Safety protective cover

Abstract

A safety protective cover comprises a pair of semi-arc-shaped plates arranged on a pipeline in a sleeving mode, hemispherical shells are arranged at the inner side ends of the semi-arc-shaped plates, outer mounting plates are arranged on the outer walls of the semi-arc-shaped plates, arc-shaped plates are arranged on the outer walls of the hemispherical shells, the arc-shaped plates are connected and fixed through screws and nuts, the hemispherical shells define a spherical shell with a spherical cavity, and the spherical cavity is internally provided with a through hole. The arc-shaped plate is tightly attached to the periphery of the pipeline and used for guaranteeing the sealing effect between the pipeline and the protective cover, the butt joint position of the pipeline can be protected, the protective effect is improved, and meanwhile first-aid repair of the leakage position is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of chemical safety production technology, and in particular to a safety protective cover. Background Technology

[0002] When transporting chemical gases or liquids, pipelines are typically used to prevent environmental pollution. These pipelines consist of multiple interconnected pipes. However, in chemical liquid or gas production, leaks often occur due to poor sealing at these pipe joints. To ensure the safety of chemical production, protective covers are installed at the joints, and detectors are mounted on these covers. The covers prevent direct leakage of gas or liquid, while the detectors facilitate leak location and pipeline repair. However, in actual use, it has been found that the sealing effectiveness of these protective covers decreases over time, rendering them ineffective and leading to further leaks of chemical gases or liquids. Utility Model Content

[0003] This utility model provides a safety shield to overcome the shortcomings of the prior art. It protects the pipe joints by combining the injection of inert gas at a certain pressure with pressure detection, thereby ensuring the effectiveness of the protection and making it highly practical.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:

[0005] A safety shield includes a pair of semi-circular plates fitted onto a pipeline. The inner end of each semi-circular plate has a hemispherical shell, and the outer wall of the semi-circular plates has an outer mounting plate. The outer wall of the hemispherical shell has an arc-shaped plate. The arc-shaped plates are connected and fixed together by screws and nuts. The hemispherical shells together form a spherical shell with a spherical cavity. The arc-shaped plates are tightly attached to the outer circumference of the pipeline to ensure a tight seal between the pipeline and the shield. In practical applications, an inert gas can be injected into the spherical shell. When the gas is injected, the pressure inside the spherical shell becomes greater than the pressure inside the pipeline, thus preventing gas leakage. Even if a leak occurs, because the external pressure is greater than the internal pressure, the gas or liquid will not leak immediately. Instead, it will diffuse from a higher concentration to a lower concentration once the pressures equalize. Furthermore, because the gas inside the spherical shell is an inert gas, it will not react with the chemical gases or liquids inside the pipeline, thus ensuring safety during transport.

[0006] One of the hemispherical shells is equipped with a connecting pipe, and a pressure sensor is sealed at the outer end of the connecting pipe to detect the pressure inside the shell in real time, thereby determining whether a leak has occurred. If the pressure decreases, the pressure sensor will detect the decrease, facilitating subsequent emergency repairs. The other hemispherical shell is equipped with a connecting valve to facilitate the injection of inert gas.

[0007] Furthermore, in order to improve the sealing effect of the protective cover, a soft rubber gasket is provided between the mounting outer plate and the arc plate, and the space between the mounting outer plate and the arc plate is filled with sealant.

[0008] Furthermore, in order to ensure that the mounting outer panel and the curved panel are tightly attached together, multiple clamping rods are provided on the mounting outer panel. A lower clamping plate is inserted through the clamping rod located on the lower side. A rotating head is provided at the lower end of the lower clamping plate. A rotating shaft is provided at the lower end of the rotating head. An L-shaped plate is rotatably mounted on the rotating shaft. An end plate is provided at the outer end of the L-shaped plate. A rotating head is rotatably mounted on the end plate. A fixing screw is provided on the rotating head. A lower pressing head is screwed onto the fixing screw. The inner end of the lower pressing head is inserted through the upper clamping plate. The clamping rod located on the upper side is inserted through the upper clamping plate.

