A splicable anti-loosening fastener
By designing a splicable anti-loosening fastener, and utilizing a splicing mechanism and limiting structure, the problem that traditional anti-loosening fasteners cannot fasten structures with high thickness is solved, and the length can be flexibly adjusted and the fastening effect is enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JIAYI HARDWARE MFG CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional anti-loosening fasteners are limited by their length and cannot penetrate two fastening plates. They also lack the ability to flexibly adjust their length through splicing, making it impossible to fasten structures with high thickness.
A splicable anti-loosening fastener was designed. The splicing mechanism includes a sleeve, a convex plate, splicing parts, and a limiting structure, which enables the connection and spiral advance of multiple splicing parts, increasing friction to tighten two fastening plates.
It achieves effective fastening of thicker structures, prevents misalignment of fastening plates, and enhances the fastening effect.
Smart Images
Figure CN224433050U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-loosening fasteners, specifically an interlocking anti-loosening fastener. Background Technology
[0002] Anti-loosening fasteners are a type of mechanical fastening element specifically designed to prevent bolts, nuts, and other fasteners from loosening on their own under conditions of vibration, impact, or temperature changes. Anti-loosening fasteners maintain the fastening force while effectively resisting loosening caused by dynamic loads.
[0003] While anti-loosening fasteners offer excellent fastening performance, traditional anti-loosening fasteners, due to their length limitations, cannot penetrate two fastening plates to secure them when faced with thicker fastening plates. They also lack the flexibility to adjust their length through splicing, making them unable to penetrate thicker structures. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, traditional anti-loosening fasteners, due to their own length limitations, cannot penetrate two fastening plates to secure them, and lack the function of flexibly adjusting the length through splicing, resulting in problems such as not being able to penetrate structures with high thickness. This utility model proposes a splicable anti-loosening fastener.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a splicable anti-loosening fastener, including a first fastening plate, a second fastening plate attached to one side of the first fastening plate, and a splicing mechanism provided on one side of the second fastening plate.
[0006] The splicing mechanism includes a sleeve, the surface of which is slidably connected to the inner cavity of the second fastening plate. One end of the sleeve is fixedly connected to a protruding plate, the surface of which is threadedly fitted to the inner wall of the second fastening plate. The inner cavity of the sleeve is threadedly connected to a splicing component, one end of which is fixedly connected to a splicing protrusion. One end of the splicing component has a splicing groove, and the surface of the splicing protrusion is threadedly connected to the inner wall of the splicing groove.
[0007] Preferably, the sleeve is threadedly connected to a pressure ring, one side of which is attached to one side of the second fastening plate, and a handle is fixedly connected to the surface of the pressure ring.
[0008] Preferably, one end of the sleeve is fixedly connected to a limiting plate, and the inner cavity of the limiting plate is rotatably connected to the surface of the splicing component.
[0009] Preferably, one end of the splicing component has a slot, and a locking block is fixedly connected to one end of the splicing component, with the surface of the locking block conforming to the inner wall of the slot.
[0010] Preferably, the inner wall of the first fastening plate is fitted with a limiting cylinder, and the inner cavity of the limiting cylinder is threadedly connected to the surface of the splice.
[0011] Preferably, the surface of the limiting cylinder is provided with a part groove, the inner wall of the part groove is fixedly connected to a positioning shaft, the surface of the positioning shaft is rotatably connected to a clamping plate, and one side of the clamping plate is slidably connected to the inner wall of the part groove.
[0012] Preferably, an elastic pad is fixedly connected to one side of the card plate, and one side of the elastic pad is attached to the inner wall of the slot.
[0013] The advantages of this utility model are:
[0014] This invention employs a splicing mechanism. The first and second fastening plates have through holes. When clamping and fixing the first and second fastening plates, a protruding plate and a sleeve are inserted into the through hole of the second fastening plate. Then, a splicing component is inserted into the inner cavity of the sleeve and rotated, causing the surface of the splicing component to threadedly connect with the inner cavity of the sleeve and move axially along the sleeve. As the sleeve moves axially, the splicing component supports the protruding plate, causing it to adhere to the inner wall of the second fastening plate, thereby increasing the friction between the protruding plate and the second fastening plate. As the splicing component gradually penetrates deeper into the through hole, the length of a single splicing component increases. If the length is insufficient to penetrate the first and second fastening plates, insert the splicing protrusions of other splicing components into the splicing grooves of the previous splicing component. Then rotate the newly inserted splicing component, and the splicing protrusions will spiral forward in the splicing grooves until the splicing protrusions touch the bottom. The new splicing component continues to rotate, thereby driving the previous splicing components to spiral forward in the sleeve, achieving the effect of connecting multiple splicing components. This solves the problems of traditional anti-loosening fasteners, which are limited by their own length and cannot penetrate two fastening plates to fasten them, lack the function of flexibly adjusting the length through splicing, and thus cannot penetrate structures with higher thickness. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;
[0017] Figure 2 This is a three-dimensional schematic diagram of the interior of this utility model;
[0018] Figure 3 This is a three-dimensional schematic diagram of the splicing mechanism of this utility model;
[0019] Figure 4 This is a three-dimensional schematic diagram of the splicing component of this utility model;
[0020] Figure 5 This is a three-dimensional schematic diagram of the limiting cylinder of this utility model.
[0021] In the diagram: 1. First fastening plate; 2. Second fastening plate; 3. Splicing mechanism; 301. Sleeve; 302. Protruding plate; 303. Splicing component; 304. Splicing protrusion; 305. Splicing groove; 4. Pressure ring; 5. Handle; 6. Limiting plate; 7. Slot; 8. Block; 9. Limiting cylinder; 10. Part slot; 11. Positioning shaft; 12. Clamping plate; 13. Elastic pad. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0024] This application discloses a splicable anti-loosening fastener. (Refer to...) Figures 1 to 4 A splicable anti-loosening fastener includes a first fastening plate 1, a second fastening plate 2 attached to one side of the first fastening plate 1, and a splicing mechanism 3 provided on one side of the second fastening plate 2.
[0025] The splicing mechanism 3 includes a sleeve 301, the surface of which is slidably connected to the inner cavity of the second fastening plate 2. A protruding plate 302 is fixedly connected to one end of the sleeve 301, and the surface of the protruding plate 302 is threadedly fitted to the inner wall of the second fastening plate 2. A splicing component 303 is threadedly connected to the inner cavity of the sleeve 301. A splicing protrusion 304 is fixedly connected to one end of the splicing component 303, and a splicing groove 305 is formed at one end of the splicing component 303. The surface thread is connected to the inner wall of the splicing groove 305. By setting the splicing mechanism 3, the first fastening plate 1 and the second fastening plate 2 have through holes. When it is necessary to clamp and fix the first fastening plate 1 and the second fastening plate 2, the protruding plate 302 and the sleeve 301 are inserted into the through hole of the second fastening plate 2. Then, the splicing piece 303 is inserted into the inner cavity of the sleeve 301 and the splicing piece 303 is rotated so that the surface of the splicing piece 303 is threaded with the inner cavity of the sleeve 301. The splice 303 is connected and moves axially along the sleeve 301. As the sleeve 301 moves axially, the splice 303 supports the convex plate 302, causing the convex plate 302 to fit against the inner wall of the second fastening plate 2, thereby increasing the friction between the convex plate 302 and the second fastening plate 2. As the splice 303 gradually penetrates into the through hole, the length of a single splice 303 is insufficient to penetrate the first fastening plate 1 and the second fastening plate 2. The splicing protrusions 304 of other splice 303 are inserted into the splicing grooves 305 of the previous splice 303. Then, the newly inserted splice 303 is rotated, and the splicing protrusions 304 will spiral forward in the splicing grooves 305 until the splicing protrusions 304 touch the bottom. The new splice 303 continues to rotate, thereby driving the previous splice 303 to spiral forward in the sleeve 301. This achieves the use of multiple splice 303 connected together to penetrate the through hole and prevents the first fastening plate 1 and the second fastening plate 2 from misaligning.
[0026] Reference Figure 3 The sleeve 301 is threadedly connected to a pressure ring 4. One side of the pressure ring 4 is attached to one side of the second fastening plate 2. A handle 5 is fixedly connected to the surface of the pressure ring 4. By setting the pressure ring 4, since one side of the pressure ring 4 is attached to one side of the second fastening plate 2 and threadedly connected to the sleeve 301, the pressure ring 4 can limit the sleeve 301 and prevent the sleeve 301 from moving as the splice 303 rotates, so that the splice 303 can move relative to the sleeve 301. By rotating the handle 5, the position of the pressure ring 4 on the sleeve 301 can be adjusted, thereby changing the degree to which the sleeve 301 penetrates into the through hole.
[0027] Reference Figure 3 One end of the sleeve 301 is fixedly connected to a limiting plate 6. The inner cavity of the limiting plate 6 is rotatably connected to the surface of the splice 303. By setting the limiting plate 6, the limiting plate 6 can limit the pressure ring 4 and prevent the pressure ring 4 from detaching from the sleeve 301 when rotating.
[0028] Reference Figure 4One end of the splicing component 303 is provided with a slot 7, and a locking block 8 is fixedly connected to one end of the splicing component 303. The surface of the locking block 8 is in contact with the inner wall of the slot 7. By setting the locking block 8 and the slot 7, when two splicing components 303 are spliced, the locking block 8 of one splicing component 303 will engage with the slot 7 of the other splicing component 303, thereby improving the stability of the connection between the splicing components 303.
[0029] Reference Figure 5 The inner wall of the first fastening plate 1 is fitted with a limiting cylinder 9. The inner cavity of the limiting cylinder 9 is threadedly connected to the surface of the splice 303. By setting the limiting cylinder 9, when the splice 303 passes through the through hole and extends out, the limiting cylinder 9 can be threadedly connected to the splice 303 and the limiting cylinder 9 can limit the splice 303 at the other end of the through hole.
[0030] Reference Figure 5 The surface of the limiting cylinder 9 is provided with a part groove 10. The inner wall of the part groove 10 is fixedly connected to a positioning shaft 11. The surface of the positioning shaft 11 is rotatably connected to a clamping plate 12. One side of the clamping plate 12 is slidably connected to the inner wall of the part groove 10. By setting the clamping plate 12, when the clamping plate 12 extends out of the part groove 10, the clamping plate 12 can limit the limiting cylinder 9, preventing the limiting cylinder 9 from moving into the through hole. This allows the clamping plate 12 to apply pressure to the first fastening plate 1, and together with the pressure ring 4 at the other end of the through hole, clamp the first fastening plate 1 and the second fastening plate 2, preventing the first fastening plate 1 and the second fastening plate 2 from moving axially.
[0031] Reference Figure 5 An elastic pad 13 is fixedly connected to one side of the clamping plate 12. One side of the elastic pad 13 is attached to the inner wall of the slot 10. By setting the elastic pad 13, the elastic pad 13 can undergo elastic deformation. Thus, when the clamping plate 12 is pressed against the first fastening plate 1, the elastic pad 13 can buffer the reaction force on the clamping plate 12, thereby avoiding damage.
[0032] Working principle: The first fastening plate 1 and the second fastening plate 2 have through holes. When it is necessary to clamp and fix the first fastening plate 1 and the second fastening plate 2, the protruding plate 302 and the sleeve 301 are inserted into the through hole of the second fastening plate 2. By rotating the pressure ring 4 with the handle 5, the depth of the sleeve 301 into the through hole is adjusted. Then, the splicing piece 303 is inserted into the inner cavity of the sleeve 301 and rotated so that the surface of the splicing piece 303 is threadedly connected to the inner cavity of the sleeve 301 and moves axially along the sleeve 301. As the sleeve 301 moves axially, the splicing piece 303 will support the protruding plate 302, so that the protruding plate 302 is attached to the inner wall of the second fastening plate 2, thereby increasing the friction between the protruding plate 302 and the second fastening plate 2. As the splicing piece 303 gradually penetrates into the through hole, the length of a single splicing piece 303 is insufficient to penetrate the first fastening plate 2. For the first fastening plate 1 and the second fastening plate 2, insert the splicing protrusion 304 of the other splicing piece 303 into the splicing groove 305 of the previous splicing piece 303, and then rotate the newly inserted splicing piece 303. The splicing protrusion 304 will spiral forward in the splicing groove 305 until the splicing protrusion 304 touches the bottom. The new splicing piece 303 continues to rotate, thereby driving the previous splicing piece 303 to spiral forward in the sleeve 301. When the splicing piece 303 passes through the through hole and extends out, extend the clamping plate 12 from the part groove 10 and thread the limiting cylinder 9 to the splicing piece 303. As the limiting cylinder 9 moves spirally along the splicing piece 303, the clamping plate 12 is attached to one side of the first fastening plate 1, so that the clamping plate 12 and the pressure ring 4 at the other end of the through hole clamp the first fastening plate 1 and the second fastening plate 2 together, preventing the first fastening plate 1 and the second fastening plate 2 from moving axially.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A splicable anti-loosening fastener, characterized in that: It includes a first fastening plate (1), a second fastening plate (2) is attached to one side of the first fastening plate (1), and a splicing mechanism (3) is provided on one side of the second fastening plate (2). The splicing mechanism (3) includes a sleeve (301), the surface of which is slidably connected to the inner cavity of the second fastening plate (2), one end of which is fixedly connected to a protrusion plate (302), the surface of which is threadedly attached to the inner wall of the second fastening plate (2), the inner cavity of the sleeve (301) is threadedly connected to a splicing component (303), one end of which is fixedly connected to a splicing protrusion (304), one end of which is provided with a splicing groove (305), the surface of which is threadedly connected to the inner wall of the splicing groove (305).
2. The splicable anti-loosening fastener according to claim 1, characterized in that: The sleeve (301) is threaded with a pressure ring (4), one side of the pressure ring (4) is attached to one side of the second fastening plate (2), and a handle (5) is fixedly connected to the surface of the pressure ring (4).
3. The splicable anti-loosening fastener according to claim 1, characterized in that: One end of the sleeve (301) is fixedly connected to a limiting plate (6), and the inner cavity of the limiting plate (6) is rotatably connected to the surface of the splice (303).
4. The splicable anti-loosening fastener according to claim 1, characterized in that: One end of the splicing component (303) is provided with a slot (7), and a card block (8) is fixedly connected to one end of the splicing component (303). The surface of the card block (8) is attached to the inner wall of the slot (7).
5. The splicable anti-loosening fastener according to claim 1, characterized in that: The inner wall of the first fastening plate (1) is fitted with a limiting cylinder (9), and the inner cavity of the limiting cylinder (9) is threadedly connected to the surface of the splice (303).
6. A splicable anti-loosening fastener according to claim 5, characterized in that: The surface of the limiting cylinder (9) is provided with a part groove (10), and the inner wall of the part groove (10) is fixedly connected to a positioning shaft (11). The surface of the positioning shaft (11) is rotatably connected to a clamping plate (12), and one side of the clamping plate (12) is slidably connected to the inner wall of the part groove (10).
7. A splicable anti-loosening fastener according to claim 6, characterized in that: An elastic pad (13) is fixedly connected to one side of the card plate (12), and one side of the elastic pad (13) is attached to the inner wall of the slot (10).