CN201155513Y - T-shaped fixed bolt for box iron - Google Patents
T-shaped fixed bolt for box iron Download PDFInfo
- Publication number
- CN201155513Y CN201155513Y CNU2007203092759U CN200720309275U CN201155513Y CN 201155513 Y CN201155513 Y CN 201155513Y CN U2007203092759 U CNU2007203092759 U CN U2007203092759U CN 200720309275 U CN200720309275 U CN 200720309275U CN 201155513 Y CN201155513 Y CN 201155513Y
- Authority
- CN
- China
- Prior art keywords
- bolt
- channel
- angles
- bolthead
- section steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Connection Of Plates (AREA)
Abstract
The utility model discloses a T-shaped fixing bolt used for channel steel, which consists of a screw and a bolthead fixed at the top part of the screw. The bolthead has four corners, two opposite angles of which are non-round angles, while the other two opposite angles are round angles; the bolthead and the screw are pressed at once to form an integrated body; the bottom surfaces of the two non-round angles of the bolthead are provided with two lug bosses, wherein, the lug bosses are small triangular bodies protruding slightly downward. The utility model has good molding effect, the structure is solid and strong, the manufacturing is easy and convenient, and the nut can be screwed down without any tightening tool, and does not easily slide in the horizontal direction and is capable of locking up in the vertical direction.
Description
Technical field
The utility model relates to a kind of bolt, is specifically related to a kind of channel-section steel T font fixing bolt.
Background technique
Along with the development of domestic Steel Structure Industry, when building steel-structure factory building, mansion, railway etc. and build the place, use channel-section steel and fixing nut, the bolt used of channel-section steel in a large number.Plain bolt be mostly beyond hexagon head and hexagon socket head be as the criterion, the time spent is to mix nut.When tightening, normally respectively use an instrument such as spanner at bolt head and nut, reverse the screwing of phase mutually synchronization fixes.But, in the channel-section steel of some special construction sites, owing to be subjected to the restriction in space, the bolt head position does not have enough spaces to use setting tools such as spanner, can only unilaterally carry out the action of tightening of nut, owing to there is not the retention force of bolt head to support, so nut can not be tightened fully, exist and become flexible, thereby cause bolt and nut not reach predetermined fastening effect, long-time use back slip easily comes off.
Summary of the invention
The utility model is in order to solve the deficiencies in the prior art, provide a kind of reasonable in design, simple in structure, need not setting tool just can be with the channel-section steel of nut screwing clamping with T font fixing bolt.
The utility model overcomes the above problems the technological scheme that is adopted: a kind of channel-section steel T font fixing bolt, comprise screw rod and the bolt head that is fixed on above the screw rod, four angles are arranged above the described bolt head, and wherein two diagonal angles are non-fillet, and two other diagonal angle is a fillet.
Described bolt head and screw rod are once to strike out one.
Two side lower surfaces of described bolt head are provided with two excrescences.
Described excrescence is downward little outstanding triangle body.
Compare with existing product, the beneficial effects of the utility model are:
1, the utility model is heat forged punching press once-through, and good forming effect solidly firmly and is produced easyly, and bolt has the density of material height, high-intensity performance.
2, easy to use, only need put into channel-section steel after, need not setting tool, dextrorotation turn 90 degrees, and can fix voluntarily.
3, when bolt revolve turn 90 degrees maintain static after, along with outer nut with gradually vertically in the rundown process of bolt, little outstanding triangle body can rely on three to wrestle, and embeds to be stuck on the channel-section steel, keeps bolt laterally not slide.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the plan view of Fig. 1.
Among the figure: 1 nut, 2 fillets, 3 screw rods, 4 non-fillets, 5 excrescences.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 2, a kind of channel-section steel T font fixing bolt, comprise screw rod 3 and the bolt head 1 that is fixed on above the screw rod 3, four angles are arranged above the bolt head 1, wherein two diagonal angles are non-fillet 4, two other diagonal angle is a fillet 2, and non-fillet 4 lower surfaces of two sides of bolt head 1 are provided with two excrescences 5, and excrescence 5 is downward little outstanding triangle body.
One group of diagonal angle of bolt head 1 is designed to semicircle fillet 2, is convenient to rotation, in bolt is put channel-section steel into, then nut 1 dextrorotation is turn 90 degrees.Owing to be designed to semicircle fillet, do not stop during rotation that two other diagonal angle is non-fillet, has angle, preferred 90 degree are for best, after nut 1 rotates to certain angle, can produce barrier effect, bolt can not be rotated again, exert oneself again clockwise, bolt is fixing more, therefore need not setting tool such as spanner and fix, use nut to screw, keep the locking of longitudinal force at the opposite side of screw rod 3 at the bolt head 1 of bolt.Exert oneself counterclockwise, but the easy removal bolt.
In addition, be provided with two little outstanding triangle bodies at the both lateral sides edge of bolt head 1 lower surface, when bolt revolve turn 90 degrees maintain static after, along with tightening gradually of nut, two little outstanding triangle bodies can rely on three to wrestle, and embed to be stuck on the channel-section steel, keep laterally not sliding.
Above-described embodiment, the utility model embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection domain of the present utility model.
Claims (5)
1, a kind of channel-section steel comprises screw rod and the bolt head that is fixed on above the screw rod with T font fixing bolt, it is characterized in that four angles are arranged above the described bolt head, and wherein two diagonal angles are non-fillet, and two other diagonal angle is a fillet.
2, a kind of channel-section steel according to claim 1 is characterized in that with T font fixing bolt described non-fillet is the right angle.
3, a kind of channel-section steel according to claim 1 is characterized in that with T font fixing bolt described bolt head and screw rod are once to strike out one.
4, according to claim 1,2 or 3 described a kind of channel-section steels T font fixing bolts, it is characterized in that the both sides lower surface of described bolt head is provided with two excrescences.
5, a kind of channel-section steel according to claim 4 is characterized in that with T font fixing bolt, and described excrescence is downward little outstanding triangle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203092759U CN201155513Y (en) | 2007-12-29 | 2007-12-29 | T-shaped fixed bolt for box iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203092759U CN201155513Y (en) | 2007-12-29 | 2007-12-29 | T-shaped fixed bolt for box iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201155513Y true CN201155513Y (en) | 2008-11-26 |
Family
ID=40103296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203092759U Expired - Fee Related CN201155513Y (en) | 2007-12-29 | 2007-12-29 | T-shaped fixed bolt for box iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201155513Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480693B (en) * | 2009-01-20 | 2010-06-23 | 苏文章 | Punch forming method of spiral head with convex wing |
| CN102551902A (en) * | 2010-12-23 | 2012-07-11 | 斯特劳曼控股公司 | Improved screw head |
| CN102551902B (en) * | 2010-12-23 | 2016-12-14 | 斯特劳曼控股公司 | Fastening system |
| CN110158810A (en) * | 2019-04-19 | 2019-08-23 | 天津市思特玻璃有限公司 | A kind of glass fireproof partition |
-
2007
- 2007-12-29 CN CNU2007203092759U patent/CN201155513Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480693B (en) * | 2009-01-20 | 2010-06-23 | 苏文章 | Punch forming method of spiral head with convex wing |
| CN102551902A (en) * | 2010-12-23 | 2012-07-11 | 斯特劳曼控股公司 | Improved screw head |
| CN102551902B (en) * | 2010-12-23 | 2016-12-14 | 斯特劳曼控股公司 | Fastening system |
| CN110158810A (en) * | 2019-04-19 | 2019-08-23 | 天津市思特玻璃有限公司 | A kind of glass fireproof partition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201155513Y (en) | T-shaped fixed bolt for box iron | |
| CN201065647Y (en) | Big steel formwork edge joint gun-type fastening member | |
| CN204267473U (en) | A kind of cement bolt | |
| CN203062658U (en) | Wrench | |
| CN203097202U (en) | Rotating clamping key mounting structure | |
| CN210087787U (en) | Eccentric adjusting bolt | |
| CN202579515U (en) | Internally-expanded expansion bolt used for installation | |
| CN201924595U (en) | Beam side template section steel fixture | |
| CN210889676U (en) | Novel fastener | |
| CN204477020U (en) | A kind of hex head bolt | |
| CN114033785A (en) | Take locking nut assembly that moves of tenon fourth of twelve earthly branches structure of tenon screw | |
| CN210034108U (en) | Bolt lengthening device | |
| CN210732329U (en) | Mounting tool of unilateral bolt | |
| CN203957076U (en) | A kind of inner corner trim die clamper for concrete blinding | |
| CN209262013U (en) | Anti-loosening nut | |
| CN201288749Y (en) | Rapid bolt pair | |
| CN201297319Y (en) | Screw | |
| CN203756707U (en) | Anti-burglary nut and supporting tools | |
| CN205101349U (en) | Screw of building scaffold | |
| CN217976950U (en) | Bolt | |
| CN203957104U (en) | A kind of concrete blinding connects pipe close | |
| CN206175436U (en) | Bolt with hexagonal groove threaded end | |
| CN203363592U (en) | Corner fixation device | |
| CN202185879U (en) | Wrench auxiliary device for disassembling bolt | |
| CN114810791B (en) | Self-insertion type fastening structure with double threads for power transmission and transformation system and fastening method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20101229 |