CN215444728U - Anti-loosening bolt with thread blocking type function - Google Patents
Anti-loosening bolt with thread blocking type function Download PDFInfo
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- CN215444728U CN215444728U CN202121286363.8U CN202121286363U CN215444728U CN 215444728 U CN215444728 U CN 215444728U CN 202121286363 U CN202121286363 U CN 202121286363U CN 215444728 U CN215444728 U CN 215444728U
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Abstract
The utility model provides a screw thread blocks anti-loosening bolt of formula, includes the screw rod, the nut is installed in the cooperation on the screw rod, be equipped with the screw rod draw-in groove along the screw rod axial on the screw rod, the degree of depth of screw rod draw-in groove is greater than the height of screw rod screw thread, and the length of screw rod draw-in groove is the same with the length of screw rod, be equipped with the nut draw-in groove corresponding with the screw rod draw-in groove along the screw rod axial on the medial surface of nut, the degree of depth of nut draw-in groove is greater than the internal threaded height of nut, be equipped with logical groove on the terminal surface of nut, the one end that leads to the groove links to each other with the one end of nut draw-in groove, the nut draw-in groove constitutes the card hole with corresponding screw rod draw-in groove combination, install the fastener in the card hole, the fastener includes the kelly, and the one end of kelly is connected with "U" type jump ring, "U" type jump ring is fixed at logical inslot. The clamping rod is inserted into the clamping hole at the connection part of the screw rod and the thread of the nut to cut off the advance and retreat of the nut, so that the nut is not loosened, and the fixing hole for fixing the clamping piece is arranged on the outer surface of the nut, so that the clamping piece is convenient to mount.
Description
Technical Field
The utility model relates to a thread blocking type anti-loosening bolt.
Background
At present, the bolt is very widely applied, especially in the field of mechanical fixing, the bolt is a common fastening assembly, and the bolt is also commonly used in various fields of daily life and industry, and in the use process of the common bolt, after the bolt is fixed, the bolt is loosened frequently along with the lapse of time or the high-frequency vibration of mechanical equipment, so that a plurality of problems are brought to the normal use of the bolt, and the safety of the working and running of the mechanical equipment is reduced.
However, in the anti-loosening bolt disclosed in chinese patent No. CN210660993U, the length of the insertion rod must not be smaller than the distance between the nut and the top of the bolt after the bolt is fixed, but the insertion rod is too long and is not practical in practical use, and because the length of the insertion rod needs to be changed or matched in the bolt installation process, the bolt is not convenient to install; and the afterbody of inserted bar is equipped with the handle of installing on support piece, and the recess on support piece is installed to the one end of handle, and this characteristic has the limitation in the in-service use, for guaranteeing to form certain angle between inserted bar and the screw rod and reach the purpose of blocking the nut, needs a specific proportion of the length of handle and the length of chuck bar to the one end of handle clamps on support piece, under high frequency vibrations, has the condition that the handle is easily loosened and is come off and take place.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a thread-blocking type anti-loosening bolt, so as to solve the above problems in the background art.
The technical scheme who takes for realizing above-mentioned purpose is, a screw thread blocks anti-loosening bolt of formula, including the screw rod, the nut is installed in the cooperation on the screw rod, be equipped with the screw rod draw-in groove along the screw rod axial on the screw rod, the degree of depth of screw rod draw-in groove is greater than the height of screw rod screw thread, and the length of screw rod draw-in groove is the same with the length of screw rod, be equipped with the nut draw-in groove corresponding with the screw rod draw-in groove along the screw rod axial on the medial surface of nut, the degree of depth of nut draw-in groove is greater than the internal threaded height of nut, be equipped with logical groove on the terminal surface of nut, the one end that leads to the groove links to each other with the one end of nut draw-in groove, the nut draw-in groove constitutes the card hole with corresponding screw rod draw-in groove combination, install the fastener in the card hole, the fastener includes the kelly, and the one end of kelly is connected with "U" type jump ring, "U" jump ring is fixed at logical inslot.
Furthermore, the outer side surface of the nut is provided with a fixing hole, and one end of the U-shaped clamp spring is fixed in the fixing hole.
Furthermore, the cross sections of the screw rod clamping groove and the nut clamping groove are of circular, oval or polygonal structures.
Further, the section of the clamping rod is of a circular, oval or polygonal structure, and the clamping rod and the U-shaped clamping spring are of an integrally formed structure.
Furthermore, a plurality of screw clamping grooves are formed in the screw, and a plurality of nut clamping grooves matched with the screw clamping grooves are formed in the inner side of the nut.
Further, the clamping piece is made of metal materials.
Furthermore, the U-shaped clamp spring is provided with a dismounting hole at one end connected with the through groove.
Furthermore, a through hole for fixing the clamping piece is arranged on the screw rod.
Advantageous effects
Compared with the prior art, the utility model has the following advantages.
The clamp has the advantages that the clamp and the nut are fixed through the U-shaped clamp spring, the clamping rod can be firmly and difficultly fall off in the clamping hole, the length of the clamping rod does not need to be adjusted according to different thicknesses of the clamp, the clamp can be universally used for mounting and fixing clamps with various thicknesses, and the clamp has the characteristics of safety and convenience in fixing and use.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the structure of the present invention;
FIG. 3 is a schematic structural view of the card member of the present invention;
FIG. 4 is a schematic view of the nut of the present invention;
FIG. 5 is a top view of the nut of the present invention;
FIG. 6 is a schematic view of a screw with a through hole according to the present invention;
FIG. 7 is a schematic structural view of the outer side surface of the nut of the present invention with a fixing hole;
FIG. 8 is a schematic structural view of the U-shaped clamp spring of the present invention with one end fixed in the fixing hole;
Detailed Description
The utility model is further described with reference to the following examples and the accompanying drawings.
A threaded blocking type anti-loosening bolt is shown in figures 1-5 and comprises a screw rod 1, a nut 2 is arranged on the screw rod 1 in a matching mode, a screw rod clamping groove 4 is arranged on the screw rod 1 along the axial direction of the screw rod, the depth of the screw rod clamping groove 4 is greater than the height of the screw thread, the length of the screw rod clamping groove 4 is the same as that of the screw rod 1, a nut clamping groove 6 corresponding to the screw rod clamping groove 4 is arranged on the inner side surface of the nut 2 along the axial direction of the screw rod, the depth of the nut clamping groove 6 is greater than the height of the internal thread of the nut, a through groove 8 is arranged on the end surface of the nut 2, one end of the through groove 8 is connected with one end of the nut clamping groove 6, the nut clamping grooves 6 and the corresponding screw rod clamping grooves 4 are combined to form clamping holes 7, clamping pieces 3 are arranged in the clamping holes 7, the clamping piece 3 comprises a clamping rod 31, one end of the clamping rod 31 is connected with a U-shaped clamp spring 32, and one end of the U-shaped clamp spring 32 is fixed in the through groove 8.
The outer side surface of the nut 2 is provided with a fixing hole 5, and one end of the U-shaped clamp spring 32 is fixed to the fixing hole 5.
The sections of the screw clamping groove 4 and the nut clamping groove 6 are circular, oval or polygonal structures.
The section of the clamping rod 31 is of a circular, oval or polygonal structure, and the clamping rod 31 and the U-shaped clamp spring 32 are of an integrally formed structure.
The screw rod 1 is provided with a plurality of screw rod clamping grooves 4, and the inner side of the nut 2 is provided with a plurality of nut clamping grooves 6 matched with the screw rod clamping grooves 4.
The clamping piece 3 is made of metal materials.
And a dismounting hole 33 is formed at one end of the U-shaped clamp spring 32 connected with the through groove 8.
The screw rod 1 is provided with a through hole 11 for fixing the clamping piece 3.
As shown in fig. 6, the screw rod 1 is provided with at least one through hole 11 for fixing one end of the U-shaped clamp spring 32, and after the clamping rod 31 is inserted into the clamping hole 7, one end of the U-shaped clamp spring 32 can be clamped into the through hole 11, so that the clamping member 3 is not easy to fall off after being clamped.
In the utility model, the end surface of the nut 2 is provided with a through groove 8, and one end of the through groove 8 is connected with one end of a nut clamping groove 6; one end of the U-shaped clamp spring 32 is connected with the clamp rod 31, the other end of the U-shaped clamp spring 32 is clamped in the through groove 8, a square through groove 8 is formed in the end face of the nut 2 corresponding to the nut clamping groove 6, after the nut 2 is grooved, when the nut 2 is used, the through groove 8 at one end of the nut 2 is downwards opened, a mounting hole at the tail end of the clip spring is formed by the through groove 8 and a gasket, and at the moment, the tail end of the U-shaped clamp spring 32 can be clamped in the mounting hole; when the opening of the through groove 8 at one end of the nut 2 is upward, the clamping piece 3 can be of an L-shaped structure, and a nut is additionally arranged above the clamping piece to press the top of the clamping piece to be in the through groove, so that the clamping piece of the L-shaped structure cannot fall off.
In the utility model, when one end of the U-shaped clamp spring 32 is fixed in the fixing hole 5, as shown in fig. 7 and 8, the screw 1 is provided with a screw clamping groove 4 for installing the clamping piece 3 from top to bottom in a thread pattern, the screw clamping groove 4 is provided before the screw 1 is subjected to thread rolling and hot processing, thread rolling is carried out after the screw clamping groove 4 is provided, the depth of the screw clamping groove 4 is not too deep so as not to influence the strength of a bolt, but is not lower than the depth of a thread on the final screw at least; when in use, a screw clamping groove 4 formed in the screw 1 is overlapped with a nut clamping groove 6 formed in the nut 2 to form a clamping hole 7 for installing the clamping piece 3, a clamping rod 31 on the clamping piece 3 is inserted into the clamping hole 7, and the other end of a U-shaped clamping spring 32 connected with the clamping piece 3 crosses the outer wall of the nut 2 and is inserted into a fixing hole 5 which is milled in advance; after the clamping rod 31 is installed after the bolt is used, because the nut 2 only retracts and becomes loose and cannot enter the screw more and more tightly under the condition that the nut 2 is not manually intervened, the threads of the clamping rod 31 can be relatively moved and bitten in the screw clamping groove 4 and the nut clamping groove 6 due to the fact that the threads of the nut 2 and the screw 1 are loosened, and the clamping rod is more and more tightly bitten; the U-shaped clamp spring 32 is installed in a fixing hole 5 milled in advance on the nut 2 by utilizing the elastic memory repairing function of the clamp spring, so that the whole clamping piece 3 cannot fall out due to high-frequency vibration, and the clamping piece 3 can further play a role in preventing the bolt from loosening in the installation of the whole part.
The clamping piece 3 is formed by stainless steel punching, after the clamping rod 31 is inserted into the clamping hole 7 and enters about half of the clamping hole, one end of the U-shaped clamp spring 32 can meet the side wall of the nut 2 to block the front, an installer only needs to use an installation wrench or any hard object to knock the top of the U-shaped clamp spring 32, and one end of the U-shaped clamp spring 32 can enable the arc to slide outwards due to impact force, so that the U-shaped clamp spring is opened. The impact force can make one end of the U-shaped clamp spring 32 slide across the side wall of the nut 2 until the end is clamped into the reserved fixing hole 5 on the nut 2, the dismounting hole 33 is designed to be reserved for sharp nose pliers or a special dismounting tool when the U-shaped clamp spring 32 is dismounted, and the one end of the U-shaped clamp spring 32 is clamped in the fixing hole 5 during dismounting, so that the hand is difficult to release steeply, and therefore the tool is required to be embedded into the dismounting hole 33 to dismount one end of the U-shaped clamp spring 32 from the fixing hole 5.
When the clamping device is used, the nut 2 is sleeved on the screw rod 1, after the clamping device is fixed, one screw rod clamping groove 4 on the screw rod 1 and one nut clamping groove 6 on the nut are aligned to form a clamping hole 7, then the clamping rod 31 on the clamping piece 3 is partially inserted into the clamping hole 7, one end of the U-shaped clamping spring 32 on the clamping piece is clamped into the fixing hole 5, and the clamping piece 3 is not easy to fall off after being fixed.
Claims (8)
1. The screw thread blocking type anti-loosening bolt comprises a screw rod (1), a nut (2) is installed on the screw rod (1) in a matched mode, a screw rod clamping groove (4) is formed in the screw rod (1) in the axial direction of the screw rod, the depth of the screw rod clamping groove (4) is larger than the height of the screw thread, the length of the screw rod clamping groove (4) is the same as that of the screw rod (1), a nut clamping groove (6) corresponding to the screw rod clamping groove (4) is formed in the inner side face of the nut (2) in the axial direction of the screw rod, the depth of the nut clamping groove (6) is larger than the height of the internal thread of the nut, the anti-loosening bolt is characterized in that a through groove (8) is formed in the end face of the nut (2), one end of the through groove (8) is connected with one end of the nut clamping groove (6), the nut clamping groove (6) and the corresponding screw rod clamping groove (4) are combined to form a clamping hole (7), and a clamping piece (3) is installed in the clamping hole (7), the clamping piece (3) comprises a clamping rod (31), one end of the clamping rod (31) is connected with a U-shaped clamp spring (32), and one end of the U-shaped clamp spring (32) is fixed in the through groove (8).
2. The threaded blocking type anti-loosening bolt according to claim 1, wherein the outer surface of the nut (2) is provided with a fixing hole (5), and one end of the U-shaped clamp spring (32) is fixed on the fixing hole (5).
3. The threaded blocking type anti-loosening bolt according to claim 1, wherein the cross sections of the screw rod clamping groove (4) and the nut clamping groove (6) are circular, oval or polygonal structures.
4. The threaded blocking type anti-loosening bolt according to claim 1, wherein the cross section of the clamping rod (31) is a circular, oval or polygonal structure, and the clamping rod (31) and the U-shaped clamp spring (32) are of an integral structure.
5. The threaded blocking type anti-loosening bolt according to claim 1, wherein a plurality of screw locking grooves (4) are formed in the screw (1), and a plurality of nut locking grooves (6) matched with the screw locking grooves (4) are formed in the inner side of the nut (2).
6. The threaded blocking type anti-loosening bolt according to claim 1, wherein the clamping piece (3) is made of a metal material.
7. The threaded blocking type anti-loosening bolt according to claim 1, wherein the U-shaped clamp spring (32) is provided with a detaching hole (33) at one end connected with the through slot (8).
8. The threaded blocking type anti-loosening bolt according to claim 1, wherein the threaded rod (1) is provided with a through hole (11) for fixing the clamping piece (3).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121086152 | 2021-05-20 | ||
| CN202121086152X | 2021-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215444728U true CN215444728U (en) | 2022-01-07 |
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ID=79710731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121286363.8U Active CN215444728U (en) | 2021-05-20 | 2021-06-09 | Anti-loosening bolt with thread blocking type function |
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| Country | Link |
|---|---|
| CN (1) | CN215444728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117685282A (en) * | 2024-02-04 | 2024-03-12 | 成都鑫晨航空科技有限公司 | Aviation anti-loosening bolt based on memory alloy and fastening method |
-
2021
- 2021-06-09 CN CN202121286363.8U patent/CN215444728U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117685282A (en) * | 2024-02-04 | 2024-03-12 | 成都鑫晨航空科技有限公司 | Aviation anti-loosening bolt based on memory alloy and fastening method |
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