CN218031015U - Bolt convenient to disassemble and assemble - Google Patents
Bolt convenient to disassemble and assemble Download PDFInfo
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- CN218031015U CN218031015U CN202222495263.7U CN202222495263U CN218031015U CN 218031015 U CN218031015 U CN 218031015U CN 202222495263 U CN202222495263 U CN 202222495263U CN 218031015 U CN218031015 U CN 218031015U
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- hole
- wedge block
- stud
- voussoir
- threaded part
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Abstract
The utility model belongs to the technical field of threaded connection spare, concretely relates to bolt convenient to dismouting and application method thereof, including the double-screw bolt, the double-screw bolt includes the non-screw thread portion that has screw thread portion and rear end of front end, and flat pad and bullet pad overlap in proper order and locate the double-screw bolt have screw thread portion on, nut threaded connection has the outermost end of screw thread portion. The non-threaded part of the stud is provided with a wedge block hole for installing a wedge block, the longitudinal section of the wedge block hole is a right trapezoid with a wide upper part and a narrow lower part, and one side, away from the threaded part, of the cross section of the wedge block hole is in a semi-circular arc shape. The wedge block is matched with the shape of the wedge block hole. The utility model discloses a slope of bolt voussoir is about 5, can realize the auto-lock. The inclined plane adopts a semi-circular arc shape, so that stress concentration is eliminated. The fastening mode that the wedge block is knocked by the hand hammer is adopted, so that the device is time-saving and labor-saving, simple to manufacture, low in machining precision requirement and low in cost, is particularly suitable for fixing an access hole or an access door which is not high in anti-loosening requirement and frequent in disassembly and assembly, and improves the operation efficiency.
Description
Technical Field
The utility model belongs to the technical field of threaded connection spare, concretely relates to bolt convenient to dismouting.
Background
In order to accurately master the equipment condition, an observation hole or an access door is usually arranged on the equipment and used for checking the running condition of internal equipment, a plurality of current observation holes or access doors use the traditional bolt and nut fastening mode, a wrench is needed to rotate a nut to disassemble and assemble a bolt when the bolt is opened or closed, and the working efficiency is low. Because the fastening and anti-loosening requirements of the observation hole or the access door are not very high, in order to reduce the labor intensity of workers and improve the operation productivity, a bolt is developed and used for simplifying complicated procedures.
Disclosure of Invention
An object of the utility model is to provide a bolt of dismouting of being convenient for that can fasten through the hand hammer strikes the voussoir, labour saving and time saving, the operating efficiency is high.
The utility model provides a technical scheme that its technical problem adopted is: a bolt convenient for disassembly and assembly comprises a stud, and a wedge block, a nut, an elastic pad and a flat pad which are matched with the stud; the stud comprises a threaded part at the front end and a non-threaded part at the rear end, the flat pad and the elastic pad are sequentially sleeved on the threaded part of the stud, and the nut is in threaded connection with the outermost end of the threaded part. The non-thread portion of double-screw bolt is equipped with the voussoir hole that is used for installing the voussoir, and the longitudinal section in wedge hole is narrow right trapezoid about wide, and the top in wedge hole is the hole long limit, and the bottom in wedge hole is Kong Duanbian, and the wedge hole is close to the double-screw bolt and has one side of screw thread portion for hole right angle limit, and the wedge hole is kept away from one side that has screw thread portion and is the hole bevel edge, and the cross section in wedge hole is kept away from one side that has screw thread portion and is semi-circular arc. The shape of voussoir and wedge hole suits, and one side of voussoir is the voussoir hypotenuse, and the inclination of voussoir hypotenuse is the same with the inclination of hole hypotenuse, and the top of voussoir is the voussoir long limit, and the bottom of voussoir is the voussoir minor face, and the length on voussoir long limit is greater than the length on hole long limit, and the length on voussoir minor face is less than the length on hole minor face.
Further, the slope of Kong Xiebian is less than 1.
Further, the width of the wedge block hole is one fourth of the diameter of the stud.
Further, the distance between the Kong Zhijiao edge of the wedge block hole and the thread of the threaded part of the stud is less than 5mm.
Furthermore, the threaded part and the unthreaded part of the stud are integrally molded, and the outer diameters of the threaded part and the unthreaded part of the stud are the same.
The utility model discloses following beneficial effect has: the utility model discloses a slope of bolt voussoir is about 5, can realize the auto-lock. The inclined plane adopts a semi-circular arc shape, so that stress concentration is eliminated. The fastening mode that the wedge block is knocked by a hand hammer is adopted to replace the fastening mode that a bolt is rotated by a wrench, so that the time and labor are saved, the manufacturing is simple, the machining precision requirement is low, and the cost is low. The device is particularly suitable for fixing the access hole or the access door which has low anti-loosening requirement and frequent disassembly and assembly, greatly shortens the operation time and improves the operation efficiency.
Drawings
Fig. 1 is a schematic view of the overall structure of the bolt of the present invention.
Fig. 2 is a three-dimensional schematic diagram of the assembled bolt of the present invention.
Fig. 3 is a cross-sectional view of the stud of the present invention.
Fig. 4 is a front view of the wedge of the present invention.
In the figure, 1, a stud, 2, a wedge block, 3, a nut, 4, an elastic pad, 5, a flat pad, 6, a wedge block hole, 7, a hole right-angle side, 8, a wedge block long side, 9, a wedge block short side, 10, a hole long side, 11, kong Duanbian, 12, a hole oblique side, 13 and a wedge block oblique side.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described, but the scope of the present invention is not limited to these embodiments. All changes and equivalents that do not depart from the spirit and scope of the invention are intended to be included within the scope of the invention.
As shown in fig. 1 and 2, a bolt convenient for disassembly and assembly comprises a stud 1, a wedge 2 matched with the stud 1, a nut 3, an elastic cushion 4 and a flat cushion 5; the stud 1 comprises a threaded part b at the front end and a non-threaded part a at the rear end, the threaded part and the non-threaded part of the stud 1 are integrally formed, and the outer diameters of the threaded part and the non-threaded part of the stud 1 are the same. The flat pad 5 and the elastic pad 4 are sequentially sleeved on the threaded part of the stud 1, and the nut 3 is in threaded connection with the outermost end of the threaded part.
The non-threaded part of the stud 1 is provided with a wedge hole 6 for mounting the wedge 2, and the width of the wedge hole 6 is one fourth of the diameter d of the stud 1. As shown in fig. 3, the longitudinal section of the wedge hole 6 is a right trapezoid with a wide top and a narrow bottom, the top of the wedge hole 6 is a long hole edge 10, the bottom of the wedge hole 6 is a short hole edge 11, one side of the wedge hole 6, which is close to the threaded portion of the stud 1, is a right-angle hole edge 7, and the distance h from the right-angle hole edge 7 of the wedge hole 6 to the threaded portion of the stud 1 is less than 5mm. The side of the wedge block hole far away from the threaded part is a hole bevel edge 12, and the side of the cross section of the wedge block hole 6 far away from the threaded part is a semi-circular arc.
The shape of the wedge block 2 is matched with that of the wedge block hole 6, and the inclined plane A of the wedge block 2 is in a semi-circular arc shape, so that stress concentration is eliminated. As shown in fig. 4, one side of the wedge 2 is a wedge oblique side 13, the inclination of the wedge oblique side 13 is the same as that of the hole oblique side 12, the inclination of the hole oblique side 12 is less than 1 and is about 5 degrees, and self-locking can be realized. The top of the wedge block 2 is a long wedge block edge 8, the bottom of the wedge block 2 is a short wedge block edge 9, the length g of the long wedge block edge 8 is greater than the length s of the long hole edge 10, and the length of the short wedge block edge 9 is less than the length of the short hole edge 11.
The use method of the bolt convenient to disassemble and assemble comprises the following steps:
1) The stud 1 penetrates through a bolt hole of an access hole to be tightened, a threaded part of the stud 1 is positioned on one side of equipment, and a long edge 10 of a hole of a wedge block hole 6 is positioned above;
2) A flat pad 5, an elastic pad 4 and a nut 3 are sequentially arranged on a threaded part of the stud 1, and the nut 3 is rotated to adjust a right-angle edge 7 of a wedge block hole 6 to be positioned in a screw hole of equipment to be fastened;
3) Inserting a short edge 9 of the wedge block 2 from a long edge 10 of a wedge block hole, knocking a long edge 8 of the wedge block 2 by a hand hammer until the inspection hole needing to be fastened is sealed, and finishing installation, as shown in fig. 2;
4) When in disassembly, the short edge 9 of the wedge block 2 is knocked by a hammer in the opposite direction, so that the wedge block 2 is separated from the wedge block hole 6, and then the stud 1, the nut 3, the elastic pad 4 and the flat pad 5 are taken down.
The utility model discloses a bolt is particularly useful for the not high and more access hole of dismouting frequency of locking requirement or the fixed of access door, only strikes with the hammer and can accomplish bolt dismouting process, has shortened the activity duration of this process by a wide margin.
The utility model discloses not be limited to above-mentioned embodiment, anybody should learn the structural change who makes under the teaching of the utility model, all with the utility model discloses have the same or close technical scheme, all fall into the utility model discloses an within the protection scope.
The technology, shape and construction parts which are not described in detail in the present invention are all known technology.
Claims (5)
1. A bolt convenient to disassemble and assemble is characterized by comprising a stud, and a wedge block, a nut, an elastic pad and a flat pad which are matched with the stud;
the stud comprises a threaded part at the front end and a non-threaded part at the rear end, the flat pad and the elastic pad are sequentially sleeved on the threaded part of the stud, and the nut is in threaded connection with the outermost end of the threaded part;
the non-threaded part of the stud is provided with a wedge block hole for installing a wedge block, the longitudinal section of the wedge block hole is a right trapezoid with a wide top and a narrow bottom, the top of the wedge block hole is a hole long side, the bottom of the wedge block hole is Kong Duanbian, one side, close to the threaded part of the stud, of the wedge block hole is a hole right-angle side, one side, far away from the threaded part, of the wedge block hole is a hole oblique side, and one side, far away from the threaded part, of the cross section of the wedge block hole is in a semi-circular arc shape;
the shape of voussoir and wedge hole suits, and one side of voussoir is the voussoir hypotenuse, and the inclination of voussoir hypotenuse is the same with the inclination of hole hypotenuse, and the top of voussoir is the voussoir long limit, and the bottom of voussoir is the voussoir minor face, and the length on voussoir long limit is greater than the length on hole long limit, and the length on voussoir minor face is less than the length on hole minor face.
2. The easy-to-disassemble bolt of claim 1 wherein the inclination of Kong Xiebian is less than 1.
3. The easy-to-dismount bolt according to claim 1, wherein the width of the wedge hole is one quarter of the diameter of the stud.
4. The easy-to-dismount bolt according to claim 1, wherein the distance between Kong Zhijiao side of the wedge hole and the thread of the threaded portion of the stud is less than 5mm.
5. The bolt of claim 1, wherein the threaded portion and the unthreaded portion of the stud are integrally formed, and the threaded portion and the unthreaded portion of the stud have the same outer diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222495263.7U CN218031015U (en) | 2022-09-20 | 2022-09-20 | Bolt convenient to disassemble and assemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222495263.7U CN218031015U (en) | 2022-09-20 | 2022-09-20 | Bolt convenient to disassemble and assemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218031015U true CN218031015U (en) | 2022-12-13 |
Family
ID=84354615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222495263.7U Active CN218031015U (en) | 2022-09-20 | 2022-09-20 | Bolt convenient to disassemble and assemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218031015U (en) |
-
2022
- 2022-09-20 CN CN202222495263.7U patent/CN218031015U/en active Active
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