CN204572722U - The locking EXPANSION ANCHOR BOLTS of a kind of slide block type - Google Patents
The locking EXPANSION ANCHOR BOLTS of a kind of slide block type Download PDFInfo
- Publication number
- CN204572722U CN204572722U CN201520245325.6U CN201520245325U CN204572722U CN 204572722 U CN204572722 U CN 204572722U CN 201520245325 U CN201520245325 U CN 201520245325U CN 204572722 U CN204572722 U CN 204572722U
- Authority
- CN
- China
- Prior art keywords
- main body
- body bolt
- slide block
- threaded hole
- interior threaded
- 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
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Abstract
The utility model discloses the locking EXPANSION ANCHOR BOLTS of a kind of slide block type, it is characterized in that comprising: the outer peripheral surface of main body bolt has the external thread structure with workpiece interior threaded hole screw-thread fit, there is axially through interior threaded hole, being set at the leading portion of main body bolt can the expansion arc of radially bulging, and expansion arc has the axially through swollen hole of hollow; Dogbolt forms screw-thread fit with the interior threaded hole of its outside thread and main body bolt, and the rotation direction of dogbolt in main body bolt and the rotation direction of main body bolt in workpiece interior threaded hole are opposite direction; The bolt front end of dogbolt can be embedded in the swollen hole of hollow of expansion arc, makes expansion arc in radial bulging and is butted on the surface of workpiece interior threaded hole.The utility model can effectively prevent from loosening, be easy to dismounting, avoid wearing and tearing.
Description
Technical field
The utility model relates to a kind of fastening piece, is more particularly a kind of fastening threaded connector.
Background technique
Plain bolt connection has certain self-locking performance, but in the process of vibration, and use in the environment that temperature variation is larger, easily cause bolt looseness even to come off, cause unnecessary loss.No matter be take metal as material or employing working of plastics, unavoidably there are wearing and tearing in disassembly process, due to the matching gap added between component of wearing and tearing, frequent easy disassembling causes because excessive wear causes connected piece to be scrapped.
Locking thread of the prior art is generally arrange elastic washer, also have and the bottom end face of bolt is set to dentation, to increase the frictional force between bolt end face and assembly parts, but these modes fundamentally can not solve the loosening problem of the threaded connector produced due to the increase of the matching gap of screw thread.
Application number is 201120276074.X, Authorization Notice No. is: it is application nylon rope on its screw thread that the utility model patent of CN202301389U discloses " a kind of novel screw ", between internal thread and outside thread, establish one deck elastomer contact, make its embed completely at the bottom of tip of thread and tooth between gap, certain locking effect can be played.But nylon material also should not for a long time and be reused, and can not bear larger working pulling force.
Model utility content
The utility model is the deficiency for avoiding existing for above-mentioned prior art, provides a kind of slide block type locking EXPANSION ANCHOR BOLTS, loosening, being easy to dismounting to effectively preventing, and avoids wearing and tearing.
The utility model is that technical solution problem adopts following technological scheme:
The structural feature of the locking EXPANSION ANCHOR BOLTS of the utility model slide block type comprises:
One main body bolt, its outer peripheral surface has the external thread structure with workpiece interior threaded hole screw-thread fit, described main body bolt has axially through interior threaded hole, and being set at the leading portion of described main body bolt can the expansion arc of radially bulging, and described expansion arc has the axially through swollen hole of hollow, the vibrational power flow of the expansion arc of described main body bolt is: the groove be disposed radially in the expansion arc of described main body bolt, described groove is in the both sides main body bolt sidewall of symmetrical position the radial slideway in the both sides being formed as symmetrical in described main body bolt, being combined with respectively in the radial slideway in described both sides can the radially slide block that slides of slideway, described slide block is set to curved end towards the end face at the interior threaded hole center of main body bolt, point to be in the axial hole that slide block in the radial slideway in both sides is formed as the swollen hole of hollow using relative curved end, the bolt front end of described dogbolt is conical head, being embedded in described conical head on the axially different position in described axial hole makes a pair slide block form bulging dorsad diametrically.
One dogbolt, described dogbolt forms screw-thread fit with the interior threaded hole of its outside thread and described main body bolt, and the rotation direction of described dogbolt in main body bolt and the rotation direction of described main body bolt in workpiece interior threaded hole are opposite direction; The bolt front end of described dogbolt can be embedded in the swollen hole of hollow of described expansion arc, makes described expansion arc in radial bulging and is butted on the surface of workpiece interior threaded hole.
The structural feature of the locking EXPANSION ANCHOR BOLTS of the utility model slide block type is also:
Further: described slide block is magnetic component, the magnetic force attracted each other is utilized can to form obvolvent in the interior threaded hole of described main body bolt between a pair slide block.
Further: described slide block is connected with tile clamping plate towards the one end at the interior threaded hole center of main body bolt, the axial hole as the swollen hole of hollow is formed using a pair tile clamping plate be oppositely arranged; Described tile clamping plate are magnetic component, utilize the magnetic force attracted each other can form obvolvent in the interior threaded hole of described main body bolt between a pair tile clamping plate.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model is the internal and external threads structure forming intussusception with main body bolt and dogbolt, and Hand of spiral is contrary, stop anti-loosing effect highly significant;
2, the utility model is equipped with expansion arc, further add anti-loosing effect with the form of radial bulging;
3, the utility model adopts the form of slide block at expansion arc, and its skid is flexible, and be easy to bulging, firm process is lighter.
Accompanying drawing explanation
Fig. 1 a is the utility model structural representation;
Fig. 1 b is main body bolt appearance schematic diagram in the utility model;
Fig. 1 c is the A-A view of Fig. 1 b;
Fig. 1 d is main body bolt internal structure schematic diagram in the utility model;
Fig. 1 e is the utility model dogbolt schematic diagram;
Number in the figure: 1 main body bolt, 2 interior threaded holes, 3 dogbolts, 3a conical head, 4 expansion arcs, 4c slideway, 4d slide block, 4e tile clamping plate, the 5 swollen holes of hollow.
Embodiment
See Fig. 1 a, Fig. 1 b, Fig. 1 c Fig. 1 d and Fig. 1 e, the present embodiment is the locking EXPANSION ANCHOR BOLTS of slide block type, and it comprises:
The outer peripheral surface of main body bolt 1 has the external thread structure with workpiece interior threaded hole screw-thread fit, main body bolt 1 has axially through interior threaded hole 2, being set at the leading portion of main body bolt 1 can the expansion arc 4 of radially bulging, and expansion arc 4 has the axially through swollen hole 5 of hollow, in the present embodiment, the vibrational power flow of the expansion arc 4 of main body bolt 1 is: the groove be disposed radially in the expansion arc 4 of main body bolt 1, groove is in the both sides main body bolt sidewall of symmetrical position the radial slideway 4c in the both sides being formed as symmetrical in main body bolt 1, being combined with respectively in the radial slideway 4c in both sides can the radially slide block 4d that slides of slideway, slide block 4d is set to curved end towards the end face at the interior threaded hole center of main body bolt 1, point to be in the axial hole that slide block 4d in the radial slideway 4c in both sides is formed as the swollen hole 5 of hollow using relative curved end, the bolt front end of dogbolt 3 is conical head 3a, being embedded in conical head 3a on the axially different position in axial hole makes a pair slide block 4d form bulging dorsad diametrically, the length of slide block 4d is rationally set, make when main body bolt 1 is carried out screw-thread fit in workpiece interior threaded hole, slide block 4d does not protrude from the outer peripheral surface of main body bolt 1.
Dogbolt 3 forms screw-thread fit with the interior threaded hole 2 of its outside thread and main body bolt 1, the rotation direction of dogbolt 3 in main body bolt 1 and the rotation direction of main body bolt 1 in workpiece interior threaded hole are opposite direction, the bolt front end of dogbolt 3 can be embedded in the swollen hole 5 of hollow of expansion arc 4, makes expansion arc 5 in radial bulging and is butted on the surface of workpiece interior threaded hole.
In order to ensure when main body bolt 1 is carried out screw-thread fit in workpiece interior threaded hole, interference is not caused because of slide block 4d active bulging, slide block 4d is set to magnetic component, between a pair slide block 4d, utilizes the magnetic force attracted each other can form obvolvent in the interior threaded hole of main body bolt 1.
In the present embodiment, as illustrated in figure 1 c, in order to make between dogbolt 3 with slide block 4d coordinate more reliable, be connected with tile clamping plate 4e at slide block 4d towards the one end at the interior threaded hole center of main body bolt 1, the axial hole as the swollen hole 5 of hollow is formed using a pair tile clamping plate 4e be oppositely arranged, the conical head 3a of dogbolt 3 acts on a pair tile clamping plate 4e, promotes a pair slide block 4d slide in slideway by a pair tile clamping plate 4e; Can arrange a pair tile clamping plate 4e is magnetic component, utilizes the magnetic force attracted each other can form obvolvent in the interior threaded hole of main body bolt 1 between a pair tile clamping plate 4e.
When implementing fastening, first main body bolt is placed in workpiece interior threaded hole with screw-thread fit, again by dogbolt with screw-thread fit in the interior threaded hole of main body bolt, until the bolt front end of dogbolt is embedded in the swollen hole of hollow of expansion arc, promote slide block to release along slideway to both sides, and be butted on the surface of workpiece interior threaded hole, realize locking.
Claims (4)
1. the locking EXPANSION ANCHOR BOLTS of slide block type, is characterized in that comprising:
One main body bolt (1), its outer peripheral surface has the external thread structure with workpiece interior threaded hole screw-thread fit, described main body bolt (1) has axially through interior threaded hole (2), being set at the leading portion of described main body bolt (1) can the expansion arc (4) of radially bulging, and described expansion arc (4) has the axially through swollen hole of hollow (5), the vibrational power flow of the expansion arc (4) of described main body bolt (1) is: the groove be disposed radially in the expansion arc (4) of described main body bolt (1), described groove is in the both sides main body bolt sidewall of symmetrical position the radial slideway (4c) in the both sides being formed as symmetrical in described main body bolt (1), being combined with respectively in the radial slideway (4c) in described both sides can the radially slide block (4d) that slides of slideway, described slide block (4d) is set to curved end towards the end face at the interior threaded hole center of main body bolt (1), point to be in the axial hole that slide block ((4d)) in the radial slideway ((4c)) in both sides is formed as the swollen hole of hollow (5) using relative curved end, the bolt front end of dogbolt (3) is conical head (3a), being embedded in described conical head (3a) on the axially different position in described axial hole makes a pair slide block ((4d)) form bulging dorsad diametrically, described dogbolt (3) forms screw-thread fit with the interior threaded hole (2) of its outside thread and described main body bolt (1), and the rotation direction of described dogbolt (3) in main body bolt (1) and the rotation direction of described main body bolt (1) in workpiece interior threaded hole are opposite direction, the bolt front end of described dogbolt (3) can be embedded in the swollen hole of hollow (5) of described expansion arc (4), makes described expansion arc (5) in radial bulging and is butted on the surface of workpiece interior threaded hole.
2. the locking EXPANSION ANCHOR BOLTS of slide block type according to claim 1, it is characterized in that: described slide block (4d) is magnetic component, between a pair slide block (4d), utilize the magnetic force attracted each other can form obvolvent in the interior threaded hole of described main body bolt (1).
3. the locking EXPANSION ANCHOR BOLTS of slide block type according to claim 1, it is characterized in that: described slide block (4d) is connected with tile clamping plate (4e) towards the one end at the interior threaded hole center of main body bolt (1), form the axial hole as the swollen hole of hollow (5) using a pair tile clamping plate (4e) be oppositely arranged.
4. the locking EXPANSION ANCHOR BOLTS of slide block type according to claim 3, it is characterized in that: described tile clamping plate (4e) are magnetic component, between a pair tile clamping plate (4e), utilize the magnetic force attracted each other can form obvolvent in the interior threaded hole of described main body bolt (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520245325.6U CN204572722U (en) | 2015-04-21 | 2015-04-21 | The locking EXPANSION ANCHOR BOLTS of a kind of slide block type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520245325.6U CN204572722U (en) | 2015-04-21 | 2015-04-21 | The locking EXPANSION ANCHOR BOLTS of a kind of slide block type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572722U true CN204572722U (en) | 2015-08-19 |
Family
ID=53865365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520245325.6U Expired - Fee Related CN204572722U (en) | 2015-04-21 | 2015-04-21 | The locking EXPANSION ANCHOR BOLTS of a kind of slide block type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572722U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879361A (en) * | 2015-04-21 | 2015-09-02 | 合肥工业大学 | Expansion lock bolt |
| CN107061470A (en) * | 2017-04-21 | 2017-08-18 | 绵竹市凯瑞机械加工有限公司 | Parts connection check bolt |
| CN109356922A (en) * | 2018-12-10 | 2019-02-19 | 重庆大学 | A kind of blind bolt |
| CN110663392A (en) * | 2019-09-19 | 2020-01-10 | 杭州中艺生态环境工程有限公司 | Loosening-proof ecological greening local plant planting blanket for saline-alkali soil discharge |
-
2015
- 2015-04-21 CN CN201520245325.6U patent/CN204572722U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879361A (en) * | 2015-04-21 | 2015-09-02 | 合肥工业大学 | Expansion lock bolt |
| CN107061470A (en) * | 2017-04-21 | 2017-08-18 | 绵竹市凯瑞机械加工有限公司 | Parts connection check bolt |
| CN109356922A (en) * | 2018-12-10 | 2019-02-19 | 重庆大学 | A kind of blind bolt |
| CN110663392A (en) * | 2019-09-19 | 2020-01-10 | 杭州中艺生态环境工程有限公司 | Loosening-proof ecological greening local plant planting blanket for saline-alkali soil discharge |
| CN110663392B (en) * | 2019-09-19 | 2022-01-04 | 杭州中艺生态环境工程有限公司 | Loosening-proof ecological greening local plant planting blanket for saline-alkali soil discharge |
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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: 20150819 Termination date: 20160421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |