CN213576107U

CN213576107U - Clamp type flexible connecting device

Info

Publication number: CN213576107U
Application number: CN202021931269.9U
Authority: CN
Inventors: 蔡国丁; 周海华
Original assignee: Shanghai Guozhiding Railway Electrical Co ltd
Current assignee: Shanghai Guozhiding Railway Electrical Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-06-29
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a clamp type flexible connecting device, which comprises a middle connecting pipe (1), a sealing ring (2), a fixing piece (3) and a pressing ring (5); the middle connecting pipe comprises a connecting section (11) and a reducing section (12) coaxially connected to the two ends of the connecting section, the inner diameter of the free end of the reducing section is larger than the outer diameter of the connected pipe, and a sealing flange (13) which is turned outwards is formed at the edge of the free end of the reducing section; the sealing ring is fixedly sleeved on the outer wall of the connected end of the connected pipe (4), the free end of the reducing section is sleeved outside the connected end of the connected pipe and overlapped for a certain length, the sealing flanging and the pressing ring are matched and attached to the sealing ring, and the fixing piece is of an annular structure and is sleeved outside the sealing ring, the sealing flanging and the pressing ring, so that the sealing flanging is connected with the connected pipe in a sealing mode through the sealing ring. The utility model discloses can realize sealed and the flexonics between two pipelines through sealing washer and intermediate junction pipe, the commonality is strong.

Description

Clamp type flexible connecting device

Technical Field

The utility model relates to a pipe connection equipment especially relates to a clamp formula flexible connection device.

Background

In mobile general mechanical equipment and fixed complete equipment such as an internal combustion engine, a compressor and the like, media such as gas, liquid, particulate matters and mixtures thereof are conveyed through various pipelines, and in the actual pipeline construction process, two pipelines are often required to be connected according to different pipeline arrangements. Because of errors of working procedures such as processing, installation and the like, certain deviation can occur between two pipelines, and the pipeline connecting device is adopted in the prior art to realize pipeline connection and error adjustment.

The traditional pipeline connecting device comprises pipe joints with interfaces at two ends processed into various forms such as various threaded joints or flanges and flexible hoses (such as rubber hoses, metal or rubber corrugated pipes and the like) connected with the pipe joints, wherein the pipe joints are fixed on pipelines through bolts or threads, and then the flexible hoses are connected with the pipe joints to realize the communication of the two pipelines. The pipeline connecting mode in the prior art not only needs to manufacture various connectors which are complex and strictly matched, but also has high manufacturing cost, time-consuming assembly and inconvenient maintenance. In addition, under the influence of factors such as the structure and the material of the middle hose, the reliability difference between the connection node and the whole pipeline structure is large, and particularly, the high-reliability assembly structure has the defect of large reliability when used under the vibration working condition, and can not meet the assembly requirement of high reliability. If a rigid pipe is used instead of the flexible hose, the requirement for the coaxiality of the connection between the two pipes and the rigid pipe is high, and in the case of a deviation in the pipe assembly, the problems of the inability to connect and install the pipes or the poor sealing performance and durability after installation occur.

Disclosure of Invention

An object of the utility model is to provide a clamp formula flexonics device can realize two sealed and the flexonics by between the connecting pipe through sealing washer and intermediate junction, and the commonality is strong.

The utility model discloses a realize like this:

a clamp type flexible connecting device comprises a middle connecting pipe, a sealing ring, a fixing piece and a pressing ring; the middle connecting pipe comprises a connecting section and a reducing section coaxially connected to the two ends of the connecting section, the inner diameter of the free end of the reducing section is larger than the outer diameter of the connected pipe, and a sealing flange which is turned outwards is formed at the edge of the free end of the reducing section; the sealing ring is fixedly sleeved on the outer wall of the connecting end of the connected pipe, the free end of the reducing section is sleeved outside the connecting end of the connected pipe, and the sealing flange is matched and attached to the sealing ring; the pressing ring is matched and attached to the sealing ring, and the fixing piece is of an annular structure and is sleeved outside the sealing ring, the sealing flanging and the pressing ring, so that the sealing flanging is connected with the connected pipe in a sealing mode through the sealing ring.

The end faces of the two sides of the sealing ring are of inclined plane structures, and the angle of the outward turning of the sealing flanging is equivalent to that of the inclined plane structure of the sealing ring, so that the sealing flanging can be matched and attached to the inclined plane structure on one side of the sealing ring.

The section of the pressing ring is of a V-shaped structure and can be matched and attached to the inclined plane structure on the other side of the sealing ring, and the pressing ring is located in the fixing piece and is pressed on the sealing ring through the fixing piece.

The fixing piece comprises a pair of semicircular hoops, one ends of the hoops are rotatably connected through the rotating piece, and the other ends of the hoops are movably connected through the connecting piece, so that the semicircular hoops are clasped to form an annular structure which can encircle the outer portions of the sealing ring, the sealing flanging and the pressing ring.

The inner wall of the hoop is provided with a groove body, so that the sealing ring, the sealing flange and the pressing ring which are attached to the surface of the sealing ring can be embedded in the groove body in a matching mode.

The variable diameter section is of a cylindrical structure with a convex middle part, namely the diameter of the middle part of the variable diameter section is larger than the diameters of the two ends.

The connecting end of the connected pipe extends to the inside of the reducing section.

Compared with the prior art, the utility model, following beneficial effect has:

1. the utility model discloses owing to be equipped with the sealing washer that has trapezoidal inclined plane structure, can ensure the effective laminating of the sealed turn-ups of intermediate junction pipe tip and clamp ring to press from both sides tight reliable sealing connection between realizing intermediate junction pipe and quilt the connecting pipe through the staple bolt, avoided adopting the relatively poor problem of use reliability that the coupling hose intercommunication leads to, and can select the intermediate junction pipe of different materials according to the difference of transport medium, application scope is wide.

2. The utility model discloses owing to be equipped with the sealing washer that has trapezoidal inclined plane structure and the turn-ups's of the sealed turn-ups intermediate junction pipe of formula of turning up, intermediate junction pipe and by can rotate relatively between the connecting pipe to adapt to two assembly angular deviation between by the connecting pipe, also can avoid the assembly difficulty or the sealed not good problem that factors such as machining error lead to, realized by the flexonics between the connecting pipe.

3. The utility model discloses owing to be equipped with the clamping ring and seal the turn-ups, when improving sealing washer sealing performance, make the both sides atress of sealing washer balanced, prevent that the sealing washer from being excessively extruded, prolong the life of sealing washer to the realization is connected reliability and durability by the connecting pipe.

4. The utility model discloses need not to process flange/threaded connection head, greatly reduced manufacturing cost, and assembly and maintenance are more convenient, swift, are difficult for receiving external environment's interference, have good shock resistance, and the commonality is strong, but the wide application in portable general mechanical equipment such as internal-combustion engine, compressor and fixed complete sets be connected by the connecting pipe, and application prospect is wide.

The utility model discloses a sealing washer and intermediate junction have realized two by sealed and the flexonics between the connecting pipe, can solve the problem of the assembly difficulty that pipeline assembly deviation, machining error etc. lead to, and the commonality is strong, but batch production has good economic benefits.

Drawings

FIG. 1 is a cross-sectional view of the clamp type flexible connection device of the present invention;

FIG. 2 is an enlarged view at A of FIG. 1;

FIG. 3 is a cross-sectional view of the middle connection tube of the flexible connection device of the present invention;

FIG. 4 is a cross-sectional view of the seal ring of the flexible connection device of the present invention;

FIG. 5 is a cross-sectional view of a compression ring of the clamp-type flexible connection device of the present invention;

fig. 6 is a perspective view of the fixing member of the clamp type flexible connecting device of the present invention.

In the figure, 1 middle connecting pipe, 11 connecting section, 12 reducing section, 13 sealing flanging, 2 sealing ring, 21 inclined plane structure, 3 fixing piece, 31 hoop, 32 rotating piece, 33 connecting piece, 34 groove body, 4 connected pipe and 5 pressing ring.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Referring to fig. 1 and 2, a clamp-type flexible connection device includes a middle connection tube 1, a sealing ring 2, a fixing member 3, and a pressing ring 5; referring to fig. 3, the intermediate connecting pipe 1 includes a connecting section 11 and a reducing section 12 coaxially connected to two ends of the connecting section 11, the inner diameter of the free end of the reducing section 12 is slightly larger than the outer diameter of the connected pipe 4, and a sealing flange 13 folded outwards is formed at the edge of the free end of the reducing section 12; the sealing ring 2 is fixedly sleeved on the outer wall of the connecting end of the connected pipe 4, the free end of the reducing section 12 is sleeved outside the connecting end of the connected pipe 4, and the sealing flanging 13 is matched and attached to the sealing ring 2; the pressing ring 5 is matched and attached to the sealing ring 2, and the fixing piece 3 is in an annular structure and is sleeved outside the sealing ring 2, the sealing flanging 13 and the pressing ring 5, so that the sealing flanging 13 is in sealing connection with the connected pipe 4 through the sealing ring 2.

Referring to fig. 4, the end surfaces of the two sides of the sealing ring 2 are inclined plane structures 21, and the outward turning angle of the sealing flange 13 is equal to the angle of the inclined plane structure 21 of the sealing ring 2, so that the sealing flange 13 can be matched and attached to the inclined plane structure 21 on one side of the sealing ring 2, and the sealing ring 2 and the sealing flange 13 are pressed and sealed, thereby ensuring the sealing connection between the middle connecting pipe 1 and the connected pipe 4.

Referring to fig. 5, the clamp type flexible connection device further includes a pressing ring 5, the section of the pressing ring 5 is a V-shaped structure and can be attached to the inclined surface structure 21 on the other side of the sealing ring 2, the pressing ring 5 is located in the fixing member 3 and is pressed against the sealing ring 2 through the fixing member 3, so that the fastening effect of the fixing member 3 can be improved, and the sealing ring 2 is prevented from being excessively squeezed.

Referring to fig. 6, the fixing member 3 includes a pair of semi-circular hoops 31, one ends of the pair of hoops 31 are rotatably connected by a rotating member 32 such as a rotating shaft, and the other ends of the pair of hoops 31 are movably connected by a connecting member 33 such as a bolt and a nut, so that the pair of semi-circular hoops 31 are clasped to form an annular structure capable of surrounding the sealing ring 2, the sealing flange 13 and the pressing ring 5, and the sealing connection between the sealing flange 13 and the pressing ring 5 and the sealing ring 2 is ensured.

The inner wall of the hoop 31 is provided with a groove body 34, so that the sealing ring 2, the sealing flange 13 attached to the surface of the sealing ring 2 and the pressing ring 5 can be matched and embedded in the groove body 34, and the loosening of the joint can be effectively prevented.

The reducing section 12 is of a cylindrical structure with a convex middle part, namely the diameter of the middle part of the reducing section 12 is larger than the diameters of two ends, so that smooth medium circulation at the joint between the connecting pipes 4 is ensured, and the reducing section can also adapt to different pipeline shapes and assembly errors caused by procedures such as processing and installation of the connecting pipes 4.

The connecting end of the connected pipe 4 extends to the inside of the reducing section 12, so that the connected pipe 4 and the reducing section 12 are overlapped for a certain length, and the stability of the connecting node is ensured.

Preferably, sealing washer 2 can adopt the rubber material to make, has certain deformability, and can adapt to the assembly angle error between by connecting pipe 4 through the inclined plane structure 21 of both sides, realizes by the deviation assembly of the small angle such as 5 between connecting pipe 4, reaches flexonics's purpose.

The utility model discloses an assembly method is: the end parts of two connected pipes 4 to be connected are all sleeved with a sealing ring 2 made of rubber, a reducing section 12 at one end of the middle connecting pipe 1 is sleeved on one connected pipe 4, a sealing flange 13 of the middle connecting pipe can be attached to one inclined surface structure 21 of the sealing ring 2, a pressing ring 5 is sleeved on the other inclined surface structure 21 of the sealing ring 2, a pair of anchor ears 31 is sleeved on the sealing ring 2, the sealing flange 13 and the pressing ring 5 are outside, the sealing flange 13 and the pressing ring 5 are attached to the two inclined surface structures 21 of the sealing ring 2 through a groove body 34, the pair of anchor ears 31 are locked through connecting pieces 33 such as bolts and nuts, and the middle connecting pipe 1 and the connected pipes 4 are effectively sealed through the sealing ring 2. The other end of the intermediate connection pipe 1 is connected to the connected pipe 4 in the same manner, and will not be described herein.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a clamp formula flexible connection device which characterized by: comprises a middle connecting pipe (1), a sealing ring (2), a fixing piece (3) and a pressing ring (5); the middle connecting pipe (1) comprises a connecting section (11) and reducing sections (12) coaxially connected to two ends of the connecting section (11), the inner diameter of the free end of each reducing section (12) is larger than the outer diameter of the connected pipe (4), and sealing flanges (13) which are turned outwards are formed at the edges of the free ends of the reducing sections (12); the sealing ring (2) is fixedly sleeved on the outer wall of the connecting end of the connected pipe (4), the free end of the reducing section (12) is sleeved outside the connecting end of the connected pipe (4), and the sealing flanging (13) is matched and attached to the sealing ring (2); the pressing ring (5) is matched and attached to the sealing ring (2), the fixing piece (3) is in an annular structure and is sleeved outside the sealing ring (2), the sealing flanging (13) and the pressing ring (5), and the sealing flanging (13) is in sealing connection with the connected pipe (4) through the sealing ring (2).

2. The flexible connection unit of claim 1, wherein: the end faces of two sides of the sealing ring (2) are of inclined plane structures (21), the angle of the outward turning of the sealing flanging (13) is equivalent to the angle of the inclined plane structure (21) of the sealing ring (2), and the sealing flanging (13) can be attached to the inclined plane structure (21) on one side of the sealing ring (2) in a matching mode.

3. The flexible connection unit of claim 1, wherein: the section of the pressing ring (5) is of a V-shaped structure and can be attached to the inclined surface structure (21) on the other side of the sealing ring (2), and the pressing ring (5) is located in the fixing piece (3) and is pressed on the sealing ring (2) through the fixing piece (3).

4. The flexible connection unit of claim 1, wherein: the fixing piece (3) comprises a pair of semicircular hoops (31), one ends of the hoops (31) are rotatably connected through rotating pieces (32), the other ends of the hoops (31) are movably connected through connecting pieces (33), and the semicircular hoops (31) are encircled to form an annular structure which can encircle the outer portions of the sealing ring (2), the sealing flanging (13) and the pressing ring (5).

5. The flexible connection unit of claim 4, wherein: a groove body (34) is formed on the inner wall of the hoop (31), so that the sealing ring (2), the sealing flange (13) attached to the surface of the sealing ring (2) and the pressing ring (5) can be embedded in the groove body (34) in a matching mode.

6. The flexible connection unit of claim 1, wherein: the variable diameter section (12) is of a cylindrical structure with a convex middle part, namely the diameter of the middle part of the variable diameter section (12) is larger than the diameters of the two ends.

7. The flexible connection unit of claim 1, wherein: the connecting end of the connected pipe (4) extends to the inside of the reducing section (12).