CN203614539U - High-tension expansion screw - Google Patents
High-tension expansion screw Download PDFInfo
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- CN203614539U CN203614539U CN201320781737.2U CN201320781737U CN203614539U CN 203614539 U CN203614539 U CN 203614539U CN 201320781737 U CN201320781737 U CN 201320781737U CN 203614539 U CN203614539 U CN 203614539U
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- expansion
- expansion sleeve
- sleeve
- tensile strength
- high tensile
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Abstract
The utility model relates to an expansion screw, in particular to a high-tension expansion screw capable of being applied to and pre-arranged in a through hole and achieving functions of preventing shock, dust, loosing and idle running. The expansion screw comprises an expansion sleeve, a locking element penetrating the expansion sleeve to be in screwing fit with the expansion sleeve and a conical expansion head arranged at the front end of the locking element and in screwing fit with the locking element. A transverse press line is arranged on the inner wall of the expansion sleeve to divide the expansion sleeve into a sleeve portion and an expansion portion, at least two corresponding notches are arranged in the upper edge of the expansion portion, and a channel is arranged in each notch in the axis direction. Protruding blocks for preventing the expansion head from rotating in the expansion sleeve are arranged on the conical expansion head at the positions corresponding to the notches. A groove is formed in the inner wall of the conical expansion head, a first nylon gasket with a first film arranged on the surface is arranged at the position of the groove, and a transverse press line is further arranged in the middle of the expansion portion. The high-tension expansion screw has the advantages of further improving tension strength, improving a fastening effect and the like.
Description
Technical field
The utility model relates to a kind of setscrew, especially refers to that one can be applied to preset to perforation, can reach the high tensile strength setscrew of the function of shockproof, dustproof, locking and slide system.
Background technique
To be commonly called as the setscrew of " gecko ", be applied among the space of our life, quite general and common, such as in the installing of the suspension of mural painting, rack and fire-prevention pipe, gas pipe etc. fixing, all need be by this setscrew using the utensil as auxiliary, but, how to reach simple and convenient assembly, stablize with fixing rapidly, become stakeholder's research topic of being engaged in this industry.
Wherein, as shown in Figure 1, be general common setscrew 20, this setscrew 20 is on a screw 201, to be arranged with respectively packing ring 202,203, and be separately provided with and can be expansion sleeve cylindraceous outward for being sheathed on screw 201, this expansion sleeve offers two corresponding joint-cuttings 2041 in outer end lateral margin, be provided with again the contact piece 205 of a toroidal in these screw 201 outer end spiral shells, being screwed into contact in expansion sleeve 204 by this contact piece 205, make expansion sleeve 204 front ends outwards open distortion by joint-cutting 2041 places, and the certain build-in of energy is in base material.
But, although above-mentioned setscrew 20 can reach for outwards expanding and open distortion, expection effect with certain build-in in basic, but also in implementing to use, reality finds, the contact piece 205 that the outer rim place of this expansion sleeve 204 and spiral shell are located at these screw 201 outer ends and expansion sleeve 204 interior intermarginal there is no any for inlay card this structure of surely doing again from the beginning, make to establish in process in spiral shell, it all can produce the phenomenon of idle running without force bearing point each other, cause this expansion sleeve 204 really outwards to expand and open the situation generation of build-in in base material, on the other hand, joint-cutting 2041 and its opening of this setscrew 20 are interconnected, therefore, used and easily cause long afterwards the opening of expansion sleeve 204 day by day to become large, cause the steadiness variation that mutually combines fixing between expansion sleeve 204 and screw 201, and then cause hanger to produce to rock or the situation such as unstable, the use safety that not only jeopardizes Consumer also greatly reduces the wish that Consumer's wish is bought.
In view of this, how to address the above problem, develop one and there is shockproof, dustproof, locking and slide system function, and high tensile strength setscrew not fragile, that drop, the improved problem of the utility model just become.
Model utility content
For addressing the above problem and reaching the utility model above-mentioned purpose, the utility model provides altogether with technological scheme and is:
A kind of high tensile strength setscrew, comprises an expansion sleeve, and its inwall is provided with a horizontal line ball, this expansion sleeve is divided into sleeve part and bulge, and the upper limb place of this bulge is at least provided with two corresponding breach, and this breach offers conduit along axial direction; One lock member that wears this expansion sleeve and be screwed with this expansion sleeve; And the tapered expansion head being located at this lock member front end and being screwed with this lock member, wherein, described tapered expansion head is to should indentation, there, be provided with the projection preventing in expansion sleeve rotates, and the inwall of this tapered expansion head is provided with a groove, and this groove is provided with a surface and has the first nylon spacer of a film; Also be provided with a horizontal line ball at the middle part of described bulge.It is larger that the horizontal line ball of the portion of described bulge can make bulge open, and meets the requirement of high tensile strength.
For reaching dustproof object, in technique scheme, described expansion sleeve and this tapered expansion head are coated and fixed and are integrated by a plastic film.In the time that the utility model and viscose glue are used in conjunction with, in installation process, described plastic film can make viscose glue can not infiltrate expansion sleeve inside.
In technique scheme, between described sleeve part and this bulge, be more provided with at least one outstanding align member.This outstanding align member fixedly positioning after making the utility model be installed in matrix more, prevents displacement, prevents rotation.
In technique scheme, the intersection of described horizontal line ball and this conduit, is respectively equipped with a hole.
In technique scheme, described indentation, there, more extension is provided with two and can prevents the outstanding fastener that projection skids off from conduit.
In technique scheme, the nut that the bolt that described lock member is established with this expansion sleeve spiral shell by one and a spiral shell are located at this bolt front end place is formed.
In technique scheme, the tail end of described bolt, stretching out is more respectively provided with one and can prevents the bump that bolt drops.
In technique scheme, the inwall of described nut, be more provided with an annular groove, and this annular groove place is more provided with one second nylon spacer.
Compared with prior art, superiority of the present utility model is:
(1), in the utility model, by being provided with hole at horizontal line ball and conduit intersection, to improve the stubborn defect of bulge, and can further improve tensile strength and improve fastening effect.
(2) expansion sleeve and tapered expansion head are coated by plastic film, therefore, in the time coordinating with viscose glue, can make viscose glue can not infiltrate expansion sleeve inside when installation.
(3) by the coordinating of the projection on tapered expansion head and breach and conduit, can prevent that expansion sleeve from producing the phenomenon dallying without force bearing point in the time of installation.
(4) set up the first nylon spacer at a tapered expansion inwall, can effectively avoid lock member to get loose, to reach locking effect.
(5), by setting up film on the first nylon signboard surface, can effectively prevent that dust or foreign matter from infiltrating, to reach dustproof, anti-dirty effect.
(6), by the application of described outstanding fastener, can avoid projection to skid off from conduit.
(7), by the application of bump described in the tail end of bolt, crystallized ability that can strengthening stud, causes bolt to get loose to prevent from hanging weight for a long time, and then reaches effect of strengthening steadiness.
Accompanying drawing explanation
Fig. 1 is prior art decomposing schematic representation;
Fig. 2 is the utility model embodiment 1 decomposing schematic representation;
Fig. 3 is the utility model embodiment 1 schematic perspective view;
Fig. 4 is the utility model embodiment 1 front side schematic diagram;
Fig. 5 is A-A generalized section in Fig. 4;
Fig. 6 is the expansion schematic perspective view of expansion sleeve in the utility model embodiment 1;
Fig. 7 is the utility model embodiment 2 decomposing schematic representation;
Fig. 8 is the utility model embodiment 2 schematic perspective view;
Fig. 9 is the utility model embodiment 2 front side schematic diagram;
Figure 10 is B-B generalized section in Fig. 9.
Attached number in the figure explanation:
1---expansion sleeve;
111---laterally line ball; 112---laterally line ball;
12---sleeve part; 131,132,133,134---bulge; 14,14 '---breach;
15,15 '---conduit; 1511,1512,1513,1514,1515---outstanding fastener;
2---lock member;
21---bolt; 22---nut; 221---annular groove;
3---tapered expansion head;
311,312,313,314---projection; 32---groove;
4---the first nylon spacer; 41---film;
5---plastic film; 6---align member; 7,7 ', 7 ' ', 7 ' ' '---hole;
8---bump;
9---the second nylon spacer;
10---porthole; 20---setscrew;
201---screw; 202,203---packing ring;
204---expansion sleeve; 2041---joint-cutting; 205---contact piece.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated.
embodiment 1
Illustrating as shown in Figures 2 to 6 of the present embodiment, a kind of high tensile strength setscrew is disclosed in figure, comprise an expansion sleeve 1, its inwall is provided with a horizontal line ball 111, this expansion sleeve 1 is divided into sleeve part 12 and bulge 131,132,133,134, and the upper limb place of this bulge 131,132,133,134 was provided with for two corresponding breach 14,14 ' (in Fig. 2, another two breach do not show), breach 14,14 ' offers conduit 15,15 ' along axial direction respectively; One lock member 2 that wears this expansion sleeve 1 and be screwed with this expansion sleeve 1; And one be located at these lock member 2 front ends and the tapered expansion that is screwed with this lock member 23, described tapered expansion 3 pairs should breach 14,14 ' be located, be provided with the projection 311,312,313,314 that can prevent that this expansion sleeve 1 from rotating, and the inwall of this tapered expansion 3 is provided with a groove 32, and these groove 32 places, be provided with the first nylon spacer 4 that a surface has a film 41, be also provided with a horizontal line ball 112 at the middle part of described bulge 131,132,133,134.The setting of described horizontal line ball 112, more easily expands the bulge 131,132,133,134 of the present embodiment, and range of expansion is larger, plays high tensile strength effect.
Described expansion sleeve 1 and this tapered expansion 3 is coated and fixed and is integrated by a plastic film 5.Accordingly, in the time coordinating with viscose glue, in installation process, can make viscose glue can not infiltrate expansion sleeve 1 inside.
Between described sleeve part 12 and this bulge 131,132,133,134, be more provided with two outstanding align members 6,6 '.Described align member 6,6 ' outwards outstanding, for the location of expansion sleeve 1, when expansion sleeve 1 is driven into after matrix, this outstanding align member 6 can play the effect of fixed expansion sleeve 1, can prevent that expansion sleeve 1 from rotating, also can increase the pulling force of expansion sleeve 1.
Described horizontal line ball 111 and this conduit 15,15 ' intersection, be respectively equipped with hole 7,7 ', is provided with hole 7 ' with another two conduits ', 7 ' ' '.Accordingly, can improve bulge 131,132,133,134 stubborn defects, allow bulge 131,132,133,134 more easily open.
Described breach 14,14 ' is located, and more extends and is provided with four outstanding fasteners 1511,1512,1513,1514 that can prevent that projection 31 from skidding off from conduit 15.
When using the present embodiment to carry out spiral shell while establishing, first the present embodiment is firmly stretched and is placed in matrix, and then utilize the things such as wrench to rotate this lock member 2, borrow in these lock member 2 rotations, this tapered expansion 3 just can be along lock member 2 to the interior movement of expansion sleeve 1, now, this bulge 131,132,133,134 just can continue to be subject under the extruding of tapered expansion 3 and expand gradually, finally clamps, is positioned in matrix.
Wherein, interior when mobile to expansion sleeve 1 when tapered expansion 3, the projection 311,312,313,314 of this tapered expansion 3 also can be towards mobile in the breach 14 on expansion sleeve 1,14 ', produces the phenomenon of idle running when preventing that lock member 2 from rotating.
Secondly, set up the first nylon spacer 4 at tapered expansion 3 inwall, can effectively avoid lock member 2 to get loose, to reach locking effect.
Moreover, set up film 41 on the surface of the first nylon spacer 4, can effectively prevent that dust or foreign matter from infiltrating, to reach moistureproof, anti-dirty effect.
Illustrating as shown in Figure 7 to 10 of the present embodiment, a kind of high tensile strength setscrew is disclosed in figure, comprise a kind of high tensile strength setscrew, comprise an expansion sleeve 1, its inwall is provided with a horizontal line ball 111, this expansion sleeve 1 is divided into sleeve part 12 and bulge 131,132,133,134, and the upper limb place of this bulge 131,132,133,134, be provided with two corresponding breach 14,14 ' (two other breach not shown in the figures), breach 14,14 ' offers respectively conduit 15,15 ' along axial direction; One lock member 2 that wears this expansion sleeve 1 and be screwed with this expansion sleeve 1; And one be located at these lock member 2 front ends and the tapered expansion that is screwed with this lock member 23, wherein: the nut 22 that the bolt 21 that described lock member 2 is established with this expansion sleeve 1 spiral shell by one and a spiral shell are located at these bolt 21 front end places is formed; Described tapered expansion 3 pairs should breach 14,14 ' be located, be provided with the projection 311,312,313,314 that can prevent that this expansion sleeve 1 from rotating, and the inwall of this tapered expansion 3 is provided with a groove 32, and these groove 32 places, be provided with the first nylon spacer 4 that a surface has a film 41, be also provided with a horizontal line ball 112 at the middle part of described bulge 131,132,133,134.The setting of described horizontal line ball 112, more easily expands the bulge 131,132,133,134 of the present embodiment, and range of expansion is larger, plays high tensile strength effect.
Described expansion sleeve 1 and this tapered expansion 3 is coated and fixed and is integrated by a plastic film 5.Accordingly, in the time coordinating with viscose glue, in installation process, can make viscose glue can not infiltrate expansion sleeve 1 inside.
Between described sleeve part 12 and this bulge 131,132,133,134, be more provided with the align member 6 that at least one is outstanding.Described align member 6 is outwards outstanding, for the location of expansion sleeve 1, when expansion sleeve 1 is driven into after matrix, this outstanding align member 6 can play the effect of fixed expansion sleeve 1, can prevent that expansion sleeve 1 from rotating, also can increase the pulling force of expansion sleeve 1.
Described horizontal line ball 111 and this conduit 15,15 ' intersection, be respectively equipped with hole.Accordingly, can improve bulge 131,132,133,134 stubborn defects, allow bulge 131,132,133,134 more easily open.
Described breach 14,14 ' is located, and more extends and is provided with four outstanding fasteners 1511,1512,1513,1514 that can prevent that projection 31 from skidding off from conduit 15.
The inwall of described nut 22, be more provided with an annular groove 221, and these annular groove 221 places is more provided with one second nylon spacer 9.
From different being in embodiment 1, lock member 2 in the present embodiment is by a bolt 21, form with a nut 22, therefore, when using the present embodiment to carry out spiral shell while establishing, prior to perforate on matrix, and this hole size is suitable with expansion sleeve 1 maximum outside diameter, so that the present embodiment can be inserted in hole, this nut 22 is located at outside hole, and then utilize a wrench to rotate this nut 22, borrow in these nut 22 rotations, 21, this bolt can protrude out movement outside hole, and the tapered expansion of bolt 21 belows 3 also can be to the interior movement of expansion sleeve 1, now, this bulge 131, 132, 133, 134 because of be subject to tapered expansion 3 constantly pushing tow strut gradually, cause the present embodiment clamping, be positioned in matrix.
Wherein, above-mentioned tapered expansion 3 inwall are provided with the first nylon spacer 4, can effectively avoid bolt 21 because long-time hanging weight gets loose, and make the clamping locating effect of the present embodiment better.
Secondly, interior when mobile to expansion sleeve 1 when tapered expansion 3, the projection 311,312,313,314 in this tapered expansion 3 also can be towards mobile in the breach 14 on expansion sleeve 1,14 ', to prevent that nut 22 from rotating the phenomenon that produces idle running.
In above-mentioned, the tail end of described bolt 21, stretching out is more respectively provided with one and can prevents the bump 8 that bolt 21 drops.
Wherein, by setting up the second nylon spacer 9 at nut 22 inwalls, can effectively improve the fastening effect between bolt 21 and nut 22, to reach locking effect.
Comprehensive the above, the utility model is by being provided with projection 31 in tapered expansion 3 and the corresponding part of breach 14, produce the problem of breakthrough without force bearing point when the installation to solve expansion sleeve 1, in addition, inwall in tapered expansion 3 is set up the first nylon spacer 4, to solve the long-time problem that hangs weight and get loose of lock member 2, compared to existing setscrew, there is remarkable efficacy to promote, allow the utility model have more practicability, progressive and industry applications.
Describe structure of the present utility model, feature and action effect in detail according to the embodiment shown in graphic above, but the utility model does not limit practical range with shown in accompanying drawing, therefore the modified in every case conforming to the utility model intention changes, as long as all should belong within the scope of the utility model in impartial scope.
Claims (8)
1. a high tensile strength setscrew, comprise an expansion sleeve (1), its inwall is provided with a horizontal line ball (111), this expansion sleeve (1) is divided into sleeve part (12) and bulge (131,132,133,134), and the upper limb place of this bulge (131,132,133,134) is at least provided with two corresponding breach (14,14 '), this breach (14,14 ') offers conduit (15,15 ') along axial direction;
One lock member (2) that wears this expansion sleeve (1) and be screwed with this expansion sleeve (1); And
One be located at this lock member (2) front end and with the tapered expansion head (3) that this lock member (2) is screwed, it is characterized in that:
Described tapered expansion head (3) is to locating by breach (14), be provided with the projection (311,312,313,314) preventing in expansion sleeve (1) rotates, and the inwall of this tapered expansion head (3) is provided with a groove (32), and this groove (32) is located, be provided with a surface and have first nylon spacer (4) of a film (41);
Also be provided with a horizontal line ball (112) at the middle part of described bulge (131,132,133,134).
2. high tensile strength setscrew according to claim 1, is characterized in that, described expansion sleeve (1) is coated and fixed and is integrated by a plastic film (5) with this tapered expansion head (3).
3. high tensile strength setscrew according to claim 1, is characterized in that, between described sleeve part (12) and this bulge (131,132,133,134), is more provided with at least one outstanding align member (6).
4. high tensile strength setscrew according to claim 1, is characterized in that, the intersection of described horizontal line ball (111) and this conduit (15,15 '), is respectively equipped with a hole (7,7 ').
5. high tensile strength setscrew according to claim 1, it is characterized in that, described breach (14,14 ') is located, and more extension is provided with two and can prevents the outstanding fastener (1511,1512,1513,1514) that projection (311,312,313,314) skids off from conduit (15,15 ').
6. high tensile strength setscrew according to claim 1, is characterized in that, the nut (22) that the bolt (21) that described lock member (2) is established with this expansion sleeve (1) spiral shell by one and a spiral shell are located at this bolt (21) front end place is formed.
7. high tensile strength setscrew according to claim 6, is characterized in that, the tail end of described bolt (21), and stretching out is more respectively provided with one and can prevents the bump (8) that bolt (21) drops.
8. high tensile strength setscrew according to claim 6, is characterized in that, the inwall of described nut (22) be more provided with an annular groove (221), and this annular groove (221) is located, and is more provided with one second nylon spacer (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320781737.2U CN203614539U (en) | 2013-12-03 | 2013-12-03 | High-tension expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320781737.2U CN203614539U (en) | 2013-12-03 | 2013-12-03 | High-tension expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614539U true CN203614539U (en) | 2014-05-28 |
Family
ID=50767188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320781737.2U Expired - Fee Related CN203614539U (en) | 2013-12-03 | 2013-12-03 | High-tension expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614539U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065402A (en) * | 2015-08-16 | 2015-11-18 | 于国凡 | Expansion screw |
| CN108026955A (en) * | 2015-09-23 | 2018-05-11 | 海福乐柏林有限及两合公司 | The connection expansible plug of expansion sleeve injection encapsulated |
| CN108672679A (en) * | 2018-08-01 | 2018-10-19 | 东莞市奥利瓦钢材模具有限公司 | Motor rotor pressure-casting mold |
| CN109296616A (en) * | 2018-10-17 | 2019-02-01 | 厦门立业卫浴工业有限公司 | A kind of fast-assembling forces tight bolt fastening structure automatically |
| CN109505843A (en) * | 2017-09-14 | 2019-03-22 | 森契克斯股份有限公司 | Fastener system |
| CN112095783A (en) * | 2020-08-10 | 2020-12-18 | 中建集成建筑有限公司 | Locking device between modules, node structure and construction method of node structure |
-
2013
- 2013-12-03 CN CN201320781737.2U patent/CN203614539U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065402A (en) * | 2015-08-16 | 2015-11-18 | 于国凡 | Expansion screw |
| CN108026955A (en) * | 2015-09-23 | 2018-05-11 | 海福乐柏林有限及两合公司 | The connection expansible plug of expansion sleeve injection encapsulated |
| CN108026955B (en) * | 2015-09-23 | 2020-03-06 | 海福乐柏林有限及两合公司 | Connecting expansion bolt for injection molding and encapsulation of expansion sleeve |
| US10584732B2 (en) | 2015-09-23 | 2020-03-10 | Häfele Berlin Gmbh & Co Kg | Connecting expansion bolts over-molded with expansion sleeves |
| CN109505843A (en) * | 2017-09-14 | 2019-03-22 | 森契克斯股份有限公司 | Fastener system |
| CN108672679A (en) * | 2018-08-01 | 2018-10-19 | 东莞市奥利瓦钢材模具有限公司 | Motor rotor pressure-casting mold |
| CN109296616A (en) * | 2018-10-17 | 2019-02-01 | 厦门立业卫浴工业有限公司 | A kind of fast-assembling forces tight bolt fastening structure automatically |
| CN109296616B (en) * | 2018-10-17 | 2024-04-02 | 厦门立业卫浴工业有限公司 | Fast-assembling is automatic to be forced tight bolt connection structure |
| CN112095783A (en) * | 2020-08-10 | 2020-12-18 | 中建集成建筑有限公司 | Locking device between modules, node structure and construction method of node structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20181203 |
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| CF01 | Termination of patent right due to non-payment of annual fee |