CN110513382B - Front-mounted nut structure - Google Patents
Front-mounted nut structure Download PDFInfo
- Publication number
- CN110513382B CN110513382B CN201910647284.6A CN201910647284A CN110513382B CN 110513382 B CN110513382 B CN 110513382B CN 201910647284 A CN201910647284 A CN 201910647284A CN 110513382 B CN110513382 B CN 110513382B
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- Prior art keywords
- nut
- rotation stopping
- mounting plate
- bulge
- fixing
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- 238000009434 installation Methods 0.000 claims description 13
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/041—Releasable devices
- F16B37/042—Releasable devices locking by rotation
Abstract
The invention relates to a front-mounted nut structure, wherein the front end of a front-mounted nut is provided with a front panel, the outer wall of the front-mounted nut is provided with a rotation stopping bulge and a fixing bulge, a rotation stopping lug is arranged in a mounting hole matched with the front-mounted nut, the thickness of the rotation stopping lug is smaller than that of the mounting plate, so that the rotation stopping lug is sunken relative to the front side surface of the mounting plate, a sunken area is formed by a sunken part and is used for mounting the front panel of the nut, an area without the rotation stopping lug in the mounting hole forms a rotating area, and two side surfaces of the rotation stopping lug form a rotation stopping vertical surface which is used for being matched with the rotation stopping bulge to play a rotation stopping role; the front nut is arranged in the mounting hole from the front side surface of the mounting plate, and the rotation stopping lug is positioned between the fixing bulge and the front panel of the nut after the nut is screwed in advance so that the nut is fixed on the mounting plate. The nut and bolt mounting and fixing device can conveniently and quickly mount and fix the nut and the bolt from the front side surface of the mounting plate, does not need additional tools, and is particularly suitable for the working conditions of narrow space or closed space behind the mounting plate.
Description
Technical Field
The invention relates to a front-mounted nut structure.
Background
The bolt and nut locking structure is wide, and is widely applied to various fields such as communication, industry, aerospace, ships and warships, and the visibility, accessibility and convenience of the operation process are particularly important. Particularly, in some narrow and closed spaces, a proper structure needs to be designed, and the nut is economically and conveniently mounted and fixed.
The nuts commonly used at present comprise hexagon nuts, rivet pulling nuts, press riveting nuts, chuck nuts, welding nuts and the like. Wherein hexagon nut, pressure rivet nut, chuck nut and weld nut belong to and adorn the nut after, need operate at the mounting panel rear side during the use, consequently need guarantee that operating personnel and instrument have sufficient space, and hexagon nut need block from the rear in screwing up the in-process, prevent to follow the commentaries on classics. These nuts cannot be used in small or enclosed spaces, such as metal enclosed square tube profiles.
The rivet nut belongs to the preceding nut of adorning, can realize the installation and the fixed of nut in the mounting panel front side, but need use specialized tool to master and correspond skill, it is higher to personnel and equipment requirement. And the special tool is generally large in size, and cannot be normally used in some narrow spaces.
Disclosure of Invention
The invention aims to provide a front nut structure which is matched with an opening of an installation plate, can conveniently and quickly realize the installation and fixation of a nut and a bolt from the front side surface of the installation plate, does not need additional tools, and is particularly suitable for narrow or closed installation spaces.
The technical problem is solved by adopting the following technical scheme, according to the front nut structure provided by the invention, the front nut is provided with a front panel which is used for being installed in a sunken area in an installation hole matched with the front nut, the outer wall of the front nut is provided with a rotation stopping bulge for stopping rotation and a fixing bulge for fixing, the rotation stopping bulge is arranged close to the front end of the nut, and the fixing bulge is arranged close to the tail end of the nut;
the mounting hole matched with the front nut is arranged on the mounting plate, a rotation stopping lug is arranged in the mounting hole, the thickness of the rotation stopping lug is smaller than the thickness of the mounting plate, so that the rotation stopping lug is recessed relative to the front side surface of the mounting plate, a recessed part forms a recessed area for mounting the front panel of the front nut, an area without the rotation stopping lug in the mounting hole forms a rotating area, and two side surfaces of the rotation stopping lug form a rotation stopping vertical surface for matching with the rotation stopping lug on the front nut to play a rotation stopping role;
the front nut is installed in the installation hole from the front side face of the installation plate, and the rotation stopping lug is positioned between the fixing bulge and the nut front panel after the nut is screwed in advance so that the nut is fixed on the installation plate.
Further, the distance d between the top surface of the fixing protrusion and the back surface of the front panel of the nut1Slightly larger than the thickness D of the rotation stopping bump, and the distance D between the top surface of the fixing bulge and the front side surface of the front panel of the nut1Is smaller than the total thickness D of the mounting plate, and two adjacent fixing bulges and rotation stopping bulges can simultaneously fall into a rotating area in the mounting hole.
Furthermore, the rotation stopping protrusion is positioned in the rotation area under the pre-tightening state of the front nut and the mounting hole.
Furthermore, after the mounting plate and the workpiece to be fixed are fixedly mounted in place through the front nut and the adaptive bolt, the rotation stopping lug is positioned between the fixing bulge and the nut front panel, the fixing bulge is tightly attached to the rotation stopping lug, the rotation stopping bulge is tightly attached to the rotation stopping vertical face, the nut front panel is positioned between the workpiece to be fixed and the rotation stopping lug and is sunk into the sunken area of the mounting hole, the front side face of the nut front panel is lower than the front side face of the mounting plate, and the front side face of the mounting plate is tightly attached to the workpiece to be fixed.
Furthermore, the front end of the rotation stopping bulge is connected with the front panel of the nut or integrated with the front panel of the nut.
Compared with the prior art, the invention has the following advantages:
the nut fixing device is simple in structure and easy to process, can realize the installation and the fixation of the nut from the front side surface of the mounting plate, realizes the installation and the fixation of a workpiece to be fixed and a bolt from the front side surface of the mounting plate, does not need additional tools or special tools, is particularly suitable for the environment that the space behind the mounting plate is narrow and the traditional bolt and nut cannot be adopted for installation, can be directly installed from the front side surface of the mounting plate, is simple to operate, is quick to assemble and disassemble, has low requirements on personnel and equipment, and is wide in application range.
Drawings
Fig. 1 is a schematic structural view of a front nut of the present invention.
Fig. 2 is a schematic view of the mounting holes adapted to the front nut of fig. 1 (the mounting plate is only schematic and does not represent a limited shape and configuration).
Fig. 3 is a front view of the front nut.
Fig. 4 is a schematic view of the front nut as it is installed in the mounting hole.
Fig. 5 is a schematic view of the pre-tightened state of the front nut (rear view in fig. 4).
Fig. 6 is a schematic view (rear side view in fig. 4) of the front nut and mounting hole in place.
FIG. 7 is a schematic view of the mounting plate and the workpiece to be fixed in a tightened state by using the front nut of the present invention.
Element and symbol description:
1: front nut 2: mounting hole 3: mounting plate 4: front panel
5: rotation stopping protrusion 6: fixing the projection 7: rotation stopping projection 8: depressed region
9: rotation region 10: rotation stopping vertical surface 11: workpiece to be fixed 12: bolt
Detailed Description
In order to further illustrate the technical means and technical effects adopted by the present invention, the present invention is described in detail below with reference to the examples.
It should be noted that: the terms indicating the directions of the front side, the rear side, the back side, the front end, the tail end, the top side and the bottom side of the present invention are based on the directions or the positional relationships shown in the drawings, and are only for convenience of describing the present invention, and thus, the present invention is not to be construed as being limited thereto.
The nut comprises a front nut 1 and a mounting hole 2 matched with the front nut and formed in a mounting plate 3, wherein a nut front panel 4 is arranged at the front end of the front nut, threads matched with a bolt 12 are arranged on the inner wall of the nut, a rotation stopping bulge 5 and a fixing bulge 6 are arranged on the outer wall of the nut, the rotation stopping bulge is arranged close to the front end of the nut, and the fixing bulge is arranged close to the tail end of the nut.
The mounting hole on the mounting plate is internally provided with a rotation stopping lug 7, the thickness D of the rotation stopping lug is smaller than the thickness D of the mounting plate, so that the rotation stopping lug is recessed relative to the front side surface of the mounting plate, a recessed part forms a recessed area 8 for mounting the front panel 4 of the front nut, and an area without the rotation stopping lug in the mounting hole forms a rotating area 9. Two sides of the rotation stopping convex block form a rotation stopping vertical face 10 which is used for matching with the rotation stopping bulge on the nut to prevent the nut from rotating along when the bolt is screwed down, and the rotation stopping function of the nut is realized, as shown in fig. 2.
The distance d1 between the top surface of the fixing protrusion 6 on the front nut and the back surface of the front panel of the front nut is slightly larger than the thickness d of the rotation stopping protrusion, so that the fixing protrusion rotates to the bottom of the rotation stopping protrusion in the mounting hole when the nut is conveniently mounted, the rotation stopping protrusion is located between the fixing protrusion and the front panel of the nut, and after the bolt and the nut are screwed down, the fixing protrusion is subjected to the pretightening force of the bolt and the nut, the nut and the mounting plate are drawn close, and the anti-loosening function is achieved. The distance D1 between the top surface of the fixing protrusion and the front side surface of the front panel of the front nut is smaller than the thickness D of the mounting plate, so that sufficient pre-tightening force is ensured after the bolt and the nut are locked, and the nut is prevented from loosening; the distance between the adjacent fixing protrusions and the rotation stopping protrusions is smaller than the distance between the adjacent two rotation stopping vertical faces in the rotating area in the mounting hole, so that the adjacent two fixing protrusions and the rotation stopping protrusions can fall into the rotating area in the mounting hole at the same time, and the mounting plate is placed in by the nuts before the nuts are convenient to install, as shown in fig. 4.
In the bolt and nut fixing structure, two parts are generally fixed together through a bolt and a nut, a mounting plate is matched with the nut, and the other part is a workpiece 11 to be fixed. Taking the mounting plate and the workpiece to be fixed as an example, the method for fixing the two parts together by adopting the invention comprises the following steps: the front nut is first installed in the mounting hole, as shown in fig. 4, the fixing protrusion and the rotation stopping protrusion on the nut are both aligned with the rotation area in the mounting hole and installed in the nut from the front side to the back side of the mounting plate, and the front panel of the nut is installed in the recessed area of the mounting hole. After the front panel of the nut is contacted with the rotation stopping lug, the nut is screwed in advance, the pre-screwing state is shown in fig. 5, the rotation stopping lug is positioned between the fixed lug and the front panel of the nut, and the rotation stopping lug is positioned in the rotating area. Then, a workpiece 11 to be fixed is placed on the top surface of the mounting plate, as shown in fig. 7, the mounting hole on the workpiece to be fixed corresponds to the inner hole of the nut, finally, a bolt 12 is inserted into the screw hole of the front nut from one side (the upper end of fig. 7) of the workpiece to be fixed, the bolt is tightened, the bolt drives the nut to rotate when being tightened, the rotation stopping bulge rotates to the rotation stopping vertical surface of the mounting plate opening, the positioning and rotation stopping of the nut are realized, simultaneously, the nut is pulled by the bolt, the mounting plate is tightened by the fixing bulge, after the nut and the bolt are installed in place, the state between the nut and the mounting hole is as shown in fig. 6 and 7, after being tightened, the rotation stopping bulge 7 is positioned between the fixing bulge 6 and the front panel 4 of the nut, the rotation stopping bulge 5 is tightly attached to the rotation stopping vertical surface 10, the top surface of the fixing bulge is tightly attached to the bottom surface of the rotation stopping bulge, a gap can be formed between the top surface of the rotation stopping bulge and the back surface of the front panel of the nut (the bottom surface of the front panel in fig. 7), the nut front panel is positioned between the workpiece 11 to be fixed and the rotation stopping lug 7 and is sunk in the depressed area, the front side surface of the nut front panel is lower than the front side surface of the mounting plate (the top surface of the mounting plate in figure 7), and the top surface of the mounting plate is tightly attached to the bottom surface of the workpiece.
Further, the front end of the rotation stopping protrusion is connected with the front panel of the nut or the front end of the rotation stopping protrusion is integrated with the front panel of the nut, as shown in fig. 1 and 3.
Furthermore, the number of the fixed bulges, the rotation stopping lugs and the rotating areas is equal.
Furthermore, the number and the shape of the fixing bulges and the rotation stopping bulges are not limited, so long as the fixing and the rotation stopping functions can be respectively realized. Fig. 1-7 show two fixing protrusions, two rotation-stopping protrusions, and two rotation-stopping areas.
Further, the diameter size of the mounting hole and the size of the corresponding front-mounted nut are not limited, if the size of the front-mounted nut and the corresponding mounting hole is too large, three fixed protrusions, three rotation stopping protrusions and three rotation areas can be arranged, or four fixed protrusions, four rotation stopping protrusions and four rotation areas can be arranged, the specific size and the number of the fixed protrusions, the rotation stopping protrusions and the rotation areas are not limited, and the size and the number of the rotation stopping protrusions, the rotation stopping protrusions and the number of the rotation areas are selected according to actual needs, but the principle and the structure are the same.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention in any way, and any simple modification, equivalent change and modification made by those skilled in the art according to the technical spirit of the present invention are still within the technical scope of the present invention without departing from the technical scope of the present invention.
Claims (3)
1. A front nut structure is characterized in that the front end of a front nut is provided with a front panel which is used for being installed in a recessed area in an installation hole matched with the front nut, the outer wall of the front nut is provided with a rotation stopping bulge for stopping rotation and a fixing bulge for fixing, the rotation stopping bulge is arranged close to the front end of the nut, and the fixing bulge is arranged close to the tail end of the nut;
the mounting hole matched with the front nut is arranged on the mounting plate, the rotation stopping lug is arranged in the mounting hole, the thickness of the rotation stopping lug is smaller than the thickness of the mounting plate, so that the rotation stopping lug is recessed relative to the front side surface of the mounting plate, the recessed part forms a recessed area for mounting the front plate of the front nut, the area without the rotation stopping lug in the mounting hole forms a rotating area, two adjacent fixing bulges and the rotation stopping bulge can simultaneously fall into the rotating area in the mounting hole, and two side surfaces of the rotation stopping lug form a rotation stopping vertical surface for matching with the rotation stopping bulge on the front nut to play a rotation stopping role; the number of the fixed bulges, the rotation stopping lugs and the rotating areas is equal;
the front nut is arranged in the mounting hole from the front side surface of the mounting plate, the rotation stopping lug is positioned between the fixing bulge and the front panel of the nut after the nut is screwed in advance, so that the nut is fixed on the mounting plate, and the rotation stopping bulge is positioned in the rotating area;
after the mounting plate and a workpiece to be fixed are fixedly mounted in place through the front nut and the adaptive bolt, the rotation stopping convex block is located between the fixing protrusion and the nut front panel and the fixing protrusion is tightly attached to the rotation stopping convex block, the rotation stopping protrusion is tightly attached to the rotation stopping vertical face, the nut front panel is located between the workpiece to be fixed and the rotation stopping convex block and is sunk in a sunken area of the mounting hole, the front side face of the nut front panel is lower than the front side face of the mounting plate, and the front side face of the mounting plate is tightly attached to the workpiece to be fixed.
2. The front nut assembly of claim 1 wherein the distance d between the top surface of the retention tab and the back surface of the front panel of the nut1Slightly larger than the thickness D of the rotation stopping bump, and the distance D between the top surface of the fixing bulge and the front side surface of the front panel of the nut1Less than the total thickness D of the mounting plate.
3. The front nut assembly according to claim 1, wherein the front end of the rotation stopping projection is connected to the front panel of the nut or is integrated with the front panel of the nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910647284.6A CN110513382B (en) | 2019-07-17 | 2019-07-17 | Front-mounted nut structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910647284.6A CN110513382B (en) | 2019-07-17 | 2019-07-17 | Front-mounted nut structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110513382A CN110513382A (en) | 2019-11-29 |
| CN110513382B true CN110513382B (en) | 2022-03-29 |
Family
ID=68622996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910647284.6A Active CN110513382B (en) | 2019-07-17 | 2019-07-17 | Front-mounted nut structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110513382B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2220609B2 (en) * | 1968-12-17 | 1975-04-03 | Compagnie De Materiel Et D'equipements Techniques C.O.M.E.T. S.A., Senlis (Frankreich) | |
| CN2417321Y (en) * | 1998-10-14 | 2001-01-31 | 富士康(昆山)电脑接插件有限公司 | Connector |
| CN101059196A (en) * | 2006-04-17 | 2007-10-24 | 阿尔卑斯电气株式会社 | Mounting construction and mounting method for screw thread components |
| CN201599297U (en) * | 2009-12-31 | 2010-10-06 | 李飞宇 | Fixed torque nut |
| EP2821656A1 (en) * | 2013-07-04 | 2015-01-07 | Secura Services AG | Quick fixing element |
-
2019
- 2019-07-17 CN CN201910647284.6A patent/CN110513382B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2220609B2 (en) * | 1968-12-17 | 1975-04-03 | Compagnie De Materiel Et D'equipements Techniques C.O.M.E.T. S.A., Senlis (Frankreich) | |
| CN2417321Y (en) * | 1998-10-14 | 2001-01-31 | 富士康(昆山)电脑接插件有限公司 | Connector |
| CN101059196A (en) * | 2006-04-17 | 2007-10-24 | 阿尔卑斯电气株式会社 | Mounting construction and mounting method for screw thread components |
| CN201599297U (en) * | 2009-12-31 | 2010-10-06 | 李飞宇 | Fixed torque nut |
| EP2821656A1 (en) * | 2013-07-04 | 2015-01-07 | Secura Services AG | Quick fixing element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110513382A (en) | 2019-11-29 |
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