CN220910208U - Self-locking nut - Google Patents

Self-locking nut Download PDF

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Publication number
CN220910208U
CN220910208U CN202322683154.2U CN202322683154U CN220910208U CN 220910208 U CN220910208 U CN 220910208U CN 202322683154 U CN202322683154 U CN 202322683154U CN 220910208 U CN220910208 U CN 220910208U
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CN
China
Prior art keywords
nut
wall
hole
cyclic annular
self
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Active
Application number
CN202322683154.2U
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Chinese (zh)
Inventor
申达勤
高少华
王强强
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Chinjet Precision Electron Co ltd
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Chinjet Precision Electron Co ltd
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Priority to CN202322683154.2U priority Critical patent/CN220910208U/en
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Publication of CN220910208U publication Critical patent/CN220910208U/en
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Abstract

The utility model relates to the technical field of nuts, in particular to a self-locking nut. The technical proposal comprises: the bolt, install first nut and second nut on the outer wall of bolt, and first nut is located the top of second nut, first cavity cyclic annular lug is installed to the bottom of first nut, first cavity cyclic annular connecting block is installed to the bottom of first cavity cyclic annular lug, the second cavity cyclic annular lug is installed on the top of second nut, the second cavity cyclic annular connecting block is installed on the top of second cavity cyclic annular lug. The utility model effectively solves the problem that the existing connection between the bolt and the nut is loosened due to external vibration factors; the utility model can effectively prevent the connection between the screw and the first nut and the second nut from loosening caused by vibration, and has strong practicability.

Description

Self-locking nut
Technical Field
The utility model relates to the technical field of nuts, in particular to a self-locking nut.
Background
Nuts are parts of nuts which are screwed with bolts or screws to play a role in fastening, and all components which are necessary for manufacturing machines are classified into carbon steel, stainless steel, nonferrous metals (such as copper) and the like according to different materials.
In order to prevent the phenomenon, the self-locking nut is invented. The self-locking nut mainly has the functions of looseness prevention and vibration resistance, but has a certain problem in the existing self-locking nut, so that the existing self-locking nut is improved.
In the prior art, the nut often has loosening phenomenon after being mounted on a bolt, so that a connecting structure is loosened, the nut is easy to fall off, the structure is fixed, a plurality of measures are taken for preventing the nut from loosening, such as measures of adding an elastic stop pad, mounting a stop pin, coating a glue on a thread and the like, and the measures are inconvenient to operate or poor in anti-loosening effect, so that a self-locking nut is provided for solving the existing problem.
Disclosure of utility model
The present utility model is directed to a self-locking nut, which solves the above-mentioned problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a self-locking nut, includes the bolt, install first nut and second nut on the outer wall of bolt, and first nut is located the top of second nut, first cavity cyclic annular lug is installed to the bottom of first nut, first cavity cyclic annular connecting block is installed to the bottom of first cavity cyclic annular lug, the second cavity cyclic annular lug is installed on the top of second nut, second cavity cyclic annular connecting block is installed on the top of second cavity cyclic annular lug, first cavity cyclic annular connecting block is located the inboard of second cavity cyclic annular connecting block, the mounting slotted hole has all been seted up to the outer wall both sides of first cavity cyclic annular connecting block, the one end inner wall of mounting slotted hole is connected with the boss through the spring, the other end of boss runs through the arc slotted hole, and the outer wall both sides at second cavity cyclic annular lug are seted up to the arc slotted hole.
Through the cooperation setting of a series of structures, because the left-handed threaded hole on the first nut is in threaded engagement connection with the external thread on the outer wall of the bolt, the right-handed threaded hole on the second nut is in threaded engagement connection with the external thread on the outer wall of the bolt, and the first nut and the second nut are in a connection state on the bolt, the first nut and the second nut are mutually restrained, so that the problem that the existing connection between the bolts and the nuts is loosened due to external vibration factors is effectively solved; according to the utility model, the connection between the screw and the first nut and the second nut caused by vibration can be effectively prevented from loosening, when a worker needs to separate the first nut from the second nut, the worker presses the protruding block and rotates the first nut to separate the first nut from the second nut, so that the connection or separation between the first nut and the second nut by the worker is facilitated, and the operation and the use are convenient.
Preferably, a left-handed threaded hole is formed in the center of the end wall of the first nut, and the left-handed threaded hole on the first nut is in threaded engagement with external threads on the outer wall of the bolt.
Preferably, a right-handed threaded hole is formed in the center of the end wall of the second nut, and the right-handed threaded hole on the second nut is in threaded engagement with the external threads on the outer wall of the bolt.
Preferably, the outer wall of the first hollow annular connecting block is in gap connection with the inner wall of the second hollow annular connecting block.
Preferably, the outer wall of the protruding block is in clearance connection with the hole wall of the mounting slot hole.
Preferably, the outer wall of the protruding block is in gap connection with the hole wall of the arc-shaped slot hole.
Preferably, the limiting blocks are arranged on two sides of the outer wall of one end of the protruding block, the other ends of the limiting blocks are arranged in the limiting slotted holes, the outer wall of each limiting block is in clearance connection with the hole walls of the limiting slotted holes, and the limiting slotted holes are formed on two sides of the hole walls of the mounting slotted holes.
Compared with the prior art, the utility model has the beneficial effects that:
1. According to the utility model, through the matching arrangement of a series of structures, as the left-handed threaded hole on the first nut is in threaded engagement connection with the external thread on the outer wall of the bolt, the right-handed threaded hole on the second nut is in threaded engagement connection with the external thread on the outer wall of the bolt, and the first nut and the second nut are in a connection state on the bolt, and the first nut and the second nut are mutually restrained, the problem that the existing connection between the bolts and the nuts is loosened due to external vibration factors is effectively solved; the utility model can effectively prevent the connection between the screw and the first nut and the second nut from loosening caused by vibration.
2. According to the utility model, through the cooperation arrangement of a series of structures, when a worker needs to separate the first nut from the second nut, the worker presses the convex block and rotates the first nut to separate the first nut from the second nut, so that the worker can conveniently connect or separate the first nut from the second nut, and the nut is convenient to operate and use and high in practicability.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the internal structure of the present utility model;
FIG. 3 is a schematic view of the structure of the present utility model shown in FIG. 2 at a partially enlarged scale;
FIG. 4 is a schematic view of a second nut according to the present utility model;
fig. 5 is a schematic structural view of a first nut according to the present utility model.
In the figure: 1. a bolt; 2. a first nut; 201. a first hollow annular bump; 202. a first hollow annular connection block; 203. a left-handed threaded hole; 204. a protruding block; 205. a limiting block; 206. limiting slot holes; 207. a spring; 208. a mounting slot; 3. a second nut; 301. a second hollow annular bump; 302. an arc-shaped slot; 303. a second hollow annular connection block; 304. right-handed threaded holes.
Detailed Description
The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.
Example 1
As shown in fig. 1-5, the self-locking nut provided by the utility model comprises a bolt 1, wherein a first nut 2 and a second nut 3 are installed on the outer wall of the bolt 1, the first nut 2 is positioned above the second nut 3, a first hollow annular bump 201 is installed at the bottom end of the first nut 2, a first hollow annular connecting block 202 is installed at the bottom end of the first hollow annular bump 201, a second hollow annular bump 301 is installed at the top end of the second nut 3, a second hollow annular connecting block 303 is installed at the top end of the second hollow annular bump 301, the first hollow annular connecting block 202 is positioned at the inner side of the second hollow annular connecting block 303, mounting slots 208 are formed on two sides of the outer wall of the first hollow annular connecting block 202, one end inner wall of each mounting slot 208 is connected with a protruding block 204 through a spring 207, the other end of each protruding block 204 penetrates through an arc-shaped slot 302, and the arc-shaped slot 302 is formed on two sides of the outer wall of the second hollow annular bump 301.
The working principle of the self-locking nut based on the first embodiment is as follows: when the novel screw bolt is used, the left-handed threaded hole 203 on the first nut 2 is in threaded engagement with the external threads on the outer wall of the screw bolt 1, the right-handed threaded hole 304 on the second nut 3 is in threaded engagement with the external threads on the outer wall of the screw bolt 1, the first nut 2 and the second nut 3 are in a connection state on the screw bolt 1, and the first nut 2 and the second nut 3 are mutually held down, so that the problem that looseness is generated between the screw bolt 1 and the screw nut due to external vibration factors in the connection between the prior screw bolt 1 and the screw nut is effectively solved; the utility model can effectively prevent the connection between the screw and the first nut 2 and the second nut 3 from loosening caused by vibration, when a worker needs to separate the first nut 2 from the second nut 3, the worker presses the protruding block 204 and rotates the first nut 2 to separate the first nut 2 from the second nut 3, thereby facilitating the connection or separation between the first nut 2 and the second nut 3 by the worker, and being convenient to operate and use.
Example two
As shown in fig. 1-5, compared with the first embodiment, the self-locking nut according to the present utility model further includes: the left-handed screw hole 203 is arranged at the center of the end wall of the first nut 2, the left-handed screw hole 203 on the first nut 2 is in threaded engagement with the external threads on the outer wall of the bolt 1, the right-handed screw hole 304 is arranged at the center of the end wall of the second nut 3, the right-handed screw hole 304 on the second nut 3 is in threaded engagement with the external threads on the outer wall of the bolt 1, the outer wall of the first hollow annular connecting block 202 is in clearance connection with the inner wall of the second hollow annular connecting block 303, the outer wall of the boss 204 is in clearance connection with the hole wall of the mounting slot 208, the outer wall of the boss 204 is in clearance connection with the hole wall of the arc slot 302, the limiting blocks 205 are arranged on two sides of one end outer wall of the boss 204, the other end of each limiting block 205 is arranged in each limiting slot 206, the outer wall of each limiting slot 206 is in clearance connection with the hole wall of each limiting slot 206, and each limiting slot 206 is arranged on two sides of the hole wall of the mounting slot 208.
In this embodiment, because the outer wall of the first hollow annular connection block 202 is in gap connection with the inner wall of the second hollow annular connection block 303, so that the first hollow annular connection block 202 is conveniently moved into the second hollow annular connection block 303 or the first hollow annular connection block 202 is conveniently moved out of the second hollow annular connection block 303, because the outer wall of the protruding block 204 is in gap connection with the hole wall of the mounting slot 208, the outer wall of the protruding block 204 is in gap connection with the hole wall of the arc slot 302, the two sides of one end outer wall of the protruding block 204 are both provided with the limiting blocks 205, the other end of the limiting blocks 205 are arranged in the limiting slot 206, and the outer wall of the limiting blocks 205 are in gap connection with the hole wall of the limiting slot 206, so that the movement of the protruding block 204 can be limited and guided.
The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims (7)

1. Self-locking nut, comprising a bolt (1), characterized in that: install first nut (2) and second nut (3) on the outer wall of bolt (1), and first nut (2) are located the top of second nut (3), first cavity cyclic annular lug (201) are installed to the bottom of first nut (2), first cavity cyclic annular connecting block (202) are installed to the bottom of first cavity cyclic annular lug (201), second cavity cyclic annular lug (301) are installed on the top of second nut (3), second cavity cyclic annular connecting block (303) are installed on the top of second cavity cyclic annular lug (301), first cavity cyclic annular connecting block (202) are located the inboard of second cavity cyclic annular connecting block (303), installation slotted hole (208) have all been seted up to the outer wall both sides of first cavity cyclic annular connecting block (202), the one end inner wall of installation slotted hole (208) is connected with protruding piece (204) through spring (207), the other end of protruding piece (204) runs through arc slotted hole (302), and arc slotted hole (302) are seted up in the outer wall both sides of second cavity cyclic annular lug (301).
2. A self-locking nut as defined in claim 1, wherein: the left-handed threaded hole (203) is formed in the center of the end wall of the first nut (2), and the left-handed threaded hole (203) on the first nut (2) is in threaded engagement with external threads on the outer wall of the bolt (1).
3. A self-locking nut as defined in claim 1, wherein: the right-handed threaded hole (304) is formed in the center of the end wall of the second nut (3), and the right-handed threaded hole (304) in the second nut (3) is in threaded engagement with external threads on the outer wall of the bolt (1).
4. A self-locking nut as defined in claim 1, wherein: the outer wall of the first hollow annular connecting block (202) is in clearance connection with the inner wall of the second hollow annular connecting block (303).
5. A self-locking nut as defined in claim 1, wherein: the outer wall of the protruding block (204) is in clearance connection with the hole wall of the mounting slot hole (208).
6. A self-locking nut as defined in claim 1, wherein: the outer wall of the protruding block (204) is in clearance connection with the hole wall of the arc-shaped slot hole (302).
7. A self-locking nut as defined in claim 1, wherein: limiting blocks (205) are arranged on two sides of the outer wall of one end of each protruding block (204), the other end of each limiting block (205) is arranged in each limiting groove hole (206), the outer wall of each limiting block (205) is in clearance connection with the hole wall of each limiting groove hole (206), and each limiting groove hole (206) is formed on two sides of the hole wall of each mounting groove hole (208).
CN202322683154.2U 2023-10-08 2023-10-08 Self-locking nut Active CN220910208U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322683154.2U CN220910208U (en) 2023-10-08 2023-10-08 Self-locking nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322683154.2U CN220910208U (en) 2023-10-08 2023-10-08 Self-locking nut

Publications (1)

Publication Number Publication Date
CN220910208U true CN220910208U (en) 2024-05-07

Family

ID=90915356

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322683154.2U Active CN220910208U (en) 2023-10-08 2023-10-08 Self-locking nut

Country Status (1)

Country Link
CN (1) CN220910208U (en)

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