A quick-release fitting for pipe flanges

Abstract

This utility model discloses a quick-release assembly for pipeline flanges, applicable to the field of mechanical auxiliary tools. Through the coordinated arrangement of an mounting ring, a transmission mechanism, and multiple fastening components, the transmission mechanism enables multiple telescopic parts to extend and retract synchronously, thereby causing the corresponding fastening parts to move synchronously closer to or further away from the flange. This allows two fastening wedges in the fastening parts to clamp or loosen the two flanges, achieving quick assembly and disassembly between them. Compared to sequentially tightening or loosening multiple bolts surrounding the flange, this quick-release assembly is much more convenient to operate. By integrating a limiting slider on the fastening wedge and allowing it to slide along the axial direction of the mounting ring inside the mounting base, combined with a bidirectional threaded rod, the distance between the two fastening wedges can be adjusted by rotating the bidirectional threaded rod, accommodating flanges of different thicknesses and making the quick-release assembly more versatile.

Description

Technical Field

[0001] This utility model relates to the field of mechanical auxiliary tools, and in particular to a quick-release assembly for pipeline flanges. Background Technology

[0002] Flange connections are widely used due to their high strength and good sealing performance. A flange connection involves fixing two pipes, fittings, or equipment to a flange plate, placing a gasket between the two flange plates, and then typically connecting them with bolts to complete the connection.

[0003] In practical use, specialized disassembly and assembly tools are generally required to facilitate the assembly and disassembly of flanges. For example, patent publication number CN211761258U discloses an auxiliary tool for disassembling and installing flange-connected pipelines. This tool includes two parallel threaded rods connected at the middle by a connector. The two ends of the connector are rotatably fitted onto the middle of the two threaded rods via connecting sleeves. The upper and lower sections of the threaded rods are both threaded with opposite directions of rotation. Each section is threaded with a top block. The inner end face of the top block is arc-shaped, and a horizontally protruding inward-facing fitting plate is located in the center of the inner end face. Vertically protruding positioning blocks are located on the upper and lower sides of the inner end of the fitting plate. This allows for efficient assembly and disassembly of flange-connected pipelines and reduces the labor intensity during the process.

[0004] Based on the above search and combined with existing technology, it was found that existing quick-release structures for flanges similar to those disclosed above still require the multiple bolts surrounding the flange to be tightened or loosened sequentially for fixation or disassembly, which is quite cumbersome. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The core of this invention lies in solving the problem of the cumbersome operation of sequentially tightening or loosening multiple bolts surrounding the flange in existing technologies, which requires the coordinated arrangement of a transmission mechanism, a telescopic part, and a fastening wedge. This also makes the quick-assembly component more versatile.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A quick-release assembly for a pipe flange includes a mounting ring fitted around the outside of the flange. The mounting ring has multiple fastening components arranged in a circular array. The mounting ring also has a transmission mechanism connected to the multiple fastening components, which causes the multiple fastening components to move synchronously closer to or further away from the flange.

[0010] The fastening assembly includes a telescopic part and a fastening part, and the fastening part is connected to the transmission mechanism through the telescopic part;

[0011] The fastening part includes a mounting base and two fastening wedges. The mounting base is connected to the telescopic part, and the two fastening wedges are arranged sequentially along the axial direction of the mounting ring and connected to the end face of the mounting base away from the telescopic part.

[0012] By using the transmission mechanism, telescopic part, and fastening wedge, the telescopic part can be extended and retracted by the transmission mechanism, thereby allowing the fastening wedge to loosen or clamp the two flanges, enabling quick assembly and disassembly of the flanges.

[0013] Furthermore, the telescopic part includes a limiting sleeve, a limiting post, and a transmission rod;

[0014] The limiting square sleeve is fixed to the inner wall of the mounting ring along the radial direction of the mounting ring, and the limiting square post is slidably sleeved on the inner side of the limiting square sleeve. The end of the limiting square post near the axis of the mounting ring is fixed to the mounting seat.

[0015] The transmission rod is rotatably mounted on the mounting ring and threaded through the limiting square post. The end of the transmission rod away from the axis of the mounting ring is connected to the transmission mechanism.

[0016] Furthermore, the transmission mechanism includes a large bevel gear and multiple small bevel gears. The large bevel gear is coaxially rotated and sleeved on the outside of the mounting ring. The multiple small bevel gears are coaxially fixed with multiple transmission rods, and all of the multiple small bevel gears mesh with the large bevel gear.

[0017] Furthermore, a protective cover is fixed to the outside of the mounting ring. The protective cover is located on the outside of the transmission mechanism, and the protective cover is provided with multiple pre-dismantled holes for disassembly and assembly. The multiple pre-dismantled holes for disassembly and assembly are coaxially corresponding to multiple small bevel gears.

[0018] Furthermore, a limit slider is integrally provided on the fastening wedge block. The limit slider is slidably installed on the inner side of the mounting base along the axial direction of the mounting ring. A bidirectional threaded rod is rotatably installed on the mounting base along the axial direction of the mounting ring, and the bidirectional threaded rod is threaded through the two limit sliders. An adjustment pre-drilled hole corresponding to the bidirectional threaded rod is provided on the side end of the mounting base.

[0019] Furthermore, the edges of the two flanges that are far apart from each other are provided with chamfers that are adapted to the fastening wedges.

[0020] 3. Beneficial Effects

[0021] Compared with existing technologies, the advantages of this utility model are:

[0022] (1) This solution, through the coordinated arrangement of the mounting ring, transmission mechanism, telescopic part and fastening wedge, can use the transmission mechanism to make the telescopic part extend and retract, thereby making the fastening wedge loosen or clamp the two flanges, thus realizing the quick assembly and disassembly of the flanges.

[0023] (2) This solution uses a bidirectional threaded rod to adjust the distance between the two fastening wedges by rotating the bidirectional threaded rod, which can adapt to flanges of different thicknesses, making the quick-assembly component more versatile. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention in its installed state;

[0025] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the concealed protective shell of this utility model.

[0027] Figure 4 This is a partial cross-sectional structural diagram of the concealed protective shell state of this utility model;

[0028] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0029] Explanation of the labels in the diagram:

[0030] 1. Mounting ring; 2. Fastening assembly; 21. Telescopic part; 211. Limiting square sleeve; 212. Limiting square post; 213. Transmission rod; 22. Fastening part; 2201. Adjustment reserved countersunk hole; 221. Mounting seat; 222. Fastening wedge; 223. Limiting slider; 224. Bidirectional threaded rod; 3. Protective cover; 301. Disassembly reserved countersunk hole; 4. Flange; 5. Piping; 6. Small bevel gear; 7. Large bevel gear. Detailed Implementation

[0031] The technical solution will now be clearly and completely described with reference to the accompanying drawings in the embodiments of this utility model.

[0032] Example 1:

[0033] Please see Figures 1-5 A quick-release assembly for a pipeline flange includes a mounting ring 1, which is fitted onto the outside of a flange 4. Multiple fastening components 2 are arranged in a circular array on the mounting ring 1. A transmission mechanism is provided on the mounting ring 1 to connect with the multiple fastening components 2. The transmission mechanism causes the multiple fastening components 2 to move closer to or further away from the flange 4 synchronously.

[0034] Specifically, the fastening assembly 2 includes a telescopic part 21 and a fastening part 22, and the fastening part 22 is connected to the transmission mechanism through the telescopic part 21.

[0035] The fastening part 22 includes a mounting base 221 and two fastening wedges 222. The mounting base 221 is connected to the telescopic part 21. The two fastening wedges 222 are arranged sequentially along the axial direction of the mounting ring 1 and connected to the end face of the mounting base 221 away from the telescopic part 21. The end faces of the two fastening wedges 222 that are close to each other are both set as bevels. The edges of the end faces of the two flanges 4 that are far from each other are provided with chamfers that match the bevels of the fastening wedges 222.

[0036] Based on the above-mentioned transmission mechanism, telescopic part 21 and fastening wedge 222, the telescopic part 21 can be extended and retracted by the transmission mechanism, thereby causing the fastening wedge 222 to clamp or loosen the two flanges 4, realizing the quick assembly and disassembly of the flanges 4.

[0037] Among them, such as Figure 5 As shown, the telescopic part 21 includes a limiting sleeve 211, a limiting post 212, and a transmission rod 213. The limiting sleeve 211 is fixed to the inner wall of the mounting ring 1 along the radial direction of the mounting ring 1. The limiting post 212 is slidably sleeved on the inner side of the limiting sleeve 211. The end of the limiting post 212 near the axis of the mounting ring 1 is fixed to the mounting seat 221. The transmission rod 213 is rotatably mounted on the mounting ring 1 and threaded through the limiting post 212. The end of the transmission rod 213 away from the axis of the mounting ring 1 is connected to the transmission mechanism.

[0038] Regarding the transmission mechanism, specifically, such as Figure 3 and Figure 4 As shown, the transmission mechanism includes a large bevel gear 7 and multiple small bevel gears 6. The large bevel gear 7 is coaxially rotated and sleeved on the outside of the mounting ring 1. The multiple small bevel gears 6 are coaxially fixed with multiple transmission rods 213 one by one, and all the small bevel gears 6 mesh with the large bevel gear 7. During disassembly and assembly, it is only necessary to use a screwdriver to rotate one of the small bevel gears 6. The bevel gear 6 drives the other small bevel gears 6 to rotate synchronously through the large bevel gear 7, thereby realizing the synchronous operation of multiple fastening components 2.

[0039] Among them, a protective cover 3 is fixed on the outside of the mounting ring 1. The protective cover 3 is placed on the outside of the transmission mechanism and can protect the small bevel gear 6 and the large bevel gear 7.

[0040] Example 2:

[0041] The fastening wedge 222 is integrally provided with a limiting slider 223. The limiting slider 223 is slidably installed on the inner side of the mounting base 221 along the axial direction of the mounting ring 1. A sliding groove is provided in the mounting base 221 to limit the sliding of the limiting slider 223. A bidirectional threaded rod 224 is rotatably installed on the mounting base 221 along the axial direction of the mounting ring 1. Two opposite threaded sections are symmetrically arranged on the bidirectional threaded rod 224. The two limiting sliders 223 are respectively symmetrically threaded onto the outer side of the two threaded sections. The distance between the two fastening wedges 222 can be adjusted by rotating the bidirectional threaded rod 224, which can adapt to flanges 4 of different thicknesses, making the applicability of this quick-release component stronger.

[0042] The protective housing 3 is provided with multiple pre-dismantled countersunk holes 301 for disassembly and assembly, and the multiple pre-dismantled countersunk holes 301 are coaxially corresponding to the multiple small bevel gears 6. The side end of the mounting base 221 is provided with an adjustment pre-dismantled countersunk hole 2201 corresponding to the bidirectional threaded rod 224. The pre-dismantled countersunk holes 301 for disassembly and assembly and the adjustment pre-dismantled countersunk holes 2201 are both provided for screwdrivers to extend into, and the countersunk hole design can effectively prevent accidental contact.

[0043] It should be noted that, in order to facilitate the rotation of the screwdriver along the bidirectional threaded rod 224 and the small bevel gear 6, the axial ends of both the bidirectional threaded rod 224 and the small bevel gear 6 are provided with slots (not shown in the figure) that are compatible with the screwdriver.

[0044] The above description is merely a preferred embodiment of this utility model; it encompasses all the protection scope of this utility model. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be covered within the protection scope of this utility model.

Claims

1. A quick-release assembly for pipe flanges, characterized in that: Includes a mounting ring (1), which is sleeved on the outside of the flange (4). Multiple fastening components (2) are arranged in a ring array on the mounting ring (1). A transmission mechanism connected to the multiple fastening components (2) is provided on the mounting ring (1). The transmission mechanism enables the multiple fastening components (2) to move synchronously closer to or further away from the flange (4). The fastening assembly (2) includes a telescopic part (21) and a fastening part (22), wherein the fastening part (22) is connected to the transmission mechanism through the telescopic part (21); The fastening part (22) includes a mounting base (221) and two fastening wedges (222). The mounting base (221) is connected to the telescopic part (21). The two fastening wedges (222) are arranged sequentially along the axial direction of the mounting ring (1) and connected to the end face of the mounting base (221) away from the telescopic part (21).

2. The quick-release fitting for pipeline flanges according to claim 1, characterized in that: The telescopic part (21) includes a limiting sleeve (211), a limiting post (212), and a transmission rod (213). The limiting sleeve (211) is fixed to the inner wall of the mounting ring (1) along the radial direction of the mounting ring (1), the limiting column (212) is slidably sleeved on the inner side of the limiting sleeve (211), and the end of the limiting column (212) near the axis of the mounting ring (1) is fixed to the mounting seat (221). The transmission rod (213) is rotatably mounted on the mounting ring (1) and threaded through the limiting square post (212). The end of the transmission rod (213) away from the axis of the mounting ring (1) is connected to the transmission mechanism.

3. A quick-release fitting for pipe flanges according to claim 2, characterized in that: The transmission mechanism includes a large bevel gear (7) and a plurality of small bevel gears (6). The large bevel gear (7) is coaxially rotated and sleeved on the outside of the mounting ring (1). The plurality of small bevel gears (6) are coaxially fixed with a plurality of transmission rods (213) one by one, and the plurality of small bevel gears (6) mesh with the large bevel gear (7).

4. A quick-release fitting for pipe flanges according to claim 1, characterized in that: The outer side of the mounting ring (1) is fixed with a protective cover (3). The protective cover (3) is placed on the outside of the transmission mechanism. The protective cover (3) is provided with multiple pre-reserved countersunk holes (301) for disassembly and assembly. The multiple pre-reserved countersunk holes (301) are coaxially corresponding to multiple small bevel gears (6).

5. A quick-release fitting for pipe flanges according to claim 1, characterized in that: The fastening wedge (222) is integrally provided with a limiting slider (223). The limiting slider (223) is slidably installed on the inner side of the mounting base (221) along the axial direction of the mounting ring (1). The mounting base (221) is rotatably installed with a bidirectional threaded rod (224) along the axial direction of the mounting ring (1), and the bidirectional threaded rod (224) is threaded through the two limiting sliders (223). The side end of the mounting base (221) is provided with an adjustment reserved countersunk hole (2201) corresponding to the bidirectional threaded rod (224).

6. A quick-release fitting for pipe flanges according to claim 1, characterized in that: The two flanges (4) have chamfers on their far-away end face edges that are adapted to the fastening wedges (222).

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