CN202732587U - Fastening anti-skidding easy-removable expansion bolt - Google Patents
Fastening anti-skidding easy-removable expansion bolt Download PDFInfo
- Publication number
- CN202732587U CN202732587U CN 201220390874 CN201220390874U CN202732587U CN 202732587 U CN202732587 U CN 202732587U CN 201220390874 CN201220390874 CN 201220390874 CN 201220390874 U CN201220390874 U CN 201220390874U CN 202732587 U CN202732587 U CN 202732587U
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- China
- Prior art keywords
- expansion
- screw
- expansion sleeve
- sleeve
- sides
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- Expired - Fee Related
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Abstract
The utility model discloses a fastening anti-skidding easy-removable expansion bolt which is characterized in that an expansion sleeve is sleeved with an expansion screw, a screw thread is arranged on one end head of the expansion screw, symmetric triangular lugs are arranged on the excircle of two sides in the middle of the expansion screw, the other end head of the expansion screw is provided with a conical head, four open slots are equably arranged on the lengthways sleeve wall of the expansion sleeve, the expansion sleeve is separated into two pairs of long expansion plates and short expansion plates and the long expansion plates and the short expansion plates are symmetrical to each other, the lengthways wall of two sides of the expansion sleeve is formed into a groove, the expansion screw is inserted into the expansion sleeve, the triangular lug inclined planes on two sides at the excircle middle of the expansion screw is respectively inserted into the inner wall of the short expansion plate arranged on two sides of the expansion sleeve, the conical head at the end of the expansion screw nests between end heads of two long expansion plates of the expansion sleeve, and a washer and a nut are arranged at one end of the expansion screw which is provided with a screw thread. The mounted parts are not only tight, but also prevented from rotating and attaining fastening safety. At the same time the mounted parts are capable of easily removing and reusing, and thereby materials are saved.
Description
Technical field
The utility model relates to a kind of EXPANSION ANCHOR BOLTS, and specifically a kind of have a readily removable EXPANSION ANCHOR BOLTS of removing of fastening anti-slip.
Background technique
The EXPANSION ANCHOR BOLTS structure of generally using at present is: conical head is established in a termination of expansive screw, and another termination is provided with screw thread, and expansion sleeve is sleeved on the expansion expansive screw, and packing ring and nut are installed on the screw thread of expansive screw.In the process of installing, fastening nut, nut pulling expansive screw vertically moves in expansion sleeve, makes the expansion sleeve that is sleeved on the expansive screw outwards open (expansion), reaches the purpose of secure component.The structural imperfection of this EXPANSION ANCHOR BOLTS is, along with the continuation of nut pulling expansive screw, expansive screw is outer moving gradually, and expansive screw easily skids, can't realize the object of fastening assembling in expansion sleeve, remove in case improper being difficult to is installed, can't reuse.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, a kind of readily removable EXPANSION ANCHOR BOLTS of removing of fastening anti-slip that has is provided, by changing the structure of expansive screw and outer expansion sleeve, the expansion sleeve that is sleeved on the expansive screw is cooperatively interacted, thereby reaching EXPANSION ANCHOR BOLTS can install fastening object and can prevent from again skidding in the process of installing, the phenomenon that can not occur dallying in case install improperly, is removed easily.Can reuse, and packing ring can not come off, both convenient the installation saved again raw material.
The technical solution of the utility model is: a kind of have a readily removable EXPANSION ANCHOR BOLTS of removing of fastening anti-slip, comprises expansive screw, expansion sleeve, conical head, lug, packing ring, nut; It is characterized in that: expansion sleeve is sleeved on the expansive screw, is provided with screw thread in a termination of expansive screw, and cylindrical both sides, expansive screw middle part are provided with symmetrical " ⊿ " shape lug, and another termination of expansive screw is provided with conical head; One termination of expansion sleeve is provided with the flange that is connected as a single entity, be laid with four opening slots on vertical barrel of expansion sleeve, article four, opening slot is separated into expansion sleeve the expansion oplate of two pairs of symmetries, a pair of symmetry long expansion oplate, make the vertical wall in expansion sleeve both sides form groove, expansive screw injects in the expansion sleeve, De “ ⊿ on the cylindrical of both sides, expansive screw middle part " the shape lug is embedded in the groove of the vertical wall in expansion sleeve both sides; two Ge “ ⊿ on the expansive screw " inclined-plane on the shape lug inserts respectively the short expansion oplate inwall of expansion sleeve both sides, the conical head of expansive screw tail end embeds between the termination of two long expansion oplates of expansion sleeve one end, and packing ring and nut are contained on the expansive screw that is provided with screw thread one end.
The beneficial effects of the utility model are: on the expansion sleeve suit expansive screw, by changing the structure of expansive screw and expansion sleeve, making two Ge “ ⊿ of cylindrical both sides, expansive screw middle part " the shape lug embeds in the groove of the vertical wall in expansion sleeve both sides of two symmetries; two Ge “ ⊿ on the expansive screw " inclined-plane on the shape lug inserts respectively the short expansion oplate inwall of expansion sleeve both sides, the conical head of expansive screw tail end embeds in two long expansion oplates of expansion sleeve, the object of installing is both fastening, can not occur again rotating, reach fastening safety; Simultaneously, can remove easily again, reuse, and save material.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified
Fig. 1 is structural representation of the present utility model
Fig. 2 is the expansion expansive screw structural representation among Fig. 1
Fig. 3 is the expansion sleeve structural representation of Fig. 1
In the drawings 1, the expansive screw screw thread, 2, nut, 3, packing ring, 4, flange, 5, expansion sleeve, 6,6 ＇, short expansion oplate, 7,7 ＇, long expansion oplate, 8,8 ＇ lugs, 9, expansive screw, 10, conical head, 11, opening slot.
The utility model is to implement like this: with reference to accompanying drawing 1, accompanying drawing 2, termination at expansive screw 9 is provided with screw thread 1, be provided with " ⊿ " shape lug (8,8 ＇) of two symmetries at the middle part of expansive screw 9 cylindrical, another termination of expansive screw 8 is provided with conical head 10; Two Ge “ ⊿ on the middle part cylindrical of expansive screw 9 " shape lug (8,8 ＇) is positioned at a termination of two short expansion oplates (6,6 ＇) of expansion sleeve; Cylindrical both sides, the middle part De “ ⊿ of expansive screw 8 " shape lug (8,8 ＇) welding or employing grinding tool punching press once-through.
Accompanying drawing 3 is embodiments of expansion sleeve of the present utility model, on the expansion sleeve 5 suit expansive screws 9, one termination of expansion sleeve 5 is provided with the flange 4 that is connected as a single entity, be laid with four opening slots 11 on vertical barrel of expansion sleeve 5, article four, opening slot 11 is separated into expansion sleeve 5 expansion oplate of two pairs of symmetries, wherein the expansion oplate of a pair of symmetry is short by (6,6 ＇) in another long expansion oplate (7 to symmetry, 7 ＇), make the vertical wall in both sides of expansion sleeve 5 form groove, expansive screw 9 injects in the expansion sleeve 5, two Ge “ ⊿ of the cylindrical both sides, middle part of expansive screw 9 " shape lug (8; 8 ＇) is embedded in the groove of the vertical wall in expansion sleeve 5 both sides; two Ge “ ⊿ of cylindrical both sides, 9 middle part on the expansive screw " shape lug (8,8 ＇) inclined-plane on inserts respectively the expansion short slab (6 of expansion sleeve 5 both sides, 6 ＇) inwall, the conical head 10 of expansive screw 9 tail ends embeds the long expansion oplate (7 of expansion sleeve 5 two ends symmetries, 7 ＇) between the termination; Packing ring 3 and nut 2 are contained on the expansive screw 9 that is provided with screw thread one end, or do not fill packing ring 3, and nut 2 directly is contained on the expansive screw 9 of screw thread one end.Expansion sleeve and flange 4 adopt grinding tool punching press once-through, or flange 4 directly are welded on a termination of expansion sleeve.
Operating process of the present utility model is: expansive screw is inserted in the expansion sleeve, nut, packing ring are contained in an end of expansive screw screw thread, when object is installed, the EXPANSION ANCHOR BOLTS of assembling is inserted in the object that has openning hole in advance, screw the nut on the expansive screw, under the effect of expansion sleeve one end flange and packing ring, drive expansive screw and " ⊿ " shape lug and expansive screw tail end conical head mobile together; two short expansion oplates and two long expansion oplates on the expansion sleeve are opened simultaneously, on the fastening object of object.
Work as improper use, in the time of need to extracting EXPANSION ANCHOR BOLTS, as long as the nut inhour is screwed, De “ ⊿ on the expansive screw " shape lug and conical head and expansion sleeve unclamp simultaneously; return to initial position; unload nuts and washers, prize the flange on the expansion sleeve, just can extract like a cork expansion sleeve and expansive screw.
Claims (1)
1. one kind has the readily removable EXPANSION ANCHOR BOLTS of removing of fastening anti-slip, comprises expansive screw, expansion sleeve, conical head, lug, packing ring, nut; It is characterized in that: expansion sleeve is sleeved on the expansive screw, is provided with screw thread in a termination of expansive screw, and cylindrical both sides, expansive screw middle part are provided with symmetrical " ⊿ " shape lug, and another termination of expansive screw is provided with conical head; One termination of expansion sleeve is provided with the flange that is connected as a single entity, be laid with four opening slots on vertical barrel of expansion sleeve, article four, opening slot is separated into expansion sleeve the expansion oplate of two pairs of symmetries, wherein the expansion oplate of a pair of symmetry is shorter than another to the long expansion oplate of symmetry, make the vertical wall in expansion sleeve both sides form groove, expansive screw injects in the expansion sleeve, De “ ⊿ on the cylindrical of both sides, expansive screw middle part " the shape lug is embedded in the groove of the vertical wall in expansion sleeve both sides; two Ge “ ⊿ on the expansive screw " inclined-plane on the shape lug inserts respectively the short expansion oplate inwall of expansion sleeve both sides, between the termination of two long expansion oplates of the conical head embedding expansion sleeve of expansive screw tail end, packing ring and nut are contained on the expansive screw that is provided with screw thread one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220390874 CN202732587U (en) | 2012-08-05 | 2012-08-05 | Fastening anti-skidding easy-removable expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220390874 CN202732587U (en) | 2012-08-05 | 2012-08-05 | Fastening anti-skidding easy-removable expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732587U true CN202732587U (en) | 2013-02-13 |
Family
ID=47658289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220390874 Expired - Fee Related CN202732587U (en) | 2012-08-05 | 2012-08-05 | Fastening anti-skidding easy-removable expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732587U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090718A (en) * | 2015-09-21 | 2015-11-25 | 中国人民解放军63908部队 | Plug-in type expansion connecting structure |
-
2012
- 2012-08-05 CN CN 201220390874 patent/CN202732587U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090718A (en) * | 2015-09-21 | 2015-11-25 | 中国人民解放军63908部队 | Plug-in type expansion connecting structure |
| CN105090718B (en) * | 2015-09-21 | 2017-05-31 | 中国人民解放军63908部队 | A kind of plug-in expands attachment structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Ma Hongwen Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Ma Hongwen Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20150805 |
|
| EXPY | Termination of patent right or utility model |