Protective device for chemical safety

Abstract

The utility model discloses a protective device for chemical safety, which relates to the technical field of flange protection, and comprises a metal protective cover for protecting the butt joint of flanges of two pipelines, and the metal protective cover comprises a U-shaped metal cover and a U-shaped butt joint groove; the whole shape of the U-shaped metal cover is of a half straight notch structure, the U-shaped butt joint grooves are symmetrically formed in the two sides of the U-shaped metal cover, the U-shaped metal cover is connected with a plugging connecting assembly through the U-shaped butt joint grooves, and the plugging connecting assembly is used for achieving connection and assembly of the metal protective cover and a pipeline and meanwhile achieving sealing operation of the metal protective cover and the pipeline. Compared with a traditional metal protective cover structure, the combined structure of the metal protective cover and the plugging connecting assembly has the advantages that the impact resistance is good, the sealing performance is good, and the protection effect on the flange is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange protection technical field, specifically a kind of protection device for chemical safety. BACKGROUND

[0002] In the harsh environment of chemical industry, flange connection is easily affected by corrosion, medium leakage and mechanical damage, and chemical pipeline flange protection is an important measure to ensure production safety, prevent leakage and prolong the service life of equipment;

[0003] Flange protection cover is a kind of protection device for protecting pipeline flange connection, mainly used to prevent flange connection part from being affected by external environment corrosion, mechanical damage or medium leakage, and common types include: metal flange protection cover, usually made of stainless steel or aluminum alloy, good durability;Plastic / Composite protection cover, light in weight, corrosion resistant, such as: PVC, PP and other materials.

[0004] The existing metal flange protection cover has good impact resistance and can effectively prevent external damage, but the sealing performance of the assembly docking position of the metal flange protection cover is poor, therefore, a protection device for chemical safety is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at: in order to solve the problem in the above background, provide a kind of protection device for chemical safety.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of protection device for chemical safety, including the metal protection cover for the flange docking of two pipelines is protected, the metal protection cover includes U-shaped metal cover, U-shaped docking groove;

[0007] The overall shape of the U-shaped metal cover is half straight slot structure, the U-shaped docking groove is symmetrically provided on the two sides of the U-shaped metal cover, the U-shaped metal cover is connected with the plugging connection assembly through the U-shaped docking groove, and the plugging connection assembly is used to realize the connection and assembly of the metal protection cover and the pipeline, and simultaneously realize the sealing operation of the metal protection cover and the pipeline;

[0008] The metal protection cover includes semicircular rubber sleeve, plugging rubber seat, rectangular rubber sleeve and side convex type clamping strip.

[0009] The semicircular rubber sleeve is clamped inside the U-shaped docking groove, the U-shaped metal cover is sleeved on the outside of the pipeline through the U-shaped docking groove and is attached to the outside of the pipeline through the semicircular rubber sleeve.

[0010] The rectangular rubber sleeve is fixed to the rear end of the plugging rubber seat, and the side convex type clamping strip is provided with four and symmetrically fixed to the two sides of the rectangular rubber sleeve in pairs.

[0011] The rectangular rubber sleeve is inserted into the inside of the U-shaped metal cover from the opening at the front end of the U-shaped metal cover, the side convex type clamping strip is clamped at the edge of the U-shaped butt joint groove, and the rectangular rubber sleeve and the semicircular rubber sleeve are attached to realize clamping and sealing with the pipeline.

[0012] As a further scheme of the utility model: the connecting plate is fixed at the position close to the opening of the upper and lower ends of the U-shaped metal cover, and screw holes are formed in the connecting plate;

[0013] Screw holes are formed in the connecting plate, two installation holes are respectively aligned with the two screw holes, bolts are penetrated through the installation holes and are threadedly connected with the screw holes and are screwed, and the installation holes are used for realizing the connection and fixation of the sealing rubber seat and the U-shaped metal cover and the assembly and fixation of the metal protective cover and the pipeline.

[0014] As a further scheme of the utility model: the one end of the sealing rubber seat close to the U-shaped metal cover is formed with a rectangular butt joint groove, and the rectangular butt joint groove is used for inserting the front end edge of the U-shaped metal cover.

[0015] As a further scheme of the utility model: the inner wall size of the U-shaped butt joint groove is greater than the outer diameter of the pipeline, and the semicircular grooves are formed at the both sides of the rear end of the rectangular rubber sleeve, and the inner wall diameters of the semicircular rubber sleeve and the semicircular groove are set according to the outer wall of the pipeline.

[0016] As a further scheme of the utility model: the outer wall size of the rectangular rubber sleeve is matched with the inner wall size of the straight part of the U-shaped metal cover, and the inner wall sizes of the U-shaped metal cover and the rectangular rubber sleeve are greater than the outer diameter of the flange.

[0017] As a further scheme of the utility model: the sealing rubber seat, the rectangular rubber sleeve, the side convex type clamping strip, the installation hole and the rectangular butt joint groove are integrally formed by a rubber injection molding process, and the semicircular rubber sleeve is formed by a rubber injection molding process.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] Compared with the traditional metal protective cover structure, the combined structure of the metal protective cover and the plugging connection assembly not only has good impact resistance, but also has good sealing performance, and the protection effect on the flange is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a structural schematic view of the utility model;

[0021] Fig. 2 It is an assembly schematic view of the metal protective cover and the pipeline of the utility model;

[0022] Fig. 3 It is a split schematic view of the plugging connection assembly and the metal protective cover of the utility model;

[0023] Fig. 4 is a sectional view of the combined state of the metal protective cover and the plugging connection assembly of the utility model;

[0024] Fig. 5 is another view of the disassembled plugging connection assembly and the metal protective cover of the utility model.

[0025] In the figure: 1, pipeline; 2, flange; 3, metal protective cover; 301, U-shaped metal cover; 302, connecting plate; 303, screw hole; 304, U-shaped butt joint groove; 4, plugging connection assembly; 401, semicircular rubber sleeve; 402, plugging rubber seat; 403, rectangular rubber sleeve; 404, side convex type clamping strip; 405, mounting hole; 406, bolt; 407, rectangular butt joint groove. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figs. 1-5 In the embodiments of the utility model, a protective device for chemical safety comprises a metal protective cover 3 for protecting the butt joint of the flanges 2 of two pipelines 1, wherein the metal protective cover 3 comprises a U-shaped metal cover 301 and a U-shaped butt joint groove 304.

[0028] The overall shape of the U-shaped metal cover 301 is half of a straight slot structure, the U-shaped butt joint groove 304 is symmetrically arranged on the two sides of the U-shaped metal cover 301, and the U-shaped metal cover 301 is connected with a plugging connection assembly 4 through the U-shaped butt joint groove 304. The plugging connection assembly 4 is used to realize the connection and assembly of the metal protective cover 3 and the pipeline 1, and simultaneously realize the sealing operation of the metal protective cover 3 and the pipeline 1.

[0029] The metal protective cover 3 comprises a semicircular rubber sleeve 401, a plugging rubber seat 402, a rectangular rubber sleeve 403 and a side convex type clamping strip 404.

[0030] The semicircular rubber sleeve 401 is clamped on the inner side of the U-shaped butt joint groove 304, the U-shaped metal cover 301 is sleeved on the outer side of the pipeline 1 through the U-shaped butt joint groove 304 and is attached to the outer side of the pipeline 1 through the semicircular rubber sleeve 401.

[0031] The rectangular rubber sleeve 403 is fixed to the rear end of the plugging rubber seat 402, and the side convex type clamping strip 404 is arranged in four and symmetrically fixed to the two sides of the rectangular rubber sleeve 403 in two groups.

[0032] The rectangular rubber sleeve 403 is inserted into the inner side of the U-shaped metal cover 301 from the opening at the front end of the U-shaped metal cover 301, and the side convex type clamping strip 404 is clamped at the edge of the U-shaped butt joint groove 304, and the rectangular rubber sleeve 403 is attached to the semicircular rubber sleeve 401 to realize clamping and sealing with the pipeline 1;

[0033] The connecting plate 302 is fixed at the position close to the opening of the U-shaped metal cover 301, and the screw hole 303 is formed on the connecting plate 302;

[0034] The semicircular rubber sleeve 401 is symmetrically provided with the mounting hole 405 at the front end, and the two mounting holes 405 are respectively aligned with the two screw holes 303, and the bolt 406 is penetrated through the mounting hole 405 and is screwed with the screw hole 303 to realize the connection and fixation of the sealing rubber seat 402 and the U-shaped metal cover 301, and the assembly and fixation of the metal protective cover 3 and the pipeline 1.

[0035] In this embodiment, when the protective device protects the flange 2 connection, the installation method is as follows:

[0036] First, the semicircular rubber sleeve 401 is clamped in the U-shaped butt joint groove 304, then the U-shaped metal cover 301 is sleeved on the outer side of the two pipelines 1 through the U-shaped butt joint groove 304, and the flange 2 is covered in the inner side of the U-shaped metal cover 301, and the semicircular rubber sleeve 401 is attached to the outer side of the pipeline 1;

[0037] Then, the rectangular rubber sleeve 403 is inserted into the inner side of the U-shaped metal cover 301 from the opening at the front end of the U-shaped metal cover 301, and the side convex type clamping strip 404 is clamped at the edge of the U-shaped butt joint groove 304, and the rectangular rubber sleeve 403 is attached to the other side of the pipeline 1 and is attached to the semicircular rubber sleeve 401;

[0038] Then, the bolt 406 is penetrated through the mounting hole 405 and is screwed with the screw hole 303, and then the sealing connection assembly 4 and the metal protective cover 3 are connected, and the connection of the metal protective cover 3 and the pipeline 1 is completed, and then the U-shaped metal cover 301 and the sealing connection assembly 4 can be rotated at a certain angle, so that the U-shaped metal cover 301 faces the pedestrian section, so as to resist external impact;

[0039] Through the wrapping of the semicircular rubber sleeve 401 and the rectangular rubber sleeve 403 on the pipeline 1 and the shielding and sealing of the U-shaped butt joint groove 304, the sealing operation of the metal protective cover 3 and the pipeline 1 can be realized, and through the combined structure of the metal protective cover 3 and the sealing connection assembly 4, compared with the traditional metal protective cover structure, not only has good impact resistance, but also has good sealing performance, and further improves the protection effect of the flange.

[0040] Please refer to Figs. 4-5The rectangular butt joint groove 407 is used for inserting the front end edge of the U-shaped metal cover 301.

[0041] In the embodiment, the front end edge of the U-shaped metal cover 301 and the sealing rubber base 402 can keep good sealing effect by inserting the front end edge of the U-shaped metal cover 301 into the rectangular butt joint groove 407.

[0042] Please refer to Figs. 1-4 The inner wall size of the U-shaped butt joint groove 304 is greater than the outer diameter of the pipeline 1, and the rear end of the rectangular rubber sleeve 403 is formed with a semicircular groove.

[0043] The outer wall size of the rectangular rubber sleeve 403 matches the inner wall size of the straight part of the U-shaped metal cover 301, and the inner wall size of the U-shaped metal cover 301 and the rectangular rubber sleeve 403 is greater than the outer diameter of the flange 2.

[0044] In the embodiment, the semicircular rubber sleeve 401 and the semicircular groove with different diameters can be used to match pipelines with different diameters, and the U-shaped metal cover 301 can be universal, effectively improving the use flexibility and application range of the U-shaped metal cover 301.

[0045] Please refer to Figs. 1-5 The sealing rubber base 402, the rectangular rubber sleeve 403, the side convex clamping strip 404, the mounting hole 405 and the rectangular butt joint groove 407 are integrally formed by rubber injection molding process, and the semicircular rubber sleeve 401 is formed by rubber injection molding process.

[0046] In the embodiment, the sealing connection assembly 4 is formed by rubber injection molding process, so that it has good sealing effect as a whole, is convenient for production and processing, and has a certain buffering effect. When the metal protective cover 3 is impacted from outside, the sealing connection assembly 4 can buffer the impact force, so as to reduce the impact on the pipeline 1.

[0047] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A chemical safety protective device, comprising a metal protective cover (3) for protecting the flange (2) joint of two pipes (1), characterized in that, The metal protective cover (3) includes a U-shaped metal cover (301) and a U-shaped docking groove (304); The U-shaped metal cover (301) has an overall shape of half a straight groove structure. The U-shaped docking groove (304) is symmetrically opened on both sides of the U-shaped metal cover (301). The U-shaped metal cover (301) is connected to a sealing connection assembly (4) through the U-shaped docking groove (304). The sealing connection assembly (4) is used to realize the connection and assembly of the metal protective cover (3) and the pipe (1), and at the same time realize the sealing operation of the metal protective cover (3) and the pipe (1). The metal protective cover (3) includes a semi-circular rubber sleeve (401), a sealing rubber seat (402), a rectangular rubber sleeve (403), and a side-convex retaining strip (404); The semi-circular rubber sleeve (401) is snapped into the inner side of the U-shaped docking groove (304), and the U-shaped metal cover (301) is sleeved on the outside of the pipe (1) through the U-shaped docking groove (304) and adhered to the outside of the pipe (1) through the semi-circular rubber sleeve (401); The rectangular rubber sleeve (403) is fixed to the rear end of the sealing rubber seat (402), and four side-convex clips (404) are provided and symmetrically fixed to both sides of the rectangular rubber sleeve (403) in pairs. The rectangular rubber sleeve (403) is inserted into the inside of the U-shaped metal cover (301) through the front opening of the U-shaped metal cover (301). The side-convex locking strip (404) is engaged at the edge of the U-shaped docking groove (304). The rectangular rubber sleeve (403) and the semi-circular rubber sleeve (401) are fitted together to achieve clamping and sealing with the pipe (1).

2. The chemical safety protective device according to claim 1, characterized in that, The U-shaped metal cover (301) has a connecting plate (302) fixed at the upper and lower ends near the opening, and the connecting plate (302) has a screw hole (303). The semi-circular rubber sleeve (401) has symmetrical mounting holes (405) at its front end. The two mounting holes (405) are aligned with the two screw holes (303) respectively. The bolts (406) pass through the mounting holes (405) and are threadedly connected to the screw holes (303) and tightened. This is used to connect and fix the sealing rubber seat (402) and the U-shaped metal cover (301) and to assemble and fix the metal protective cover (3) and the pipe (1).

3. A chemical safety protective device according to claim 2, characterized in that, The sealing base (402) has a rectangular mating groove (407) formed at one end near the U-shaped metal cover (301), and the rectangular mating groove (407) is used for the insertion of the front edge of the U-shaped metal cover (301).

4. A chemical safety protective device according to claim 1, characterized in that, The inner wall size of the U-shaped docking groove (304) is larger than the outer diameter of the pipe (1). The rectangular rubber sleeve (403) has semi-circular grooves formed on both sides of its rear end. The inner wall diameter of the semi-circular rubber sleeve (401) and the semi-circular groove is set according to the outer wall of the pipe (1).

5. A chemical safety protective device according to claim 1, characterized in that, The outer wall dimension of the rectangular rubber sleeve (403) matches the inner wall dimension of the straight section of the U-shaped metal cover (301), and the inner wall dimensions of the U-shaped metal cover (301) and the rectangular rubber sleeve (403) are greater than the outer diameter of the flange (2).

6. A chemical safety protective device according to claim 3, characterized in that, The sealing rubber seat (402), rectangular rubber sleeve (403), side-convex retaining strip (404), mounting hole (405), and rectangular mating groove (407) are integrally formed by rubber injection molding, and the semi-circular rubber sleeve (401) is formed by rubber injection molding.

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