Drop-resistant security screw

Abstract

The utility model discloses a fall -resistant glue locking screw relates to the field of ski binding, fall -resistant glue locking screw, including screw rod, nut and fall -resistant glue, and fall -resistant glue and the thread of screw rod constitute the composite thread surface together, through being provided with two point gum point on screw rod, two point gum points 180 degrees symmetry distribution, the fall -resistant glue of heating melting is injected or pressed into the hole under high pressure, and when fall -resistant glue cooling contracts and is fixed in the hole, and fall -resistant glue forms the composite thread surface with screw rod, and the fall -resistant glue that fills will slightly protrude from the thread surface, owing to the nylon material quality has high ductility, toughness and recovery elasticity, when screw rod and nut are combined, the fall -resistant glue protruding from the thread surface is extruded deformation, utilize the huge material ductility of fall -resistant glue, fill the thread meshing gap, and produce the rebound tension of screw nut continuously, and this mechanism makes the fall -resistant glue bite tightly matched nut and play the locking effect, and it is not easy to loosen after locking.

Description

Technical Field

[0001] This utility model relates to the field of ski bindings, and in particular to anti-loosening screws with anti-loosening properties. Background Technology

[0002] The reliability of the connection between the ski bindings and the skis is crucial. If the bindings become loose due to vibration during skiing, it will not only affect the athlete's precise control of the skis, but may also cause the bindings to fall off unexpectedly, resulting in serious sports injuries.

[0003] Currently, screws used to tighten ski bindings mostly use metal materials with traditional anti-loosening methods such as spring washers. However, when skis are used for a long time, the bindings are subjected to irregular forces for extended periods. Traditional anti-loosening components are prone to failure under continuous high-frequency vibration, resulting in a decrease in preload and insufficient reliability of anti-loosening.

[0004] In view of the shortcomings of the existing technology, this utility model provides a non-loosening screw that is resistant to adhesive loss, so as to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide anti-loosening screws resistant to adhesive loss, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a non-loosening screw with a rubber lining, comprising a screw rod and a nut, wherein one end of the screw rod and the nut are integrally formed, and the screw rod is fixedly connected with a rubber lining. The threads of the rubber lining and the screw rod together form a composite thread surface. The outer wall threads of the screw rod and the rubber lining are connected to a matching retainer groove nut. After the screw rod passes through the retainer groove nut and the mounting hole on the ski in sequence, it is tightened to make the composite thread surface engage with the internal threads of the retainer groove nut and the mounting hole on the ski, thereby locking the retainer onto the ski.

[0007] Preferably, the nut has a cross groove.

[0008] Preferably, two adhesive dots are provided on the thread of the screw, and the two adhesive dots are symmetrically distributed about the central axis of the screw, with an included angle of 180 degrees.

[0009] Preferably, the retainer groove nut includes a contact portion and a connecting portion, and a threaded through hole is formed in the middle of the retainer groove nut. The screw is screwed into the threaded through hole from the connecting portion end and screwed out from the contact portion end.

[0010] Preferably, the length of the screw is greater than the length of the threaded through hole.

[0011] Preferably, the screw and nut are made of stainless steel, and the outer surfaces of the screw and nut are coated with an anti-corrosion coating by electrophoretic coating.

[0012] The technical effects and advantages of this utility model are as follows: 1. By setting two dispensing points on the screw, symmetrically distributed at 180 degrees, the heated and melted nylon adhesive is injected or pressed into the hole under high pressure. After the nylon adhesive cools and shrinks, it is fixed in the hole. The nylon adhesive and the screw form a composite thread surface. The filled nylon adhesive will protrude slightly from the thread surface. Due to the high ductility, toughness and resilience of nylon material, when the screw and nut are screwed together, the nylon adhesive protruding from the thread surface is squeezed and deformed. Utilizing the huge material ductility of nylon adhesive, it fills the thread meshing gap and generates a continuous rebound tension on the nut. This mechanism makes the nylon adhesive bite the matching nut to play an anti-loosening role, and it is not easy to loosen after locking. 2. By applying electrophoretic coating to stainless steel, its corrosion resistance is greatly improved. The electrophoretic layer on the stainless steel effectively isolates the stainless steel substrate from external corrosive media such as humid air, snow water, and de-icing salt. It is suitable for harsh and humid environments such as skiing, has extremely strong corrosion resistance, greatly extends the service life of the product, and ensures that the screws can still be easily disassembled even after long-term use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the inlay groove structure of this utility model; Figure 3 This is a schematic diagram of the nut structure of this utility model; Figure 4 This is a schematic diagram of the groove nut structure of the fixing device of this utility model.

[0014] In the diagram: 1. Screw; 2. Nut; 21. Cross groove; 3. Adhesive; 4. Contact part; 41. Connecting part; 42. Threaded through hole. Detailed Implementation

[0015] 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 protection scope of the present utility model.

[0016] This utility model provides, for example Figures 1-4The anti-loosening screw shown includes a screw rod 1 and a nut 2. One end of the screw rod 1 and the nut 2 are integrally formed. The screw rod 1 is fixedly connected to an anti-loosening screw 3. The threads of the anti-loosening screw 3 and the screw rod 1 together form a composite thread surface. The outer wall threads of the screw rod 1 and the anti-loosening screw 3 are connected to a matching retainer groove nut. After the screw rod 1 passes through the retainer groove nut and the mounting hole on the ski in sequence, it is tightened to make the composite thread surface engage with the internal threads of the retainer groove nut and the ski mounting hole, thereby locking the retainer onto the ski.

[0017] By fixing the nylon 3 to the screw 1, since the nylon 3 is mainly composed of nylon material, which has high ductility, toughness and resilience, when the screw 1 is screwed into the nut, the nylon 3 protruding from the thread surface is squeezed and deformed. Utilizing the huge material ductility of the nylon 3, it fills the thread meshing gap and generates a continuous rebound tension on the nut. This mechanism enables the nylon 3 to bite the matching nut and play an anti-loosening role, and it is not easy to loosen after locking.

[0018] The nut 2 has a cross groove 21.

[0019] Example 1: Two adhesive dots are provided on the thread of screw 1. The two adhesive dots are symmetrically distributed about the central axis of screw 1, with an included angle of 180 degrees.

[0020] The two symmetrical points of the rubber 3 form a pair of force couples. The frictional forces they generate are equal in magnitude and opposite in direction. This pair of force couples will cancel out the lateral component force generated by the other, leaving only a uniform clamping force pointing towards the center, ensuring that the force at both ends is uniform.

[0021] Two dispensing points are set on the screw 1, and the two dispensing points are symmetrically distributed at 180 degrees. The heated and melted PVC adhesive 3 is injected or pressed into the hole under high pressure. When the PVC adhesive 3 cools and shrinks, it is fixed in the hole. The PVC adhesive 3 and the screw 1 form a composite thread surface. The filled PVC adhesive 3 will protrude slightly from the thread surface, thus completing the fixation of the PVC adhesive 3 and the screw 1.

[0022] The retainer slide nut includes a contact part 4 and a connecting part 41. A threaded through hole 42 is opened in the middle of the retainer slide nut. The screw 1 is screwed into the threaded through hole 42 from the end of the connecting part 41 and screwed out from the end of the contact part 4.

[0023] The length of screw 1 is greater than the length of threaded through hole 42.

[0024] The screw 1 is threaded into the threaded through hole 42 and is screwed in further until its end is screwed into the mounting hole on the ski. When the screw 1 is threaded into the mounting hole on the ski and screwed in, the nut 2 contacts the binding groove nut, locking the ski binding onto the ski.

[0025] Example 2: The screw 1 and nut 2 are made of stainless steel, and the outer surfaces of the screw 1 and nut 2 are coated with an anti-corrosion coating by electrophoretic coating.

[0026] Electrophoretic coating of stainless steel enhances its corrosion resistance. The electrophoretic layer effectively isolates the stainless steel substrate from corrosive media such as humid air, snow water, and de-icing salt, making it suitable for harsh and humid environments such as skiing. It has extremely strong corrosion resistance, significantly extending the product's service life and ensuring that screws can still be easily disassembled even after long-term use.

[0027] Furthermore, since electrophoretic coating is an adsorption process that applies electricity, it can uniformly coat the complex structures and grooves on screw 1 and nut 2.

[0028] Working principle: Place the binding accurately on the designated installation position on the ski, and correctly insert the binding groove nut into the groove at the bottom of the binding, so that the threaded through hole 42 on it is aligned with the mounting hole on the ski. Align one end of the screw 1 vertically with the connecting part 41 of the retainer slide nut and screw it into the threaded through hole 42. When screwing it in initially, ensure that the threads are aligned and avoid twisting and damaging the threads.

[0029] As screw 1 continues to be screwed in, after its front thread enters the ski mounting hole, a significant increase in tightening torque is felt. At this time, the anti-roll rubber 3 fixed on screw 1 begins to mesh tightly with the nut and the internal thread of the mounting hole, generating a squeezing and damping effect.

[0030] Using a Phillips screwdriver, apply continuous and even force to tighten the screw to the designed torque. When the bottom of nut 2 is tightly fitted with the groove nut of the retainer and there is no looseness or shaking, it means that it is locked in place. After installation, check whether the retainer is stable and does not wobble to complete the installation.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Anti-loosening screws with anti-loosening adhesive, characterized in that, The device includes a screw (1) and a nut (2), with one end of the screw (1) and the nut (2) integrally formed. The screw (1) is fixedly connected to a rubber sealant (3), and the threads of the rubber sealant (3) and the screw (1) together form a composite thread surface. The outer wall threads of the screw (1) and the rubber sealant (3) are connected to a matching retainer groove nut. After the screw (1) passes through the retainer groove nut and the mounting hole on the ski in sequence, it is tightened to make the composite thread surface engage with the internal threads of the retainer groove nut and the mounting hole on the ski, thereby locking the retainer onto the ski.

2. The anti-loosening screw with anti-loosening adhesive according to claim 1, characterized in that, The nut (2) has a cross groove (21).

3. The anti-loosening screw with anti-loosening adhesive according to claim 1, characterized in that, Two glue dots are provided on the thread of the screw (1). The two glue dots are symmetrically distributed about the central axis of the screw (1) with an included angle of 180 degrees.

4. The anti-loosening screw with anti-loosening adhesive according to claim 1, characterized in that, The retainer groove nut includes a contact part (4) and a connecting part (41). A threaded through hole (42) is opened in the middle of the retainer groove nut. The screw (1) is screwed into the threaded through hole (42) from the end of the connecting part (41) and screwed out from the end of the contact part (4).

5. The anti-loosening screw with anti-loosening adhesive according to claim 4, characterized in that, The length of the screw (1) is greater than the length of the threaded through hole (42).

6. The anti-loosening screw with anti-loosening adhesive according to claim 1, characterized in that, The screw (1) and nut (2) are made of stainless steel, and the outer surfaces of the screw (1) and nut (2) are coated with an anti-corrosion coating by electrophoretic coating.

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