Glass fiber reinforced plastic ventilating duct

Abstract

The utility model relates to a glass fiber reinforced plastic ventilation pipeline which comprises pipelines, a left connecting ring and a right connecting ring are respectively sleeved and fixed at two ends of the outer wall of each pipeline, a sealing ring is clamped between the right connecting ring of the left pipeline and the left connecting ring of the right pipeline, and the left connecting ring, the sealing ring and the right connecting ring jointly form a sealing piece. The device further comprises a protection part arranged on the periphery of the sealing part, the protection part comprises clamping rods and an elastic plate, the clamping rods are arranged outside the portions, on the two sides of the sealing part, of the pipeline, bolts for driving the two clamping rods to clamp the sealing part are arranged on the two clamping rods, and the elastic plate is connected between the ends, away from the pipeline, of the opposite faces of the two clamping rods. The elastic plate is an arc-shaped plate protruding towards the peripheral wall of the sealing piece, a top plate is connected to the side face, facing the peripheral wall of the sealing piece, of the elastic plate, and a sealing gasket making contact with the peripheral wall of the sealing piece is connected to the side face, facing the peripheral wall of the sealing piece, of the top plate. The utility model solves the problem that the sealing ring at the joint of the glass fiber reinforced plastic pipeline lacks a protection mechanism and is easy to corrode.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation ducts, in particular to a glass fiber reinforced plastic ventilation duct. Background Art

[0002] FRP ventilation duct, also known as FRP ventilation duct, is a non-metallic pipe made of resin and glass fiber through a special process. FRP ventilation duct is widely used in gas transportation in industries such as industry, petroleum, pharmaceuticals, landfills, chemicals, and sewage treatment. Sealing connection is crucial for FRP ventilation duct, which is directly related to the airtightness, safety and service life of the pipeline system. If the seal is poor, it will cause gas leakage, which will not only affect the ventilation effect, but also may pollute the environment and even cause safety accidents.

[0003] In order to achieve a sealed connection between FRP pipes, a sealing ring is provided at the FRP pipe connection. However, there is a lack of a protective mechanism outside the sealing ring. The sealing ring at the pipe connection is easily affected by external factors and corroded, which can easily lead to air leakage at the pipe connection. Summary of the invention

[0004] The utility model provides a FRP ventilation duct to solve the problem that the sealing ring at the connection of the FRP pipe lacks a protection mechanism and the sealing ring is easily corroded, and can improve the sealing performance of the connection of the FRP pipe.

[0005] In order to solve the above problems, the technical solution of the utility model is:

[0006] A glass fiber reinforced plastic ventilation duct comprises a duct, wherein a left link and a right link are respectively fixedly mounted on the two ends of the outer wall of each duct, a sealing ring is sandwiched between the right link of the left duct and the left link of the right duct, and the left link, the sealing ring and the right link together constitute a sealing member; further comprising a protective member arranged around the sealing member, the protective member comprising a clamping rod and an elastic plate, clamping rods are arranged outside the ducts on both sides of the sealing member, the two clamping rods are provided with bolts driving the two clamping rods to clamp the sealing member, an elastic plate is connected between the opposite surfaces of the two clamping rods away from one end of the duct, the elastic plate is an arc-shaped plate protruding toward the peripheral wall of the sealing member, a top plate is connected to the side of the elastic plate facing the peripheral wall of the sealing member, and a sealing gasket contacting the peripheral wall of the sealing member is connected to the side of the top plate facing the peripheral wall of the sealing member.

[0007] Furthermore, the clamping rod on the left part of the upper protective member is a rod body with a right-angled triangle in longitudinal section, and the front and rear ends of the clamping rod are flush with the front and rear sides of the pipe respectively; the bottom surface of the clamping rod is a plane in sliding contact with the outer wall of the pipe, the right side surface is a straight surface in contact with the left side surface of the right link, and the left side surface of the clamping rod is an inclined surface.

[0008] Furthermore, the length of the top plate matches the length of the peripheral wall corresponding to the seal, and the width of the top plate is smaller than the width of the peripheral wall corresponding to the seal; the size of the sealing gasket matches the size of the top plate.

[0009] Furthermore, the front and rear ends of the elastic plate of the upper protective member are arc-shaped edges, and the elastic plate is a plate body made of spring steel material.

[0010] Furthermore, the free end of the bolt passes through the left clamping rod, the left connecting ring, the sealing ring, the right connecting ring and the right clamping rod in sequence, and the bolt is limited by the nut.

[0011] Furthermore, the clamping rod, the left connecting ring, the sealing ring and the right connecting ring are all provided with bolt through holes for bolts to movably pass through.

[0012] Through the above technical solution, the beneficial effects of the utility model are:

[0013] When the seal of the utility model is connected with the protective member, the two clamping rods of the protective member are connected by bolts. The two clamping rods move relative to each other, which can drive the sealing ring on the seal to be compressed, thereby improving the sealing performance between the two pipes while realizing the connection between the two pipes. Moreover, when the two clamping rods move relative to each other, the top plate can be driven by the elastic plate to compress the sealing gasket, so that the outer peripheral wall of the seal is sealed and protected by the sealing gasket, and external moisture, corrosive liquid, etc. will not contact the sealing ring, thereby further improving the sealing performance of the connection between the two pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0016] Figure 3 It is a structural schematic diagram of a pipeline connecting a left link and a right link of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the protective member of the utility model;

[0018] Figure 5 It is a sectional front view of the utility model.

[0019] The numbers in the accompanying drawings are: 1, pipeline, 2, left link, 3, right link, 4, sealing ring, 5, clamping rod, 6, elastic plate, 7, bolt, 8, top plate, 9, sealing gasket, 10, nut, 11, bolt through hole. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0021] like Figure 1 to Figure 5 As shown, a glass fiber reinforced plastic ventilation duct comprises a duct 1, wherein the duct 1 is a pipe body made of glass fiber reinforced plastic material, and a left link 2 and a right link 3 are respectively fixedly mounted on the two ends of the outer wall of each duct 1, wherein the left link 2 and the right link 3 are both rectangular annular bodies, and a sealing ring 4 is sandwiched between the right link 3 of the left duct 1 and the left link 2 of the right duct 1, wherein the sealing ring 4 is an annular body made of elastic rubber and matched with the side of the left link 2, and the left link 2, the sealing ring 4 and the right link 3 together constitute a sealing member; and further comprising a protective member arranged around the sealing member, wherein the protective member comprises Including clamping rods 5 and elastic plates 6, clamping rods 5 are provided outside the pipes 1 on both sides of the seal, and bolts 7 for driving the two clamping rods 5 to clamp the seal are provided on the two clamping rods 5, and an elastic plate 6 is connected between the opposite surfaces of the two clamping rods 5 away from one end of the pipe 1, and the elastic plate 6 is an arc-shaped plate protruding toward the peripheral wall of the seal, and a top plate 8 is connected to the side of the elastic plate 6 facing the peripheral wall of the seal, and the top plate 8 is a rectangular plate body, and a sealing gasket 9 contacting the peripheral wall of the seal is connected to the side of the top plate 8 facing the peripheral wall of the seal, and the sealing gasket 9 is a long strip sheet made of elastic rubber.

[0022] The clamping rod 5 on the left part of the protective member on the upper side is a rod body with a right-angled triangle in longitudinal section, and the front and rear ends of the clamping rod 5 are flush with the front and rear side surfaces of the pipe 1 respectively; the bottom surface of the clamping rod 5 is a plane in sliding contact with the outer wall of the pipe 1, the right side surface is a straight surface in contact with the left side surface of the right link, and the left side surface of the clamping rod 5 is an inclined surface; the two clamping rods 5 on the same protective member are symmetrical.

[0023] The length of the top plate 8 matches the length of the peripheral wall corresponding to the seal, the width of the top plate 8 is smaller than the width of the peripheral wall corresponding to the seal, and the left and right sides of the top plate are respectively located on the left and right sides of the sealing ring; the size of the sealing gasket 9 matches the size of the top plate 8.

[0024] The front and rear ends of the elastic plate 6 of the upper protective member are arc-shaped edges, and the elastic plate 6 is a plate body made of spring steel material.

[0025] The free end of the bolt 7 passes through the left clamping rod 5 , the left connecting ring 2 , the sealing ring 4 , the right connecting ring 3 and the right clamping rod 5 in sequence, and the bolt 7 is limited by the nut 10 .

[0026] The clamping rod 5, the left connecting ring 2, the sealing ring 4 and the right connecting ring 3 are all provided with bolt through holes 11 for bolts to movably pass through.

[0027] When in use, a sealing ring 4 is clamped between the right link 3 of the left pipe 1 and the left link 2 of the right pipe 1, and a protective piece is arranged outside each peripheral wall of the sealing member composed of the left link 2, the sealing ring 4 and the right link 3. The two clamping rods 5 on the protective piece are respectively placed on the outer walls of the pipes 1 on both sides of the sealing member, and the elastic plate 6 of the protective piece protrudes toward the peripheral wall of the sealing member. At this time, the sealing gasket 9 on the protective piece faces the corresponding peripheral wall of the sealing member, so that the free end of the bolt 7 passes through the bolt through hole 11 on the left clamping rod 5, the left link 2, the sealing ring 4, the right link 3 and the right clamping rod 5 in sequence, and the nut 10 is screwed on the free end of the bolt 7. During the process of tightening the nut 10, the head of the bolt 7 presses against the inclined surface of the left clamping rod 5, and the nut 10 presses against the inclined surface of the right clamping rod 5. The two clamping rods 5 on the same protective piece move relative to each other, which can drive the left link 2 and The right link 3 drives the connected pipes to move relative to each other, and the sealing ring 4 is compressed, so that the sealing between the two pipes 1 is improved while the connection between the two pipes 1 is realized; and in the process of relative movement of the two clamping rods 5, the bending deformation of the elastic plate 6 becomes larger, and the clamping rod 5 with a right-angled triangle cross-section can keep the clamping rod 5 stable and strong during the relative movement of the clamping rods, and the clamping rod 5 will not be tilted or broken due to the reaction force of the elastic plate 6; when the bending deformation of the elastic plate 6 becomes larger, the elastic plate 6 drives the top plate 8 to move toward the corresponding peripheral wall of the sealing member, and the sealing gasket 9 on the top plate 8 is compressed, so that the peripheral wall of the sealing member is sealed and protected by the sealing gasket 9. Due to the protection of the sealing gasket 9, external moisture, corrosive liquid, etc. will not contact the sealing ring 4, and will not cause corrosion of the sealing ring 4, thereby improving the sealing of the connection between the two pipes 1.

[0028] The preferred implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the above-mentioned embodiments. Without violating the spirit of the present invention, i.e., the disclosure scope, any equivalent or equivalent deformation or replacement of the technical solution of the present invention shall fall within the protection scope of the present invention.

Claims

1. A glass fiber reinforced plastic ventilation duct, comprising a duct (1), wherein a left link (2) and a right link (3) are respectively sleeved and fixed at both ends of the outer wall of each duct (1), a sealing ring (4) is sandwiched between the right link (3) of the left duct (1) and the left link (2) of the right duct (1), and the left link (2), the sealing ring (4) and the right link (3) together constitute a sealing member; characterized in that: The invention also comprises a protective member arranged around the sealing member, the protective member comprising a clamping rod (5) and an elastic plate (6), the clamping rod (5) being arranged outside the pipeline (1) on both sides of the sealing member, the two clamping rods (5) being provided with bolts (7) for driving the two clamping rods (5) to clamp the sealing member, the elastic plate (6) being connected between the opposite surfaces of the two clamping rods (5) away from one end of the pipeline (1), the elastic plate (6) being an arc-shaped plate protruding toward the peripheral wall of the sealing member, the side of the elastic plate (6) facing the peripheral wall of the sealing member being connected with a top plate (8), and the side of the top plate (8) facing the peripheral wall of the sealing member being connected with a sealing gasket (9) contacting the peripheral wall of the sealing member.

2. A glass fiber reinforced plastic ventilation duct according to claim 1, characterized in that: The clamping rod (5) on the left side of the upper protective member is a rod body with a right triangle longitudinal section, and the front and rear ends of the clamping rod (5) are respectively flush with the front and rear side surfaces of the pipe (1); the bottom surface of the clamping rod (5) is a plane in sliding contact with the outer wall of the pipe (1), the right side surface is a straight surface in contact with the left side surface of the right link, and the left side surface of the clamping rod (5) is an inclined surface.

3. The glass fiber reinforced plastic ventilation duct according to claim 1, characterized in that: The length of the top plate (8) matches the length of the peripheral wall corresponding to the sealing member, and the width of the top plate (8) is smaller than the width of the peripheral wall corresponding to the sealing member; the size of the sealing pad (9) matches the size of the top plate (8).

4. The glass fiber reinforced plastic ventilation duct according to claim 1, characterized in that: The front and rear ends of the elastic plate (6) of the upper protective member are arc-shaped edges, and the elastic plate (6) is a plate body made of spring steel material.

5. The glass fiber reinforced plastic ventilation duct according to claim 1, characterized in that: The free end of the bolt (7) passes through the left clamping rod (5), the left connecting ring (2), the sealing ring (4), the right connecting ring (3) and the right clamping rod (5) in sequence, and the bolt (7) is limited by the nut (10).

6. The glass fiber reinforced plastic ventilation duct according to claim 5, characterized in that: The clamping rod (5), the left connecting ring (2), the sealing ring (4) and the right connecting ring (3) are all provided with bolt through holes (11) for bolts to movably pass through.

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