Quickly detachable SAE flange

Abstract

The utility model relates to a SAE flange of quick assembly and disassembly belongs to metallurgical industry flange technical field. Technical scheme is: contain first flange (1), second flane (2), pin shaft (3), clamping spring (4), locking bolt (5), locking nut (6), first half cone sleeve (7) and second half cone sleeve (8), first flange (1) and second flane (2) are all half circular structure with connecting pipeline cooperation, and one end of first flange (1) and second flane (2) is connected together through pin shaft (3) and clamping spring (4), and the other end of first flange (1) is equipped with locking bolt (5) and locking nut (6), and the other end of second flane (2) is equipped with open rectangular notch (203), the inside of first flange (1) and second flane (2) is equipped with first half cone sleeve (7) and second half cone sleeve (8). The utility model has the advantages of realizing the quick assembly and disassembly operation of flange, effectively shortening the operation time, and improving the work efficiency.

Description

Technical Field

[0001] This utility model relates to a quick-assembly and disassembly SAE flange, belonging to the field of flange technology in the metallurgical industry. Background Technology

[0002] SAE flanges are mainly used in hydraulic systems, engineering machinery, industrial equipment and other applications requiring high-pressure sealing. Their internal pipe joint sealing groove has an O-ring built-in and is fixed to the mating flange by bolts. They can withstand high-pressure impacts and prevent fluid leakage. They have the advantages of compact structure and strong pressure resistance, and are widely used in metallurgical production lines, hydraulic pumps and valves, engineering machinery and other scenarios.

[0003] like Figure 9 , 10 As shown, SAE flanges are typically fixed to mating flanges by four bolts. During each installation, after the flanges are connected together, each bolt is passed through the flange hole on the flange in sequence, and then the flanges are connected and installed together using nuts. Each time they are disassembled, the bolts and nuts need to be unscrewed one by one.

[0004] SAE flange disassembly and assembly are cumbersome, time-consuming, physically demanding, and inefficient. This is especially true for high-pressure SAE flanges used in metallurgical production lines, particularly in confined spaces, densely packed equipment, and complex series-parallel piping systems with numerous SAE flange joints. The multi-bolt structure is prone to thread wear, disassembly difficulties, and bolt loss during repeated disassembly and assembly, requiring frequent replacement of spare parts and increasing maintenance costs and repair time. Furthermore, inadequate tightening of some bolts can easily lead to high-pressure seal misalignment, leakage, and production stoppages, severely disrupting the normal production rhythm. Therefore, a new technical solution is urgently needed to address these challenges. Utility Model Content

[0005] The purpose of this invention is to provide a quick-assembly and disassembly SAE flange, enabling rapid flange assembly and disassembly operations, effectively shortening operation time, improving work efficiency, and solving the problems existing in the background technology.

[0006] The technical solution of this utility model is:

[0007] A quick-assembly and disassembly SAE flange includes a first flange, a second flange, a pin, a retaining ring, a locking bolt, a locking nut, a first semi-conical sleeve, and a second semi-conical sleeve. Both the first flange and the second flange are semi-circular structures that mate with the connecting pipe. One end of the first flange and the second flange are connected together by a pin and a retaining ring. The other end of the first flange is provided with a locking bolt and a locking nut. The other end of the second flange is provided with an open rectangular groove that mates with the locking bolt and the locking nut. The inner sides of the first flange and the second flange are provided with a first semi-conical sleeve and a second semi-conical sleeve that engage with each other.

[0008] Both the first and second semi-conical sleeves are semi-circular ring structures that mate with the connecting pipe. The first semi-conical sleeve has positioning bosses at both ends, and the second semi-conical sleeve has positioning grooves at both ends. The positioning bosses at both ends of the first semi-conical sleeve and the positioning grooves at both ends of the second semi-conical sleeve engage with each other.

[0009] The upper surfaces of the first and second semi-conical sleeves are respectively provided with mutually cooperating conical surfaces with the first and second flanges. The positioning bosses at both ends of the first semi-conical sleeve and the positioning grooves at both ends of the second semi-conical sleeve engage together to form an annular conical sleeve.

[0010] Both the first flange and the second flange have an extended circular boss at one end, and the extended circular boss of the first flange and the second flange have pin holes that mate with the pin shaft respectively; both the first flange and the second flange have a rectangular boss at the other end, the rectangular boss of the first flange has an external hexagonal countersunk hole and a circular through hole that mate with the locking bolt and the locking nut, and the rectangular boss of the second flange has an open rectangular slot.

[0011] The beneficial effects of this utility model are: the device can quickly complete the disassembly and assembly of SAE flanges by simply removing and installing a locking nut, effectively shortening the operation time, improving work efficiency, reducing the labor intensity of employees, and improving construction quality. It has a simple structure, is easy to operate, and is simple and efficient, effectively solving the problem of rapid disassembly and assembly of SAE flanges. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a front view of the first flange of this utility model;

[0014] Figure 3 This is a schematic diagram of the back of the first flange of this utility model;

[0015] Figure 4 This is a schematic diagram of the back of the second flange of this utility model;

[0016] Figure 5 This is a front view of the second flange of this utility model;

[0017] Figure 6 This is a schematic diagram of the structure of the first semi-conical sleeve of this utility model;

[0018] Figure 7 This is a schematic diagram of the structure of the second half-cone sleeve of this utility model;

[0019] Figure 8 This is a schematic diagram of the structure of the present invention in use;

[0020] Figure 9This is a top view of an SAE flange in the background art;

[0021] Figure 10 This is a front view of an SAE flange in the background art;

[0022] In the diagram: 001 - First connector, 002 - Second connector;

[0023] 1-First flange, 2-Second flange, 3-Pin, 4-Snap ring, 5-Locking bolt, 6-Locking nut, 7-First half-conical sleeve, 8-Second half-conical sleeve;

[0024] 1001-Flat contact surface, 1002-Conical contact surface, 1003-Rectangular boss, 1004-External hexagonal countersunk hole, 1005-Circular through hole, 1006-Extended circular boss, 1007-Pin hole, 1008-Side plane;

[0025] 201-Rectangular boss, 202-Circular groove, 203-Open rectangular slot, 204-Extending circular boss, 205-Pin hole, 206-Side plane;

[0026] 701 - Conical surface, 702 - Positioning boss;

[0027] 801 - Positioning Groove. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and examples.

[0029] See attached document Figure 1-8 A quick-assembly and disassembly SAE flange includes a first flange 1, a second flange 2, a pin 3, a retaining ring 4, a locking bolt 5, a locking nut 6, a first semi-conical sleeve 7, and a second semi-conical sleeve 8. Both the first flange 1 and the second flange 2 are semi-circular structures that mate with the connecting pipe. One end of the first flange 1 and the second flange 2 are connected together by the pin 3 and the retaining ring 4. The other end of the first flange 1 is provided with a locking bolt 5 and a locking nut 6. The other end of the second flange 2 is provided with an open rectangular slot 203 that mates with the locking bolt 5 and the locking nut 6. The inner sides of the first flange 1 and the second flange 2 are provided with a first semi-conical sleeve 7 and a second semi-conical sleeve 8 that engage with each other.

[0030] In this embodiment, refer to the appendix Figure 1-8 The SAE flange mainly includes a first flange 1, a second flange 2, a pin 3, a snap ring 4, a locking bolt 5, a locking nut 6, a first half-cone sleeve 7, and a second half-cone sleeve 8, wherein:

[0031] like Figure 2 , 3As shown, the first flange 1 has an integral structure of an upper flange and a lower flange. Its interior has a planar contact surface 1001 at the bottom and a conical contact surface 1002 at the top. One outer end has a rectangular boss 1003, with a hexagonal countersunk hole 1004 on its outer side and a circular through hole 1005 in its center. The other outer end has two extended circular bosses 1006 spaced apart, each with a coaxial pin hole 1007. The centerline of the pin hole 1007 coincides with the side plane 1008 of the first flange 1.

[0032] like Figure 4 , 5 As shown, the second flange 2 has a rectangular boss 201 on one outer end, and a circular groove 202 on the outer side of the rectangular boss 201, with an open rectangular slot 203 in the middle; the other outer end has an extended circular boss 204 in the middle, the thickness of which is consistent with the distance between the two extended circular bosses 1006 of the first flange 1. The extended circular boss 204 has a pin hole 205, the inner diameter of which is consistent with the two coaxial pin holes 1007 of the first flange 1, and its center line coincides with the side plane 206 of the second flange 2. The rest of the structure is consistent with the first flange 1.

[0033] The first flange 1 and the second flange 2 are connected by a pin 3 and positioned by a retaining ring 4. The locking bolt 5 is an external hexagonal bolt. The external hexagonal countersunk hole 1004 of the first flange 1 is consistent with the external hexagonal part of the locking bolt 5 to constrain the locking bolt 5 and prevent rotation. The diameter of the circular groove 202 of the second flange 2 is slightly larger than the outer circle diameter of the locking nut 6 to constrain the locking nut 6 and prevent it from being misaligned.

[0034] The first flange 1 and the second flange 2 can rotate along the axis of the pin 3 and can be locked and constrained by the locking bolt 5 and the locking nut 6.

[0035] like Figure 6 As shown, the first semi-conical sleeve 7 is designed as a semi-circular ring structure. Its upper surface is a conical surface 701, the taper of which is consistent with the conical contact surface 1002 of the first flange 1 and the second flange 2. Its lower surface is a flat surface, consistent with the flat contact surface 1001 of the first flange 1 and the second flange 2. The outer radius of the first semi-conical sleeve 7 is consistent with the inner radius of the first flange 1 and the second flange 2. Positioning bosses 702 are provided at both ends of the first semi-conical sleeve 7.

[0036] like Figure 7 As shown, the second half-cone sleeve 8 has positioning grooves 801 at both ends, the structure of which matches the positioning boss 702 of the first half-cone sleeve 7, and the rest of the structure is consistent with the first half-cone sleeve 7. The first half-cone sleeve 7 and the second half-cone sleeve 8 are constrained and positioned by the positioning boss 702 and the positioning grooves 801, forming an annular conical sleeve, which is installed above the first joint 001.

[0037] This device uses flanges with the same taper surface to mate with tapered sleeves, and uses locking bolts to convert the horizontal constraint force into a vertical positive pressure on the connecting joint, thereby achieving the functions of constraint, fixation, and sealing. Simultaneously, the first flange 1 and the second flange 2 are connected by a hinge and secured by a single locking bolt, allowing for quick assembly and disassembly.

[0038] like Figure 8 As shown, the specific procedures for disassembling and assembling SAE flange pipelines are as follows:

[0039] During installation: Install the first half-cone sleeve 7 and the first half-cone sleeve 8 onto the first connector 001 or the second connector 002, and align the first connector 001 and the second connector 002.

[0040] Place this device outside the joint, so that the planar contact surface 1001 of the first flange 1 and the second flange 2 coincides with the lower surface of the first half-cone sleeve 7 and the first half-cone sleeve 8, and the conical contact surface 1002 of the first flange 1 and the second flange 2 coincides with the conical surface 701 of the first half-cone sleeve 7 and the first half-cone sleeve 8. Rotate to close the first joint 001 and the second joint 002, and tighten the lock nut 6 to complete the quick assembly of the SAE flange.

[0041] During disassembly: Loosen the lock nut 6 and rotate to open the first connector 001 and the second connector 002 to complete the quick disassembly of the SAE flange.

Claims

1. A quick disconnect SAE flange characterized by: It includes a first flange (1), a second flange (2), a pin (3), a snap ring (4), a locking bolt (5), a locking nut (6), a first half-cone sleeve (7), and a second half-cone sleeve (8). The first flange (1) and the second flange (2) are both semi-circular structures that mate with the connecting pipe. One end of the first flange (1) and the second flange (2) are connected together by a pin (3) and a snap ring (4). The other end of the first flange (1) is provided with a locking bolt (5) and a locking nut (6). The other end of the second flange (2) is provided with an open rectangular slot (203) that mates with the locking bolt (5) and the locking nut (6). The inner sides of the first flange (1) and the second flange (2) are provided with a first half-cone sleeve (7) and a second half-cone sleeve (8) that mesh together.

2. The quick detachable SAE flange according to claim 1, wherein: The first half-cone sleeve (7) and the second half-cone sleeve (8) are both semi-circular ring structures that cooperate with the connecting pipe. The first half-cone sleeve (7) has positioning bosses (702) at both ends, and the second half-cone sleeve (8) has positioning grooves (801) at both ends. The positioning bosses (702) at both ends of the first half-cone sleeve (7) and the positioning grooves (801) at both ends of the second half-cone sleeve (8) are engaged together.

3. A quick detachable SAE flange according to claim 2, characterized in that: The upper surfaces of the first half-conical sleeve (7) and the second half-conical sleeve (8) are respectively provided with mutually cooperating conical surfaces with the first flange (1) and the second flange (2). The positioning bosses (702) at both ends of the first half-conical sleeve (7) and the positioning grooves (801) at both ends of the second half-conical sleeve (8) are engaged together to form an annular conical sleeve.

4. The quick detachable SAE flange of claim 1, wherein: One end of the first flange (1) and the second flange (2) is provided with an extended circular boss. The extended circular boss of the first flange (1) and the second flange (2) are respectively provided with pin holes that cooperate with the pin shaft (3). The other end of the first flange (1) and the second flange (2) is provided with a rectangular boss. The rectangular boss of the first flange (1) is provided with an external hexagonal countersunk hole (1004) and a circular through hole (1005) that cooperate with the locking bolt (5) and the locking nut (6). The rectangular boss of the second flange (2) is provided with an open rectangular slot (203).

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