CN210318113U - Combined cap nut - Google Patents
Combined cap nut Download PDFInfo
- Publication number
- CN210318113U CN210318113U CN201921024842.5U CN201921024842U CN210318113U CN 210318113 U CN210318113 U CN 210318113U CN 201921024842 U CN201921024842 U CN 201921024842U CN 210318113 U CN210318113 U CN 210318113U
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- elastic gasket
- outer hexagon
- counter bore
- cap
- thin
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Abstract
The utility model discloses a combination formula lid shape nut, including outer hexagon and semi-circular block, establish screw hole, its characterized in that in the outer hexagon: the outer hexagon body and the semi-circular block are of a split structure and are then riveted and fixed, the bottom end face of the outer hexagon body is provided with a counter bore, an elastic gasket is arranged in the counter bore, the inner diameter of the elastic gasket is larger than the large diameter of a threaded hole, the thickness of the elastic gasket is larger than the depth of the counter bore, and the difference between the thickness of the elastic gasket and the depth of the counter bore is smaller than the maximum compressed amount of the elastic gasket. The utility model discloses can realize low-cost many functions to can easily control fastening power, the lid shape nut after making the screw up has the fastening power of the same degree to workpiece surface, guarantees that workpiece surface atress is even, better adaptation fastening demand.
Description
Technical Field
The utility model relates to a fastener product, concretely relates to cap nut.
Background
The cap nut is named after the top of the outer hexagon body of the nut is provided with the semicircular cap, and the semicircular cap can be used for sealing the connecting thread pair of the nut and the connecting bolt. The cap nut seen in the market at present has the advantages that the outer hexagon body and the semicircular cap are basically of an integrated structure, the manufacturing cost is high, and the function is single. In addition, the cap nuts of the prior art are difficult to control the fastening force, and especially when a plurality of cap nuts are used for fastening the surface of the same workpiece, the cap nuts are difficult to fasten the surface of the same workpiece to the same degree, so that the stress on the surface of the workpiece is uneven, and great adverse effects are caused on the work of thin-wall workpieces and high-temperature workpieces. However, if the cap nut is manipulated by a torque wrench to ensure the same fastening force, but at a lower fastening force, the torque wrench does not function properly, so that a serious torque misalignment may occur, and the torque wrench is not suitable for wrenching the cap nut of a smaller specification.
Disclosure of Invention
The utility model aims at providing a can realize low-cost many functions to can easily control fastening power, make the fastening power that has the same degree to workpiece surface after screwing up, guarantee that workpiece surface atress is even, better adaptation fastening demand's combination formula cap nut.
The utility model discloses a through following technical scheme implementation:
modular cap nut, including outer hexagon and semi-circular block, establish screw hole, its characterized in that in the outer hexagon: the outer hexagon body and the semi-circular block are of a split structure and are then riveted and fixed, the bottom end face of the outer hexagon body is provided with a counter bore, an elastic gasket is arranged in the counter bore, the inner diameter of the elastic gasket is larger than the large diameter of a threaded hole, the thickness of the elastic gasket is larger than the depth of the counter bore, and the difference between the thickness of the elastic gasket and the depth of the counter bore is smaller than the maximum compressed amount of the elastic gasket.
According to the cap-shaped nut, the outer hexagon body and the semicircular nut cap are of the split structure which is riveted and fixed after being assembled, the outer hexagon body and the semicircular nut cap can be made of different materials, the manufacturing cost is reduced, and the cap-shaped nut can also achieve the functions of built-in functional parts and flexible replacement. In addition, the cap-shaped nut of the technical scheme can easily control the fastening force when in use, and can enable all the cap-shaped nuts after being screwed to easily realize the fastening force with the same degree on the surface of the workpiece, thereby ensuring that the stress on the surface of the workpiece is even and better adapting to the fastening requirement.
Preferably, the elastic washer is composed of a rubber body fixedly connected and a metal thin pad arranged at the bottom of the rubber body. The arrangement of the metal thin pad ensures that the bottom of the rubber elastic washer has higher-strength contact friction with the surface of a workpiece.
Preferably, the top end face of the outer hexagon body is provided with a thin-wall sleeve, the periphery of the bottom of the semicircular cover cap is provided with an outward flange, the outward flange is arranged in an inner hole of the thin-wall sleeve, and the inward flange arranged at the pipe orifice of the thin-wall sleeve is used for riveting and fixing the outward flange.
Drawings
The utility model discloses there is following figure:
FIG. 1 is a half-section structure view of the present invention,
fig. 2 is a top view in the direction of fig. 1.
Detailed Description
The details and the working principle of the embodiments of the present invention are described in detail below with reference to the accompanying drawings:
as shown in the figures, the combined cap nut of the utility model comprises an outer hexagon 5 and a semicircular cap 2, a threaded hole 6 is arranged in the outer hexagon 5, the outer hexagon 5 and the semicircular cap 2 are in split structure, the top end face of the outer hexagon 5 is provided with a thin-wall sleeve 1, the bottom periphery of the semicircular cap 2 is provided with an outward flange 4, the outward flange 4 is arranged in the inner hole of the thin-wall sleeve 1 and is riveted and fixed by an inward flange 3 arranged at the pipe orifice of the thin-wall sleeve 1, the bottom end face of the outer hexagon 5 is provided with a counter bore 7, an elastic washer is fixedly arranged in the counter bore 7 and consists of a fixedly connected rubber body 8 and a metal thin pad 9 arranged at the bottom of the rubber body, the two can adopt integral injection molding, the inner diameter of the elastic washer is larger than the major diameter of the threaded hole 6, the thickness of the elastic washer is larger than the depth of the counter bore 7, the difference between the thickness of the elastic washer and the depth of, the difference is a set value and is determined according to the specific tightening condition of the cap nut.
The working principle of the combined cap-shaped nut for realizing the same fastening force is as follows: when the cap nut is used, the cap nut is firstly screwed to the screw rod exposing the surface of the workpiece, then the cap nut is screwed until the bottom end face of the cap nut contacts with the surface of the workpiece, the elastic washers of all the cap nuts are elastically compressed and are compressed in the same amount, and then all the cap nuts can generate the fastening force with the same size on the surface of the workpiece, so that the cap nuts after being screwed can be easily fastened on the surface of the workpiece in the same degree, and the uniform stress on the surface of the workpiece is ensured.
Claims (3)
1. Modular cap nut, including outer hexagon and semi-circular block, establish screw hole, its characterized in that in the outer hexagon: the outer hexagon body and the semi-circular block are of a split structure and are then riveted and fixed, the bottom end face of the outer hexagon body is provided with a counter bore, an elastic gasket is arranged in the counter bore, the inner diameter of the elastic gasket is larger than the large diameter of a threaded hole, the thickness of the elastic gasket is larger than the depth of the counter bore, and the difference between the thickness of the elastic gasket and the depth of the counter bore is smaller than the maximum compressed amount of the elastic gasket.
2. The combined cap nut of claim 1, wherein: the elastic gasket is composed of a rubber body and a thin metal pad, wherein the rubber body is fixedly connected with the thin metal pad, and the thin metal pad is arranged at the bottom of the rubber body.
3. The combined cap nut of claim 1, wherein: the top end face of the outer hexagon is provided with a thin-wall sleeve, the periphery of the bottom of the semicircular cover cap is provided with an outward flange, the outward flange is arranged in an inner hole of the thin-wall sleeve, and the inward flange arranged at the pipe orifice of the thin-wall sleeve is used for riveting and fixing the outward flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921024842.5U CN210318113U (en) | 2019-07-03 | 2019-07-03 | Combined cap nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921024842.5U CN210318113U (en) | 2019-07-03 | 2019-07-03 | Combined cap nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210318113U true CN210318113U (en) | 2020-04-14 |
Family
ID=70148249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921024842.5U Active CN210318113U (en) | 2019-07-03 | 2019-07-03 | Combined cap nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210318113U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873715A (en) * | 2021-02-09 | 2021-06-01 | 上海迈道汽配有限公司 | Injection molding combined insert |
-
2019
- 2019-07-03 CN CN201921024842.5U patent/CN210318113U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873715A (en) * | 2021-02-09 | 2021-06-01 | 上海迈道汽配有限公司 | Injection molding combined insert |
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