CN201747739U - Special bolt and fastening device with the same - Google Patents
Special bolt and fastening device with the same Download PDFInfo
- Publication number
- CN201747739U CN201747739U CN2010202604639U CN201020260463U CN201747739U CN 201747739 U CN201747739 U CN 201747739U CN 2010202604639 U CN2010202604639 U CN 2010202604639U CN 201020260463 U CN201020260463 U CN 201020260463U CN 201747739 U CN201747739 U CN 201747739U
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- hole
- screw bolt
- special shaped
- shaped screw
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Abstract
The utility model relates to a special bolt which is characterized by comprising a bolt body and screw rods on both ends of the bolt body; in addition, the cross sections of both ends of the bolt body which are adjacent to the screw rods are non-circular; and axial projection of the middle cross section of the bolt body is arranged in the non-circular axial projection of both ends of the bolt body. Compared with the prior art, the special bolt has simple structure, is convenient to install and can improve the strength and rigidity of a connected nesting composite profile component; the fastening device which adopts the special bolt not only plays a supporting role but also plays a reinforcing role, and can effectively prevent the nesting composite profile component from deforming; in addition, a through hole for installing the fastening device can be arranged at any position along the height direction of the nesting composite profile component, fixation can be realized only by passing the special bolt through the through hole and rotating and transplacing the same, so that the operation is simple and fast, the disassembly is convenient, and the installation of the fastening device is not restricted by the size and the structure of the composite profile component.
Description
Technical field
The utility model relates to a kind of special shaped screw bolt, and the application of this special shaped screw bolt in the securing means of nested composite section material member.
Background technique
In the prior art, used carrying crossbeam in the equipment such as multi-storied garage underframe, storage rack and body member structure, be connected beam column members such as column and mostly be profile structure, firsthand standard sections on the market is used in to lack aesthetic feeling on the product because shape of cross section is simple, structure is single and appearance quality is poor; And crossbeam or column during the standard sections length of buying on the market is generally used than reality are long a lot, need unnecessary length is clipped, so in whole course of working, the tailing of standard sections will be cut off a lot, and waste of raw materials is serious, and stock utilization is low.
In order to save material, reduce production costs, at present nested composite section materials that adopt replace standard sections to use as the beam column of storage rack and garage underframe more.Common nested composite section material adopts thin roll bending as raw material and cold rolling first member and second member that is shaped to two identical sections usually, be nested combination between first member and second member, second member is cylinder with staggered the filling the span of a man's arms of first member behind the Rotate 180 degree, the horizontal edge (or vertical edge) of the member of winning can be fitted with the corresponding horizontal edge of second member (or vertical edge) respectively.
But, horizontal edge (or vertical edge) after first member and second member are fitted is a double layer construction, throw off in order to prevent first member and second member, the fill the span of a man's arms intensity of beam of assurance, traditional way is to adopt the double-deck horizontal edge (or double-deck vertical edge) after welding technology will be fitted fixing, yet, adopt welding procedure to stay crator easily and influence attractive in appearance, on the other hand because beam column is the long strip structure, soldering tip can't extend into the intermediate portion of beam column, and the double layer construction in neutral position is welded to connect, in addition, welding can only be played and reinforce double-deck effect, can't play the effect of supporting the nested composite section material inner chamber, makes nested composite section material be easy to generate malformation because of inner chamber hollow; In addition, the cavity that adopts tube-in-tube structure to insert nested composite section material is also arranged at present, the two ends of sleeve are resisted against respectively on the double-deck corresponding inwall, thereby play the double action that supports and reinforce, but there are same problem in mode that sleeve is reinforced and welding, be exactly that sleeve can only be arranged at the two ends of nested composite section material member near opening, beam column for the long strip structure with nesting type composite structure, sleeve is difficult to extend into the medium position of beam column cavity, the double layer construction in beam column neutral position just can't be realized reinforcing, and then influences the intensity of nested composite section material.
The model utility content
First technical problem to be solved in the utility model is to provide a kind of easy for installation, simple to operate and can improve the special shaped screw bolt of composite material stiffness of structural member and intensity effectively at above-mentioned prior art present situation.
The utility model solves the technological scheme that above-mentioned first technical problem adopted: this special shaped screw bolt, it is characterized in that: described special shaped screw bolt includes body and is arranged on the screw rod at these body two ends, and, two cross section of the described body of contiguous screw rod is non-circular, and the axis projection of cross section is positioned at the non-circular axis projection at described body two in this body.
In such scheme, so long as non-circular cross sections can be as the cross section at special shaped screw bolt body two of the application, as oval shape or rectangular or ellipse or square or triangle or rhombus or trapezoidal or greater than the polygonal on four limits, but consider the bulk strength of special shaped screw bolt and the convenience of processing, the middle cross section of body is good with the cross section that is equal to two, this moment, the body of special shaped screw bolt was a uniform section, just the cross section integral body of body can be oval shape or rectangular or ellipse or square or triangle or rhombus or trapezoidal or greater than the polygonal on four limits, in above-mentioned noncircular cross section, serve as preferred with oval shape or rectangular again wherein, these two kinds of sectional shapes can guarantee that special shaped screw bolt has bigger area of contact after installation.
As further preferred, the termination of described screw rod also has the sign groove that in axial direction is provided with, and the length direction of the notch direction of this sign groove and the body cross-section of described special shaped screw bolt is consistent.
Second technical problem to be solved in the utility model is to provide a kind of securing means that adopts above-mentioned special shaped screw bolt at above-mentioned prior art present situation, the installation of this securing means is simple, processing ease, can improve the intensity and the rigidity of nested composite section material member effectively.
The utility model solves above-mentioned second technological scheme that technical problem adopted: this securing means is installed on the nested composite section material member, described nested composite section material member includes first member and second member, identical and interlaced the filling the span of a man's arms of the geomery of described first member and second member becomes the cylinder with hollow cavity, wherein, described first member has first side and the second side that is arranged in parallel, described second member has the 3rd side and the four side that is arranged in parallel, the corresponding applying of the 3rd side of the first side of described first member and second member forms first group of double-deck welt, and corresponding applying of the four side of the second side of described first member and second member forms second group of double-deck welt; It is characterized in that: described securing means includes described special shaped screw bolt and is connected the nut at these special shaped screw bolt two ends, offer first through hole on described first group of double-deck welt, offer second through hole that aligns with described first through hole on described second group of double-deck welt, the shape size of described first through hole and second through hole is suitable with body two shape of cross section size of described special shaped screw bolt respectively, described special shaped screw bolt is arranged in described first through hole, within second through hole, and, the end face at body two of described special shaped screw bolt respectively with described first through hole, the interior edge face of second through hole is rotary shifted to offset, the described screw rod that is exposed to outside the described nested composite section material member then is connected with described nut thread, the interior edge face of described nut and described first through hole, the exterior edge face of second through hole is close to.
For the end face that increases nut and the area of contact between the nested composite section material member outer wall, thereby the impacting force of assurance also improves join strength, described nut can be hexagon nut or sides nut, also be provided with between the exterior edge face of described nut interior edge face and described first through hole, second through hole and be used to increase the round tablet that is adjacent to area, described compressing tablet and described nut are integral piece.
In order to prevent to rotate after special shaped screw bolt from inserting in first through hole and second through hole, above-mentioned securing means also includes the stop cover, described stop cover has can be with the suitable head of described screw rod and along the axially extended pin of this head, described pin is inserted in the end face at described body two with respect to described first through hole, in the slit after the interior edge face of second through hole is rotary shifted, the described screw rod that is exposed to outside the described nested composite section material member is inserted among the head of described stop cover, described nut thread is connected on the described screw rod, and the exterior edge face of the interior edge face of this nut and described stop cover offsets.Because there is the slit with respect to the interior edge face of first through hole, second through hole in the body interior edge face of special shaped screw bolt after rotary shifted, the pin of stop cover just in time can insert in the slit suitable with it, make special shaped screw bolt to rotate, the stop cover can be compressed by nut, guarantee the reliability that connects.
