Flange connection quick-release and quick-assembly structure

Abstract

The utility model relates to a flange connection quick-release quick-assembly structure which comprises a bolt, a gasket, an eccentric cylinder, a pressing plate and a nut, the rod portion of the bolt is sequentially provided with the gasket, the eccentric cylinder, the pressing plate and the nut in a penetrating mode from top to bottom, the eccentric cylinder is provided with internal threads matched with the bolt, the bolt is provided with a vertical groove, and the pressing plate and the eccentric cylinder are of an eccentric structure. A protruding block matched with the groove is arranged on the through hole of the pressing plate, and the height of the eccentric cylinder is smaller than the thickness of the two flanges. The flange connection quick-release quick-assembly structure realizes simple, convenient and quick connection and disassembly of the flange.

Description

Technical Field

[0001] The utility model relates to the technical field of flange connection, in particular to a flange connection quick-disassembly and quick-assembly structure. Background Art

[0002] When connecting flanges, you generally need to reach under the flange to press the nut, and then tighten the bolt on it. The connection process is cumbersome. For flanges in the well, you need to reach under the flange in the well when connecting or disassembling, which is more laborious and slow, and is not conducive to quick connection and disassembly. Utility Model Content

[0003] The utility model aims to design a flange connection quick-disassembly and quick-assembly structure, which can realize simple and quick connection and disassembly of flanges.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A flange connection quick-disconnect and quick-install structure includes a bolt, a gasket, an eccentric cylinder, a pressure plate and a nut. The rod of the bolt is sequentially penetrated by the gasket, the eccentric cylinder, the pressure plate and the nut from top to bottom. The eccentric cylinder is provided with an internal thread that cooperates with the bolt. The bolt is provided with a vertical groove. The pressure plate and the eccentric cylinder are eccentric structures. The through hole of the pressure plate is provided with a protrusion that cooperates with the groove. The height of the eccentric cylinder is less than the thickness of the two flanges.

[0006] Furthermore, in the above-mentioned flange connection quick-disconnect and quick-install structure, the head of the bolt is provided with a rotating rod.

[0007] Furthermore, in the above-mentioned flange connection quick-disconnect and quick-install structure, the head of the bolt is rotatably connected to a rotating handle, the bottom of the rotating handle is cylindrical, the head of the bolt is located at an eccentric position of the cylinder, a clamping block is provided between the rotating handle and the gasket, the upper end of the clamping block is provided with a concave arc, and the clamping block is passed through the rod of the bolt.

[0008] Furthermore, in the above-mentioned flange connection quick-disconnect and quick-install structure, the outer edges of the eccentric cylinder and the pressure plate have the same shape and size.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a flange connection quick-release and quick-assembly structure, which includes a gasket, an eccentric cylinder, a pressure plate and a nut mounted on the bolt rod, and then the bottom of the flange connection quick-release and quick-assembly structure is passed through the through holes of the two flanges aligned until the gasket is against the upper edge of the upper flange, and then the bolt head is rotated in the transverse plane, so that the rod of the bolt also rotates, and the pressure plate connected to the bolt through the protrusion and the groove is rotated, so that the pressure plate is stuck at the lower edge of the lower flange, so that the two flanges are stuck between the gasket and the pressure plate. If the pressure plate cannot be just stuck at the lower edge of the lower flange, the pressure plate is turned back and the flange connection quick-release and quick-assembly structure is pulled out, the position of the nut on the bolt is adjusted, the positioning of the pressure plate is changed, and then the above operation is reinserted into the flange through hole and the above operation is repeated until the pressure plate is stuck at the lower edge of the lower flange, thereby realizing quick connection of the flange. When disassembly is required, the reverse operation is sufficient. The flange connection quick-disassembly and quick-assembly structure does not require reaching under the flange to press against the nut and then tightening the bolt on it to achieve the connection. It only requires turning the bolt to rotate the pressure plate and clamp it on the lower edge of the lower flange, thereby achieving simple and quick connection and disassembly of the flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 This is a schematic diagram of the structure of the utility model after the components are installed;

[0012] Figure 2 It is a cross-sectional view of the utility model;

[0013] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0014] The names of the components in the figure are as follows:

[0015] 1. Turning handle; 2. Bolt; 21. Groove; 3. Block; 4. Gasket; 5. Eccentric cylinder; 6. Pressure plate; 61. Protrusion; 7. Nut. DETAILED DESCRIPTION

[0016] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0017] Example: Please refer to Figure 1-3 , a flange connection quick-disconnect and quick-install structure, comprising a bolt 2, a gasket 4, an eccentric cylinder 5, a pressure plate 6 and a nut 7. The rod of the bolt 2 is penetrated by the gasket 4, the eccentric cylinder 5, the pressure plate 6 and the nut 7 in sequence from top to bottom. Penetration means that the gasket 4, the eccentric cylinder 5, the pressure plate 6 and the nut 7 are passed through by the rod of the bolt 2 and are sleeved on the rod of the bolt 2. Among the gasket 4, the eccentric cylinder 5, the pressure plate 6 and the nut 7, the through hole through which the rod of the bolt 2 passes through the eccentric cylinder 5 and the nut 7 is provided with an internal thread that cooperates with the bolt 2. A vertical groove 21 is provided on the bolt 2, and a protrusion 61 that cooperates with the groove 21 is provided on the through hole through which the rod of the bolt 2 passes through the pressure plate 6. When the bolt 2 rotates, the pressure plate 6 will rotate with the bolt 2. The eccentric cylinder 5 and the pressure plate 6 are cylindrical. In this embodiment, the outer edges of the eccentric cylinder 5 and the pressure plate 6 have the same shape and size. The pressure plate 6 and the eccentric cylinder 5 are eccentric structures, that is, the through holes of the pressure plate 6 and the eccentric cylinder 5 through which the rod of the bolt 2 passes are not located at the center of the circle. The eccentric structure of the eccentric cylinder 5 allows the bolt 2 to be screwed in and out of the eccentric cylinder 5 when the eccentric cylinder 5 is located in the flange through-hole. The eccentric structure of the pressure plate 6 allows the pressure plate 6 to have sufficient length to contact and get stuck with the bottom edge of the flange after rotation. The height of the eccentric cylinder 5 is less than the thickness of the two flanges. The nut 7 is used to adjust the stroke position of the pressure plate 6. The adjustment method is to manually rotate the nut 7 to move it up and down on the bolt 2. The pressure plate 6 is connected to the bolt 2 by sliding through the cooperation of the protrusion 61 and the groove 21. The nut 7 is located below the pressure plate 6 to position the pressure plate 6.

[0018] The head of the bolt 2 may be provided with a rotating rod to facilitate the rotation of the bolt 2 .

[0019] like Figure 1-3 As shown, in this embodiment, the rod-shaped head of the bolt 2 is rotatably connected to the rotating handle 1, which includes a sheet-shaped handle and a cylindrical bottom. The rod-shaped head of the bolt 2 is located at an eccentric position of the cylinder. A clamping block 3 is provided between the rotating handle 1 and the gasket 4. The clamping block 3 is cylindrical and has a concave arc at its upper end. The clamping block 3 is passed through the rod portion of the bolt 2. When the rotating handle 1 is rotated so that the line connecting the center of the cylindrical bottom and the center of the rod-shaped head of the bolt 2 is vertical, the rod-shaped head of the bolt 2 can be freely rotated for tightening and loosening. When the connection is tilted and the gasket 4 is pressed against the flange, the rod-shaped head of the bolt 2 is pulled upward and cannot be freely rotated, thereby achieving fixation.

[0020] The rod of the bolt 2 passes through the center position of the block 3, the washer 4, and the nut 7, and passes through the eccentric position of the eccentric cylinder 5 and the pressure plate 6.

[0021] Working principle of this embodiment: This embodiment provides a flange connection quick-release and quick-install structure, which includes a clamping block 3, a gasket 4, an eccentric cylinder 5, a pressure plate 6 and a nut 7, which are placed on the rod of the bolt 2. The bottom of the flange connection quick-release and quick-install structure is then passed through the through holes aligned with the two flanges until the gasket 4 abuts against the upper edge of the upper flange. The handle 1 is then rotated in the transverse plane, so that the rod of the bolt 2 also rotates, and the pressure plate 6 connected to the bolt 2 through the protrusion 61 and the groove 21 rotates, so that the pressure plate 6 is stuck on the lower edge of the lower flange, so that the two flanges are stuck between the gasket 4 and the pressure plate. If the pressure plate 6 cannot be rotated to just get stuck on the lower edge of the lower flange, turn the pressure plate 6 back and then pull out the flange connection quick-release and quick-install structure, adjust the position of the nut 7 on the bolt 2, change the positioning of the pressure plate 6, and then reinsert it into the flange through hole and repeat the above operation until the pressure plate 6 is stuck on the lower edge of the lower flange, and then rotate the handle 1 in the vertical plane to tilt the line connecting the center of the cylindrical bottom circle and the center of the rod-shaped head of the bolt 2, fix the rod-shaped head of the bolt 2, and realize the quick connection of the flange. When disassembly is required, reverse the above steps. The flange connection quick-release and quick-install structure does not need to extend under the flange to press the nut 7 and then tighten the bolt 2 on it to achieve connection. It only needs to rotate the bolt 2 to rotate the pressure plate 6 to get stuck on the lower edge of the lower flange, realizing simple and quick connection and disassembly of the flange.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "upper," "lower," "left," "right," "front," "rear," and similar expressions used herein are for illustrative purposes only.

[0023] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A flange connection quick-disassembly and quick-assembly structure, characterized by: The invention comprises a bolt (2), a gasket (4), an eccentric cylinder (5), a pressure plate (6) and a nut (7); the rod of the bolt (2) is provided with the gasket (4), the eccentric cylinder (5), the pressure plate (6) and the nut (7) in sequence from top to bottom; the eccentric cylinder (5) is provided with an internal thread matching with the bolt (2); the bolt (2) is provided with a vertical groove (21); the pressure plate (6) and the eccentric cylinder (5) are eccentric structures; the through hole of the pressure plate (6) is provided with a protrusion (61) matching with the groove (21); the height of the eccentric cylinder (5) is less than the thickness of the two flanges.

2. The flange connection quick-disassembly and quick-assembly structure according to claim 1, characterized in that: The head of the bolt (2) is provided with a rotating rod.

3. The flange connection quick-disassembly and quick-assembly structure according to claim 1, characterized in that: The head of the bolt (2) is rotatably connected to a rotating handle (1); the bottom of the rotating handle (1) is cylindrical; the head of the bolt (2) is located at an eccentric position of the cylindrical shape; a clamping block (3) is provided between the rotating handle (1) and the gasket (4); a concave arc is provided at the upper end of the clamping block (3); and the clamping block (3) is passed through the rod of the bolt (2).

4. The flange connection quick-disassembly and quick-assembly structure according to claim 1, characterized in that: The outer edges of the eccentric cylinder (5) and the pressing plate (6) have the same shape and size.

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