CN112975239A - Welding fixing support for oval pipe - Google Patents
Welding fixing support for oval pipe Download PDFInfo
- Publication number
- CN112975239A CN112975239A CN202110148247.8A CN202110148247A CN112975239A CN 112975239 A CN112975239 A CN 112975239A CN 202110148247 A CN202110148247 A CN 202110148247A CN 112975239 A CN112975239 A CN 112975239A
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- Prior art keywords
- oval
- fixing
- ring frame
- fixed
- outer ring
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- 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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- 238000003466 welding Methods 0.000 title claims abstract description 49
- 230000008093 supporting effect Effects 0.000 claims abstract description 71
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a welding and fixing bracket for an elliptical tube, which is characterized in that a cylindrical surface formed by a rotating roller is used for guiding and supporting a long shaft of the elliptical tube, a fixed supporting plate is matched for supporting a short shaft of the elliptical tube, meanwhile, the rotating shaft and the hydraulic rod are matched to drive the fixed supporting plate to rotate, so that the elliptical tube can be stably and rotatably welded on the fixed bracket, it is characterized in that two coaxial outer ring frames are arranged on a base through a supporting upright rod, the outer ring frames are composed of two coaxial circular rings, a plurality of roller frames are arranged on the inner walls of the circular rings at equal angles along the circumferential direction, the roller frames on the two circular rings are opposite one by one, and the rotating rollers are arranged between the two opposite roller frames, the rotating rollers on the outer ring frames are matched to form a cylindrical surface, one ends of the connecting rods are annularly arranged at one end of one of the outer ring frames, and the other ends of the connecting rods extend along the radial direction of the outer ring frame and then bend and extend towards the other end of one of the outer ring frames.
Description
Technical Field
The invention discloses a welding and fixing support for an oval pipe, relates to a support capable of fixing the oval pipe during welding, and belongs to the technical field of machining equipment. In particular to form the major axis of cylinder face oval pipe through changeing the roller and lead to supporting, cooperate fixed fagging to support the minor axis of oval pipe, pivot and hydraulic stem cooperate to drive fixed fagging and rotate simultaneously to this can make oval pipe carry out the fixed bolster of stabilizing spin welding.
Background
Present machine equipment structure is more and more complicated, standard part is difficult to satisfy its demand under some special circumstances, the application market of non-standard part increases gradually, traditionally when welding the pipe, in order to weld it conveniently, can make the welding jig of pipe into the structure that can drive the pipe and carry out the rotation usually, make welding personnel need not to encircle the welding round the pipe, but this kind of pipe anchor clamps are when using to the oval pipe of welding, because the special oval cross-section of oval pipe, it is difficult to fixed firm its pipe wall of centre gripping of welding jig to drive it and rotate to get, oval pipe produces off-centre and rocks easily during the rotation, welding personnel need handheld welder to encircle the removal round the welding department when leading to welding, it is comparatively inconvenient to weld.
The publication number CN209094835U discloses a novel oval tube welding and clamping device, which is characterized by comprising a fixed positioning mechanism, an upper positioning assembly and a welding base; the welding base is in a concave shape, two ends of the welding base are provided with stand columns, and the cross sections of the stand columns are rectangular; the upper surface of stand sets up the rectangular plate, fixed position mechanism goes up the location sub-assembly and respectively has two sets ofly, sets up respectively in two stand upper ends of welding base, and this welding jig needs personnel to carry out the annular around its butt joint department and removes the welding when using the welding, and the welding mode is comparatively inconvenient.
Notice No. CN109175758A discloses this pipe welding equipment includes frame, work platform and welding robot, still includes pipe rotary mechanism and pipe bearing structure, work platform sets up in the frame, pipe rotary mechanism and pipe bearing structure arrange on work platform along same straight line, welding robot sets up in work platform one side, pipe rotary mechanism is used for pressing from both sides tight pipe tip and makes the pipe make rotary motion, welding robot and pipe rotary mechanism keep linkage operation, and the three-jaw chuck among the device revolution mechanic is difficult to stable fixes the centre gripping to oval tube, can only carry out effectual fixed rotatory auxiliary welding to the pipe, can't be suitable for to oval tube.
Disclosure of Invention
In order to improve the situation, the welding and fixing support for the oval tube, provided by the invention, is a fixing support which can guide and support the long axis of the oval tube by forming a cylindrical surface through a rotating roller, support the short axis of the oval tube by matching with a fixing support plate, and drive the fixing support plate to rotate by matching a rotating shaft and a hydraulic rod, so that the oval tube can be stably and rotatably welded.
The invention discloses a welding and fixing bracket for an oval tube, which is realized by the following steps: the invention relates to a welding and fixing bracket for an oval tube, which consists of an outer supporting device and an inner supporting device, wherein the outer ring bracket of the outer supporting device, roller brackets, rotating rollers, supporting upright rods and a base are arranged on the base through the supporting upright rods, the outer ring bracket consists of two coaxial rings, a plurality of roller brackets are arranged on the inner wall of each ring at equal angles along the circumferential direction, the roller brackets on the two rings are opposite one to one, the rotating rollers are arranged between the two opposite roller brackets, the rotating rollers on the outer ring bracket are matched to form a cylindrical surface, the inner ring bracket of the inner supporting device, connecting rods, a fixing supporting ring, a fixing supporting plate, a hydraulic rod, a rotating shaft, a rocker, an inner supporting frame, a sliding column, a connecting sleeve, a fixing seat, a spring and a transverse plate are arranged on one end of one of the outer ring bracket, one end of each connecting rod extends along the radial direction of the outer ring bracket, and then bending and extending towards the other end of one of the outer ring frames, wherein the fixed support ring consists of a connecting ring and a support ring, one side of the connecting ring is arranged at the other end of the connecting rods, the support ring is arranged at the other side of the connecting ring and is positioned at the inner ring of the connecting ring, one end of the inner ring frame is sleeved on the support ring, the other end of the inner ring frame extends towards the direction of the other outer ring frame and is positioned between the two outer ring frames, the inner ring frame and the outer ring frames are coaxial, the two inner support frames are arranged in the inner ring frame and are respectively positioned at the two ends of the inner ring frame, the two inner support frames are connected through a fixed sleeve, the inner ring frame is provided with two abdicating grooves which are opposite and both penetrate through the two ends of the inner ring frame along the axial direction of the inner ring frame, the fixed support plate is arranged in the abdicating grooves, the fixed support plate is an arc-, and are respectively positioned at both sides of the fixed supporting plate, the sliding columns in the same group are equidistantly distributed from one end of the fixed supporting plate to the other end, one end of each sliding column penetrates through the fixed supporting plate and is arranged on the convex surface of the fixed supporting plate, one end of each sliding column is provided with a top column, a friction pad is arranged on the top column, a transverse plate is arranged at the other end of the sliding column in the same group, a spring is sleeved on the sliding column and is positioned between the transverse plate and the fixed supporting plate, one ends of two hydraulic rods are arranged on the concave surface of the fixed supporting plate and are respectively positioned at both ends of the fixed supporting plate, the two hydraulic rods are positioned between the two groups of sliding columns, the other ends of the two hydraulic rods are arranged on a fixed sleeve, the fixed seat is vertically arranged on a base and is close to a connecting rod, the rotating shaft is arranged on the end part of the fixed seat through a bearing and penetrates through the fixed seat, the, the connecting sleeve is arranged on the other end of the rotating shaft, and the rocker is arranged on the connecting sleeve.
Has the beneficial effects.
The elliptical tube can be driven to rotate stably, rotation of the elliptical tube can be guaranteed to be stable, welding work of personnel is facilitated, and welding efficiency is improved.
And secondly, the fixed supporting plate with the plurality of groups of sliding columns can be better matched with the inner arc surface of the elliptical tube, and the supporting effect is better.
Thirdly, the structure is simple, convenient and practical.
Fourthly, the cost is low, and the popularization is convenient.
Drawings
FIG. 1 is a schematic structural view of a welding and fixing bracket for an oval tube according to the present invention;
FIG. 2 is a perspective view of a welding fixture of the present invention for oval tubes;
FIG. 3 is a schematic structural view of an inner ring frame of a welding and fixing bracket for an oval tube according to the present invention;
FIG. 4 is a perspective view of a support plate for fixing the welding fixing bracket for the oval tube according to the present invention.
In the attached drawings
Wherein the method comprises the following steps: the roller support comprises an outer ring frame (1), a roller frame (2), a rotating roller (3), an elliptical tube (4), an inner ring frame (5), a connecting rod (6), a fixed supporting ring (7), a supporting vertical rod (8), a base (9), a fixed supporting plate (10), a hydraulic rod (11), a rotating shaft (12), a rocker (13), an inner supporting frame (14), a sliding column (15), a connecting sleeve (16), a fixed sleeve (17), a fixed seat (18), a spring (19) and a transverse plate (20).
The specific implementation mode is as follows:
the invention discloses a welding and fixing support for an oval tube, which consists of an outer support device and an inner support device, wherein the outer support device comprises an outer ring support (1), roller frames (2), rotating rollers (3), a support upright rod (8) and a base (9), the two coaxial outer ring supports (1) are arranged on the base (9) through the support upright rod (8), the outer ring support (1) consists of two coaxial circular rings, a plurality of roller frames (2) are arranged on the inner wall of each circular ring along the circumferential direction at equal angles, the roller frames (2) on the two circular rings are opposite one by one, the rotating rollers (3) are arranged between the two opposite roller frames (2), the rotating rollers (3) on the outer ring support (1) are matched to form a cylindrical surface, and the inner support device inner ring support (5), a connecting rod (6), a fixing support ring (7), a fixing support plate (10), a hydraulic rod (11), a rotating shaft (12) and the inner support device is arranged on the inner support, The rocker (13), the inner support frame (14), the sliding columns (15), the connecting sleeves (16), the fixing sleeves (17), the fixing seats (18), the springs (19) and the transverse plates (20), wherein one end of each of the connecting rods (6) is annularly arranged at one end of one of the outer ring frames (1), the other ends of the connecting rods (6) extend along the radial direction of the outer ring frames (1) and then bend and extend towards the other end of one of the outer ring frames (1), the fixing support ring (7) consists of a connecting ring and a bearing ring, one side of the connecting ring is arranged at the other end of each of the connecting rods (6), the bearing ring is arranged at the other side of the connecting ring and is positioned at the inner ring of the connecting ring, one end of the inner ring frame (5) is sleeved on the bearing ring, the other end of the inner ring frame (5) extends towards the other outer ring frame (1) and is positioned between the two outer ring frames (1), the inner ring frame (5) and the outer ring frames, the two inner support frames (14) are arranged in the inner ring frame (5) and are respectively positioned at two ends of the inner ring frame (5), the two inner support frames (14) are connected through a fixed sleeve (17), two abdicating grooves are formed in the inner ring frame (5), the two abdicating grooves are opposite and respectively penetrate through two ends of the inner ring frame (5) along the axial direction of the inner ring frame (5), the fixed support plates (10) are arranged in the abdicating grooves, the fixed support plates (10) are arc-shaped plates and are matched with the inner ring frame (5) to form a circumferential surface, two groups of sliding columns (15) are arranged on the concave surfaces of the fixed support plates (10) and are respectively positioned at two sides of the fixed support plates (10), the sliding columns (15) are distributed at equal intervals from one end of the fixed support plates (10) to the other end, one end of each sliding column (15) penetrates through the fixed support plates (10) and is arranged on the convex surfaces of the fixed support plates (10), and a top column is, the friction pad is arranged on the top column, the transverse plate (20) is arranged at the other end of the sliding columns (15) in the same group, the spring (19) is sleeved on the sliding columns (15) and positioned between the transverse plate (20) and the fixed supporting plate (10), one end of each of the two hydraulic rods (11) is arranged on the concave surface of the fixed supporting plate (10) and respectively positioned at the two ends of the fixed supporting plate (10), the two hydraulic rods (11) are positioned between the two groups of sliding columns (15), the other ends of the two hydraulic rods (11) are arranged on the fixed sleeve (17), the fixed base (18) is vertically arranged on the base (9) and is close to the connecting rod (6), the rotating shaft (12) is arranged on the end part of the fixed base (18) through a bearing and penetrates through the fixed base (18), the rotating shaft (12) and the inner ring frame (5) are coaxial, one end of the rotating shaft (12) penetrates through the fixed supporting ring (7) and extends to the inner ring frame (5) and, the connecting sleeve (16) is arranged at the other end of the rotating shaft (12), and the rocker (13) is arranged on the connecting sleeve (16).
When the device is used, two elliptical tubes (4) to be welded penetrate into the two outer ring frames (1) and are sleeved on the inner ring frame (5), the joint between the two elliptical tubes (4) to be welded is positioned on the inner ring frame (5) and is positioned between the two outer ring frames (1), a plurality of rotating rollers (3) on the outer ring frames (1) are matched to form a cylindrical surface, the inner diameter of the cylindrical surface is equal to the outer diameter of the long shaft of the two elliptical tubes (4), so that the cylindrical surface is tangent to the long shafts of the two elliptical tubes (4), the long shaft of the joint between the two elliptical tubes (4) is supported, the outer diameter of the inner ring frame (5) is equal to the inner diameter of the short shafts of the two elliptical tubes (4), the inner ring frame (5) is tangent to the short shafts of the two elliptical tubes (4), the hydraulic rod (11) is started, the hydraulic rod (11) pushes the fixed supporting plate (10) to support the short shaft of the joint of the two elliptical tubes (4), then manually rotating the crank handle to enable the rotating shaft (12) to rotate, wherein the rotating shaft (12) rotates to drive the fixed sleeve (17) at one end to rotate, so as to drive the hydraulic rod (11) on the fixed sleeve (17) to rotate, the hydraulic rod (11) drives the fixed supporting plate (10) to rotate, so as to drive the joint of the two elliptical tubes (4) to perform spin welding, and at the moment, the inner diameter of the cylindrical surface formed by the outer ring frame (1) guides the long axis of the elliptical tube (4), so that the elliptical tube (4) is prevented from offsetting;
the design that the plurality of rotating rollers (3) on the outer ring frame (1) are matched to form a cylindrical surface can enable the inner diameter of the cylindrical surface to be correspondingly tangent to the long axis of the ellipse, so that the long axis of the ellipse is supported, the elliptical tube (4) can be guided while the elliptical tube (4) rotates, stable rotation driving is formed, and the elliptical tube can be ensured to rotate stably;
the fixed supporting plate (10) is an arc-shaped plate and is matched with the inner ring frame (5) to form a circumferential surface, so that the shape of the fixed supporting plate (10) can be matched with that of the elliptical tube (4), the supporting area of the short shaft of the elliptical tube (4) can be enlarged, the fixed supporting plate can be matched with the inner ring frame (5) to be spliced, the elliptical tube (4) can be abducted, and the use is convenient and fast;
the sliding columns (15) in the same group are equidistantly distributed from one end of the fixed supporting plate (10) to the other end, the elliptic tube (4) can be further supported by the stress of the sliding columns (15) matched with the springs (19) of the springs (19), the friction force between the fixed supporting plate (10) and the elliptic tube (4) is increased, and the elliptic tube (4) is prevented from sliding;
a top column is arranged at one end of the sliding column (15), and a friction pad is arranged on the top column, so that the friction force of the sliding column (15) can be further improved by matching the top column with the friction pad on the top column, and the elliptical tube (4) is stably grabbed and fixed;
the two hydraulic rods (11) are arranged between the two groups of sliding columns (15), so that when the hydraulic rods (11) support the fixed supporting plate (10), the supporting force can be applied to the middle part of the fixed supporting plate (10), the uniform stress of the fixed supporting plate (10) is ensured, and the uniform stress of the short shaft of the elliptical tube (4) is ensured;
the fixed supporting plate (10) is matched with the hydraulic rod (11), the short shaft of the elliptical tube (4) is supported, the fixed supporting plate (10) can be supported through the extension and retraction of the hydraulic rod (11), so that the short shaft supporting device can be adapted to the short shafts of the elliptical tubes (4) with different lengths, and the application range is wider;
