CN211648705U - Octagonal special-shaped crossed expansion bolt - Google Patents
Octagonal special-shaped crossed expansion bolt Download PDFInfo
- Publication number
- CN211648705U CN211648705U CN202020110898.9U CN202020110898U CN211648705U CN 211648705 U CN211648705 U CN 211648705U CN 202020110898 U CN202020110898 U CN 202020110898U CN 211648705 U CN211648705 U CN 211648705U
- Authority
- CN
- China
- Prior art keywords
- expansion
- screw rod
- nut
- rods
- eared
- 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
- 206010066054 Dysmorphism Diseases 0.000 claims abstract description 3
- 238000007906 compression Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- 238000010009 beating Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Abstract
The utility model discloses an octagonal dysmorphism crossing expansion bolts, including taking the ear nut, the riveting has two expansion link between two otic placodes of taking the ear nut, and the end of two expansion link passes through rivet connection, and the screw hole of taking the ear nut is threadless through-hole, and in the screw rod stretched into the through-hole, and promote two the expansion link outwards rotated respectively, made two expansion link be close to the both ends of screw rod outwards strut respectively, strut in the required fixed wall hole that drills out, the utility model discloses the both ends that set up on two expansion link outwards strut respectively, and the upper end is removed to do not influence their anchor effect, still saved the resource. The utility model is suitable for a bolt technical field.
Description
Technical Field
The utility model belongs to the technical field of the bolt, specifically speaking relates to an octagonal special-shaped crossing expansion bolts.
Background
At present, in the existing market, a shear type expansion bolt is used for fixing an article, and the shear type expansion bolt comprises a fixing piece with an expansion piece and a pushing piece, wherein the pushing piece is matched with the fixing piece and can move coaxially along the axis of the fixing piece; the expansion piece is hinged with the top end of the fixing piece, the lower end of the expansion piece is provided with an inclined plane facing the pushing piece, the top end of the pushing piece can be in contact with the inclined plane of the lower end of the expansion piece, and the expansion piece is pushed along the inclined plane of the lower end of the expansion piece, so that two ends of the expansion piece are propped open towards the outer side of the pushing piece. The both ends of inflation piece are propped in the fixed hole of bolt, but the mounting makes the circle, and the diameter is the same with the drill bit diameter of beating the anchor hole usefulness, but the drill bit can lose in the use, sometimes the hole of beating of drill bit, and the mounting can not put into.
SUMMERY OF THE UTILITY MODEL
The utility model provides an octagonal special-shaped cross expansion bolt has solved the problem that exists among the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides an octagonal dysmorphism crossing expansion bolts, includes the eared nut, has two expansion link in the riveting between eared nut two otic placodes, two the middle part of expansion link is through rivet connection, threaded hole internal thread of eared nut has the screw rod, the screw rod screw in threaded hole, and promote two the expansion link rotates outwards respectively, in order to constitute two the expansion link is fixed in the wall body, the cross-section of eared nut is the rectangle, eared nut circumference edges and corners chamfer to constitute the cross-section inscription of eared nut in rather than the cross-section of the drill bit of the same specification.
Furthermore, one ends of the two expansion rods, which are far away from the screw rod, are provided with barbs which are bent outwards, the screw rod is rotated to push the two expansion rods to rotate outwards, and the barbs are clamped on the inner wall of the mounting hole on the wall body to fix the expansion rods in the wall body.
Furthermore, an elastic component used for enabling the two ends of the expansion rod far away from the screw rod to be close to is fixedly connected between the two ends of the two expansion rods far away from the screw rod.
Furthermore, the elastic component comprises a compression spring fixedly connected between the two expansion rods.
Furthermore, a locking nut used for fixing the equipment on the wall body is connected to the screw rod in a threaded mode, a gasket and an elastic sheet are sleeved on the screw rod and between the locking nut and the lug nut, the equipment penetrates through the screw rod, and the locking nut is rotated to form fixing of the equipment.
Furthermore, the surface of each expansion rod, which is abutted to the screw rod, is an inclined surface.
The utility model discloses owing to adopted foretell structure, it compares with prior art, and the technical progress who gains lies in: the utility model discloses a take the ear nut, it has two expansion link to rivet between two otic placodes of the ear nut, rivet connection is passed through at the middle part of two expansion link, the threaded hole female connection of taking the ear nut has the screw rod, screw rod screw in threaded hole, and promote two expansion link and outwards rotate respectively, two expansion link apical grafting are on the inner wall of wall body mounting hole, fix in the wall body with constituting two expansion link, the cross-section of taking the ear nut is the rectangle, take ear nut circumference edges and corners to carry out the chamfer, the shape of the cross-section after the chamfer is internal to connect in the cross-section for the drill bit with the ear nut with the specification, thus, after the drill bit wearing and tearing, the mounting hole of beating is little, take the ear nut to put into, so do not so hard when the rectangle in the past, more convenient put into the ear nut.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a cross-sectional view of an eared nut in accordance with an embodiment of the present invention;
fig. 3 is a front view of an embodiment of the present invention;
fig. 4 is another angle structure diagram of the embodiment of the present invention.
Labeling components: 1-lug nut, 2-expansion rod, 3-screw rod, 4-compression spring, 5-rivet, 6-square head, 7-gasket, 8-elastic sheet, 9-locking nut, 10-barb and 11-threaded hole.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.
Embodiment is an octagonal special-shaped crossed expansion bolt
The embodiment discloses an octagonal special-shaped crossed expansion bolt, which comprises a lug nut 1, two expansion rods 2 are riveted between two lug plates of the lug nut 1, the middle parts of the two expansion rods 2 are connected through a rivet 5, a screw rod 3 is connected with the threaded hole 11 of the lug nut 2 in an internal thread manner, the screw rod 3 is screwed into the threaded hole 11 and pushes the two expansion rods 2 to respectively rotate outwards, the two expansion rods 2 are abutted against the inner wall of a wall body mounting hole to form two expansion rods 2 fixed in a wall body, the section of the lug nut 1 is rectangular, the circumferential edge angle of the lug nut 1 is chamfered, the shape of the chamfered section is in-line with the section of a drill bit with the same specification as that of the lug nut 1, therefore, after the drill bit is worn, the punched mounting hole is small, the lug nut 1 is placed in, and the previous effort is not needed when the lug nut 1 is rectangular, more convenient put into eared nut 1.
Specifically, the one end that screw rod 3 was kept away from to two expansion link 2 is formed with barb 10, and barb 10 outwards buckles, and the material of barb 10 is stainless steel or cast iron, rotates screw rod 3, and screw rod 3 promotes two expansion link 2 and outwards rotates, and barb 10 joint is on the inner wall of the mounting hole on the wall body to fix expansion link 2 in the mounting hole in the wall body.
Specifically, an elastic component is fixedly connected between two end portions of the two expansion rods 2 far away from the screw rod 3, the elastic component is used for enabling the two ends of the two expansion rods 2 to be close to each other, the elastic component is a compression spring 4 fixedly connected between the two expansion rods 2, when the expansion rod is installed in the installation hole, the lug-equipped nut 1 is placed into the installation hole, the screw rod 3 is screwed into the lug-equipped nut 1, the screw rod 3 pushes one ends of the two expansion rods 2 close to the screw rod 3, the two expansion rods 2 rotate outwards and abut against the inner wall of the installation hole, and the compression spring 4 overcomes elastic potential energy and is stretched by the two expansion rods 2; when the embodiment is disassembled and the screw rod 3 is screwed out of the lug nut 1, because the screw rod 3 is separated from the two expansion rods 2, the two ends of the two expansion rods 2 far away from the screw rod 3 are close to each other and separated from the inner wall of the mounting hole under the action of the compression spring 4, and at the moment, the embodiment can be disassembled very conveniently; one end of the screw rod 3 close to the expansion rod 2 is a round head or a flat head, so that the expansion rod 2 is easy to push to expand outwards.
Specifically, one end of the screw 3, which is far away from the expansion rod 2, is a square head 6, and the square head 6 can be changed into a triangular head, an inner hexagonal head, a hexagonal flange surface, a straight line or a cross groove, a hook, a hanging ring and other forms as necessary, so that the screw 3 is rotated by rotating the square head 6, and the screw 3 is screwed into the threaded hole 10 to push the expansion rod 2 to be unfolded outwards in order to rotate the screw 3.
Preferably, a locking nut 9 is connected to the screw rod 3 in a threaded manner, the locking nut 9 is used for fixing equipment on a wall body, a gasket 7 and an elastic sheet 8 are sleeved on the screw rod 3, the gasket 7 and the elastic sheet 8 are located between the locking nut 9 and the lug nut 1, the equipment penetrates through the screw rod 3 and is hung on the wall, then the gasket 7, the elastic sheet 8 and the locking nut 9 are sequentially sleeved on the screw rod 3, and the locking nut 9 is rotated, so that the equipment is fixed on the wall, the gasket 7 and the elastic sheet 8 can be not used or only one or both of the gasket 7 and the elastic sheet 8 can be used in actual use, and the quantity and the arrangement sequence of the gasket 7 and the elastic sheet 8 can be determined according to specific installation environments, the gasket 7 is used for increasing the contact area with a connected piece, dispersing the pressure on each square area, and preventing the lug nut 1 from being scratched; the function of the spring plate 8 is to prevent the lock nut 9 from being loosened.
Specifically, the surface of each expansion link 2 and 3 butts of screw rod is the inclined plane, and external force promotes screw rod 3, and screw rod 3 promotes the inclined plane of each expansion link 2 to the both ends that make two expansion links 2 outwards strut, accomplish expansion link 2 and fix in the mounting hole on the wall body.
The utility model discloses working process and principle:
firstly, drilling a mounting hole in a wall body by using an electric drill, and placing a lug nut 1 and an expansion rod 2 into the mounting hole; secondly, the screw rod 3 is pushed by external force, one end of the screw rod 3 pushes the inclined surfaces of the two expansion rods 2, barbs 11 at two ends of the two expansion rods 2 are respectively outwards spread and abutted in the mounting hole, and the expansion rods 2 are fixed in the mounting hole; then, the equipment penetrates through the screw rod 3 outside the wall body and is close to the outer surface of the wall body, then the gasket 7, the elastic sheet 8 and the locking nut 9 are sequentially sleeved on the screw rod 3, and the locking nut 9 is rotated, so that the equipment is fixed on the wall; when this embodiment is dismantled to needs, because compression spring 4 overcomes elastic potential energy to by two expansion link 2 elongations, because screw rod 3 and two expansion link 2 separations, two expansion link 2 make two expansion link 2 keep away from the both ends of screw rod 3 and be close to each other under compression spring 4's effect, and with the separation of mounting hole inner wall, at this moment, can conveniently dismantle this embodiment very much.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the protection of the claims of the present invention.
Claims (6)
1. The utility model provides an octagonal dysmorphism crossing expansion bolts which characterized in that: the expansion rod fixing device comprises an eared nut, wherein two expansion rods are riveted between two ear plates of the eared nut, the middle parts of the expansion rods are connected through rivets, a screw rod is connected with the thread hole of the eared nut in an internal thread manner, the screw rod is screwed into the thread hole and pushes the two expansion rods to rotate outwards respectively so as to form two expansion rods to be fixed in a wall body, the cross section of the eared nut is rectangular, and the circumferential edge angle of the eared nut is chamfered so as to form the cross section of the eared nut and connect the cross section of a drill bit with the same specification in an inscribed mode.
2. An octagonal shaped cross expansion bolt according to claim 1, wherein: and one ends of the two expansion rods, which are far away from the screw rod, are provided with barbs which are bent outwards, the screw rod is rotated to push the two expansion rods to rotate outwards, and the barbs are clamped on the inner wall of the mounting hole on the wall body to form the fixation of the expansion rods in the wall body.
3. An octagonal shaped cross expansion bolt according to claim 1, wherein: and an elastic component used for enabling the two ends of the expansion rod, which are far away from the screw rod, to be close to each other is fixedly connected between the two ends of the two expansion rods, which are far away from the screw rod.
4. An octagonal shaped cross expansion bolt according to claim 3, wherein: the elastic component comprises a compression spring fixedly connected between the two expansion rods.
5. An octagonal shaped cross expansion bolt according to claim 1, wherein: the screw rod is in threaded connection with a locking nut used for fixing equipment on a wall body, a gasket and an elastic sheet are sleeved on the screw rod between the locking nut and the lug nut, the equipment penetrates through the screw rod, and the locking nut is rotated to form the fixation of the equipment.
6. An octagonal shaped cross expansion bolt according to any one of claims 1 to 5, wherein: the surface of each expansion rod, which is abutted to the screw rod, is an inclined surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020110898.9U CN211648705U (en) | 2020-01-17 | 2020-01-17 | Octagonal special-shaped crossed expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020110898.9U CN211648705U (en) | 2020-01-17 | 2020-01-17 | Octagonal special-shaped crossed expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211648705U true CN211648705U (en) | 2020-10-09 |
Family
ID=72683388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020110898.9U Expired - Fee Related CN211648705U (en) | 2020-01-17 | 2020-01-17 | Octagonal special-shaped crossed expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211648705U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392842A (en) * | 2020-11-20 | 2021-02-23 | 西京学院 | Thin wall fixing device capable of being repeatedly used |
| CN114046300A (en) * | 2021-10-26 | 2022-02-15 | 东风柳州汽车有限公司 | Unthreaded hole locking device |
-
2020
- 2020-01-17 CN CN202020110898.9U patent/CN211648705U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392842A (en) * | 2020-11-20 | 2021-02-23 | 西京学院 | Thin wall fixing device capable of being repeatedly used |
| CN114046300A (en) * | 2021-10-26 | 2022-02-15 | 东风柳州汽车有限公司 | Unthreaded hole locking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |