CN216555386U - Pellet control valve for full-automatic sand blasting operation - Google Patents
Pellet control valve for full-automatic sand blasting operation Download PDFInfo
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- CN216555386U CN216555386U CN202123195699.6U CN202123195699U CN216555386U CN 216555386 U CN216555386 U CN 216555386U CN 202123195699 U CN202123195699 U CN 202123195699U CN 216555386 U CN216555386 U CN 216555386U
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Abstract
The utility model belongs to the technical field of special sand blasting equipment, and particularly relates to a shot control valve for full-automatic sand blasting operation. The valve core comprises an adjusting screw, an internal thread cylinder, a compression spring, a spring seat, a valve core, a valve body and a first butterfly-shaped sealing ring; the spring seat is of a box body structure, an internal thread cylinder mounting hole is formed in the box bottom of the spring seat, the internal thread cylinder is arranged in the internal thread cylinder mounting hole, and the first butterfly-shaped sealing ring is arranged between the spring seat and the valve core seat; the compression spring is against the valve core. The ball control valve for the full-automatic sand blasting operation is beneficial to avoiding the problems of sand blocking, unstable ball flow, small ball flow, easy abrasion of a valve seat and the like in the sand blasting operation, has the characteristics of adjustable flow, high efficiency and convenience in operation, stable structure and easiness in maintenance, and can work uninterruptedly and stably in a severe environment.
Description
Technical Field
The utility model belongs to the technical field of special sand blasting equipment, and particularly relates to a shot control valve for full-automatic sand blasting operation.
Background
The sandblasting refers to a process of cleaning and derusting the surface of a mechanical workpiece. With the development of scientific technology, the full-automatic sand blasting technology is more and more applied to the spraying industry. The sand valve used in the traditional manual sand blasting operation has small caliber, is easy to wear, has small shot flow and unstable flow, is very easy to cause sand blockage, and can not meet the high requirement of the full-automatic sand blasting operation on the sand blasting efficiency.
Disclosure of Invention
The utility model aims to provide a full-automatic shot control valve for sand blasting operation, which has stable structural performance and can work uninterruptedly and stably in severe environment.
In order to achieve the purpose, the utility model adopts the following technical scheme.
A ball control valve for full-automatic sand blasting operation comprises an adjusting screw 3, an internal thread cylinder 4, a compression spring 5, a spring seat 6, a valve core seat 7, a valve core 8, a valve body 16 and a first butterfly-shaped sealing ring 19;
the spring seat 6 is of a box body structure, an internal thread cylinder mounting hole is formed in the box bottom of the spring seat 6, the internal thread cylinder 4 is arranged in the internal thread cylinder mounting hole, and the valve core seat 7 is buckled at an opening of the spring seat 6 to form a first control cavity; the valve body 16 is connected to the valve core seat 7, and a second control cavity is dug on the contact surface of the valve body 16 and the valve core seat 7;
the first butterfly seal ring 19 is arranged between the spring seat 6 and the valve core seat 7 and divides the control cavity into a first cavity 1a and a second cavity 1 b; the first cavity 1a and the second cavity 1b are respectively communicated with an external air compressor so as to control the internal air pressure; the second butterfly seal ring 20 is arranged between the valve body 16 and the valve core seat 7 to divide the second control cavity into a third cavity 1c and a fourth cavity 1 d;
the adjusting screw 3 is screwed into the internal thread cylinder 4 and extends into the first cavity 1 a;
a valve core mounting hole coaxial with the internal thread cylinder mounting hole is formed in the valve core seat 7, and the valve core 8 can be slidably arranged in the valve core mounting hole; the compression spring 5 is positioned in the first cavity 1a and is abutted against the valve core 8 so that the valve core 8 has a tendency to move towards the third cavity 1 c;
provided in the valve body 16 are: a feeding valve channel communicated with the fourth cavity 1d, a control valve channel 16a opposite to the mounting hole of the internal thread cylinder and communicated with the fourth cavity 1d, and a discharging valve channel communicated with the control valve channel 16 a; a sand support 17 capable of blocking the control valve passage 16a is arranged in the fourth cavity 1d, and the sand support 17 is connected with the valve core 8.
A further improvement or preferred embodiment of the aforementioned pellet control valve for the full-automatic sand blasting operation further includes a spring support cover 21 disposed in the first cavity 1a and a retainer ring 18 disposed in the third cavity 1 c;
a first mounting hole is formed in the spring support cover 21, and a first connecting screw hole is formed in one end, facing the first cavity 1a, of the valve core 8; a first bolt is arranged in the first mounting hole, penetrates through the first mounting hole and penetrates through the first butterfly-shaped sealing ring 19 and is finally screwed into the first connecting screw hole, and the compression spring 5 abuts against the spring support cover 21 to push the first butterfly-shaped sealing ring 19 and the valve core 8;
a second mounting hole is formed in the retainer ring 18, and a second connecting screw hole is formed in one end, facing the third cavity 1c, of the valve core 8;
the sand support is characterized by further comprising a second bolt, wherein the second bolt is fixed on the sand support 17, and the free end of the second bolt penetrates through the second butterfly-shaped sealing ring 20 and penetrates through the second mounting hole to be screwed into the second connecting screw hole.
In a further improvement or preferred embodiment of the aforementioned pellet control valve for full-automatic blasting operation, the valve path comprises: the feed valve passage is dug out from the side surface of the valve body 16 and communicated to the fourth cavity 1 d; the discharge valve passage is dug out from the side surface of the valve body 16 and communicated to the control valve passage 16 a; the control valve passage 16a penetrates the valve body 16 to form a maintenance passage 16 b; the outlet of the feeding valve way is communicated to an external sand storage device; a threaded connection pipe head 10 is arranged at the outlet of the discharge valve channel; the outlet of the service aperture 16b is covered with a service end cap 14.
The further improvement or the preferred embodiment of the pill control valve for the full-automatic sand blasting operation further comprises a connecting flange 11 connected to the threaded connecting pipe head 10; the threaded connector end 10 is embedded with a wear-resistant support sleeve 100 on the inside.
In a further improvement or preferred embodiment of the pellet control valve for the full-automatic sand blasting operation, a threaded hole is formed in the outer side of the outlet of the maintenance pore passage 16b, a supporting bolt 101 is arranged in the threaded hole, and a supporting sleeve 12 is arranged on the supporting bolt 101;
the support plate 13 is provided with holes corresponding to the positions of the support bolts 101, and the support bolts 101 press the support plate 13 on the support sleeve 12;
the middle part of the supporting plate 13 is provided with a pressing screw hole, a butterfly nut 15 is arranged in the pressing screw hole, and the butterfly nut props against the maintenance end cover 14 so as to press the outlet of the maintenance pore passage 16 b.
In a further improvement or preferred embodiment of the pellet control valve for the full-automatic sand blasting operation, the spring seat 6 and the valve core seat 7 are of coaxial rotary structures; the spring seat 6 and the valve core seat 7 are uniformly and correspondingly provided with fixed connecting holes in an annular shape, and the fixed connecting holes are uniformly distributed around the axis of the revolving body; the spring seat 6 and the valve seat 7 are connected by a fixed connection bolt 103 and a fixed connection nut 104 provided in the fixed connection hole.
In a further improvement or preferred embodiment of the aforementioned pellet control valve for full-automatic sand blasting operation, the valve core seat 7 comprises a valve core support seat 70 and a valve body support seat 71 which are connected by threads; the valve core supporting seat 70 and the valve body supporting seat 71 are of a rotary body structure; the valve core supporting seat 70 is buckled at the opening of the spring seat 6, and the valve body supporting seat 71 is buckled outside the second control cavity.
In a further improvement or preferred embodiment of the pill control valve for the full-automatic sand blasting operation, the adjusting screw 3 and the internal thread cylinder 4 are connected by trapezoidal threads; the internal thread cylinder 4 is connected with the spring seat 6 by a taper thread; one end of the valve core supporting seat 70 facing the second control cavity is provided with a threaded connecting section, and the valve body supporting seat 71 is correspondingly provided with a threaded sleeve part; the threaded connection section and the threaded sleeve portion are connected by a tapered thread.
