CN217207219U - Cross-recessed pan head self-tapping screw - Google Patents
Cross-recessed pan head self-tapping screw Download PDFInfo
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- CN217207219U CN217207219U CN202220876372.0U CN202220876372U CN217207219U CN 217207219 U CN217207219 U CN 217207219U CN 202220876372 U CN202220876372 U CN 202220876372U CN 217207219 U CN217207219 U CN 217207219U
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- oil
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- pan head
- screw rod
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Abstract
The utility model discloses a cross recess pan head self-tapping screw, nut, screw rod and the nail point that sets up including top-down, the surface of nail point is equipped with the titanium carbonitride coating, the surface of screw rod is equipped with the thread, be equipped with the cross recess on the nut, the bottom of cross recess is equipped with the oil storage tank, the bottom of oil storage tank is connected with the oil duct, the oil duct is connected with a plurality of oil outlets, the oil-out of oil outlet is located the outer wall of screw rod. The utility model effectively protects the nail tip and prolongs the service life of the screw by arranging the titanium carbonitride coating with wear resistance, corrosion resistance and high temperature resistance on the outer surface of the nail tip; the arrangement of the oil duct is convenient for adding lubricating oil to the installed screw, and the threaded connection part is prevented from rusting; the locking block carries out secondary fastening to the screw, prevents effectively that the screw from taking off.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a technical field of fastener, especially self-tapping screw's technical field.
[ background ] A method for producing a semiconductor device
Tapping screws are mainly used for fastening objects, and the application range of the tapping screws is wide, for example, steel plates, saw plates and other metal plates, and the tapping screws can be divided into common tapping screws, self-cutting tapping screws, self-extruding tapping screws, self-drilling tapping screws and the like, wherein the self-cutting tapping screws comprise cross-recessed pan head tapping screws, and the existing cross-recessed pan head tapping screws still have some problems when in use: the screw cannot be secondarily fixed and is easy to loosen; the nail point at the bottom is easy to wear and has low reuse rate.
[ Utility model ] content
The utility model aims at solving the problem among the prior art, provide a cross recess pan head self-tapping screw, can make and reduce the nail point wearing and tearing, and can carry out the secondary and fix, improve the fastening nature of screw.
In order to realize the above object, the utility model provides a cross recess pan head self-tapping screw, nut, screw rod and the nail point that sets up including top-down, the surface of nail point is equipped with titanium carbonitride coating, the surface of screw rod is equipped with the thread, be equipped with the cross recess on the nut, the bottom of cross recess is equipped with the oil storage tank, the bottom of oil storage tank is connected with the oil duct, the oil duct is connected with a plurality of oil outlets, the oil-out of oil outlet is located the outer wall of screw rod.
Preferably, the screw rod is sleeved with a gasket, an annular groove is formed in the bottom of the nut, a locking block is arranged in the annular groove, a positioning through hole is formed in the gasket, and the locking block penetrates through the through hole.
Preferably, the bottom of the locking block is provided with a fixing point, the top of the locking block is provided with a sliding sheet matched with the annular groove, the sliding sheet is arranged in the annular groove, and a spring is arranged below the sliding sheet.
Preferably, the oil reservoir has a hemispherical shape.
The utility model has the advantages that: the utility model effectively protects the nail tip and prolongs the service life of the screw by arranging the titanium carbonitride coating with wear resistance, corrosion resistance and high temperature resistance on the outer surface of the nail tip; the arrangement of the oil duct is convenient for adding lubricating oil to the installed screw, so that the threaded connection part is prevented from rusting; the locking block carries out secondary fastening to the screw, prevents effectively that the screw from taking off.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a schematic structural view of a cross-recessed pan head self-tapping screw of the present invention;
FIG. 2 is a front sectional view of a cross recessed pan head self-tapping screw of the present invention;
fig. 3 is a nut schematic view of a cross recessed pan head self-tapping screw of the present invention;
fig. 4 is a schematic diagram of a washer of the cross recessed pan head self-tapping screw of the present invention.
In the figure: the novel oil-gas well nail comprises a nut 1, a screw 2, a nail tip 3, a titanium carbonitride coating 4, a cross groove 5, an oil storage groove 6, an oil duct 7, an oil outlet 8, a gasket 9, an annular groove 11, a locking block 12, a sliding sheet 13, a spring 14 and a positioning through hole 91.
[ detailed description ] embodiments
Referring to fig. 1, 2, 3 and 4, the cross-grooved pan head self-tapping screw of the present invention comprises a screw cap 1, a screw rod 2 and a nail tip 3 arranged from top to bottom, wherein the outer surface of the nail tip 3 is provided with a titanium carbonitride coating 4, the outer surface of the screw rod 2 is provided with threads, the screw cap 1 is provided with a cross groove 5, the bottom of the cross groove 5 is provided with an oil storage tank 6, the bottom of the oil storage tank 6 is connected with an oil duct 7, the oil duct 7 is connected with a plurality of oil outlets 8, the oil outlets of the oil outlets 8 are located on the outer wall of the screw rod 2, the screw rod 2 is sleeved with a gasket 9, the bottom of the screw cap 1 is provided with an annular groove 11, the annular groove 11 is internally provided with a locking block 12, the gasket 9 is provided with a positioning through hole 91, the locking block 12 penetrates through the through hole 91, the bottom of the locking block 12 is provided with a fixing tip, the top of the locking block 12 is provided with a sliding sheet 13 matched with the annular groove 11, the sliding sheet 13 is arranged in the annular groove 1, the spring 14 is arranged below the sliding sheet 13, the bottom of the spring 14 is fixed on the gasket 9, and the oil storage tank 6 is hemispherical.
The annular groove 11 is provided with a weld opening, the outer diameter of the sliding sheet 13 is smaller than the width of the weld opening, and the sliding sheet 13 is made of flexible rubber material.
The utility model discloses the working process:
the utility model relates to a cross recess pan head self tapping screw is in the course of the work, establishes the screw rod with the packing ring cover earlier on, then installs screw self tapping in the mounting hole, installs half the time, and the position of having adjusted the packing ring makes the latch segment run through positioning hole, continues the installation. After the installation, the latch segment can with installation face locking, play fine fastening effect.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (4)
1. The utility model provides a cross recess pan head self tapping screw which characterized in that: nut (1), screw rod (2) and nail point (3) that set up including top-down, the surface of nail point (3) is equipped with titanium carbonitride coating (4), the surface of screw rod (2) is equipped with the thread, be equipped with cross recess (5) on nut (1), the bottom of cross recess (5) is equipped with oil storage tank (6), the bottom of oil storage tank (6) is connected with oil duct (7), oil duct (7) are connected with a plurality of oil outlet (8), the oil-out of oil outlet (8) is located the outer wall of screw rod (2).
2. The cross-recessed pan head self-tapping screw of claim 1, wherein: the screw rod (2) is sleeved with a gasket (9), an annular groove (11) is formed in the bottom of the nut (1), a locking block (12) is arranged in the annular groove (11), a positioning through hole (91) is formed in the gasket (9), and the locking block (12) penetrates through the through hole (91).
3. The cross-recessed pan head self-tapping screw of claim 2, wherein: the bottom of latch segment (12) is equipped with fixed point, the top of latch segment (12) is equipped with annular groove (11) assorted slide (13), slide (13) set up in annular groove (11), the below of slide (13) is equipped with spring (14).
4. The cross-recessed pan head self-tapping screw of claim 1, wherein: the oil storage tank (6) is hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220876372.0U CN217207219U (en) | 2022-04-15 | 2022-04-15 | Cross-recessed pan head self-tapping screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220876372.0U CN217207219U (en) | 2022-04-15 | 2022-04-15 | Cross-recessed pan head self-tapping screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217207219U true CN217207219U (en) | 2022-08-16 |
Family
ID=82773958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220876372.0U Active CN217207219U (en) | 2022-04-15 | 2022-04-15 | Cross-recessed pan head self-tapping screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217207219U (en) |
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2022
- 2022-04-15 CN CN202220876372.0U patent/CN217207219U/en active Active
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