the rotating roller (3) is matched with the fixed supporting plate (10), the design of supporting and guiding the short shaft of the elliptical tube (4) can be realized while the long shaft of the elliptical tube (4) is supported and guided, and extrusion forces can be respectively applied to the two ends of the long shaft and the two ends of the short shaft of the elliptical tube (4) on the elliptical tube (4), so that the gravity center of the elliptical tube (4) is ensured to be positioned on the axis of the elliptical tube (4), and the elliptical tube (4) is ensured to be stable and avoid deviation;
the rotating shaft (12) is matched with the hydraulic rod (11) to drive the fixed supporting plate (10) to rotate, so that the fixed supporting plate (10) can support the short shaft of the elliptical tube (4) and drive the elliptical tube (4) to rotate at the same time, and a cylinder formed by the rotating rollers (3) on the outer ring frame (1) is matched to guide the elliptical tube (4), so that stable rotation driving is formed on the elliptical tube (4), and the elliptical tube is ensured to rotate stably;
reach and form the cylinder through changeing roller (3) and lead to propping to the major axis of oval pipe (4), cooperate fixed fagging (10) to prop to the minor axis of oval pipe (4), pivot (12) and hydraulic stem (11) cooperate to drive fixed fagging (10) and rotate simultaneously to this can make oval pipe (4) carry out the purpose of stabilizing spin welding.
Claims (9)
1. The utility model provides an oval effective welding fixed bolster which characterized by: the roller bearing comprises an outer supporting device and an inner supporting device, wherein the outer ring frame of the outer supporting device, roller frames, rotating rollers, supporting vertical rods and a base are arranged on the outer supporting device, the two coaxial outer ring frames are arranged on the base through the supporting vertical rods, the outer ring frame comprises two coaxial circular rings, a plurality of roller frames are arranged on the inner wall of each circular ring at equal angles along the circumferential direction, the roller frames on the two circular rings are opposite one to one, the rotating rollers are arranged between the two opposite roller frames, the inner supporting device inner ring frame, a connecting rod, a fixed supporting ring, a fixed supporting plate, a hydraulic rod, a rotating shaft, a rocker, an inner supporting frame, a sliding column, a connecting sleeve, a fixed seat, a spring and a transverse plate are arranged between the two opposite roller frames, one end of a plurality of connecting rods is arranged at one end of one outer ring frame, the other ends of the plurality of connecting rods extend along the radial direction of the outer ring, one side of the connecting ring is arranged at the other end of the connecting rods, the bearing ring is arranged at the other side of the connecting ring and is positioned at the inner ring of the connecting ring, one end of the inner ring frame is sleeved on the bearing ring, the other end of the inner ring frame extends towards the direction of the other outer ring frame and is positioned between the two outer ring frames, the inner ring frame and the outer ring frames are coaxial, the two inner supporting frames are arranged inside the inner ring frame and are respectively positioned at the two ends of the inner ring frame, the two inner supporting frames are connected through a fixing sleeve, two abdicating grooves are formed in the inner ring frame and are opposite and respectively penetrate through the two ends of the inner ring frame along the axial direction of the inner ring frame, the fixing supporting plates are arranged inside the abdicating grooves, the two groups of sliding columns are arranged on the concave surfaces of the fixing supporting plates and are respectively positioned on the two sides of the fixing supporting plates, one end of the sliding columns penetrates through the fixing supporting plates, and be located between diaphragm and the fixed fagging, on the concave surface of fixed fagging was arranged in to the one end of two hydraulic stems, and be located the both ends of fixed fagging respectively, two the hydraulic stem is located between two sets of travelers, and the other end of two hydraulic stems is arranged in the fixed sheathe in, and the fixing base is arranged in perpendicularly on the base, and is close to the connecting rod, and the pivot is arranged in on the tip of fixing base through the bearing, and runs through the fixing base, and pivot and interior ring frame are coaxial, and the one end of pivot is passed fixed the inside that the braced ring extended to interior ring frame, and fixed the inside of fixing the cover of arranging in.
2. The welding and fixing bracket for the oval tube as claimed in claim 1, wherein the plurality of rotating rollers on the outer ring frame are matched to form a cylindrical surface, so that the inner diameter of the cylindrical surface is tangent to the major axis of the oval, the major axis of the oval is supported, the oval tube can be guided while the oval tube rotates, a stable rotation drive is formed, and the oval tube can be ensured to rotate stably.
3. The welding fixture bracket for oval tubes as set forth in claim 1, wherein said fixing stay is an arc-shaped plate and cooperates with said inner ring frame to form a circumferential surface.
4. The welding fixing bracket for oval tubes according to claim 1, wherein said sliding columns of the same group are equidistantly distributed from one end of the fixing strut to the other end.
5. The welded fastening bracket for oval tubes as set forth in claim 1, wherein said slide post has a top post disposed at one end thereof.
6. The welding fixture bracket for oval tubes as claimed in claim 1, wherein said top post has a friction pad disposed thereon.
7. The welding fixing bracket for the oval tube according to claim 4, wherein the fixing support plate is matched with the hydraulic rod, and the design of supporting the short axis of the oval tube can support the fixing support plate through the expansion of the hydraulic rod, so that the fixing support plate can be adapted to the short axes of the oval tubes with different lengths.
8. The welding and fixing bracket for the oval tube according to claim 1, wherein the rotating roller and the fixing supporting plate are matched, so that the long axis of the oval tube can be supported and guided, and meanwhile, the short axis of the oval tube can be supported and guided, and extrusion forces can be respectively applied to two ends of the long axis and two ends of the short axis of the oval tube, so that the center of gravity of the oval tube is located on the axis of the oval tube, and the oval tube is ensured to be stable and prevented from shifting.
9. The welding and fixing support for the oval tube according to claim 1, wherein the rotation shaft is matched with the hydraulic rod to drive the fixed supporting plate to rotate, so that the fixed supporting plate can support the short axis of the oval tube and drive the oval tube to rotate, and a cylinder formed by the rotating rollers on the outer ring frame is matched to guide the oval tube, so that the oval tube is stably driven to rotate, and the oval tube can be stably rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110148247.8A CN112975239A (en) | 2021-02-03 | 2021-02-03 | Welding fixing support for oval pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110148247.8A CN112975239A (en) | 2021-02-03 | 2021-02-03 | Welding fixing support for oval pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112975239A true CN112975239A (en) | 2021-06-18 |
Family
ID=76346376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110148247.8A Pending CN112975239A (en) | 2021-02-03 | 2021-02-03 | Welding fixing support for oval pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112975239A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894493A (en) * | 2021-10-21 | 2022-01-07 | 沈阳汇博热能设备有限公司 | Expansion device for long circular expansion joint ring weld joint lap joint |
-
2021
- 2021-02-03 CN CN202110148247.8A patent/CN112975239A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894493A (en) * | 2021-10-21 | 2022-01-07 | 沈阳汇博热能设备有限公司 | Expansion device for long circular expansion joint ring weld joint lap joint |
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