CN112719103A - Pipe expander joint fixing device and pipe expander - Google Patents
Pipe expander joint fixing device and pipe expander Download PDFInfo
- Publication number
- CN112719103A CN112719103A CN202011376258.3A CN202011376258A CN112719103A CN 112719103 A CN112719103 A CN 112719103A CN 202011376258 A CN202011376258 A CN 202011376258A CN 112719103 A CN112719103 A CN 112719103A
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- Prior art keywords
- positioning
- pipe expander
- hole
- base
- shaft section
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Links
- 210000004907 gland Anatomy 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention provides a pipe expander joint fixing device and a pipe expander, wherein the pipe expander joint fixing device is used for mounting a pipe expander joint on a base, the pipe expander joint comprises a first shaft section, a positioning shaft section and a second shaft section which are sequentially connected, and the diameter of the first shaft section and the diameter of the second shaft section are smaller than the diameter of the positioning shaft section; the base is provided with a first through hole for the first shaft section to pass through; the electric tube expander connects fixing device includes: the fixing seat is provided with a first connecting part used for being connected with the base; the fixed seat is provided with a second through hole; the positioning ring is arranged in the second through hole and is provided with a third through hole for the positioning shaft section to pass through; the gland is detachably arranged on one side of the fixed seat away from the base; and a fourth through hole for the second shaft section to pass through is formed in the gland so as to limit the positioning shaft section through the gland and the base. The joint fixing device of the pipe expander solves the problem that the joint of the pipe expander is inconvenient to replace in the pipe expander joint fixing device in the prior art.
Description
Technical Field
The invention relates to the field of pipe expanding equipment, in particular to a pipe expander joint fixing device and a pipe expander.
Background
In the processing process of the air-conditioning heat exchanger, the tube expander is generally adopted to expand the copper tube, so that the copper tube can be in better contact with the fins, and the heat exchange effect of the heat exchanger is ensured.
When the pipe expanding operation is performed on copper pipes with different pipe diameters, the joints of the pipe expander need to be replaced. In the prior art, because the sizes of the pipe expander joints with different specifications are different, the pipe expander joint fixing device needs to be integrally disassembled and replaced when the pipe expander joint is replaced every time, the operation is troublesome, and the operation efficiency is influenced.
Disclosure of Invention
The invention mainly aims to provide a pipe expander joint fixing device and a pipe expander, and aims to solve the problem that the pipe expander joint fixing device in the prior art is inconvenient to replace a pipe expander joint.
In order to achieve the above object, according to one aspect of the present invention, there is provided a pipe expander joint fixing device for mounting a pipe expander joint on a base, the pipe expander joint including a first shaft section, a positioning shaft section, and a second shaft section connected in sequence, a diameter of the first shaft section and a diameter of the second shaft section both being smaller than a diameter of the positioning shaft section; the base is provided with a first through hole for the first shaft section to pass through; the electric tube expander connects fixing device includes: the fixing seat is provided with a first connecting part used for being connected with the base; the fixed seat is provided with a second through hole; the positioning ring is arranged in the second through hole, and a third through hole for the positioning shaft section to pass through is formed in the positioning ring; the gland is detachably arranged on one side of the fixed seat away from the base; and a fourth through hole for the second shaft section to pass through is formed in the gland so as to limit the positioning shaft section through the gland and the base.
Furthermore, the positioning rings have different models, and the outer diameters of the positioning rings of different models are the same and the inner diameters of the positioning rings are different.
Further, the diameter of the second through hole is larger than the outer diameter of the positioning ring; the joint fixing device of the pipe expander comprises an elastic structure, wherein at least part of the elastic structure is arranged between the fixing seat and the positioning ring and is in contact with the fixing seat and the positioning ring.
Furthermore, a plurality of mounting grooves are formed in the inner wall of the second through hole and are arranged at intervals along the circumferential direction of the second through hole; the elastic structures are multiple, and the elastic structures are embedded in the mounting grooves in a one-to-one correspondence mode.
Furthermore, the inner wall surface of each mounting groove is an arc surface, and the axis direction of each arc surface is parallel to the central line of the second through hole; the area of each arc surface is larger than half of the area of the cylindrical surface on which the arc surface is positioned; each elastic structure is a cylindrical structure, and the side surface of each cylindrical structure is matched with the corresponding arc surface.
Further, each mounting groove all extends to two relative terminal surfaces of fixing base, and each elastic construction's both ends respectively with base and gland one-to-one ground butt.
Furthermore, the gland is provided with an annular flange, and the annular flange is provided with internal threads; the fixing seat is provided with external threads, and the gland is connected with the fixing seat through threads.
Furthermore, a first positioning structure is arranged on the base, and a second positioning structure is arranged on the fixed seat; when the fixed seat is connected with the base, the first positioning structure is matched with the second positioning structure so as to position the relative position between the fixed seat and the base.
Furthermore, the first positioning structure is a positioning pin, the positioning pin is connected with the base through threads, and the second positioning structure is a positioning hole; and/or the number of the second positioning structures is multiple, and the multiple second positioning structures are arranged at intervals along the circumferential direction of the second through hole; the first positioning structures are multiple, and the multiple first positioning structures and the multiple second positioning structures are arranged in a one-to-one correspondence mode.
According to another aspect of the present invention, there is provided a pipe expander, comprising a pipe expander joint, a base and a pipe expander joint fixing device, wherein the pipe expander joint fixing device is the pipe expander joint fixing device described above.
The fixing device for the joint of the pipe expander is used for mounting the joint of the pipe expander on a base, the joint of the pipe expander comprises a first shaft section, a positioning shaft section and a second shaft section which are sequentially connected, and the diameter of the first shaft section and the diameter of the second shaft section are smaller than the diameter of the positioning shaft section; the base is provided with a first through hole for the first shaft section to pass through; the electric tube expander connects fixing device includes: the fixing seat is provided with a first connecting part used for being connected with the base; the fixed seat is provided with a second through hole; the positioning ring is arranged in the second through hole, and a third through hole for the positioning shaft section to pass through is formed in the positioning ring; the gland is detachably arranged on one side of the fixed seat away from the base; and a fourth through hole for the second shaft section to pass through is formed in the gland so as to limit the positioning shaft section through the gland and the base. Like this, when the conditions such as the pipe diameter of the pipe fitting of treating the expand tube change, need to change corresponding expander joint, at this moment, only need pull down the gland, then change the suitable holding ring of size of third through-hole, can adapt to the expander joint of different models, need not carry out holistic dismantlement and change to expander joint fixing device, made things convenient for the change operation that connects the expander effectively, solved the inconvenient problem that changes the expander joint of expander joint fixing device among the prior art.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
figure 1 shows a schematic cross-sectional view of a pipe expander joint as applied to an embodiment of the pipe expander joint securing arrangement of the present invention;
FIG. 2 shows a schematic representation of an embodiment of a pipe expander joint fixture in use according to the present invention;
FIG. 3 is an enlarged fragmentary view of a cross-sectional view taken along line A-A of an embodiment of the expander joint fixture of FIG. 2;
FIG. 4 is an enlarged fragmentary cross-sectional view taken along line B-B of an embodiment of the tube expander joint fixture of FIG. 2;
FIG. 5 shows a schematic view of the embodiment of the expander joint fixture of FIG. 4 with the expander joint removed;
FIG. 6 is a schematic cross-sectional view of an embodiment of a pipe expander joint fixture in use according to the present invention;
figure 7 shows an enlarged schematic view of a fragmentary region of an embodiment of a joint fixture according to the pipe expander of figure 6.
Wherein the figures include the following reference numerals:
100. a pipe expander joint; 101. a first shaft section; 102. a second shaft section; 103. positioning the shaft section; 200. a base; 1. a fixed seat; 2. a positioning ring; 3. a gland; 4. an elastic structure; 10. a first through hole; 20. a second through hole; 30. a third through hole; 40. a fourth via hole; 50. a fastener; 60. a first positioning structure; 70. and a second positioning structure.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 7, the present invention provides a pipe expander joint fixing device for mounting a pipe expander joint 100 on a base 200, wherein the pipe expander joint 100 includes a first shaft section 101, a positioning shaft section 103 and a second shaft section 102, which are connected in sequence, and both the diameter of the first shaft section 101 and the diameter of the second shaft section 102 are smaller than the diameter of the positioning shaft section 103; a first through hole 10 for the first shaft segment 101 to pass through is arranged on the base 200; the electric tube expander connects fixing device includes: the fixing base 1 is provided with a first connecting part used for being connected with the base 200; the fixed seat 1 is provided with a second through hole 20; the positioning ring 2 is arranged in the second through hole 20, and a third through hole 30 for the positioning shaft segment 103 to pass through is formed in the positioning ring 2; the gland 3 is detachably arranged on one side of the fixed seat 1 away from the base 200; the gland 3 is provided with a fourth through hole 40 for the second shaft segment 102 to pass through, so as to limit the positioning shaft segment 103 through the gland 3 and the base 200.
The pipe expander joint fixing device is used for mounting a pipe expander joint 100 on a base 200, wherein the pipe expander joint 100 comprises a first shaft section 101, a positioning shaft section 103 and a second shaft section 102 which are sequentially connected, and the diameter of the first shaft section 101 and the diameter of the second shaft section 102 are smaller than the diameter of the positioning shaft section 103; a first through hole 10 for the first shaft segment 101 to pass through is arranged on the base 200; the electric tube expander connects fixing device includes: the fixing base 1 is provided with a first connecting part used for being connected with the base 200; the fixed seat 1 is provided with a second through hole 20; the positioning ring 2 is arranged in the second through hole 20, and a third through hole 30 for the positioning shaft segment 103 to pass through is formed in the positioning ring 2; the gland 3 is detachably arranged on one side of the fixed seat 1 away from the base 200; the gland 3 is provided with a fourth through hole 40 for the second shaft segment 102 to pass through, so as to limit the positioning shaft segment 103 through the gland 3 and the base 200. Like this, when the conditions such as the pipe diameter of the pipe fitting of treating the expand tube change, need to change corresponding expand tube joint 100, at this moment, only need to pull down gland 3, then change the suitable holding ring 2 of size of third through hole 30, can adapt to the expand tube joint 100 of different models, need not carry out holistic dismantlement and change to expand tube joint fixing device, made things convenient for the change operation to expand tube joint 100 effectively, the inconvenient problem of changing the expand tube joint of the expand tube joint fixing device among the prior art has been solved.
Preferably, when the expander joint fixing device mounts the expander joint 100 on the base 200, one end of the positioning shaft segment 103 abuts against the fixed seat 1, and the other end of the positioning shaft segment 103 abuts against the gland 3.
In this embodiment, the first connecting portion is a connecting hole, and the fixing base 1 is connected to the base 200 through a fastener 50 inserted into the connecting hole. Of course, the first connection portion may be other types of connection structures as long as the connection between the fixing bases 1 can be realized.
Specifically, the positioning rings 2 have different sizes, and the positioning rings 2 of different sizes have the same outer diameter and different inner diameters.
Specifically, the diameter of the second through hole 20 is larger than the outer diameter of the positioning ring 2; the joint fixing device of the pipe expander comprises an elastic structure 4, wherein at least part of the elastic structure 4 is arranged between the fixed seat 1 and the positioning ring 2 and is in contact with the fixed seat 1 and the positioning ring 2.
In particular, at least part of the elastic structure 4 is made of an elastic material, which is a material that can be deformed when compressed, such as rubber or the like.
Specifically, the inner wall of the second through hole 20 is provided with a plurality of mounting grooves, and the mounting grooves are arranged at intervals along the circumferential direction of the second through hole 20; elastic construction 4 is a plurality of, and a plurality of elastic construction 4 inlay one-to-one establishes in a plurality of mounting grooves. Therefore, the positioning ring 2 and the pipe expander joint 100 have certain moving capacity, so that the relative position between the pipe expander joint 100 and a target pipe fitting is better adapted, and the flexibility of pipe expanding operation is improved.
Specifically, the inner wall surfaces of the mounting grooves are all arc surfaces, and the axial direction of each arc surface is parallel to the central line of the second through hole 20; the area of each arc surface is larger than half of the area of the cylindrical surface on which the arc surface is positioned; each elastic structure 4 is a cylindrical structure, and the side surface of each cylindrical structure is matched with the corresponding arc surface.
Specifically, each mounting groove all extends to two opposite end surfaces of the fixing base 1, and two ends of each elastic structure 4 are respectively abutted with the base 200 and the gland 3 in a one-to-one correspondence manner.
Preferably, the length of elastic structure 4 is greater than the length of mounting groove, that is, when elastic structure 4 is installed in the mounting groove, a part of elastic structure 4 protrudes to the outside of the mounting groove, and when gland 3 is installed in fixing base 1, the protruding part of elastic structure 4 can be squeezed, so that elastic structure 4 is deformed, and thus elastic structure 4 can be squeezed towards positioning ring 2 more fully, and the positioning stability of positioning ring 2 is improved.
In this embodiment, the elastic structure 4 is provided with a fifth through hole extending along the axial direction of the second through hole 20, and the fifth through hole extends to the two ends of the elastic structure 4, so that the elastic structure 4 is deformed more sufficiently, the positioning ring 2 is convenient to mount and dismount, and the position and the angle of the positioning ring 2 are ensured. In addition, the gland 3 is provided with a sixth through hole at a position corresponding to the fifth through hole, so that when the elastic structure 4 is pressed, gas in the fifth through hole can be discharged through the sixth through hole, and when the elastic structure 4 recovers the shape, external gas is supplemented into the fifth through hole through the sixth through hole, thereby further improving the deformation effect of the elastic structure 4 and better adapting to the position and the angle of the pipe expander joint 100.
The gland 3 is provided with an annular flange, and the annular flange is provided with internal threads; be equipped with the external screw thread on the fixing base 1, pass through threaded connection between gland 3 and the fixing base 1. Like this, can realize the stable connection between gland 3 and the fixing base 1, and make things convenient for the dismantlement of gland 3 to the convenience is to the change of electric tube expander joint 100.
In order to accurately fix the fixing base 1 on the base 200, the base 200 is provided with a first positioning structure 60, and the fixing base 1 is provided with a second positioning structure 70; when the fixing base 1 is connected to the base 200, the first positioning structure 60 cooperates with the second positioning structure 70 to position the relative position between the fixing base 1 and the base 200.
In this embodiment, the first positioning structure 60 is a positioning pin, the positioning pin is connected with the base 200 through a screw thread, and the second positioning structure 70 is a positioning hole; and/or the number of the second positioning structures 70 is multiple, and the multiple second positioning structures 70 are arranged at intervals along the circumferential direction of the second through hole 20; the first positioning structures 60 are plural, and the plural first positioning structures 60 and the plural second positioning structures 70 are disposed in one-to-one correspondence.
In addition, the invention also provides a pipe expander, which comprises a pipe expander joint 100, a base 200 and a pipe expander joint fixing device, wherein the pipe expander joint fixing device is the pipe expander joint fixing device.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the pipe expander joint fixing device is used for mounting a pipe expander joint 100 on a base 200, wherein the pipe expander joint 100 comprises a first shaft section 101, a positioning shaft section 103 and a second shaft section 102 which are sequentially connected, and the diameter of the first shaft section 101 and the diameter of the second shaft section 102 are smaller than the diameter of the positioning shaft section 103; a first through hole 10 for the first shaft segment 101 to pass through is arranged on the base 200; the electric tube expander connects fixing device includes: the fixing base 1 is provided with a first connecting part used for being connected with the base 200; the fixed seat 1 is provided with a second through hole 20; the positioning ring 2 is arranged in the second through hole 20, and a third through hole 30 for the positioning shaft segment 103 to pass through is formed in the positioning ring 2; the gland 3 is detachably arranged on one side of the fixed seat 1 away from the base 200; the gland 3 is provided with a fourth through hole 40 for the second shaft segment 102 to pass through, so as to limit the positioning shaft segment 103 through the gland 3 and the base 200. Like this, when the conditions such as the pipe diameter of the pipe fitting of treating the expand tube change, need to change corresponding expand tube joint 100, at this moment, only need to pull down gland 3, then change the suitable holding ring 2 of size of third through hole 30, can adapt to the expand tube joint 100 of different models, need not carry out holistic dismantlement and change to expand tube joint fixing device, made things convenient for the change operation to expand tube joint 100 effectively, the inconvenient problem of changing the expand tube joint of the expand tube joint fixing device among the prior art has been solved.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A pipe expander joint fixing device is used for mounting a pipe expander joint (100) on a base (200), and is characterized in that the pipe expander joint (100) comprises a first shaft section (101), a positioning shaft section (103) and a second shaft section (102) which are sequentially connected, and the diameter of the first shaft section (101) and the diameter of the second shaft section (102) are smaller than the diameter of the positioning shaft section (103); a first through hole (10) for the first shaft section (101) to pass through is formed in the base (200); the electric tube expander connects fixing device includes:
the fixing seat (1) is provided with a first connecting part used for being connected with the base (200); a second through hole (20) is formed in the fixed seat (1);
the positioning ring (2) is arranged in the second through hole (20), and a third through hole (30) for the positioning shaft segment (103) to pass through is formed in the positioning ring (2);
the gland (3) is detachably arranged on one side, far away from the base (200), of the fixed seat (1); and a fourth through hole (40) for the second shaft section (102) to pass through is formed in the gland (3), so that the positioning shaft section (103) is limited through the gland (3) and the base (200).
2. The joint fixing device of the pipe expander according to claim 1, wherein the positioning rings (2) have different sizes, and the positioning rings (2) of different sizes have the same outer diameter and different inner diameters.
3. The joint fixing device of the pipe expander according to claim 1, wherein the diameter of the second through hole (20) is greater than the outer diameter of the positioning ring (2); the pipe expander joint fixing device comprises an elastic structure (4), wherein at least part of the elastic structure (4) is arranged between the fixing seat (1) and the positioning ring (2) and the fixing seat (1) and the positioning ring (2) are in contact with each other.
4. The pipe expander joint fixing device according to claim 3, wherein the inner wall of the second through hole (20) is provided with a plurality of mounting grooves arranged at intervals in a circumferential direction of the second through hole (20); the elastic structures (4) are multiple, and the elastic structures (4) are embedded in the mounting grooves in a one-to-one correspondence mode.
5. The pipe expander joint fixing device according to claim 4, wherein the inner wall surface of each mounting groove is an arc surface, and the axial direction of each arc surface is parallel to the center line of the second through hole (20); the area of each arc surface is larger than half of the area of the cylindrical surface where the arc surface is located; each elastic structure (4) is a cylindrical structure, and the side surface of each cylindrical structure is matched with the corresponding arc surface.
6. The pipe expander joint fixing device according to claim 4, wherein each mounting groove extends to two opposite end faces of the fixing seat (1), and two ends of each elastic structure (4) are respectively abutted with the base (200) and the gland (3) in a one-to-one correspondence manner.
7. The joint fixing device of the pipe expander according to claim 1, wherein the gland (3) has an annular flange provided with an internal thread; the fixing seat (1) is provided with an external thread, and the gland (3) is connected with the fixing seat (1) through a thread.
8. The pipe expander joint fixing device according to claim 1, wherein a first positioning structure (60) is arranged on the base (200), and a second positioning structure (70) is arranged on the fixed seat (1); when the fixed seat (1) is connected with the base (200), the first positioning structure (60) is matched with the second positioning structure (70) to position the relative position between the fixed seat (1) and the base (200).
9. The joint fixing device of the pipe expander according to claim 8, wherein the first positioning structure (60) is a positioning pin, the positioning pin is in threaded connection with the base (200), and the second positioning structure (70) is a positioning hole; and/or the presence of a gas in the gas,
the number of the second positioning structures (70) is multiple, and the second positioning structures (70) are arranged at intervals along the circumferential direction of the second through hole (20); the number of the first positioning structures (60) is multiple, and the first positioning structures (60) and the second positioning structures (70) are arranged in a one-to-one correspondence mode.
10. A pipe expander, characterized in that it comprises a pipe expander joint (100), a base (200) and a pipe expander joint fixture, wherein the pipe expander joint fixture is a pipe expander joint fixture according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011376258.3A CN112719103B (en) | 2020-11-30 | 2020-11-30 | Pipe expander joint fixing device and pipe expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011376258.3A CN112719103B (en) | 2020-11-30 | 2020-11-30 | Pipe expander joint fixing device and pipe expander |
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| Publication Number | Publication Date |
|---|---|
| CN112719103A true CN112719103A (en) | 2021-04-30 |
| CN112719103B CN112719103B (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011376258.3A Active CN112719103B (en) | 2020-11-30 | 2020-11-30 | Pipe expander joint fixing device and pipe expander |
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| CN (1) | CN112719103B (en) |
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| CN202326775U (en) * | 2011-11-24 | 2012-07-11 | 武汉船用机械有限责任公司 | Bearing fastening device for transmission shaft |
| CN103851090A (en) * | 2012-11-29 | 2014-06-11 | 天津埃柯特测控技术有限公司 | Rapid connection device |
| CN203043268U (en) * | 2013-01-14 | 2013-07-10 | 安徽奥弗医疗设备科技有限公司 | Inflatable drainage tube fixing device |
| CN205715320U (en) * | 2016-05-03 | 2016-11-23 | 中石化石油工程机械有限公司研究院 | The attachment structure of compressor crank shaft and line shaft and extracting tool thereof |
| JP2019184014A (en) * | 2018-04-16 | 2019-10-24 | 株式会社ジェイテクト | Intermediate shaft |
| CN212004240U (en) * | 2020-03-13 | 2020-11-24 | 青岛科尼乐机械设备有限公司 | Shaft end sealing device |
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| CN112719103B (en) | 2022-09-13 |
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