CN205478841U - Fastening mechanism - Google Patents
Fastening mechanism Download PDFInfo
- Publication number
- CN205478841U CN205478841U CN201620042842.8U CN201620042842U CN205478841U CN 205478841 U CN205478841 U CN 205478841U CN 201620042842 U CN201620042842 U CN 201620042842U CN 205478841 U CN205478841 U CN 205478841U
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- China
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- nut
- screw rod
- rod head
- spring shim
- screw head
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Abstract
The utility model provides a fastening mechanism, the tool comprises a scre, the screw rod is equipped with the screw head or disposes connected nut, radial protrusion in the screw rod of screw head, and nut or screw head dispose the spring shim, set up the tooth's socket on the bottom surface of nut or screw head, set up the elasticity tooth on the spring shim, just tooth's socket on elasticity tooth and nut or the screw head bottom surface is the pawl meshing, only allows nut or screw head rotatory towards screwing up the direction, and the elasticity tooth in addition the part expose in the periphery of nut or screw head, make the elasticity tooth warp because of it exposes partial pressurized, relieve the pawl meshing with nut or screw head, the spring shim has rotation -proof structure. The utility model discloses the application scenario is extensive, fastens easy operation, has self -locking function, and its joint strength may can unpack apart again than the welding moreover as required, and simple structure, with low costs.
Description
Technical field
This utility model relates to a kind of retention mechanism, can apply to the occasion using screw rod, nut to connect.
Background technology
In the occasion using screw rod, nut to connect, due to factors such as shaking, expand with heat and contract with cold, this can be caused to loosen in use for some time for the connection of fastening.In the higher occasion of security requirement or above-mentioned situation than more serious occasion, needs welding guarantees that attachment security is reliable, but this not only increases cost and operation, and, the heat that welding produces can affect the structure of surrounding；Or needing to reinforce with more complicated mechanism, this increases operation and cost equally.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of retention mechanism, and its tightening operation is simple, have auto-lock function, and can take apart as required again.To this end, this utility model is by the following technical solutions:
A kind of retention mechanism, including screw rod, described screw rod is provided with screw rod head or is configured with connected nut, screw rod head radially protruding is in screw rod, it is characterized in that nut or screw rod head are configured with spring shim, on the bottom surface of nut or screw rod head, teeth groove is set, Elastic Teeth is set on spring shim, and the teeth groove on described Elastic Teeth and nut or screw rod head bottom surface is pawl engagement, nut or screw rod head is only allowed to rotate towards tightening direction, and Elastic Teeth also has part to expose the periphery at nut or screw rod head, make Elastic Teeth can deform because of its exposed portion pressurized, release and engage with the pawl of nut or screw rod head；Described spring shim has anti-rotation structure.
Further, the inner hole wall of described spring shim has the described anti-rotation structure of bending downwards.
Further, the bottom of described nut or screw rod head outwards annular is protruded, and the teeth groove on the bottom surface of nut or screw rod head forms loop shaped at nut or screw rod head outer side bottom surface, and described nut or screw rod head also configure that male member, male member pad exceeds the groove face of teeth groove at nut or the lower section of screw rod head, male member.
Further, the inner side of spring shim is plane round, and outside is described Elastic Teeth, and male member can pad on plane round.
Owing to using the technical solution of the utility model, tightening operation is simple, have auto-lock function, and its bonding strength equals to welding, and can take apart as required again, and simple in construction, low cost.This utility model application scenario is extensive, can be used in the multiple securing members such as crab-bolt, bolt, rivet bolt, be applicable to all kinds of building furred ceiling, pipeline hangs, hang the connection such as support, curtain wall and door and window, control chamber, bathroom, it is applicable to the road surfaces such as all kinds of airports grade separation, bridge, tunnel, subway, highway, city intersection continue, it is adaptable under changing on shock resistance, the subway of high wet zone, high ferro, electric power, the engineering such as tunnel, harbour, building external envelope structure, basement uses.
Accompanying drawing explanation
Fig. 1 is the exploded view of a kind of embodiment of this utility model.
Fig. 2 is the axonometric chart of the spring shim in Fig. 1.
Fig. 3 is the top view of Fig. 1.
Fig. 4 is the schematic diagram of this utility model another embodiment, and wherein, load male member is integrated with screw rod.
Fig. 5 is the exploded view of this utility model another embodiment.
Fig. 6 is the schematic diagram of nut in Fig. 5 illustrated embodiment.
Detailed description of the invention
As Figure 1-4.Retention mechanism provided by the utility model, including screw rod 1, described screw rod 1 is provided with screw rod head 10, and screw rod head 10 radially protruding is in screw rod 1.
Screw rod head 10 is configured with spring shim 2, teeth groove 11 is set on the bottom surface of screw rod head 10, spring shim 2 is enclosed within outside screw rod 1, Elastic Teeth 21 is set on spring shim 2, and the teeth groove 11 on described Elastic Teeth 21 and screw rod head bottom surface is pawl engagement, only allows a screw rod to rotate towards tightening direction, and Elastic Teeth 21 also has part to expose in the periphery of screw rod head 10, make Elastic Teeth 21 can deform because of its exposed portion pressurized, release and engage with the pawl of screw rod head.The inner hole wall of described spring shim has the anti-rotation structure 22 of bending downwards.Anti-rotation structure 22 can coordinate with the hole wall in the hole that screw rod 1 is worn makes spring shim not rotate, thus forms self-locking removable anti-rotation loosening configuration.The anti-rotation structure 22 of spring shim can also be the structure on the peripheral position of spring shim or end face, bottom surface.
Described spring shim can use stamping parts, forms its profile, Elastic Teeth and described anti-rotation structure in punching press.
The bottom 12 outwards annular of bolt head is protruded, teeth groove 11 on screw rod head bottom surface forms loop shaped at screw rod head outer side bottom surface, for guarantee to arrange on spring shim Elastic Teeth crooked position is not compacted and elastic force is lasting, described screw arrangement has male member 3, male member 3 pads the lower section at screw rod head 10, male member 3 exceeds the groove face of teeth groove 11, so when installing connection, ensure that the bending root of Elastic Teeth 21 is not compacted, the Elastic Teeth 21 making spring shim 2 reliably can either carry out pawl with the teeth groove 11 of screw rod head 10 and engage, screw rod 1 tightening direction is not blocked when rotating, otherwise then can not rotate, and when disassembly is desired, telescopic instrument (electric or hand) is enclosed within outside screw rod head 10 and is pressed downward against, Elastic Teeth 21 can uniformly be flattened and all solutions except pawl engage, can carry out unscrewing operation.The inner side of spring shim 2 is plane round 23, and outside is described Elastic Teeth 21, and male member 3 can pad on plane round 23.
Described screw rod and male member 3 are integrated (such as Fig. 4), it is also possible to for split (such as Fig. 1).
Referring to the drawings 2,5,6.This is the embodiment of this utility model application and chemical anchor bolts, and wherein, drawing reference numeral 4 is crab-bolt bar, and its top is the screw rod 40 being connected with nut 5.
Nut 5 is configured with spring shim 2, teeth groove 51 is set on the bottom surface of nut 5, spring shim 2 is enclosed within outside screw rod 40, Elastic Teeth 21 is set on spring shim 2, and the teeth groove 51 in described Elastic Teeth 21 and nut bottom is pawl engagement, only allows a nut to rotate towards tightening direction, and Elastic Teeth 21 also has part to expose the periphery at nut, make Elastic Teeth 21 can deform because of its exposed portion pressurized, release and engage with the pawl of nut.The inner hole wall of described spring shim has the anti-rotation structure 22 of bending downwards.Anti-rotation structure 22 can coordinate with the hole wall in the hole that screw rod 40 is worn makes spring shim not rotate, thus forms self-locking removable anti-rotation loosening configuration.The anti-rotation structure 22 of spring shim can also be the structure on the peripheral position of spring shim or end face, bottom surface.
The bottom 52 outwards annular of nut 5 is protruded, teeth groove 51 on screw rod head bottom surface forms loop shaped at screw rod head outer side bottom surface, for guarantee to arrange on spring shim Elastic Teeth crooked position is not compacted and elastic force is lasting, described nut 5 is configured with male member 3, male member 3 pads the lower section at nut 5, male member 3 exceeds the groove face of teeth groove 51, so when installing connection, ensure that the bending root of Elastic Teeth 21 is not compacted, the Elastic Teeth 21 making spring shim 2 reliably can either carry out pawl with the teeth groove 51 of nut 5 and engage, nut 5 tightening direction is not blocked when rotating, otherwise then can not rotate, and when disassembly is desired, telescopic instrument (electric or hand) is enclosed within outside nut 5 and is pressed downward against, Elastic Teeth 21 can uniformly be flattened and all solutions except pawl engage, can carry out unscrewing operation.The inner side of spring shim 2 is plane round 23, and outside is described Elastic Teeth 21, and male member 3 can pad on plane round 23.
Described nut 5 is integrated with male member 3, it is also possible to for split.
The foregoing is only specific embodiment of the utility model, but architectural feature of the present utility model is not limited thereto, any those skilled in the art is in field of the present utility model, and change or the modification made all are contained among protection domain of the present utility model.
Claims (4)
1. a retention mechanism, including screw rod, described screw rod is provided with screw rod head or is configured with connected nut, screw rod head radially protruding is in screw rod, it is characterized in that nut or screw rod head are configured with spring shim, on the bottom surface of nut or screw rod head, teeth groove is set, Elastic Teeth is set on spring shim, and the teeth groove on described Elastic Teeth and nut or screw rod head bottom surface is pawl engagement, nut or screw rod head is only allowed to rotate towards tightening direction, and Elastic Teeth also has part to expose the periphery at nut or screw rod head, make Elastic Teeth can deform because of its exposed portion pressurized, release and engage with the pawl of nut or screw rod head；Described spring shim has anti-rotation structure.
2. a kind of retention mechanism as claimed in claim 1, it is characterised in that the inner hole wall of described spring shim has the described anti-rotation structure of bending downwards.
3. a kind of retention mechanism as claimed in claim 1, it is characterized in that the bottom outwards annular of described nut or screw rod head is protruded, teeth groove on the bottom surface of nut or screw rod head forms loop shaped at nut or screw rod head outer side bottom surface, described nut or screw rod head also configure that male member, male member pad exceeds the groove face of teeth groove at nut or the lower section of screw rod head, male member.
4. a kind of retention mechanism as claimed in claim 3, it is characterised in that the inner side of spring shim is plane round, and outside is described Elastic Teeth, and male member can pad on plane round.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620042842.8U CN205478841U (en) | 2016-01-18 | 2016-01-18 | Fastening mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620042842.8U CN205478841U (en) | 2016-01-18 | 2016-01-18 | Fastening mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205478841U true CN205478841U (en) | 2016-08-17 |
Family
ID=56670453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620042842.8U Active CN205478841U (en) | 2016-01-18 | 2016-01-18 | Fastening mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205478841U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508390A (en) * | 2016-01-18 | 2016-04-20 | 杭州斯泰新材料技术有限公司 | Fastening mechanism |
-
2016
- 2016-01-18 CN CN201620042842.8U patent/CN205478841U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508390A (en) * | 2016-01-18 | 2016-04-20 | 杭州斯泰新材料技术有限公司 | Fastening mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |