Pipe flange with stable structure
By designing a detachable pipe flange structure, the problem of difficult disassembly in existing technologies has been solved, achieving high flexibility and maintainability, improving structural stability and sealing performance, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-06
AI Technical Summary
The existing pipe flange connection structure is fixed and difficult to disassemble, resulting in a lot of time and cost when repairing or replacing the pipe body, which affects the normal operation of the equipment.
Design a detachable pipe flange structure, in which the flange and the pipe body are detachably connected through radial connection slots and plug ends, and the structural stability and sealing performance are enhanced by reinforcement, gaskets and fastening blocks.
It achieves high flexibility and maintainability of pipe flanges, saves maintenance time and costs, improves structural strength and sealing performance, extends service life, and ensures stable operation of equipment.
Smart Images

Figure CN223975703U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flange technology, specifically to a structurally stable pipe flange. Background Technology
[0002] In existing technologies, pipe flanges typically have a fixed connection structure. Once installed, the connection between the pipe body and the flange is difficult to disassemble, which causes many inconveniences in practical applications. Especially when pipe maintenance or replacement is required, a significant amount of time and manpower is often needed for disassembly, increasing maintenance costs and affecting the normal operation of the equipment. Summary of the Invention
[0003] In view of this, the present invention provides a pipe flange with a stable structure.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A structurally stable pipe flange includes a flange and a pipe body, which are detachably connected. The flange is annular and fitted onto one end of the pipe body. Several connecting slots are radially arranged around the center of the flange on the inner ring side of the flange. The portion of the flange near the edge of the connecting slot extends upwards to form a reinforcing portion. The connecting slots extend to the reinforcing portion. The pipe body is provided with a corresponding insertion end for the connecting slot. Both the insertion end and the connecting slot are trapezoidal in shape. The insertion end extends into the connecting slot and connects with the flange.
[0006] Preferably, the reinforcing part is arranged in a plate-like trapezoidal structure, and the connecting slot has a first slot portion located in the reinforcing part and a second slot portion located in the flange. The cross-sectional shape of the first slot portion and the cross-sectional shape of the second slot portion are both rectangular, and the shape of the plug-in end corresponds to the shape of the first slot portion and the second slot portion.
[0007] Preferably, sealing gaskets are provided on the inner walls of both the first slot portion and the second slot portion, and the sealing gaskets are respectively sealed and connected to the inner walls of the first slot portion and the second slot portion and the insertion end.
[0008] Preferably, a fastening connection block protrudes from the portion of the pipe body between the plug ends, a fastening screw hole is provided on the fastening connection block, a connection hole is provided on the flange corresponding to the fastening screw hole, a fastener is provided between the fastening screw hole and the connection hole, one end of the fastener passes through the fastening screw hole and extends into the connection hole to connect the pipe body and the flange.
[0009] Preferably, the bottom surface of the fastening block is in close contact with the top surface of the flange.
[0010] Preferably, the sealing gasket extends outward toward the first and second slot portions and completely covers the inner wall of the flange.
[0011] Preferably, both the flange and the pipe body are made of stainless steel.
[0012] The beneficial effects of this utility model are as follows: By setting the connection structure between the flange and the pipe body as detachable, the entire pipe flange has greater flexibility and maintainability during use. When maintenance or replacement of the pipe body is required, it is not necessary to disassemble the entire flange; simply pull the plug end of the pipe body out of the connection slot, greatly saving maintenance time and costs. Furthermore, the reinforcing part not only enhances the overall structural strength of the flange but also makes the opening of the connection slot more stable, avoiding deformation or damage caused by long-term stress on the plug end, further improving the service life and safety of the pipe flange. At the same time, the radially arranged connection slots ensure a more uniform connection between the pipe body and the flange, guaranteeing the stability and reliability of the entire structure. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Appendix Figure 2 This is a cross-sectional view of the present invention;
[0016] Appendix Figure 3 This is a cross-sectional view of the present invention from another angle. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] The present invention will now be further described with reference to the accompanying drawings.
[0019] This utility model provides the following technical solution:
[0020] As attached Figure 1-3As shown, this utility model discloses a structurally stable pipe flange, including a flange 1 and a pipe body 2. The flange 1 and the pipe body 2 are detachably connected. The flange 1 is annularly fitted onto one end of the pipe body 2. Several connecting slots 3 are radially arranged around the center of the flange 1 on the inner ring side of the flange 1. A reinforcing portion 4 extends upwards from the edge of the flange 1 near the connecting slot 3, and the connecting slots 3 extend onto the reinforcing portion 4. A corresponding insertion end 5 is provided on the pipe body 2 for each connecting slot 3. Both the insertion end 5 and the connecting slot 3 are trapezoidal in shape, and the insertion end 5 extends into the connecting slot 3 and connects to the flange 1. Specifically, in this design, by setting the connection between the flange 1 and the pipe body 2 as a detachable structure, the entire pipe flange has greater flexibility and maintainability during use. When repair or replacement of the pipe body 2 is required, it is not necessary to disassemble the entire flange 1; simply pull the insertion end 5 of the pipe body 2 out of the connecting slot 3, greatly saving repair time and costs. Furthermore, the reinforcement section 4 not only enhances the overall structural strength of the flange 1, but also makes the opening of the connection slot 3 more stable, preventing deformation or damage caused by long-term stress on the insertion end 5, thus further improving the service life and safety of the pipe flange. At the same time, the radially arranged connection slots 3 ensure a more uniform connection between the pipe body 2 and the flange 1, guaranteeing the stability and reliability of the entire structure.
[0021] Furthermore, the reinforcing part 4 is arranged in a trapezoidal, sheet-like structure. The connecting slot 3 has a first slot part 6 located within the reinforcing part 4 and a second slot part 7 located within the flange 1. The cross-sectional shape of both the first slot part 6 and the second slot part 7 is rectangular. The shape of the insertion end 5 corresponds to the shapes of the first slot part 6 and the second slot part 7. Specifically, in this embodiment, the trapezoidal structure design of the reinforcing part 4 not only makes the structure of the connecting slot 3 more stable but also effectively disperses the pressure on the insertion end 5 under stress, preventing damage caused by excessive local pressure. The rectangular cross-sectional shape of the first slot part 6 and the second slot part 7 facilitates the smooth insertion of the insertion end 5 and provides stable support after insertion. This design not only improves the connection strength of the pipe flange but also enhances its fatigue resistance, enabling the pipe flange to maintain a good working condition during long-term use. At the same time, the shape of the insertion end 5 corresponds to the shapes of the first slot part 6 and the second slot part 7, ensuring that the insertion end 5 can be accurately inserted into the connecting slot 3, avoiding connection problems caused by improper insertion, and further improving the stability and reliability of the entire structure.
[0022] Furthermore, sealing gaskets 8 are provided on the inner walls of both the first slot portion 6 and the second slot portion 7, and the sealing gaskets 8 are respectively in sealing contact with the inner walls of the first slot portion 6 and the second slot portion 7 and the insertion end 5. Specifically, in this embodiment, the sealing gaskets 8 effectively prevent the medium from leaking from the connecting slot 3, improving the sealing performance of the pipe flange. The sealing gaskets 8 can be made of elastic materials, such as rubber or silicone, to ensure a tight fit after the insertion end 5 is inserted into the connecting slot 3, forming an effective seal.
[0023] Furthermore, a fastening connecting block 9 protrudes from the portion of the pipe body 2 located between the insertion ends 5, and a fastening screw hole 10 is formed on the fastening connecting block 9. A connecting hole 11 is formed on the flange 1 corresponding to the fastening screw hole 10. A fastener 12 is provided between the fastening screw hole 10 and the connecting hole 11. One end of the fastener 12 passes through the fastening screw hole 10 and extends into the connecting hole 11 to connect the pipe body 2 and the flange 1. Specifically, in this embodiment, the design of the fastening connecting block 9 and the fastener 12 provides an additional fixing method between the pipe body 2 and the flange 1, enhancing the stability of the connection. The fastening connecting block 9 protrudes from the pipe body 2, facilitating the installation and operation of the fastener 12. The precise correspondence between the fastening screw hole 10 and the connecting hole 11 ensures that the fastener 12 can pass through smoothly and be tightly connected together. The fastener 12 can be a common type of fastener such as a bolt or nut, and a firm connection between the pipe body 2 and the flange 1 is achieved through tightening. This design not only improves the connection strength of the pipe flange but also makes the entire structure more stable and reliable during use, capable of withstanding greater pressure and load. At the same time, the fastening connection block 9 and fastener 12 facilitate subsequent maintenance and replacement, enhancing the overall practicality and convenience of the pipe flange.
[0024] Furthermore, the bottom surface of the fastening block 9 is tightly fitted to the top surface of the flange 1. Specifically, in this embodiment, the tight fit between the bottom surface of the fastening block 9 and the top surface of the flange 1 further enhances the overall sealing performance and stability of the pipe flange. This fit not only reduces the risk of media leakage but also ensures the uniform distribution of stress between the pipe body 2 and the flange 1, avoiding structural damage caused by excessive local stress. In addition, the tight fit design also improves the seismic performance of the pipe flange, enabling it to maintain good working condition in harsh working environments.
[0025] Furthermore, the sealing gasket 8 extends outward toward the first slot portion 6 and the second slot portion 7 and completely covers the inner wall of the flange 1. Specifically, in this embodiment, the design of the sealing gasket 8 extending outward and completely covering the inner wall of the flange 1 not only enhances the sealing effect but also improves the durability of the sealing gasket 8. This design ensures that the sealing gasket 8 can fully cover the area surrounding the connection slot 3, effectively preventing media leakage from any possible gaps. At the same time, the extended portion of the sealing gasket 8 can fit tightly against the inner wall of the flange 1, further improving the sealing performance of the pipe flange. In addition, the complete coverage design can also protect the inner wall of the flange 1 from media erosion and wear, extending the service life of the entire pipe flange.
[0026] Furthermore, both the flange 1 and the pipe body 2 are made of stainless steel. Specifically, in this embodiment, stainless steel has excellent corrosion resistance and can maintain its structural integrity and performance stability in harsh environments such as humid and corrosive media.
[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A structurally stable pipe flange comprising a flange disc and a pipe body, characterized in that: The detachable connection between the flange plate and the pipe body, the flange plate is annular structure set in one end of the pipe body, the inner ring side of the flange plate is provided with several connection slots arranged radially with the center of the flange plate, the edge part of the flange plate near the connection slot extends to the upper part of the flange plate to form a reinforcing part, the connection slot extends to the reinforcing part, the pipe body is provided with a plug-in end corresponding to the connection slot, the plug-in end and the connection slot are arranged in corresponding trapezoidal structure, the plug-in end is connected with the flange plate by extending into the connection slot.
2. The structurally stable pipe flange of claim 1, wherein: The reinforcing part is arranged in sheet-shaped trapezoidal structure, the connection slot has a first slot part in the reinforcing part and a second slot part in the flange plate, the cross-sectional shape of the first slot part and the second slot part are both arranged in rectangular shape, the shape of the plug-in end is arranged corresponding to the shape of the first slot part and the second slot part.
3. The structurally stable pipe flange of claim 2, wherein: The inner wall of the first slot part and the second slot part is provided with a sealing gasket, the sealing gasket is respectively sealed with the inner wall of the first slot part and the second slot part and the plug-in end.
4. The structurally stable pipe flange of claim 1, wherein: The part of the pipe body between the plug-in end is protruded to form a fastening block, the fastening block is provided with a fastening screw hole, the flange plate is provided with a connecting hole corresponding to the fastening screw hole, the fastening screw hole and the connecting hole are provided with a fastener, one end of the fastener passes through the fastening screw hole and extends into the connecting hole to connect the pipe body and the flange plate.
5. The structurally stable pipe flange of claim 4, wherein: The bottom surface of the fastening block is closely attached to the top surface of the flange plate.
6. The structurally stable pipe flange of claim 3, wherein: The sealing gasket extends to the outside of the first slot part and the second slot part and completely covers the inner wall of the flange plate.
7. The structurally stable pipe flange of claim 1, wherein: The flange plate and the pipe body are both made of stainless steel.