A self-locking assembly flange

Abstract

The utility model discloses a self-locking assembly flange, including a flange body, a connection port and a sealing flange; the connection port is located on one side of the flange body, fixedly connected to the flange body, and connected to the inner and outer spaces of the flange body to realize liquid transportation of a magnetic pump; the sealing flange is located between the flange body and the connection port, and is screwed on the outer side of the connection port through threaded fitting to seal the connection port. The utility model provides a self-locking assembly flange, through the inner and outer disk design of the sealing flange, the outer disk moves toward the connection port, thereby pressing the inner disk, at which time the inner disk presses the sealing ring on the connection port to form a seal, and the durability of the metal seal is higher than that of the rubber seal, so the service life of the sealing ring is greatly extended, and it is not easy to lose, and the assembly operation steps are reduced, and the assembly can be completed directly.

Description

Technical Field

[0001] The utility model relates to a self-locking assembly flange. Background Art

[0002] At present, magnetic pumps are widely used as a common power source. Their basic structure is that one end is connected to the motor and the other end is connected to the pipeline. Flange connection is widely used as a common adapter. Due to the current transportation environment, the main problem of the existing technology is that there are hidden dangers in the sealing at the joint.

[0003] The traditional sealing method is to ensure the sealing inside the joint by using a gasket, but this requires a large number of accessories, and the gasket needs to be arranged at the connection of the joint during assembly. Since the gasket itself has no connection capability and relies entirely on the locking force between the parts for sealing, it is easy to be lost during assembly, resulting in the joint being unable to be sealed during the assembly process. Moreover, due to its service life, leakage often occurs due to damage to the gasket. Utility Model Content

[0004] The utility model aims to provide a self-locking assembly flange, which realizes a sealed connection by arranging a sealing flange at the front end of a flange plate and utilizing a mechanical structure and thread locking, thereby reducing the use of sealing pads and improving assembly efficiency.

[0005] In order to solve the above problems, the utility model provides a self-locking assembly flange adopts the following technical solutions:

[0006] A self-locking assembly flange comprises a flange body, a connection port and a sealing flange; the connection port is located at one side of the flange body, is fixedly connected to the flange body, and connects the inner and outer spaces of the flange body to realize liquid transportation of a magnetic pump; the sealing flange is located between the flange body and the connection port, is screwed on the outer side of the connection port through threaded fitting, and is used to seal the connection port;

[0007] The sealing flange includes a locking plate, a sealing ring, a clamping link and a clamping spring; the locking plate is located on the outside of the connecting port and is threadedly connected to the connecting port; the sealing ring is located inside the locking plate and is in conflict with the connecting port; the clamping link is located inside the locking plate, with one end connected to the locking plate and the other end in conflict with the sealing ring; the clamping spring is located between the clamping link and the locking plate, connecting the clamping link and the locking plate.

[0008] Furthermore, the locking disk includes a connecting disk, an outer disk and an inner disk; the connecting disk is located on one side of the outer disk, is provided with an internal thread, and cooperates with the connecting port; the outer disk is located on one side of the connecting disk, and is fixedly connected to the connecting disk; the inner disk is located inside the outer disk, is connected to the clamping connecting rod and the sealing ring, and conflicts with the outer disk.

[0009] Furthermore, the inner wall of the outer disk is in a conical shape, and the inner diameter increases as it approaches the connecting disk. When the outer disk moves toward the connecting port, the inner diameter gradually decreases, thereby pressing the inner disk.

[0010] Furthermore, the inner disk is annular in shape, and its outer diameter matches that of the outer disk. When the outer disk is threadedly connected with the connecting disk, the outer disk moves toward the connecting port to press the inner disk.

[0011] Furthermore, the outer diameter of the inner disk matches the outer diameter of the thread of the connecting disk, and is assembled to the interior of the outer disk through interference fit.

[0012] Furthermore, there are no less than two sealing rings, which are symmetrically distributed and combined to form a complete ring.

[0013] Furthermore, the plurality of sealing rings are sealed against each other by means of engine oil.

[0014] Furthermore, the clamping connecting rods and the clamping springs are provided in an even number and are evenly distributed on the outer circle of the sealing ring.

[0015] Furthermore, both ends of the clamping connecting rod are hingedly connected to the sealing ring and the locking disk respectively.

[0016] The beneficial effects of the utility model are as follows: the utility model provides a self-locking assembly flange, through the inner and outer disk design of the sealing flange, when the threaded connection is made, the outer disk moves toward the connection port, and due to the tapered design of the inner diameter, the size continues to decrease, thereby pressing the inner disk, at this time the inner disk presses the sealing ring on the connection port to form a seal, and then the gap between the sealing rings is sealed by engine oil to achieve flange sealing, because the outer diameter of the inner disk matches the connecting disk, and the inner diameter of the outer disk on the other side is smaller than the inner disk, the inner disk can be kept inside the outer disk, and the durability of the metal seal is higher than that of the rubber seal, so the service life of the sealing ring is greatly extended, and it is not easy to lose, and the assembly operation steps are reduced, and the assembly can be completed directly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 It is the front view of the utility model.

[0018] Attached Figure 2It is a cross-sectional view of the sealing flange of the utility model.

[0019] Among them: 1. Flange body, 2. Connecting port, 3. Sealing flange, 4. Locking plate, 5. Sealing ring, 6. Compression connecting rod, 7. Compression spring, 8. Connecting plate, 9. Outer plate, 10. Inner plate. DETAILED DESCRIPTION

[0020] In order to more clearly understand the technical solution provided by the utility model, the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] As shown in the accompanying drawings, the utility model provides a self-locking assembly flange, comprising a flange body 1, a connection port 2 and a sealing flange 3; the connection port 2 is located on one side of the flange body 1, is fixedly connected to the flange body 1, and connects the inner and outer spaces of the flange body 1 to realize liquid transportation of the magnetic pump; the sealing flange 3 is located between the flange body 1 and the connection port 2, is tightened on the outer side of the connection port 2 through threaded matching, and is used to seal the connection port 2;

[0022] The sealing flange 3 includes a locking plate 4, a sealing ring 5, a clamping link 6 and a clamping spring 7; the locking plate 4 is located on the outside of the connecting port 2 and is threadedly connected to the connecting port 2; the sealing ring 5 is located inside the locking plate 4 and conflicts with the connecting port 2; the clamping link 6 is located inside the locking plate 4, with one end connected to the locking plate 4 and the other end conflicting with the sealing ring 5; the clamping spring 7 is located between the clamping link 6 and the locking plate 4, connecting the clamping link 6 and the locking plate 4.

[0023] Furthermore, the locking disk 4 includes a connecting disk 8, an outer disk 9 and an inner disk 10; the connecting disk 8 is located on one side of the outer disk 9, is provided with an internal thread, and cooperates with the connecting port 2; the outer disk 9 is located on one side of the connecting disk 8, and is fixedly connected to the connecting disk 8; the inner disk 10 is located inside the outer disk 9, is connected to the clamping connecting rod 6 and the sealing ring 5, and conflicts with the outer disk 9.

[0024] Furthermore, the inner wall of the outer disk 9 is conical in shape, and the inner diameter increases as it approaches the connecting disk 8 . When the outer disk 9 moves toward the connecting port 2 , the inner diameter gradually decreases, thereby pressing the inner disk 10 .

[0025] Furthermore, the inner disk 10 is annular in shape, and its outer diameter matches that of the outer disk 9 . When the outer disk 9 is threadedly connected with the connecting disk 8 , the outer disk 9 moves toward the connecting port 2 to press the inner disk 10 .

[0026] Furthermore, the outer diameter of the inner disk 10 matches the outer diameter of the thread of the connecting disk 8 and is assembled into the inner part of the outer disk 9 by interference fit.

[0027] Furthermore, at least two sealing rings 5 ​​are provided, symmetrically distributed, and combined to form a complete ring.

[0028] Furthermore, the plurality of sealing rings 5 ​​are sealed against each other by means of engine oil.

[0029] Furthermore, the clamping connecting rods 6 and the clamping springs 7 are provided in an even number and are evenly distributed on the outer circle of the sealing ring 5 .

[0030] Furthermore, two ends of the clamping connecting rod 6 are respectively hingedly connected with the sealing ring 5 and the locking disk 4 .

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than a restrictive technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution should be included in the scope of the claims of the utility model.

Claims

1. A self-locking assembly flange, characterized in that: It includes a flange body, a connection port and a sealing flange; the connection port is located on one side of the flange body, is fixedly connected to the flange body, and connects the inner and outer spaces of the flange body to realize liquid transportation of the magnetic pump; the sealing flange is located between the flange body and the connection port, is screwed on the outside of the connection port through threaded fitting, and is used to seal the connection port; The sealing flange includes a locking plate, a sealing ring, a clamping link and a clamping spring; the locking plate is located on the outside of the connecting port and is threadedly connected to the connecting port; the sealing ring is located inside the locking plate and is in conflict with the connecting port; the clamping link is located inside the locking plate, with one end connected to the locking plate and the other end in conflict with the sealing ring; the clamping spring is located between the clamping link and the locking plate, connecting the clamping link and the locking plate.

2. A self-locking mounting flange according to claim 1, characterized in that: The locking disk includes a connecting disk, an outer disk and an inner disk; the connecting disk is located on one side of the outer disk, is provided with an internal thread, and cooperates with the connecting port; the outer disk is located on one side of the connecting disk, and is fixedly connected to the connecting disk; the inner disk is located inside the outer disk, is connected to the clamping connecting rod and the sealing ring, and conflicts with the outer disk.

3. A self-locking mounting flange according to claim 2, characterized in that: The inner wall of the outer disk is in a conical shape, and the inner diameter increases as it approaches the connecting disk. When the outer disk moves toward the connecting port, the inner diameter gradually decreases, thereby pressing the inner disk.

4. A self-locking mounting flange according to claim 2, characterized in that: The inner disk is annular in shape, and its outer diameter matches that of the outer disk. When the outer disk is threadedly connected with the connecting disk, the outer disk moves toward the connecting port to press the inner disk.

5. A self-locking mounting flange according to claim 4, characterized in that: The outer diameter of the inner disk matches the outer diameter of the thread of the connecting disk, and is assembled to the inside of the outer disk through interference fit.

6. The self-locking mounting flange according to claim 1, characterized in that: The sealing rings are provided in no less than two numbers, symmetrically distributed, and combined to form a complete ring.

7. A self-locking mounting flange according to claim 6, characterized in that: The plurality of sealing rings are sealed against each other by means of engine oil.

8. The self-locking mounting flange according to claim 1, characterized in that: The clamping connecting rods and the clamping springs are arranged in an even number and are evenly distributed on the outer circle of the sealing ring.

9. A self-locking mounting flange according to claim 8, characterized in that: The two ends of the clamping connecting rod are respectively hingedly connected with the sealing ring and the locking disk.

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