Anti-falling fastener with high stability
By designing a combined structure of studs, nuts and gaskets, the expansion of the annular channel and inclined plates increases the contact area, solving the problem of small contact area of existing fasteners, achieving higher tightening effect and anti-falling performance.
Patent Information
- Application Number
- CN202422434677.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-10-08
AI Technical Summary
When used in existing fasteners, the contact area between the nut and the material to be fastened is small, resulting in poor tightening effect.
An anti-fall fastener including studs, nuts, gaskets and extension components is designed. Through the mating movement of the nuts and gaskets, the annular channel and inclined plate are deployed to increase the contact area with the material to be fastened and improve the fastening effect.
By increasing the contact area between the nut and the material to be fastened, the stability and anti-falling performance of the fastener are significantly improved.
Smart Images
Figure CN223049209U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of fasteners, and particularly relates to an anti-dropping fastener with high stability. Background Art
[0002] Fasteners are components used to connect and fix various parts in mechanical equipment. They usually consist of bolts, nuts, gaskets, pins, etc., and are widely used in various mechanical equipment. They are the general term for a class of mechanical parts used to firmly connect two or more parts (or components) into a whole.
[0003] The existing fasteners still have the following problems when in use: The existing fasteners only rely on the threaded connection between the nut and the stud to achieve the firm connection of two materials to be fastened (such as two wooden boards) when in use. However, the outer diameter of the nut is relatively small, resulting in a small contact area between the nut and the material to be fastened, and thus the overall fastening effect is poor.
[0004] Therefore, it is necessary to invent an anti-dropping fastener with high stability to solve the above problems. Summary of the Utility Model
[0005] The purpose of the utility model is to provide an anti-dropping fastener with high stability to solve the problem that the existing fasteners only rely on the threaded connection between the nut and the stud to achieve the firm connection of two materials to be fastened (such as two wooden boards) when in use. However, the outer diameter of the nut is relatively small, resulting in a small contact area between the nut and the material to be fastened, and thus the overall fastening effect is poor as mentioned in the above background art.
[0006] To achieve the above purpose, the utility model provides the following technical solution: An anti-dropping fastener with high stability, including a stud body, a nut is threadedly connected to the outer circle of the stud body, a gasket is movably sleeved on the outer circle of the stud body, a through hole is arranged inside the gasket, the stud body penetrates through the through hole, an annular groove is arranged inside the gasket, the annular groove is communicated with the through hole, an annular block is movably connected inside the annular groove, and further includes:
[0007] A limiting component, a notch one is arranged inside the annular block, a fixing rod one is fixedly connected to the inner wall of the notch one, a blocking block is movably sleeved on the outer circle of the fixing rod one, and the blocking block moves inside a moving groove arranged inside the stud body;
[0008] An extension component, notches two are arranged inside both the nut and the gasket, fixing rods two are fixedly connected to the inner walls of the notches two, inclined plates are movably sleeved on the outer circles of the fixing rods two, an intermediate block is movably arranged between the nut and the gasket, a notch three is arranged inside the intermediate block, and a fixing rod two is also fixedly connected to the inner wall of the notch three.
[0009] Preferably, the annular block extends into the through hole, and the inner circle of the annular block is in contact with and slidably connected to the outer wall of the screw of the screw body, so as to ensure smooth movement of the gasket on the outer circle of the screw.
[0010] Preferably, there are two notches 1, and the two notches 1 are symmetrically arranged left and right with reference to the central axis of the annular block, and the notch 1 is arranged in the body block of the annular block inside the through hole.
[0011] Preferably, a torsion spring is movably sleeved on the outer circle of the fixing rod 1, and the two ends of the torsion spring are respectively fixedly connected to the inner wall of the notch 1 and the stopper. The force applied by the torsion spring makes the stopper Figure 3 in the state shown in []. In this way, while ensuring the movable connection between the gasket and the screw body, it is not easy to fall off.
[0012] Preferably, the positions of the notch 2 on the nut and the gasket correspond to each other, and an inclined plate in a horizontal "V" shape is rotatably connected inside the two notches 2 on the same side of the nut and the gasket, ensuring smooth movement of the inclined plate and facilitating the subsequent unfolding movement of each group of inclined plates.
[0013] Preferably, torsion springs are movably sleeved on the outer circles of the fixing rods 2, and the two ends of each torsion spring are respectively fixedly connected to the inclined plate sleeved on the outer circle of the fixing rod 2 and the inner wall of the notch 2 or notch 3 where the inclined plate is located, ensuring that the inclined plate is in the Figure 5 state shown in [].
[0014] Preferably, there are two intermediate blocks, and the two intermediate blocks are symmetrically arranged with reference to the central axes of the nut and the gasket bodies. The tops and bottoms of the two intermediate blocks are provided with notches 3 with three open sides. In this way, when the nut is twisted, the extension assembly is synchronously deformed until the two inclined plates in the extension assembly are in contact with the material to be fastened and are in the Figure 2 state shown in [], making the fastening effect of the entire fastener better.
[0015] In the above technical solution, the technical effects and advantages provided by the present utility model are:
[0016] The present utility model drives the nut and the gasket to move on the screw body by twisting the nut. The threaded connection between the nut and the screw body ensures the stability of the extension assembly movably connected to both sides of the nut on the outer circle of the screw body. At the same time, when the top of the gasket contacts the surface of the material to be fastened, the nut is continuously twisted, and the nut rotates upward and gradually contacts the gasket. At this time, each group of inclined plates gradually move towards each other until they reach the Figure 2 state shown in [], so that the extension assembly is unfolded and the subsequent use effect of the entire screw body is better. Brief Description of the Drawings
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.
[0018] Figure 1 It is a three-dimensional view of the overall structure of the present utility model;
[0019] Figure 2 It is a three-dimensional view of the overall structure of the extension assembly of the present utility model in the unfolded state;
[0020] Figure 3 It is an exploded view of the overall structure of the present utility model;
[0021] Figure 4 It is an exploded view of the internal structure of the gasket (partially sectioned state) of the present utility model;
[0022] Figure 5 It is an exploded view of the connection structure between the gasket and the nut of the present utility model.
[0023] Description of the Reference Numerals:
[0024] 1. Stud body; 2. Nut; 3. Gasket; 4. Through hole; 5. Annular groove; 6. Annular block; 7. Limiting component; 701. Movable groove; 702. First notch; 703. First fixing rod; 704. Block; 8. Extension component; 801. Second notch; 802. Second fixing rod; 803. Inclined plate; 804. Intermediate block; 805. Third notch. Detailed Embodiments
[0025] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail with reference to the drawings.
[0026] The present utility model provides a highly stable anti-detachment fastener as shown in Figures 1-5 below, including a stud body 1, a nut 2 is threadedly connected to the outer circle of the stud body 1, a gasket 3 is movably sleeved on the outer circle of the stud body 1, a through hole 4 is provided inside the gasket 3, the stud body 1 penetrates through the through hole 4, an annular groove 5 is formed inside the gasket 3, the annular groove 5 is communicated with the through hole 4, an annular block 6 is movably connected inside the annular groove 5, and further includes:
[0027] Limiting component 7, a first notch 702 is formed inside the annular block 6, a first fixing rod 703 is fixedly connected to the inner wall of the first notch 702, a stopper 704 is movably sleeved on the outer circle of the first fixing rod 703, and the stopper 704 moves inside the moving slot 701 provided inside the stud body 1;
[0028] Extension component 8, a second notch 801 is provided inside each of the nut 2 and the gasket 3, a second fixing rod 802 is fixedly connected to the inner wall of each second notch 801, an inclined plate 803 is movably sleeved on the outer circle of each second fixing rod 802, an intermediate block 804 is movably provided between the nut 2 and the gasket 3, a third notch 805 is formed inside the intermediate block 804, and a second fixing rod 802 is also fixedly connected to the inner wall of the third notch 805.
[0029] The annular block 6 extends into the through hole 4, and the inner circle of the annular block 6 is in contact with the outer wall of the screw rod of the stud body 1 and realizes a sliding connection, so as to ensure the smooth movement of the gasket 3 on the outer circle of the screw rod.
[0030] There are two first notches 702 in terms of quantity, and the two first notches 702 are symmetrically arranged left and right with reference to the central axis of the annular block 6, and the first notches 702 are provided in the body block of the annular block 6 located inside the through hole 4.
[0031] A torsion spring is movably sleeved on the outer circle of the first fixing rod 703, and the two ends of the torsion spring are respectively fixedly connected to the inner wall of the first notch 702 and the stopper 704, and the force exerted by the torsion spring makes the stopper 704 in the Figure 3 state shown in the figure, so as to ensure that the gasket 3 is movably connected to the stud body 1 and is not easily detached.
[0032] The positions of the second notches 801 on the nut 2 and the gasket 3 correspond to each other, and a horizontally "V"-shaped inclined plate 803 is rotatably connected inside the two second notches 801 on the same side of the nut 2 and the gasket 3, ensuring the smooth movement of the inclined plate 803 and facilitating the subsequent unfolding movement of each group of inclined plates 803.
[0033] A torsion spring is movably sleeved on the outer circle of each second fixing rod 802, and the two ends of the torsion spring are respectively fixedly connected to the inclined plate 803 sleeved on the outer circle of the second fixing rod 802 and the inner wall of the second notch 801 or the third notch 805 where the inclined plate 803 is located, ensuring that the inclined plate 803 is in the Figure 5 state shown in the figure in the initial state, facilitating the subsequent rotation of the nut 2 until the two inclined plates 803 in the extension component 8 are completely unfolded, and improving the applicable firmness of the fastener.
[0034] There are two middle blocks 804 in number, and the two middle blocks 804 are symmetrically arranged with reference to the central axis of the two-body blocks of the nut 2 and the gasket 3. Moreover, notches three 805 with three open sides are provided at the top and bottom of the two middle blocks 804. In this way, when the nut 2 is twisted, the extension assembly 8 is synchronously driven to deform until the two inclined plates 803 in the extension assembly 8 come into contact with the material to be fastened and then present the Figure 2 state shown in Figure 2 , making the fastening effect of the entire fastener better.
[0035] Working principle: When using a highly stable anti-dropping fastener, first, the twisting nut 2 drives the nut 2 and the gasket 3 to move on the stud body 1. The movement of the nut 2 drives the gasket 3 that is supported and connected by the inclined plates 803 arranged in the extension assembly 8 until the top of the gasket 3 comes into contact with the surface of the material to be fastened. Then, the nut 2 is continuously twisted. At this time, the top of the gasket 3 is blocked by the material and cannot move. Twisting the nut 2 only drives the nut 2 to move towards the direction where the gasket 3 is located. At this time, the two inclined plates 803 arranged in a horizontal "V" shape in each group gradually move towards each other until they reach the Figure 2 state shown in Figure 2 . In this way, the extension assembly 8 is unfolded, making the subsequent use effect of the entire stud body 1 better. When the gasket 3 rotates synchronously with the nut 2, the movable connection between the gasket 3 and the stud body 1 ensures that the stud body 1 does not affect the movement effect of the gasket 3.
[0036] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.
Claims
1. A highly stable anti-falling fastener, comprising a stud body (1), characterized in that: The outer ring of the stud body (1) is threadedly connected with a nut (2), the outer ring of the stud body (1) is movably sleeved with a gasket (3), a through hole (4) is arranged inside the gasket (3), the stud body (1) passes through the through hole (4), an annular groove (5) is opened inside the gasket (3), the annular groove (5) is connected with the through hole (4), and an annular block (6) is movably connected inside the annular groove (5), and further comprises: A limiting component (7), wherein a notch (702) is provided inside the annular block (6), a fixing rod (703) is fixedly connected to the inner wall of the notch (702), a stopper (704) is movably sleeved on the outer ring of the fixing rod (703), and the stopper (704) moves inside a movable groove (701) provided inside the stud body (1); An extension assembly (8), wherein the nut (2) and the gasket (3) are both provided with a second notch (801), the inner wall of the second notch (801) is fixedly connected to a second fixing rod (802), the outer ring of the second fixing rod (802) is movably mounted with an inclined plate (803), an intermediate block (804) is movably arranged between the nut (2) and the gasket (3), a third notch (805) is provided inside the intermediate block (804), and the inner wall of the third notch (805) is also fixedly connected to the second fixing rod (802).
2. The anti-falling fastener with high stability according to claim 1, characterized in that: The annular block (6) extends to the inside of the through hole (4), and the inner ring of the annular block (6) is in contact with the outer wall of the screw of the stud body (1) to achieve sliding connection.
3. The anti-falling fastener with high stability according to claim 1, characterized in that: The notch 1 (702) is provided at two locations, and the two notches 1 (702) are symmetrically arranged with reference to the central axis of the annular block (6) as the symmetry axis. The notch 1 (702) is arranged in the body of the annular block (6) located inside the through hole (4).
4. The anti-falling fastener with high stability according to claim 1, characterized in that: The outer ring of the fixing rod 1 (703) is movably sleeved with a torsion spring, and the two ends of the torsion spring are respectively fixedly connected to the inner wall of the notch 1 (702) and the stopper (704).
5. The anti-falling fastener with high stability according to claim 1, characterized in that: The positions of the second notch (801) on the nut (2) and the gasket (3) correspond to each other, and a lateral "V"-shaped inclined plate (803) is rotatably connected inside the two second notches (801) on the same side of the nut (2) and the gasket (3).
6. The anti-falling fastener with high stability according to claim 1, characterized in that: The outer ring of the second fixing rod (802) is movably sleeved with a torsion spring, and the two ends of the torsion spring are respectively fixedly connected to the inclined plate (803) sleeved on the outer ring of the second fixing rod (802) and the inner wall of the notch 2 (801) or the notch 3 (805) where the inclined plate (803) is located.
7. The anti-falling fastener with high stability according to claim 1, characterized in that: The intermediate blocks (804) are provided in two pieces in number, and the two intermediate blocks (804) are symmetrically arranged with reference to the central axis of the two blocks of the nut (2) and the gasket (3) as the symmetry axis, and the tops and bottoms of the two intermediate blocks (804) are both provided with three open-sided notches (805).