In order to improve connection reliability, avoid becoming flexible between nut and the stop cover, can also be provided with anti-skidding packing ring between described nut and the described stop cover.
The cross section at body two can be any non-circular cross sections, such non-circular cross sections has a lot, as oval shape or rectangular or ellipse or square or triangle or rhombus or trapezoidal or greater than the polygonal on four limits etc., but consider the bulk strength of special shaped screw bolt and the convenience of processing, the middle cross section of body is good with the cross section that is equal to two, at this moment, the body of special shaped screw bolt is uniform section, be good as body cross-section preferably with oval shape or rectangular, after these two kinds of sectional shapes can be guaranteed to install, body two end surfaces and first through hole of special shaped screw bolt, have bigger area of contact between the interior edge face of second through hole, guarantee the bulk strength and the rigidity of nested composite section material member better.
The body two cross section of the contiguous screw rod of special shaped screw bolt or the global sections of body are so long as non-circular, the interior edge face that can satisfy rotary shifted back and first through hole and second through hole offsets, as preferably, the body two or the whole cross section of special shaped screw bolt can be designed to oval shape or rectangular or ellipse or square or triangle or rhombus or polygonal.
For the ease of the current location of identification special shaped screw bolt, the convenient installation, the termination of described screw rod also has the sign groove that in axial direction is provided with, and the length direction of the notch direction of this sign groove and the body cross-section of described special shaped screw bolt is consistent.So, in special shaped screw bolt is located in first through hole and second through hole and when being in active state, the sign groove is vertically (or level) direction, when being revolved, special shaped screw bolt turn 90 degrees and when being in spacing state, at this moment, the sign groove then is level (or vertical) direction, can judge the current state of special shaped screw bolt by the notch direction of sign groove.
Compared with prior art, advantage of the present utility model is: at first, special shaped screw bolt is simple in structure, is convenient to install, and can improve the intensity and the rigidity of the nested composite section material member after the connection; Secondly, adopt the both enough effects of both having played support of securing means of special shaped screw bolt, play the effect of reinforcing again, can prevent the nested composite section material deformation of members effectively; Moreover, the dual-side that the nested composite section material member is fitted mutually is subjected to the double action of the body interior edge face of special shaped screw bolt and nut and firmly compresses, make the dual-side of fitting mutually be solidly fixed, improved the intensity and the rigidity of nested composite section material member significantly; In addition, the through hole that securing means is installed can be opened in the arbitrary position along the short transverse of nested composite section material member, as long as special shaped screw bolt is passed through hole can be realized fixing after rotary shifted, simple to operate, convenient, for convenience detach, make the installation of securing means not limited by the dimensional structure of composite material member.
Description of drawings
Fig. 1 is the utility model embodiment one a securing means user mode structural representation.
Fig. 2 is the utility model embodiment one a securing means plane linkage structure schematic representation.
Fig. 3 is that A-A shown in Figure 2 is to sectional view.
Fig. 4 is that B-B shown in Figure 2 is to sectional view.
Fig. 5 is one of securing means user mode structural representation of the utility model embodiment two.
Fig. 6 be the utility model embodiment two securing means user mode structural representation two.
Fig. 7 is the utility model embodiment two a securing means three-dimensional exploded view.
Fig. 8 is the utility model embodiment two a securing means sectional arrangement drawing.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Embodiment one, as Fig. 1～shown in Figure 4:
The securing means of present embodiment one is used for the nested composite section material member, and this nested composite section material member can be the column and the crossbeam of multi-storied garage underframe or storage rack, also can be the beam column construction of other equipment.
The nested composite section material member of present embodiment is the rectangular hollow and thin-walled cylinder of a cross section, and this nested composite section material member forms by cold-rolling process and by two shapes and measure-alike first member 1 and second member, 2 interlaced filling the span of a man's arms;
Wherein, nested composite section material member P includes first member 1 and second member 2 of mutually nested combination, first member 1 has first side 11 and the second side 12 that is arranged in parallel, be connected with first vertical edge 13 between first side 11 and the second side 12, second member 2 has the 3rd side 21 and the four side 22 that is arranged in parallel, be connected with second vertical edge 23 between the 3rd side 21 and the four side 22, first side 11 and the 3rd side 21 fit into first group of double-deck welt 3, second side 12 and four side 22 fit into second group of double-deck welt 4, securing means also are installed with being adjacent between the dual-side of the dual-side that guarantees first group of double-deck welt 3 and second group of double-deck welt 4 on the nested composite section material member P;
Securing means includes special shaped screw bolt 5, special shaped screw bolt 5 has the screw rod 51 that cross section is oval shape or rectangular body 52 and is arranged on these body 52 two ends, the termination of screw rod 51 has the sign groove 511 that in axial direction is provided with, the length direction of the notch direction of this sign groove 511 and body 52 cross sections of special shaped screw bolt 5 is consistent, screw rod 51 can match with nut 6, the body of this nut 6 is hexagon nut or sides nut, and the interior edge face of nut is also one-body molded a round tablet 61; Offer first through hole 31 on first group of double-deck welt 3, correspondingly, second group of double-deck welt 4 offers second through hole, 41, the first through holes 31 and second through hole 41 in the position of corresponding first through hole 31 shape size is suitable with the body 52 shape of cross section sizes of special shaped screw bolt 5 respectively.
During installation, consider the limited length of special shaped screw bolt 5, operation for convenience, can on the screw rod 51 at special shaped screw bolt 5 two ends, overlap and connect the swivel nut that can match with corresponding screw rod 51, this swivel nut can pass first through hole 31 and second through hole 41, so, special shaped screw bolt 5 can flatly enter under the guiding of swivel nut among the nested composite section material member, and, just in time between the madial wall of first group of double-deck welt 3 and second group of double-deck welt 4, the screw rod 51 at special shaped screw bolt 5 two ends just in time is located in first through hole 31 to the body 52 of special shaped screw bolt 5, within second through hole 41 and be exposed to outside the nested composite section material member;
With special shaped screw bolt 5 revolve turn 90 degrees after, the oval shape at body 52 two ends or rectangular cross section respectively with relative and first through hole 31 that establish, the interior edge face 90 degree dislocation of second through hole 41 offset, at this moment, take off the swivel nut that is connected on the screw rod 51, nut 6 is threaded respectively on the screw rod 51 that is exposed to outside the nested composite section material member, when fastening nut 6, under compressing tablet 61 effects of one of them interior edge face of body 52 and nut 6, abut in together between the first side 11 of first group of double-deck welt 3 and the 3rd side 21, under compressing tablet 61 effects of another interior edge face of body 52 and nut 6, also abut in together between the second side 12 of second group of double-deck welt 4 and the four side 22, therefore, first group of double-deck welt 3 and second group of double-deck welt 4 of nested composite section material member are closely compressed and are realized seamless link under the acting in conjunction of special shaped screw bolt 5 and nut 6, and, special shaped screw bolt 5 bodies 52 that are positioned at the nested composite section material component inside play supporting effect effectively, further prevent the composite material distortion, thereby improved the intensity and the rigidity of composite material to greatest extent.
Adopt the securing means of present embodiment, can offer through hole along the arbitrary position of short transverse at first group of double-deck welt 3 and second group of double-deck welt 4, the double-deck welt that not only can realize the nested composite section material member is fastening two ends, can also clamp double-deck welt in middle and other position, easy to operate, be convenient to dismounting, can effectively improve installation efficiency.
Embodiment two, as Fig. 5～shown in Figure 8:
Embodiment two securing means is installed on the nested composite section material member equally, and the structure of nested composite section material member is identical with embodiment one, does not repeat them here.
Present embodiment two and embodiment's one difference is, the special shaped screw bolt of present embodiment two is oval shape or rectangular near body 52 two 521 cross sections of screw rod, cross section then is circular in the body 52 of special shaped screw bolt, and, securing means is except special shaped screw bolt 5 and be connected the nut 6 on this special shaped screw bolt screw rod 51, also have the stop cover 7 that is connected equally on the special shaped screw bolt screw rod 51, stop cover 7 has can be with the suitable head 71 of screw rod and along these head 71 axially extended pins 72.
During installation, special shaped screw bolt 5 passes first through hole, second through hole, just in time between the madial wall of first group of double-deck welt 3 and second group of double-deck welt 4, the screw rod 51 at special shaped screw bolt 5 two ends just in time is located within first through hole 31, second through hole 41 and is exposed to outside the nested composite section material member body 52 of special shaped screw bolt 5;
With special shaped screw bolt 5 revolve turn 90 degrees after, the oval shape at body two 521 or rectangular end face respectively with relative and first through hole 31 that establish, the interior edge face 90 degree dislocation of second through hole 41 offset, at this moment, the end face at body two 521 is with respect to first through hole 31, be formed with slit 9 after the interior edge face of second through hole 41 is rotary shifted, the head 71 of stop cover 7 is set on the screw rod 51, the pin 72 of stop cover 7 just in time inserts among the slit 9, so, special shaped screw bolt 5 can't rotate, nut 6 again is threaded on the screw rod 51 that is exposed to outside the nested composite section material member, fastening nut 6 closely is adjacent to up to the exterior edge face of nut 6 and stop cover 7, also be provided with anti-skidding packing ring 8 between nut 6 and the stop cover 7, the exterior edge face of stop cover 7 also offers circular groove 711, and packing ring 8 is embedded in circular groove 711.So first group of double-deck welt 3 and second group of double-deck welt 4 of nested composite section material member are closely compressed and are realized seamless link under the acting in conjunction of special shaped screw bolt 5, stop cover 7 and nut 6.
Claims (9)
1. special shaped screw bolt, it is characterized in that: described special shaped screw bolt (5) includes body (52) and is arranged on the screw rod (51) at this body (52) two ends, and, two (521) cross section of the described body (52) of contiguous screw rod is non-circular, and the axis projection of cross section is positioned at the non-circular axis projection at described body (52) two in this body (52).
2. special shaped screw bolt according to claim 1, it is characterized in that: the middle cross section of described body (52) is equal to two cross section, and the cross section of described body is oval shape or rectangular or ellipse or square or triangle or rhombus or trapezoidal or greater than the polygonal on four limits.
3. special shaped screw bolt according to claim 1 and 2, it is characterized in that: the termination of described screw rod (51) also has the sign groove (511) that in axial direction is provided with, and the length direction of the notch direction of this sign groove (511) and body (52) cross section of described special shaped screw bolt (5) is consistent.
4. one kind is adopted the securing means of special shaped screw bolt according to claim 1, this securing means is installed on the nested composite section material member, described nested composite section material member includes first member (1) and second member (2), identical and interlaced the filling the span of a man's arms of the geomery of described first member (1) and second member (2) becomes the cylinder with hollow cavity, wherein, described first member (1) has first side (11) and second side (12) that are arranged in parallel, described second member (2) has the 3rd side (21) and the four side (22) that is arranged in parallel, the corresponding applying of the first side (11) of described first member (1) and the 3rd side (21) of second member (2) forms first group of double-deck welt (3), and corresponding applying of the second side (12) of described first member (1) and the four side (22) of second member (2) forms second group of double-deck welt (4);
It is characterized in that: described securing means includes described special shaped screw bolt (5) and is connected the nut (6) at this special shaped screw bolt (5) two ends, offer first through hole (31) on described first group of double-deck welt (3), offer second through hole (41) that aligns with described first through hole (31) on described second group of double-deck welt (4), the shape size of described first through hole (31) and second through hole (41) is suitable with body two (521) shape of cross section size of described special shaped screw bolt (5) respectively, described special shaped screw bolt (5) is arranged in described first through hole (31), within second through hole (41), and, the end face at body two (521) of described special shaped screw bolt (5) respectively with described first through hole (31), rotary shifted the offseting of interior edge face of second through hole (41), the described screw rod (51) that is exposed to outside the described nested composite section material member then is threaded with described nut (6), the interior edge face of described nut (6) and described first through hole (31), the exterior edge face of second through hole (41) is close to.
5. securing means according to claim 4, it is characterized in that: also be provided with between the exterior edge face of described nut (6) interior edge face and described first through hole (31), second through hole (41) and be used to increase the round tablet (61) that is adjacent to area, described compressing tablet (61) and described nut (6) are integral piece.
6. securing means according to claim 4, it is characterized in that: described securing means also includes stop cover (7), described stop cover (7) has can be with the suitable head (71) of described screw rod and along the axially extended pin of this head (71) (72), described pin (72) is inserted in the end face at described body two (521) with respect to described first through hole (31), in the slit (9) after the interior edge face of second through hole (41) is rotary shifted, the described screw rod (51) that is exposed to outside the described nested composite section material member is inserted among the head (71) of described stop cover (7), described nut (6) is threaded on the described screw rod (51), and the exterior edge face of interior edge face of this nut (6) and described stop cover (7) offsets.
7. securing means according to claim 6 is characterized in that: also be provided with packing ring (8) between described nut (6) and the described stop cover (7).
8. according to the described securing means of arbitrary claim in the claim 4～7, it is characterized in that: the middle cross section of described body (52) is equal to two cross section, and the cross section of described body is oval shape or rectangular or ellipse or square or triangle or rhombus or trapezoidal or greater than the polygonal on four limits.
9. securing means according to claim 8, it is characterized in that: screw rod (51) termination of described special shaped screw bolt (5) also has the sign groove (511) that in axial direction is provided with, and the length direction of the notch direction of this sign groove (511) and body (52) cross section of described special shaped screw bolt (5) is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202604639U CN201747739U (en) | 2010-07-12 | 2010-07-12 | Special bolt and fastening device with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202604639U CN201747739U (en) | 2010-07-12 | 2010-07-12 | Special bolt and fastening device with the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747739U true CN201747739U (en) | 2011-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202604639U Expired - Lifetime CN201747739U (en) | 2010-07-12 | 2010-07-12 | Special bolt and fastening device with the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747739U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886653A (en) * | 2010-07-12 | 2010-11-17 | 朱建华 | Heteromorphic bolt and fastening device adopting same |
| CN102601448A (en) * | 2011-12-09 | 2012-07-25 | 太原矿山机器集团有限公司 | Loosening prevention mechanism of flying shear blade |
| CN106438627A (en) * | 2016-11-18 | 2017-02-22 | 北京建筑大学 | Fastening piece for unilateral bolt |
-
2010
- 2010-07-12 CN CN2010202604639U patent/CN201747739U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886653A (en) * | 2010-07-12 | 2010-11-17 | 朱建华 | Heteromorphic bolt and fastening device adopting same |
| CN101886653B (en) * | 2010-07-12 | 2012-07-25 | 朱建华 | Fastening device |
| CN102601448A (en) * | 2011-12-09 | 2012-07-25 | 太原矿山机器集团有限公司 | Loosening prevention mechanism of flying shear blade |
| CN106438627A (en) * | 2016-11-18 | 2017-02-22 | 北京建筑大学 | Fastening piece for unilateral bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110216 Effective date of abandoning: 20120725 |