Multi-angle connecting flange

Abstract

The utility model is suitable for the field of connecting flanges, and provides a multi-angle connecting flange which comprises connecting discs located at the end positions and used for being connected with a pipeline and a flexible flange channel connected between the connecting discs. An angle limiting structure is arranged between the connecting discs and comprises at least one flexible tensioning piece, the end of the flexible tensioning piece is fixed between the two limited connecting discs, and the number of the flexible tensioning piece is at least one. The flexible tensioning piece is arranged on the outer wall of the flexible flange channel, and a gap exists between the flexible tensioning piece and the outer wall of the flexible flange channel, so that the maximum bending degree of the axis of the flexible flange channel is limited through the flexible tensioning piece, the auxiliary supporting effect is achieved, and the situation that the outer wall of the flexible flange channel is pulled apart due to too large tension is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of connecting flange, especially to a multi-angle connecting flange. BACKGROUND

[0002] Connecting flange is a disc-shaped part for connecting pipes, pipe fittings or equipment, with sealing function. It connects two flanges tightly together through bolts, commonly used in chemical industry, petrochemical industry and other industries.

[0003] And the existing flange in order to realize the angle of pipe fittings, length of supply problem, has no longer rigid connection, namely in the realization of pipe connection on the basis of the development of flexible connection, for example, can carry out multi-angle connection flexible flange, its two connecting ends are metal connecting disc, and the connecting disc is connected by flexible material.

[0004] However, the existing flexible flange, although relying on its flexibility, optimizes the versatility when connecting, but the supporting strength is reduced a lot, for example, in some occasions, such as the connected pipeline is impacted, resulting in the increase of the connection angle, which will be damaged after breaking the tensile limit of flexible material.

[0005] In summary, the prior art has obvious inconvenience and defects in actual use, so it is necessary to improve. CONTENT OF THE UTILITY MODEL

[0006] In view of the above-mentioned defects, the utility model aims at providing a multi-angle connecting flange, which can limit the maximum bending degree of the flexible flange passage axis by the flexible tensioning piece, play the effect of auxiliary support, avoid the outer wall of the flexible flange passage being torn off due to excessive tension.

[0007] In order to realize the above-mentioned purpose, the utility model provides a multi-angle connecting flange, which comprises connecting disc for connecting with pipe at end position and flexible flange passage connecting between connecting disc; angle limiting structure is arranged between the connecting disc, which comprises flexible tensioning piece fixed between the two connecting discs to be limited, the flexible tensioning piece is provided with at least one; there is gap between the flexible tensioning piece and the outer wall of the flexible flange passage.

[0008] According to the multi-angle connecting flange of the utility model, the flexible flange passage is rubber pipe or metal threaded pipe.

[0009] According to the multi-angle connecting flange of the utility model, the flexible tensioning piece is provided with multiple, and is annularly arranged around the flexible flange passage.

[0010] The utility model discloses a multi -angle connecting flange, flexible tensioning spare end is installed to the connecting disc through the fixed part, the disc surface of connecting disc is provided with the through -hole or cooperation card slot for the flexible tensioning spare passing.

[0011] The utility model discloses a multi -angle connecting flange, the fixed part is the compression bolt of screwing in the disc surface of connecting disc, and the end of flexible tensioning spare is fixedly connected with the eye -ring, when installing, the eye -ring is sleeved on the bolt body of compression bolt, and the compression bolt is screwed to fixed flexible tensioning spare.

[0012] The utility model discloses a multi -angle connecting flange, the fixed part includes coaxial screwing's first cooperation cover and second cooperation cover,

[0013] The first cooperation cover ring is equipped with a plurality of elastic pressure pieces that are pressed towards the first cooperation cover axis, and the second cooperation cover is provided with a protrusion that presses the elastic pressure pieces behind the first cooperation cover and the second cooperation cover.

[0014] The utility model provides a kind of multi -angle connecting flange, including the connecting disc for being used to connect with pipeline in end position and the flexible flange passage between connecting disc (the flexible flange passage is rubber tube or metal screw pipe);A plurality of bolt holes are annularly provided on connecting disc, and when being connected with pipeline, the connecting disc of flange is corresponded with the connecting disc of pipeline and is further fastened by bolt.The angle limiting structure (generally angle limiting structure is set between two connecting discs) is set between connecting disc, it includes flexible tensioning spare (the flexible tensioning spare can be flexible cable or chain) being fixed in the two connecting discs between being limited, and the flexible tensioning spare is provided with at least one;The flexible tensioning spare is mainly set on the side of flexible flange passage being stretched (at this time, the axis of flexible flange passage is curved), and there is gap between the outer wall of flexible flange passage.In normal state, such as the axis of flexible flange passage is straight state, flexible tensioning spare is in curved state, and along with the axis of flexible flange passage bending away from flexible tensioning spare, flexible tensioning spare is gradually stretched.The maximum bending degree of limiting flexible flange passage axis is played to the effect of auxiliary support by flexible tensioning spare, and it is avoided that the outer wall of flexible flange passage is torn off due to excessive tension. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the utility model;

[0016] Figure 2 It is the working schematic diagram of the utility model;

[0017] Figure 3 It is the structure schematic diagram of the first cooperation cover of the utility model;

[0018] Figure 4is a structural schematic view of the second fitting sleeve of the utility model;

[0019] In the drawing, 1 is a connecting disc, 2 is a flexible flange channel, 3 is a flexible tensioning piece, 31 is a matching clamping groove, 4 is a fixing piece, 5 is a first fitting sleeve, 6 is a second fitting sleeve, 51 is an elastic pressing piece, and 52 is a protruding block. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further described in detail below by combining with the drawings and examples, and it should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the utility model.

[0021] Referring to Figure 1 and Figure 2 The utility model provides a multi-angle connecting flange, which comprises connecting discs 1 at end positions for connecting with pipes and flexible flange channels 2 (the flexible flange channels 2 are rubber pipes or metal threaded pipes) connecting the connecting discs 1; a plurality of bolt holes are arranged in a ring on the connecting disc 1, when connecting with the pipe, the connecting disc 1 of the flange is sleeved with the connecting disc 1 of the pipe and is further fastened by bolts (the connection between the connecting disc 1 and the end of the pipe is the existing connection mode, which is only briefly described here).

[0022] Angle limiting structures (generally, the angle limiting structures are arranged between every two connecting discs 1) are arranged between the connecting discs 1, and the angle limiting structures comprise flexible tensioning pieces 3 (the flexible tensioning pieces can be flexible cables or chains) fixed between the two connecting discs 1 to be limited, and the flexible tensioning piece 3 is provided with at least one;

[0023] The flexible tensioning piece 3 is mainly arranged on the side where the flexible flange channel 2 is stretched (at this time, the axis of the flexible flange channel 2 is curved), and a gap exists between the flexible tensioning piece 3 and the outer wall of the flexible flange channel 2. Under normal circumstances, when the axis of the flexible flange channel 2 is in a straight line state, the flexible tensioning piece 3 is in a curved state, and as the axis of the flexible flange channel 2 bends away from the flexible tensioning piece 3, the flexible tensioning piece 3 is gradually stretched. Further explanation is that the flexible tensioning piece 3 can represent the maximum connection angle between the connecting discs 1 (or the maximum limit stretching of the flexible flange channel 2), the flexible tensioning piece 3 has a supporting and protecting effect, avoiding that the axis of the flexible flange channel 2 is excessively bent and causing the outer wall of the flexible flange channel 2 to be torn.

[0024] Of course, the flexible tensioning piece 3 of the utility model is provided with a plurality of flexible tensioning pieces, and the flexible tensioning pieces are arranged in a ring around the flexible flange channel 2.

[0025] In addition, the flexible tensioning member 3 is installed at the end of the connecting disc 1 through the fixing member 4; wherein the fixing member 4 can be a buckle type component (such as a pin buckle, a buckle, etc.), or the fixing member 4 is a compression bolt screwed on the disc surface of the connecting disc 1; the end of the flexible tensioning member 3 is fixedly connected with a sleeve ring;

[0026] During installation, the sleeve ring is sleeved on the shank body of the compression bolt, and the compression bolt is screwed to fix the flexible tensioning member 3.

[0027] Referring to Figure 3 and Figure 4 , or, as shown in the embodiment, the fixing member 4 comprises coaxially screwed first and second matching sleeves 5 and 6; the end of the flexible tensioning member 3 passes through the space between the first and second matching sleeves 5 and 6;

[0028] The first matching sleeve 5 is annularly provided with a plurality of elastic pressing pieces 51 which are pressed towards the axis of the first matching sleeve 5; the second matching sleeve 6 is provided with a protrusion 52 which presses the elastic pressing pieces 51 behind the first and second matching sleeves 5 and 6. Through the above structure, the tension of the flexible tensioning member 3 (i.e. the distance difference between the length of the flexible tensioning member 3 and the axis length of the flexible flange channel 2 when the axis of the flexible flange channel 2 is in a straight line state) can be conveniently adjusted. During adjustment, the first and second matching sleeves 5 and 6 are loosened (the distance between the axes of the first and second matching sleeves 5 and 6 is increased), the protrusion 52 cancels the pressing of the elastic pressing pieces 51, the elastic pressing pieces 51 further cancel the pressing of the flexible tensioning member 3, and the flexible tensioning member 3 can move in the first and second matching sleeves 5 and 6.

[0029] After adjustment, the first and second matching sleeves 5 and 6 can be screwed

[0030] The disc surface of the connecting disc 1 is provided with a through hole or a matching clamping groove 31 through which the flexible tensioning member 3 passes, and in the embodiment, the disc surface of the connecting disc 1 is provided with a matching clamping groove 31 with a side opening. Through the structure, the flexible tensioning member 3 can be conveniently disassembled, and during disassembly, only the fixing member 4 needs to cancel the fixation, and the flexible tensioning member 3 can be taken out from the side opening.

[0031] In summary, the utility model provides a kind of multi-angle connecting flange, including the connecting disc for being connected with pipeline in end position and the flexible flange passage (the flexible flange passage is rubber pipe or metal threaded pipe) between the connecting disc, a plurality of bolt holes are arranged on connecting disc, when being connected with pipeline, the connecting disc of flange is corresponded with the connecting disc of sleeve pipeline, and further fastened by bolt.The angle limiting structure (generally, angle limiting structure is arranged between two connecting discs) is arranged between the connecting disc, it includes flexible tensioning member (the flexible tensioning member can be flexible cable or chain) fixed between the two connecting discs of being limited, and the flexible tensioning member is provided with at least one;The flexible tensioning member is mainly arranged in the side of flexible flange passage being stretched (the axis of flexible flange passage is curved at this time), and there is gap between the outer wall of flexible flange passage.In normal state, such as the axis of flexible flange passage is straight state, flexible tensioning member is curved state, and with the axis of flexible flange passage bending towards the direction away from flexible tensioning member, flexible tensioning member is gradually stretched.The utility model limits the maximum bending degree of the axis of flexible flange passage by flexible tensioning member, plays the effect of auxiliary support, avoids that the outer wall of flexible flange passage is torn off due to excessive tension.

[0032] Of course, the utility model can also have other various embodiments, without departing from the spirit and essence of the utility model, those skilled in the art can make various corresponding changes and deformation according to the utility model, but these corresponding changes and deformation should all belong to the protection scope of the claims attached to the utility model.

Claims

1. A multi-angle connecting flange, characterized in that, The connecting disc is arranged at the end position for connecting with the pipeline, and the flexible flange channel is arranged between the connecting discs; The angle limiting structure is arranged between the connecting discs, which comprises a flexible tensioning member fixed between the two connecting discs; The flexible tensioning member is provided with at least one gap between the outer wall of the flexible flange channel.

2. The multi-angle connecting flange according to claim 1, characterized in that The flexible flange channel is a rubber tube or a metal threaded tube.

3. The multi-angle connecting flange of claim 1, wherein, The flexible tensioning member is provided with a plurality of members and is arranged around the periphery of the flexible flange channel.

4. The multi-angle connecting flange of claim 1, wherein, The end of the flexible tensioning member is installed on the connecting disc through a fixing member; The disc surface of the connecting disc is provided with a through hole or a matching clamping groove for the flexible tensioning member to pass through.

5. The multi-angle connecting flange of claim 4, wherein, The fixing member is a compression bolt screwed on the disc surface of the connecting disc; the end of the flexible tensioning member is fixedly connected with a sleeve ring; During installation, the sleeve ring is sleeved on the bolt body of the compression bolt, and the compression bolt is tightened to fix the flexible tensioning member.

6. The multi-angle connecting flange of claim 4, wherein, The fixing member comprises a coaxially screwed first matching sleeve and a second matching sleeve; The first matching sleeve is annularly provided with a plurality of elastic pressing pieces which are pressed and the ends thereof are close to the first matching sleeve axis; the second matching sleeve is provided with a protrusion which presses the elastic pressing pieces behind the first matching sleeve and the second matching sleeve.

Images