CN221299708U - Spiral thread fastener with self-locking function - Google Patents
Spiral thread fastener with self-locking function Download PDFInfo
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- CN221299708U CN221299708U CN202323501195.1U CN202323501195U CN221299708U CN 221299708 U CN221299708 U CN 221299708U CN 202323501195 U CN202323501195 U CN 202323501195U CN 221299708 U CN221299708 U CN 221299708U
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of fasteners and discloses a spiral thread fastener with a self-locking function, which comprises a fastening screw, wherein a first workpiece and a second workpiece are connected with the middle part of the outer surface of the fastening screw in a threaded manner, the first workpiece is positioned below the second workpiece, a gasket is movably connected with the upper part of the outer surface of the fastening screw in a penetrating manner, the upper end of the fastening screw is fixedly connected with a fastening bolt head, the middle part of the upper end of the fastening bolt head is provided with a storage groove, the middle part of the lower groove wall of the storage groove is connected with a locking mechanism in a threaded manner, and the lower part of the outer surface of the fastening screw is connected with the self-locking mechanism in a threaded manner. According to the spiral thread fastener with the self-locking function, the fastening screw and the locking screw can be locked by arranging the locking mechanism and the self-locking mechanism, so that the whole fastener is not easy to loosen, the fixing effect on the first workpiece and the second workpiece can be enhanced, the practicability is improved, and the spiral thread fastener with the self-locking function is suitable for wide use.
Description
Technical Field
The utility model relates to the technical field of fasteners, in particular to a spiral thread fastener with a self-locking function.
Background
The fastener is used as a mechanical part for fastening connection and has very wide application, the application industry of the fastener is wide, the fastener comprises energy, electronics, electric appliances, machinery, chemical industry, metallurgy, molds, hydraulic pressure and the like, the threaded fastener is widely used in various mechanical and electrical equipment, the connection of related parts can be carried and fixed, most of the threaded fasteners can only be limited and fixed by threads in the use process of the existing threaded fasteners, the condition that the connection part of the threaded fasteners is easy to loosen when the threaded fasteners work in a vibrating environment is caused, the threaded fasteners can be shaken off, equipment can be damaged, dangerous accidents can occur, and potential safety hazards exist, so that the spiral thread fastener with a self-locking function is provided.
Disclosure of utility model
The utility model mainly aims to provide a spiral thread fastener with a self-locking function, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The utility model provides a helix threaded fastener with self-locking function, includes the fastening screw, the surface middle part threaded connection of fastening screw has first work piece and second work piece, and first work piece is located the below of second work piece, the surface upper portion of fastening screw alternates swing joint and has the packing ring, the upper end fixedly connected with fastening bolt head of fastening screw, open at the upper end middle part of fastening bolt head has the storage tank, the lower cell wall middle part threaded connection of storage tank has locking mechanism, the surface lower part threaded connection of fastening screw has self-locking mechanism.
Preferably, the self-locking mechanism comprises a first self-locking nut, the lower end of the first self-locking nut is movably connected with a second self-locking nut, and a plurality of anti-slip strips are fixedly connected to the middle part of the outer surface of the first self-locking nut and the middle part of the outer surface of the second self-locking nut.
Preferably, the locking mechanism comprises a locking screw, the upper end of the locking screw is fixedly connected with a locking bolt head, a cross groove is formed in the middle of the upper end of the locking bolt head, a locking screw hole is formed in the middle of the lower end of the fastening screw, the locking screw is in threaded connection with the locking screw hole, and the outer surface of the locking screw is in threaded connection with the lower groove wall of the storage groove.
Preferably, the direction of the threads on the locking screw rod is opposite to the direction of the threads on the fastening screw rod, the length of the locking screw rod is larger than that of the fastening screw rod, and the height and the diameter length of the locking bolt head are respectively smaller than those of the groove depth and the diameter length of the containing groove.
Preferably, a first self-locking screw hole is formed in the middle of the upper end of the first self-locking nut, a limiting groove is formed in the middle of the lower end of the first self-locking nut, a second self-locking screw hole is formed in the middle of the upper end of the second self-locking nut, the second self-locking nut is in threaded connection with the locking screw, four limiting blocks are fixedly connected to the periphery of the upper end of the second self-locking nut, and the first self-locking screw hole is in threaded connection with the fastening screw.
Preferably, the shape of the limiting block and the section of the limiting groove are both of an inverted convex structure, and the limiting block is in sliding connection with the limiting groove.
Compared with the prior art, the utility model has the following beneficial effects:
According to the spiral thread fastener with the self-locking function, the locking mechanism and the self-locking mechanism are arranged, the locking screw is inserted into the locking screw hole of the fastening screw, then the first self-locking nut is sleeved on the fastening screw, the first self-locking nut is turned to be screwed down, the second self-locking nut is sleeved on the locking screw, and the second self-locking nut is turned reversely to be screwed down, so that the fastening screw and the locking screw can be locked, the joint of the whole thread fastener is not easy to loosen when the thread fastener works in a vibrating environment, the fixing effect of the thread fastener on a first workpiece and a second workpiece can be enhanced, the thread fastener is prevented from being shaken off to damage equipment and dangerous accidents, the safety is improved, and the practicability of the thread fastener is also improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a helical thread fastener with self-locking function of the present utility model;
FIG. 2 is a schematic illustration of the connection of a fastening screw of a helical thread fastener with self-locking function to a locking mechanism according to the present utility model;
FIG. 3 is a schematic diagram of the overall structure of a self-locking mechanism of a helical thread fastener with self-locking function according to the present utility model;
Fig. 4 is a schematic cross-sectional view of a first self-locking nut of a helical thread fastener with self-locking function according to the present utility model.
In the figure: 1. fastening a screw; 2. a first workpiece; 3. a second workpiece; 4. a gasket; 5. fastening the bolt head; 6. a storage groove; 7. a locking mechanism; 8. a self-locking mechanism; 9. locking the screw hole; 71. locking the screw rod; 72. locking the bolt head; 73. a cross groove; 81. a first self-locking nut; 82. a second self-locking nut; 83. an anti-slip strip; 84. the first self-locking screw hole; 85. a limit groove; 86. the second self-locking screw hole; 87. and a limiting block.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-4, the present utility model provides a technical solution:
The utility model provides a helix threaded fastener with self-locking function, including fastening screw 1, fastening screw 1's surface middle part threaded connection has first work piece 2 and second work piece 3, and first work piece 2 is located the below of second work piece 3, fastening screw 1's surface upper portion interlude swing joint has packing ring 4, fastening screw 1's upper end fixedly connected with fastening bolt head 5, fastening bolt head 5's upper end middle part is opened has storage tank 6, storage tank 6's lower cell wall middle part threaded connection has locking mechanism 7, fastening screw 1's surface lower part threaded connection has self-locking mechanism 8.
In the embodiment, the locking mechanism 7 comprises a locking screw 71, the upper end of the locking screw 71 is fixedly connected with a locking bolt head 72, the middle part of the upper end of the locking bolt head 72 is provided with a cross groove 73, the middle part of the lower end of the fastening screw 1 is provided with a locking screw hole 9, the locking screw 71 is in threaded connection with the locking screw hole 9, and the outer surface of the locking screw 71 is in threaded connection with the lower groove wall of the storage groove 6; the direction of the threads on the locking screw 71 is opposite to the direction of the threads on the fastening screw 1, so that the self-locking function can be achieved, the length of the locking screw 71 is larger than that of the fastening screw 1, the second self-locking nut 82 can be connected with the locking screw 71, the height and the diameter length of the locking bolt head 72 are respectively smaller than those of the groove depth and the diameter length of the containing groove 6, and the locking bolt head 72 is just placed in the containing groove 6.
In this embodiment, the self-locking mechanism 8 includes a first self-locking nut 81, a second self-locking nut 82 is movably connected to the lower end of the first self-locking nut 81, and a plurality of anti-slip strips 83 are fixedly connected to the middle part of the outer surface of the first self-locking nut 81 and the middle part of the outer surface of the second self-locking nut 82; the middle part of the upper end of the first self-locking nut 81 is provided with a first self-locking screw hole 84, the middle part of the lower end of the first self-locking nut 81 is provided with a limit groove 85, the middle part of the upper end of the second self-locking nut 82 is provided with a second self-locking screw hole 86, the second self-locking nut 82 is in threaded connection with the locking screw 71, the periphery of the upper end of the second self-locking nut 82 is fixedly connected with four limit blocks 87, and the first self-locking screw hole 84 is in threaded connection with the fastening screw 1; the shape of the limiting block 87 and the section of the limiting groove 85 are both of an inverted convex structure, and the limiting block 87 is slidably connected with the limiting groove 85, so that the limiting groove 85 plays a limiting role on the limiting block 87, and the limiting block 87 cannot be separated from the limiting groove 85.
In the use process, the fastening screw 1 is firstly sequentially penetrated through the second workpiece 3 and the first workpiece 2, the fastening bolt head 5 is tightly contacted with the second workpiece 3 through the gasket 4, the locking screw 71 is then inserted into the locking screw hole 9 of the fastening screw 1, the locking bolt head 72 is just positioned in the storage groove 6 to be stored, at this time, the lower part of the outer surface of the locking screw 71 is exposed from the lower part of the fastening screw 1, then the first self-locking nut 81 is sleeved on the lower part of the outer surface of the fastening screw 1, the first self-locking nut 81 is rotated to tightly fix the fastening screw 1, meanwhile, the second self-locking nut 82 is also sleeved on the lower part of the outer surface of the locking screw 71, then the second self-locking nut 82 is reversely rotated to enable the limiting block 87 to slide in the limiting groove 85, the second self-locking nut 82 to be tightly fixed on the locking screw 71, the connection effect of the locking screw 71 and the fastening screw 1 can be enhanced, and the screw 1 can be easily damaged due to the fact that the upper thread direction of the locking screw 71 is opposite to the upper thread direction of the fastening screw 1, the fastening screw 1 can be easily locked to the lower than the fastening screw 1, the whole device can be easily damaged by vibration, and the thread can be easily broken, the thread can be easily removed from the thread can be easily caused by the vibration of the fastening device, and the fastening device can be easily be prevented from the thread is easily damaged, the thread is easily caused by the thread, the thread is easily and the thread is easily removed.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. Spiral thread fastener with self-locking function, including fastening screw (1), its characterized in that: the middle part of the outer surface of the fastening screw (1) is in threaded connection with a first workpiece (2) and a second workpiece (3), the first workpiece (2) is located below the second workpiece (3), a gasket (4) is inserted and movably connected to the upper part of the outer surface of the fastening screw (1), the upper end of the fastening screw (1) is fixedly connected with a fastening bolt head (5), the middle part of the upper end of the fastening bolt head (5) is provided with a storage groove (6), the middle part of the lower groove wall of the storage groove (6) is in threaded connection with a locking mechanism (7), and the lower part of the outer surface of the fastening screw (1) is in threaded connection with a self-locking mechanism (8);
the self-locking mechanism (8) comprises a first self-locking nut (81), the lower end of the first self-locking nut (81) is movably connected with a second self-locking nut (82), and a plurality of anti-slip strips (83) are fixedly connected to the middle part of the outer surface of the first self-locking nut (81) and the middle part of the outer surface of the second self-locking nut (82).
2. A helical-thread fastener with self-locking function as defined in claim 1, wherein: the locking mechanism (7) comprises a locking screw (71), the upper end of the locking screw (71) is fixedly connected with a locking bolt head (72), a cross groove (73) is formed in the middle of the upper end of the locking bolt head (72), a locking screw hole (9) is formed in the middle of the lower end of the fastening screw (1), the locking screw (71) is in threaded connection with the locking screw hole (9), and the outer surface of the locking screw (71) is in threaded connection with the lower groove wall of the storage groove (6).
3. A helical-thread fastener with self-locking function as defined in claim 2, wherein: the direction of the threads on the locking screw rod (71) is opposite to the direction of the threads on the fastening screw rod (1), the length of the locking screw rod (71) is larger than that of the fastening screw rod (1), and the height and the diameter length of the locking bolt head (72) are respectively smaller than those of the groove depth and the diameter length of the containing groove (6).
4. A helical-thread fastener with self-locking function as defined in claim 1, wherein: the upper end middle part of first self-locking nut (81) is opened there is first self-locking screw (84), the lower extreme middle part of first self-locking nut (81) is opened there is spacing groove (85), the upper end middle part of second self-locking nut (82) is opened there is second self-locking screw (86), and second self-locking nut (82) and locking screw (71) threaded connection, four stopper (87) are fixedly connected with in the upper end periphery of second self-locking nut (82), first self-locking screw (84) and fastening screw (1) threaded connection.
5. A self-locking helical-thread fastener as defined in claim 4, wherein: the shape of the limiting block (87) and the section of the limiting groove (85) are of an inverted convex structure, and the limiting block (87) is in sliding connection with the limiting groove (85).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323501195.1U CN221299708U (en) | 2023-12-21 | 2023-12-21 | Spiral thread fastener with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323501195.1U CN221299708U (en) | 2023-12-21 | 2023-12-21 | Spiral thread fastener with self-locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221299708U true CN221299708U (en) | 2024-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323501195.1U Active CN221299708U (en) | 2023-12-21 | 2023-12-21 | Spiral thread fastener with self-locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221299708U (en) |
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2023
- 2023-12-21 CN CN202323501195.1U patent/CN221299708U/en active Active
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