CN220303043U - Expansion joint - Google Patents
Expansion joint Download PDFInfo
- Publication number
- CN220303043U CN220303043U CN202321871850.XU CN202321871850U CN220303043U CN 220303043 U CN220303043 U CN 220303043U CN 202321871850 U CN202321871850 U CN 202321871850U CN 220303043 U CN220303043 U CN 220303043U
- Authority
- CN
- China
- Prior art keywords
- pipe
- driving
- tube
- expansion joint
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001816 cooling Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000004378 air conditioning Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000000110 cooling liquid Substances 0.000 description 10
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Joints Allowing Movement (AREA)
Abstract
The utility model provides an expansion joint, and aims to solve the technical problem that connection tightness is poor under the condition of expansion of the expansion joint under heating in the prior art. The expansion joint comprises: an inner tube; the inner pipe is sleeved with the outer pipe: an outer tube, one end of which is connected with one end of the inner tube; one end of the corrugated pipe is connected with the other end of the outer pipe; one end of the driving pipe is connected with the other end of the corrugated pipe; further comprises: the cooling pipe is sleeved outside the driving pipe, two ends of the cooling pipe are connected with the outer wall of the driving pipe in a sealing way, two sides of the cooling pipe are respectively provided with a water outlet pipe and a water inlet pipe, and a gap exists between the inner wall of the cooling pipe and the outer wall of the driving pipe; and one end of the telescopic component is connected with the side part of the outer tube, and the output end of the telescopic component is connected with the side part of the driving tube. The expansion joint has the advantage that the end part of the expansion joint can be prevented from being expanded by heating.
Description
Technical Field
The utility model relates to a joint, in particular to an expansion joint.
Background
In the industry of smelting steel, the expansion joint is a key device for connecting an alloy charging system and a vacuum chamber, and is in compression contact with a pneumatic flap valve in an elongation state under normal conditions, and when the vacuum chamber needs to be moved, the expansion joint is separated from the pneumatic flap valve.
At present, when the expansion joint works, the expansion joint is in a high-temperature environment, and the end part of the expansion joint expands under the condition of being heated, so that the inner diameter of one end of the expansion joint, which is in compression joint with a pneumatic flap valve, is reduced, the outer diameter of the expansion joint is increased, and the connection tightness is reduced.
Disclosure of Invention
Aiming at the technical problem that the connection tightness is poor under the condition of thermal expansion of the expansion joint in the prior art, the utility model provides the expansion joint which has the advantage that the thermal expansion of the end part of the expansion joint can be avoided.
The technical scheme of the utility model is as follows:
a telescopic joint, comprising:
an inner tube; a kind of electronic device with high-pressure air-conditioning system
The inner pipe is sleeved with the outer pipe:
an outer tube, one end of which is connected with one end of the inner tube;
one end of the corrugated pipe is connected with the other end of the outer pipe;
one end of the driving pipe is connected with the other end of the corrugated pipe;
further comprises:
the cooling pipe is sleeved outside the driving pipe, two ends of the cooling pipe are connected with the outer wall of the driving pipe in a sealing way, two sides of the cooling pipe are respectively provided with a water outlet pipe and a water inlet pipe, and a gap exists between the inner wall of the cooling pipe and the outer wall of the driving pipe;
and one end of the telescopic component is connected with the side part of the outer tube, and the output end of the telescopic component is connected with the side part of the driving tube.
Optionally, at least three telescopic components are uniformly arranged around the driving tube.
Optionally, the telescopic assembly comprises:
and the cylinder body of the cylinder is connected with the side part of the outer tube, and the piston rod of the cylinder is connected with the side part of the driving tube.
Optionally, one end of the driving tube away from the corrugated tube is arranged on a driving plate, and the output end of the telescopic assembly is connected with the driving plate.
Optionally, the water inlet pipe is close to the driving plate relative to the water outlet pipe.
Optionally, a supporting plate is arranged outside one end, connected with the inner pipe, of the outer pipe, and the end part of the telescopic assembly is connected to the supporting plate.
Optionally, the both ends of flexible subassembly respectively with the backup pad with the drive plate rotates to be connected, the pivot at flexible subassembly both ends is parallel to each other.
Optionally, an annular sealing groove is formed in the supporting plate.
Optionally, the outer diameter of the inner tube is smaller than the inner diameter of the outer tube, which is equal to the inner diameter of the drive tube.
Compared with the prior art, the utility model has the beneficial effects that:
the telescopic joint is characterized in that an inner pipe, an outer pipe, a corrugated pipe, a driving pipe and a telescopic component are arranged to form a basic telescopic joint, then a cooling pipe is sleeved outside the driving pipe, an outlet pipe and an inlet pipe are respectively arranged on two sides of the cooling pipe, and meanwhile, a gap exists between the inner wall of the cooling pipe and the outer wall of the driving pipe.
In the use process, a pipeline is respectively connected to the water inlet pipe and the water outlet pipe, cooling liquid is conveyed into a gap between the driving pipe and the cooling pipe through the water inlet pipe, and then the cooling liquid is fully filled in the gap and is output from the water outlet pipe. The cooling liquid realizes heat exchange with the driving pipe in the gap between the cooling pipe and the driving pipe, so that the temperature of the driving pipe is reduced, and the problem that the driving pipe cannot be tightly connected with the pneumatic flap valve due to thermal expansion is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic top view of the present utility model;
fig. 3 is a schematic view of the state of the utility model.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships conventionally placed in use of the product of the present utility model, or orientations or positional relationships conventionally understood by those skilled in the art, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Examples:
referring to fig. 1-3, an expansion joint comprises an inner tube 1, an outer tube 2, a corrugated tube 3, a driving tube 4, a cooling tube 5, an outlet tube 6, a water inlet tube 7 and an expansion assembly 8. Wherein, inner tube 1, outer tube 2, bellows 3, actuating tube 4 and cooling tube 5 are hollow cylinder, and outer tube 2, bellows 3 and actuating tube 4 all overlap and establish in inner tube 1 outside.
Specifically, one end of the outer tube 2 is fixedly connected with one end of the inner tube 1, one end of the outer tube 2 connected with the inner tube 1 is on the same plane, and the projection of the outer tube 2 on the inner tube 1 is completely located on the outer wall of the inner tube 1. One end of the corrugated pipe 3 is fixedly connected with the other end of the outer pipe 2, and the other end of the corrugated pipe 3 is fixedly connected with one end of the driving pipe 4.
One end of the telescopic component 8 is connected with the side part of the outer tube 2, the connecting end is positioned at the side part of one end of the outer tube 2 connected with the inner tube 1, and the output end of the telescopic component 8 is connected with the side part of one end of the driving tube 4 far away from the corrugated tube 3.
Bellows 3 is flexible so that bellows 3 can be extended and contracted when the output end of retraction assembly 8 drives drive tube 4 to move.
The cooling tube 5 is sleeved outside the driving tube 4, and the inner diameter of the cooling tube 5 is larger than the outer diameter of the driving tube 4, so that a gap exists between the cooling tube 5 and the driving tube 4. Both ends of the cooling tube 5 are connected hermetically to the outside of the drive tube 4 (typically by welding rings).
One side of the cooling pipe 5 is provided with a water inlet pipe 7, the other side is provided with a water outlet pipe 6, and the directions of the water outlet pipe 6 and the water inlet pipe 7 are opposite and perpendicular to the axis of the inner pipe 1.
Preferably, the outer diameter of the inner tube 1 is smaller than the inner diameter of the outer tube 2, the inner diameter of the outer tube 2 being equal to the inner diameter of the drive tube 4.
The working principle of the embodiment is as follows: the inner pipe 1, the outer pipe 2, the corrugated pipe 3, the driving pipe 4 and the telescopic component 8 are arranged to form a basic telescopic joint, then a cooling pipe 5 is sleeved outside the driving pipe 4, a water outlet pipe 6 and a water inlet pipe 7 are respectively arranged on two sides of the cooling pipe 5, and meanwhile, a gap exists between the inner wall of the cooling pipe 5 and the outer wall of the driving pipe 4.
In the use process, a pipeline is respectively connected to the water inlet pipe 7 and the water outlet pipe 6, cooling liquid is conveyed into a gap between the driving pipe 4 and the cooling pipe 5 through the water inlet pipe 7, and then the gap is filled with the cooling liquid and then the cooling liquid is output from the water outlet pipe 6. The cooling liquid exchanges heat with the driving pipe 4 in the gap between the cooling pipe 5 and the driving pipe 4, so that the temperature of the driving pipe 4 is reduced, and the problem that the driving pipe 4 cannot be tightly connected with the pneumatic flap valve due to thermal expansion is avoided.
In one particular embodiment:
the ring drive pipe 4 a week evenly is equipped with at least three expansion assembly 8, and expansion assembly 8 includes the cylinder, and the cylinder body of cylinder is connected with the lateral part of outer tube 2, and the piston rod of cylinder is the output of this expansion assembly 8.
Wherein, drive tube 4 is provided with a drive plate 9 on the one end that is kept away from bellows 3, and the piston tube tip of cylinder is connected with this drive plate 9. A supporting plate 10 is arranged on the periphery of the connecting end of the outer tube 2 and the inner tube 1, and the cylinder body of the air cylinder is connected with the supporting plate 10.
Meanwhile, the cylinder body of the air cylinder is in rotary connection with the supporting plate 10, and the end part of the piston rod of the air cylinder is also in rotary connection with the driving plate 9. The axes of rotation at the ends of the cylinder are parallel to each other and perpendicular to the axis of the drive tube 4.
In the present embodiment, the driving plate 9 is driven by the cylinders to draw the bellows 3 to be elongated or shortened, and by uniformly distributing three cylinders in the circumferential direction of the driving tube 4, the end portion of the driving tube 4 can be uniformly forced.
In addition, the support plate 10 and the drive plate 9 are provided for the purpose of facilitating the installation of the air cylinder. In addition, through the rotary connection of the two ends of the air cylinder with the supporting plate 10 and the driving plate 9 respectively, the end part of the driving pipe 4 can be automatically aligned in a smaller amplitude when being in butt joint with the pneumatic flap valve.
In another specific embodiment:
the distance between the water inlet pipe 7 and the driving plate 9 is set as a, and the distance between the water outlet pipe 6 and the driving plate 9 is set as b. In order to allow the cooling liquid to enter the gap between the drive tube 4 and the cooling tube 5 and to fill the gap so that a < b, and thus to allow the cooling liquid to enter the gap from a low position, it is also possible to allow the cooling liquid to have a longer heat exchange time with the drive tube 4.
In another specific embodiment:
the support plate 10 is provided with an annular sealing groove for adding a sealing ring.
The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (9)
1. An expansion joint, comprising:
an inner tube; a kind of electronic device with high-pressure air-conditioning system
The inner pipe is sleeved with the outer pipe:
an outer tube, one end of which is connected with one end of the inner tube;
one end of the corrugated pipe is connected with the other end of the outer pipe;
one end of the driving pipe is connected with the other end of the corrugated pipe;
further comprises:
the cooling pipe is sleeved outside the driving pipe, two ends of the cooling pipe are connected with the outer wall of the driving pipe in a sealing way, two sides of the cooling pipe are respectively provided with a water outlet pipe and a water inlet pipe, and a gap exists between the inner wall of the cooling pipe and the outer wall of the driving pipe;
and one end of the telescopic component is connected with the side part of the outer tube, and the output end of the telescopic component is connected with the side part of the driving tube.
2. The expansion joint according to claim 1, wherein,
at least three telescopic components are uniformly arranged on the periphery of the driving tube.
3. The expansion joint of claim 2, wherein the expansion assembly comprises:
and the cylinder body of the cylinder is connected with the side part of the outer tube, and the piston rod of the cylinder is connected with the side part of the driving tube.
4. The expansion joint according to claim 1, wherein,
one end of the driving pipe, which is far away from the corrugated pipe, is arranged on one driving plate, and the output end of the telescopic component is connected with the driving plate.
5. The expansion joint according to claim 4, wherein,
the water inlet pipe is close to the driving plate relative to the water outlet pipe.
6. The expansion joint according to claim 4, wherein,
the outer tube with the one end outside that the inner tube is connected is equipped with a backup pad, the end connection of flexible subassembly in the backup pad.
7. The expansion joint according to claim 6, wherein,
the two ends of the telescopic component are respectively connected with the supporting plate and the driving plate in a rotating way, and the rotating shafts at the two ends of the telescopic component are parallel to each other.
8. The expansion joint according to claim 6, wherein,
an annular sealing groove is formed in the supporting plate.
9. The expansion joint according to any one of claims 1 to 8, wherein,
the outer diameter of the inner tube is smaller than the inner diameter of the outer tube, and the inner diameter of the outer tube is equal to the inner diameter of the driving tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321871850.XU CN220303043U (en) | 2023-07-17 | 2023-07-17 | Expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321871850.XU CN220303043U (en) | 2023-07-17 | 2023-07-17 | Expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220303043U true CN220303043U (en) | 2024-01-05 |
Family
ID=89372146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321871850.XU Active CN220303043U (en) | 2023-07-17 | 2023-07-17 | Expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220303043U (en) |
-
2023
- 2023-07-17 CN CN202321871850.XU patent/CN220303043U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |