CN109680974B - Anchor bolt thread protective cover for steel structure construction - Google Patents
Anchor bolt thread protective cover for steel structure construction Download PDFInfo
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- CN109680974B CN109680974B CN201811560968.4A CN201811560968A CN109680974B CN 109680974 B CN109680974 B CN 109680974B CN 201811560968 A CN201811560968 A CN 201811560968A CN 109680974 B CN109680974 B CN 109680974B
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- thread
- fixing
- plate
- side wall
- cylinder
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/30—Safety or protective measures preventing damage to building parts or finishing work during construction against mechanical damage or dirt, e.g. guard covers of stairs
Abstract
The invention relates to an anchor bolt screw thread protective cover for steel structure construction, which comprises a bottom plate, screw threads and a protective cover, wherein the screw threads are uniformly arranged on the upper end surface of the bottom plate, the protective cover is sleeved at the outer end of the screw threads, the protective cover comprises a fixing mechanism and a protective mechanism, the protective mechanism comprises a supporting cylinder, the supporting cylinder is of an internal hollow structure, a fixing hole is formed in the middle of the side wall of the supporting cylinder, an upper cover plate is arranged on the upper end surface of the supporting cylinder, a lower cover plate is arranged on the lower end surface of the supporting cylinder, and a through hole is formed in. The invention can solve the problems of thread damage, insufficient thread reserved length, thread bending due to heavy object collision, increased cost caused by a disposable plastic protective cover of the thread, resource waste and the like when the steel structure column base is poured with concrete, can realize the protective function of the column base anchor bolt thread, and has the advantages of convenient installation and disassembly of the thread protective cover, weight collision prevention of the thread, complete thread protection, adjustable thread reserved length and cyclic utilization.
Description
Technical Field
The invention relates to the field of steel structures, in particular to an anchor bolt screw thread protective cover for steel structure construction.
Background
Steel structures are structures composed of steel materials and are one of the main building structure types. The steel structure has the advantages of high material strength, light weight, good steel toughness and plasticity, high installation mechanization degree, good sealing property, heat resistance, reusability and the like, and is widely applied to the fields of large-scale plants, venues, super-high buildings and the like.
The steel construction work process is simple and convenient, but the error just is more troublesome nevertheless appearing, and under current steel construction conditions, the installation of steel construction often has following several problems:
(1): the screw thread of the anchor bolt is not protected by any protection measure in the concrete fixing process of the column base anchor bolt, so that the screw thread is damaged, and the installation of a steel column bottom plate is difficult in the later period;
(2): too many screw threads are covered when the column base anchor bolt is fixed with concrete, so that the reserved length of the screw threads is not enough;
(3): in the construction process, the anchor bolt screw thread is not aligned with the bolt hole due to the fact that the anchor bolt screw thread is collided and bent;
(4): a few construction units can simply protect the screw thread by using the plastic disposable protective shell when concrete is poured, the protective effect is poor, the cost is increased to a certain extent by disposable use, and the waste of resources is caused.
Regarding the problem of the steel structure screw thread, some exploration and practice exist in China, and a Chinese utility model patent with the patent application number of 201721126748.1 discloses a screw thread protection device which can effectively prevent the screw thread from being worn due to the falling of a sheath caused by mutual dislocation and extrusion among steel structural members in transportation; the Chinese patent with the patent application number of 201610041360.5 discloses a temporary fixing sleeve frame for preventing relative displacement generated in the construction of a steel structure anchor bolt, which can prevent the anchor bolt from relatively moving in the construction process, particularly in the concrete pouring stage; the method is applicable to both before and after binding of the steel bars, and has a wide application range; protecting the screw thread of the anchor bolt, and well protecting a finished product; the temporary fixing sleeve frame can be repeatedly used, the material utilization rate is improved, particularly, the invention patent with the application number of 201610041360.5 has the advantages that 1 is possibly existed in the use process, the installation is difficult or the dismounting is difficult after the concrete pouring is completed, 2, the screw thread is only protected, when a heavy object collides with the screw thread, the screw thread has no any protective measures, and only more screw threads are bent. 3. Different constructions require different screw thread spacing, which causes great inconvenience in use.
Disclosure of Invention
In order to solve the problems, the invention provides an anchor bolt thread protective cover for steel structure construction, which can solve the problems of thread damage, insufficient thread reserved length, thread bending caused by heavy object collision, cost increase caused by a disposable plastic protective cover for the thread, resource waste and the like when concrete is poured on a steel structure column base, can realize the protective function of the anchor bolt thread of the column base, and has the advantages of convenient installation and disassembly of the thread protective cover, heavy object collision prevention of the thread, complete thread protection, adjustable thread reserved length and recycling.
In order to achieve the purpose, the invention adopts the following technical scheme that the anchor bolt screw thread protective cover for steel structure construction comprises a bottom plate, screw threads and a protective cover, wherein the screw threads are uniformly arranged on the upper end surface of the bottom plate, and the protective cover is sleeved at the outer ends of the screw threads.
The protective cover comprises a fixing mechanism and a protective mechanism, the protective mechanism comprises a supporting cylinder, the supporting cylinder is of an internal hollow structure, a fixing hole is formed in the middle of the side wall of the supporting cylinder, an upper cover plate is installed on the upper end face of the supporting cylinder, a lower cover plate is installed on the lower end face of the supporting cylinder, a through hole is formed in the middle of the lower cover plate, the diameter of the through hole is the same as the inner diameter of the supporting cylinder, a fixing cylinder is installed between the upper cover plate and the lower cover plate, the fixing cylinder is of a hollow structure, the diameter of the fixing cylinder is larger than that of the supporting cylinder, fixing mechanisms are evenly arranged between the outer side wall of the supporting cylinder and the inner side wall of the fixing cylinder along the circumferential direction of the fixing cylinder, protective springs are evenly installed on the outer side wall of the fixing cylinder along the circumferential direction of the fixing cylinder, a protective plate is installed at the right end of, can adsorb some impact, remaining impact transmits protection spring through the guard plate on, protection spring can reduce the impact of heavy object again, from protection spring to between the screw thread protection machanism and a supporting cylinder in addition, can be very big avoid bending of screw thread to damage to improve the protective capacities of screw thread greatly, prevent that the collision leads to the screw thread to bend.
The fixing mechanism comprises a fixing plate, the fixing plate is installed at the lower end between the outer side wall of the supporting cylinder and the inner side wall of the fixing cylinder, a threaded hole is formed in the middle of the fixing plate, a bolt is connected with the inner thread of the threaded hole, the upper end of the bolt penetrates through the upper cover plate through a bearing, a fixing branched chain is connected with the middle of the side wall of the bolt through threads, and a rotating branched chain is installed on the upper end face of.
As a preferred technical scheme of the invention, the fixed branched chain comprises a thread table, the middle part of the side wall of the bolt is provided with the thread table, the middle part of the side wall of the thread table is meshed with a thread plate, the thread table is in a round table structure, the diameter of the thread table is gradually reduced from top to bottom, thread grooves are uniformly arranged on the side wall of the thread table, the thread plate is in an arc structure, the radian of the thread plate is matched with that of the thread table, the left end of the thread plate is provided with a supporting plate, the left end of the supporting plate is provided with a fixed rod, the fixed rod penetrates through a fixed hole in a sliding fit manner, a reset spring is arranged between the outer side wall of the supporting cylinder and the left end surface of the supporting plate, the left end surface of the fixed rod is provided with a fixed clamp plate, the fixed clamp plate is in an arc structure, the left end surface of the, under the effect of fixed plate, the bolt rotates and can drive thread table downstream, and thread table downstream can drive the dead lever and move left, and the fixed cardboard of dead lever left end face can laminate mutually with the screw thread, can fix the protection casing to the screw thread that needs protected to can protect the screw thread as required length, also avoid the screw thread damage simultaneously.
As a preferred technical scheme of the invention, the rotating branched chain comprises a driven fluted disc, the upper end surface of the bolt is provided with the driven fluted disc, the left end of the driven fluted disc is engaged with a driving fluted disc, the lower end surface of the driving fluted disc is arranged on the upper end surface of the supporting rod through a bearing, the lower end of the supporting rod is arranged in the middle of the upper end surface of the upper cover plate, and the front end of the upper end surface of the driving fluted disc is provided with a rocker.
Preparation before the protection cover is fixed: adjusting the protective cover to a proper position according to the requirement of the reserved screw thread length;
fixing the protective cover: the rotary rocker drives the driven fluted disc to rotate through the driving fluted disc, so that the bolt can be driven to rotate, under the action of the fixed plate, the bolt can drive the thread table to move downwards, the thread table moves downwards to drive the fixed rod to move leftwards, the fixed clamping plate on the left end face of the fixed rod can be attached to the screw thread, and the protective cover can be fixed to the screw thread to be protected;
the work of the protection mechanism: when a heavy object collides with the screw thread, the heavy object collides with the protective pad firstly, the protective pad is made of rubber and can absorb a part of collision force, the rest collision force is transmitted to the protective spring through the protective plate, the protective spring can reduce the collision force of the heavy object, and a protective mechanism and a support cylinder are arranged between the protective spring and the screw thread, so that the bending damage of the screw thread can be greatly avoided;
disassembling the protective cover: after the use is accomplished, only need the reversal rotation rocker, fixed establishment is not hard up, can take off the protection casing.
The work flow can solve the problems that the thread is damaged when the steel structure column base is poured with concrete, the reserved length of the thread is not enough, the thread is bent due to collision of a heavy object, the cost is increased due to the disposable plastic protective cover of the thread, the resource is wasted, and the like, and the protection function of the column base anchor bolt thread can be realized.
The invention has the beneficial effects that:
the invention can solve the problems of thread damage, insufficient thread reserved length, increased cost caused by the fact that the thread is collided and bent by a heavy object and the disposable plastic protective cover of the thread is used for preventing the thread from being damaged when the steel structure column base is poured with concrete, resource waste and the like, can realize the protective function of the column base anchor bolt thread, and has the advantages of convenient installation and disassembly of the thread protective cover, weight collision prevention of the thread, complete thread protection, adjustable thread reserved length and cyclic utilization.
The protection mechanism is arranged, and can absorb most of the collision force, so that the protection capability of the screw thread is improved;
the protective cover is provided with the fixing mechanism, the fixing mechanism can be adjusted to a proper position according to the requirement of the reserved length of the screw thread, and meanwhile, the fixing mechanism enables the protective cover to be very convenient to mount and dismount;
the invention can be recycled, avoids the use of plastic protective shells, reduces the construction cost and saves resources.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1 of the present invention;
fig. 3 is an enlarged view of the invention from the direction a of fig. 2.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 3, an anchor bolt screw thread protective cover for steel structure construction comprises a base plate 1, screw threads 2 and a protective cover 3, the screw threads 2 are uniformly installed on the upper end face of the base plate 1, and the protective cover 3 is sleeved on the outer ends of the screw threads 2.
The protective cover 3 comprises a fixing mechanism 31 and a protection mechanism 32, the protection mechanism 32 comprises a supporting cylinder 321, the supporting cylinder 321 is of an internal hollow structure, a fixing hole is formed in the middle of the side wall of the supporting cylinder 321, an upper cover plate 322 is installed on the upper end face of the supporting cylinder 321, a lower cover plate 323 is installed on the lower end face of the supporting cylinder 321, a through hole is formed in the middle of the lower cover plate 323, the diameter of the through hole is the same as the inner diameter of the supporting cylinder 321, a fixing cylinder 324 is installed between the upper cover plate 322 and the lower cover plate 323, the fixing cylinder 324 is of a hollow structure, the diameter of the fixing cylinder 324 is larger than that of the supporting cylinder 321, the fixing mechanism 31 is evenly arranged between the outer side wall of the supporting cylinder 321 and the inner side wall of the fixing cylinder 324 along the circumferential direction, a protection spring 325 is evenly installed on the outer side wall of the fixing cylinder 324 along the circumferential, when the heavy object collides the screw thread 2, the heavy object at first can collide with protection pad 327 mutually, protection pad 327 is the rubber material, can adsorb partly collision power, remaining collision power transmits protection spring 325 through protection plate 326 on, protection spring 325 can reduce the collision power of heavy object again, from protection spring 325 to screw thread 2 between protection mechanism 32 and support section of thick bamboo 321 in addition, can be very big avoid the bending damage of screw thread 2 to the protective capacities of screw thread 2 has been improved greatly, prevent that the collision from leading to screw thread 2 to bend.
The fixing mechanism 31 includes a fixing plate 311, the fixing plate 311 is installed at the lower end between the outer side wall of the supporting cylinder 321 and the inner side wall of the fixing cylinder 324, a threaded hole is formed in the middle of the fixing plate 311, a bolt 312 is connected in the threaded hole, the upper end of the bolt 312 penetrates through the upper cover plate 322 through a bearing, a fixing branched chain 33 is connected in the middle of the side wall of the bolt 312 in a threaded manner, and a rotating branched chain 34 is installed on the upper end face of the bolt 312.
The fixed branched chain 33 comprises a thread table 331, a thread table 331 is installed in the middle of the side wall of the bolt 312, a thread plate 332 is meshed in the middle of the side wall of the thread table 331, the thread table 331 is in a circular truncated cone structure, the diameter of the thread table 331 is gradually reduced from top to bottom, thread grooves are uniformly formed in the side wall of the thread table 331, the thread plate 332 is in an arc structure, the radian of the thread plate 332 is matched with that of the thread table 331, a supporting plate 333 is installed at the left end of the thread plate 332, a fixed rod 334 is installed at the left end of the supporting plate 333, the fixed rod 334 penetrates through a fixed hole in a sliding fit mode, a reset spring 335 is installed between the outer side wall of the supporting cylinder 321 and the left end face of the supporting plate 333, a fixed clamping plate 336 is installed at the left end face of the fixed rod 334, the fixed clamping plate 336 is in an arc structure, and, adjust suitable position with protection casing 3, under the effect of fixed plate 311, bolt 312 rotates and can drive thread table 331 and move down, thread table 331 moves down and can drive dead lever 334 and move left, the fixed cardboard 336 of dead lever 334 left end face can laminate with screw thread 2 mutually, can be fixed on the screw thread 2 that needs the protection with protection casing 3 to can protect screw thread 2 as required length, also avoided screw thread 2 to damage simultaneously.
The rotating branched chain 34 comprises a driven fluted disc 341, the driven fluted disc 341 is installed on the upper end surface of the bolt 312, a driving fluted disc 342 is meshed at the left end of the driven fluted disc 341, the lower end surface of the driving fluted disc 342 is installed on the upper end surface of a supporting rod 343 through a bearing, the lower end of the supporting rod 343 is installed in the middle of the upper end surface of the upper cover plate 322, a rocker 344 is installed at the front end of the upper end surface of the driving fluted disc 342, during operation, the rotating rocker 344 drives the driven fluted disc 341 to rotate through the driving fluted disc 342, the bolt 312 can be driven to rotate, the protective cover 3 can be fixed, after use is completed, the rocker 344 only needs to be rotated reversely, the fixing mechanism 31 is not flexible, the protective cover 3 can be taken down, so that the protective cover 3 is very convenient to install and disassemble, the protective cover 3.
Preparation before the shield 3 is fixed: adjusting the protective cover 3 to a proper position according to the requirement of the length of the reserved screw thread 2;
fixing of the protective cover 3: the rotating rocker 344 drives the driven fluted disc 341 to rotate through the driving fluted disc 342, so as to drive the bolt 312 to rotate, under the action of the fixed plate 311, the bolt 312 rotates to drive the thread table 331 to move downwards, the thread table 331 moves downwards to drive the fixed rod 334 to move leftwards, the fixed clamping plate 336 on the left end surface of the fixed rod 334 is attached to the screw thread 2, and the protective cover 3 can be fixed on the screw thread 2 to be protected;
operation of the guard mechanism 32: when a heavy object collides with the screw thread 2, the heavy object collides with the protective pad 327 at first, the protective pad 327 is made of rubber and can absorb a part of collision force, the rest of collision force is transmitted to the protective spring 325 through the protective plate 326, the protective spring 325 can reduce the collision force of the heavy object, and the protective mechanism 32 and the support cylinder 321 are arranged between the protective spring 325 and the screw thread 2, so that the bending damage of the screw thread 2 can be greatly avoided;
disassembling the protective cover 3: when the use is finished, the protective cover 3 can be taken down only by reversely rotating the rocker 344 and loosening the fixing mechanism 31.
The work flow solves the problems that the thread is damaged, the reserved length of the thread is not enough, the thread is collided and bent by a heavy object, the cost is increased and resources are wasted due to the disposable plastic protective cover of the thread when the steel structure column base is used for pouring concrete, and the like, and the aim is fulfilled.
The invention has been described in detail with reference to the embodiments illustrated in the drawings, and it is to be understood that variations and equivalent arrangements may be resorted to by those skilled in the art having the benefit of the teachings herein.
Claims (2)
1. The utility model provides a steel construction is with crab-bolt screw thread protection casing, includes bottom plate (1), screw thread (2) and protection casing (3), its characterized in that: the upper end surface of the bottom plate (1) is uniformly provided with screw threads (2), and the outer end of each screw thread (2) is sleeved with a protective cover (3); wherein:
the protective cover (3) comprises a fixing mechanism (31) and a protective mechanism (32);
the protection mechanism (32) comprises a support cylinder (321), the support cylinder (321) is of an internal hollow structure, a fixing hole is formed in the middle of the side wall of the support cylinder (321), an upper cover plate (322) is installed on the upper end face of the support cylinder (321), a lower cover plate (323) is installed on the lower end face of the support cylinder (321), a through hole is formed in the middle of the lower cover plate (323), the diameter of the through hole is the same as the inner diameter of the support cylinder (321), a fixing cylinder (324) is installed between the upper cover plate (322) and the lower cover plate (323), the fixing cylinder (324) is of a hollow structure, the diameter of the fixing cylinder (324) is larger than that of the support cylinder (321), fixing mechanisms (31) are evenly arranged between the outer side wall of the support cylinder (321) and the inner side wall of the fixing cylinder (324) along the circumferential direction of the fixing cylinder, protection springs (325) are evenly installed on the outer side wall of the fixing cylinder (, a protective pad (327) is sleeved on the protective plate (326);
the fixing mechanism (31) comprises a fixing plate (311), the fixing plate (311) is installed at the lower end between the outer side wall of the supporting cylinder (321) and the inner side wall of the fixing cylinder (324), a threaded hole is formed in the middle of the fixing plate (311), a bolt (312) is connected to the threaded hole in a threaded manner, the upper end of the bolt (312) penetrates through the upper cover plate (322) through a bearing, a fixing branch chain (33) is connected to the middle of the side wall of the bolt (312) in a threaded manner, and a rotating branch chain (34) is installed on the upper end;
the fixing branch chain (33) comprises a thread table (331), the thread table (331) is installed in the middle of the side wall of the bolt (312), a thread plate (332) is meshed in the middle of the side wall of the thread table (331), a supporting plate (333) is installed at the left end of the thread plate (332), a fixing rod (334) is installed at the left end of the supporting plate (333), the fixing rod (334) penetrates through a fixing hole in a sliding fit mode, a reset spring (335) is installed between the outer side wall of the supporting cylinder (321) and the left end face of the supporting plate (333), a fixing clamping plate (336) is installed at the left end face of the fixing rod (334), the fixing clamping plate (336) is of an arc-shaped structure, and a fixing tooth (337) is;
the rotary branched chain (34) comprises a driven fluted disc (341), the driven fluted disc (341) is installed on the upper end face of the bolt (312), a driving fluted disc (342) is meshed at the left end of the driven fluted disc (341), the lower end face of the driving fluted disc (342) is installed on the upper end face of the supporting rod (343) through a bearing, the lower end of the supporting rod (343) is installed in the middle of the upper end face of the upper cover plate (322), and a rocker (344) is installed at the front end of the upper end face of the driving fluted disc (342).
2. The anchor bolt thread protective cover for the steel structure construction according to claim 1, wherein: the thread table (331) is of a circular truncated cone structure, the diameter of the thread table (331) is gradually reduced from top to bottom, thread grooves are uniformly formed in the side wall of the thread table (331), the thread plate (332) is of an arc-shaped structure, and the radian of the thread plate (332) is matched with that of the thread table (331).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811560968.4A CN109680974B (en) | 2018-12-20 | 2018-12-20 | Anchor bolt thread protective cover for steel structure construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811560968.4A CN109680974B (en) | 2018-12-20 | 2018-12-20 | Anchor bolt thread protective cover for steel structure construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109680974A CN109680974A (en) | 2019-04-26 |
| CN109680974B true CN109680974B (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811560968.4A Active CN109680974B (en) | 2018-12-20 | 2018-12-20 | Anchor bolt thread protective cover for steel structure construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109680974B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1577946A (en) * | 1976-05-28 | 1980-10-29 | Tucker Fasteners Ltd | Protective coverings for externally threaded members |
| CN203022359U (en) * | 2013-01-07 | 2013-06-26 | 中国十七冶集团有限公司 | Simple protecting device during installation of embedded bolts |
| CN105696800A (en) * | 2016-01-21 | 2016-06-22 | 中建钢构有限公司 | Temporary fixed sleeve frame for preventing relative displacement generated during construction of steel-structured anchor bolts |
| CN107131196A (en) * | 2017-05-27 | 2017-09-05 | 华信咨询设计研究院有限公司 | A kind of sill anchor protection device and guard method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7174689B2 (en) * | 2003-12-05 | 2007-02-13 | Building Construction Solutions, Inc. | Concrete anchor float |
-
2018
- 2018-12-20 CN CN201811560968.4A patent/CN109680974B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1577946A (en) * | 1976-05-28 | 1980-10-29 | Tucker Fasteners Ltd | Protective coverings for externally threaded members |
| CN203022359U (en) * | 2013-01-07 | 2013-06-26 | 中国十七冶集团有限公司 | Simple protecting device during installation of embedded bolts |
| CN105696800A (en) * | 2016-01-21 | 2016-06-22 | 中建钢构有限公司 | Temporary fixed sleeve frame for preventing relative displacement generated during construction of steel-structured anchor bolts |
| CN107131196A (en) * | 2017-05-27 | 2017-09-05 | 华信咨询设计研究院有限公司 | A kind of sill anchor protection device and guard method |
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| CN109680974A (en) | 2019-04-26 |
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