CN205478750U - A multi -functional inflation screw for fixing signboard - Google Patents
A multi -functional inflation screw for fixing signboard Download PDFInfo
- Publication number
- CN205478750U CN205478750U CN201620057960.6U CN201620057960U CN205478750U CN 205478750 U CN205478750 U CN 205478750U CN 201620057960 U CN201620057960 U CN 201620057960U CN 205478750 U CN205478750 U CN 205478750U
- Authority
- CN
- China
- Prior art keywords
- screw
- screw rod
- hole
- head
- mark board
- 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
Abstract
The utility model relates to a multi -functional inflation screw for fixing signboard belongs to the building material field. It includes head and screw rod, the screw rod is straight cylindric, and is equipped with the screw thread on it, multi -functional inflation screw inside is equipped with conical through -hole, aperture pretext portion to the screw rod afterbody of conical through -hole reduces gradually, be equipped with on the screw rod with the communicating opening of conical through -hole, just the head is close to to opening one end, and the other end leads directly to the screw rod afterbody, the material of multi -functional inflation screw is plastics. The utility model discloses the range of application is extensive, both can be used to being connected of in kind of component and wall body uniform thickness, can be used to the connection between the thin structure again, can cut the length of screw, beauty and practicability at will, self have locking dynamic exercise can, need not plus the spring shim, convenient succinct.
Description
Technical field
This utility model relates to a kind of Multifunctional expansion screw for constant mark board, belongs to building material field.
Background technology
The fixing of setscrew is to utilize wedge shape gradient to promote to expand generation friction bond stress, thus reaches fixed effect.Current setscrew is generally made up of the parts such as screw rod and expansion tube, and screw rod tail is coniform, and the internal diameter of cone is more than expansion tube internal diameter.When nut screwing clamping when, screw rod is displaced outwardly, and makes tapered segment move by moving axially of screw thread, and then forms the biggest normal pressure at the outer peripheral face of expansion tube, and the angle of circular cone is the least in addition, so that body of wall.Form friction self-locking between expansion tube and circular cone, and then reach fixation.
Though this type of current setscrew can also reach to fix the effect of connection, but it is only applicable to the body of wall equal thickness occasion more than setscrew length, and when the structural member of required fixing connection is relatively thin, it is very little that the effect of setscrew just shows；And the nut of this type of setscrew easily loosens, need additional spring washer for preventing from loosening.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency present in prior art, and provides a kind of Multifunctional expansion screw for constant mark board carrying anti-loosening effect.
The technical scheme in the invention for solving the above technical problem is: a kind of Multifunctional expansion screw for constant mark board, including head and screw rod, described head and screw rod are integrated, it is characterised in that: described screw rod is straight tube shape, and which is provided with screw thread；Described being provided with cone-shaped hole inside the Multifunctional expansion screw of constant mark board, the aperture of described cone-shaped hole is gradually reduced to screw rod tail by head；Described screw rod is provided with the opening communicated with cone-shaped hole, and described open at one end leads directly to screw rod tail near head, the other end；The material of the described Multifunctional expansion screw for constant mark board is plastics.
Opening on screw rod is coordinated fixing screw spreading by another, thus reaches to expand fixing effect；When need fixing be several relatively thin structural member time, the screw rod of Multifunctional expansion screw, now can be to grow part nut fixing to coordinate through the fixing hole on structural member the surface that grows structural member；Owing to the material of this Multifunctional expansion screw is plastics, so, when the length of screw rod still grows the outer surface of nut, can cut off and grow part, the most attractive in appearance but also facilitate.
Multifunctional expansion screw head for constant mark board is additionally provided with deep hole, described deep hole is coaxial with described cone-shaped hole, and combine one two-part through hole running through Multifunctional expansion screw of formation, described inner walls of deep holes is additionally provided with some cusped edges, described cusped edge is Rhizoma Sparganii taper, and is one of them faceted pebble with a part for described inner walls of deep holes.
Setting up the deep hole of above-mentioned band cusped edge in Multifunctional expansion screw, available cusped edge plays the effect of locking fastening, prevents screw because of factor loose or dislocations voluntarily such as shake and times.
Utility model compared with prior art, has the following advantages and effect: this utility model range of application is more extensive, can be not only used for the connection of component and body of wall uniform thickness material object part, can be used for again the connection between relatively thin structural member；Can the length of random shear screw, both artistic and practical；Self is with anti-loosening function, need not additional spring shim, convenient succinct.
Accompanying drawing explanation
Fig. 1 is this utility model plan structure schematic diagram.
Fig. 2 is that this utility model looks up structural representation.
Fig. 3 is this utility model left view structural representation.
Fig. 4 is that structural representation is partly cutd open in this utility model rip cutting.
Fig. 5 is this utility model Section A-A structural representation.
In accompanying drawing: 1 is head, 2 is screw rod, and 3 is deep hole, and 4 is cone-shaped hole, and 5 is opening, and 6 is cusped edge.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following example are that this utility model is not limited to following example to explanation of the present utility model.
Seeing Fig. 1-Fig. 5, the present embodiment includes head and screw rod.Screw rod is straight tube shape, and which is provided with screw thread；The head of the present embodiment is provided with a deep hole, and inner walls of deep holes is additionally provided with some cusped edges, and cusped edge is Rhizoma Sparganii taper, and is one of them faceted pebble with a part for inner walls of deep holes.The bottom of deep hole is provided with a cone-shaped hole, and the aperture of cone-shaped hole is gradually reduced to screw rod tail by deep hole bottom, and cone-shaped hole is coaxial with deep hole, and both combine one two-part through hole of formation；Screw rod is provided with the opening communicated with cone-shaped hole, and open at one end leads directly to screw rod tail near head, the other end；The material of the present embodiment is plastics.
During use, if the structural member thickness that required connection is fixed is more than the length of the present embodiment, the most first the present embodiment is filled in the fixing hole accomplished fluently in advance, another diameter screw between the size internal diameter of cone-shaped hole two ends is filled in again in cone-shaped hole, now the opening on screw rod is by screw spreading, thus reaches to expand fixing effect；When need fixing be several relatively thin structural member time, the screw rod of the present embodiment, now can be to grow part nut fixing to coordinate through the fixing hole on structural member the surface that grows structural member.
The material of the present embodiment is plastics, so, when the length of screw rod still grows the outer surface of nut, can cut off and grow part, the most attractive in appearance but also facilitate.
In the present embodiment, the deep hole with cusped edge can prevent screw loosening.
Although this utility model is open as above with embodiment; but it is not limited to protection domain of the present utility model; any technical staff being familiar with this technology, the change made in without departing from spirit and scope of the present utility model and retouching, protection domain of the present utility model all should be belonged to.
Claims (3)
1., for a Multifunctional expansion screw for constant mark board, it is integral type structure including head and screw rod, described head and screw rod, it is characterised in that: described screw rod is straight tube shape, and which is provided with screw thread；Described being provided with cone-shaped hole inside the Multifunctional expansion screw of constant mark board, the aperture of described cone-shaped hole is gradually reduced to screw rod tail by head；Described screw rod is provided with the opening communicated with cone-shaped hole, and described open at one end leads directly to screw rod tail near head, the other end；The material of the described Multifunctional expansion screw for constant mark board is plastics.
Multifunctional expansion screw for constant mark board the most according to claim 1, it is characterized in that: the described Multifunctional expansion screw head for constant mark board is additionally provided with deep hole, described deep hole is coaxial with described cone-shaped hole, and combining one two-part through hole running through the Multifunctional expansion screw for constant mark board of formation, described inner walls of deep holes is additionally provided with some cusped edges.
Multifunctional expansion screw for constant mark board the most according to claim 2, it is characterised in that: described cusped edge is Rhizoma Sparganii taper, and is one of them faceted pebble with a part for described inner walls of deep holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620057960.6U CN205478750U (en) | 2016-01-21 | 2016-01-21 | A multi -functional inflation screw for fixing signboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620057960.6U CN205478750U (en) | 2016-01-21 | 2016-01-21 | A multi -functional inflation screw for fixing signboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205478750U true CN205478750U (en) | 2016-08-17 |
Family
ID=56639036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620057960.6U Expired - Fee Related CN205478750U (en) | 2016-01-21 | 2016-01-21 | A multi -functional inflation screw for fixing signboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205478750U (en) |
-
2016
- 2016-01-21 CN CN201620057960.6U patent/CN205478750U/en not_active Expired - Fee Related
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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: 20160817 Termination date: 20170121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |