CN211175823U - Quick-change connector for sealed inflation of unthreaded hole - Google Patents
Quick-change connector for sealed inflation of unthreaded hole Download PDFInfo
- Publication number
- CN211175823U CN211175823U CN201922164937.3U CN201922164937U CN211175823U CN 211175823 U CN211175823 U CN 211175823U CN 201922164937 U CN201922164937 U CN 201922164937U CN 211175823 U CN211175823 U CN 211175823U
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- sleeve
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- locking
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- 238000007789 sealing Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model discloses a quick change coupler for sealed aerifing of unthreaded hole, its improvement lies in: the quick-change connector consists of a shell, a sliding sleeve, a guide cylinder, an expansion core shaft, a self-locking clamping sleeve, a telescopic rod, a reset spring, a pre-tightening spring, a sealing limiting sleeve and a plurality of elastic locking mechanisms; the utility model has the beneficial technical effects that: the quick-change connector for sealed inflation of the unthreaded hole is provided, the convenience of operation can be greatly improved, and the production efficiency is improved.
Description
Technical Field
The utility model relates to a be used for container leakage test or aerify device, especially relate to a quick change coupler that is used for sealed aerifing of unthreaded hole.
Background
In the prior art, when container products are processed, in order to improve the processing efficiency, a quick-change connector is generally adopted to connect a high-pressure gas source to a connector of a container (the high-pressure gas source is used for either filling the container with corresponding gas or testing the air tightness of the container); most of common quick change connectors are connected with the interfaces of the containers in a threaded mode; there are problems in that: some containers have smooth interfaces, and quick change connectors with thread structures cannot be suitable.
SUMMERY OF THE UTILITY MODEL
To the problem in the background art, the utility model provides a quick change coupler for sealed aerifing of unthreaded hole, its innovation lies in: the quick-change connector consists of a shell, a sliding sleeve, a guide cylinder, an expansion core shaft, a self-locking clamping sleeve, a telescopic rod, a reset spring, a pre-tightening spring, a sealing limiting sleeve and a plurality of elastic locking mechanisms;
an axial through hole is formed in the shell, and a guide section, a mounting section and a connecting section are sequentially formed in the axial through hole from left to right; the inner diameter of the guide section is larger than that of the mounting section, and a first step surface is formed at the junction of the guide section and the mounting section; the inner diameter of the mounting section is larger than that of the connecting section, and a sealing step is formed at the junction of the mounting section and the connecting section;
the inner end of the guide cylinder is sleeved in the mounting section and fixed, a first sealing ring is arranged between the inner end surface of the guide cylinder and the sealing step, and the first sealing ring seals a gap between the inner end of the guide cylinder and the mounting section; a gap is reserved between the outer wall of the guide cylinder and the inner wall of the guide section; the outer end of the guide cylinder is fixedly connected with the self-locking cutting sleeve, and an inner hole of the guide cylinder is communicated with an inner hole of the self-locking cutting sleeve; recording a structural body formed by the guide cylinder and the self-locking cutting sleeve as a mandrel, wherein inner holes of the guide cylinder and the self-locking cutting sleeve jointly form an inner hole of the mandrel; a convex limiting pin is arranged on the outer wall of the middle part of the mandrel; a second step surface is arranged on the inner wall of the middle part of the mandrel;
the inner end of the sliding sleeve is sleeved in the guide section, and the mandrel is sleeved in an inner hole of the sliding sleeve; the reset spring is sleeved outside the mandrel, the outer end of the reset spring is in contact with the inner end face of the sliding sleeve, and the inner end of the reset spring is in contact with the first step face; a guide groove is formed in the inner wall of the sliding sleeve, the axial direction of the guide groove is parallel to the axial direction of the sliding sleeve, and the limiting pin is located in the guide groove; an installation cavity is formed in the inner wall of the outer end of the sliding sleeve, the sealing limiting sleeve is arranged in the installation cavity, the inner wall of the sealing limiting sleeve is in contact with the outer wall of the self-locking clamping sleeve, and the outer end of the sealing limiting sleeve protrudes out of the outer end face of the sliding sleeve; the inner wall of the sliding sleeve is contacted with the outer wall of the self-locking clamping sleeve;
the outer end of the inner hole of the self-locking cutting sleeve is a conical surface, a deformation cavity is formed in the middle of the inner hole of the self-locking cutting sleeve, the outer end of the outer wall of the self-locking cutting sleeve is a conical surface, a plurality of deformation notches are arranged on the outer end surface of the self-locking cutting sleeve, and the positions of the inner ends of the deformation notches correspond to the deformation cavity;
the outer end of the expansion mandrel is a conical surface; the expansion core shaft is sleeved in the self-locking clamping sleeve, and the conical surface of the expansion core shaft is contacted with the conical surface on the inner hole of the self-locking clamping sleeve; the inner end of the expansion mandrel is fixedly connected with the outer end of the expansion rod; the telescopic rod is sleeved in the inner hole of the mandrel; a limiting ring is arranged on the outer wall of the outer end of the telescopic rod and is positioned on the outer side of the second step surface; the pre-tightening spring is sleeved on the telescopic rod, the outer end of the pre-tightening spring is contacted with the limiting ring, and the inner end of the pre-tightening spring is contacted with the second step surface; the inner end of the telescopic rod is positioned in the connecting section; the diameter of the middle part of the telescopic rod is smaller than that of the inner end of the telescopic rod, and a limiting conical surface is formed at the junction of the middle part of the telescopic rod and the inner end of the telescopic rod;
the outer wall of the shell is provided with a plurality of mounting holes, the positions of the mounting holes are matched with the connecting section, and the inner ends of the mounting holes are communicated with the connecting section through connecting holes; the elastic locking mechanisms are arranged in the mounting holes in a one-to-one correspondence manner; a lock pin on the elastic locking mechanism is sleeved in the connecting hole, the inner end of the lock pin is positioned in the connecting section, the inner end surface of the lock pin is provided with a conical surface matched with the limiting conical surface, and the inner end surface of the lock pin is contacted with the limiting conical surface; an annular groove is formed in the middle of the lock pin, a second sealing ring is arranged in the annular groove, and the second sealing ring hermetically seals the connecting hole;
when no external force is applied, the lock pin is positioned at the outward maximum stroke position, meanwhile, the expanding mandrel is tightly propped against the conical surface of the inner hole of the self-locking cutting sleeve under the action of a pre-tightening spring, simultaneously, the inner end surface of the lock pin is contacted with the limiting conical surface, simultaneously, the right end surface of the guide groove is tightly propped against the limiting pin under the action of a reset spring, and the position of the sealed limiting sleeve corresponds to the deformation notch; when the elastic locking mechanism is operated to enable the lock pin to move inwards, the limiting conical surface can move rightwards under the action of the lock pin, and at the moment, the expansion core shaft can be separated from the conical surface of the inner hole of the self-locking clamping sleeve; when the left end face of the guide groove is contacted with the limiting pin, the outer end face of the sliding sleeve is positioned on the right side of the deformation notch; when the outer end face of the sliding sleeve is located on the right side of the deformation notch and the expansion mandrel is abutted against the conical surface of the inner hole of the self-locking cutting sleeve, the outer end of the self-locking cutting sleeve can deform, and the diameter of the outer end of the self-locking cutting sleeve is enlarged.
When in use, the outer port of the connecting section is connected with a high-pressure air source through a pipeline; before operation, the outer wall of the self-locking clamping sleeve is bound by the sealing limiting sleeve and the sliding sleeve and cannot deform because the position of the sealing limiting sleeve corresponds to the deformation notch; when the quick-change connector is operated, an operator holds the quick-change connector, the outer end of the sealing limiting sleeve is used for extruding the end face of the unthreaded hole, at the moment, the sliding sleeve and the shell move relatively, meanwhile, the self-locking clamping sleeve also can gradually extend into the unthreaded hole, after the outer end face of the sliding sleeve slides to the right side of the deformation notch, the outer wall of the self-locking clamping sleeve loses constraint and deforms outwards under the action of the expansion mandrel, so that the outer diameter of the self-locking clamping sleeve is increased, at the moment, the self-locking clamping sleeve is clamped in the unthreaded hole, the self-locking clamping sleeve cannot be separated, and gas output by a high-pressure gas source can enter the unthreaded hole without leakage due to the; when the self-locking clamping sleeve is disassembled, an operator presses the elastic locking mechanism by hand to enable the lock pin to move inwards, so that the limiting conical surface is forced to move rightwards, the expanding core shaft can be separated from the conical surface of the inner hole of the self-locking clamping sleeve, at the moment, the self-locking clamping sleeve can restore to deform, the outer diameter of the self-locking clamping sleeve is reduced, and the self-locking clamping sleeve can be pulled out of the unthreaded hole after the outer diameter of the self-locking clamping sleeve is reduced;
adopt the utility model discloses afterwards, can make high pressurized air source and unthreaded hole interface realize quick airtight connection, the convenient operation nature is better, can effectively improve operating efficiency.
The utility model has the beneficial technical effects that: the quick-change connector for sealed inflation of the unthreaded hole is provided, the convenience of operation can be greatly improved, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic sectional structure diagram of the present invention;
FIG. 2 is a schematic view of a self-locking sleeve structure;
the names corresponding to each mark in the figure are respectively: the device comprises a shell 1, a guide section 1-1, a mounting section 1-2, a connecting section 1-3, a sliding sleeve 2, a guide groove 2-1, a guide cylinder 3, a limiting pin 3-1, an expansion mandrel 4, a self-locking clamping sleeve 5, a deformation cavity 5-1, a deformation notch 5-2, a telescopic rod 6, a limiting conical surface 6-1, a reset spring 7, a pre-tightening spring 8, a sealing limiting sleeve 9 and an elastic locking mechanism 10.
Detailed Description
A quick-change coupler for sealed inflation of unthreaded hole, its innovation lies in: the quick-change connector is composed of a shell 1, a sliding sleeve 2, a guide cylinder 3, an expansion mandrel 4, a self-locking cutting sleeve 5, a telescopic rod 6, a return spring 7, a pre-tightening spring 8, a sealing limit sleeve 9 and a plurality of elastic locking mechanisms 10;
an axial through hole is formed in the shell 1, and a guide section 1-1, an installation section 1-2 and a connecting section 1-3 are sequentially formed in the axial through hole from left to right; the inner diameter of the guide section 1-1 is larger than that of the installation section 1-2, and a first step surface is formed at the junction of the guide section 1-1 and the installation section 1-2; the inner diameter of the installation section 1-2 is larger than that of the connection section 1-3, and a sealing step is formed at the junction of the installation section 1-2 and the connection section 1-3;
the inner end of the guide cylinder 3 is sleeved and fixed in the mounting section 1-2, a first sealing ring is arranged between the inner end surface of the guide cylinder 3 and the sealing step, and the first sealing ring seals a gap between the inner end of the guide cylinder 3 and the mounting section 1-2; a gap is reserved between the outer wall of the guide cylinder 3 and the inner wall of the guide section 1-1; the outer end of the guide cylinder 3 is fixedly connected with the self-locking cutting sleeve 5, and the inner hole of the guide cylinder 3 is communicated with the inner hole of the self-locking cutting sleeve 5; recording a structural body formed by the guide cylinder 3 and the self-locking cutting sleeve 5 as a mandrel, wherein inner holes of the guide cylinder 3 and the self-locking cutting sleeve 5 jointly form an inner hole of the mandrel; a convex limiting pin 3-1 is arranged on the outer wall of the middle part of the mandrel; a second step surface is arranged on the inner wall of the middle part of the mandrel;
the inner end of the sliding sleeve 2 is sleeved in the guide section 1-1, and the mandrel is sleeved in an inner hole of the sliding sleeve 2; the reset spring 7 is sleeved outside the mandrel, the outer end of the reset spring 7 is in contact with the inner end face of the sliding sleeve 2, and the inner end of the reset spring 7 is in contact with the first step face; a guide groove 2-1 is formed in the inner wall of the sliding sleeve 2, the axial direction of the guide groove 2-1 is parallel to the axial direction of the sliding sleeve 2, and the limiting pin 3-1 is located in the guide groove 2-1; an installation cavity is formed in the inner wall of the outer end of the sliding sleeve 2, the sealing limit sleeve 9 is arranged in the installation cavity, the inner wall of the sealing limit sleeve 9 is in contact with the outer wall of the self-locking cutting sleeve 5, and the outer end of the sealing limit sleeve 9 protrudes out of the outer end face of the sliding sleeve 2; the inner wall of the sliding sleeve 2 is contacted with the outer wall of the self-locking cutting sleeve 5;
the outer end of the inner hole of the self-locking cutting sleeve 5 is a conical surface, a deformation cavity 5-1 is formed in the middle of the inner hole of the self-locking cutting sleeve 5, the outer end of the outer wall of the self-locking cutting sleeve 5 is a conical surface, a plurality of deformation notches 5-2 are formed in the outer end surface of the self-locking cutting sleeve 5, and the positions of the inner ends of the deformation notches 5-2 correspond to the deformation cavity 5-1;
the outer end of the expanding mandrel 4 is a conical surface; the expansion mandrel 4 is sleeved in the self-locking clamping sleeve 5, and the conical surface of the expansion mandrel 4 is contacted with the conical surface on the inner hole of the self-locking clamping sleeve 5; the inner end of the expansion mandrel 4 is fixedly connected with the outer end of the expansion rod 6; the telescopic rod 6 is sleeved in the inner hole of the mandrel; a limiting ring is arranged on the outer wall of the outer end of the telescopic rod 6 and is positioned on the outer side of the second step surface; the pre-tightening spring 8 is sleeved on the telescopic rod 6, the outer end of the pre-tightening spring 8 is in contact with the limiting ring, and the inner end of the pre-tightening spring 8 is in contact with the second step surface; the inner end of the telescopic rod 6 is positioned in the connecting section 1-3; the diameter of the middle part of the telescopic rod 6 is smaller than that of the inner end of the telescopic rod 6, and a limiting conical surface 6-1 is formed at the junction of the middle part of the telescopic rod 6 and the inner end of the telescopic rod 6;
a plurality of mounting holes are formed in the outer wall of the shell 1, the positions of the mounting holes are matched with the connecting sections 1-3, and the inner ends of the mounting holes are communicated with the connecting sections 1-3 through connecting holes; the plurality of elastic locking mechanisms 10 are installed in the plurality of installation holes in a one-to-one correspondence; a lock pin on the elastic locking mechanism 10 is sleeved in the connecting hole, the inner end of the lock pin is positioned in the connecting section 1-3, the inner end surface of the lock pin is provided with a conical surface matched with the limiting conical surface 6-1, and the inner end surface of the lock pin is contacted with the limiting conical surface 6-1; an annular groove is formed in the middle of the lock pin, a second sealing ring is arranged in the annular groove, and the second sealing ring hermetically seals the connecting hole;
when no external force is applied, the lock pin is positioned at the outward maximum stroke position, meanwhile, the expanding mandrel 4 is tightly propped against the conical surface of the inner hole of the self-locking cutting sleeve 5 under the action of the pre-tightening spring 8, meanwhile, the inner end surface of the lock pin is contacted with the limiting conical surface 6-1, meanwhile, under the action of the reset spring 7, the right end surface of the guide groove 2-1 is tightly propped against the limiting pin 3-1, and the position of the sealing limiting sleeve 9 corresponds to the deformation notch 5-2; when the elastic locking mechanism 10 is operated to enable the lock pin to move inwards, the limiting conical surface 6-1 can move rightwards under the action of the lock pin, and at the moment, the expanding mandrel 4 can be separated from the conical surface of the inner hole of the self-locking cutting sleeve 5; when the left end face of the guide groove 2-1 is contacted with the limiting pin 3-1, the outer end face of the sliding sleeve 2 is positioned on the right side of the deformation notch 5-2; when the outer end face of the sliding sleeve 2 is positioned on the right side of the deformation notch 5-2 and the expansion mandrel 4 is tightly abutted to the conical surface of the inner hole of the self-locking cutting sleeve 5, the outer end of the self-locking cutting sleeve 5 can deform, so that the diameter of the outer end of the self-locking cutting sleeve 5 is increased.
Claims (1)
1. A quick-change coupler for sealed inflation of unthreaded hole which characterized in that: the quick-change connector is composed of a shell (1), a sliding sleeve (2), a guide cylinder (3), an expanding mandrel (4), a self-locking clamping sleeve (5), a telescopic rod (6), a return spring (7), a pre-tightening spring (8), a sealing limiting sleeve (9) and a plurality of elastic locking mechanisms (10);
an axial through hole is formed in the shell (1), and a guide section (1-1), an installation section (1-2) and a connecting section (1-3) are sequentially formed in the axial through hole from left to right; the inner diameter of the guide section (1-1) is larger than that of the mounting section (1-2), and a first step surface is formed at the junction of the guide section (1-1) and the mounting section (1-2); the inner diameter of the mounting section (1-2) is larger than that of the connecting section (1-3), and a sealing step is formed at the junction of the mounting section (1-2) and the connecting section (1-3);
the inner end of the guide cylinder (3) is sleeved in the mounting section (1-2) and fixed, a first sealing ring is arranged between the inner end face of the guide cylinder (3) and the sealing step, and a gap between the inner end of the guide cylinder (3) and the mounting section (1-2) is sealed by the first sealing ring; a gap is reserved between the outer wall of the guide cylinder (3) and the inner wall of the guide section (1-1); the outer end of the guide cylinder (3) is fixedly connected with the self-locking cutting sleeve (5), and an inner hole of the guide cylinder (3) is communicated with an inner hole of the self-locking cutting sleeve (5); recording a structural body formed by the guide cylinder (3) and the self-locking cutting sleeve (5) as a mandrel, wherein inner holes of the guide cylinder (3) and the self-locking cutting sleeve (5) jointly form an inner hole of the mandrel; a convex limiting pin (3-1) is arranged on the outer wall of the middle part of the mandrel; a second step surface is arranged on the inner wall of the middle part of the mandrel;
the inner end of the sliding sleeve (2) is sleeved in the guide section (1-1), and the mandrel is sleeved in an inner hole of the sliding sleeve (2); the reset spring (7) is sleeved outside the mandrel, the outer end of the reset spring (7) is in contact with the inner end face of the sliding sleeve (2), and the inner end of the reset spring (7) is in contact with the first step face; a guide groove (2-1) is formed in the inner wall of the sliding sleeve (2), the axial direction of the guide groove (2-1) is parallel to the axial direction of the sliding sleeve (2), and the limiting pin (3-1) is located in the guide groove (2-1); an installation cavity is formed in the inner wall of the outer end of the sliding sleeve (2), the sealing limit sleeve (9) is arranged in the installation cavity, the inner wall of the sealing limit sleeve (9) is in contact with the outer wall of the self-locking clamping sleeve (5), and the outer end of the sealing limit sleeve (9) protrudes out of the outer end face of the sliding sleeve (2); the inner wall of the sliding sleeve (2) is contacted with the outer wall of the self-locking clamping sleeve (5);
the outer end of the inner hole of the self-locking cutting sleeve (5) is a conical surface, a deformation cavity (5-1) is formed in the middle of the inner hole of the self-locking cutting sleeve (5), the outer end of the outer wall of the self-locking cutting sleeve (5) is a conical surface, a plurality of deformation notches (5-2) are formed in the outer end face of the self-locking cutting sleeve (5), and the positions of the inner ends of the deformation notches (5-2) correspond to the deformation cavity (5-1);
the outer end of the expanding mandrel (4) is a conical surface; the expanding mandrel (4) is sleeved in the self-locking clamping sleeve (5), and the conical surface of the expanding mandrel (4) is contacted with the conical surface on the inner hole of the self-locking clamping sleeve (5); the inner end of the expansion mandrel (4) is fixedly connected with the outer end of the expansion rod (6); the telescopic rod (6) is sleeved in the inner hole of the mandrel; a limiting ring is arranged on the outer wall of the outer end of the telescopic rod (6), and the limiting ring is positioned on the outer side of the second step surface; the pre-tightening spring (8) is sleeved on the telescopic rod (6), the outer end of the pre-tightening spring (8) is in contact with the limiting ring, and the inner end of the pre-tightening spring (8) is in contact with the second step surface; the inner end of the telescopic rod (6) is positioned in the connecting section (1-3); the diameter of the middle part of the telescopic rod (6) is smaller than that of the inner end of the telescopic rod (6), and a limiting conical surface (6-1) is formed at the junction of the middle part of the telescopic rod (6) and the inner end of the telescopic rod (6);
a plurality of mounting holes are formed in the outer wall of the shell (1), the positions of the mounting holes are matched with the connecting sections (1-3), and the inner ends of the mounting holes are communicated with the connecting sections (1-3) through connecting holes; the elastic locking mechanisms (10) are correspondingly arranged in the mounting holes one by one; a lock pin on the elastic locking mechanism (10) is sleeved in the connecting hole, the inner end of the lock pin is positioned in the connecting section (1-3), the inner end surface of the lock pin is provided with a conical surface matched with the limiting conical surface (6-1), and the inner end surface of the lock pin is contacted with the limiting conical surface (6-1); an annular groove is formed in the middle of the lock pin, a second sealing ring is arranged in the annular groove, and the second sealing ring hermetically seals the connecting hole;
when no external force is applied, the lock pin is positioned at the outward maximum stroke position, the expanding mandrel (4) is tightly propped against the conical surface of the inner hole of the self-locking cutting sleeve (5) under the action of a pre-tightening spring (8), the right end surface of the guide groove (2-1) is tightly propped against the limiting pin (3-1) under the action of a return spring (7), and the position of the sealing limiting sleeve (9) corresponds to the deformation notch (5-2); when the elastic locking mechanism (10) is operated to enable the lock pin to move inwards, the limiting conical surface (6-1) can move rightwards under the action of the lock pin, and at the moment, the expanding mandrel (4) can be separated from the conical surface of the inner hole of the self-locking clamping sleeve (5); when the left end face of the guide groove (2-1) is contacted with the limiting pin (3-1), the outer end face of the sliding sleeve (2) is positioned on the right side of the deformation notch (5-2); when the outer end face of the sliding sleeve (2) is positioned on the right side of the deformation notch (5-2) and the expansion core shaft (4) is tightly abutted to the conical surface of the inner hole of the self-locking clamping sleeve (5), the outer end of the self-locking clamping sleeve (5) can deform, so that the diameter of the outer end of the self-locking clamping sleeve (5) is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922164937.3U CN211175823U (en) | 2019-12-06 | 2019-12-06 | Quick-change connector for sealed inflation of unthreaded hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922164937.3U CN211175823U (en) | 2019-12-06 | 2019-12-06 | Quick-change connector for sealed inflation of unthreaded hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211175823U true CN211175823U (en) | 2020-08-04 |
Family
ID=71806626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922164937.3U Withdrawn - After Issue CN211175823U (en) | 2019-12-06 | 2019-12-06 | Quick-change connector for sealed inflation of unthreaded hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211175823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778827A (en) * | 2019-12-06 | 2020-02-11 | 上汽依维柯红岩车桥有限公司 | Quick-change connector for sealed inflation of unthreaded hole |
-
2019
- 2019-12-06 CN CN201922164937.3U patent/CN211175823U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778827A (en) * | 2019-12-06 | 2020-02-11 | 上汽依维柯红岩车桥有限公司 | Quick-change connector for sealed inflation of unthreaded hole |
| CN110778827B (en) * | 2019-12-06 | 2024-01-19 | 上汽红岩车桥(重庆)有限公司 | Quick-change connector for sealing and inflating unthreaded hole |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 400900 No.1, Nanhuan Avenue, Shuangqiao economic and Technological Development Zone, Dazu District, Chongqing Patentee after: SAIC Hongyan Axle (Chongqing) Co.,Ltd. Address before: 400900 No.1, Nanhuan Avenue, Shuangqiao economic and Technological Development Zone, Dazu District, Chongqing Patentee before: SAIC-IVECO HONGYAN COMMERCIAL VEHICLE CO.,LTD. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200804 Effective date of abandoning: 20240119 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200804 Effective date of abandoning: 20240119 |