Flange with positioning and connecting functions

By setting multiple layers of sealing rings and a locking mechanism on the flange, the problem of inconvenient sealing and positioning of flange connections is solved, achieving efficient sealing and quick positioning connection, and avoiding loosening.

CN223965078UActive Publication Date: 2026-03-03ZHEJIANG HUALING FLANGE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing flange connections are not conducive to efficient sealing, are difficult to quickly position and connect, and are prone to loosening.

Method used

A flange with a sealing structure is designed, including first and second flange bodies, sealing rings and a locking mechanism, which achieves efficient sealing and rapid positioning connection through the elastic locking of multiple sealing rings and locking blocks.

Benefits of technology

It achieves efficient sealing of the flange, quick positioning and connection, and avoids loosening.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223965078U_ABST
    Figure CN223965078U_ABST
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Abstract

The utility model discloses a flange with a positioning and connecting function. The flange comprises a first flange plate body used for installation and a second flange plate body stably installed at the lower end of the first flange plate body. The sealing structure is arranged on the second flange plate body and comprises a first mounting groove, a second mounting groove, a first sealing ring, a second sealing ring and a third sealing ring, the second mounting groove is formed in the left side of the first mounting groove, and the first sealing ring is connected into the first mounting groove; a second sealing ring is connected into the second mounting groove, and a third sealing ring is arranged at the upper end of the first sealing ring and the upper end of the second sealing ring. And a clamping mechanism is arranged at the lower end of the connecting block. According to the flange with the positioning and connecting functions, efficient sealing treatment can be conveniently carried out on the flange, rapid positioning and connecting treatment can be conveniently carried out on the flange, and a positioning and clamping device can be conveniently limited to avoid loosening.
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Description

Technical Field

[0001] This utility model relates to the field of flange technology, specifically to a flange with positioning and connection function. Background Technology

[0002] A flange, also known as a flange plate, is a connecting part used between pipes. It is mainly connected to pipe sections and needs to have a positioning function during the connection process. However, the existing flange connection is relatively cumbersome, usually using bolts or threads, which makes it easy to loosen or cause trouble for maintenance. At the same time, the flange also needs to have a good sealing structure to prevent water leakage from the pipe. Therefore, a flange with a positioning connection function has been designed.

[0003] A flange with positioning function, authorized by announcement number CN220303030U, includes a flange body and a connecting protrusion located at the center of one end face of the flange. The flange body gradually thins from the center to the outer edge. The connecting protrusion is tapered and has a through hole at its center, corresponding to the center hole of the flange body. A bayonet is provided on the outer wall of the flange body, and limiting grooves are provided on the beveled surfaces at both ends of the flange body near the bayonet. This utility model belongs to the technical field of connecting components, specifically a flange with positioning function for the assembly and positioning of flanges, restricting multiple degrees of freedom of the flange, realizing the assembly and fixing of the flange, and facilitating limiting support for the flange.

[0004] Based on existing solutions and actual production and processing, current flanges still have some problems: they are not easy to seal efficiently, they are not easy to quickly position and connect, and they are not easy to limit the positioning and locking device to prevent loosening. Therefore, this utility model provides a flange with positioning and connection function to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a flange with a positioning and connection function to solve the problems mentioned in the background art, such as the inconvenience of efficient sealing of the flange, the inconvenience of quick positioning and connection of the flange, and the inconvenience of limiting the positioning and locking device to prevent loosening.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a flange with a positioning and connection function, comprising: a first flange body for installation, and a second flange body stably installed at the lower end of the first flange body;

[0007] It also includes: the second flange body is provided with a sealing structure, wherein the sealing structure includes a first mounting groove, a second mounting groove, a first sealing ring, a second sealing ring and a third sealing ring, the second mounting groove is provided on the left side of the first mounting groove, and the first sealing ring is connected inside the first mounting groove, and the second sealing ring is connected inside the second mounting groove, and the third sealing ring is provided at the upper end of the first sealing ring and the second sealing ring.

[0008] The connecting block has a locking mechanism at its lower end, which includes a second slot, a locking block, and a second spring. The locking block is connected inside the second slot, and the second spring is located at the lower center of the locking block.

[0009] Preferably, the upper end of the second flange body is provided with a first mounting groove, and the interior of the first mounting groove is fitted with the first sealing ring, and the interior of the first mounting groove is connected to the third sealing ring by a snap-fit ​​method.

[0010] Preferably, the left and right front and rear ends of the second flange body are provided with first slots, and the interior of the first slots is connected to the connecting block by a snap-fit ​​method.

[0011] Preferably, the upper end of the connecting block is connected to the left and right front and rear ends of the first flange body, the middle part of the connecting block has a first spring in a fitted state, and the lower end of the connecting block is in an inclined state.

[0012] Preferably, the interior of the second card slot is connected to the card block by a snap-fit ​​mechanism, and the upper left side of the card block is set in an inclined state.

[0013] Preferably, the middle part of the locking block is fitted with the second spring, and the left end of the locking block is connected to the hook rod by a locking method, and the upper end of the hook rod is connected to a fixing block.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the flange with positioning and connection function facilitates efficient sealing of the flange, facilitates rapid positioning and connection of the flange, and facilitates limiting the positioning and locking device to prevent loosening;

[0015] 1. It is equipped with a first mounting groove, a first sealing ring and a third sealing ring. When the flange connection needs to be sealed, the first sealing ring and the second sealing ring are placed in the first mounting groove and the second mounting groove respectively on the first flange body and the second flange body. When the first flange body and the second flange body are connected together, the third sealing ring is placed in the middle, so that the third sealing ring is engaged with the inside of the first mounting groove and the second mounting groove, thereby achieving multi-layer sealing treatment and facilitating efficient sealing treatment of the flange.

[0016] 2. The system is equipped with a connecting block, a second slot, and a locking block. When the flange needs to be positioned and connected, after the first flange body and the second flange body are covered together, the connecting block can be slid down to press the first spring into the interior of the first slot. The lower end of the connecting block is inclined, so the connecting block presses the locking block inward through this path. When the connecting block moves to the appropriate position, the locking block is engaged with the interior of the second slot by the elastic force of the second spring, thereby fixing the connecting block in position and completing the positioning and connection of the flange, which facilitates the rapid positioning and connection of the flange.

[0017] 3. It is equipped with a locking block, a hook rod, and a fixing block. After the locking block is stably connected, it needs to be fixed in position. Since the hook rod is installed on the fixing block, the hook rod is rotated downwards and engaged into the groove at the left end of the locking block, which can fix the locking device in position and facilitate the positioning locking device to limit and prevent loosening. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a top view sectional structural diagram of the present invention;

[0020] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This utility model Figure 1 Enlarged structural diagram at point B;

[0022] Figure 5 This is a schematic diagram of the connection structure between the first flange body and the hook rod of this utility model.

[0023] In the figure: 1. First flange body; 2. Second flange body; 3. First mounting groove; 4. Second mounting groove; 5. First sealing ring; 6. Second sealing ring; 7. Third sealing ring; 8. First slot; 9. Connecting block; 10. First spring; 11. Second slot; 12. Locking block; 13. Second spring; 14. Hook rod; 15. Fixing block. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a flange with positioning and connection function, including a first flange body 1, a second flange body 2, a first mounting groove 3, a second mounting groove 4, a first sealing ring 5, a second sealing ring 6, a third sealing ring 7, a first slot 8, a connecting block 9, a first spring 10, a second slot 11, a locking block 12, a second spring 13, a hook rod 14, and a fixing block 15.

[0026] When sealing the flange, for example, attaching... Figure 1 Appendix Figure 2 and Figure 3 As shown, the upper end of the second flange body 2 is provided with a first mounting groove 3. The interior of the first mounting groove 3 is fitted with the first sealing ring 5. The interior of the first mounting groove 3 is connected to the third sealing ring 7 by a snap-fit ​​method. First, the first sealing ring 5 and the second sealing ring 6 are placed in the first mounting groove 3 and the second mounting groove 4 respectively provided at the lower end of the first flange body 1 and the upper end of the second flange body 2. When the first flange body 1 and the second flange body 2 are covered and connected together, the third sealing ring 7 needs to be placed on the first mounting groove 3 and the second mounting groove 4 provided on the second flange body 2, so that it is fitted with the first sealing ring 5 and the second sealing ring 6 on the second flange body 2. After the first flange body 1 is covered on the second flange body 2, the upper end of the third sealing ring 7 is snapped into the first mounting groove 3 and the second mounting groove 4 provided at the lower end of the first flange body 1. Through the multi-layer sealing connection of the first mounting groove 3 and the second mounting groove 4, the flange sealing treatment can be ensured, thereby achieving the sealing treatment of the flange connection.

[0027] When using a flange with positioning connection function, for example, with... Figure 1 Appendix Figure 4 and attached Figure 5As shown, the second flange body 2 has first slots 8 at its left, right, front, and rear ends. The interior of the first slots 8 is connected to the connecting block 9 by a snap-fit ​​mechanism. The upper end of the connecting block 9 is connected to the left, right, front, and rear ends of the first flange body 1. The middle of the connecting block 9 has a first spring 10 in a fitted state, and the lower end of the connecting block 9 is inclined. The interior of the second slot 11 is connected to the locking block 12 by a snap-fit ​​mechanism. The upper left side of the locking block 12 is inclined, and the middle of the locking block 12 is in a fitted state with the second spring 13. The left end of the locking block 12 is connected to the hook rod 14 by a snap-fit ​​mechanism. The upper end of the hook rod 14 is connected to a fixing block 15. After the first flange body 1 and the second flange body 2 are first spliced ​​together, when it is necessary to position and connect them, the connecting blocks 9 at the left, right, front, and rear ends of the first flange body 1 are slid downwards respectively. The first spring 10 is compressed, causing the connecting block 9 to move downwards and insert into the first slot 8. After the connecting block 9 enters the first slot 8, the lower end of the connecting block 9 begins to fit against the locking block 12. The locking block 12 then continuously retracts into the second flange body 2 according to the path of the lower end of the connecting block 9. When the connecting block 9 moves to the designated position, the locking block 12 automatically engages with the first spring 10 at the lower end of the connecting block 9 by the elastic force of the second spring 13, thus completing the positioning connection of the flange. Since the locking block 12 will undergo elastic changes due to the influence of the second spring 13, in order to stabilize its position, the hook rod 14 needs to be rotated downwards so that the lower end of the hook rod 14 engages with the groove at the left end of the locking block 12. This stabilizes the position of the locking block 12 and prevents the flange connection from becoming loose. This is the method of using the flange with positioning connection function.

[0028] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flange having a positioning connection function, comprising: First flange body (1) for installation, second flange body (2) stably installed at lower end of first flange body (1); It is characterized in that further comprising: The second flange body (2) is provided with a sealing structure, wherein the sealing structure comprises a first installation groove (3), a second installation groove (4), a first sealing ring (5), a second sealing ring (6) and a third sealing ring (7), the left side of the first installation groove (3) is provided with the second installation groove (4), the inside of the first installation groove (3) is connected with the first sealing ring (5), the inside of the second installation groove (4) is connected with the second sealing ring (6), and the upper end of the first sealing ring (5) and the second sealing ring (6) is provided with the third sealing ring (7); The lower end of the connecting block (9) is provided with a clamping mechanism, wherein the clamping mechanism comprises a second clamping groove (11), a clamping block (12) and a second spring (13), the inside of the second clamping groove (11) is connected with the clamping block (12), and the lower end of the clamping block (12) is provided with the second spring (13).

2. The flange with positioning and connecting functions according to claim 1, characterized in that: The upper end of the second flange body (2) is provided with the first installation groove (3), the inside of the first installation groove (3) is provided in a fitted state with the first sealing ring (5), and the inside of the first installation groove (3) is connected with the third sealing ring (7) in a clamping manner.

3. The flange with positioning and connecting functions according to claim 1, characterized in that: The left and right front and rear ends of the second flange body (2) are provided with the first clamping groove (8), and the inside of the first clamping groove (8) is connected with the connecting block (9) in a clamping manner.

4. The flange with positioning and connecting functions according to claim 3, characterized in that: The upper end of the connecting block (9) is connected with the left and right front and rear ends of the first flange body (1), the middle part of the connecting block (9) is provided in a fitted state with the first spring (10), and the lower end of the connecting block (9) is provided in an inclined state.

5. The flange with positioning and connecting functions according to claim 1, characterized in that: The inside of the second clamping groove (11) is connected with the clamping block (12) in a clamping manner, and the upper end of the clamping block (12) is provided in an inclined state.

6. The flange with positioning and connecting functions according to claim 1, characterized in that: The middle part of the clamping block (12) is provided in a fitted state with the second spring (13), the left end of the clamping block (12) is connected with the hook rod (14) in a clamping manner, and the upper end of the hook rod (14) is connected with the fixed block (15).

Citation Information

Patent Citations

  • Flange plate with positioning function

    CN220303030U