Light-weight sheet metal part flexible joint

Abstract

The utility model discloses a light-weight sheet metal part flexible joint which is composed of pipe sleeves, a sleeve, sealing rings and a hoop, the outer side of one end of each pipe sleeve is provided with a sealing ring groove, the other end of each pipe sleeve is provided with a step, the sealing rings are respectively arranged in the sealing ring grooves, the two pipe sleeves are symmetrically arranged, the sleeve is arranged on the outer sides of the two symmetrical sealing rings, and the hoop is arranged on the sleeve. The hoop is of a clamshell type structure and is composed of clamping rings, a first pin shaft, a second pin shaft and a lock catch structure, a hinge hole is formed in one end of each clamping ring, a pin hole is formed in the other end of each clamping ring, the two sides of each clamping ring are in a sawtooth shape and protrude inwards in an annular mode, the two clamping rings are oppositely arranged, one ends of the clamping rings are connected in a hinged mode in the mode that the first pin shafts penetrate through the hinge holes, and the second pin shafts are installed in the pin holes in the other ends. The number of the lock catch structures is three, the lock catch structures are installed on the second pin shaft in a staggered mode so that lock catch connection can be achieved, and the clamping ring is made of plates or strips and can be directly machined and formed through the sheet metal technology. Flexible connection and sealing of the guide pipe are achieved, the weight is reduced, the quick mounting and dismounting function is achieved, and the mounting and using environment is guaranteed.

Description

Technical Field

[0001] This utility model patent belongs to the field of pipeline connectors, and specifically discloses a lightweight sheet metal flexible joint. Background Art

[0002] In the field of large-diameter pipe connectors, the main parts of commonly used flexible joints, the clamping rings, are basically cut and processed, and are obtained by cutting the main parts into two halves after the main body processing is completed. They have the problems of complex processing, low efficiency, large deformation of thin-walled parts and difficult control, and the parts also have the disadvantage of being heavy. Utility Model Content

[0003] The purpose of the utility model is to provide a lightweight, self-locking pipe flexible connection joint with a lock structure, the main parts of which are sheet metal parts, so as to achieve flexible connection and sealing of the conduit, reduce weight, have the function of rapid installation and disassembly, and ensure its installation and use environment.

[0004] The technical solution of the utility model is as follows: A lightweight sheet metal flexible joint consists of a pipe sleeve, a sleeve, a sealing ring, and a clamp. A sealing ring groove is provided on the outer side of one end of the pipe sleeve, and a step is provided on the outer side of the other end. The pipe sleeve is symmetrically provided with two sealing rings, and sealing rings are respectively provided in the sealing ring grooves. The sleeve is installed on the outer sides of the two symmetrical sealing rings to form a sealing pair. The clamp is a clamshell structure. The clamp consists of a clamp, a first pin, a second pin, and a locking structure. A hinge hole is provided at one end of the clamp and a pin hole is provided at the other end. The two sides of the clamp are serrated and annularly protruded inwardly. The annular protrusion is on the outer side of the sealing ring groove to limit movement. Two clamps are relatively provided. One end of the clamp is hingedly connected by a first pin passing through the hinge hole, and a second pin is respectively installed in the pin hole at the other end. The locking structure is provided with three groups. Locking structures are staggered on the second pin. The locking structure consists of a locking hook and a torsion spring. The torsion spring is placed between the locking hook and the clamp. The locking structure is locked by a clip on the second pin on the opposite side. Within the axial limit range, the sleeve achieves axial compensation according to the designed axial distance. Furthermore, the sleeve, sleeve, and retaining ring are designed with appropriate radial clearances and structures to achieve angular compensation according to the designed radial angle. When locked, the torsion spring undergoes a certain degree of elastic deformation, relying on the elastic force of this deformation to maintain the locking hook in the locked position. In this locked position, the hook restricts the position change of the other pin. The retaining ring requires sheet or strip material. Through structural matching, it can be directly formed using sheet metal processing, significantly reducing the amount of raw material while significantly improving processing efficiency, better controlling processing deformation, and significantly enhancing quality consistency.

[0005] Furthermore, the stepped end of the sleeve can be connected to the pipeline through various methods such as spinning, plug welding, butt welding, etc. through structural design, or converted into the interface size of the finished conduit connection. Installation and disassembly are convenient, and the locking structure can be opened and closed by hand, achieving rapid disassembly and assembly.

[0006] Furthermore, the clamping ring is provided with a plurality of weight-reducing holes.

[0007] Beneficial effects of the utility model:

[0008] (1) The flexible joint is easy to disassemble and assemble, and the lock structure can be opened and closed by hand without the use of tools;

[0009] (2) The lock structure can realize the anti-loosening function. After installation, there is no need to use additional anti-loosening methods such as fuses, which effectively saves installation time and can be used in locations with small installation space;

[0010] (3) Hole shaft and O-ring seal, the sealing pair is mature and simple, the seal is reliable, and the sealing processing cost is low;

[0011] (4) Compared with other rigid and flexible connection joints currently on board, it is lightweight;

[0012] (5) This flexible joint is a multi-specification product of the same series. Compared with other clamps that are made of a variety of rods or thick-walled pipes, its clamps use plates or strips as raw materials, which can greatly reduce the amount of raw materials used and the inventory of raw materials of different specifications; the processing efficiency is greatly improved, the processing deformation can be better controlled, and the quality consistency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are incorporated into and constitute a part of the specification, illustrating embodiments of the present invention and, together with the specification, explaining the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of the lightweight sheet metal flexible joint provided by the utility model;

[0015] Figure 2 A schematic diagram of the clamp structure provided by the utility model;

[0016] Figure 3 A top view of the clamp provided by the utility model;

[0017] In the attached figure: 1-pipe sleeve, 11-seal ring groove, 12-step

[0018] 2-Sleeve

[0019] 3-Sealing ring

[0020] 4-clamp, 41-clamp ring, 411-hinge hole, 412-pin hole, 413-weight reduction hole

[0021] 42-pin shaft 1, 43-pin shaft 2,

[0022] 44-locking structure, 441-locking hook, 442-torsion spring DETAILED DESCRIPTION

[0023] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0024] See also Figure 1 The figure shows a schematic diagram of the structure of a lightweight sheet metal flexible joint provided by the utility model, which consists of a pipe sleeve 1, a sleeve 2, a sealing ring 3, and a clamp 4. A sealing ring groove 11 is provided on the outside of one end of the pipe sleeve 1, and a step 12 is provided on the outside of the other end. The pipe sleeve 1 is symmetrically provided with two sealing rings 3, each of which is provided with a sealing ring 3. The sleeve 2 is installed on the outside of the two symmetrical sealing rings 3 to form a sealing pair. The clamp 4 is a clamshell structure. The clamp 4 consists of a clamp 41, a pin shaft 1 42, a pin shaft 2 43, and a locking structure 44. The clamp 41 is provided with a hinge hole 411 at one end and a pin hole 412 at the other end. The collar 41 has serrated edges on both sides and an inwardly projecting annular projection. This projection is located outside the sealing ring groove 11, thereby restricting the movement of the sleeve 1. Two collars 41 are positioned opposite each other. One end of each collar 41 is hingedly connected via a first pin 42 extending through a hinge hole 411. Second pins 43 are mounted on the pin holes 412 at the other ends. Three groups of locking mechanisms 44 are provided, with staggered locking mechanisms 44 mounted on the second pins 43. These mechanisms consist of a locking hook 441 and a torsion spring 442 positioned between the locking hook 441 and the collar 41. The locking mechanisms 44 snap onto the opposite second pins 43 for secure locking. Within the axial limit position range, the sleeve 1 can achieve axial compensation according to the designed axial distance. Furthermore, appropriate radial clearances and structures are designed between the sleeve 1, the sleeve 2, and the collar 41, enabling angular compensation according to the designed radial angle. Torsion spring 442 undergoes a certain amount of elastic deformation in the locked state, relying on the elastic force of this deformation to maintain the locking hook in the locked position. In this locked position, locking hook 441 can restrict the position change of the other pin. The raw material of the clamping ring 41 is plate or strip. Through the matching structural design, it can be directly formed using sheet metal processing, which greatly reduces the amount of raw materials and greatly improves processing efficiency, better controls processing deformation, and greatly improves quality consistency.

[0025] The stepped end 12 of the sleeve 1 connects to the pipeline via spinning, plug welding, or butt welding, or is converted to the interface dimensions of the finished conduit connection. Installation and disassembly are easy, and the locking mechanism can be opened and closed manually, enabling quick assembly and disassembly. The collar 41 is provided with several lightening holes 413 to further reduce weight.

[0026] The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit the scope of the present invention. Any modification or equivalent substitution of the technical solution of the present invention made by ordinary technicians in this field shall be included in the scope of the claims of the present invention as long as it does not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A lightweight sheet metal flexible joint, characterized by: The invention is composed of a pipe sleeve (1), a sleeve (2), a sealing ring (3), and a clamp (4). The outer side of one end of the pipe sleeve (1) is provided with a sealing ring groove (11), and the outer side of the other end is provided with a step (12). The pipe sleeve (1) is symmetrically provided with two sealing rings (3) in each of the sealing ring grooves (11). The sleeve (2) is installed on the outer sides of the two symmetrical sealing rings (3) to form a sealing pair. The clamp (4) is a clamshell structure. The clamp (4) is composed of a clamp (41), a pin shaft 1 (42), a pin shaft 2 (43), and a locking structure (44). One end of the clamp (41) is provided with a hinge hole (411) and the other end is provided with a pin hole (412). Both sides of the clamp (41) are serrated and The invention discloses a ring-shaped protrusion inward, wherein two clamping rings (41) are arranged opposite to each other, one end of the clamping ring (41) is hingedly connected through a pin shaft (42) passing through a hinge hole (411), and the pin hole (412) at the other end is respectively installed with a pin shaft (43). The locking structure (44) is provided with three groups, and the locking structures (44) are staggeredly installed on the pin shaft (43). The locking structure (44) is composed of a locking hook (441) and a torsion spring (442). The torsion spring (442) is placed between the locking hook (441) and the clamping ring (41). The locking structure (44) is buckled on the opposite side pin shaft (43) to be buckled and locked. The clamping ring (41) is made of a plate or a strip material and can be directly processed and formed by a sheet metal process.

2. The lightweight sheet metal flexible joint according to claim 1, characterized in that: The step (12) end of the pipe sleeve (1) is connected to the pipeline by spinning, plug welding, or butt welding.

3. The lightweight sheet metal flexible joint according to claim 1, characterized in that: The clamping ring (41) is provided with a plurality of weight-reducing holes (413).

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