CN207935245U - A kind of heeling-in screw - Google Patents
A kind of heeling-in screw Download PDFInfo
- Publication number
- CN207935245U CN207935245U CN201820266662.7U CN201820266662U CN207935245U CN 207935245 U CN207935245 U CN 207935245U CN 201820266662 U CN201820266662 U CN 201820266662U CN 207935245 U CN207935245 U CN 207935245U
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- China
- Prior art keywords
- nut
- annular
- heeling
- engagement portion
- thermoplastic cement
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Abstract
The utility model is related to a kind of heeling-in screws, including nut, disc positioning plate and the threaded screw rod of tool, the disc positioning plate is arranged between the nut and screw rod, the nut has the annular guide portion of the arc-shaped protrusion in cross section and the cylindrical engagement portion for fastening thermoplastic cement, have between the annular guide portion and the cylindrical engagement portion in indent arc-shaped transition, annular diversion division to guide thermoplastic cement to flow to, oblique embossing is formed by rolling on the outer surface of the cylindrical engagement portion.The improvement of the utility model Pass through above-mentioned technical proposal, due to being provided with annular guide portion and annular diversion division, when thermoplastic cement flows in the state of heating, it can scatter along the arc convex of annular guide portion and be converged via the concave annular cambered surface of annular diversion division, then it flows on the outer surface of cylindrical engagement portion, so that thermoplastic cement is bonded together with nut, and then achieve the effect that thermoplastic cement is evenly distributed on nut.
Description
Technical field
The utility model is related to field of hardware, and in particular to a kind of heeling-in screw.
Background technology
Heeling-in screw is also the one kind for belonging to screw, and special place is that heeling-in screw is fixed into thermoplastic cement
It integrally uses, however, when thermoplastic cement and heeling-in screw carry out hot melt fastening, is but usually present problems with：1, heeling-in
Since the plate face of positioning plate is bigger, plane is easily deformed screw, causes heeling-in unreliable in the depth of thermoplastic cement, error
Greatly；2, thermoplastic cement is bonded in that the bonding force on nut is uneven, when the screw rod of heeling-in screw carries external object, is easy for
Deformation even destroys plastic structure.
Invention content
The purpose of the utility model is to overcome the defect of the prior art, a kind of simple in structure, futuramic bury is provided
Screw is planted, which positions in heeling-in and the bonding force of thermoplastic cement on it can be made uniformly reliable.
To achieve the above object, the utility model uses a kind of heeling-in screw, including nut, disc positioning plate and tool
Threaded screw rod, the disc positioning plate are arranged between the nut and screw rod, and it is in arc that the nut, which has cross section,
The annular guide portion of shape protrusion and the cylindrical engagement portion for fastening thermoplastic cement, the annular guide portion and the cylinder
Between engaging portion have in indent arc-shaped transition, to guide thermoplastic cement flow to annular diversion division, the cylinder
Oblique embossing is formed by rolling on the outer surface of engaging portion.
Preferably, the cylindrical engagement portion and the position of disc positioning plate handing-over form wedge-shaped intrusion slot.
Preferably, on the disc positioning plate, towards there is circular orientation protrusion on the side of screw rod.
Preferably, several blind holes are radially offered on the annular diversion division.
By the above-mentioned technical proposal improvement to the prior art, the heeling-in screw of the utility model has reached following several respects
Advantageous effect：1, the bonding force of the nut of thermoplastic cement and heeling-in screw is more uniform：When thermoplastic cement is in the state of heating
When lower flowing, it can scatter along the arc convex of annular guide portion and be converged via the concave annular cambered surface of annular diversion division,
Then it flows on the outer surface of cylindrical engagement portion so that thermoplastic cement is bonded together with nut, and then reaches thermoplastic cement
The effect being evenly distributed on nut；2, since the rolling in appearance of cylindrical engagement portion has slanting embossing, i.e. discharge laterally
Embossing, thus, it can be known that bonding force of the thermoplastic cement on the cylindrical engagement portion is more solid and reliable；3, due in disc
It is provided with circular orientation protrusion on positioning plate, effectively raises the non-deformability of disc positioning plate, and directly use ring
When shape positioning protrusion is positioned, the station-keeping mode of plane-plane contact can be effectively changed to the pattern of line face positioning, positioning accurate
Accuracy higher；4, due to offering wedge-shaped intrusion slot in the delivery position of cylindrical engagement portion and disc positioning plate, work as hot melt
When plastic cement is enough, effectively the thermoplastic cement of redundance can be inducted into the wedge shape intrusion slot, and thermoplastic cement can be reinforced
Axial direction bonding force after molding；Obviously, it is further to reinforce thermoplastic cement axial bonding force after molding without easy ting produce
It axially falls off, specially several blind holes is radially opened up on the annular diversion division in the utility model, to guide at least partly
Thermoplastic cement flow into the blind hole, improve thermoplastic cement peel performance in the axial direction.
Description of the drawings
Fig. 1 is the structural schematic diagram of heeling-in screw in the utility model.
Specific implementation mode
As shown in Figure 1, the present embodiment uses a kind of heeling-in screw, including nut 10, disc positioning plate 11 and have
The screw rod 12 of screw thread, the disc positioning plate 11 are arranged between the nut 10 and screw rod 12, and the nut 10 has cross
The annular guide portion 100 of the arc-shaped protrusion in section and the cylindrical engagement portion 101 for fastening thermoplastic cement, the annular guiding
Between portion 100 and the cylindrical engagement portion 101 have in indent arc-shaped transition, to guide thermoplastic cement flow to ring
Shape diversion division 102, in the present embodiment, Pass through above-mentioned technical proposal is, it is apparent that when thermoplastic cement flows in the state of heating
When dynamic, it can scatter along the arc convex of annular guide portion 100 and be converged via the concave annular cambered surface of annular diversion division 102
It is poly-, it then flows on the outer surface of cylindrical engagement portion 101 so that thermoplastic cement is effectively bonded together with nut 10, leads to
It crosses the mode that this thermoplastic cement flows naturally and reaches thermoplastic cement equally distributed effect on nut；In the present embodiment,
For the bonding force for further increasing between thermoplastic cement and nut 10, pass through rolling on the outer surface of the cylindrical engagement portion 101
Swaging is at oblique embossing 1010.
It has been shown that, in the present embodiment, the cylindrical engagement portion 101 and the disc positioning plate 11 handing-over in Fig. 1
Position forms wedge-shaped intrusion slot 110, and the wedge shape intrusion slot 110 effect is mainly reflected in following two aspect：1, when thermoplastic cement foot
When amount, effectively the thermoplastic cement of redundance can be inducted into the wedge shape intrusion slot；2, further strengthen thermoplastic cement at
Axial bonding force after type so that be not easy to fall off in the axial direction after thermoplastic cement molding；Obviously, also obviously may be used by Fig. 1
Know, further to ensure thermoplastic cement reliability in the axial direction, the present embodiment also specially in the annular water conservancy diversion
Several blind holes 1020 are radially offered in portion 102.
In the present embodiment, on the disc positioning plate 11, towards having circular orientation protrusion on the side of screw rod 12
111；The setting of this structure effectively raises the non-deformability of disc positioning plate 11, and in the present embodiment, directly
It connects when being positioned with circular orientation protrusion 111, it can be effectively by plane-plane contact (side of disc positioning plate 11 and reference plane
Station-keeping mode before) it is changed to line face contact (station-keeping mode between circular orientation protrusion 111 and reference plane), accurate positioning
Spend higher.
The basic principles and main features and advantage of the utility model have been shown and described above.The technology people of the industry
Member it should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe
The principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model also have various changes
Change and improve, these various changes and improvements fall within the scope of the claimed invention.The protection of the requires of the utility model
Range is according to the attached claims and its equivalent thereof.
Claims (5)
1. a kind of heeling-in screw, including nut, disc positioning plate and the threaded screw rod of tool, the disc positioning plate are set
It sets between the nut and screw rod, it is characterised in that：The nut have the arc-shaped protrusion in cross section annular guide portion with
Cylindrical engagement portion for fastening thermoplastic cement, it is in indent to have between the annular guide portion and the cylindrical engagement portion
Arc-shaped transition, annular diversion division to guide thermoplastic cement to flow to, pass through on the outer surface of the cylindrical engagement portion
Rolling forms oblique embossing.
2. a kind of heeling-in screw according to claim 1, it is characterised in that：The cylindrical engagement portion and the disc
The position of positioning plate handing-over forms wedge-shaped intrusion slot.
3. a kind of heeling-in screw according to claim 1 or 2, it is characterised in that：On the disc positioning plate, towards spiral shell
There is circular orientation protrusion on the side of bar.
4. a kind of heeling-in screw according to claim 1 or 2, it is characterised in that：It is radially opened up on the annular diversion division
There are several blind holes.
5. a kind of heeling-in screw according to claim 3, it is characterised in that：If radially being offered on the annular diversion division
Dry blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820266662.7U CN207935245U (en) | 2018-02-24 | 2018-02-24 | A kind of heeling-in screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820266662.7U CN207935245U (en) | 2018-02-24 | 2018-02-24 | A kind of heeling-in screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207935245U true CN207935245U (en) | 2018-10-02 |
Family
ID=63653066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820266662.7U Active CN207935245U (en) | 2018-02-24 | 2018-02-24 | A kind of heeling-in screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207935245U (en) |
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2018
- 2018-02-24 CN CN201820266662.7U patent/CN207935245U/en active Active
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