handle (305) is used to drive the adjusting wheel (308) to rotate. The adjusting wheel (308) is used to drive the limiting plate (307) to move along the axial direction of the connecting shaft (303) and squeeze the spring (304) so ​​that the fixing block (301) applies a clamping force to the PE pipe (2).

2. The PE pipe rapid sealing device according to claim 1, characterized in that: The fixing mechanism (3) includes two fixing blocks (301) arranged opposite to each other, one of the fixing blocks (301) being driven by the adjusting wheel (308). The fixing mechanism (3) also includes a spring (304) for driving the other fixing block (301) to slide, so as to adjust the distance between the two fixing blocks (301).

3. The PE pipe rapid sealing device according to claim 1, characterized in that: The adjusting wheel (308) drives the limiting plate (307) to move axially along the connecting shaft (303) via a threaded structure.

4. The PE pipe rapid sealing device according to claim 1, characterized in that: The slider (309) is fixed to the bottom surface of the fixing block (301), and the dovetail groove (310) is formed on the top surface of the fixing plate (302).

5. The PE pipe rapid sealing device according to claim 1, characterized in that: The clamping mechanism (4) includes an upper clamping block (401), a lower clamping block (406), a connecting block (403), a screw (404), and a second nut (405). The upper clamping block (401) and the lower clamping block (406) are used to clamp the plug (6) from above and below. The screw (404) and the second nut (405) are used to pass through the connecting block (403) to connect and lock the upper clamping block (401) and the lower clamping block (406).

6. The PE pipe rapid sealing device according to claim 5, characterized in that: The clamping mechanism (4) further includes a fixing ring (402), which is fixedly connected to the connecting block (403) and slides with the optical axis (5).

7. The PE pipe rapid sealing device according to claim 1, characterized in that: The heating plate (7) rotates around the pivot to screw into or out of the space between the fixing mechanism (3) and the clamping mechanism (4).

8. The PE pipe rapid sealing device according to claim 2, characterized in that: The first nut (306) is threadedly engaged with another connecting shaft connected to the other fixed block (301) to drive the other fixed block (301) to slide.

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