CN215521505U - Spiral thread fastener with self-locking function - Google Patents
Spiral thread fastener with self-locking function Download PDFInfo
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- CN215521505U CN215521505U CN202120507749.0U CN202120507749U CN215521505U CN 215521505 U CN215521505 U CN 215521505U CN 202120507749 U CN202120507749 U CN 202120507749U CN 215521505 U CN215521505 U CN 215521505U
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Abstract
The utility model discloses a spiral thread fastener with a self-locking function, and particularly relates to the technical field of thread fasteners. According to the utility model, the movable limiting fixed rod is arranged, so that the positions of the screw rod and the second workpiece can be locked, the first bolt head and the screw rod can firmly fix the first workpiece and the second workpiece, the whole fastener is not easy to loosen, the fastening effect is good, and the equipment is prevented from being damaged and accidents caused by loosening of the fastener.
Description
Technical Field
The embodiment of the utility model relates to the technical field of threaded fasteners, in particular to a spiral thread fastener with a self-locking function.
Background
The fastener is a mechanical part which is used for fastening connection and has extremely wide application. The fastener is widely used in the industries including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, molds, hydraulic pressure and the like, and various fasteners can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments, supplies and the like, and are the most widely applied mechanical basic parts. It features various varieties and specifications, different functions and usages, and very high standardization, serialization and universalization degrees.
Most of the existing spiral thread fasteners are limited and fixed only by threads, the fixing mode is single, the fasteners are loosened after a long time, the looseness of the joints of the fasteners can be caused, and equipment and dangerous accidents can be damaged even.
SUMMERY OF THE UTILITY MODEL
Therefore, the spiral thread fastener with the self-locking function is provided by the embodiment of the utility model, the positions of the screw rod and the second workpiece can be locked by arranging the movable limiting fixing rod, so that the first bolt head and the screw rod can be firmly fixed on the first workpiece and the second workpiece, the whole fastener is not easy to loosen, the fastening effect is good, the damage and the accident of equipment caused by the loosening of the fastener are avoided, and the problems that in the prior art, the spiral thread fastener is limited and fixed mostly only by the screw thread, the fixing mode is single, the fastener is loosened after a long time, the connection part of the fastener is loosened, even the equipment is damaged, and the dangerous accident is caused are solved.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: a spiral thread fastener with a self-locking function comprises a first bolt head, a screw rod, a first workpiece and a second workpiece, wherein the screw rod is fixedly arranged at the bottom end of the first bolt head, the first workpiece and the second workpiece are arranged at the bottom of the first bolt head, the second workpiece is arranged at the bottom end of the first workpiece, one end of the screw rod penetrates through the first workpiece and the second workpiece, the screw rod is in threaded connection with the first workpiece and the second workpiece, a thread groove is formed in the top end of the first bolt head, a second bolt head is arranged in the thread groove, the outer end of the second bolt head is in threaded connection with the inner wall of the thread groove, a movable groove is formed in the screw rod, a movable rod is fixedly arranged at the bottom end of the second bolt head, one end of the movable rod penetrates through the bottom end of the first bolt head and extends into the movable groove, and a cavity is formed in the screw rod, the cavity is established at the activity tank bottom and is linked together with the activity inslot portion, inside movable rod one end extends into the cavity, the inside bottom of cavity is equipped with two movable blocks, the movable block top is tangent with movable rod one end, the fixed spacing dead lever that is equipped with in the movable block outside, spacing dead lever bottom contacts with the inside bottom of cavity.
Further, two communicating ports are formed in the outer end of the screw rod, and one end of the limiting fixing rod extends into the communicating ports.
Further, the inside bottom of cavity has seted up the spout, the inside two sliders that are equipped with of spout, the slider top and movable block bottom fixed connection.
Further, the inside dead lever that is equipped with of spout, two sliders are passed to dead lever one end, the equal fixed connection of dead lever both ends and spout inner wall.
Furthermore, a spring is arranged at the outer end of the fixed rod, and two ends of the spring are fixedly connected with the inner sides of the two sliding blocks respectively.
Furthermore, a gasket is arranged at the outer end of the screw rod, the top end of the gasket is in contact with the bottom end of the first bolt head, and the bottom end of the gasket is in contact with the top end of the first workpiece.
The embodiment of the utility model has the following advantages:
according to the utility model, the second bolt head rotates to move downwards along with the rotation, the second bolt head drives the movable rod to move downwards, the movable rod pushes the two movable blocks to move towards two sides, the movable blocks drive the limiting fixed rods to move towards two sides, the limiting fixed rods pass through the communication ports and move to the outer ends of the screw rods, and the limiting fixed rods can be attached to the bottom ends of the second workpieces to limit the second workpieces, so that the positions of the screw rods can be locked.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic view of the overall structure provided by the present invention;
FIG. 2 is an enlarged schematic view of A in FIG. 1 according to the present invention;
FIG. 3 is a schematic left-side sectional view of the screw according to the present invention;
FIG. 4 is a schematic top view of a first thread start according to the present invention;
in the figure: the device comprises a first bolt head 1, a screw rod 2, a first workpiece 3, a second workpiece 4, a thread groove 5, a second bolt head 6, a movable groove 7, a movable rod 8, a cavity 9, a movable block 10, a limiting fixed rod 11, a communication port 12, a sliding groove 13, a sliding block 14, a fixed rod 15, a spring 16 and a gasket 17.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the utility model will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the utility model and that it is not intended to limit the utility model to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the attached drawings 1-4 in the specification, the spiral thread fastener with the self-locking function in this embodiment includes a first bolt head 1, a screw rod 2, a first workpiece 3 and a second workpiece 4, the screw rod 2 is fixedly arranged at the bottom end of the first bolt head 1, the first workpiece 3 and the second workpiece 4 are both arranged at the bottom of the first bolt head 1, the second workpiece 4 is arranged at the bottom end of the first workpiece 3, one end of the screw rod 2 penetrates through the first workpiece 3 and the second workpiece 4, the screw rod 2 is in threaded connection with the first workpiece 3 and the second workpiece 4, a thread groove 5 is formed at the top end of the first bolt head 1, a second bolt head 6 is arranged inside the thread groove 5, the outer end of the second bolt head 6 is in threaded connection with the inner wall of the thread groove 5, a movable groove 7 is formed inside the screw rod 2, a movable rod 8 is fixedly arranged at the bottom end of the second bolt head 6, 8 one ends of the movable rods penetrate through the bottom end of the first bolt head and extend into the movable groove 7, a cavity 9 is formed in the screw rod 2, the cavity 9 is formed in the bottom of the movable groove 7 and is communicated with the movable groove 7, one end of each movable rod 8 extends into the cavity 9, two movable blocks 10 are arranged at the bottom end of the cavity 9, the top end of each movable block 10 is tangent to one end of each movable rod 8, limiting fixed rods 11 are fixedly arranged on the outer sides of the movable blocks 10, and the bottom ends of the limiting fixed rods 11 are in contact with the bottom end of the cavity 9.
Further, two communicating ports 12 are formed in the outer end of the screw rod 2, and one end of the limiting fixing rod 11 extends into the communicating ports 12, so that the limiting fixing rod 11 can pass through conveniently.
Further, a sliding groove 13 is formed in the bottom end inside the cavity 9, two sliding blocks 14 are arranged inside the sliding groove 13, and the top ends of the sliding blocks 14 are fixedly connected with the bottom end of the movable block 10, so that the movable block 10 can move conveniently.
Further, a fixing rod 15 is arranged inside the sliding groove 13, one end of the fixing rod 15 penetrates through the two sliding blocks 14, and two ends of the fixing rod 15 are fixedly connected with the inner wall of the sliding groove 13, so that the sliding blocks 14 can be guided and limited conveniently.
Furthermore, a spring 16 is arranged at the outer end of the fixed rod 15, and two ends of the spring 16 are respectively fixedly connected with the inner sides of the two sliding blocks 14, so that the movable block 10 and the limiting fixed rod 11 can be conveniently reset.
Further, a gasket 17 is arranged at the outer end of the screw rod 2, the top end of the gasket 17 is in contact with the bottom end of the first bolt head 1, and the bottom end of the gasket 17 is in contact with the top end of the first workpiece 3, so that the entering length of the screw rod 2 can be conveniently adjusted, and the first workpiece 3 and the second workpiece 4 can be better fixed together.
The implementation scenario is specifically as follows: the gasket 17 is placed at the bottom end of the first bolt head 1, the first bolt head 1 and the screw rod 2 are spirally threaded through the first workpiece 3 and the second workpiece 4, after the screw rod 2 is screwed, the second bolt head 6 is rotated, because the outer end of the second bolt head 6 is in threaded connection with the inner wall of the thread groove 5, the second bolt head 6 moves downwards along with the rotation, the second bolt head 6 drives the movable rod 8 to move downwards, the movable rod 8 pushes the two movable blocks 10 to move towards two sides, the movable block 10 drives the limit fixed rod 11 and the slide block 14 to move towards two sides, the slide block 14 stretches the spring 16, the limit fixed rod 11 passes through the communication port 12 and moves to the outer end of the screw rod 2, the limit fixed rod 11 can be attached to the bottom end of the second workpiece 4 to limit the second workpiece 4, so that the position of the screw rod 2 can be locked, the whole fastener cannot loosen, and when the first bolt head 1 and the screw rod 2 are to be dismounted, the second bolt head 6 is rotated reversely, the movable rod 8 moves upwards, the movable block 10 and the limit fixed rod 11 return to the original position under the action of the elastic force of the spring 16, therefore, the screw rod 2 can be screwed out and detached, and the utility model can realize the purpose of assembling the screw rod by arranging the movable limiting fixed rod 11, the positions of the screw rod 2 and the second workpiece 4 can be locked, so that the first bolt head 1 and the screw rod 2 can firmly fix the first workpiece 3 and the second workpiece 4, the whole fastener is not easy to loosen, the fastening effect is good, the equipment is prevented from being damaged and accidents caused by loosening of the fastener, the embodiment specifically solves the problems that most of spiral thread fasteners in the prior art are limited and fixed only by threads, the fixing mode is single, the fastener can loosen after a long time, this can loosen the connection of the fasteners and even damage the equipment and create a dangerous accident.
Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.
Claims (6)
1. The utility model provides a helix thread fastener with self-locking function, includes first bolt head (1), screw rod (2), first work piece (3) and second work piece (4), fixed the establishing in first bolt head (1) bottom in screw rod (2), first work piece (3) and second work piece (4) are all established in first bolt head (1) bottom, establish in first work piece (3) bottom second work piece (4), first work piece (3) and second work piece (4) are passed to screw rod (2) one end, all through threaded connection, its characterized in that between screw rod (2) and first work piece (3) and second work piece (4): the screw thread groove (5) is formed in the top end of the first bolt head (1), the second bolt head (6) is arranged inside the screw thread groove (5), the outer end of the second bolt head (6) is connected with the inner wall of the screw thread groove (5) through threads, the movable groove (7) is formed in the screw rod (2), the movable rod (8) is fixedly arranged at the bottom end of the second bolt head (6), one end of the movable rod (8) penetrates through the bottom end of the first bolt head (1) and extends into the movable groove (7), the cavity (9) is formed in the screw rod (2), the cavity (9) is formed in the bottom of the movable groove (7) and is communicated with the interior of the movable groove (7), one end of the movable rod (8) extends into the cavity (9), the bottom end of the cavity (9) is provided with two movable blocks (10), the top end of each movable block (10) is tangent to one end of the movable rod (8), the outer side of the movable block (10) is fixedly provided with a limiting fixed rod (11), and the bottom end of the limiting fixed rod (11) is in contact with the bottom end inside the cavity (9).
2. The helical thread fastener with the self-locking function as claimed in claim 1, wherein: two communicating openings (12) are formed in the outer end of the screw rod (2), and one end of the limiting fixing rod (11) extends into the communicating openings (12).
3. The helical thread fastener with the self-locking function as claimed in claim 1, wherein: the cavity (9) is internally provided with a bottom end provided with a sliding groove (13), the sliding groove (13) is internally provided with two sliding blocks (14), and the top ends of the sliding blocks (14) are fixedly connected with the bottom end of the movable block (10).
4. A helical thread fastener with self-locking function as claimed in claim 3, wherein: the inside dead lever (15) that is equipped with of spout (13), two sliders (14) are passed to dead lever (15) one end, dead lever (15) both ends and the equal fixed connection of spout (13) inner wall.
5. The helical thread fastener with the self-locking function as claimed in claim 4, wherein: the outer end of the fixed rod (15) is provided with a spring (16), and two ends of the spring (16) are respectively fixedly connected with the inner sides of the two sliding blocks (14).
6. The helical thread fastener with the self-locking function as claimed in claim 1, wherein: the outer end of the screw rod (2) is provided with a gasket (17), the top end of the gasket (17) is in contact with the bottom end of the first bolt head (1), and the bottom end of the gasket (17) is in contact with the top end of the first workpiece (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120507749.0U CN215521505U (en) | 2021-03-10 | 2021-03-10 | Spiral thread fastener with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120507749.0U CN215521505U (en) | 2021-03-10 | 2021-03-10 | Spiral thread fastener with self-locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215521505U true CN215521505U (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120507749.0U Active CN215521505U (en) | 2021-03-10 | 2021-03-10 | Spiral thread fastener with self-locking function |
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| CN (1) | CN215521505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163636A (en) * | 2022-08-02 | 2022-10-11 | 浙江中辰城市应急服务管理有限公司 | Screw thread fastening device free of tool installation |
-
2021
- 2021-03-10 CN CN202120507749.0U patent/CN215521505U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163636A (en) * | 2022-08-02 | 2022-10-11 | 浙江中辰城市应急服务管理有限公司 | Screw thread fastening device free of tool installation |
| CN115163636B (en) * | 2022-08-02 | 2023-07-25 | 浙江中辰城市应急服务管理有限公司 | Screw thread fastener of instrument installation exempts from |
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