Rapid lossless plugging device for pipeline orifice

Abstract

The utility model relates to the technical field of pipeline plugging tools, in particular to a quick lossless plugging device for a pipeline orifice. The cover comprises a cover body; a mounting hole is formed in the middle of the cover body, the right part of the sliding rod is mounted in the mounting hole, the right end of the sliding rod is fixedly connected with a pull rod, the left part of the sliding rod is fixedly connected with a limiting plate, a spring is mounted on the sliding rod between the limiting plate and the cover body, and at least two rotating rods are symmetrically hinged to the left end of the sliding rod; and a rotating support plate is hinged to the outer end of the rotating rod. The pipeline plugging device is reasonable and compact in structure and convenient to use, and firm connection is formed between the pipeline plugging device and a pipeline through interaction force of the cover body and the rotary supporting plate on the pipeline to be plugged; an operator only needs to simply pull or loosen the pull rod to quickly complete the assembly and disassembly of the device, complicated tools or long-time operation is not needed, a pipeline port cannot be damaged, the device has the characteristics of safety and reliability, the operation is convenient, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline blocking tools and is a rapid and lossless blocking device for a pipeline orifice. Background Art

[0002] During the construction of long-distance pipelines, it is often necessary to temporarily block the pipe openings, such as to avoid "drafts" during welding, when relocating construction sites, or when breaking pipes, in order to prevent interference with welding or the entry of debris and dust into the pipe. For the above situations, the common method for blocking pipe openings is to cover them with canvas, block them with plastic sheets, or weld steel plates to the pipe openings. The disadvantage of such methods is that the blocking method is often not tight, and the contact between the blocking material and the pipe opening is not firm, making it easy to slip. Although welding can achieve a tight seal, it requires welding equipment, and after sealing, it can only be removed by gas welding, which is time-consuming and labor-intensive. The pipe opening is also damaged, and beveling processing is required before normal welding of the pipeline can be performed again. The larger the diameter of the pipe opening, the more complicated the process.

[0003] Patent document CN206429802U discloses a rapid and non-destructive plugging device for pipe orifices, comprising a cover body, a sliding rod, a hinged seat, a movable seat, a rotating support plate, and a connecting rod. A threaded through-hole is provided in the middle of the cover body, a sliding rod meshing with the threaded through-hole is installed in the threaded through-hole, and both ends of the sliding rod are respectively passed through the outside of the threaded through-hole. A hinged seat fixed to the cover body is mounted on the outside of the sliding rod corresponding to the left side of the threaded through-hole, and a movable seat located to the left of the hinged seat is mounted on the outside of the left part of the sliding rod. The utility model forms a firm connection between the cover body and the rotating support plate and the pipe to be blocked through the interaction force between the cover body and the rotating support plate, making it difficult to slip. The end cap can achieve a tight sealing of the pipe to prevent impurities from entering the pipe. However, this technical solution requires shaking the handle for locking, which is cumbersome and inconvenient to operate. Utility Model Content

[0004] The utility model provides a device for quickly and non-destructively sealing a pipe orifice, which overcomes the deficiencies of the above-mentioned prior art and can effectively solve the problem that the prior device needs to shake a handle for locking, which is cumbersome and inconvenient to operate.

[0005] The technical solution of the present utility model is achieved through the following measures: a device for quickly and non-destructively sealing a pipe orifice, comprising a cover body, a sliding rod and a connecting rod; a mounting hole is provided in the middle of the cover body, the right part of the sliding rod is installed in the mounting hole, a pull rod is fixedly connected to the right end of the sliding rod, a limiting plate is fixedly connected to the left part of the sliding rod, a spring is installed on the sliding rod between the limiting plate and the cover body, at least two rotating rods are symmetrically hinged at the left end of the sliding rod, a rotating support plate is hinged at the outer end of the rotating rod, a rotating tube is installed on the outer side of the middle part of the rotating rod, the left end of the connecting rod is hinged to the rotating tube, and the right end of the connecting rod is fixedly connected to the cover body.

[0006] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution:

[0007] A first mounting groove communicating with the mounting hole is provided on the left end surface of the cover body, and the spring is located in the first mounting groove.

[0008] The outer diameter of the limiting plate is smaller than or equal to the inner diameter of the first mounting groove.

[0009] A second mounting groove is provided on the left end surface of the outer periphery of the cover body.

[0010] A handle is fixedly connected to the right end of the middle part of the cover body.

[0011] The handle is a U-shaped handle with an opening facing left. The pull rod is located inside the handle, and there is a distance between the right end of the pull rod and the handle.

[0012] A buffer pad is fixedly connected to the outer side of the rotating support plate.

[0013] The utility model has a reasonable and compact structure and is easy to use. The interactive force between the cover body and the rotating support plate on the pipe to be blocked forms a firm connection between the utility model and the pipe to be blocked, which is not easy to slip. The cover body can tightly seal the pipe to be blocked to prevent impurities from entering the pipe. The operator only needs to simply pull the pull rod and use the handle to fix the position to quickly complete the installation and disassembly of the utility model. There is no need for complicated tools or long-term operation, and the port of the pipe to be blocked will not be damaged. It has the characteristics of safety and reliability, convenient operation, and greatly improved work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attachment Figure 1 This is a schematic diagram of the main cross-sectional structure of the best embodiment of the utility model in working state.

[0015] Attachment Figure 2 For attachment Figure 1 Schematic diagram of the main structure.

[0016] The codes in the accompanying drawings are: 1 is the cover body, 2 is the sliding rod, 3 is the connecting rod, 4 is the mounting hole, 5 is the pull rod, 6 is the limit plate, 7 is the spring, 8 is the rotating rod, 9 is the rotating support plate, 10 is the rotating tube, 11 is the pipe to be blocked, 12 is the first mounting groove, 13 is the second mounting groove, and 14 is the handle. DETAILED DESCRIPTION

[0017] The present invention is not limited by the following embodiments, and specific implementation methods can be determined based on the technical solution of the present invention and actual conditions.

[0018] In this utility model, for the convenience of description, the relative position relationship of each component is described based on the Figure 1 The positional relationships of front, back, top, bottom, left, and right are described in the layout of the manual. Figure 1 The layout direction is determined by the

[0019] The present invention will be further described below in conjunction with the embodiments and accompanying drawings:

[0020] As attached Figure 1 、 2 As shown, the pipe orifice rapid and lossless plugging device includes a cover body 1, a sliding rod 2 and a connecting rod 3; a mounting hole 4 is provided in the middle of the cover body 1, the right part of the sliding rod 2 is installed in the mounting hole 4, a pull rod 5 is fixedly connected to the right end of the sliding rod 2, a limiting plate 6 is fixedly connected to the left part of the sliding rod 2, a spring 7 is installed on the sliding rod 2 between the limiting plate 6 and the cover body 1, at least two rotating rods 8 are symmetrically hinged at the left end of the sliding rod 2, a rotating support plate 9 is hinged at the outer end of the rotating rod 8, a rotating tube 10 is installed on the outer side of the middle part of the rotating rod 8, the left end of the connecting rod 3 is hinged to the rotating tube 10, and the right end of the connecting rod 3 is fixedly connected to the cover body 1. In this way, the interaction force between the cover body 1 and the rotating support plate 9 on the pipe to be blocked 11 forms a firm connection between the utility model and the pipe to be blocked, which is not easy to slip, wherein the cover body 1 can achieve a tight seal on the pipe to be blocked 11 to prevent impurities from entering the pipe; the operator only needs to simply pull the pull rod 5 and use the handle 14 to fix the position to quickly complete the installation and disassembly of the utility model, without the need for complicated tools or long-term operation, and will not damage the port of the pipe to be blocked 11. It has the characteristics of safety and reliability, facilitates operation, and greatly improves work efficiency.

[0021] The above-mentioned pipe orifice rapid and lossless plugging device can be further optimized and / or improved according to actual needs:

[0022] As attached Figure 1 As shown, the left end surface of the cover 1 is provided with a first mounting groove 12 that communicates with the mounting hole 4. The spring 7 is located within the first mounting groove 12. Thus, by pulling the pull rod 5, the spring 7 is placed in a compressed or slightly compressed state within the first mounting groove 12. One end of the spring 7 can be fixedly connected to the cover 1, and the other end of the spring 7 can be fixedly connected to the limit plate 6.

[0023] As attached Figure 1 As shown, the outer diameter of the limiting plate 6 is less than or equal to the inner diameter of the first mounting groove 12. In this way, when the pull rod 5 is pulled, it is convenient for the limiting plate 6 to enter the first mounting groove 12.

[0024] As attached Figure 1As shown, a second mounting groove 13 is provided on the left end surface of the outer periphery of the cover body 1. During use, the outer end of the pipe 11 to be blocked is installed in the second mounting groove 13 on the cover body 1, and then the pull rod 5 is slightly pressed. At this time, the spring 7 is in a slightly compressed state, causing the rotating support plate 9 to be pressed against the inner wall of the pipe 11 to be blocked. During disassembly, the pull rod 5 is pulled. At this time, the spring 7 is in a compressed state, causing the rotating support plate 9 to separate from the inner wall of the pipe 11 to be blocked, thereby achieving disassembly.

[0025] As attached Figure 1 、 2 As shown, a handle 14 is fixedly connected to the right end of the middle part of the cover body 1. The handle 14 is convenient for operation and carrying.

[0026] As attached Figure 1 、 2 As shown, the handle 14 is a U-shaped handle with an opening facing left, and the pull rod 5 is located in the handle 14, with a distance between the right end of the pull rod 5 and the handle 14. The pull rod 5 is convenient for push-pull operations.

[0027] As required, a buffer pad is fixedly connected to the outer side of the rotating support plate 9. The buffer pad prevents the rotating support plate 9 from rubbing and damaging the inner wall of the pipeline.

[0028] Advantages of this utility model:

[0029] 1. Quick Installation and Disassembly: Thanks to the spring-driven sliding lever 2 and rotating lever 8 mechanism, the operator can quickly install the utility model by simply pinching (pulling) the lever 5 and securing it with the handle 14. Disassembly is equally quick, requiring no complicated tools or lengthy operation.

[0030] 2. Non-destructive plugging: This design does not cause any damage to the port of the pipe 11 to be plugged, avoiding the need for subsequent groove processing caused by welding steel plates in the traditional method, thereby saving time and cost.

[0031] 3. Enhanced stability: The utility model ensures close contact with the pipe to be blocked 11 through the mechanical linkage of the rotating support plate 9 and the sliding rod 2, effectively preventing slippage due to vibration or external force during use.

[0032] 4. Wide adaptability: This design principle is applicable to pipes 11 to be blocked of different sizes. Only the sizes of relevant components need to be adjusted to meet the requirements of a wide range of pipe diameters, thereby improving the versatility and flexibility of the present invention.

[0033] 5. Dustproof and waterproof: The utility model can effectively prevent dust, moisture and other impurities from entering the interior of the pipe to be blocked 11, protect the pipe to be blocked 11 from being clean, and provide good environmental conditions for subsequent welding or installation work.

[0034] 6. Easy to operate: The entire blocking process only requires one person to operate, which reduces the manpower burden and improves work efficiency.

[0035] 7. Economical and efficient: It reduces the dependence on special tools and reduces maintenance costs. At the same time, due to its fast and non-destructive characteristics, it also indirectly saves material and time costs.

[0036] In summary, the present invention has a reasonable and compact structure and is easy to use. The interaction between the cover 1 and the rotating support plate 9 on the pipe to be blocked 11 forms a firm connection between the present invention and the pipe to be blocked 11, which is not easy to slip. The cover 1 can achieve a tight seal on the pipe to prevent impurities from entering the pipe. The operator only needs to simply pull the pull rod 5 and use the handle 14 to fix the position to quickly complete the installation and removal of the present invention. There is no need for complex tools or long-term operation, and the pipe port will not be damaged. It has the characteristics of safety and reliability, facilitates operation, and greatly improves work efficiency. The present invention not only solves the problems existing in traditional blocking methods, but also significantly improves construction efficiency and safety. It is an ideal pipeline construction auxiliary tool.

[0037] The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the requirements of different situations.

Claims

1. A rapid and non-destructive plugging device for a pipe orifice, characterized in that It includes a cover body, a sliding rod and a connecting rod; a mounting hole is provided in the middle of the cover body, the right part of the sliding rod is installed in the mounting hole, a pull rod is fixedly connected to the right end of the sliding rod, a limiting plate is fixedly connected to the left part of the sliding rod, a spring is installed on the sliding rod between the limiting plate and the cover body, at least two rotating rods are symmetrically hinged at the left end of the sliding rod, a rotating support plate is hinged at the outer end of the rotating rod, a rotating tube is installed on the outer side of the middle part of the rotating rod, the left end of the connecting rod is hinged to the rotating tube, and the right end of the connecting rod is fixedly connected to the cover body.

2. The rapid and non-destructive sealing device for pipe orifices according to claim 1 is characterized in that A first mounting groove communicating with the mounting hole is provided on the left end surface of the cover body, and the spring is located in the first mounting groove.

3. The rapid and non-destructive sealing device for pipe orifices according to claim 2 is characterized in that The outer diameter of the limiting plate is smaller than or equal to the inner diameter of the first installation groove.

4. The rapid and non-destructive plugging device for a pipe orifice according to claim 1, 2 or 3, characterized in that A second mounting groove is provided on the left end surface of the outer periphery of the cover body.

5. The rapid and non-destructive plugging device for a pipe orifice according to claim 1, 2 or 3, characterized in that A handle is fixedly connected to the right end of the middle part of the cover body.

6. The rapid and non-destructive sealing device for a pipe orifice according to claim 4 is characterized in that A handle is fixedly connected to the right end of the middle part of the cover body.

7. The rapid and non-destructive sealing device for a pipe orifice according to claim 5 is characterized in that The handle is a U-shaped handle with an opening facing left. The pull rod is located inside the handle, and there is a distance between the right end of the pull rod and the handle.

8. The rapid and non-destructive sealing device for a pipe orifice according to claim 6 is characterized in that The handle is a U-shaped handle with an opening facing left. The pull rod is located inside the handle, and there is a distance between the right end of the pull rod and the handle.

9. The rapid and non-destructive plugging device for a pipe orifice according to claim 1, 2 or 3, characterized in that A buffer pad is fixedly connected to the outer side of the rotating support plate.

10. The pipe orifice rapid and lossless plugging device according to claim 8, characterized in that A buffer pad is fixedly connected to the outer side of the rotating support plate.

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