CN208619499U - Nut and nut mounting structure - Google Patents
Nut and nut mounting structure Download PDFInfo
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- CN208619499U CN208619499U CN201821214579.1U CN201821214579U CN208619499U CN 208619499 U CN208619499 U CN 208619499U CN 201821214579 U CN201821214579 U CN 201821214579U CN 208619499 U CN208619499 U CN 208619499U
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- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 17
- 230000008859 change Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a kind of nut and nut mounting structure.In the nut of the utility model, the outward flange section projected radially outward along the nut is equipped in one end of nut thickness direction, it is equipped with and is formed between the convex edge that the nut projects radially outward, the outward flange section and the convex edge for matching the anti-rotation locating slot for merging and limiting the nut relative to the component rotation to be installed with component to be installed in the other end of nut thickness direction.The nut and nut mounting structure of the utility model are easily installed, replace and economy is high.
Description
Technical Field
The utility model relates to a nut technical field especially relates to a nut and nut mounting structure.
Background
In the prior art, a bolt is generally screwed on the back side of the mounting seat after the bolt sequentially passes through mounting holes of the component and the mounting seat, and then the bolt and the nut are screwed on the component side and the mounting seat side respectively by rotating a spanner. However, when the installation space of the components is very narrow, which is inconvenient for the operation of the wrench, the bolt and the nut in the prior art cannot be applied.
Currently, in the case where only one side can be operated with a wrench, the common method is to restrict the rotation of the bolt or nut on one side and to perform the tightening operation with a wrench on the other side. For example, the nut is directly welded to the back surface of the mounting seat, and then the bolt is passed through the component, the mounting seat, and the nut in this order, and then the bolt is tightened with a wrench on the component side.
In this mode, if the nut slips or other unable problems appear, the bolt can not be screwed up again, because the nut is welded on the mount pad, generally do and scrap the processing, even if will change the nut, the installation change process is also very loaded down with trivial details and time-consuming, can produce great expense, and the economic nature of use is very low.
SUMMERY OF THE UTILITY MODEL
The utility model provides a nut and nut mounting structure, the installation of being convenient for, change and economic nature are high.
In a first aspect, the utility model provides a nut is equipped with along the radial outside convex outward flange portion of nut in the one end of nut thickness direction, is equipped with along the radial outside convex interior flange portion of nut at the other end of nut thickness direction, forms between outer flange portion and the interior flange portion to be used for with treat that installation component cooperation and restriction nut prevent for treating installation component pivoted changes the constant head tank.
Furthermore, the anti-rotation positioning groove is provided with a groove bottom parallel to the thickness direction of the nut, and an anti-rotation surface matched with the part to be installed is formed at the groove bottom.
Further, the outer flange portion includes a first flange portion and a second flange portion that are disposed opposite to each other with respect to the center of the nut, the inner flange portion includes a third flange portion and a fourth flange portion that are disposed opposite to each other with respect to the center of the nut, the first flange portion and the third flange portion are both located in the same direction with respect to the circumferential direction of the nut, and the second flange portion and the fourth flange portion are both located in the same direction with respect to the circumferential direction of the nut, so that rotation-preventing positioning grooves are formed between the first flange portion and the third flange portion, and between the second flange portion and the fourth flange portion, respectively.
Further, the outer edges of the outer flange portion and the inner flange portion are both arc-shaped.
Further, the outer diameter of the inner flange portion is smaller than the outer diameter of the outer flange portion, and a boss protruding toward the inner flange portion is provided between the first flange portion and the second flange portion.
Further, the height of the boss is smaller than the spacing between the outer flange portion and the inner flange portion.
In a second aspect, the present invention provides a nut mounting structure, including: any of the technical scheme the nut, treat the installation component and will with treating the spare part that the installation component is connected with nut matched with, treat to be equipped with the mounting hole that runs through the installation component thickness direction on the installation component, the mounting hole includes microscler through-hole and the circular through-hole that is located the one end of microscler through-hole and communicates with microscler through-hole, circular through-hole diameter is greater than the maximum size of the outer fringe of outer flange portion, microscler through-hole is used for the position with nut matched with, and the pore wall edge of microscler through-hole is by the centre gripping in preventing changeing the constant.
Further, the hole diameter of the part through which the bolt passes is greater than or equal to the maximum dimension of the outer edge of the inner flange part; or,
the surface of the part opposite to the part to be mounted is provided with a counter bore capable of accommodating the inner flange part, and the counter bore is coaxial with a hole on the part for a bolt to pass through.
A third aspect, the present invention provides a nut mounting structure, including: the nut, the part to be installed matched with the nut and the part to be connected with the part to be installed in the technical scheme, the part to be installed comprises a long groove piece, a notch of the long groove piece is provided with an inward-folded edge, the nut is fixed on the long groove piece, and the edge of the notch of the long groove piece is clamped in an anti-rotation positioning groove of the nut.
Further, the hole diameter of the part through which the bolt passes is greater than or equal to the maximum dimension of the outer edge of the inner flange part; or,
the surface of the part opposite to the part to be mounted is provided with a counter bore capable of accommodating the inner flange part, and the counter bore is coaxial with a hole on the part for a bolt to pass through.
The utility model provides a nut and nut mounting structure is convenient for install, change and economic nature is high. Specifically, in the nut, an outer flange portion protruding outward in the radial direction of the nut is arranged at one end in the thickness direction of the nut, an inner flange portion protruding outward in the radial direction of the nut is arranged at the other end in the thickness direction of the nut, and an anti-rotation positioning groove for matching with the component to be mounted and limiting the rotation of the nut relative to the component to be mounted is formed between the outer flange portion and the inner flange portion. According to the arrangement, when the nut is installed on the component to be installed, the anti-rotation positioning groove of the nut is matched with the component to be installed, and the nut is limited to rotate relative to the component to be installed; simultaneously, along the outer flange card of the radial outside bulge of nut on the surface of treating the installation part, along the inner flange card of the radial outside bulge of nut on another surface of treating the installation part, restriction nut is for treating the removal of installation part in nut thickness direction like this, so reaches the effect of preventing changeing the nut. In addition, because the nut is not welded and fixed on the part to be installed like the prior art, when the nut slips or is otherwise unavailable, the nut can be taken off from the part to be installed at any time for replacement, and therefore, the economical efficiency is high.
Drawings
Fig. 1 is a schematic structural diagram of a nut according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a nut according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a nut mounting structure provided in the second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a component to be mounted in a nut mounting structure according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of another nut mounting structure according to a third embodiment of the present invention.
Description of reference numerals:
1-a nut; 11-an outer flange portion; 12-an inner flange portion; 13-anti-rotation positioning grooves; 14-groove bottom; 15-rotation prevention surface; 16-a first flange portion; 17-a second flange portion; 18-a third flange portion; 19-a fourth flange portion; 111-boss; 2-a component to be mounted; 21-mounting holes; 22-an elongated through hole; 23-circular through holes; 24-a mounting surface; 25-the surface on the back side; 26-front side surface; 27-a mounting seat; 28-long groove member; 29-notch edge; 211-a mounting surface; 212-the surface of the back side; 213-front side surface; 3-parts; 31-a through hole; 4-bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a nut according to an embodiment of the present invention. Fig. 2 is a cross-sectional view of a nut according to an embodiment of the present invention. As shown in fig. 1 and 2, one end of the nut 1 in the thickness direction of the nut is provided with an outer flange 11 protruding outward in the radial direction of the nut, the other end of the nut in the thickness direction of the nut is provided with an inner flange 12 protruding outward in the radial direction of the nut, an anti-rotation positioning groove 13 for cooperating with the component 2 to be mounted and limiting the rotation of the nut 1 relative to the component 2 to be mounted is formed between the outer flange 11 and the inner flange 12, the anti-rotation positioning groove 13 has a groove bottom 14 parallel to the thickness direction of the nut, and the groove bottom 14 forms an anti-rotation surface 15 for cooperating with the component 2 to be mounted. Further, the outer flange portion 11 includes a first flange portion 16 and a second flange portion 17 which are oppositely disposed with respect to the center of the nut 1, the inner flange portion 12 includes a third flange portion 18 and a fourth flange portion 19 which are oppositely disposed with respect to the center of the nut 1, the first flange portion 16 and the third flange portion 18 are both located in the same direction with respect to the nut circumferential direction, and the second flange portion 17 and the fourth flange portion 19 are both located in the same direction with respect to the nut circumferential direction, so that two rotation preventing grooves 13 are formed between the first flange portion 16 and the third flange portion 18, and between the second flange portion 17 and the fourth flange portion 19, respectively, two rotation preventing surfaces 15 are formed at the groove bottoms 14 of the two rotation preventing grooves 13, and the two rotation preventing surfaces 15 are parallel to each other.
Fig. 1 and 2 show an example in which the outer edge shapes of the outer flange portion 11 and the inner flange portion 12 are both circular arc shapes, that is, the first flange portion 16 and the second flange portion 17 are formed integrally, the outer flange portion 11 having a circular outer edge shape is formed integrally with the third flange portion 18 and the fourth flange portion 19, and the inner flange portion 12 having a circular outer edge shape, but it is needless to say that the first flange portion 16 and the second flange portion 17 may be provided separately, the outer edge shapes thereof are both square, rectangular, or other shapes, and the third flange portion 18 and the fourth flange portion 19 may be provided separately, and the outer edge shapes thereof are both square, rectangular, or other shapes. Further, here, the description has been given taking as an example that the outer flange portion 11 includes the first flange portion 16 and the second flange portion 17, and the inner flange portion 12 includes the third flange portion 18 and the fourth flange portion 19, but it is also possible that the outer flange portion 11 includes three or more flange portions, and the inner flange portion 12 includes three or more flange portions, as long as it is possible to form the rotation preventing positioning grooves 13 between the outer flange portion 11 and the inner flange portion 12 for engaging with the member to be mounted 2 and restricting the rotation of the nut 1 relative to the member to be mounted 2. Such variations as described above are within the scope of the present invention.
Preferably, when the outer edges of the outer flange portion 11 and the inner flange portion 12 are circular, the outer diameter of the inner flange portion 11 is smaller than the outer diameter of the outer flange portion 12, and a boss 111 protruding toward the inner flange portion 12 is provided on the outer flange portion 11 at a position between the first flange portion 16 and the second flange portion 17. The height of the boss 111 is smaller than the distance between the outer flange portion 11 and the inner flange portion 12.
When the nut 1 of the embodiment is used, the anti-rotation positioning groove 13 of the nut 1 is matched with the component 2 to be installed, namely, the anti-rotation surface 15 formed by the groove bottom of the anti-rotation positioning groove 13 is matched with the corresponding surface of the component 2 to be installed, so that the nut 1 is limited to rotate relative to the component 2 to be installed; meanwhile, the outer flange portion 11 is caught on one surface of the member 2 to be mounted, and the inner flange portion 12 is caught on the other surface of the member 2 to be mounted, so that the movement of the nut 1 in the nut thickness direction with respect to the member 2 to be mounted is restricted, and thus the effect of preventing the rotation of the nut 1 can be achieved, and thus the bolt 4 can be tightened only by performing a wrench operation at one end of the bolt 4 when the operable space at one side of the nut 1 is narrow. Because the nut 1 is not welded and fixed on the part 2 to be installed like the prior art, when the nut 1 slips or is otherwise unusable, the nut can be taken off from the part 2 to be installed at any time for replacement, and therefore, the economical efficiency is high. The nut 1 provided by the embodiment can effectively solve the problem of fastening on one side in a narrow space, has a wide use space and has great market prospect and economic benefit.
In the present embodiment, the outer flange portion 11 includes a first flange portion 16 and a second flange portion 17 which are oppositely disposed with respect to the center of the nut, the inner flange portion 12 includes a third flange portion 17 and a fourth flange portion 18 which are oppositely disposed with respect to the center of the nut, the first flange portion 16 and the third flange portion 18 are both located in the same direction with respect to the circumferential direction of the nut 1, and the second flange portion 17 and the fourth flange portion 19 are both located in the same direction with respect to the circumferential direction of the nut 1, so that rotation-preventing grooves 13 are respectively formed between the first flange portion 16 and the third flange portion 18, and between the second flange portion 17 and the fourth flange portion 19, as shown in fig. 1, so that two mutually parallel rotation-preventing surfaces 15 are formed, the rotation-preventing surfaces 15 are in contact with the corresponding surfaces of the component 2 to be mounted, and serve to prevent the nut 1. Wherein the distance between the first flange portion 16 and the third flange portion 18 and the distance between the second flange portion 17 and the fourth flange portion 19 are equal to each other, and the thickness of the portion of the component 2 to be mounted, which portion is engaged with the nut 2, is equal to each other.
The outer edge dimension of the inner flange portion 12 is smaller than the outer edge dimension of the outer flange portion 11, and the outer diameter of the inner flange portion 12 is smaller than the outer diameter of the outer flange portion 11 in the case where the outer edge shapes of the outer flange portion 11 and the inner flange portion 12 are both circular arc shapes. This is because the inner flange portion 12 is mainly used for positioning the nut 1 when the nut 1 is mounted on the elongated through hole 22 or the long groove member 28, and plays a role of preventing the nut 1 from falling off, and the inner flange portion 12 can also play a role of positioning the member to be mounted 2, and the inner flange portion 12 is not subjected to a fastening force and is used only for positioning and preventing the falling off. The outer flange 11 has a large outer edge and a large thickness, and is used to receive fastening force when the nut 1 is fixed.
Between the first flange portion 16 and the second flange portion 17, a boss 111 protruding toward the inner flange portion 12 is provided, the boss 111 has two boss side surfaces 112 parallel to the thickness direction of the nut 1, as shown in fig. 1, the boss side surfaces 112 and the rotation preventing surfaces 15 are on the same plane, as an extension of the rotation preventing surfaces 15, the contact area of the rotation preventing surfaces 15 and the component 2 to be mounted can be increased, when fastening with large torque is performed, because the contact area of the rotation preventing surfaces 15 is increased, even when the gap between the rotation preventing surfaces 15 and the corresponding mating surfaces of the component 2 to be mounted is large, the nut 2 is not rotated, the boss 111 increases the reliability and applicability of fastening of the nut 1, and the mounting is more convenient.
In addition, the height of the boss 111 is smaller than the interval between the outer flange portion 11 and the inner flange portion 12. The height of the boss 111 depends mainly on the plate thickness of the member to be mounted 2 at the mounting position of the nut 1, and the height of the boss 111 is set to be not less than 0.5mm lower than the interval between the outer flange portion 11 and the inner flange portion 12 (plate thickness of the member to be mounted 2). Taking fig. 3 in which the component 3 is mounted on the component 2 to be mounted by the bolt 4 and the nut 1 as an example, as seen from fig. 1 and 3, the structure is designed mainly so that the upper surface of the boss 111 is not flush with the surface of the component 2 to be mounted on the component 3 side when the nut 1 is mounted, and when the upper surface of the boss 111 is prevented from being flush with the surface of the component 3 on the component 2 to be mounted, the surface of the outer flange portion 11 on the inner flange portion 12 side is not flush with the surface 25 on the back side of the component 2 to be mounted, and the nut 1 cannot be fastened.
Fig. 3 is a schematic structural diagram of a nut mounting structure provided in the second embodiment of the present invention. Fig. 4 is a schematic structural diagram of a component to be mounted in a nut mounting structure according to a second embodiment of the present invention. The nut mounting structure in this embodiment can be applied to the nut 1 described in the first embodiment. As shown in fig. 3 and 4, the nut mounting structure of the present embodiment includes a nut 1, a component 2 to be mounted that is fitted to the nut 1, and a component 3 to be connected to the component 2 to be mounted, and a mounting hole 21 that penetrates through the component 2 to be mounted in the thickness direction is provided in the component 2 to be mounted, and the thickness of the hole edge of the mounting hole 21 is equal to the distance between the outer flange portion 11 and the inner flange portion 12 of the nut 1, or the thickness of the hole edge of the mounting hole 21 is smaller than the distance between the outer flange portion 11 and the inner flange portion 12 of the nut 1. The mounting hole 21 includes an elongated through hole 22 and a circular through hole 23 located at one end of the elongated through hole 22 and communicating with the elongated through hole 22, the diameter of the circular through hole 23 being larger than the maximum dimension of the outer edge of the outer flange portion 11 (the diameter of the outer flange portion 11), the elongated through hole 22 being a portion for fitting with the nut 1, when the nut 1 is mounted on the member 2 to be mounted, the hole wall edge of the elongated through hole 22 is held in the rotation-preventing positioning groove 13, and both mounting faces 24 of the elongated through-hole 22 in the thickness direction of the member 2 to be mounted are brought into contact with both rotation preventing faces 15 during the mounting of the nut 1, specifically, the distance between the two mounting surfaces 24 of the elongated through hole 22 is equal to the distance between the two anti-rotation surfaces 15, or the distance between the two mounting faces 24 of the elongated through hole 22 is slightly larger than the distance between the two anti-rotation faces 15, and the spacing between the two mounting faces 24 of the elongated through-hole 22 is smaller than the outer diameter dimensions of the outer flange portion 11 and the inner flange portion 12. The component 3 is further provided with a through hole 31 through which the bolt 4 passes, and the inner diameter of the through hole 31 is larger than the outer diameter of the inner flange portion 12.
Next, the mounting process of the nut mounting structure will be described by taking the nut 1 in which the outer edges of the outer flange 11 and the inner flange 12 are both arc-shaped as an example.
The outer flange portion 11 of the nut 1 is first inserted through the circular through hole 23 of the member 2 to be mounted so that the member 2 to be mounted is positioned substantially between the outer flange portion 11 and the inner flange portion 12 in the thickness direction thereof, and then the nut 1 is pushed a certain distance in the length direction of the elongated through hole 22, for example, stopped after reaching the middle position in the length direction of the elongated through hole 11, in a state where the rotation preventing surfaces 15 in the rotation preventing positioning grooves 13 of the nut 1 are respectively parallel to the two mounting surfaces 24 of the elongated through hole 22 and the inner flange portion 12 faces the side of the component 3, and therefore, the nut 1 does not fall off the member 2 to be mounted because the distance between the two mounting surfaces 24 of the elongated through hole 22 is smaller than the outer diameter dimension of the inner flange. As shown in fig. 3, since the thickness of the hole edge of the mounting hole 21 is smaller than the distance between the outer flange portion 11 and the inner flange portion 12 of the nut 1, when the bolt 4 is fastened, the surface of the component 3 close to the member 2 to be mounted is in close contact with the front surface side of the member 2 to be mounted, that is, the surface 26 on the front surface side, the inner flange portion 12 of the nut 1 is not restrained in the through hole 31, and the outer flange portion 11 of the nut 1 can be engaged with the back surface side of the member 2 to be mounted and is in close contact with the surface 25 on the back surface side (if the thickness of the hole edge of the mounting hole 21 is equal to the distance between the outer flange portion 11 and the inner flange portion 12 of the nut 1, the inner flange portion 12 is also engaged with the front surface side of the member 2 to be mounted and is in close contact with the surface 26 on the front surface side), at this time, the movement of; since the distance between the two mounting surfaces 24 of the elongated through hole 22 is slightly larger than the distance between the two rotation-preventing surfaces 15, after the nut 1 is rotated by a certain angle, the two rotation-preventing surfaces 15 are respectively clamped with the two mounting surfaces 24 of the elongated through hole 22, or the distance between the two mounting surfaces 24 is equal to the distance between the two rotation-preventing surfaces 15, when the nut 1 is not rotated by a certain angle, the two rotation-preventing surfaces 15 are respectively tightly attached to the two mounting surfaces of the elongated through hole 22, at this time, the rotation of the nut 1 relative to the component 2 to be mounted is limited, in conclusion, the movement of the nut 1 relative to the component 2 to be mounted in the thickness direction of the component 2 to be mounted is limited, and cannot rotate relative to the component 2 to be mounted, so that the nut 1 is temporarily fixed on the. At this time, the component 3 is placed on the component 2 to be mounted, and care is taken to mount the through hole 31 of the component 3 in alignment with the inner flange portion 12 so that the flange portion 12 can be just received in the through hole 31, which enables close fitting between the component 3 and the component 2 to be mounted without leaving a gap. And then, sleeving the gasket on the bolt 4, sequentially penetrating the bolt 4 sleeved with the gasket through the through hole 31 on the zero component 3 and the screw hole arranged on the nut 1, and screwing the bolt 4 on one side of the zero component 3 by using a spanner to complete installation.
When the nut 1 slips or is otherwise unusable, the bolt 4 is firstly taken down by a wrench, then the part 3 is taken away, at the moment, the nut 1 is pushed towards one end provided with the circular through hole 23 along the length direction of the long through hole 22, after the nut 1 reaches the inside of the circular through hole 23, the nut 1 can be taken out by pulling along the thickness direction of the part 2 to be installed, then the nut 1 is replaced by a new nut 1, the installation step is repeated, replacement of the nut 1 can be conveniently realized, and compared with the condition that once the nut fails, the nut needs to be scrapped or is difficult to replace in the prior art, the nut installation structure of the embodiment is convenient to install and replace and has low maintenance cost.
In the above embodiment, since the specific position of the nut 1 in the elongated through hole 22 can be changed (by changing the pushing distance of the nut 1 in the elongated through hole 22 when the bolt 4 is not tightened), that is, the relative position of the component 3 with respect to the component 2 to be mounted can be changed, in the case where the accuracy of the mounting position of the component 3 and the component 2 to be mounted is high, the nut mounting structure of the present embodiment can adjust the relative position of the component 3 and the component 2 to be mounted according to the specific situation, and thus the mounting adaptability is high, and the mounting accuracy is also good.
As a modification of the above embodiment, when the diameter of the through hole 31 of the component 3 is smaller than the outer diameter of the inner flange portion 12 of the nut 1, a counterbore capable of receiving the inner flange portion 12 may be provided in the surface of the component 3 opposite to the component 2 to be mounted, the counterbore being coaxial with the through hole 31. Or a counter bore capable of accommodating the inner flange portion 12 is provided on the surface of the component 2 to be mounted opposite to the component 3, the counter bore being coaxial with the threaded hole of the nut 1. Or a gasket is added between the component 2 to be mounted and the component 3, the thickness of the gasket is larger than or equal to that of the inner flange part 12, and the inner diameter of the gasket is larger than or equal to the outer diameter of the inner flange part 12.
Fig. 5 is a schematic structural diagram of another nut mounting structure according to a third embodiment of the present invention. The nut mounting structure in this embodiment can be applied to the nut 1 described in the first embodiment. As shown in fig. 5, the nut mounting structure of the present embodiment includes a nut 1, a to-be-mounted component 2 that is fitted to the nut 1, and a component 3 that is to be connected to the to-be-mounted component 2, the to-be-mounted component 2 includes a mounting seat 27 and a long groove member 28, the long groove member 28 may be fixed to the mounting seat 27 by welding, a notch of the long groove member 28 has an inwardly-folded edge 29, the nut 1 is fixed to the long groove member 28, and the notch edge 29 of the long groove member 28 is held in an anti-rotation positioning groove 13 of the nut 1, that is, the notch edge 29 of the long groove member 28 is a portion for fitting to the nut 1. Wherein, the thickness of the notch edge 29 of the long trough member 28 is equal to the distance between the outer flange part 11 and the inner flange part 12 of the nut 1, or the thickness of the notch edge 29 of the long trough member 28 is smaller than the distance between the outer flange part 11 and the inner flange part 12 of the nut 1; and both mounting surfaces 211 of the notch edge 29 in the thickness direction of the member to be mounted 2 are in contact with both rotation preventing surfaces 15 during mounting of the nut 1, specifically, the interval between both mounting surfaces 211 of the notch edge 29 in the thickness direction of the member to be mounted 2 is equal to the interval between both rotation preventing surfaces 15, or the interval between both mounting surfaces 211 of the notch edge 29 in the thickness direction of the member to be mounted 2 is slightly larger than the interval between both rotation preventing surfaces 15, and the interval between both mounting surfaces 211 of the notch edge 29 in the thickness direction of the member to be mounted 2 is smaller than the outer diameter dimensions of the outer flange portion 11 and the inner flange portion 12. The component 3 is further provided with a through hole 31 through which the bolt 4 passes, and the inner diameter of the through hole 31 is larger than the outer diameter of the inner flange portion 12.
Next, the mounting process of the nut mounting structure will be described by taking the nut 1 in which the outer edges of the outer flange 11 and the inner flange 12 are both arc-shaped as an example.
First, in a state where the rotation preventing surfaces 15 in the rotation preventing positioning grooves 13 of the nut 1 are parallel to the two mounting surfaces 211 of the notch edge 29, respectively, and the inner flange portion 12 faces the component 3 side, the nut 1 is pushed into the notch from the end portion of the long groove 28 in the longitudinal direction of the long groove 28, and even if the rotation preventing surfaces 15 slide relative to the two mounting surfaces 211 of the notch edge 29, since the distance between the two mounting surfaces 211 is smaller than the outer diameter of the inner flange portion 12, the nut 1 does not fall into the long groove 28, and stops after the nut 1 is pushed a certain distance in the longitudinal direction of the long groove 28, for example, reaches the middle position in the longitudinal direction of the long groove 28. As shown in fig. 5, since the thickness of the notch edge 29 of the slot member 28 is smaller than the distance between the outer flange portion 11 and the inner flange portion 12 of the nut 1, when the bolt 4 is tightened, the surface of the component 3 close to the slot member 28 is in close contact with the front surface side of the slot member 28, that is, the surface 213 on the front surface side, and the outer flange portion 11 of the nut 1 is engaged with the back surface side of the slot member 28 and is in close contact with the surface 212 on the back surface side (if the thickness of the notch edge 29 of the slot member 28 is equal to the distance between the outer flange portion 11 and the inner flange portion 12 of the nut 1, the inner flange portion 12 is also engaged with the front surface side of the slot member 28 and is in close contact with the surface 213 on the front surface side), at this time, since the slot member 28 is fixed to the mount base 27, the movement of the nut 1 relative to the slot member 28 (mount base 27) in the thickness direction of the slot member; since the distance between the two mounting surfaces 211 of the notch edge 29 in the thickness direction of the member 2 to be mounted is larger than the distance between the two rotation preventing surfaces 15, thus, after the nut 1 is rotated by a certain angle, the two rotation-preventing surfaces 15 are respectively clamped with the two mounting surfaces 211 of the notch edge 29, or the spacing between the two mounting surfaces 211 is equal to the spacing between the two anti-rotation surfaces 15, when the nut 1 is not rotated by a certain angle, the two rotation-preventing surfaces 15 respectively abut against the two mounting surfaces 211 of the notch edge 29, and at this time, the rotation of the nut 1 with respect to the long groove member 28 (the mount 27) is restricted, and in conclusion, the movement of the nut 1 with respect to the long groove member 28 (the mount 27) in the thickness direction of the long groove member 28 (the mount 27) is restricted, while being unable to rotate relative to the long channel member 28 (the mount 27), the nut 1 is temporarily fixed to the long channel member 28 (the mount 27). At this time, the component 3 is placed on the long groove member 28, and care should be taken to mount the through hole 31 of the component 3 in alignment with the inner flange portion 12 so that the flange portion 12 can be just received in the through hole 31, which enables the component 3 and the long groove member 28 to be closely attached without a gap. And then, sleeving the gasket on the bolt 4, sequentially penetrating the bolt 4 sleeved with the gasket through the through hole 31 on the zero component 3 and the screw hole arranged on the nut 1, and screwing the bolt 4 on one side of the zero component 3 by using a spanner to complete installation.
When nut 1 takes place to slide or other unable circumstances, at first take off bolt 4 with the spanner, then take off spare part 3, at this moment, with nut 1 along the length direction propelling movement of long recess 28 to the tip of long recess 28 just can take out nut 1, then the nut 1 of renewal is repeated above installation step just can conveniently realize nut 1's change, compare with in the prior art in case the nut trouble just must scrap or change the condition of difficulty, the utility model discloses a nut and nut mounting structure is convenient for install change and maintenance cost low.
In the above embodiment, since the specific position of the nut 1 in the notch of the long groove member 28 can be changed (by changing the pushing distance of the nut 1 in the notch when the bolt 4 is not tightened), that is, the relative position of the component 3 with respect to the long groove member 28 (the mount 27) can be changed, in the case where the requirement for the accuracy of the mounting position of the component 3 and the mount 27 is high, the nut mounting structure of the present embodiment can adjust the relative position of the component 3 and the mount 27 according to the specific situation, and thus the mounting adaptability is high, and the mounting accuracy is also good.
As a modification of the above embodiment, when the diameter of the through hole 31 of the component is smaller than the diameter of the inner flange portion 12 of the nut 1, a counter bore capable of accommodating the inner flange portion 12 may be provided in the surface of the component 3 opposite to the long groove member 28, the counter bore being coaxial with the through hole 31. Or a spacer is added between the long groove member 28 and the component 3 such that the thickness of the spacer is greater than or equal to the thickness of the inner flange portion 12 and the inner diameter of the spacer is greater than or equal to the outer diameter of the inner flange portion 12. Furthermore, the slot member 28 may be fixed to the mounting seat 27 by other means, such as a dowel pin or a screw. Such a conversion falls within the scope of protection of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In addition, in the present invention, unless otherwise explicitly specified or limited, the terms "connected," "fixed," "mounted," and the like are to be construed broadly, e.g., as mechanical or electrical connections; the term "connected" refers to a direct connection or an indirect connection through an intermediate medium, and refers to a connection between two elements or an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the terms in the present invention is understood by those skilled in the art according to specific situations.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A nut is characterized in that an outer flange portion protruding outwards in the radial direction of the nut is arranged at one end in the thickness direction of the nut, an inner flange portion protruding outwards in the radial direction of the nut is arranged at the other end in the thickness direction of the nut, and an anti-rotation positioning groove used for being matched with a component to be installed and limiting the nut to rotate relative to the component to be installed is formed between the outer flange portion and the inner flange portion.
2. The nut of claim 1 wherein said anti-rotation detents have a groove bottom parallel to the thickness direction of said nut, said groove bottom forming an anti-rotation face for mating with said component to be installed.
3. The nut according to claim 2, wherein said outer flange portion includes a first flange portion and a second flange portion which are disposed opposite to each other with respect to a center of said nut, said inner flange portion includes a third flange portion and a fourth flange portion which are disposed opposite to each other with respect to the center of said nut, said first flange portion and said third flange portion are both located in the same direction with respect to a circumferential direction of said nut, and said second flange portion and said fourth flange portion are both located in the same direction with respect to the circumferential direction of said nut, so that said rotation preventing grooves are formed between said first flange portion and said third flange portion, and between said second flange portion and said fourth flange portion, respectively.
4. The nut as defined in claim 3, wherein outer edges of said outer flange portion and said inner flange portion are each in the shape of a circular arc.
5. The nut as claimed in claim 4, wherein an outer diameter of said inner flange portion is smaller than an outer diameter of said outer flange portion, and a boss protruding toward said inner flange portion is provided between said first flange portion and said second flange portion.
6. The nut of claim 5 wherein the height of the boss is less than the spacing between the outer flange portion and the inner flange portion.
7. A nut mounting structure, comprising: the nut according to any one of claims 1 to 6, a member to be mounted to be fitted to the nut, and a component to be connected to the member to be mounted, wherein a mounting hole penetrating through a thickness direction of the member to be mounted is formed in the member to be mounted, the mounting hole includes an elongated through hole having a diameter larger than a maximum dimension of an outer edge of the outer flange portion and a circular through hole located at one end of the elongated through hole and communicating with the elongated through hole, the elongated through hole is a portion for fitting to the nut, and an edge of a hole wall of the elongated through hole is held in the rotation preventing positioning groove.
8. The nut mounting structure according to claim 7, wherein a hole diameter through which a bolt passes on the component is larger than or equal to a maximum dimension of an outer edge of the inner flange portion; or,
and a counter bore capable of accommodating the inner flange part is arranged on the surface of the part opposite to the part to be mounted, and the counter bore is coaxial with a hole on the part for the bolt to pass through.
9. A nut mounting structure, comprising: the nut according to any one of claims 1 to 6, a member to be mounted which is fitted to the nut, and a component to be connected to the member to be mounted, the member to be mounted comprising a long channel member, the slot of which has an inwardly-folded edge, the nut being fixed to the long channel member, and the edge of the slot of the long channel member being held in an anti-rotation positioning groove of the nut.
10. The nut mounting structure according to claim 9, wherein a hole diameter through which a bolt passes on the component is larger than or equal to a maximum dimension of an outer edge of the inner flange portion; or,
and a counter bore capable of accommodating the inner flange part is arranged on the surface of the part opposite to the part to be mounted, and the counter bore is coaxial with a hole for a bolt to pass through on the part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821214579.1U CN208619499U (en) | 2018-07-27 | 2018-07-27 | Nut and nut mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821214579.1U CN208619499U (en) | 2018-07-27 | 2018-07-27 | Nut and nut mounting structure |
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| CN208619499U true CN208619499U (en) | 2019-03-19 |
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|---|---|---|---|
| CN201821214579.1U Active CN208619499U (en) | 2018-07-27 | 2018-07-27 | Nut and nut mounting structure |
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| CN (1) | CN208619499U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335315A (en) * | 2021-06-25 | 2021-09-03 | 中车唐山机车车辆有限公司 | Integrated equipment cabinet and rail vehicle |
| CN115575749A (en) * | 2022-10-13 | 2023-01-06 | 陈莉 | Line loss detection system and detection method for electric power meter |
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2018
- 2018-07-27 CN CN201821214579.1U patent/CN208619499U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335315A (en) * | 2021-06-25 | 2021-09-03 | 中车唐山机车车辆有限公司 | Integrated equipment cabinet and rail vehicle |
| CN115575749A (en) * | 2022-10-13 | 2023-01-06 | 陈莉 | Line loss detection system and detection method for electric power meter |
| CN115575749B (en) * | 2022-10-13 | 2023-08-15 | 杭州绿掌科技有限公司 | Power ammeter line loss detection system and detection method |
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Effective date of registration: 20201130 Address after: No.1030 Xingxiu Road, Yuban village, Dongyuan Town, Quanzhou City, Fujian Province Patentee after: QUANZHOU CRRC TANGCHE RAIL VEHICLE Co.,Ltd. Patentee after: CRRC TANGSHAN Co.,Ltd. Address before: 063035 No. 3, front road, Fengrun District, Hebei, Tangshan City Patentee before: CRRC TANGSHAN Co.,Ltd. |
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