In a further improvement or preferred embodiment of the aforementioned pellet control valve for full-automatic sand blasting operation, the first butterfly-shaped sealing ring 19 and the second butterfly-shaped sealing ring 20 are formed by injection molding of polyurethane rubber; the sand support 17 is made of a natural rubber coated carbon steel part, and a wear-resisting agent is added during the forming of the natural rubber to enhance the wear resistance of the natural rubber; one end of the carbon steel part inside the valve core is made into a screw structure so as to be connected with the check ring 18 and the valve core 8.
In a further improvement or preferred embodiment of the aforementioned pellet control valve for the fully automatic sand blasting operation, an annular wear-resistant lining 22 is arranged at an opening of one end of the control valve channel 16a facing the sand tray 17.
The beneficial effects are that:
the ball control valve for the full-automatic sand blasting operation is beneficial to avoiding the problems of sand blocking, unstable ball flow, small ball flow, easy abrasion of a valve seat and the like in the sand blasting operation, has the characteristics of adjustable flow, high efficiency and convenience in operation, stable structure and easiness in maintenance, and can work uninterruptedly and stably in a severe environment.
Drawings
FIG. 1 is a first schematic structural view (closed state) of a shot control valve for full-automatic sand blasting operation;
FIG. 2 is a second schematic structural view (open state) of a shot control valve for full-automatic sand blasting operation;
FIG. 3 is a schematic view of a valve passage structure;
wherein the reference numerals include:
the valve core comprises a first cavity 1a, a second cavity 1b, a third cavity 1c, a fourth cavity 1d, an operating handle 2, an adjusting screw rod 3, an internal thread cylinder 4, a compression spring 5, a spring seat 6, a valve core seat 7, a valve core supporting seat 70, a valve body supporting seat 71, a valve core 8, a threaded connecting pipe head 10, a connecting flange 11, a supporting sleeve 12, a supporting plate 13, a maintenance end cover 14, a butterfly nut 15, a valve body 16, a control valve passage 16a, a maintenance hole passage 16b, a sand support 17, a check ring 18, a first butterfly sealing ring 19, a second butterfly sealing ring 20, a spring supporting cover 21, a wear-resistant supporting sleeve 100 and a supporting bolt 101;
Detailed Description
The present invention will be described in detail with reference to specific examples.
As shown in fig. 1 and 2, the shot control valve for full-automatic sand blasting operation of the utility model comprises an adjusting screw 3, an internal thread cylinder 4, a compression spring 5, a spring seat 6, a valve core seat 7, a valve core 8, a valve body 16 and a first butterfly seal ring 19;
the spring seat 6 is of a box body structure, an internal thread cylinder mounting hole is formed in the box bottom of the spring seat 6, the internal thread cylinder 4 is arranged in the internal thread cylinder mounting hole, and the valve core seat 7 is buckled at an opening of the spring seat 6 to form a first control cavity; the valve body 16 is connected to the valve core seat 7, and a second control cavity is dug on the contact surface of the valve body 16 and the valve core seat 7;
the spring seat 6 and the valve core seat 7 are of a coaxial revolving body structure; the spring seat 6 and the valve core seat 7 are uniformly and correspondingly provided with fixed connecting holes in an annular shape, and the fixed connecting holes are uniformly distributed around the axis of the revolving body; the spring seat 6 and the valve seat 7 are connected by a fixed connection bolt 103 and a fixed connection nut 104 provided in the fixed connection hole.
The first butterfly seal ring 19 is arranged between the spring seat 6 and the valve core seat 7 and divides the control cavity into a first cavity 1a and a second cavity 1 b; the first cavity 1a and the second cavity 1b are respectively communicated with an external air compressor so as to control the internal air pressure; the second butterfly seal ring 20 is arranged between the valve body 16 and the valve core seat 7 to divide the second control cavity into a third cavity 1c and a fourth cavity 1 d;
the adjusting screw 3 is screwed into the internal thread cylinder 4 and extends into the first cavity 1 a;
a valve core mounting hole coaxial with the internal thread cylinder mounting hole is formed in the valve core seat 7, and the valve core 8 can be slidably arranged in the valve core mounting hole; the compression spring 5 is positioned in the first cavity 1a and is abutted against the valve core 8 so that the valve core 8 has a tendency to move towards the third cavity 1 c;
the valve core seat 7 comprises a valve core supporting seat 70 and a valve body supporting seat 71 which are connected through threads; the valve core supporting seat 70 and the valve body supporting seat 71 are of a rotary body structure; the valve core supporting seat 70 is buckled at the opening of the spring seat 6, and the valve body supporting seat 71 is buckled outside the second control cavity.
The adjusting screw rod 3 and the internal thread cylinder 4 are connected by trapezoidal threads; the internal thread cylinder 4 is connected with the spring seat 6 by a taper thread; one end of the valve core supporting seat 70 facing the second control cavity is provided with a threaded connecting section, and the valve body supporting seat 71 is correspondingly provided with a threaded sleeve part; the threaded connection section and the threaded sleeve portion are connected by a tapered thread.
Provided in the valve body 16 are: a feeding valve channel communicated with the fourth cavity 1d, a control valve channel 16a opposite to the mounting hole of the internal thread cylinder and communicated with the fourth cavity 1d, and a discharging valve channel communicated with the control valve channel 16 a; a sand support 17 capable of blocking the control valve passage 16a is arranged in the fourth cavity 1d, and the sand support 17 is connected with the valve core 8.
The valve way includes: the feed valve passage is dug out from the side surface of the valve body 16 and communicated to the fourth cavity 1 d; the discharge valve passage is dug out from the side surface of the valve body 16 and communicated to the control valve passage 16 a; the control valve passage 16a penetrates the valve body 16 to form a maintenance passage 16 b; the outlet of the feeding valve way is communicated to an external sand storage device; a threaded connection pipe head 10 is arranged at the outlet of the discharge valve channel; the outlet of the service aperture 16b is covered with a service end cap 14.
A threaded hole is formed in the outer side of the outlet of the maintenance pore passage 16b, a supporting bolt 101 is arranged in the threaded hole, and a supporting sleeve 12 is arranged on the supporting bolt 101; the connector also comprises a connecting flange 11 connected with the threaded connector head 10; the threaded connector end 10 is embedded with a wear-resistant support sleeve 100 on the inside.
The support plate 13 is provided with holes corresponding to the positions of the support bolts 101, and the support bolts 101 press the support plate 13 on the support sleeve 12;
the middle part of the supporting plate 13 is provided with a pressing screw hole, a butterfly nut 15 is arranged in the pressing screw hole, and the butterfly nut props against the maintenance end cover 14 so as to press the outlet of the maintenance pore passage 16 b.
A spring support cover 21 arranged in the first cavity 1a and a retainer ring 18 arranged in the third cavity 1 c;
a first mounting hole is formed in the spring support cover 21, and a first connecting screw hole is formed in one end, facing the first cavity 1a, of the valve core 8; a first bolt is arranged in the first mounting hole, penetrates through the first mounting hole and penetrates through the first butterfly-shaped sealing ring 19 and is finally screwed into the first connecting screw hole, and the compression spring 5 abuts against the spring support cover 21 to push the first butterfly-shaped sealing ring 19 and the valve core 8;
the first butterfly-shaped sealing ring 19 and the second butterfly-shaped sealing ring 20 are formed by polyurethane rubber through injection molding; the sand support 17 is made of a natural rubber coated carbon steel part, and a wear-resisting agent is added during the forming of the natural rubber to enhance the wear resistance of the natural rubber; one end of the carbon steel part inside the valve core is made into a screw structure so as to be connected with the check ring 18 and the valve core 8.
A second mounting hole is formed in the retainer ring 18, and a second connecting screw hole is formed in one end, facing the third cavity 1c, of the valve core 8; the sand support is characterized by further comprising a second bolt, wherein the second bolt is fixed on the sand support 17, and the free end of the second bolt penetrates through the second butterfly-shaped sealing ring 20 and penetrates through the second mounting hole to be screwed into the second connecting screw hole.
An annular wear-resistant lining 22 is arranged at the opening of one end of the control valve channel 16a facing the sand support 17.
In particular, for the convenience of operation, an operating handle 2 is further arranged at the operating end of the adjusting screw rod 3, and the operating handle 2 is fixed on the adjusting screw rod 3 through a bolt washer structure 1.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A ball control valve for full-automatic sand blasting operation is characterized by comprising an adjusting screw (3), an internal thread cylinder (4), a compression spring (5), a spring seat (6), a valve core seat (7), a valve core (8), a valve body (16) and a first butterfly-shaped sealing ring (19);
the spring seat (6) is of a box body structure, an internal thread cylinder mounting hole is formed in the box bottom of the spring seat (6), the internal thread cylinder (4) is arranged in the internal thread cylinder mounting hole, and the valve core seat (7) is buckled at the opening of the spring seat (6) to form a first control cavity; the valve body (16) is connected to the valve core seat (7), and a second control cavity is dug on the contact surface of the valve body (16) and the valve core seat (7);
the first butterfly-shaped sealing ring (19) is arranged between the spring seat (6) and the valve core seat (7) and divides the control cavity into a first cavity (1a) and a second cavity (1 b); the first cavity (1a) and the second cavity (1b) are respectively communicated with an external air compressor so as to control the internal air pressure; the second butterfly-shaped sealing ring (20) is arranged between the valve body (16) and the valve core seat (7) to divide the second control cavity into a third cavity (1c) and a fourth cavity (1 d);
the adjusting screw rod (3) is screwed into the internal thread cylinder (4) and extends into the first cavity (1 a);
a valve core mounting hole coaxial with the internal thread cylinder mounting hole is formed in the valve core seat (7), and the valve core (8) is arranged in the valve core mounting hole in a sliding manner; the compression spring (5) is positioned in the first cavity (1a) and is abutted against the valve core (8) so that the valve core (8) has the tendency of moving towards the third cavity (1 c);
the valve body (16) is internally provided with: a feeding valve channel communicated with the fourth cavity (1d), a control valve channel (16a) opposite to the mounting hole of the internal thread cylinder and communicated with the fourth cavity (1d), and a discharging valve channel communicated with the control valve channel (16 a); a sand support (17) capable of blocking the control valve channel (16a) is arranged in the fourth cavity (1d), and the sand support (17) is connected with the valve core (8).
2. A shot control valve for a full automatic blasting operation according to claim 1, further comprising a spring support cap (21) provided in the first chamber (1a) and a retainer ring (18) provided in the third chamber (1 c);
a first mounting hole is formed in the spring support cover (21), and a first connecting screw hole is formed in one end, facing the first cavity (1a), of the valve core (8); a first bolt is arranged in the first mounting hole, penetrates through the first mounting hole and penetrates through the first butterfly-shaped sealing ring (19) and is finally screwed into the first connecting screw hole, and the compression spring (5) abuts against the spring support cover (21) to push the first butterfly-shaped sealing ring (19) and the valve core (8);
a second mounting hole is formed in the retainer ring (18), and a second connecting screw hole is formed in one end, facing the third cavity (1c), of the valve core (8);
the sand support is characterized by further comprising a second bolt, the second bolt is fixed on the sand support (17), and the free end of the second bolt penetrates through the second butterfly-shaped sealing ring (20) and penetrates through the second mounting hole to be screwed into the second connecting screw hole.
3. A shot control valve for a fully automatic blasting operation according to claim 1, wherein said valve passage comprises: the feeding valve way is dug out from the side surface of the valve body (16) and communicated to the fourth cavity (1 d); the discharge valve channel is dug out from the side surface of the valve body (16) and communicated to the control valve channel (16 a); the control valve channel (16a) penetrates through the valve body (16) to form a maintenance channel (16 b); the outlet of the feeding valve way is communicated to an external sand storage device; a threaded connecting pipe head (10) is arranged at the outlet of the discharge valve channel; the outlet of the maintenance duct (16b) is covered with a maintenance end cap (14).
4. A shot control valve for a full automatic blasting operation according to claim 3, further comprising a coupling flange (11) coupled to the screw coupling nipple (10); the inner side of the threaded connection pipe head (10) is embedded with a wear-resistant support sleeve (100).
5. The shot control valve for the full-automatic sand blasting operation according to claim 3, wherein a threaded hole is formed outside the outlet of the maintenance duct (16b), a support bolt (101) is arranged in the threaded hole, and a support sleeve (12) is arranged on the support bolt (101);
the support plate (13) is provided with holes corresponding to the positions of the support bolts (101), and the support bolts (101) tightly press the support plate (13) on the support sleeve (12);
the middle part of the supporting plate (13) is provided with a pressing screw hole, a butterfly nut (15) is arranged in the pressing screw hole, and the butterfly nut props against the maintenance end cover (14) to press the outlet of the maintenance pore passage (16 b).
6. The shot control valve for the full-automatic sand blasting operation according to claim 1, wherein the spring seat (6) and the valve core seat (7) are of a coaxial revolving body structure; the spring seat (6) and the valve core seat (7) are uniformly and correspondingly provided with fixed connecting holes in an annular shape, and the fixed connecting holes are uniformly distributed around the axis of the rotating body; the spring seat (6) is connected with the valve core seat (7) through a fixed connecting bolt (103) arranged in the fixed connecting hole and a fixed connecting nut (104).
7. The shot control valve for the full-automatic sand blasting operation according to claim 1, wherein the valve core seat (7) comprises a valve core support seat (70) and a valve body support seat (71) which are connected through threads; the valve core supporting seat (70) and the valve body supporting seat (71) are of a rotary body structure; the valve core supporting seat (70) is buckled at the opening of the spring seat (6), and the valve body supporting seat (71) is buckled outside the second control cavity.
8. The shot control valve for the full-automatic sand blasting operation according to claim 7, wherein the adjusting screw (3) and the internal thread cylinder (4) are connected by trapezoidal threads; the internal thread cylinder (4) is connected with the spring seat (6) by adopting conical threads; one end of the valve core supporting seat (70) facing the second control cavity is provided with a threaded connecting section, and the valve body supporting seat (71) is correspondingly provided with a threaded sleeve part; the threaded connection section and the threaded sleeve portion are connected by a tapered thread.
9. The shot control valve for the full-automatic sand blasting operation is characterized in that the first butterfly-shaped sealing ring (19) and the second butterfly-shaped sealing ring (20) are formed by polyurethane rubber injection molding; the sand support (17) is made of a natural rubber coated carbon steel part, and a wear-resisting agent is added during the forming of the natural rubber to enhance the wear resistance of the natural rubber; one end of the carbon steel part inside the valve body is made into a screw rod structure so as to be connected with the check ring (18) and the valve core (8).
10. A shot control valve for full automatic blasting operation according to claim 1, characterized in that an annular wear-resistant lining (22) is provided at an opening of one end of the control valve passage (16a) facing the sand tray (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123195699.6U CN216555386U (en) | 2021-12-17 | 2021-12-17 | Pellet control valve for full-automatic sand blasting operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123195699.6U CN216555386U (en) | 2021-12-17 | 2021-12-17 | Pellet control valve for full-automatic sand blasting operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216555386U true CN216555386U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123195699.6U Active CN216555386U (en) | 2021-12-17 | 2021-12-17 | Pellet control valve for full-automatic sand blasting operation |
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| Country | Link |
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| CN (1) | CN216555386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116619230A (en) * | 2023-07-24 | 2023-08-22 | 江苏安江汽车部件有限公司 | Self-sealing radiator air deflector assembly cleaning device and cleaning method |
-
2021
- 2021-12-17 CN CN202123195699.6U patent/CN216555386U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116619230A (en) * | 2023-07-24 | 2023-08-22 | 江苏安江汽车部件有限公司 | Self-sealing radiator air deflector assembly cleaning device and cleaning method |
| CN116619230B (en) * | 2023-07-24 | 2023-09-19 | 江苏安江汽车部件有限公司 | Self-sealing radiator air deflector assembly cleaning device and cleaning method |
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Address after: Room 605 and 607, 6 / F, Jinguan building, No.5 Kaiming Road, Jiang'an District, Wuhan City, Hubei Province, 430000 Patentee after: Hubei Sanjiang Boli Intelligent Equipment Co.,Ltd. Address before: Room 605 and 607, 6 / F, Jinguan building, No.5 Kaiming Road, Jiang'an District, Wuhan City, Hubei Province, 430000 Patentee before: HUBEI SANJIANG AEROSPACE COATING EQUIPMENT ENGINEERING Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |