CN204195585U - Steel pipe butt joint tool - Google Patents
Steel pipe butt joint tool Download PDFInfo
- Publication number
- CN204195585U CN204195585U CN201420639713.8U CN201420639713U CN204195585U CN 204195585 U CN204195585 U CN 204195585U CN 201420639713 U CN201420639713 U CN 201420639713U CN 204195585 U CN204195585 U CN 204195585U
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- pressing block
- groove
- block
- pressing
- steel pipe
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- Expired - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 70
- 239000010959 steel Substances 0.000 title claims abstract description 70
- 210000001503 joint Anatomy 0.000 title claims abstract description 46
- 238000003825 pressing Methods 0.000 claims abstract description 172
- 238000001125 extrusion Methods 0.000 claims abstract description 48
- 238000003032 molecular docking Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 12
- 229910052802 copper Inorganic materials 0.000 description 12
- 239000010949 copper Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model provides a steel pipe butting tool. This steel pipe butting tool includes: the first pressing block is provided with a first butt joint block, and the first butt joint block is provided with a first extrusion groove; the first end of the second pressing block is hinged with the first end of the first pressing block, the first extrusion groove is formed in one side, close to the second pressing block, of the first butt joint block, and the second butt joint block is arranged on the second pressing block; and the driving assembly drives the first pressing block and the second pressing block to be attached or separated. Utilize the utility model discloses a steel pipe docking tool can be an organic whole pipe with two steel pipe docks, has reduceed the waste of steel pipe in the long U pipe production engineering greatly.
Description
Technical Field
The utility model relates to a pipe fitting docking equipment technical field, more specifically relates to a steel pipe docking tool.
Background
Can have the extravagant condition when present long U pipe production, a volume copper pipe will waste 2 meters, mainly because scrapping that the pay-off problem leads to, 24 rolls of copper pipes of equipment production every day of the long U pipe of production at present, calculate according to this that 48 meters copper pipes just will be wasted to an equipment every day, because of the factor of long U pipe blanking machine equipment, the tail end of each coil stock all has about 2 meters long can not be used, and the reason is: when about 2 meters is left, the operation stroke of the machine transmission mechanism can not be reached, the machine transmission mechanism can not send the pipe to a required position, the guide pipe is densely packed, the correcting wheel is arranged, and manual feeding can not be carried out manually.
The inventor finds that: in order to reduce waste, the best method is to connect the tail and the head of two coiled materials together, so as to ensure that a machine transmission mechanism can convey the pipe to a required position, and a special tool is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a steel pipe butting tool to solve the extravagant serious problem of production engineering steel pipe of the long U pipe among the prior art.
For solving the technical problem, according to the utility model discloses an aspect provides a steel pipe butting tool, include: the first pressing block is provided with a first butt joint block, and the first butt joint block is provided with a first extrusion groove; the first end of the second pressing block is hinged with the first end of the first pressing block, the first extrusion groove is formed in one side, close to the second pressing block, of the first butt joint block, and the second butt joint block is arranged on the second pressing block; and the driving assembly drives the first pressing block and the second pressing block to be attached or separated.
Furthermore, one side, close to the first pressing block, of the second butt joint block is provided with a second extrusion groove, and when the first pressing block and the second pressing block are attached to each other, the first extrusion groove and the second extrusion groove are buckled to form an extrusion hole.
Furthermore, a first mounting groove is formed in the first side, close to the second pressing block, of the first pressing block, the first mounting groove is recessed from the position, close to the second pressing block, to the position far away from the second pressing block, and the first butt joint block is detachably arranged in the first mounting groove; the first side of second briquetting that is close to first briquetting is provided with the second mounting groove, and the second mounting groove is sunken to the direction of keeping away from first briquetting from being close to first briquetting, and second butt joint piece detachably sets up in the second mounting groove.
Furthermore, the first mounting groove extends along the thickness direction of the first pressing block and penetrates through the first pressing block, a first limiting groove is formed in the groove bottom of the first mounting groove, and the width of the first limiting groove is gradually increased from the position close to the second pressing block to the position far away from the second pressing block; the first butt joint block is provided with a first protrusion matched with the first limiting groove.
Furthermore, the second mounting groove extends along the thickness direction of the second pressing block and penetrates through the second pressing block, a second limiting groove is formed in the groove bottom of the second mounting groove, and the width of the second limiting groove is gradually increased from the position close to the first pressing block to the position far away from the first pressing block; and a second protrusion matched with the second limiting groove is arranged on the second butt joint block.
Furthermore, a plurality of extrusion teeth are arranged at the bottoms of the first extrusion groove and the second extrusion groove.
Further, the steel pipe butting tool further comprises: and the two stopping components are arranged in the first mounting groove along the length direction of the first pressing block and are respectively positioned on two sides of the first butt joint block so as to prevent the steel pipe from sliding down from the first extrusion groove.
Further, the stop assembly includes: the positioning screw penetrates through the first mounting groove from one side of the first pressing block, which is far away from the second pressing block; the stop sleeve is positioned in the first mounting groove and sleeved on the positioning screw; and when the elastic element is in a natural state, the stop sleeve protrudes out of the edge of the first butt joint block, which is close to the second pressing block.
Further, the drive assembly includes: the first operating rod is fixedly connected with the hinged end of the first pressing block and extends along the direction far away from the first pressing block; the second operating rod is fixedly connected with the hinged end of the second pressing block and extends along the direction far away from the second pressing block; when the first operating rod and the second operating rod rotate along the hinged position of the first pressing block and the second pressing block and are close to each other, the first pressing block is attached to the second pressing block; when the first operating rod and the second operating rod are both rotated along the hinged position and are far away from each other, the first pressing block and the second pressing block are separated.
Furthermore, one end of the first operating rod, which is close to the first pressing block, is provided with a first arc-shaped section, and the protruding direction of the first arc-shaped section is far away from the second operating rod; one end of the second operating rod, which is close to the second pressing block, is provided with a second arc-shaped section, and the protruding direction of the second arc-shaped section is far away from the first operating rod.
By applying the technical proposal of the utility model, in the process of butt joint of the steel pipes, because the pipe diameters of the steel pipes are large and small, the steel pipe with smaller pipe diameter can be inserted into the steel pipe with larger pipe diameter, then the overlapped position of the two steel pipes is placed in the first extrusion groove, the first pressing block and the second pressing block are jointed under the action of the driving component, because the first extrusion groove is arranged at one side of the first pressing block close to the second pressing block, when the first pressing block is jointed with the second pressing block, the overlapped part of the two steel pipes is extruded and deformed in the first extrusion groove, when the driving assembly drives the first pressing block and the second pressing block to be separated and takes out the two steel pipes extruded and deformed by the first extrusion groove from the first extrusion groove, because the overlapped part of the two steel pipes is deformed, at the moment, the two steel pipes are connected into an integral pipe and cannot be separated, and the butt joint of the steel pipes is further realized. It is thus clear that utilize the utility model discloses a steel pipe docking tool can be for an organic whole pipe with two steel pipe docks, has reduceed the waste of steel pipe in the long U pipe production engineering greatly.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 schematically illustrates a cross-sectional view of a steel pipe docking tool of the present invention; and
fig. 2 schematically shows a front view of the steel pipe docking tool of the present invention.
Description of reference numerals:
10. a first pressing block; 11. a first mounting groove; 12. a first limit groove; 20. a first butt-joint block; 21. a first extrusion groove; 22. a first protrusion; 30. a second pressing block; 31. a second mounting groove; 32. a second limit groove; 40. a second butting block; 41. a second extrusion groove; 42. a second protrusion; 50. a drive assembly; 51. a first operating lever; 511. a first arcuate segment; 52. a second operating lever; 521. a second arcuate segment; 60. extruding teeth; 70. a stop assembly; 71. a set screw; 72. a stop sleeve; 73. an elastic element.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Referring to fig. 1 and 2, according to an embodiment of the present invention, a steel pipe butting tool is provided. The steel pipe butting tool includes a first pressing block 10, a second pressing block 30 and a driving assembly 50. Wherein, a first butt-joint block 20 is arranged on the first pressing block 10, a first extrusion groove 21 is arranged on the first butt-joint block 20, and the first extrusion groove 21 is arranged on one side of the first butt-joint block 20 close to the second pressing block 30; the first end of the second pressing block 30 is hinged with the first end of the first pressing block 10, and the second pressing block 30 is provided with a second butt joint block 40; the driving assembly 50 drives the first pressing block 10 and the second pressing block 30 to be attached or detached. In the process of butt joint of the steel pipes, the steel pipes with smaller diameters can be inserted into the steel pipes with larger diameters due to the large and small diameters of the steel pipes, then the overlapped position of the two steel pipes is placed in the first extrusion groove 21, the first pressing block 10 is jointed with the second pressing block 30 under the action of the driving component 50, since the first pressing groove 21 is provided at the side of the first pressing piece 10 close to the second pressing piece 30, when the first pressing block 10 and the second pressing block 30 are jointed, the overlapped part of the two steel pipes is extruded and deformed in the first extrusion groove 21, when the two steel pipes extruded and deformed by the first extrusion groove 21 are taken out from the first extrusion groove 21 after the driving assembly 50 drives the first pressing block 10 and the second pressing block 30 to be separated, because the overlapped part of the two steel pipes is deformed, at the moment, the two steel pipes are connected into an integral pipe and cannot be separated, and the butt joint of the steel pipes is further realized. It is thus clear that utilize the utility model discloses a steel pipe docking tool can be for an organic whole pipe with two steel pipe docks, has reduceed the waste of steel pipe in the long U pipe production engineering greatly.
Referring to fig. 1, a second extrusion groove 41 is formed in one side of the second butt-joint block 40 close to the first pressing block 10, when the first pressing block 10 and the second pressing block 30 are attached, the first extrusion groove 21 and the second extrusion groove 41 are buckled to form an extrusion hole, and at the moment, the two steel pipes are attached again and positioned in the extrusion hole, so that the steel pipes are prevented from being damaged due to excessive extrusion deformation.
In order to ensure the stability of the pipe fitting butting position, the bottoms of the first pressing groove 21 and the second pressing groove 41 in the embodiment are provided with a plurality of pressing teeth 60, so that the deformation effect of the pipe fitting butting position can be improved through the pressing teeth 60, and the stability of the pipe fitting butting position is further improved.
Referring to fig. 1 and 2, a first mounting groove 11 is formed in a first side of the first pressing block 10 close to the second pressing block 30, the first mounting groove 11 is recessed from the second pressing block 30 to a direction away from the second pressing block 30, and the first butt block 20 is detachably disposed in the first mounting groove 11; the first side of second briquetting 30 that is close to first briquetting 10 is provided with second mounting groove 31, and second mounting groove 31 is sunken to the direction of keeping away from first briquetting 10 from being close to first briquetting 10, and second butt joint piece 40 detachably sets up in second mounting groove 31, and in the installation, directly install first butt joint piece 20 and second butt joint piece 40 respectively in first mounting groove 11 and second mounting groove 31, simple structure is convenient for realize.
Preferably, the first mounting groove 11 extends along the thickness direction of the first pressing block 10 and penetrates through the first pressing block 10, a first limiting groove 12 is arranged at the bottom of the first mounting groove 11, and the width of the first limiting groove 12 gradually increases from the position close to the second pressing block 30 to the position far away from the second pressing block 30; the first butt-joint block 20 is provided with a first protrusion 22 matched with the first limit groove 12. During the installation, can inlay the first arch 22 of first butt joint piece 20 from the side of first briquetting 10 and establish in first spacing groove 12, under the effect of first spacing groove 12, can prevent that first butt joint piece 20 from dropping out from first mounting groove 11, simple structure is convenient for tear open and trade.
Like the first mounting groove 11, the second mounting groove 31 of the present embodiment also extends in the thickness direction of the second pressing block 30 and penetrates through the second pressing block 30, a second limiting groove 32 is disposed at the groove bottom of the second mounting groove 31, and the width of the second limiting groove 32 gradually increases from the direction close to the first pressing block 10 to the direction away from the first pressing block 10; the second butt-joint block 40 is provided with a second protrusion 42 matched with the second limit groove 32. During installation, the second protrusion 42 of the second butt-joint block 40 can be embedded in the second limiting groove 32 from the side edge of the first pressing block 10, and under the action of the second limiting groove 32, the second butt-joint block 40 can be prevented from falling out of the second mounting groove 31, so that the second butt-joint block is convenient to detach and replace.
Preferably, the first butt-joint block 20 and the second butt-joint block 40 in this embodiment are made of alloy steel after heat treatment, and have high strength and long service life.
Referring again to FIG. 1, the steel pipe docking tool in this embodiment further includes two stop assemblies 70. The two stopping assemblies 70 are arranged in the first installation groove 11 along the length direction of the first pressing block 10 and are respectively positioned at two sides of the first butt joint block 20, and in the process of preventing the steel pipe from being in the first extrusion groove 21, the stopping assemblies 70 can prevent the nested pipe fittings from sliding down from the first extrusion groove 21, so that the efficiency of steel pipe butt joint is improved.
Preferably, the stop assembly 70 includes a set screw 71, a stop sleeve 72, and a resilient member 73. Wherein, the positioning screw 71 is arranged in the first mounting groove 11 from one side of the first pressing block 10 far away from the second pressing block 30; the stop sleeve 72 is positioned in the first mounting groove 11 and sleeved on the positioning screw 71; two ends of the elastic element 73 are respectively fixed on the stopping sleeve 72 and the bottom of the first installation groove 11, when the elastic element 73 is in its natural state, the stopping sleeve 72 protrudes out of the edge of the first butt block 20 close to the second pressing block 30, and the steel pipe is prevented from sliding off from the first extrusion groove 21 in the process of placing the steel pipe into the first extrusion groove 21. More preferably, the elastic element 73 in this embodiment is a spring, which is simple in structure and easy to implement.
In the present invention, the driving assembly 50 includes a first operating lever 51 and a second operating lever 52. The first operating rod 51 is fixedly connected with the hinged end of the first pressing block 10, and the first operating rod 51 extends along the direction far away from the first pressing block 10; the second operating rod 52 is fixedly connected with the hinged end of the second pressing block 30, and the second operating rod 52 extends along the direction far away from the second pressing block 30; when the first operating rod 51 and the second operating rod 52 both rotate along the hinge position of the first pressing block 10 and the second pressing block 30 and approach each other, the first pressing block 10 and the second pressing block 30 are attached to each other, so that the steel pipe placed in the first extrusion groove 21 is deformed to realize the butt joint of the steel pipe; when the first operating rod 51 and the second operating rod 52 are both rotated along the hinge position and are away from each other, the first pressing block 10 and the second pressing block 30 are separated, so that the steel pipe can be conveniently put into the first extrusion groove 21 and taken out of the first extrusion groove 21. The embodiment utilizes the lever principle, and applies force to the first pressing block 10 and the second pressing block 30 by utilizing the action of the first operating rod 51 and the second operating rod 52, thereby being convenient for operation and saving time and labor.
Preferably, one end of the first operating rod 51 close to the first pressing block 10 is provided with a first arc-shaped section 511, and the protruding direction of the first arc-shaped section 511 is far away from the second operating rod 52; the end of the second operating rod 52 close to the second pressing block 30 is provided with a second arc-shaped section 521, and the protruding direction of the second arc-shaped section 521 is far away from the first operating rod 51. Through the arrangement of the first arc-shaped section 511 and the second arc-shaped section 521, the interference phenomenon of the first operating rod 51 and the second operating rod 52 in the process of rotating along the hinge position of the first pressing block 10 and the second pressing block 30 can be prevented, and the first pressing block 10 and the second pressing block 30 can be conveniently driven to be attached or separated.
The process of using the steel pipe butting tool for butting steel pipes is described below by combining the structures of the above embodiments, and the phi 9 long U pipe is taken as an example for explanation:
(1) inserting a section of (about 100MM) scrapped copper pipe with phi 8 into the phi 9 copper pipe tailing on the blanking machine, inserting about 50MM, then putting the double-layer copper pipe into a first extrusion groove 21, wherein the width of a first butt joint block 20 is 9MM, then enabling a first pressing block 10 to be attached to a second pressing block 30, in the closed process, extruding and forming the double-layer copper pipe by extrusion teeth 60 arranged on the first butt joint block 20 and a second butt joint block 40, wherein the forming depth is about 2-3MM, ensuring that a feeding mechanism can smoothly send a new coil material through a guide pipe and a correcting wheel, wherein the butt joint part must bear the pulling force of about 20KG, and otherwise, the feeding mechanism can be pulled off.
(2) The pipe head of a new coil of steel pipe is sleeved on the copper pipe with the diameter phi 8 exposed outside in the last forming, the double-layer copper pipe is placed in the first extrusion groove 21, and then the first pressing block 10 and the second pressing block 30 are attached, so that the tailing of the previous coil and the pipe head of the new coil of steel pipe are skillfully connected together, and the operation stroke of the conveying mechanism of the blanking machine is met.
(3) In order to ensure that the outer diameter phi 9 of the formed copper pipe is unchanged, burrs are not generated in the extrusion process, the copper pipe can pass through a guide pipe of a blanking machine in a smooth manner, a correcting wheel is special, the stop assembly 70 is arranged in the embodiment, and when the first pressing block 10 and the second pressing block 30 are separated, the stop sleeve 72 is in a floating state under the action of spring force, so that the phi 9 copper pipe can be completely sunk into the first extrusion groove 21. In the process of jointing the first pressing block 10 and the second pressing block 30, the stop sleeve 72 is synchronously tightly jointed with the second pressing block 30 and synchronously retracted, so that the steel pipe is always kept in the first extrusion groove 21, and preferably, the first extrusion groove 21 in the embodiment is provided with a semicircular groove with the diameter of 9 mm.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to 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 steel pipe butting tool, characterized by comprising:
the device comprises a first pressing block (10), wherein a first butt block (20) is arranged on the first pressing block (10), and a first extrusion groove (21) is formed in the first butt block (20);
a second pressing block (30), wherein the first end of the second pressing block (30) is hinged with the first end of the first pressing block (10), the first extrusion groove (21) is arranged on one side, close to the second pressing block (30), of the first butt-joint block (20), and a second butt-joint block (40) is arranged on the second pressing block (30);
a driving component (50), wherein the driving component (50) drives the first pressing block (10) and the second pressing block (30) to be jointed or separated.
2. The steel pipe butt joint tool according to claim 1, wherein a side of the second butt joint block (40) close to the first pressing block (10) is provided with a second pressing groove (41), and when the first pressing block (10) and the second pressing block (30) are fitted, the first pressing groove (21) and the second pressing groove (41) are buckled to form a pressing hole.
3. The steel pipe butt joint tool according to claim 2, wherein a first side of the first pressing block (10) close to the second pressing block (30) is provided with a first mounting groove (11), the first mounting groove (11) is recessed from close to the second pressing block (30) to a direction away from the second pressing block (30), and the first butt joint block (20) is detachably disposed in the first mounting groove (11);
the first side of second briquetting (30) that is close to first briquetting (10) is provided with second mounting groove (31), second mounting groove (31) are followed to be close to first briquetting (10) are sunken to the direction of keeping away from first briquetting (10), second butt joint piece (40) detachably sets up in second mounting groove (31).
4. The steel pipe butt joint tool according to claim 3, wherein the first mounting groove (11) extends in a thickness direction of the first pressing block (10) and penetrates through the first pressing block (10), a first limiting groove (12) is arranged at a groove bottom of the first mounting groove (11), and the width of the first limiting groove (12) gradually increases from a position close to the second pressing block (30) to a position far away from the second pressing block (30);
the first butt joint block (20) is provided with a first bulge (22) matched with the first limiting groove (12).
5. The steel pipe butt joint tool according to claim 3, wherein the second mounting groove (31) extends in a thickness direction of the second pressing block (30) and penetrates through the second pressing block (30), a second limiting groove (32) is provided at a groove bottom of the second mounting groove (31), and a width of the second limiting groove (32) gradually increases from a position close to the first pressing block (10) to a position far away from the first pressing block (10);
and a second protrusion (42) matched with the second limiting groove (32) is arranged on the second butt joint block (40).
6. The steel pipe butt tool according to claim 2, wherein the groove bottoms of the first pressing groove (21) and the second pressing groove (41) are each provided with a plurality of pressing teeth (60).
7. The steel pipe docking tool of claim 3, further comprising:
the steel pipe pressing device comprises two stopping components (70), wherein the two stopping components (70) are arranged in the first installation groove (11) along the length direction of the first pressing block (10) and are respectively located on two sides of the first butt joint block (20) to prevent the steel pipe from sliding down from the first extrusion groove (21).
8. The steel pipe docking tool of claim 7, wherein the stop assembly (70) comprises:
the positioning screw (71), the positioning screw (71) is arranged in the first mounting groove (11) from one side of the first pressing block (10) far away from the second pressing block (30) in a penetrating manner;
the stop sleeve (72) is positioned in the first mounting groove (11) and sleeved on the positioning screw (71);
the two ends of the elastic element (73) are respectively fixed to the stopping sleeve (72) and the groove bottom of the first mounting groove (11), and when the elastic element (73) is in a natural state, the stopping sleeve (72) protrudes out of the edge, close to the second pressing block (30), of the first butt joint block (20).
9. The steel pipe docking tool of claim 1, wherein the drive assembly (50) comprises:
the first operating rod (51), the first operating rod (51) is fixedly connected with the hinged end of the first pressing block (10), and the first operating rod (51) extends along the direction far away from the first pressing block (10);
the second operating rod (52), the second operating rod (52) is fixedly connected with the hinged end of the second pressing block (30), and the second operating rod (52) extends along the direction far away from the second pressing block (30); wherein,
when the first operating rod (51) and the second operating rod (52) rotate along the hinged position of the first pressing block (10) and the second pressing block (30) and are close to each other, the first pressing block (10) is attached to the second pressing block (30);
when the first operating rod (51) and the second operating rod (52) rotate along the hinge position and are far away from each other, the first pressing block (10) and the second pressing block (30) are separated.
10. The steel pipe butt joint tool according to claim 9, wherein one end of the first operating rod (51) close to the first pressing block (10) has a first arc-shaped section (511), and the first arc-shaped section (511) protrudes away from the second operating rod (52);
one end, close to the second pressing block (30), of the second operating rod (52) is provided with a second arc-shaped section (521), and the protruding direction of the second arc-shaped section (521) is far away from the first operating rod (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639713.8U CN204195585U (en) | 2014-10-29 | 2014-10-29 | Steel pipe butt joint tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639713.8U CN204195585U (en) | 2014-10-29 | 2014-10-29 | Steel pipe butt joint tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204195585U true CN204195585U (en) | 2015-03-11 |
Family
ID=52653584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420639713.8U Expired - Lifetime CN204195585U (en) | 2014-10-29 | 2014-10-29 | Steel pipe butt joint tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204195585U (en) |
-
2014
- 2014-10-29 CN CN201420639713.8U patent/CN204195585U/en not_active Expired - Lifetime
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |