CN216951226U - Detachable wedge-shaped anti-loosening structure of large-size thread and internal and external thread connecting piece - Google Patents
Detachable wedge-shaped anti-loosening structure of large-size thread and internal and external thread connecting piece Download PDFInfo
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- CN216951226U CN216951226U CN202122599907.2U CN202122599907U CN216951226U CN 216951226 U CN216951226 U CN 216951226U CN 202122599907 U CN202122599907 U CN 202122599907U CN 216951226 U CN216951226 U CN 216951226U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention relates to a detachable wedge-shaped anti-loosening structure of a large-size thread and an internal and external thread connecting piece. Including the shell that is provided with the cavity, pass the shell and stretch into the affiliated elasticity screw in stating the cavity, install in the cavity with the wedge elasticity piece of elasticity screw looks butt and set up in the soft wedge extrusion piece of wedge elasticity piece side, the wedge elasticity piece includes first slope and first perpendicular, soft wedge extrusion piece includes second slope and second perpendicular, first slope is the direct second slope of laminating, the laminating of the cavity inner wall of first perpendicular and shell, the second perpendicular is equipped with first boss, the shell includes an outward appearance plane, the outward appearance plane is provided with the opening that leads to with the cavity, first boss protrusion opening plane, a side of shell is equipped with the screw thread through-hole, the screw thread through-hole cooperatees with the elasticity screw. The beneficial effects are as follows: the locking ability is good, convenient operation, simple structure, and processing is convenient, and the security is high, easy dismounting, and can used repeatedly.
Description
Technical Field
The invention relates to the technical field of fasteners, in particular to a detachable wedge-shaped anti-loosening structure of a large-size thread and an internal and external thread connecting piece.
Background
The large-size threaded connection structure, the general case screw thread pitch is all great, and required locking pretightning force is also very big, often can cause because of factors such as the vibration of external force load not hard up, in the actual work, in order to guarantee performance such as connection structure's intensity, can not directly process the screw hole on lateral wall and terminal surface, and join in marriage and beat the screw hole technology more complicated, at present adopt mostly to beat moment or gummed mode locking. However, the size of the thread is large, so that the torque is limited by tools, structures and the like, the gluing mode cannot meet the dismounting requirement, the pretightening force and the safety of the connecting structure are adversely affected, and the good anti-loosening effect cannot be guaranteed.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a detachable wedge-shaped anti-loosening structure for large-size threads, the rotation of a tightening screw of the structure enables an extrusion block to be stressed to generate elastic deformation, so that the friction force between internal threads and external threads is increased, the anti-loosening capacity of the large-size threads can be effectively improved, the structure is convenient to operate, simple, convenient to machine, convenient to disassemble and assemble, high in safety, free of structural damage to the large-size threads, good in anti-loosening performance and capable of being reused, and the cost is reduced.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a detachable wedge-shaped anti-loosening structure of large-size threads comprises a shell provided with a cavity, an elastic screw penetrating through the shell and extending into the cavity, a wedge-shaped elastic block arranged in the cavity and abutted against the elastic screw, and a soft wedge-shaped extrusion block arranged on the side face of the wedge-shaped elastic block, the wedge-shaped elastic block comprises a first slope surface and a first vertical surface, the soft wedge-shaped extrusion block comprises a second slope surface and a second vertical surface, the first slope surface is directly jointed with the second slope surface, the first vertical surface is jointed with the inner wall of the cavity of the shell, the second vertical surface is provided with a first boss, the shell comprises an outer surface plane, the outer surface plane is provided with an opening communicated with the cavity, the first boss protrudes out of the opening plane, a threaded through hole is formed in one side face of the shell, and the threaded through hole is matched with the elastic screw.
Furthermore, one side surface of the shell, which is provided with the threaded through hole, is provided with a mounting lug.
Further, be provided with a plurality of installation through-holes on the installation journal stirrup, still include with the fastener that the installation through-hole cooperation was used.
Further, the wedge-shaped elastic block is made of copper, and the soft wedge-shaped extrusion block is an aluminum or copper wedge-shaped extrusion block.
Furthermore, the tail end of the elastic screw is circumferentially provided with a second boss, one end of the wedge-shaped elastic block, which is abutted against the elastic screw, is provided with a groove matched with the second boss, and the wedge-shaped elastic block is connected with the elastic screw in a clamping groove structure.
Further, the wedge-shaped elastic block and the soft wedge-shaped extrusion block are in flexible contact.
Further, the cross section of the soft wedge-shaped extrusion block is rectangular or square.
Furthermore, the large-size internal and external thread connecting piece with the detachable wedge-shaped anti-loose structure is connected with the large-size internal thread, the detachable wedge-shaped anti-loose structure with the large-size thread is arranged between the large-size external thread and the large-size internal thread and is fixed on the end face of the large-size internal thread piece, and the end face of the large-size internal thread piece is provided with a mounting hole matched with the large-size internal and external thread connecting piece with the detachable wedge-shaped anti-loose structure for mounting.
Compared with the prior art, the invention has the advantages that:
1. the anti-loosening capability is good, the operation is convenient, the structure is simple, the processing is convenient, and the safety is high;
2. the dismounting is convenient, the structural damage to large-size threads is avoided, the repeated use is realized, and the cost is reduced.
Drawings
FIG. 1 is a schematic structural view of a detachable wedge-shaped anti-loosening structure for large-size threads according to the present invention;
FIG. 2 is a schematic structural view of a position where the detachable wedge-shaped anti-loosening structure for large-size threads provided by the invention is installed between large-size internal and external threads;
FIG. 3 is a cross-sectional view of a removable wedge-shaped anti-loosening structure for large-sized threads provided by the present invention installed between a large-sized internal thread and a large-sized external thread;
FIG. 4 is a cross-sectional view of a removable wedge lock for a large size thread provided by the present invention;
FIG. 5 is a cross-sectional view of a lag screw of the present invention;
FIG. 6 is a partial cross-sectional view of the elastic block of the present invention;
FIG. 7 is a schematic view showing the connection of a lag screw, a wedge-shaped lag block and a soft wedge-shaped extrusion block according to the present invention;
FIG. 8 is a structural outline view of the soft wedge-shaped extrusion block of the present invention.
The device comprises a shell, an outer surface plane, a 2-elastic screw, a 21-second boss, a 3-wedge-shaped elastic block, a 31-groove, a 32-first slope surface, a 33-first vertical surface, a 4-soft wedge-shaped extrusion block, a 41-second slope surface, a 42-second vertical surface, a 43-first boss, a 5-threaded through hole, a 6-opening, a 7-large-size internal thread, an 8-large-size external thread, a 9-mounting support lug and a 10-mounting through hole, wherein the shell is arranged at the 1 part, and the outer surface plane is arranged at the 11 part.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1-8, a detachable wedge-shaped anti-loosening structure for large-size threads comprises a housing provided with a cavity, a tightening screw penetrating through the housing and extending into the cavity, a wedge-shaped tightening block arranged in the cavity and abutting against the tightening screw, and a soft wedge-shaped extrusion block arranged on a side surface of the wedge-shaped tightening block, wherein the cavity is semi-cylindrical, the wedge-shaped tightening block comprises a first slope surface and a first vertical surface, the soft wedge-shaped extrusion block comprises a second slope surface and a second vertical surface, the first slope surface is directly attached to the second slope surface, the first vertical surface is attached to an inner wall of the cavity of the housing, the second vertical surface is provided with a first boss, the housing comprises an outer surface plane, the outer surface plane is provided with an opening communicated with the cavity, the first boss protrudes out of the opening plane, and a side surface of the housing is provided with a thread through hole, the threaded through hole is matched with the elastic screw.
As a preferable scheme of the invention, one side surface of the shell provided with the threaded through hole is provided with a mounting lug.
As a preferable scheme of the present invention, the mounting lug is provided with three mounting through holes, and further comprises a bolt and a nut used in cooperation with the mounting through holes, for connecting the housing with the large-sized internal thread.
As another aspect of the present invention, the mounting lug is provided with two mounting through holes.
As another aspect of the present invention, four mounting through holes are disposed on the mounting lugs.
As another aspect of the present invention, the mounting lug is provided with five mounting through holes.
As another aspect of the present invention, six mounting through holes are provided on the mounting lugs.
As a preferable scheme of the invention, the wedge-shaped elastic block is made of copper, the soft wedge-shaped extrusion block is an aluminum or copper wedge-shaped extrusion block, and the tensile strength of the wedge-shaped extrusion block is lower than 600 MPa.
As a preferable scheme of the present invention, a second boss is circumferentially arranged at a tail end of the tightening screw, a groove matched with the second boss is arranged at one end of the wedge-shaped tightening block, which is abutted to the tightening screw, and the wedge-shaped tightening block is connected to the tightening screw in a clamping groove structure.
The wedge-shaped elastic block and the soft wedge-shaped extrusion block are in flexible contact.
In a preferred embodiment of the present invention, the cross section of the soft wedge-shaped extrusion block is rectangular or square.
The assembly process of the detachable wedge-shaped anti-loosening structure of the large-size thread comprises the following steps:
the shell is twisted from the screw thread through-hole part earlier to the lag screw, packs into the wedge elasticity piece from the bottom of casing again, guarantees that the second boss of lag screw fixes in the recess of wedge elasticity piece, packs into soft wedge extrusion piece from the cavity bottom again, guarantees that wedge elasticity piece and soft wedge extrusion piece contact surface laminate.
The invention also provides a large-size internal and external thread connecting piece with the detachable wedge-shaped anti-loose structure, the large-size external thread is connected with the large-size internal thread, the detachable wedge-shaped anti-loose structure of the large-size thread is arranged between the large-size external thread and the large-size internal thread and is fixed on the end surface of the large-size internal thread piece, the end surface of the large-size internal thread piece is provided with an installation hole matched with the large-size internal and external thread connecting piece of the detachable wedge-shaped anti-loose structure for installation, the periphery of the hole is also provided with a support lug installation hole matched with the installation support lug, the large-size internal thread piece is connected with the detachable wedge-shaped anti-loose structure by using a bolt and a nut, and after connection, the opening plane is tangent to the crest of the large-size external thread.
The design method of the large-size internal and external thread connecting piece with the detachable wedge-shaped anti-loosening structure comprises the following steps:
in order to achieve a reliable anti-loosening effect, the design of the detachable wedge-shaped anti-loosening structure and the large-size internal and external thread connecting piece meets the following principle:
the selection principle of the size of the large-size thread and the hardness between the soft wedge-shaped extrusion blocks,
the soft wedge-shaped extrusion block is elastically deformed, generates deformation when being acted by external force, and recovers the original shape after the external force is removed;
elastic modulus formula:
σ＝Eε
e is elastic modulus sigma stress epsilon strain
The higher the thread tooth height of the large-size internal and external threads is, the larger the elastic modulus E of the soft wedge-shaped extrusion block is, the less deformation of the soft wedge-shaped extrusion block is, and the larger the generated elastic stress is, the better the obtained anti-loosening effect is.
The selection principle of the size of the large-size thread and the hardness of the soft wedge-shaped extrusion block is as follows:
l1 is defined as the height of the thread tooth of a large-size thread, L2 is the maximum deformation depth of the soft wedge-shaped extrusion block, and L2The length of the film is 1/4-1/3L1Length, both can guarantee that soft wedge extrusion piece can play locking effect when taking place deformation, can guarantee again that soft wedge extrusion piece can normally resume the deformation when dismantling locking structure, and the tensile strength of soft wedge extrusion piece is less than 600MPa, and jumbo size screw thread tensile strength is higher than 1000 MPa.
The working principle of the invention is as follows: the utility model provides a flexible wedge extrusion piece of dismantling wedge anti loosening structure of jumbo size screw thread takes place to extrude after the atress and gets into in the clearance between jumbo size external screw thread and the female connection spare, has increased the frictional force between the screw thread pair, does not destroy the structure between the threaded connection spare, has strengthened locking effect, has guaranteed the security of structure simultaneously. When the large-size threaded connecting piece structure needs to be disassembled, the elastic screw is loosened, the soft wedge-shaped extrusion block rebounds and restores to deform, the friction force between the thread pairs is reduced, and the thread pairs can be normally disassembled. The soft wedge-shaped extrusion block is in slope contact with the wedge-shaped elastic block, and the degree of tightness of the elastic screw is converted into the extrusion deformation degree of the soft wedge-shaped extrusion block through the slope, so that the friction force between the large-size thread pair is controlled, and the effect of adjusting the degree of tightness is achieved. The groove of the wedge-shaped tightening block is clamped with the second boss of the tightening screw, and the horizontal displacement of the tightening screw is adjusted and transmitted to the horizontal displacement of the wedge-shaped tightening block through the second boss, so that the tightness degree of the anti-loosening structure can be adjusted at any time, and the effects of repeated tightening and dismantling are achieved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A detachable wedge-shaped anti-loosening structure of a large-size thread is characterized by comprising a shell provided with a cavity, a tightening screw penetrating through the shell and extending into the cavity, a wedge-shaped tightening block arranged in the cavity and abutted against the tightening screw, and a soft wedge-shaped extrusion block arranged on the side surface of the tightening block, the wedge-shaped elastic block comprises a first slope surface and a first vertical surface, the soft wedge-shaped extrusion block comprises a second slope surface and a second vertical surface, the first slope surface is directly jointed with the second slope surface, the first vertical surface is jointed with the inner wall of the cavity of the shell, the second vertical surface is provided with a first boss, the shell comprises an outer surface plane, the outer surface plane is provided with an opening communicated with the cavity, the first boss protrudes out of the opening plane, a threaded through hole is formed in one side face of the shell, and the threaded through hole is matched with the elastic screw.
2. A large size thread removable wedge locking structure as claimed in claim 1, wherein said housing has a mounting lug at a side thereof where said threaded through hole is formed.
3. The removable wedge-shaped anti-loosening structure for the large-size threads as claimed in claim 2, wherein the mounting lugs are provided with a plurality of mounting through holes, and further comprising fasteners used in cooperation with the mounting through holes for connecting the housing with the large-size internal threads.
4. A large size screw detachable wedge locking structure as claimed in claim 1, wherein said wedge block is copper wedge block, and said soft wedge extrusion block is aluminum or copper wedge extrusion block.
5. A large-size threaded detachable wedge-shaped anti-loosening structure as claimed in claim 1, wherein a second boss is circumferentially arranged at the tail end of the tightening screw, a groove matched with the second boss is arranged at one end of the wedge-shaped tightening block, which is abutted to the tightening screw, and the wedge-shaped tightening block and the tightening screw are connected in a clamping groove structure.
6. A large size thread removable wedge lock as in claim 1, wherein said wedge blocks and said soft wedge extrusions are in compliant contact.
7. A large size thread detachable wedge anti-loosening structure according to claim 1, wherein the cross section of the soft wedge-shaped extrusion block is rectangular or square.
8. A large-size internal and external thread connecting piece with a detachable wedge-shaped anti-loosening structure, wherein a large-size external thread is connected with a large-size internal thread, and the large-size internal thread connecting piece is characterized in that the detachable wedge-shaped anti-loosening structure of the large-size thread in any one of claims 1 to 7 is installed between the large-size external thread and the large-size internal thread and is fixed on the end face of the large-size internal thread piece, and the end face of the large-size internal thread piece is provided with an installation hole matched with the large-size internal and external thread connecting piece of the detachable wedge-shaped anti-loosening structure for installation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122599907.2U CN216951226U (en) | 2021-10-27 | 2021-10-27 | Detachable wedge-shaped anti-loosening structure of large-size thread and internal and external thread connecting piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122599907.2U CN216951226U (en) | 2021-10-27 | 2021-10-27 | Detachable wedge-shaped anti-loosening structure of large-size thread and internal and external thread connecting piece |
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| CN216951226U true CN216951226U (en) | 2022-07-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115789061A (en) * | 2023-02-07 | 2023-03-14 | 常州市恒瑞汽车科技有限公司 | Antitheft nut and nut assembly for locking automobile tire |
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2021
- 2021-10-27 CN CN202122599907.2U patent/CN216951226U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115789061A (en) * | 2023-02-07 | 2023-03-14 | 常州市恒瑞汽车科技有限公司 | Antitheft nut and nut assembly for locking automobile tire |
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