Glass steel exhaust cylinder connecting structure

Abstract

The utility model provides a glass -fiber reinforced plastic exhaust cylinder connecting structure relates to glass -fiber reinforced plastic technical field, a glass -fiber reinforced plastic exhaust cylinder connecting structure includes fixed sleeve, both ends of fixed sleeve all are connected with exhaust cylinder main part, exhaust cylinder main part all are made of glass -fiber reinforced plastic, exhaust cylinder main part one end is equipped with the positioning portion, the fixed sleeve inner wall is equipped with the fixed part, the fixed part with positioning portion plug -in cooperation, fixed sleeve outer wall is equipped with a plurality of buckle spare along the circumference, exhaust cylinder main part outer wall is equipped with with buckle spare one -to -one corresponding clamping seat, buckle spare with clamping seat joint cooperation. Its structure is reasonable, connects stable, and the sealing performance is good, can overcome the deficiency among the prior art, promotes the safety and environmental protection of exhaust system.

Description

Technical Field

[0001] This utility model relates to the field of fiberglass technology, and more specifically, to a fiberglass exhaust pipe connection structure. Background Technology

[0002] Currently, fiberglass exhaust stacks are widely used in industrial emission systems due to their advantages such as good corrosion resistance, lightweight and high strength, and convenient construction. Traditionally, the connection between fiberglass exhaust stacks often uses a flange connection structure, where a flange is installed at each end of two exhaust stack sections, and then bolts are tightened to compress the sealing gasket between the flanges, thereby achieving a sealed connection.

[0003] However, existing flange connection structures have certain drawbacks. Due to the thin walls of FRP exhaust stacks, the flange typically only makes partial contact with the end of the stack wall, resulting in a small contact area and uneven stress distribution at the connection point. During long-term operation, especially under the influence of wind loads, vibrations, or temperature changes, the flange connection is prone to deformation, leading to uneven compression or even failure of the gasket and resulting in air leakage. This not only reduces the operating efficiency of the exhaust system but may also pollute the environment and affect the normal operation of the equipment. Furthermore, existing flange connection methods are cumbersome to operate, requiring the use of several bolts for fixing, and the alignment requirements during installation are high. Improper installation can easily lead to a loose connection, further affecting the overall sealing performance of the FRP exhaust stack. Utility Model Content

[0004] The purpose of this utility model is to provide a fiberglass exhaust pipe connection structure, which has a reasonable structure, a stable connection, and good sealing performance. It can overcome the shortcomings of the prior art and improve the safety and environmental protection of the exhaust system.

[0005] This utility model is achieved through the following technical solution:

[0006] A fiberglass exhaust pipe connection structure includes a fixing sleeve, with exhaust pipe bodies connected to both ends of the fixing sleeve. The exhaust pipe bodies are all made of fiberglass. One end of the exhaust pipe body is provided with a positioning part, and the inner wall of the fixing sleeve is provided with a fixing member, which is inserted into the positioning part. The outer wall of the fixing sleeve is provided with a plurality of fasteners along the circumference, and the outer wall of the exhaust pipe body is provided with a locking seat corresponding to each of the fasteners, which is engaged with the locking seat.

[0007] Furthermore, the outer diameter of the positioning part is the same as the inner diameter of the fixing sleeve.

[0008] Furthermore, the positioning part is provided with a plurality of positioning holes circumferentially along the central axis of the exhaust pipe body, and the fixing member is a fixing protrusion, the fixing protrusion corresponding one to one with the positioning hole.

[0009] Furthermore, the inner wall of the fixing sleeve is provided with a positioning groove, and a spring is provided between the fixing protrusion and the groove wall of the positioning groove.

[0010] Furthermore, both the working surface of the fixed protrusion and the end face of the positioning part are arc surfaces.

[0011] Furthermore, a sealing gasket is provided at the connection between the exhaust pipe body and the fixed sleeve.

[0012] Furthermore, the fixing sleeve includes an outer shell and an inner shell, the outer shell being made of fiberglass and the inner shell being an expansion body.

[0013] Furthermore, the fastener includes a fastening plate and a retaining ring, the fastening seat is provided with a retaining groove, one end of the retaining ring is rotatably connected to the fastening plate, and the other end of the retaining ring is engaged with the retaining groove.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0015] In this invention, the initial connection of the exhaust pipe body is achieved through the cooperation of the positioning part and the fixing part, and then the secondary connection of the exhaust pipe body is achieved through the cooperation of the snap-fit ​​part and the mounting bracket. This two-stage connection improves the stability and sealing of the exhaust pipe connection, enhancing the safety and environmental friendliness of the exhaust system. Furthermore, the insertion design of the positioning part and the fixing part, as well as the snap-fit ​​design of the snap-fit ​​part and the mounting bracket, simplifies the connection steps of the exhaust pipe body, enabling rapid connection. Connecting the exhaust pipe body through the fixing sleeve reduces the impact of wind load, vibration, or temperature changes on the connection point, improving its stability and sealing, and preventing air leakage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the fiberglass exhaust pipe connection structure provided in Embodiment 1 of this utility model;

[0018] Figure 2 This is a cross-sectional view of the fiberglass exhaust pipe connection structure provided in Embodiment 1 of this utility model;

[0019] Figure 3 This is a cross-sectional view of the fixing sleeve provided in Embodiment 1 of this utility model;

[0020] Figure 4 This is a schematic diagram of the fiberglass exhaust pipe connection structure provided in Embodiment 1 of this utility model when in use.

[0021] Icons: 1-Fixing sleeve, 2-Exhaust pipe body, 11-Fixing protrusion, 12-Card plate, 13-Card ring, 14-Positioning groove, 15-Spring, 16-Outer shell, 17-Inner shell, 21-Positioning part, 22-Positioning hole, 23-Card seat, 24-Card slot. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example 1

[0028] Reference Figures 1-4 This embodiment provides a fiberglass exhaust pipe connection structure, including a fixing sleeve 1, with exhaust pipe bodies 2 connected to both ends of the fixing sleeve 1. The exhaust pipe bodies 2 are all made of fiberglass. One end of the exhaust pipe body 2 is provided with a positioning part 21. The inner wall of the fixing sleeve 1 is provided with a fixing member, which is inserted into the positioning part 21. The outer wall of the fixing sleeve 1 is provided with a plurality of fasteners along the circumference. The outer wall of the exhaust pipe body 2 is provided with a locking seat 23 corresponding to each of the fasteners, which is engaged with the locking seat 23.

[0029] The initial connection of the exhaust pipe body 2 is achieved through the cooperation of the positioning part 21 and the fixing part, followed by a secondary connection through the cooperation of the buckle and the bracket 23. This two-stage connection improves the stability and sealing of the exhaust pipe connection, enhancing the safety and environmental friendliness of the exhaust system. Furthermore, the insertion design of the positioning part 21 and the fixing part, as well as the snap-fit ​​design of the buckle and the bracket 23, simplifies the connection steps of the exhaust pipe body 2, enabling rapid connection. The connection of the exhaust pipe body 2 through the fixing sleeve 1 reduces the impact of wind load, vibration, or temperature changes on the connection, improving its stability and sealing, and preventing leakage. The fixing sleeve 1 has sockets at both ends and a insertion port at one end of the exhaust pipe body 2. When the fixing part and the positioning part 21 are inserted, the sockets and insertion ports engage, and this multiple insertion process alters the gas flow direction, further improving the leak-proof effect.

[0030] In a preferred embodiment, the outer diameter of the positioning part 21 is the same as the inner diameter of the fixing sleeve 1. The matching of the positioning part 21 and the fixing sleeve 1 improves the sealing performance of the connection between the exhaust pipe body 2 and the main body 2.

[0031] In a preferred embodiment, the positioning part 21 is provided with a plurality of positioning holes 22 circumferentially along the central axis of the exhaust pipe body 2, and the fixing member is a fixing protrusion 11, which corresponds one-to-one with the positioning hole 22. By using the plurality of fixing protrusions 11 to be inserted into the positioning holes 22, the connection between the fixing sleeve 1 and the exhaust pipe body 2 is strengthened, thereby improving the connection between the exhaust pipe bodies 2 and enhancing the safety of the exhaust system.

[0032] In a preferred embodiment, the inner wall of the fixing sleeve 1 is provided with a positioning groove 14, and a spring 15 is provided between the fixing protrusion 11 and the groove wall of the positioning groove 14. As the exhaust pipe body 2 is gradually inserted into the fixing sleeve 1, the fixing protrusion 11 gradually retracts into the positioning groove 14. When the positioning hole 22 of the positioning part 21 of the exhaust pipe body 2 corresponds to the fixing protrusion 11, the fixing protrusion 11 extends out from the positioning groove 14 and is inserted into the positioning hole 22, thereby realizing the connection between the fixing sleeve 1 and the exhaust pipe body 2. The connection between the two exhaust pipe bodies 2 is realized through the fixing sleeve 1.

[0033] In a preferred embodiment, both the working surface of the fixing protrusion 11 and the end face of the positioning part 21 are arc surfaces. This arc surface design allows the fixing protrusion 11 to retract more smoothly into the positioning groove 14 when the positioning part 21 contacts the fixing protrusion 11.

[0034] In a preferred embodiment, a sealing gasket is provided at the connection between the exhaust pipe body 2 and the fixing sleeve 1. The sealing gasket can improve the sealing performance at the connection between the fixing sleeve 1 and the exhaust pipe body 2.

[0035] In a preferred embodiment, the fixing sleeve 1 includes an outer shell 16 and an inner shell 17. The outer shell 16 is made of fiberglass, and the inner shell 17 is an expansion body. The use of an expansion body allows for a movable space between the exhaust pipe body 2 and the fixing sleeve 1, satisfying the working environment of thermal expansion and contraction of the exhaust pipe body 2. That is, there is a movable or deformable space between the positioning part 21 of the exhaust pipe body 2 and the inner shell 17 of the fixing sleeve 1, which can extend the service life of the exhaust pipe. The fixing protrusion 11 is located inside the inner shell 17, and the fastener is located outside the outer shell 16.

[0036] In a preferred embodiment, the fastener includes a locking plate 12 and a locking ring 13. The locking seat 23 is provided with a locking groove 24. One end of the locking ring 13 is rotatably connected to the locking plate 12, and the other end of the locking ring 13 is engaged with the locking groove 24. The locking design of the locking ring 13 and the locking groove 24 can realize a quick connection between the fixing sleeve 1 and the exhaust pipe body 2, thus speeding up the installation of the exhaust pipe.

[0037] The working principle of a fiberglass exhaust pipe connection structure is as follows: The positioning part 21 of the exhaust pipe body 2 is inserted into the fixing sleeve 1. The fixing protrusion 11 inside the fixing sleeve 1 engages with the positioning hole 22 of the positioning part 21, achieving an initial connection between the exhaust pipe body 2 and the fixing sleeve 1. Simultaneously, the socket of the fixing sleeve 1 engages with the insertion port of the exhaust pipe body 2, improving the sealing performance of the connection through two locking mechanisms. Then, the retaining ring 13 on the outside of the fixing sleeve 1 is rotated, allowing the retaining ring 13 to engage with the retaining groove 24 on the outside of the exhaust pipe body 2, achieving a secondary fixation between the exhaust pipe body 2 and the fixing sleeve 1, improving the stability of the connection. Similarly, the other end of the fixing sleeve 1 is connected to another exhaust pipe body 2, achieving the connection of two exhaust pipe bodies 2. The structure is simple and the operation is convenient.

[0038] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fiberglass exhaust pipe connection structure, characterized in that: The device includes a fixing sleeve, with an exhaust pipe body connected to both ends of the fixing sleeve. The exhaust pipe body is made of fiberglass. One end of the exhaust pipe body is provided with a positioning part. The inner wall of the fixing sleeve is provided with a fixing member, which is inserted into the positioning part. The outer wall of the fixing sleeve is provided with multiple fasteners along the circumference. The outer wall of the exhaust pipe body is provided with a card seat that corresponds to each of the fasteners. The fasteners are engaged with the card seats.

2. The fiberglass exhaust pipe connection structure according to claim 1, characterized in that, The outer diameter of the positioning part is the same as the inner diameter of the fixing sleeve.

3. The fiberglass exhaust pipe connection structure according to claim 1, characterized in that, The positioning part is provided with multiple positioning holes circumferentially along the central axis of the exhaust pipe body, and the fixing member is a fixing protrusion, which corresponds one-to-one with the positioning hole.

4. The fiberglass exhaust pipe connection structure according to claim 3, characterized in that, The inner wall of the fixing sleeve is provided with a positioning groove, and a spring is provided between the fixing protrusion and the groove wall of the positioning groove.

5. The fiberglass exhaust stack connection structure according to claim 4, characterized in that, The working surface of the fixed protrusion and the end face of the positioning part are both arc surfaces.

6. The fiberglass exhaust stack connection structure according to claim 1, characterized in that, A sealing gasket is provided at the connection between the exhaust pipe body and the fixed sleeve.

7. The fiberglass exhaust stack connection structure according to claim 1, characterized in that, The fixing sleeve includes an outer shell and an inner shell. The outer shell is made of fiberglass, and the inner shell is an expansion body.

8. The fiberglass exhaust pipe connection structure according to claim 1, characterized in that, The fastener includes a fastener plate and a fastener ring. The fastener seat has a fastener groove. One end of the fastener ring is rotatably connected to the fastener plate, and the other end of the fastener ring is engaged with the fastener groove.

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