CN218266741U - Self-locking fastening screw - Google Patents
Self-locking fastening screw Download PDFInfo
- Publication number
- CN218266741U CN218266741U CN202221997506.0U CN202221997506U CN218266741U CN 218266741 U CN218266741 U CN 218266741U CN 202221997506 U CN202221997506 U CN 202221997506U CN 218266741 U CN218266741 U CN 218266741U
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Abstract
The utility model belongs to the technical field of the hardware fastening spare technique and specifically relates to a from locking-type fastening screw, including inside check lock lever and the outside screw head on coaxial fixed outside top in the inside check lock lever outside, inside check lock lever outside slip is equipped with outside screw assembly subassembly. The self-locking fastening screw rod is assembled with the external thread assembly component outside the internal locking rod in a sliding manner, and the external thread assembly component is extruded through assembly, so that the internal telescopic limiting plate is controlled to be outwards overturned and extruded, the threaded hole is locked, and the self-locking capacity of the screw rod is greatly improved; through being located annular top reset groove inside and setting up top extrusion spring, can extrude between outside screw rod head and the outside screw assembly subassembly, further promote the assembly extrusion degree of screw rod, the security strengthens greatly.
Description
Technical Field
The utility model belongs to the technical field of hardware fastening spare technique and specifically relates to a from locking-type fastening screw.
Background
The screw is a cylindrical threaded fastener matched with a nut, and the cylindrical threaded fastener consists of a head part and a screw rod (a cylinder with external threads), needs to be matched with the nut and is used for fastening and connecting two parts with through holes. According to the stress mode of connection: common and reamed for use; according to the shape of the head: hexagonal, round, square, countersunk, etc.
Traditional bolt structure is fixed, can't adjust external structure according to the assembled state, leads to the locking performance of taking off very limited.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the problems existing in the background technology, an improved self-locking fastening screw is provided, and the problem that the anti-loosening performance is very limited due to the fact that the traditional bolt structure is fixed and the external structure cannot be adjusted according to the assembly state is solved.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a from locking-type fastening screw, includes inside check lock lever and the coaxial outside screw rod head of fixing on top outside the inside check lock lever, the inside check lock lever outside slide and be equipped with outside screw assembly subassembly, inside check lock lever keep away from outside screw rod head top coaxial be fixed with round platform shape top locking head, outside screw assembly subassembly including slide cup joint at the external screw thread assembly section of thick bamboo in the outside of inside check lock lever, set up at a plurality of bar extrusion adjustment tanks in the external screw thread assembly section of thick bamboo outside, movable assembly at the inside flexible limiting plate of bar extrusion adjustment tank inside, install at the inside extrusion shell fragment of inside flexible limiting plate medial extremity and fix the top extrusion piece on inside flexible limiting plate side direction top.
The external thread assembly cylinder is close to top locking head end and has seted up conical structure top extrusion tank, external thread assembly cylinder close to outside screw rod head end and has seted up annular top reset groove.
The inner side surface of the top extrusion groove is provided with a lateral linkage port communicated with the strip-shaped extrusion adjusting groove, and the top extrusion block is movably assembled with the lateral linkage port by penetrating through the inside of the lateral linkage port.
And a top extrusion spring is movably inserted in the annular top reset groove.
The outer side surface of the inner locking rod is provided with a lateral limiting groove for preventing the outer thread assembly component from rotating.
The inner side surface of the strip-shaped extrusion adjusting groove, which is far away from the lateral linkage port end, is provided with an integral internal assembly shaft rod, and the inner side surface of the internal telescopic limiting plate is provided with a necking assembly groove matched with the internal assembly shaft rod.
The beneficial effects of the utility model are that:
(1) The self-locking fastening screw rod is assembled with the external thread assembly component outside the internal locking rod in a sliding manner, and the external thread assembly component is extruded through assembly, so that the internal telescopic limiting plate is controlled to be outwards overturned and extruded, the threaded hole is locked, and the self-locking capacity of the screw rod is greatly improved;
(2) Through being located annular top reset groove inside and setting up top extrusion spring, can extrude between outside screw rod head and the outside screw assembly subassembly, further promote the assembly extrusion degree of screw rod, the security strengthens greatly.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an internal cross-sectional view of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 and fig. 2 show a from locking-type fastening screw, including inside check lock lever 1 and the coaxial outside screw head 2 of fixing on the top of the 1 outside of inside check lock lever, the 1 outside slip of inside check lock lever is equipped with outside screw assembly subassembly, inside check lock lever 1 is kept away from the coaxial circular truncated cone top locking head 3 that is fixed on the 2 tops of outside screw head, outside screw assembly subassembly cup joints the external screw thread assembly section of thick bamboo 4 in the 1 outside of inside check lock lever including sliding, set up 2 bar extrusion adjustment tanks 5 in the 4 outsides of external screw assembly section of thick bamboo, the flexible limiting plate 6 of inside of movable assembly in bar extrusion adjustment tank 5, install the inside extrusion shell fragment 7 at the 6 medial extremity of inside flexible limiting plate and fix the top extrusion piece 8 on the 6 side direction tops of inside flexible limiting plate.
In order to cooperate top extrusion and elasticity to reset, the external screw thread assembly section of thick bamboo 4 closes on top locking head 3 and holds and has seted up conical structure top extrusion groove 9, and the external screw thread assembly section of thick bamboo 4 closes on outside screw head 2 and holds and has seted up annular top reset groove 10.
In order to match with lateral assembly and extrusion control, a lateral linkage port 11 communicated with the strip-shaped extrusion adjusting groove 5 is formed in the inner side surface of the top extrusion groove 9, and the top extrusion block 8 is movably assembled with the lateral linkage port 11 by penetrating through the inside of the lateral linkage port 11.
In order to cooperate with the elastic extrusion, a top extrusion spring 12 is movably inserted in the annular top reset groove 10.
In order to avoid autorotation and facilitate linkage adjustment, the outer side surface of the inner locking rod 1 is provided with a lateral limiting groove 13 for preventing the autorotation of the outer thread assembling component.
In order to facilitate movable assembly, the end, far away from the lateral linkage port 11, of the inner side surface of the strip-shaped extrusion adjusting groove 5 is provided with an integral-structure internal assembly shaft rod 14, and the inner side surface of the internal telescopic limiting plate 6 is provided with a necking assembly groove 15 matched with the internal assembly shaft rod 14.
The self-locking fastening screw is assembled with the external thread assembly component outside the internal locking rod 1 in a sliding manner, and the external thread assembly component is extruded through assembly, so that the internal telescopic limiting plate 6 is controlled to be outwards turned and extruded, the threaded hole is locked, and the self-locking capacity of the screw is greatly improved; through being located inside top extrusion spring 12 that sets up of annular top reset groove 10, can extrude between external screw head 2 and the outside screw thread assembly subassembly, further promote the assembly extrusion degree of screw rod, the security strengthens greatly.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the description, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides a from locking-type fastening screw, includes inside check lock lever (1) and coaxial outside screw head (2) of fixing on inside check lock lever (1) outside top, characterized by: inside check lock lever (1) outside slip be equipped with outside screw assembly subassembly, inside check lock lever (1) keep away from outside screw head (2) top coaxial fixation and have round platform shape top locking head (3), outside screw assembly subassembly including slip cup joint in an external screw assembly section of thick bamboo (4) in the outside of inside check lock lever (1), set up in a plurality of bars extrusion adjustment tank (5) in an external screw assembly section of thick bamboo (4) outside, movable assembly is at inside flexible limiting plate (6) in bar extrusion adjustment tank (5), install at inside extrusion shell fragment (7) of inside flexible limiting plate (6) medial extremity and fix top extrusion block (8) on inside flexible limiting plate (6) side direction top.
2. The self-locking fastening screw according to claim 1, characterized in that: the screw assembling device is characterized in that the end of the external screw assembling cylinder (4) close to the top locking head (3) is provided with a conical structure top extrusion groove (9), and the end of the external screw assembling cylinder (4) close to the external screw head (2) is provided with an annular top reset groove (10).
3. The self-locking fastening screw according to claim 2, characterized in that: the inner side surface of the top extrusion groove (9) is provided with a lateral linkage port (11) communicated with the strip-shaped extrusion adjusting groove (5), and the top extrusion block (8) is movably assembled with the lateral linkage port (11) by penetrating through the inside of the lateral linkage port (11).
4. The self-locking fastening screw according to claim 2, characterized in that: the annular top reset groove (10) is movably inserted with a top extrusion spring (12).
5. The self-locking fastening screw according to claim 1, characterized in that: the outer side surface of the inner locking rod (1) is provided with a lateral limiting groove (13) for preventing the outer thread assembly component from rotating.
6. A self-locking fastening screw according to claim 3, characterized in that: the inner side surface of the strip-shaped extrusion adjusting groove (5) is far away from the end of the lateral linkage port (11) and is provided with an integral internal assembly shaft rod (14), and the inner side surface of the internal telescopic limiting plate (6) is provided with a necking assembly groove (15) matched with the internal assembly shaft rod (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221997506.0U CN218266741U (en) | 2022-07-29 | 2022-07-29 | Self-locking fastening screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221997506.0U CN218266741U (en) | 2022-07-29 | 2022-07-29 | Self-locking fastening screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218266741U true CN218266741U (en) | 2023-01-10 |
Family
ID=84763141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221997506.0U Active CN218266741U (en) | 2022-07-29 | 2022-07-29 | Self-locking fastening screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218266741U (en) |
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2022
- 2022-07-29 CN CN202221997506.0U patent/CN218266741U/en active Active
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