An eccentric locking mechanism of a quick release flange

Abstract

The utility model provides a kind of eccentric locking mechanism of quick-release flange, it is related to quick-release flange technical field, including flange pipe, connecting seat and clamping jaw, one end of two clamping jaws is equipped with opening and closing mechanism, the one end fixedly connected with clamping jaw of clamping jaw has clamping bar, the outside of flange pipe is equipped with eccentric locking mechanism;The utility model two clamping jaws will be flange pipe and external pipeline tightly after clamping, rotate downward with rotation axis as center by push-pull rod drive curved rod, clamping plate is connected in the bottom end of curved rod, can drive clamping plate to rotate downward, and the clamping groove of clamping plate inside just engages with clamping bar, and the top of eccentric wheel and the bottom end of top rod are mutually locked position when this time, to reinforce clamping jaw, so that flange pipe and external pipeline connection are more stable, to solve the flange in prior art is usually connected with bolt, when needing to disassemble flange, it is very troublesome, step is complex, inconvenient operation problem.

Description

Technical Field

[0001] This utility model relates to the field of quick-release flange technology, and in particular to an eccentric locking mechanism for quick-release flanges. Background Technology

[0002] Quick-release flanges (such as KF flanges), also known as fast-release flanges, are characterized by rapid assembly and disassembly and reliable sealing. They adopt a standardized design and adapt to different surface differences through O-ring seals, making them particularly suitable for confined spaces or scenarios requiring frequent seal replacement (such as nuclear power and vacuum equipment). Flanges are typically used for connecting existing pipelines, and they are usually connected with bolts. When it is necessary to disassemble the flange, it is very troublesome, complicated and inconvenient to operate. Therefore, this utility model proposes an eccentric locking mechanism for quick-release flanges to solve the above problems. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes an eccentric locking mechanism for quick-release flanges, which solves the problem that in the prior art, flanges are usually connected by bolts, making disassembly of the flanges very troublesome, complicated, and inconvenient.

[0004] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: an eccentric locking mechanism for a quick-release flange, including a flange tube, a connecting seat and clamps, wherein the connecting seat is fixedly connected to the outside of the flange tube, and clamps are symmetrically hinged on both sides of the connecting seat, one end of the two clamps is provided with an opening and closing mechanism, one end of the clamps is fixedly connected with a locking rod, and an eccentric locking mechanism is provided on the outside of the flange tube.

[0005] A further improvement is made in that: the eccentric locking mechanism includes a fixed seat, a rotating shaft, a curved rod, a locking plate, a locking groove, an eccentric wheel, a push-pull rod, and a top rod. The fixed seat is fixedly connected to the outside of the flange pipe. The bottom of the fixed seat is hinged to the curved rod through the rotating shaft. The bottom of the curved rod is fixedly connected to the locking plate. The locking plate has symmetrical locking grooves on both sides. An eccentric wheel is hinged to one end of the curved rod. A push-pull rod is fixedly connected to the outside of the eccentric wheel. A top rod is fixedly connected to one side of the fixed seat.

[0006] A further improvement is that the curved rod is designed with an L-shaped structure, the inner wall of the slot is engaged with the outer wall of the rod, and the outer wall of the eccentric wheel is fitted with the bottom end of the top rod.

[0007] A further improvement is that the connecting end of the flange tube is provided with an outer edge, and the inside of the clamp is provided with a groove, wherein the outer wall of the outer edge is engaged with the inner wall of the groove.

[0008] A further improvement is made in that: the opening and closing mechanism includes a sliding groove, a sliding rod, and a bidirectional lead screw. One end of the gripper is provided with a sliding groove, and the sliding rod is rotatably connected inside the sliding groove. A bidirectional lead screw is provided in the middle of the two grippers, and the two ends of the bidirectional lead screw pass through the interior of the two sliding rods and are threadedly connected to them.

[0009] A further improvement is that a knob is fixedly connected to one end of the bidirectional lead screw, and the outer side of the knob is provided with multiple arc-shaped grooves and an anti-slip sleeve is wrapped around the outer side of the knob.

[0010] A further improvement is that the flange is made of carbon steel and has a galvanized layer on both the inner and outer sides.

[0011] The beneficial effects of this utility model are as follows: After the two clamps tighten the flange pipe to the external pipeline, the push-pull rod drives the curved rod to rotate downward around the rotation axis. The positioning plate is connected to the bottom end of the curved rod, which can drive the positioning plate to rotate downward. The slot on the inner side of the positioning plate is exactly engaged with the clamping rod. At this time, the top of the eccentric wheel and the bottom end of the top rod press against each other to lock the position, which is used to reinforce the clamps and make the connection between the flange pipe and the external pipeline more stable. This solves the problem that in the prior art, flanges are usually connected by bolts, which is very troublesome, complicated and inconvenient to operate when the flange needs to be disassembled. Attached Figure Description

[0012] Figure 1 This is the front view of the present invention; Figure 2 This is a schematic diagram of the gripper structure of this utility model; Figure 3 This is a schematic diagram of the eccentric locking mechanism of this utility model; Figure 4 This is a diagram showing the open state of the eccentric locking mechanism of this utility model.

[0013] The components are: 1. Flange pipe; 2. Connecting seat; 3. Clamp; 4. Locking rod; 5. Fixed seat; 6. Rotating shaft; 7. Curved rod; 8. Locking plate; 9. Locking groove; 10. Eccentric wheel; 11. Push-pull rod; 12. Groove; 13. Slide groove; 14. Sliding rod; 15. Two-way screw; 16. Top rod. Detailed Implementation

[0014] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0015] according to Figure 1 , 2As shown in Figures 3 and 4, this embodiment proposes an eccentric locking mechanism for a quick-release flange, including a flange tube 1, a connecting seat 2, and clamps 3. The connecting seat 2 is fixedly connected to the outside of the flange tube 1, and clamps 3 are symmetrically hinged on both sides of the connecting seat 2. One end of each clamp 3 is provided with an opening and closing mechanism, and one end of each clamp 3 is fixedly connected with a locking rod 4. An eccentric locking mechanism is provided on the outside of the flange tube 1. When the flange is in use, the opening and closing mechanism first drives the two clamps 3 to move away from each other to increase the internal space of the clamps 3. Then, the external pipe is connected to the bottom end of the flange tube 1. The opening and closing mechanism then drives the two clamps 3 to move closer together to clamp the flange tube 1 to the external pipe. Finally, the eccentric locking mechanism locks the position of the two locking rods 4 to completely connect the flange tube 1 to the external pipe.

[0016] The eccentric locking mechanism includes a fixed seat 5, a rotating shaft 6, a curved rod 7, a locking plate 8, a locking groove 9, an eccentric wheel 10, a push-pull rod 11, and a top rod 16. The fixed seat 5 is fixedly connected to the outer side of the flange pipe 1. The bottom of the fixed seat 5 is hinged to the curved rod 7 via the rotating shaft 6. The bottom of the curved rod 7 is fixedly connected to the locking plate 8. Locking grooves 9 are symmetrically arranged on both sides of the locking plate 8. One end of the curved rod 7 is hinged to the eccentric wheel 10. The outer side of the eccentric wheel 10 is fixedly connected to the push-pull rod 11. The top rod 16 is fixedly connected to one side of the fixed seat 5. The curved rod 7 is L-shaped. The inner wall of the locking groove 9 engages with the outer wall of the locking rod 4. The outer wall of the eccentric wheel 10 fits against the bottom end of the top rod 16. After the two clamps 3 clamp the flange pipe 1 to the external pipe, the flange is then... The push-pull rod 11 drives the curved rod 7 to rotate downwards around the rotation axis 6. The locking plate 8 is connected to the bottom end of the curved rod 7, which can drive the locking plate 8 to rotate downwards. The locking groove 9 on the inner side of the locking plate 8 is engaged with the locking rod 4. At this time, the top of the eccentric wheel 10 and the bottom end of the top rod 16 are pressed together to lock the position, which is used to reinforce the clamp 3, making the connection between the flange pipe 1 and the external pipeline more stable. When it is necessary to disconnect the flange pipe 1 from the external pipeline, the push-pull rod 11 drives the curved rod 7 to rotate upwards around the rotation axis 6. The eccentric wheel 10 and the top rod 16 are no longer pressed together. The curved rod 7 can drive the locking plate 8 to rotate upwards. The locking groove 9 and the locking rod 4 separate from each other. After the clamp 3 loosens the flange pipe 1 from the external pipeline, it pulls the flange pipe 1 to separate from the external pipeline.

[0017] The flange tube 1 has an outer edge at its connecting end, and the gripper 3 has a groove 12 inside. The outer wall of the outer edge is engaged with the inner wall of the groove 12. The opening and closing mechanism includes a slide groove 13, a sliding rod 14, and a two-way screw 15. A knob is fixedly connected to one end of the two-way screw 15. The knob has multiple arc-shaped grooves on its outer side and is covered with an anti-slip sleeve. The anti-slip sleeve has a high coefficient of friction, which increases the friction between the palm and the knob and prevents slippage. The arc-shaped grooves make it easier for people to hold the knob.

[0018] One end of the gripper 3 is provided with a groove 13, and a sliding rod 14 is rotatably connected inside the groove 13. A bidirectional lead screw 15 is provided in the middle of the two grippers 3. The two ends of the bidirectional lead screw 15 pass through the interior of the two sliding rods 14 and are threadedly connected to them. The bidirectional lead screw 15 is rotated forward and backward by a knob. The bidirectional lead screw 15 is threadedly engaged with the sliding rods 14, and the connecting seat 2, grippers 3, and sliding rods 14 mutually limit each other, so as to drive the two sliding rods 14 to move simultaneously in different directions. The sliding rods 14 slide in the groove 13 at one end of the gripper 3, which counteracts the movement of the sliding rods. The interference between the sliding rods 14 and the clamps 3 is as follows: when the two sliding rods 14 approach each other, they cause the two clamps 3 to close together and clamp the flange pipe 1 to the external pipe. When the two sliding rods 14 move away from each other, they cause the two clamps 3 to move away from each other, thereby increasing the internal space of the clamps 3. This allows the external pipe and the flange pipe 1 to connect inside the clamps 3. When the clamps 3 clamp the external pipe and the flange pipe 1, the outer edge of the external pipe and the flange pipe 1 enters the groove 12. The groove 12 wraps around the outer edge, making the connection between the external pipe and the flange pipe 1 more secure.

[0019] The flange 1 is made of carbon steel. A galvanized layer is provided on both the inner and outer sides of the flange 1. The steel is immersed in molten zinc, so that a zinc layer is attached to its surface. The hot-dip galvanized layer is relatively thick and firmly bonded, with good corrosion resistance and wear resistance, which can effectively extend the service life of the flange 1.

[0020] The eccentric locking mechanism of this quick-release flange has two grippers 3 that clamp the flange pipe 1 to the external pipeline. After clamping the flange pipe 1 to the external pipeline, the push-pull rod 11 drives the curved rod 7 to rotate downward around the rotation axis 6. The locking plate 8 is connected to the bottom end of the curved rod 7, which can drive the locking plate 8 to rotate downward. The locking groove 9 on the inner side of the locking plate 8 is engaged with the locking rod 4. At this time, the top of the eccentric wheel 10 and the bottom end of the top rod 16 are pressed against each other to lock the position, which is used to reinforce the grippers 3 and make the connection between the flange pipe 1 and the external pipeline more stable. When it is necessary to disconnect the flange pipe 1 from the external pipeline, the push-pull rod 11 drives the curved rod 7 to rotate upward around the rotation axis 6. The eccentric wheel 10 and the top rod 16 are no longer pressed against each other. The curved rod 7 can drive the locking plate 8 to rotate upward. The locking groove 9 and the locking rod 4 separate. After the grippers 3 loosen the flange pipe 1 from the external pipeline, they pull the flange pipe 1 to separate from the external pipeline.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An eccentric locking mechanism for a quick-release flange, comprising a flange tube (1), a connecting seat (2), and a clamp (3), characterized in that: A connecting seat (2) is fixedly connected to the outside of the flange tube (1). Clamping jaws (3) are symmetrically hinged on both sides of the connecting seat (2). An opening and closing mechanism is provided at one end of the two clamping jaws (3). A locking rod (4) is fixedly connected to one end of the clamping jaws (3). An eccentric locking mechanism is provided on the outside of the flange tube (1). The eccentric locking mechanism includes a fixed seat (5), a rotating shaft (6), a curved rod (7), a locking plate (8), a slot (9), an eccentric wheel (10), a push-pull rod (11), and a top rod (16). The fixed seat (5) is fixedly connected to the outside of the flange pipe (1). The bottom of the fixed seat (5) is hinged to the curved rod (7) through the rotating shaft (6). The bottom of the curved rod (7) is fixedly connected to the locking plate (8). The locking plate (8) has symmetrical slots (9) on both sides. One end of the curved rod (7) is hinged to the eccentric wheel (10). The outside of the eccentric wheel (10) is fixedly connected to the push-pull rod (11). The top rod (16) is fixedly connected to one side of the fixed seat (5).

2. The eccentric locking mechanism for a quick-release flange according to claim 1, characterized in that: The curved rod (7) is designed with an L-shaped structure. The inner wall of the slot (9) is engaged with the outer wall of the rod (4), and the outer wall of the eccentric wheel (10) is attached to the bottom end of the top rod (16).

3. The eccentric locking mechanism for a quick-release flange according to claim 1, characterized in that: The flange pipe (1) has an outer edge at the connecting end, and the clamp (3) has a groove (12) inside, with the outer wall of the outer edge engaging with the inner wall of the groove (12).

4. The eccentric locking mechanism for a quick-release flange according to claim 1, characterized in that: The opening and closing mechanism includes a groove (13), a sliding rod (14) and a two-way screw (15). One end of the gripper (3) is provided with a groove (13), and the sliding rod (14) is rotatably connected inside the groove (13). The two grippers (3) are provided with a two-way screw (15) in the middle. The two ends of the two-way screw (15) pass through the interior of the two sliding rods (14) and are threadedly connected to them.

5. The eccentric locking mechanism for a quick-release flange according to claim 4, characterized in that: One end of the bidirectional lead screw (15) is fixedly connected to a knob, and the outer side of the knob is provided with multiple arc-shaped grooves and an anti-slip sleeve is wrapped around the outer side of the knob.

6. The eccentric locking mechanism for a quick-release flange according to claim 1, characterized in that: The flange (1) is made of carbon steel and has a galvanized layer on both the inner and outer sides.

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