CN112460124A - High-strength bolt and processing method thereof - Google Patents
High-strength bolt and processing method thereof Download PDFInfo
- Publication number
- CN112460124A CN112460124A CN202011385714.0A CN202011385714A CN112460124A CN 112460124 A CN112460124 A CN 112460124A CN 202011385714 A CN202011385714 A CN 202011385714A CN 112460124 A CN112460124 A CN 112460124A
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- screw rod
- screw
- body fixing
- plate
- plate body
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- 238000003672 processing method Methods 0.000 title abstract description 5
- 238000003825 pressing Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
Abstract
The application discloses a high-strength bolt and a processing method thereof, belongs to the field of bolts, and is used for the high-strength bolt, a cavity for placing a plate body fixing disc is processed inside a screw rod of the high-strength bolt, and the plate body fixing disc is contacted with a conical block through a jacking plate and a conical adjusting plate; the screw rod is provided with a screw rod through hole at the position corresponding to the jacking plate, the conical block is driven by the adjusting rod to move towards one end far away from the screw cap, and the jacking plate is forced to move towards the outside of the screw rod through hole by the conical adjusting plate until the jacking plate is contacted with and tightly jacked against the screw cap connected with the screw rod; one end of the adjusting rod is positioned on the bottom surface of the screw rod, and the other end of the adjusting rod is positioned in the plate body fixing disc; the plate body fixing disc is connected with the screw cap through a plate body fixing sleeve, and the plate body fixing sleeve is of a sleeve body structure coaxially arranged with the plate body fixing disc. On the basis that it can form in the preparation of current high strength bolt raw and other materials, through designing the great bolt structure of diameter, can bring excellent performance such as anticreep again when guaranteeing bolt strength.
Description
Technical Field
The application belongs to the field of bolts, and particularly relates to a high-strength bolt and a processing method thereof.
Background
The bolt is used as a fitting with wide application, and cannot be used from aerospace to daily life. Bolts can be classified into general bolts and high-strength bolts according to the difference in bolt strength. Compared with the common bolt, the high-strength bolt has many advantages: the on-site assembly has short time, small influence on production, long service life, wide applicable component range, safe and reliable connection and better manufacturability and economy; due to these advantages of high-strength bolts, intensive research on high-strength bolt steels and high-strength bolts has been carried out in recent years in industrially developed countries, and a series of ultra-high-strength bolt steels and ultra-high-strength bolts have been developed.
However, we have noticed that the strength of the bolt is improved from the bolt processing raw materials in the prior art, and how to improve the bolt from the structural point of view for the high-strength bolt with a larger screw diameter, so that the high-strength bolt has the high strength brought by the materials and also has the excellent performance brought by the structure.
Disclosure of Invention
The present application aims to provide a high-strength bolt and a processing method thereof, which can ensure the strength of the bolt and bring excellent performances such as anti-drop performance and the like by designing a bolt structure with a large diameter on the basis of manufacturing the existing high-strength bolt raw material.
In order to achieve the purpose, the method is realized by the following technical scheme:
the high-strength bolt comprises a nut, wherein a screw rod fixed with the nut into a whole is arranged at the central axis of the nut, and the screw rod and the nut are coaxially arranged; the screw rod extends downwards from the bottom surface of the nut along the central axis of the nut, and external threads are processed on the outer surface of the screw rod; a cavity for placing the plate body fixing disc is formed in the screw, a jacking plate is hinged to the circumferential outer surface of the plate body fixing disc, a conical adjusting plate is arranged on the inner side surface of the jacking plate close to the bottom surface of the jacking plate, the jacking plate is uniformly distributed on the circumferential outer surface of the plate body fixing disc around the central axis of the plate body fixing disc, and the inner side surface of the conical adjusting plate is in contact with the circumferential outer surface of the conical block; the screw rod is provided with a screw rod through hole at the position corresponding to the jacking plate, the conical block is driven by the adjusting rod to move towards one end far away from the screw cap, and the jacking plate is forced to move towards the outside of the screw rod through hole by the conical adjusting plate until the jacking plate is contacted with and tightly jacked against the screw cap connected with the screw rod; one end of the adjusting rod is positioned on the bottom surface of the screw rod, and the other end of the adjusting rod is positioned in the plate body fixing disc; the plate body fixing disc is connected with the screw cap through a plate body fixing sleeve, and the plate body fixing sleeve is of a sleeve body structure coaxially arranged with the plate body fixing disc.
Furthermore, the nut disclosed by the invention comprises a main nut and an auxiliary nut, wherein the bottom surface of the main nut is fixed with the plate body fixing sleeve through a pressing block; the auxiliary nut extends downwards from the bottom surface of the main nut along the outer surface of the screw rod.
