CN113685422A - Anchor bolt protective cover - Google Patents
Anchor bolt protective cover Download PDFInfo
- Publication number
- CN113685422A CN113685422A CN202110915769.6A CN202110915769A CN113685422A CN 113685422 A CN113685422 A CN 113685422A CN 202110915769 A CN202110915769 A CN 202110915769A CN 113685422 A CN113685422 A CN 113685422A
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- China
- Prior art keywords
- cover body
- wall
- screw
- protective cover
- sealing ring
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Classifications
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- 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
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/002—Measures against loss of bolts, nuts or pins
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention relates to the technical field of steel structure maintenance, and provides a foundation bolt protective cover which comprises a lower cover body, a connecting cover body, an upper cover body and a sealing element, wherein the lower cover body comprises a nut cover body, a screw rod cover body, a guide groove, a wedge-shaped groove and a solid coloring agent; the protective cover is also suitable for the foundation bolt under abnormal conditions of single-nut locking, overlong or overlong screw rod and the like, and simultaneously realizes accurate judgment of the loosening condition of the foundation bolt through external detection.
Description
Technical Field
The invention belongs to the technical field of steel structure maintenance, and particularly relates to a foundation bolt protective cover.
Background
With the rapid development of the industries such as communication, electric power, radio and television, and the like, the digital signal transmission facility equipment is increasing day by day, the iron tower bearing the facility equipment is higher and heavier, and how to ensure the service life of the iron tower also becomes an unappreciable technical problem. At present, the common protection measures are to adopt a concrete encapsulation mode to isolate air so as to achieve the protection purposes of locking, reinforcing and avoiding air oxidation, but the risk of the method is high, if the encapsulation quality is not too hard, the environment around the foundation bolt is easy to be wet, the foundation bolt is easy to be corroded, the difficulty of judging the service condition of the foundation bolt by an external detection means is increased by encapsulation, the hidden danger is always that the sheep death and reinforcement are started at the beginning of the young, and the protection principle is different from the protection principle of taking precaution as the main principle; furthermore, regular inspection of the envelope requires that the envelope be destroyed and restored, which is costly and inefficient.
The invention discloses a foundation bolt cover specially designed for protecting foundation bolts in a construction site and a protection method thereof, wherein the foundation bolt cover comprises a protective cover light-transmitting top light-emitting plate, a protective cover body and a clamp spring, the protective cover light-transmitting top is arranged at the top of the protective cover body, the light-emitting plate is arranged at the top of the protective cover body at the lower part of the protective cover light-transmitting top, and the clamp spring is arranged in the protective cover body.
Chinese utility model patent application No. CN201811384559.3 discloses a rag bolt protector, which comprises a cover body, a diaphragm plate, a fixing nut and a piezoelectric sensor, wherein the cover body is a cylinder with a closed top, the top is a convex hemisphere, the lower part of the cover body is a cylinder with a circular cross section, the diaphragm plate is circular, the outer diameter is larger than the inner diameter of the lower part of the cover body, the inner diameter of the diaphragm plate is larger than the diameter of a screw rod of an anchor bolt, the diaphragm plate is placed at the lower part of the cover body, a central hole is sleeved on the screw rod of the anchor bolt, a fixing nut is in a circular ring shape, an inner ring opening screw thread is matched with the anchor bolt, the diameter of an outer ring is larger than the diameter of the inner ring of the diaphragm plate, the fixing nut is installed on the screw rod of the anchor bolt, a rubber sleeve is arranged outside to seal the anchor bolt, a zipper is arranged on the rubber sleeve, anti-corrosion grease is arranged inside the rubber sleeve, and the diaphragm plate is pressed on the upper part of the lower barrel by the fixing nut; the utility model discloses a though can react rag bolt's not hard up condition, the structure is complicated, and the installation is inconvenient, and protective scope relatively fixed, can not satisfy the installation requirement of screw rod overlength or short-term.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a protective cover for a foundation bolt, which comprises a lower cover body, a connecting cover body, an upper cover body and a sealing element, wherein the lower cover body comprises a nut cover body, a screw cover body, a guide groove, a wedge-shaped groove and a solid coloring agent strip; the connecting cover body is of a barrel structure which is communicated up and down and is vertically arranged at the upper end of the lower cover body, and the inner wall of the connecting cover body is provided with an internal thread matched with the external thread of the foundation screw; the upper cover body is of a downward through cylinder structure with a closed top surface and is vertically arranged at the upper end of the connecting cover body, and the inner wall of the upper cover body is provided with an internal thread matched with the external thread of the foundation screw; the sealing element comprises a first sealing ring and a second sealing ring, the first sealing ring is arranged between the lower cover body and the connecting cover body, and the second sealing ring is arranged between the connecting cover body and the upper cover body.
Furthermore, the outer diameter of the screw rod cover body, the outer diameter of the connecting cover body and the outer diameter of the upper cover body are equal.
Further, a plurality of first reinforcing ribs are uniformly and vertically arranged on the outer wall of the screw rod cover body, a plurality of second reinforcing ribs are uniformly and vertically arranged on the outer wall of the connecting cover body, and a plurality of third reinforcing ribs are uniformly and vertically arranged on the outer wall of the upper cover body.
Furthermore, the upper end of the screw rod cover body is provided with a first groove corresponding to the first sealing ring, and the upper end of the connecting cover body is provided with a second groove corresponding to the second sealing ring.
Further, the first sealing ring and the second sealing ring are both annular rubber pads or O-shaped rubber rings.
Furthermore, a first annular flange is arranged at the lower end of the nut cover body, and a second annular flange is arranged on the top edge of the guide groove along the outer wall of the nut cover body.
Furthermore, the middle cover body comprises a long middle cover body and a short middle cover body, wherein the inner wall of the long middle cover body is provided with 10 screw threads, and the inner wall of the short middle cover body is provided with 5 screw threads.
Furthermore, the top surface of the upper cover body is of a water drop-shaped cambered surface structure.
Furthermore, a through hole for filling the anti-corrosion lubricating oil is formed in the central area of the top surface of the upper cover body, and a blocking cover matched with the inner diameter of the through hole is arranged at the through hole.
Further, the solid coloring agent strip contains 10% of fluorescent powder in parts by weight.
Compared with the prior art, the protective cover has the following beneficial effects:
1. the protective cover disclosed by the invention adopts a method of combining three sections of cover bodies and is installed in a thread fixing mode, so that the stability of the protective cover body is ensured, abnormal conditions such as overlong or overlong bolt screw rods and the like are effectively covered, and meanwhile, by arranging the guide groove and the second annular flange, the height of the nut cover body can be conveniently changed when the protective cover faces a foundation bolt fixed by a single nut, so that the special condition of fixing the single nut is adapted.
2. The protective cover disclosed by the invention adopts a mode of combining the wedge-shaped groove and the solid coloring agent, so that the problem that the foundation bolt loosening condition is difficult to judge in an intuitive mode is effectively solved, an intuitive and reliable basis is provided for judging the foundation bolt loosening condition, and the labor and time cost for detecting and dismounting are greatly saved.
3. The protective cover is provided with the through hole and the blocking cover on the top surface of the upper cover body, so that great convenience is brought to refilling and replacing of anticorrosive lubricating oil, reinforcing ribs on the outer wall of each section of the cover body bring great convenience to manual operation, and meanwhile, the protective cover is simple in structure, convenient to process and easy to replace, so that convenience is provided for large-batch replacement and recycling of the protective cover.
4. The protective cover is widely applied to the tower poles of communication, electric power and broadcast television, the tower poles belong to high-rise equipment, are easily damaged due to rain and snow erosion for a long time, and generate potential safety hazards.
Drawings
Fig. 1 is a schematic perspective view of the protective cover according to the present invention.
Fig. 2 is a sectional view taken along line a-a in fig. 1.
Fig. 3 is a partially enlarged view of a marked in fig. 2.
Fig. 4 is a partially enlarged view of B indicated in fig. 2.
Shown in the figure: 1-lower cover body, 1.1-nut cover body, 1.1.1-first annular flange, 1.1.2-second annular flange, 1.2-screw cover body, 1.2.1-first groove, 1.2.2-first reinforcing rib, 1.3-guide groove, 1.4-wedge groove, 1.5-solid coloring agent strip, 2-connecting cover body, 2.1-short connecting cover body, 2.2-second groove, 2.3-second reinforcing rib, 3-upper cover body, 3.1-through hole, 3.2-blocking cover, 3.3-third reinforcing rib, 4-sealing element, 4.1-first sealing ring and 4.2-second sealing ring.
Detailed Description
The following detailed description of the embodiments of the protective cover according to the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1-2, the protective cover includes a lower cover body 1, a connecting cover body 2, and an upper cover body 3, which are sequentially arranged from bottom to top, wherein the lower cover body 1 includes a nut cover body 1.1, a screw cover body 1.2, a guide groove 1.3, a wedge-shaped groove 1.4, and a solid coloring agent strip 1.5 wedged with the wedge-shaped groove 1.4, the screw cover body 1.2 is located in a central area of a top surface of the nut cover body 1.1 and is vertically connected with the nut cover body 1.1 in a through manner, and an inner wall of the screw cover body 1.2 is provided with an inner thread matched with an outer thread of a foundation screw (not shown in the figure); as shown in fig. 3-4, a guide groove 1.3 for guiding cutting is horizontally arranged in the middle of the outer wall of the nut cover body 1.1 in the vertical direction, a wedge-shaped groove 1.4 is horizontally and inwardly arranged on the top surface of the nut cover body 1.1 along the edge of the joint part of the screw cover body 1.2 and the nut cover body 1.1, and the shape of a solid coloring agent strip 1.5 is matched with the shape of the wedge-shaped groove 1.4 and is arranged in the wedge-shaped groove 1.4; as shown in fig. 1, the connecting cover body 2 is a barrel structure which is through up and down and is vertically arranged at the upper end of the lower cover body 1, and the inner wall of the connecting cover body 2 is provided with an internal thread matched with the external thread of the foundation screw; the upper cover body 3 is of a downward through column structure with a closed top surface and is vertically arranged at the upper end of the connecting cover body 2, and the inner wall of the upper cover body 3 is provided with an internal thread matched with the external thread of the foundation screw; as shown in fig. 1, the sealing element 4 comprises a first sealing ring 4.1 and a second sealing ring 4.2, the first sealing ring 4.1 being arranged between the lower shell 1 and the connecting shell 2, the second sealing ring 4.2 being arranged between the connecting shell 2 and the upper shell 3.
Further, as shown in fig. 3, 10% of fluorescent powder is contained in 1.5 parts by weight of the solid coloring agent bar.
Further, as shown in fig. 1, the outer diameter of the screw cover 1.2 and the outer diameter of the connecting cover 2 are both equal to the outer diameter of the upper cover 3.
Further, as shown in fig. 1, a plurality of first reinforcing ribs 1.2.2 are uniformly and vertically arranged on the outer wall of the screw rod cover body 1.2, a plurality of second reinforcing ribs 2.2 are uniformly and vertically arranged on the outer wall of the connecting cover body 2, and a plurality of third reinforcing ribs 3.3 are uniformly and vertically arranged on the outer wall of the upper cover body 3.
Further, as shown in fig. 1, a first groove 1.2.1 corresponding to the first sealing ring 4.1 is provided at the upper end of the screw cover body 1.2, and a second groove 2.1 corresponding to the second sealing ring 4.2 is provided at the upper end of the connecting cover body 2.
Further, as shown in fig. 1, the first sealing ring 4.1 and the second sealing ring 4.2 are ring-shaped rubber gaskets or O-shaped rubber gaskets.
Further, as shown in fig. 1, a first annular flange 1.1.1 is provided at the lower end of the nut shell 1.1, and a second annular flange 1.1.2 is provided at the top edge of the guide groove 1.3 along the outer wall of the nut shell 1.1.
Further, as shown in fig. 1, the middle cover 2 includes two specifications, a short middle cover 2.1 and a long middle cover (not shown in the figure), wherein the inner wall of the short middle cover is provided with 5 screw threads, and the inner wall of the long middle cover is provided with 10 screw threads.
Further, as shown in fig. 1, the top surface of the upper cover 3 is a drop-shaped arc structure.
Further, as shown in fig. 1, a through hole 3.1 for conveniently filling anti-corrosion lubricating oil is formed in the central area of the top surface of the upper cover body 3, and a blocking cover 3.2 matched with the inner diameter of the through hole 3.1 is arranged at the through hole 3.1.
The application method of the protective cover is further described below in combination with different application scenarios of the foundation bolt.
The locking nut of the conventional foundation bolt is a double self-locking nut, an exposed screw comprises 15-20 threads, at the moment, the protective cover is rotationally fixed on the foundation bolt in sequence according to the sequence of firstly installing the lower cover body 1, then installing the short middle cover body 2.1 and finally installing the upper cover body 3, the through hole 3.1 is opened, and the blocking cover 3.2 is pressed down after injecting the anticorrosive lubricating oil; when the screw of the foundation bolt is exposed with 20-25 threads, the short connecting cover body 2.1 is replaced by a long connecting cover body (not shown in the figure), and the installation mode is unchanged from the conventional state; when the screw rod of the foundation bolt is exposed out of 25 threads, the long connecting cover body and the short connecting cover body 2.1 are sequentially arranged between the lower cover body 1 and the upper cover body 3; when the exposed threads of the screw rods of the foundation bolts do not reach 15 threads, the connecting cover body 2 is not installed after the lower cover body 1 is installed, and the upper cover body 3 is directly installed; when the locking nut of the foundation bolt is a single nut, the lower cover body 1 is cut along the guide groove 1.3, and then the corresponding installation is carried out according to the number of exposed threads of the screw rod and the method.
According to the working principle of the protective cover, when the nut of the foundation bolt is loosened, the flange of the foundation bolt displaces in the vertical direction due to the loosening, the nut cover body 1.1 of the lower cover body 1 is pushed to extrude upwards, and the screw rod cover body 1.2 of the lower cover body 1 keeps unchanged in position due to the fact that the screw rod cover body is fixed with the screw threads on the screw rod, so that the wedge-shaped groove 1.4 at the joint of the nut cover body 1.1 and the screw rod cover body 1.2 is driven to be closed to extrude the solid coloring agent strips 1.5 to diffuse outwards, an inspector can judge the loosening condition of the foundation bolt by seeing the diffused solid coloring agent strips 1.5, and even under the condition of insufficient light, because the solid coloring agent strips 1.5 contain fluorescent powder, the diffusion phenomenon can still be clearly seen.
The present invention is not limited to the above-described embodiments, and any variations, modifications, and alterations that may occur to one skilled in the art without departing from the spirit of the invention are intended to be within the scope of the invention.
Claims (10)
1. The protective cover for the foundation bolt is characterized by comprising a lower cover body, a connecting cover body, an upper cover body and a sealing piece, wherein the lower cover body comprises a nut cover body, a screw cover body, a guide groove, a wedge-shaped groove and a solid coloring agent strip; the connecting cover body is of a barrel structure which is communicated up and down and is vertically arranged at the upper end of the lower cover body, and the inner wall of the connecting cover body is provided with an internal thread matched with the external thread of the foundation screw; the upper cover body is of a downward through cylinder structure with a closed top surface and is vertically arranged at the upper end of the connecting cover body, and the inner wall of the upper cover body is provided with an internal thread matched with the external thread of the foundation screw; the sealing element comprises a first sealing ring and a second sealing ring, the first sealing ring is arranged between the lower cover body and the connecting cover body, and the second sealing ring is arranged between the connecting cover body and the upper cover body.
2. The rag bolt protective cover according to claim 1, wherein the outer diameter of the screw cover body, the outer diameter of the coupling cover body and the outer diameter of the upper cover body are equal.
3. The protective cover for the floor bolt according to claim 2, wherein a plurality of first reinforcing ribs are uniformly and vertically arranged on the outer wall of the screw rod cover body, a plurality of second reinforcing ribs are uniformly and vertically arranged on the outer wall of the connecting cover body, and a plurality of third reinforcing ribs are uniformly and vertically arranged on the outer wall of the upper cover body.
4. The protective cover for the rag bolt according to claim 3, wherein the upper end of the screw rod cover body is provided with a first groove corresponding to the first sealing ring, and the upper end of the connecting cover body is provided with a second groove corresponding to the second sealing ring.
5. The rag bolt guard of claim 4, wherein the first and second seal rings are both annular rubber pads or O-ring rubber pads.
6. The rag bolt guard of claim 1, wherein the lower end of the nut shield body is provided with a first circumferential flange, and the top edge of the guide slot is provided with a second circumferential flange along the outer wall of the nut shield body.
7. The protective cover for the floor bolt according to claim 1, wherein the intermediate cover body comprises two specifications of a long intermediate cover body and a short intermediate cover body, the inner wall of the long intermediate cover body is provided with 10 screw threads, and the inner wall of the short intermediate cover body is provided with 5 screw threads.
8. The protective cover for the rag bolt according to claim 1, wherein the top surface of the upper cover body is a drop-shaped arc surface structure.
9. The protective cover for the rag bolt according to claim 8, wherein the central area of the top surface of the upper cover body is provided with a through hole filled with anti-corrosion lubricant, and the through hole is provided with a blocking cover matched with the inner diameter of the through hole.
10. The earth bolt protective cover according to claim 1, wherein 10% of fluorescent powder is contained in the solid coloring bar in parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110915769.6A CN113685422A (en) | 2021-08-10 | 2021-08-10 | Anchor bolt protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110915769.6A CN113685422A (en) | 2021-08-10 | 2021-08-10 | Anchor bolt protective cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113685422A true CN113685422A (en) | 2021-11-23 |
Family
ID=78579572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110915769.6A Pending CN113685422A (en) | 2021-08-10 | 2021-08-10 | Anchor bolt protective cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113685422A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116251726A (en) * | 2022-12-09 | 2023-06-13 | 眉山中车紧固件科技有限公司 | Fluorescent surface treatment method for short-tail pull rivets and rivets made therefrom |
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| CN203585040U (en) * | 2013-11-18 | 2014-05-07 | 国家电网公司 | Foundation bolt protective cover |
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| CN110332204A (en) * | 2019-07-25 | 2019-10-15 | 海盐新跃电器有限公司 | An anti-loosening device for anchor bolts |
| CN110671415A (en) * | 2019-10-29 | 2020-01-10 | 国网山西省电力公司阳泉供电公司 | Anti-rust boot for screw ends |
| CN210890634U (en) * | 2019-08-12 | 2020-06-30 | 王勇 | Anchor bolt protection device |
| CN111623023A (en) * | 2020-07-07 | 2020-09-04 | 刘兴丹 | Nut capable of prompting bolt loosening and dust prevention |
| CN211648725U (en) * | 2020-01-19 | 2020-10-09 | 保定华铁电气化供电器材设备有限公司 | Reinforcing sleeve of bolt sealing anti-corrosion pad |
| CN213270649U (en) * | 2020-07-15 | 2021-05-25 | 福建泉州市金正机械有限公司 | Brake caliper bolt capable of being installed quickly |
-
2021
- 2021-08-10 CN CN202110915769.6A patent/CN113685422A/en active Pending
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| CN2786349Y (en) * | 2005-04-19 | 2006-06-07 | 孟宪广 | Bolt protector |
| CN203585040U (en) * | 2013-11-18 | 2014-05-07 | 国家电网公司 | Foundation bolt protective cover |
| CN204198298U (en) * | 2014-10-08 | 2015-03-11 | 重庆市特种设备检测研究院 | A kind of column crane mast section connection structure |
| CN204805280U (en) * | 2015-05-25 | 2015-11-25 | 温州科技职业学院 | A locking rust -resistant sealed cowling for bolt and nut |
| CN204805281U (en) * | 2015-05-25 | 2015-11-25 | 温州科技职业学院 | Double -deck bolt and nut safety cover of scalable regulation formula |
| CN205101372U (en) * | 2015-11-16 | 2016-03-23 | 李伟华 | Bolt protective hood |
| CN105972023A (en) * | 2016-06-26 | 2016-09-28 | 李宝 | Fixing and closing screw with looseness prompting function |
| DE102017003960A1 (en) * | 2016-09-05 | 2018-03-08 | Johannes Burde | Device for indicating elongation and / or rotational release of screw connections |
| CN206347015U (en) * | 2016-12-26 | 2017-07-21 | 上海透克科技有限公司 | A kind of bolt protective cover |
| CN207961233U (en) * | 2018-02-27 | 2018-10-12 | 周福义 | A kind of bolt protective lid of metal material |
| CN208565203U (en) * | 2018-07-02 | 2019-03-01 | 保定华铁电气化供电器材设备有限公司 | A kind of bolt anti-corrosion device |
| CN110332204A (en) * | 2019-07-25 | 2019-10-15 | 海盐新跃电器有限公司 | An anti-loosening device for anchor bolts |
| CN210890634U (en) * | 2019-08-12 | 2020-06-30 | 王勇 | Anchor bolt protection device |
| CN110671415A (en) * | 2019-10-29 | 2020-01-10 | 国网山西省电力公司阳泉供电公司 | Anti-rust boot for screw ends |
| CN211648725U (en) * | 2020-01-19 | 2020-10-09 | 保定华铁电气化供电器材设备有限公司 | Reinforcing sleeve of bolt sealing anti-corrosion pad |
| CN111623023A (en) * | 2020-07-07 | 2020-09-04 | 刘兴丹 | Nut capable of prompting bolt loosening and dust prevention |
| CN213270649U (en) * | 2020-07-15 | 2021-05-25 | 福建泉州市金正机械有限公司 | Brake caliper bolt capable of being installed quickly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116251726A (en) * | 2022-12-09 | 2023-06-13 | 眉山中车紧固件科技有限公司 | Fluorescent surface treatment method for short-tail pull rivets and rivets made therefrom |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211123 |
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| RJ01 | Rejection of invention patent application after publication |