Quick-release flange plate

Abstract

The utility model relates to a flange technical field discloses a quick detachable flange plate, including flange no.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, specifically a quick-release flange. Background Technology

[0002] In industrial piping systems, flanges are one of the most widely used connection components. Traditional flanges typically use a bolted fastening structure, which involves tightening multiple sets of bolts / nuts sequentially along the circumference to achieve a sealed connection between the two flanges. While bolted connections are secure, they are relatively difficult to disassemble, and bolts exposed to the external environment for extended periods are prone to rust. Rusty bolts are even more difficult to disassemble. For jobs requiring frequent assembly and disassembly, bolted flanges are ill-suited for the task.

[0003] Chinese patent discloses a quick-release self-locking flange (authorization announcement number CN218441188U). This patented technology involves pressing two flanges together during use. A clip on flange one inserts into the bayonet of flange two. Compared to existing technologies, the clip in this invention has a triangular stop at one end that inserts into the bayonet. This triangular stop passes through flange two and locks onto one side of flange two, thus securing the connection between flange one and flange two. When the clip engages flange one and flange two, the compressed spring and two layers of rubber rings generate force, making the connection between flange one and flange two more stable.

[0004] However, it has certain drawbacks: the triangular stop and the edge of the bayonet are in a point-contact, rigid engagement, which is prone to dulling or deformation of the stop's edges due to mechanical wear during frequent disassembly and assembly, resulting in a decrease in the engagement force and a significant decrease in the stability of the flange connection with the increase of usage; at the same time, this structure relies on springs and rubber rings to provide auxiliary clamping force to compensate for loose engagement, but once the core locking function of the triangular stop wears down, it will directly cause the flange sealing surface to shift, posing a risk of leakage; therefore, this quick-release mechanism needs to be optimized. Utility Model Content

[0005] The purpose of this invention is to provide a quick-release flange to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quick-release flange includes a first flange and a second flange located below the first flange. Both ends of the upper surfaces of the first and second flanges are provided with a docking mechanism. The docking mechanism includes a docking frame. A rack is slidably connected to the inner right surface of the docking frame in a vertical direction. A rotating rod is rotatably connected to the side surface of the docking frame away from the center position of the first and second flanges. A gear is fixedly connected to the end of the rotating rod inside the docking frame, and a ratchet is fixedly connected to the end of the rotating rod outside the docking frame. A positioning element is provided on the side surface of the docking frame away from the center position of the first and second flanges and above the rotating rod.

[0008] As a further embodiment of this utility model: the positioning component includes a spring, with a positioning block and a pawl fixedly connected to the upper and lower ends of the spring, respectively, and a positioning rod rotatably connected to the end of the pawl away from the rotating rod.

[0009] As a further improvement of this utility model: stabilizing mechanisms are provided at both the left and right ends of the upper surface of the flange two, and the stabilizing mechanism includes a stabilizing rod, with a screw fixed to the lower end of the stabilizing rod.

[0010] As a further embodiment of this utility model: the lower end of the docking frame is fixed to the upper surface of flange one, the lower end of the rack is fixed to the upper surface of flange two, and the rack moves through flange one and flange two, and the rack is meshed with a gear.

[0011] As a further embodiment of this utility model: the pawl is movably engaged with the ratchet, and the positioning block and the positioning rod are both fixed to the side surface of the docking frame away from the center positions of flange one and flange two.

[0012] As a further embodiment of this utility model: the stabilizer bar movably penetrates through flange one and flange two, the diameter of the stabilizer bar is larger than the diameter of the screw, and the screw is threadedly connected to the inside of the upper surface of flange two.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a combination of rack and pinion meshing transmission and a ratchet and pawl one-way locking mechanism to achieve single-handed pressing for flange one installation and automatic locking. Disassembly requires only a single pull of the pawl to quickly separate flange one from flange two, significantly reducing reliance on tools, space, and manpower. Simultaneously, the stabilizer bar penetrating the double flange structure, combined with a threaded connection design, effectively suppresses sealing surface misalignment caused by pipeline vibration or uneven loading, ensuring uniform pressure on the gasket without leakage and improving connection stability. Furthermore, the rigid locking method, where the pawl precisely engages with the ratchet tooth groove under spring action, completely eliminates the risk of traditional bolt loosening. Combined with rust-resistant materials and a low-wear transmission structure, this significantly extends the service life of the flange under frequent disassembly and assembly conditions. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a quick-release flange.

[0016] Figure 2 This is a schematic diagram of the docking mechanism in a quick-release flange.

[0017] Figure 3 This is a schematic diagram of the positioning element in a quick-release flange.

[0018] Figure 4 This is a schematic diagram of the stabilizing mechanism in a quick-release flange.

[0019] In the diagram: 1. Flange 1; 2. Flange 2; 3. Docking mechanism; 4. Docking frame; 5. Rack; 6. Rotating rod; 7. Gear; 8. Ratchet; 9. Positioning component; 10. Spring; 11. Positioning block; 12. Pawl; 13. Positioning rod; 14. Stabilizing mechanism; 15. Stabilizing rod; 16. Screw. Detailed Implementation

[0020] Please see Figures 1-3 In this embodiment of the present invention, a quick-release flange includes a flange 1 and a flange 2 located below the flange 1. Both ends of the upper surfaces of the flange 1 and flange 2 are provided with a docking mechanism 3. The docking mechanism 3 includes a docking frame 4. The lower end of the docking frame 4 is fixed to the upper surface of the flange 1. A rack 5 is slidably connected vertically to the inner right surface of the docking frame 4. The lower end of the rack 5 is fixed to the upper surface of the flange 2, and the rack 5 movably passes through the flange 1 and flange 2. A rotating rod 6 is rotatably connected to the side surface of the docking frame 4 away from the center of the flange 1 and flange 2. The rotating rod 6 is located at the docking... A gear 7 is fixedly connected to one end inside the frame 4, and a rack 5 is meshed with the gear 7. A ratchet 8 is fixedly connected to one end of the rotating rod 6 located outside the docking frame 4. A positioning element 9 is provided on the side surface of the docking frame 4 away from the center position of flange 1 and flange 2 and above the rotating rod 6. The positioning element 9 includes a spring 10. A positioning block 11 and a pawl 12 are fixedly connected to the upper and lower ends of the spring 10, respectively. The pawl 12 is movably attached to the ratchet 8. A positioning rod 13 is rotatably connected to the inside of the end of the pawl 12 away from the rotating rod 6. The positioning block 11 and the positioning rod 13 are both fixedly connected to the side surface of the docking frame 4 away from the center position of flange 1 and flange 2.

[0021] The mating frame 4 is bolted to the upper surface of flange 1; the rack 5 is welded to the upper surface of flange 2.

[0022] A slider is fixed to the inner right surface of the docking frame 4, and a groove matching the slider is opened on the right surface of the rack 5, so that the rack 5 can move stably up and down inside the docking frame 4.

[0023] The pawl 12 has a chamfered end that matches the tooth profile of the ratchet 8. When the pawl 12 is inserted into the tooth groove, the preload of the spring 10 causes the chamfered end to form a self-locking angle with the tooth surface of the ratchet 8, which can prevent the pawl 12 from accidentally coming out under vibration conditions.

[0024] Pad 12 engages with ratchet 8, allowing ratchet 8 and lever 6 to rotate counterclockwise normally, but not clockwise; when pad 12 is pulled away from ratchet 8, ratchet 8 and lever 6 can rotate clockwise.

[0025] During the process of flange 1 being attached to flange 2 from top to bottom, rack 5 passes through the two flanges and into the mating frame 4. When it meshes with gear 7, it drives it to rotate counterclockwise until flange 1 and flange 2 are completely attached. Due to the cooperation of pawl 12 and ratchet 8, flange 1 and flange 2 will not separate.

[0026] After pulling the pawl 12 upward away from the ratchet 8, flange 1 can be pulled upward directly, separating flange 1 and flange 2.

[0027] Sealing gaskets can be installed on the opposite surfaces of flange 1 and flange 2. When flange 1 and flange 2 are tightly fitted and the sealing gasket is compressed, the pawl 12 is exactly located in one tooth groove of the ratchet 8, and the ratchet 8 and the lever 6 will not rotate a certain distance.

[0028] exist Figure 1 and Figure 4 In the middle: Stabilizing mechanisms 14 are provided at both ends of the upper surface of flange 2. The stabilizing mechanism 14 includes a stabilizing rod 15. The stabilizing rod 15 movably passes through flange 1 and flange 2. A screw 16 is fixedly connected to the lower end of the stabilizing rod 15. The diameter of the stabilizing rod 15 is larger than the diameter of the screw 16. The screw 16 is threadedly connected to the inside of the upper surface of flange 2.

[0029] The gap between the stabilizer bar 15 and the through holes of the two flanges is ≤0.05mm, achieving radial micro-motion constraint.

[0030] The working principle of this utility model is as follows: When installing flange 1 and flange 2, flange 1 is attached to flange 2 from top to bottom. At this time, rack 5 passes through flange 1 and flange 2 and is inserted into the docking frame 4. The vertical movement of rack 5 drives gear 7, which meshes with it, to rotate counterclockwise. At the same time, it drives the rotating rod 6 and ratchet 8, which are fixed to gear 7, to rotate counterclockwise. When flange 1 and flange 2 are completely attached and the sealing gasket is compressed, spring 10 pushes pawl 12 to embed into the tooth groove of ratchet 8. The unidirectional locking action of pawl 12 and ratchet 8 prevents rotating rod 6 from rotating clockwise, ensuring that the two flanges are tightly fixed. When disassembling, pull pawl 12 upward to disengage it from ratchet 8 and release the limit on ratchet 8. At this time, flange 1 can be lifted directly. Rack 5 remains stationary with flange 2 while gear 7 rotates clockwise, realizing the rapid separation of flange 1 and flange 2. During the process, stabilizer 15 passes through the two flanges to provide radial positioning.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A quick-release flange, comprising a first flange (1) and a second flange (2) located below the first flange (1), characterized in that, Both ends of the upper surfaces of flange 1 (1) and flange 2 (2) are provided with docking mechanisms (3). The docking mechanism (3) includes a docking frame (4). A rack (5) is slidably connected to the inner right side surface of the docking frame (4) in the up-down direction. A rotating rod (6) is rotatably connected to the side surface of the docking frame (4) away from the center position of flange 1 (1) and flange 2 (2). A gear (7) is fixed to one end of the rotating rod (6) inside the docking frame (4), and a ratchet (8) is fixed to the other end of the rotating rod (6) outside the docking frame (4). A positioning element (9) is provided on the side surface of the docking frame (4) away from the center position of flange 1 (1) and flange 2 (2) and above the rotating rod (6).

2. A quick-release flange according to claim 1, characterized in that, The positioning component (9) includes a spring (10), and the upper and lower ends of the spring (10) are respectively fixed with a positioning block (11) and a pawl (12). The end of the pawl (12) away from the rotating rod (6) is rotatably connected to a positioning rod (13).

3. A quick-release flange according to claim 1, characterized in that, The upper surface of the flange 2 (2) is provided with stabilizing mechanisms (14) at both the left and right ends. The stabilizing mechanism (14) includes a stabilizing rod (15), and a screw (16) is fixedly connected to the lower end of the stabilizing rod (15).

4. A quick-release flange according to claim 1, characterized in that, The lower end of the docking frame (4) is fixed to the upper surface of flange one (1), the lower end of the rack (5) is fixed to the upper surface of flange two (2), and the rack (5) moves through flange one (1) and flange two (2), and the rack (5) is meshed with the gear (7).

5. A quick-release flange according to claim 2, characterized in that, The pawl (12) is movably attached to the ratchet (8), and the positioning block (11) and the positioning rod (13) are both fixed to the side surface of the docking frame (4) away from the center position of flange one (1) and flange two (2).

6. A quick-release flange according to claim 3, characterized in that, The stabilizer bar (15) moves through flange one (1) and flange two (2). The diameter of the stabilizer bar (15) is larger than the diameter of the screw (16). The screw (16) is threaded into the interior of the upper surface of flange two (2).

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