Furthermore, a through hole for the adjusting rod to pass through is processed at the central axis of the pressing block, and the circumferential outer surface of the pressing block is in interference fit with the inner wall of the plate body fixing sleeve and the inner wall of the screw rod respectively.
Furthermore, two ends of the adjusting rod are polished rods, and external threads are processed in the middle of the adjusting rod and are connected with the internal threads of the conical block through the external threads.
Furthermore, a stroke cavity for the downward movement of the conical block is reserved between the bottom surface of the conical adjusting plate and the bottom surface of the cavity of the screw rod.
Furthermore, the screw rod is provided with a bottom stepped hole on the bottom surface, and the bottom stepped hole is used for accommodating the bottom end of the adjusting rod.
A method of manufacturing the high strength bolt described above, the method comprising the steps of:
1) cutting the steel wire to the length required by the bolt, respectively placing the nut and the screw into a die cavity at normal temperature, and using upsetting force to form the size of the nut and the screw required by the bolt;
2) drilling a hole downwards at the top of the screw at room temperature to form a cavity and a through hole for placing an adjusting rod, processing a limiting part in the cavity, and forming an external thread outside the screw by adopting a thread rolling machine;
3) processing a blind hole coaxial with the pressing block at the central axis of the bottom surface of the screw cap, wherein the diameter of the blind hole is the same as the outer diameter of the screw rod, and the outer diameter of the pressing block is the same as the diameter of the cavity in the screw rod;
4) the outer surface of the screw is provided with a screw through hole with a strip-shaped through hole structure;
5) after the conical block and the conical adjusting plate are matched, the conical block, the jacking plate, the plate body fixing disc and the plate body fixing sleeve are placed into the cavity of the screw rod until the bottom surface of the plate body fixing disc is contacted with the limiting part in the cavity;
6) and the blind hole of the auxiliary nut is matched with the top surface of the screw, the pressing block is matched with the cavity in the screw, and the pressing block and the screw are welded and polished to form a whole.
Compared with the prior art, the beneficial effects of this application are:
the bolt structure can ensure the strength of the bolt and bring excellent performances such as anti-falling and the like by designing the bolt structure with larger diameter on the basis of the existing high-strength bolt raw material.
Drawings
Fig. 1 is an external structural view of the present invention.
FIG. 2 is a cross-sectional view taken along line I-I of FIG. 1.
FIG. 3 is a schematic structural diagram of the plate fixing plate, the plate fixing sleeve, the jacking plate, the tapered adjusting plate and the tapered block according to the present invention.
In the figure: 1. a main nut; 2. a secondary nut; 3. an external thread; 4. a screw; 5. a screw through hole; 6. a jacking plate; 7. a tapered adjusting plate; 8. a conical block; 9. a stroke cavity; 10. adjusting a rod; 11. a bottom stepped hole; 12. a plate body fixing plate; 13. a plate body fixing sleeve; 14. and (7) briquetting.
In order to fully reveal the internal structure of the bolt, the proportion of the internal structure is adjusted in the drawing of the invention, but the invention is not meant to limit the protection scope of the technical scheme of the application.
Detailed Description
The technical solutions described in the present application are further described below with reference to examples. It should be noted that, in the following paragraphs, possible directional terms including, but not limited to, "upper, lower, left, right, front, rear" and the like are used, and all directions are meant to correspond to the visual directions shown in the drawings of the specification, which should not be construed as limiting the scope of the present invention, and are only for facilitating the better understanding of the technical solutions described in the specification by those skilled in the art.
In the description of the following paragraphs, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances in combination with common general knowledge in the art, design specifications, standard documents, and the like.
Example 1
A high-strength bolt comprises a nut, wherein a screw rod 4 fixed with the nut into a whole is arranged at the central axis of the nut, and the screw rod 4 and the nut are coaxially arranged; the screw rod 4 extends downwards from the bottom surface of the nut along the central axis of the nut, and an external thread 3 is processed on the outer surface of the screw rod 4; a cavity for placing the plate body fixing disc 12 is processed in the screw rod 4, the circumferential outer surface of the plate body fixing disc 12 is hinged with a jacking plate 6, a conical adjusting plate 7 is arranged on the inner side surface of the jacking plate 6 close to the bottom surface of the jacking plate, the jacking plate 6 is uniformly distributed on the circumferential outer surface of the plate body fixing disc 12 around the central axis of the plate body fixing disc 12, and the inner side surface of the conical adjusting plate 7 is in contact with the circumferential outer surface of the conical block 8; a screw through hole 5 is processed at the position of the screw 4 corresponding to the jacking plate 6, the conical block 8 is driven by the adjusting rod 10 to move towards one end far away from the screw cap, and the jacking plate 6 is forced to move towards the outside of the screw through hole 5 through the conical adjusting plate 7 until the jacking plate 6 is contacted with and tightly jacked against a nut connected to the screw 4; one end of the adjusting rod 10 is positioned at the bottom surface of the screw rod 4, and the other end of the adjusting rod 10 is positioned in the plate body fixing disc 12; the plate body fixing disc 12 is connected with the screw cap through a plate body fixing sleeve 13, and the plate body fixing sleeve 13 is of a sleeve body structure which is coaxial with the plate body fixing disc 12.
Example 2
A high-strength bolt, wherein the said nut includes main nut 1 and auxiliary nut 2, the bottom surface of the main nut 1 is fixed with fixed sleeve 13 of the plate body through the briquetting 14; the auxiliary nut 2 extends downwards from the bottom surface of the main nut 1 along the outer surface of the screw rod 4; a through hole for the adjusting rod 10 to pass through is processed at the central axis of the pressing block 14, and the circumferential outer surface of the pressing block 14 is in interference fit with the inner wall of the plate body fixing sleeve 13 and the inner wall of the screw rod 4 respectively; two ends of the adjusting rod 10 are polished rods, and the middle part of the adjusting rod 10 is provided with external threads and is connected with the internal threads of the conical block 8 through the external threads; a stroke cavity 9 for the downward movement of the conical block 8 is reserved between the bottom surface of the conical adjusting plate 7 and the bottom surface of the cavity of the screw rod 4; the screw rod 4 is provided with a bottom stepped hole 11 on the bottom surface, and the bottom stepped hole 11 is used for accommodating the bottom end of the adjusting rod 10. The structure and connection relationship of the rest parts are the same as those described in any of the foregoing embodiments, and are not described herein again to avoid the tedious text.
Example 3
A method for processing a high-strength bolt, wherein the method comprises the following steps:
1) cutting the steel wire to the length required by the bolt, respectively placing the nut and the screw into a die cavity at normal temperature, and using upsetting force to form the size of the nut and the screw required by the bolt;
2) drilling downwards the top of the screw rod 4 at room temperature to form a cavity and a through hole for placing the adjusting rod 10, processing a limiting part in the cavity, and forming the external thread 3 outside the screw rod 4 by adopting a thread rolling machine;
3) a blind hole coaxial with the pressing block 14 is processed at the central axis of the bottom surface of the screw cap, the diameter of the blind hole is the same as the outer diameter of the screw rod (4), and the outer diameter of the pressing block 14 is the same as the diameter of the cavity in the screw rod 4;
4) a screw through hole 5 with a strip-shaped through hole structure is processed on the outer surface of the screw 4;
5) after the conical block 8 and the conical adjusting plate 7 are matched, the conical block, the jacking plate 6, the plate body fixing disc 12 and the plate body fixing sleeve 13 are placed into the cavity of the screw rod 4 until the bottom surface of the plate body fixing disc 12 is contacted with a limiting part in the cavity;
6) the blind hole of the auxiliary nut 2 is matched with the top surface of the screw rod 4, the pressing block 14 is matched with the cavity in the screw rod 4, and the two parts are welded and polished to form a whole.
On the basis of the above-mentioned embodiments, the following paragraphs are used to continue detailed description of the technical features involved therein and the functions and actions of the technical features in the technical solutions, so as to help those skilled in the art fully understand the technical solutions and reproduce the technical solutions.
The two ends of the adjusting rod 10 are polished rods which are respectively arranged at the bottom ends of the screw rod 4, the plate body fixing disc 12 and the screw rod 4. Since the screw rod 4 is provided with a bottom stepped hole 11 at the bottom end thereof, the adjustment of the adjustment lever 10 can be realized through the bottom stepped hole 11. The rotation of adjusting pole 10 is realized through the bottom recess contact of instrument and regulation pole 10 promptly, and the middle part position department of adjusting pole 10 is processed there is the external screw thread, and the internal screw thread cooperation of external screw thread and toper piece 8 adjusts the rotation of pole 10 and can drive toper piece 8 and remove along adjusting pole 10. As shown in fig. 2, the conical block 8 is inverted, and its movement to the stroke cavity 9 can expand the lifting plate 6, which is originally located in the screw through hole 5, outward. The jacking plate 6 can be contacted with the nut connected with the external thread 3 after being expanded outwards to realize the anti-falling of the nut. The inner part of the jacking plate 6 is provided with a conical adjusting plate 7 matched with the circumferential outer surface of a conical block 8.
In the invention, the plate body fixing disc 12 is a circular plate body structure, and the cross section of the plate body fixing disc is the same as the cross section of the cavity of the screw rod 4. The outer circumferential surface of the plate body fixing disc 12 is hinged with the jacking plates 6, and the jacking plates 6 are uniformly distributed around the central axis of the plate body fixing disc 12. In the present invention, the inner diameter of the cavity formed in the screw is 1/3 of the outer diameter of the screw 4, and the lifting plate 6 and the tapered adjusting plate 7 are mostly located inside the screw through hole 5 in the initial state, and are partially located in the cavity of the screw 4 and matched with the tapered block 8. The structural examples shown in the drawings of the specification are modified and have been labeled in the description of the drawings.
In the present invention, the pressing block 14 is a cylinder structure, and is fixed on the main nut 1, and a blind hole is processed at the peripheral position of the pressing block 14, and the blind hole is located on the auxiliary nut 2. The main nut 1 and the sub nut 2 are of an integral structure and together form a nut. The nut in the invention is in a hexagonal structure. The pressing block 14 is matched with the plate fixing sleeve 13 to fix the top of the plate fixing plate 12, as shown in fig. 3, the bottom surface of the part a is matched with the limit structure in the cavity of the screw rod 4 to fix the bottom of the plate fixing plate 12, and the bottom surface of the part a is located on the plate fixing plate 12 between the adjacent jacking plates 6. The limiting structure is a bulge protruding out of the inner wall of the cavity of the screw rod 4.
Finally, although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description of the present description is for clarity reasons only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims (7)
1. A high-strength bolt comprises a nut, wherein a screw (4) fixed with the nut into a whole is arranged at the central axis of the nut, and the screw (4) and the nut are coaxially arranged; the screw (4) extends downwards from the bottom surface of the nut along the central axis of the nut, and an external thread (3) is processed on the outer surface of the screw (4); the method is characterized in that: a cavity for placing the plate body fixing disc (12) is processed in the screw (4), the circumferential outer surface of the plate body fixing disc (12) is hinged with a jacking plate (6), the jacking plate (6) is provided with a conical adjusting plate (7) on the inner side surface close to the bottom surface of the jacking plate, the jacking plate (6) is uniformly distributed on the circumferential outer surface of the plate body fixing disc (12) around the central axis of the plate body fixing disc (12), and the inner side surface of the conical adjusting plate (7) is in contact with the circumferential outer surface of the conical block (8); the screw rod (4) is provided with a screw rod through hole (5) at the position corresponding to the jacking plate (6), the conical block (8) is driven by the adjusting rod (10) to move towards one end far away from the screw cap, and the jacking plate (6) is forced to move towards the outside of the screw rod through hole (5) through the conical adjusting plate (7) until the jacking plate (6) is contacted with a nut connected with the screw rod (4) and is jacked tightly; one end of the adjusting rod (10) is positioned on the bottom surface of the screw rod (4), and the other end of the adjusting rod (10) is positioned in the plate body fixing disc (12); the plate body fixing disc (12) is connected with the screw cap through a plate body fixing sleeve (13), and the plate body fixing sleeve (13) is of a sleeve body structure coaxially arranged with the plate body fixing disc (12).
2. A high strength bolt according to claim 1, wherein: the nut comprises a main nut (1) and an auxiliary nut (2), and the bottom surface of the main nut (1) is fixed with a plate body fixing sleeve (13) through a pressing block (14); the auxiliary nut (2) extends downwards from the bottom surface of the main nut (1) along the outer surface of the screw rod (4).
3. A high strength bolt according to claim 2, wherein: the central axis of the pressing block (14) is provided with a through hole for the adjusting rod (10) to pass through, and the circumferential outer surface of the pressing block (14) is in interference fit with the inner wall of the plate body fixing sleeve (13) and the inner wall of the screw rod (4) respectively.
4. A high strength bolt according to claim 3, wherein: the two ends of the adjusting rod (10) are polished rods, and external threads are machined in the middle of the adjusting rod (10) and connected with the internal threads of the conical block (8) through the external threads.
5. A high strength bolt according to claim 4, wherein: and a stroke cavity (9) for the downward movement of the conical block (8) is reserved between the bottom surface of the conical adjusting plate (7) and the bottom surface of the cavity of the screw rod (4).
6. A high strength bolt according to claim 5, wherein: the bottom surface of the screw rod (4) is provided with a bottom step hole (11), and the bottom step hole (11) is used for accommodating the bottom end of the adjusting rod (10).
7. A method of manufacturing the high-strength bolt according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:
1) cutting the steel wire to the length required by the bolt, respectively placing the nut and the screw into a die cavity at normal temperature, and using upsetting force to form the size of the nut and the screw required by the bolt;
2) drilling downwards the top of the screw rod (4) at room temperature to form a cavity and a through hole for placing the adjusting rod (10), machining a limiting part in the cavity, and forming the external thread (3) outside the screw rod (4) by adopting a thread rolling machine;
3) a blind hole coaxial with the pressing block (14) is processed at the central axis of the bottom surface of the screw cap, the diameter of the blind hole is the same as the outer diameter of the screw rod (4), and the outer diameter of the pressing block (14) is the same as the diameter of the inner cavity of the screw rod (4);
4) a screw through hole (5) with a strip-shaped through hole structure is processed on the outer surface of the screw (4);
5) after the conical block (8) is matched with the conical adjusting plate (7), the conical block, the jacking plate (6), the plate body fixing disc (12) and the plate body fixing sleeve (13) are placed into the cavity of the screw rod (4) until the bottom surface of the plate body fixing disc (12) is contacted with the limiting part in the cavity;
6) the blind hole of the auxiliary nut (2) is matched with the top surface of the screw rod (4), the pressing block (14) is matched with the cavity in the screw rod (4), and the pressing block and the screw rod are welded and polished to form a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011385714.0A CN112460124B (en) | 2020-12-02 | 2020-12-02 | High-strength bolt and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011385714.0A CN112460124B (en) | 2020-12-02 | 2020-12-02 | High-strength bolt and processing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112460124A true CN112460124A (en) | 2021-03-09 |
| CN112460124B CN112460124B (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011385714.0A Active CN112460124B (en) | 2020-12-02 | 2020-12-02 | High-strength bolt and processing method thereof |
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| CN (1) | CN112460124B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294421A (en) * | 2021-06-19 | 2021-08-24 | 江苏宁欣汽车零部件有限公司 | Double-hexagon bolt head bolt |
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|---|---|---|---|---|
| US4653132A (en) * | 1984-04-13 | 1987-03-31 | Kensetsu Fastener Kabushiki Kaisha | Method of making plug-containing type internally threaded anchor |
| CN204851949U (en) * | 2015-07-14 | 2015-12-09 | 江苏永昊高强度螺栓有限公司 | Check fixing bolt |
| CN106736287A (en) * | 2016-12-25 | 2017-05-31 | 重庆岷龙机械制造有限公司 | A kind of manufacture method of anti-backing type bolt |
| CN108518399A (en) * | 2018-06-20 | 2018-09-11 | 海盐东盛紧固件制造有限公司 | A kind of agricultural machinery bolt easy to use |
| CN210715518U (en) * | 2019-08-15 | 2020-06-09 | 台州腾亚机械有限公司 | Screw with high fastening performance |
| CN111456296A (en) * | 2020-04-10 | 2020-07-28 | 沈维浩 | Building curtain wall |
| CN111456299A (en) * | 2020-04-10 | 2020-07-28 | 沈维浩 | Architectural decoration curtain wall with support rotation-proof structure |
-
2020
- 2020-12-02 CN CN202011385714.0A patent/CN112460124B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4653132A (en) * | 1984-04-13 | 1987-03-31 | Kensetsu Fastener Kabushiki Kaisha | Method of making plug-containing type internally threaded anchor |
| CN204851949U (en) * | 2015-07-14 | 2015-12-09 | 江苏永昊高强度螺栓有限公司 | Check fixing bolt |
| CN106736287A (en) * | 2016-12-25 | 2017-05-31 | 重庆岷龙机械制造有限公司 | A kind of manufacture method of anti-backing type bolt |
| CN108518399A (en) * | 2018-06-20 | 2018-09-11 | 海盐东盛紧固件制造有限公司 | A kind of agricultural machinery bolt easy to use |
| CN210715518U (en) * | 2019-08-15 | 2020-06-09 | 台州腾亚机械有限公司 | Screw with high fastening performance |
| CN111456296A (en) * | 2020-04-10 | 2020-07-28 | 沈维浩 | Building curtain wall |
| CN111456299A (en) * | 2020-04-10 | 2020-07-28 | 沈维浩 | Architectural decoration curtain wall with support rotation-proof structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294421A (en) * | 2021-06-19 | 2021-08-24 | 江苏宁欣汽车零部件有限公司 | Double-hexagon bolt head bolt |
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| Publication number | Publication date |
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| CN112460124B (en) | 2022-07-19 |
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