CN217130696U - Universal hinge type expansion joint - Google Patents
Universal hinge type expansion joint Download PDFInfo
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- CN217130696U CN217130696U CN202220214230.8U CN202220214230U CN217130696U CN 217130696 U CN217130696 U CN 217130696U CN 202220214230 U CN202220214230 U CN 202220214230U CN 217130696 U CN217130696 U CN 217130696U
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- expansion joint
- pipe
- tie rod
- end pipe
- hinge type
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Abstract
The utility model discloses an universal hinge type expansion joint relates to pipeline compensation technical field, be in including the intervalve, set up respectively the bellows and the setting at the both ends of intervalve are in each the bellows is kept away from the end pipe of the one end of intervalve, the adapter sleeve is established to the fixed cover of outer wall of intervalve, each the balanced ring is established to the equal cover in periphery of end pipe, be equipped with a plurality of flaps on the end pipe, the flap with the balanced ring rotationally is connected, each through the round pin axle balanced ring with be equipped with pull rod assembly between the adapter sleeve. Due to the arrangement, when the angle of the end pipe changes, the angle of the balance ring also changes, the hinge plate rotates around the pin shaft, the pull rod assembly acts between the balance ring and the connecting sleeve, certain restriction and buffering effects are achieved on the angle change of the balance ring, and the stability of the structure is improved; the two corrugated pipes enable the compensation amount of the universal hinge type expansion joint to be larger, the angle change of the end pipe is more flexible, and the installation and the use of the expansion joint are more convenient.
Description
Technical Field
The utility model relates to a pipeline compensation technical field, more specifically say, relate to an universal hinge type expansion joint.
Background
The hinge type expansion joint is mainly applied to various complex piping systems, and absorbs angular displacement of pipelines, conveying channels or containers and the like along the axial direction thereof due to thermal expansion or contraction through the change of the angle of the hinge type expansion joint. Usually two or three pieces are used in combination, the compensation quantity is proportional to the distance between two products, its advantages are small size, light weight, the pressure thrust of the products is borne by the hinge component, and the hinge type expansion joint can compensate the angular displacement of the pipeline in any direction. The general hinge type expansion joint comprises end pipes, a corrugated pipe, a balance ring, a hinge plate and a pin shaft, wherein the corrugated pipe is arranged between the two end pipes, the compensation amount of the corrugated pipe is limited, and when the angle of the end pipes changes, the relative angle of the balance ring changes, and the balance ring is not stable enough.
Therefore, how to solve the problems of small compensation amount and unstable structure of the hinge type expansion joint in the prior art becomes an important technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an universal hinge type expansion joint to solve among the prior art hinge type expansion joint compensation volume less, and the unstable problem of structure. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides an universal hinge type expansion joint, be in including the intervalve, set up respectively the bellows and the setting at the both ends of intervalve are in each the bellows is kept away from the end pipe of the one end of intervalve, the adapter sleeve is established to the fixed cover of outer wall of intervalve, each the balancing ring is established to the equal cover in periphery of end pipe, be equipped with a plurality of flaps on the end pipe, the flap with the balancing ring rotationally is connected, each through the round pin axle balancing ring with be equipped with pull rod assembly between the adapter sleeve.
Preferably, the pull rod assembly comprises a first pull rod, a second pull rod and a universal joint, the first end of the first pull rod and the first end of the second pull rod are connected with the universal joint, the second end of the first pull rod is fixedly connected with the side face of the balance ring, and the second end of the second pull rod is fixedly connected with the connecting sleeve.
Preferably, the outer wall of the end pipe is provided with a plurality of fixing blocks, the hinge plates correspond to the fixing blocks one to one, and each hinge plate is fixedly arranged at the upper end of the corresponding fixing block.
Preferably, four fixing blocks are arranged on each end pipe, and the fixing blocks are uniformly distributed along the circumferential direction of the end pipe.
Preferably, each corrugated pipe is internally sleeved with a flow guide pipe, one end of each flow guide pipe is positioned in the end pipe, and the other end of each flow guide pipe is positioned in the middle pipe.
Preferably, at least two tie rod assemblies are arranged between each balance ring and the connecting sleeve, and the tie rod assemblies are uniformly distributed along the circumferential direction of the balance ring.
The utility model provides an among the technical scheme, universal hinge type expansion joint includes intermediate pipe, two bellows, two end pipes. The intermediate pipe is arranged between the two corrugated pipes, one end of each corrugated pipe, which is far away from the intermediate pipe, is connected with one end pipe, the outer wall of the intermediate pipe is sleeved with a connecting sleeve, the connecting sleeve is fixedly connected with the intermediate pipe, and the periphery of each end pipe is sleeved with a balance ring. Each end pipe is rotatably connected with the corresponding balance ring, specifically, the outer wall of each end pipe is provided with a plurality of hinge plates, the hinge plates are connected with the balance rings through hinge pins, and the hinge pins penetrate through the ring wall of the balance rings and the whole thickness of the hinge plates. When the angle of the end pipe changes, the hinge plate rotates by taking the pin shaft as an axis. And a pull rod assembly is arranged between each balance ring and the connecting sleeve. So set up, universal hinge type expansion joint includes two bellows, can improve its compensation volume for the installation and the use of universal hinge type expansion joint are more nimble, and the pull rod subassembly between gimbal and the adapter sleeve can produce the effect of restriction and buffering to gimbal's removal, improves the stability of universal hinge type expansion joint.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a universal hinge type expansion joint according to an embodiment of the present invention.
In the figure:
the structure comprises a middle pipe 1, a corrugated pipe 2, an end pipe 3, a connecting sleeve 4, a balance ring 5, a fixed block 6, a hinge plate 7, a pin shaft 8, a pull rod assembly 9, a first pull rod 91, a second pull rod 92, a universal joint 93 and a guide pipe 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The purpose of this embodiment is to provide a universal hinge type expansion joint, solve the problem that the hinge type expansion joint compensation volume is less and the structure is unstable among the prior art.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.
Referring to fig. 1, in the present embodiment, the universal hinge type expansion joint includes a middle pipe 1, two corrugated pipes 2 and two end pipes 3, the two corrugated pipes 2 are respectively disposed at two ends of the middle pipe 1, and one end of each corrugated pipe 2 away from the middle pipe 1 is provided with one end pipe 3. The outer wall of the middle pipe 1 is sleeved with a connecting sleeve 4, and the connecting sleeve 4 is fixedly connected with the middle pipe 1. The periphery of each end pipe 3 all overlaps establishes gimbal 5, gimbal 5 rotationally is connected with the corresponding end pipe 3, specifically, fixedly on the outer wall of each end pipe 3 is equipped with a plurality of flap 7, and each flap 7 is connected through round pin axle 8 with gimbal 5, and round pin axle 8 runs through gimbal 5's rampart and the whole thickness of flap 7, all is equipped with pull rod assembly 9 between each gimbal 5 and the adapter sleeve 4.
When the universal hinged expansion joint performs angular displacement compensation, the end pipe 3 has angle change, the balance ring 5 corresponding to the end pipe 3 also has angle change, at the moment, the hinge plate 7 rotates by taking the pin shaft 8 as an axis, and the pull rod assembly 9 acts between the balance ring 5 and the connecting sleeve 4, so that certain restriction and buffering effects can be generated on the angle change of the balance ring 5, and the problem that the balance ring 5 is unstable when the angle change occurs in the prior art is solved; two ends of the middle pipe 1 are respectively provided with the corrugated pipe 2, and the two end pipes 3 can flexibly change angles, so that the compensation amount of the universal hinge type expansion joint is increased, and the universal hinge type expansion joint is more convenient to use and install.
In a preferred embodiment of the present invention, the pull rod assembly 9 includes a first pull rod 91, a second pull rod 92 and a universal joint 93, a first end of the first pull rod 91 is connected to the universal joint 93, a second end of the first pull rod is fixedly connected to the side surface of the balance ring 5, a first end of the second pull rod 92 is also connected to the universal joint 93, and a second end of the second pull rod is fixedly connected to the side surface of the connection sleeve 4. That is, the universal joint 93 is disposed between the first end of the first pull rod 91 and the first end of the second pull rod 92. The universal joint 93 is a ball joint, so that the first pull rod 91 and the second pull rod 92 can be angled. When the angle of the end pipe 3 changes, the angle of the balance ring 5 also changes, at this time, the included angle between the first pull rod 91 and the second pull rod 92 changes, which generates a buffering effect on the movement of the balance ring 5, and meanwhile, the bending angle structure formed by the first pull rod 91 and the second pull rod 92 is consistent with the bending formed by the compensation angular displacement of the corrugated pipe 2, and the pull rod assembly 9 does not influence the work of the corrugated pipe 2.
In a specific embodiment, at least two tie rod assemblies 9 are arranged between each balance ring 5 and the connecting sleeve 4, and the tie rod assemblies 9 are uniformly distributed along the circumferential direction of the balance ring 5. So set up, universal hinge type expansion joint is when using, and a plurality of tie rod assembly 9 carry out the transmission of force between gimbal 5 and adapter sleeve 4, and the stability of structure is better when the end pipe 3 takes place the angle change.
In this embodiment, the outer wall of each end pipe 3 is provided with a plurality of fixing blocks 6, the hinge plates 7 correspond to the fixing blocks 6 one by one, and each hinge plate 7 is fixedly arranged at the upper end of the corresponding fixing block 6. In a specific embodiment, four fixing blocks 6 are arranged on each end pipe 3, and the fixing blocks 6 are uniformly distributed along the circumferential direction of the end pipe 3. Two fixing blocks 6 in opposite positions are positioned on the same side of the balance ring 5, and two adjacent fixing blocks 6 are positioned on the opposite sides of the balance ring 5, so that the rotation between the hinge plate 7 and the balance ring 5 is more flexible when the angle of the end pipe 3 is changed.
In the preferred embodiment of the present invention, a flow guide tube 10 is sleeved in each corrugated tube 2, one end of the flow guide tube 10 is located in the end tube 3, and the other end is located in the middle tube 1. In the specific embodiment, if the medium flow direction in the universal hinge type expansion joint is from left to right, the left end of the guide pipe 10 positioned on the left side of the middle pipe 1 is a fixed end and is fixedly connected with the inner wall of the end pipe 3 arranged on the left side of the middle pipe 1, and the right end of the guide pipe is a free end and extends into the middle pipe 1; the left end of the guide pipe 10 positioned at the right side of the middle pipe 1 is a fixed end and is fixedly connected with the inner wall of the middle pipe 1, and the right end of the guide pipe is a free end and extends into the end pipe 3 arranged at the right side of the middle pipe 1. The honeycomb duct 10 plays a role in guiding the flow of the medium and can also reduce the pressure and impact force of the medium on the inner wall of the corrugated pipe 2.
The following describes the present universal hinge type expansion joint in detail with reference to the above embodiments, in this embodiment, the universal hinge type expansion joint includes a middle pipe 1, two corrugated pipes 2 and two end pipes 3, the two corrugated pipes 2 are respectively disposed at two ends of the middle pipe 1, and one end pipe 3 is disposed at one end of each corrugated pipe 2 far from the middle pipe 1. The outer wall of the middle pipe 1 is sleeved with a connecting sleeve 4, and the connecting sleeve 4 is fixedly connected with the middle pipe 1. The periphery of each end pipe 3 all overlaps establishes the gimbal ring 5, along four fixed blocks 6 of circumference evenly distributed on the outer wall of each end pipe 3, the upper end of each fixed block 6 all is equipped with the flap 7, and each flap 7 rotationally is connected through round pin axle 8 with gimbal ring 5, and round pin axle 8 runs through the rampart of gimbal ring 5 and the whole thickness of flap 7. Two pull rod assemblies 9 are arranged between each balance ring 5 and the connecting sleeve 4. Each tie rod assembly 9 includes a first tie rod 91, a second tie rod 92 and a universal joint 93, a first end of the first tie rod 91 and a first end of the second tie rod 92 are connected with the universal joint 93, a second end of the first tie rod 91 is fixedly connected with the side of the balance ring 5, and a second end of the second tie rod 92 is fixedly connected with the side of the connecting sleeve 4. The honeycomb duct 10 is sleeved in each corrugated pipe 2.
With the arrangement, when the angle of the end pipe 3 changes, the angle of the balance ring 5 also changes, the hinge plate 7 rotates around the pin shaft 8, the included angle between the first pull rod 91 and the second pull rod 92 of the pull rod assembly 9 also changes, the pull rod assembly 9 acts on the balance ring 5 and the connecting sleeve 4, the angle change of the balance ring 5 is restricted and buffered to a certain extent, and the structural stability is improved; moreover, the design of the two corrugated pipes 2 ensures that the compensation amount of the universal hinge type expansion joint is larger, the angle change of the end pipe 3 is more flexible, and the installation and the use are more convenient.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar contents in other embodiments may be referred to for the contents which are not described in detail in some embodiments. The utility model provides a plurality of schemes contain the basic scheme of itself, mutual independence to restrict each other, but it also can combine each other under the condition of not conflicting, reaches a plurality of effects and realizes jointly.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a universal hinge type expansion joint, its characterized in that includes intermediate tube (1), sets up respectively bellows (2) and the setting at the both ends of intermediate tube (1) are at each bellows (2) are kept away from end pipe (3) of the one end of intermediate tube (1), adapter sleeve (4), each are established to the fixed cover of outer wall of intermediate tube (1) the periphery of end pipe (3) all overlaps establishes compensating ring (5), be equipped with a plurality of flap (7) on end pipe (3), flap (7) with compensating ring (5) rotationally are connected through round pin axle (8), each compensating ring (5) with be equipped with pull rod assembly (9) between adapter sleeve (4).
2. The gimbal hinge type expansion joint according to claim 1, wherein the tie rod assembly (9) comprises a first tie rod (91), a second tie rod (92) and a gimbal joint (93), wherein a first end of the first tie rod (91) and a first end of the second tie rod (92) are connected to the gimbal joint (93), a second end of the first tie rod (91) is fixedly connected to a side surface of the gimbal ring (5), and a second end of the second tie rod (92) is fixedly connected to the connection sleeve (4).
3. The expansion joint of the universal hinge type according to claim 1, wherein the outer wall of the end pipe (3) is provided with a plurality of fixing blocks (6), the hinge plates (7) are in one-to-one correspondence with the fixing blocks (6), and each hinge plate (7) is fixedly arranged at the upper end of the corresponding fixing block (6).
4. A cardan hinge type expansion joint according to claim 3 wherein four said attachment blocks (6) are provided on each of said end pipes (3) and each of said attachment blocks (6) is uniformly distributed along the circumference of said end pipe (3).
5. The expansion joint according to claim 1, wherein a fluid-conducting tube (10) is housed inside each bellows (2), one end of said fluid-conducting tube (10) being located inside said end tube (3) and the other end being located inside said intermediate tube (1).
6. The expansion joint according to claim 1, wherein at least two tie rod assemblies (9) are provided between each gimbal ring (5) and the connecting sleeve (4), and each tie rod assembly (9) is uniformly distributed in the circumferential direction of the gimbal ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220214230.8U CN217130696U (en) | 2022-01-26 | 2022-01-26 | Universal hinge type expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220214230.8U CN217130696U (en) | 2022-01-26 | 2022-01-26 | Universal hinge type expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217130696U true CN217130696U (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220214230.8U Active CN217130696U (en) | 2022-01-26 | 2022-01-26 | Universal hinge type expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217130696U (en) |
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2022
- 2022-01-26 CN CN202220214230.8U patent/CN217130696U/en active Active
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