[0009] Furthermore, to facilitate gas injection and ensure a good seal after inert gas injection, the connecting valve includes an inner tube on the inner wall of the hemispherical shell. The inner end of the inner tube is closed, and multiple vent holes are provided around the inner tube. An inner ring is provided inside the outer end of the inner tube, and a movable tube passes through the inner ring. A cap is provided at the inner end of the movable tube, and an end cap is provided at the outer end of the inner tube. The inner end of the end cap is pressed against the outer end of the movable tube.

[0010] Furthermore, the inner end of the end cap is provided with an inner post, which passes through the outer end of the movable tube to improve the sealing effect.

[0011] Furthermore, a conical groove is formed inside the cover, with the outer end of the conical groove being the smaller end, to facilitate the inflation operation of inert gas.

[0012] Furthermore, in order to improve the sealing effect between the cap and the inner tube, a truncated cone is provided on the inner end of the inner tube, and the cap is fastened to the truncated cone.

[0013] The advantages of the above technical solution are:

[0014] This invention can protect the pipe joint, improving the protection effect, and also facilitates emergency repairs of leaks. Attached Figure Description

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.

[0016] Figure 1A three-dimensional structural diagram of one embodiment is shown.

[0017] Figure 2 A magnified view of point A is shown.

[0018] Figure 3 A cross-sectional view of one embodiment is shown. Detailed Implementation

[0019] like Figures 1-3 As shown, a safety guard includes a pair of semi-circular plates 20 fitted onto a pipe 1. The inner end of the semi-circular plate 20 is provided with a hemispherical shell 2. An outer mounting plate 22 is provided on the outer wall of the semi-circular plate 20. An arc plate 21 is provided on the outer wall of the hemispherical shell 2. The arc plates 21 are connected and fixed together by screws and nuts. A soft rubber pad is provided between the outer mounting plate 22 and the arc plate 21, and the space between the outer mounting plate 22 and the arc plate 21 is filled with sealant.

[0020] Multiple locking rods 23 are provided on the mounting outer plate 22. A lower locking plate 24 is provided on the lower locking rod 23 located on the lower side. A rotating head is provided at the lower end of the lower locking plate 24. A rotating shaft 25 is provided at the lower end of the rotating head. An L-shaped plate 26 is rotatably mounted on the rotating shaft 25. An end plate 27 is provided at the outer end of the L-shaped plate 26. A rotating head 28 is rotatably mounted on the end plate 27. A fixing screw 29 is provided on the rotating head 28. A lower pressing head 30 is screwed onto the fixing screw 29. The inner end of the lower pressing head 30 passes through the upper locking plate 31. The locking rod 23 located on the upper side passes through the upper locking plate 31.

[0021] One of the hemispherical shells 2 is provided with a connecting pipe 4, and a pressure sensor 40 is sealed and installed on the outer end of the connecting pipe 4.

[0022] Another hemispherical shell 2 is equipped with a connecting valve. The connecting valve includes an inner tube 5 located on the inner wall of the hemispherical shell 2. The inner end of the inner tube 5 is closed, and multiple vent holes 50 are opened on the periphery of the inner tube 5. An inner ring 54 is provided inside the outer end of the inner tube 5, and a movable tube 55 passes through the inner ring 54. A cap 56 is provided on the inner end of the movable tube 55, and an end cap 51 is provided on the outer end of the inner tube 5. The inner end of the end cap 51 is pressed against the outer end of the movable tube 55. An inner insertion post 53 is provided on the inner end of the end cap 51 and passes through the outer end of the movable tube 55. A conical groove is formed inside the cap 56, and the outer end of the conical groove is the smaller end. A truncated cone 57 is provided on the inner end of the inner tube 5, and the cap 56 is fastened to the truncated cone 57.

[0023] In this embodiment, when inert gas is being filled, the operator removes the end cap 51, then pulls the cover 56 outward so that the movable tube 55 communicates with the inside of the spherical shell through the vent 50. Then, the movable tube 55 is connected to the inflation tube, and inert gas is injected into the inner spherical shell. After the injection is completed, the movable tube 55 is pushed inward so that the cover 56 is fastened on the truncated cone 57. Then, the inflation tube is removed from the movable tube 55, and the end cap 51 is installed on the inner tube 5.

[0024] In this embodiment, during installation, the hemispherical shells 2 are snapped together, with the connection point of the pipe 1 located inside the hemispherical shells 2. The arc-shaped plate 21 is then connected and fixed using screws and nuts. Before fixing, rubber gaskets and sealant are applied to the arc-shaped plate 21 and the pipe. The lower clamping plate 24 is then fitted onto the lower clamping rod 23, and the L-shaped plate 26 is rotated inward. The upper clamping rod 23 is then inserted onto the upper clamping plate 31. Finally, the outer plate 22 is pressed and sealed using the fixing screw 29. Sealant must be applied before installation.

[0025] When a leak occurs, the pressure inside the spherical shell is greater than the pressure inside pipe 1, which reduces the pressure inside the spherical shell. When the pressure decreases, the pressure sensor 40 transmits the signal to the control center, and then emergency repairs are carried out on the leak point.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A safety shield, characterized in that, Includes a pair of semi-arc plates (20) fitted on the pipe (1), the inner end of the semi-arc plate (20) is provided with a hemispherical shell (2), the outer wall of the semi-arc plate (20) is provided with an outer mounting plate (22), the outer wall of the hemispherical shell (2) is provided with an arc plate (21), and the arc plates (21) are connected and fixed by screws and nuts; One of the hemispherical shells (2) is provided with a connecting pipe (4), and a pressure sensor (40) is sealed and installed on the outer end of the connecting pipe (4). Another hemispherical shell (2) is equipped with a connecting valve.

2. The safety shield according to claim 1, characterized in that, A soft rubber pad is provided between the mounting outer plate (22) and the arc plate (21), and sealant is filled between the mounting outer plate (22) and the arc plate (21).

3. The safety shield according to claim 1, characterized in that, The mounting plate (22) is provided with multiple clamping rods (23). The clamping rod (23) located on the lower side is provided with a lower clamping plate (24). The lower end of the lower clamping plate (24) is provided with a rotating head. The lower end of the rotating head is provided with a rotating shaft (25). An L-shaped plate (26) is rotatably provided on the rotating shaft (25). An end plate (27) is provided on the outer end of the L-shaped plate (26). A rotating head (28) is rotatably provided on the end plate (27). A fixing screw (29) is provided on the rotating head (28). A lower pressure head (30) is screwed onto the fixing screw (29). The inner end of the lower pressure head (30) passes through the upper clamping plate (31). The clamping rod (23) located on the upper side passes through the upper clamping plate (31).

4. The safety shield according to claim 1, characterized in that, The connecting valve includes an inner tube (5) on the inner wall of a hemispherical shell (2). The inner end of the inner tube (5) is closed. Multiple vent holes (50) are opened on the periphery of the inner tube (5). An inner ring (54) is provided inside the outer end of the inner tube (5). A movable tube (55) is inserted inside the inner ring (54). A cap (56) is provided on the inner end of the movable tube (55). An end cap (51) is provided on the outer end of the inner tube (5). The inner end of the end cap (51) is pressed against the outer end of the movable tube (55).

5. The safety shield according to claim 4, characterized in that, The inner end of the end cap (51) is provided with an inner insertion post (53), which passes through the outer end of the movable tube (55).

6. The safety shield according to claim 4, characterized in that, The cover (56) has a conical groove formed inside, and the outer end of the conical groove is the small end.

7. The safety shield according to claim 4, characterized in that, The inner end of the inner tube (5) is provided with a truncated cone (57), and the cap (56) is fastened to the truncated cone (57).

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