CN204584638U - A kind of internal clamp - Google Patents
A kind of internal clamp Download PDFInfo
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- CN204584638U CN204584638U CN201520134031.6U CN201520134031U CN204584638U CN 204584638 U CN204584638 U CN 204584638U CN 201520134031 U CN201520134031 U CN 201520134031U CN 204584638 U CN204584638 U CN 204584638U
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- hydraulic cylinder
- tension mechanism
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- executive component
- cylinder
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Abstract
The utility model relates to pipeline construction equipment, proposes a kind of internal clamp.The tension mechanism I (33) of a kind of internal clamp proposed axially is being disposed adjacent with tension mechanism II (34), tension mechanism III (35), tension mechanism II (34), the corresponding same install pipeline of tension mechanism III (35), and by same Driven by Hydraulic Cylinder; In order to the executive component III (19) that promotes the action of tension mechanism III pressure head with in order to drive the executive component II (16) of tension mechanism II pressure head action to be arranged side by side at axial direction, and be structure as a whole or connect as one; For drive tension mechanism II (34), tension mechanism III (35) action hydraulic cylinder consistent with the traffic direction of the hydraulic cylinder for driving tension mechanism I (33) action and for being nested with hydraulic cylinder structure inside and outside setting.Butt welding needs when the utility model meets that experiment is commented in weldering, the process pipelines etc. of equipment welds operating mode.
Description
Technical field
The utility model relates to pipeline construction equipment, is specifically related to a kind of internal clamp, is especially adapted to weld the welding operating mode of the short tube such as process pipelines joint commenting experiment, equipment.
Background technology
Internal clamp is used for two pipelines counterpart before welding, the internal clamp used in prior art mostly is long joint internal clamp, and described internal clamp includes forebay, tension mechanism I, tension mechanism II, afer bay, driving mechanism, air accumulator, rear walking wheel, front walking wheel and control system; Rear walking wheel is positioned at same pipeline with tension mechanism II, tension mechanism II props up the aligning coordinating common finishing equipment and pipeline with rear walking wheel; Due to structural design and the arrangement of existing internal clamp, make its axial length longer, the needs that experiment is commented in weldering, the process pipelines etc. of equipment welds operating mode can not be met.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model proposes a kind of internal clamp.
The utility model adopts following technical scheme for completing above-mentioned purpose:
A kind of internal clamp, described internal clamp includes frame, tension mechanism I, tension mechanism II, tension mechanism III, road wheel I, road wheel II and control system; Described tension mechanism I, tension mechanism II, tension mechanism III are coaxially arranged; Described tension mechanism II, tension mechanism III are one group, and corresponding same install pipeline; Described tension mechanism II, tension mechanism III are by the linkage structure of same Driven by Hydraulic Cylinder; In order to the executive component III that promotes the action of tension mechanism III pressure head with in order to drive the executive component II of tension mechanism II pressure head action to be arranged side by side at axial direction, and be structure as a whole or connect as one; For drive tension mechanism II, tension mechanism III action hydraulic cylinder, for driving the traffic direction of the hydraulic cylinder of tension mechanism I action unanimously and for being nested with hydraulic cylinder structure inside and outside setting; Described tension mechanism I is axially being disposed adjacent with tension mechanism II, tension mechanism III, described tension mechanism II, tension mechanism III are positioned at the side of tension mechanism I, the described inside and outside hydraulic cylinder structure being nested with setting is arranged on the opposite side of described tension mechanism I, and the corresponding install pipeline of described tension mechanism II, tension mechanism III; Or, described tension mechanism I is positioned at the side of tension mechanism II, tension mechanism III, the described inside and outside hydraulic cylinder structure being nested with setting is arranged on the opposite side of described tension mechanism II, tension mechanism III, is nested with the described inside and outside hydraulic cylinder structure of setting and described tension mechanism II, tension mechanism III to a same install pipeline.
The described inside and outside hydraulic cylinder structure being nested with setting includes interior hydraulic cylinder and outer hydraulic cylinder; Described interior hydraulic cylinder has the cylinder sleeve of piston and interior hydraulic cylinder; The oil input channel II be communicated with the backhaul oil pocket of interior hydraulic cylinder is arranged on the cylinder bore wall of interior hydraulic cylinder; The piston of outer hydraulic cylinder is annular, and on the cylinder sleeve being positioned at hydraulic cylinder and mutually internally the cylinder sleeve of hydraulic cylinder is fixed; The two ends of outer Barrel of Hydraulic Cylinders internal face all have inwardly protruded annular boss: annular boss I, annular boss II; The piston of described outer hydraulic cylinder is between annular boss I and annular boss II; Cavity between the piston of described annular boss I and outer Barrel of Hydraulic Cylinders internal face, the cylinder sleeve of interior hydraulic cylinder, outer hydraulic cylinder forms the backhaul oil pocket of outer hydraulic cylinder; Cavity between the piston of described annular boss II and outer Barrel of Hydraulic Cylinders internal face, the cylinder sleeve of interior hydraulic cylinder, outer hydraulic cylinder forms the process oil pocket of outer hydraulic cylinder; The oil input channel IV of the oil input channel III of the described backhaul oil pocket setting of corresponding outer hydraulic cylinder, the described process oil pocket setting of corresponding outer hydraulic cylinder is all arranged on the cylinder bore wall of interior hydraulic cylinder.
The described inside and outside hydraulic cylinder structure being nested with setting includes interior hydraulic cylinder and outer hydraulic cylinder; The described tension mechanism II described in interior hydraulic cylinder correspondence, tension mechanism III are arranged; The described tension mechanism I described in outer hydraulic cylinder correspondence is arranged.
The described inside and outside hydraulic cylinder structure being nested with setting includes interior hydraulic cylinder and outer hydraulic cylinder; The described tension mechanism I described in interior hydraulic cylinder correspondence is arranged; The described tension mechanism II described in outer hydraulic cylinder correspondence, tension mechanism III are arranged.
The described inside and outside hydraulic cylinder structure being nested with setting includes interior hydraulic cylinder and outer hydraulic cylinder; Described interior hydraulic cylinder has the cylinder sleeve of piston and interior hydraulic cylinder; The piston rod of interior hydraulic cylinder and the executive component II of described tension mechanism II, the executive component III of tension mechanism III are structure as a whole or connect as one; The executive component I of described outer Barrel of Hydraulic Cylinders and tension mechanism I is structure as a whole or connects as one.
The described inside and outside hydraulic cylinder structure being nested with setting includes interior hydraulic cylinder and outer hydraulic cylinder; Described interior hydraulic cylinder has the cylinder sleeve of piston and interior hydraulic cylinder; The piston rod of interior hydraulic cylinder and the executive component I of described tension mechanism I are structure as a whole or connect as one; The executive component II of described outer Barrel of Hydraulic Cylinders and tension mechanism II, the executive component III of tension mechanism III are structure as a whole or connect as one.
The executive component I of described tension mechanism I is block or the connecting rod of rising.
The executive component II of described tension mechanism II, the executive component III of tension mechanism III are block or the connecting rod of rising.
A kind of internal clamp that the utility model proposes, the executive component II of tension mechanism II, the executive component III of tension mechanism III adopt the integrative-structure be arranged side by side in the axial direction, and by same Driven by Hydraulic Cylinder; For drive tension mechanism II, tension mechanism III action hydraulic cylinder with for driving the hydraulic cylinder of tension mechanism I action to be nested with hydraulic cylinder structure inside and outside setting, be applicable to tensioner or the aligning of short tube joint, meet butt welding needs when experiment is commented in weldering, the process pipelines etc. of equipment welds operating mode; Be nested with the structural design of the inside and outside hydraulic cylinder structure of setting in addition, substantially reduce again the axial length of internal clamp, reduce the size of internal clamp; The utility model adopts hydraulic pressure to be power source, there is better school circle effect, the oil input channel IV of the oil input channel II of interior hydraulic cylinder backhaul oil pocket, the oil input channel III of outer hydraulic cylinder backhaul oil pocket, outer hydraulic cylinder process oil pocket is all arranged on the cylinder bore wall of interior hydraulic cylinder, namely the loop of hydraulic cylinder adopts built-in hydraulic loop, save space, and hydraulic circuit is more reliable and secure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of executive component II and executive component III in Fig. 1.
Fig. 3 is the structural representation of the utility model embodiment 2.
Fig. 4 is the structural representation of the utility model embodiment 3.
Fig. 5 is the structural representation of the utility model embodiment 4.
Fig. 6 is the structural representation of the utility model China and foreign countries cylinder bottoms of hydraulic cylinders.
Fig. 7 is the structural representation of the utility model China and foreign countries Barrel of Hydraulic Cylinders.
Fig. 8 is the structural representation of the utility model China and foreign countries hydraulic cylinder cylinder cap.
Fig. 9 is the structural representation of the utility model China and foreign countries hydraulic cylinder cylinder sleeve.
In figure: 1, road wheel I, 2, draw ring, 3, base, 4, outer cover, 5, cylinder bottom, 6, cylinder body, 7, tailstock, 8, the cylinder sleeve of interior hydraulic cylinder, 9, cylinder cap, 10, piston rod, 11, distribution plate, 12, adapter sleeve, 15, executive component I, 16, executive component II, 17, end cap, 18, push rod, 19, executive component III, 22, pressure head, 25, road wheel II, 26, oil input channel I, 27, oil input channel II, 28, oil input channel III, 29, oil input channel IV, 30, annular boss I, 31, annular boss II, 32, the piston of outer hydraulic cylinder, 33, tension mechanism I, 34, tension mechanism II, 35, tension mechanism III.
Detailed description of the invention
With specific embodiment, the utility model is illustrated by reference to the accompanying drawings:
As shown in Figure 1, a kind of short tube joint internal clamp, described internal clamp includes frame, tension mechanism I 33, tension mechanism II 34, tension mechanism III 35, road wheel II 25 and road wheel I 1; Described frame includes base 3 and outer cover 4; Described base 3 being provided with draw ring 2, for hanging rope traction equipment in welding process, being threaded on the base 3, also directly can weld or make overall structure with base 3; Described tension mechanism I 33, tension mechanism II 34, tension mechanism III 35 coaxially arrange and are axially being disposed adjacent; Described tension mechanism II 34, tension mechanism III 35 are one group, are positioned at same pipeline during construction; Described tension mechanism II 34, tension mechanism III 35 are by the linkage structure of same Driven by Hydraulic Cylinder; Composition graphs 2, in order to the executive component III 19 that promotes the action of tension mechanism III 35 pressure head with in order to drive the described executive component II 16 of tension mechanism II pressure head action to be arranged side by side in the axial direction, and be structure as a whole or connect as one; For drive tension mechanism II 34, tension mechanism III 35 action hydraulic cylinder, for driving the traffic direction of the hydraulic cylinder of tension mechanism I 33 action unanimously and for being nested with hydraulic cylinder structure inside and outside setting; The described inside and outside hydraulic cylinder structure being nested with setting includes interior hydraulic cylinder and outer hydraulic cylinder; Described interior hydraulic cylinder has the cylinder sleeve 8 of piston and interior hydraulic cylinder; The oil input channel II 27 be communicated with the backhaul oil pocket of interior hydraulic cylinder is arranged on cylinder sleeve 8 wall of interior hydraulic cylinder; The piston 32 of described outer hydraulic cylinder is annular, and on the cylinder sleeve 8 being positioned at hydraulic cylinder and mutually internally the cylinder sleeve 8 of hydraulic cylinder is fixed; The piston 32 of outer hydraulic cylinder is structure as a whole with the cylinder sleeve 8 of interior hydraulic cylinder; Or the piston 32 of outer hydraulic cylinder is nested with on the cylinder sleeve 8 of interior hydraulic cylinder; In this embodiment, the piston 32 of outer hydraulic cylinder is structure as a whole with the cylinder sleeve 8 of interior hydraulic cylinder; The two ends of outer Barrel of Hydraulic Cylinders internal face all have inwardly protruded annular boss: annular boss I 30, annular boss II 31; The piston 32 of described outer hydraulic cylinder is between annular boss I 30 and annular boss II 31; Cavity between the piston 32 of described annular boss I 30 and outer Barrel of Hydraulic Cylinders internal face, the cylinder sleeve 8 of interior hydraulic cylinder, outer hydraulic cylinder forms the backhaul oil pocket of outer hydraulic cylinder; Cavity between the piston 32 of described annular boss II 31 and outer Barrel of Hydraulic Cylinders internal face, the cylinder sleeve 8 of interior hydraulic cylinder, outer hydraulic cylinder forms the process oil pocket of outer hydraulic cylinder; The oil input channel IV 29 of the oil input channel III 28 of the described backhaul oil pocket setting of corresponding outer hydraulic cylinder, the described process oil pocket setting of corresponding outer hydraulic cylinder is all arranged on cylinder sleeve 8 wall of interior hydraulic cylinder; In this embodiment, described tension mechanism I 33 is positioned at the right side of tension mechanism II 34, tension mechanism III 35; The described inside and outside hydraulic cylinder structure being nested with setting is positioned at the right side of described tension mechanism I 33, and the described tension mechanism II 34 described in interior hydraulic cylinder correspondence, tension mechanism III 35 are arranged; The described tension mechanism I 33 described in outer hydraulic cylinder correspondence is arranged; Piston rod 10 and the executive component II 16 of described tension mechanism II, the executive component III 19 of tension mechanism III of described interior hydraulic cylinder are structure as a whole, make the action under the effect of interior hydraulic cylinder of executive component II 16, executive component III 19, and drive the pressure head action of tension mechanism II, tension mechanism III; The cylinder barrel of described outer hydraulic cylinder and the executive component I 15 of tension mechanism I are structure as a whole; For driving hydraulic cylinder in tension mechanism II 34, tension mechanism III 35 action, for driving the traffic direction of the outer hydraulic cylinder of tension mechanism I 33 action consistent, namely the traffic direction of the cylinder barrel of outer hydraulic cylinder is consistent with the traffic direction of interior hydraulic cylinder piston.During construction, described tension mechanism II 34, tension mechanism III 35 are arranged in the long length of tubing of 2-section pipe road relative length, described tension mechanism I 33, be nested with setting the corresponding 2-section pipe road of described inside and outside hydraulic cylinder structure in the short length of tubing of relative length arrange.
As shown in Fig. 6, Fig. 7, Fig. 8, in this embodiment, described outer Barrel of Hydraulic Cylinders includes the cylinder bottom 5, cylinder body 6 and the cylinder cap 9 that arrange from right to left; Described cylinder bottom 5, being threaded between cylinder body 6 and cylinder cap 9 is integrated; The internal face of described cylinder bottom 5 has the annular boss I 30 inwardly stretched out, the internal face of described cylinder cap 9 has the annular boss II 31 inwardly stretched out.
In this embodiment, described executive component I, executive component II, executive component III are the block that rises; Described executive component I, executive component II, executive component III are the block that rises, and also can be connecting rod, and described connecting rod is platy structure.
Fig. 3 provides the structural representation of the embodiment of the present invention 2, and the agent structure of this embodiment is with embodiment 1, and in this embodiment, the described tension mechanism I 33 described in interior hydraulic cylinder correspondence is arranged; The described tension mechanism II 34 described in outer hydraulic cylinder correspondence, tension mechanism III 35 are arranged; The piston rod 10 of described interior hydraulic cylinder is structure as a whole with the executive component I 15 of tension mechanism I, makes executive component I 15 action under the effect of interior hydraulic cylinder, and drives the pressure head action of tension mechanism I 33; The cylinder barrel of described outer hydraulic cylinder and the executive component II 16 of described tension mechanism II 34, the executive component III 19 of tension mechanism III 35 are structure as a whole; Described tension mechanism I 33 is positioned at the right side of tension mechanism II 34, tension mechanism III 35, and the described inside and outside hydraulic cylinder structure being nested with setting is positioned at the left side of tension mechanism II 34, tension mechanism III 35; During construction, described tension mechanism II 34, tension mechanism III 35, the described inside and outside hydraulic cylinder structure being nested with setting are arranged in the long length of tubing of 2-section pipe road relative length, and described tension mechanism I 33 is arranged in the short length of tubing of 2-section pipe road relative length.
Fig. 4 provides the structural representation of the embodiment of the present invention 3, and the agent structure of this embodiment is with embodiment 1, and in this embodiment, the described tension mechanism I 33 described in interior hydraulic cylinder correspondence is arranged; The described tension mechanism II 34 described in outer hydraulic cylinder correspondence, tension mechanism III 35 are arranged; The piston rod 10 of described interior hydraulic cylinder is structure as a whole with the executive component I 15 of tension mechanism I, makes executive component I 15 action under the effect of interior hydraulic cylinder, and drives the pressure head action of tension mechanism I 33; The cylinder barrel of described outer hydraulic cylinder and the executive component II 16 of described tension mechanism II 34, the executive component III 19 of tension mechanism III 35 are structure as a whole; Described tension mechanism I 33 is positioned at the left side of tension mechanism II 34, tension mechanism III 35, and the described inside and outside hydraulic cylinder structure being nested with setting is positioned at the right side of tension mechanism II 34, tension mechanism III 35; During construction, described tension mechanism II 34, tension mechanism III 35, the described inside and outside hydraulic cylinder structure being nested with setting are arranged in the long length of tubing of 2-section pipe road relative length, and described tension mechanism I 33 is arranged in the short length of tubing of 2-section pipe road relative length.
Fig. 5 provides the structural representation of the embodiment of the present invention 4, and the agent structure of this embodiment is with embodiment 1, and in this embodiment, in this embodiment, the described tension mechanism II 34 described in interior hydraulic cylinder correspondence, tension mechanism III 35 are arranged; The described tension mechanism I described in outer hydraulic cylinder correspondence is arranged; Piston rod 10 and the executive component II 16 of described tension mechanism II 34, the executive component III 19 of tension mechanism III 35 of described interior hydraulic cylinder are structure as a whole, make the action under the effect of interior hydraulic cylinder of executive component II 16, executive component III 19, and drive the pressure head action of tension mechanism II 34, tension mechanism III 35; The cylinder barrel of described outer hydraulic cylinder and the executive component I 15 of tension mechanism I are structure as a whole; Described tension mechanism I 33 is positioned at the left side of tension mechanism II 34, tension mechanism III 35; The described inside and outside hydraulic cylinder structure being nested with setting is positioned at the left side of tension mechanism I 33; During construction, described tension mechanism II 34, tension mechanism III 35 are arranged in the long length of tubing of 2-section pipe road relative length, described tension mechanism I 33, be nested with setting the corresponding 2-section pipe road of described inside and outside hydraulic cylinder structure in the short length of tubing of relative length arrange.
The tension mechanism of internal clamp has various structures to design at present, and main purpose of the present invention does not lie in the improvement of the tension mechanism to internal clamp; Too much do not illustrated the structure of tension mechanism at this, in this embodiment, described tension mechanism I 33, tension mechanism II 34, tension mechanism III 35 structure are identical, include pressure head 22, push rod 18, executive component and distribution plate 11; Described pressure head 22 is multiple for what circumferentially arrange, and described pressure head 22 connects push rod 18.
Claims (8)
1. an internal clamp, described internal clamp includes frame, tension mechanism I (33), tension mechanism II (34), tension mechanism III (35), road wheel I (1), road wheel II (25) and control system; Described tension mechanism I (33), tension mechanism II (34), tension mechanism III (35) are coaxially arranged; It is characterized in that: described tension mechanism II (34), tension mechanism III (35) they are one group, and corresponding same install pipeline; Described tension mechanism II (34), tension mechanism III (35) are by the linkage structure of same Driven by Hydraulic Cylinder; In order to the executive component III (19) that promotes tension mechanism III (35) pressure head action with in order to drive the described executive component II (16) of tension mechanism II (34) pressure head action to be arranged side by side at axial direction, and be structure as a whole or connect as one; For drive tension mechanism II (34), tension mechanism III (35) action hydraulic cylinder consistent with the traffic direction of the hydraulic cylinder for driving tension mechanism I (33) action and for being nested with hydraulic cylinder structure inside and outside setting; Described tension mechanism I (33) is axially being disposed adjacent with tension mechanism II (34), tension mechanism III (35), described tension mechanism II (34), tension mechanism III (35) are positioned at the side of tension mechanism I (33), the described inside and outside hydraulic cylinder structure being nested with setting is arranged on the opposite side of described tension mechanism I (33), and the corresponding install pipeline of described tension mechanism II (34), tension mechanism III (35); Or, described tension mechanism I (33) is positioned at the side of tension mechanism II (34), tension mechanism III (35), the described inside and outside hydraulic cylinder structure being nested with setting is arranged on the opposite side of described tension mechanism II (34), tension mechanism III (35), is nested with described inside and outside hydraulic cylinder structure and described tension mechanism II (34), the corresponding same install pipeline of tension mechanism III (34) of setting.
2. a kind of internal clamp according to claim 1, is characterized in that: the described inside and outside hydraulic cylinder structure being nested with setting includes interior hydraulic cylinder and outer hydraulic cylinder; Described interior hydraulic cylinder has the cylinder sleeve (8) of piston and interior hydraulic cylinder; The oil input channel II (26) be communicated with the backhaul oil pocket of interior hydraulic cylinder is arranged on cylinder sleeve (8) wall of interior hydraulic cylinder; The piston (32) of described outer hydraulic cylinder is annular, the cylinder sleeve (8) being positioned at hydraulic cylinder upper and mutually internally the cylinder sleeve (8) of hydraulic cylinder fix; The two ends of outer Barrel of Hydraulic Cylinders internal face all have inwardly protruded annular boss: annular boss I (30), annular boss II (31); The piston (32) of described outer hydraulic cylinder is positioned between annular boss I (30) and annular boss II (31); Cavity between the piston (32) of described annular boss I (30) and outer Barrel of Hydraulic Cylinders internal face, the cylinder sleeve (8) of interior hydraulic cylinder, outer hydraulic cylinder forms the backhaul oil pocket of outer hydraulic cylinder; Cavity between the piston (32) of described annular boss II (31) and outer Barrel of Hydraulic Cylinders internal face, the cylinder sleeve (8) of interior hydraulic cylinder, outer hydraulic cylinder forms the process oil pocket of outer hydraulic cylinder; The oil input channel IV (29) of the oil input channel III (28) of the described backhaul oil pocket setting of corresponding outer hydraulic cylinder, the described process oil pocket setting of corresponding outer hydraulic cylinder is all arranged on cylinder sleeve (8) wall of interior hydraulic cylinder.
3. a kind of internal clamp according to claim 1, is characterized in that: the described inside and outside hydraulic cylinder structure being nested with setting includes interior hydraulic cylinder and outer hydraulic cylinder; The described tension mechanism II (34) described in interior hydraulic cylinder correspondence, tension mechanism III (35) are arranged; The described tension mechanism I (33) described in outer hydraulic cylinder correspondence is arranged.
4. a kind of internal clamp according to claim 1, is characterized in that: the described inside and outside hydraulic cylinder structure being nested with setting includes interior hydraulic cylinder and outer hydraulic cylinder; The described tension mechanism I (33) described in interior hydraulic cylinder correspondence is arranged; The described tension mechanism II (34) described in outer hydraulic cylinder correspondence, tension mechanism III (35) are arranged.
5. a kind of internal clamp according to claim 1, is characterized in that: the described inside and outside hydraulic cylinder structure being nested with setting includes interior hydraulic cylinder and outer hydraulic cylinder; Described interior hydraulic cylinder has the cylinder sleeve (8) of piston and interior hydraulic cylinder; The piston rod (10) of interior hydraulic cylinder is structure as a whole with the executive component III (19) of the executive component II (16) of described tension mechanism II, tension mechanism III or connects as one; The cylinder barrel of described outer hydraulic cylinder and the executive component I (15) of tension mechanism I are structure as a whole or connect as one.
6. a kind of internal clamp according to claim 1, is characterized in that: the described inside and outside hydraulic cylinder structure being nested with setting includes interior hydraulic cylinder and outer hydraulic cylinder; Described interior hydraulic cylinder has the cylinder sleeve (8) of piston and interior hydraulic cylinder; The piston rod (10) of interior hydraulic cylinder and the executive component I (15) of described tension mechanism I are structure as a whole or connect as one; The executive component III (19) of the cylinder barrel of described outer hydraulic cylinder and the executive component II (16) of tension mechanism II, tension mechanism III is structure as a whole or connects as one.
7. a kind of internal clamp according to claim 1, is characterized in that: the executive component I (15) of described tension mechanism I is block or the connecting rod of rising.
8. a kind of internal clamp according to claim 1, is characterized in that: the executive component II (16) of described tension mechanism II, the executive component III (19) of tension mechanism III are block or the connecting rod of rising.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520134031.6U CN204584638U (en) | 2015-03-10 | 2015-03-10 | A kind of internal clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520134031.6U CN204584638U (en) | 2015-03-10 | 2015-03-10 | A kind of internal clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204584638U true CN204584638U (en) | 2015-08-26 |
Family
ID=53920836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520134031.6U Withdrawn - After Issue CN204584638U (en) | 2015-03-10 | 2015-03-10 | A kind of internal clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204584638U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690478A (en) * | 2015-03-10 | 2015-06-10 | 洛阳德平科技股份有限公司 | Internal clamp |
| CN113020761A (en) * | 2019-12-24 | 2021-06-25 | 梅广庆 | Method for forcibly forming interior of metal pipeline root welding seam and internal butt-joint device |
-
2015
- 2015-03-10 CN CN201520134031.6U patent/CN204584638U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690478A (en) * | 2015-03-10 | 2015-06-10 | 洛阳德平科技股份有限公司 | Internal clamp |
| CN104690478B (en) * | 2015-03-10 | 2016-02-24 | 洛阳德平科技股份有限公司 | A kind of internal clamp |
| CN113020761A (en) * | 2019-12-24 | 2021-06-25 | 梅广庆 | Method for forcibly forming interior of metal pipeline root welding seam and internal butt-joint device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150826 Effective date of abandoning: 20160224 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |