Fastener for high-strength screw

Abstract

The utility model relates to the field of fasteners, in particular to a fastener for a high-strength screw. The looseness reminding device comprises a looseness reminding fastening assembly arranged on a screw, the looseness reminding fastening assembly comprises a fastening shell, a main core screw part is movably arranged in the fastening shell, and the main core screw part is arranged on the screw in a threaded mode. In the installation process, the structural design of all the components enables the operation process to be clear, simple and convenient, an operator can easily assemble the main core screw part on the screw by manually pressing the guide push rod and utilizing the cooperation of the spring, the push plate and the clamping plate, complex tools and professional skills are not needed in the whole process, the installation difficulty and time cost are reduced, and the installation efficiency is improved. And the mounting efficiency is improved, and the advantages are particularly obvious in large-scale assembly operation.

Description

Technical Field

[0001] This utility model relates to the field of fasteners, and more particularly to a fastener for high-strength screws. Background Technology

[0002] In many fields such as industrial production, mechanical equipment assembly, and various construction projects, screw connections are a widely used and extremely critical connection method, and their tightness is directly related to the stability and safety of the entire structure.

[0003] Traditional screw connections rely primarily on the threaded engagement of the nut and screw for fastening. However, over long-term use, screws are prone to loosening due to a combination of factors, including vibration, temperature changes, mechanical stress, and the external environment. This loosening is often difficult to detect in time, potentially leading to a decrease in the strength of the connection, resulting in equipment failure, structural damage, or even safety accidents, causing significant losses and potential risks to production and daily life. In actual maintenance, operators must use specialized tools such as wrenches to inspect each fastener individually, making the process extremely inefficient. Utility Model Content

[0004] The purpose of this invention is to provide a fastener for high-strength screws to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution, which includes a loosening reminder fastening component disposed on a screw. The loosening reminder fastening component includes a fastening housing, and a main core screw is movably disposed within the fastening housing. The main core screw is threaded onto the screw.

[0006] As a preferred embodiment of this utility model, a pair of clamping plates are symmetrically arranged on the inner bottom surface of the fastening shell, a circular slide rail is provided on the inner wall of the fastening shell, and a pair of arc-shaped grooves are provided on the top of the fastening shell.

[0007] As a preferred embodiment of this utility model, a pair of push plates are provided at the bottom of the main core screw, and the two push plates are respectively staggered with two clamping plates and located on the front and back of the two clamping plates. A rotating ring is movably arranged inside the fastening housing, and a sliding groove is opened on the outer wall of the rotating ring. The circular slide rail is located in the sliding groove. A pair of guide push rods are provided at the top of the main core screw, and the top ends of the two guide push rods are respectively located in two arc-shaped grooves after passing through the rotating ring.

[0008] As a preferred embodiment of this utility model, a spring is sleeved on the outer side of each guide push rod, the top end of the spring is connected to the bottom of the rotating ring, and the bottom end of the spring is connected to the top of the main core screw.

[0009] As a preferred embodiment of this utility model, a warning label is provided on the top of each of the guide push rods.

[0010] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0011] During installation, the structural design of each component makes the operation process clear and simple. By manually pressing the guide push rod, and with the cooperation of the spring, push plate and clamping plate, the operator can easily assemble the main core screw onto the screw. The whole process does not require complicated tools and professional skills, which reduces the difficulty and time cost of installation and improves the installation efficiency. It has obvious advantages, especially in large-scale assembly operations.

[0012] 2. When the main core screw of this invention becomes loose, the elastic force of the spring and the cooperation between the guide push rod and the arc groove can accurately convert the loosening information into a visual warning signal. Operators do not need to use additional testing tools to check the tightness of each screw. They only need to observe whether the warning label on the top of the guide push rod is pushed out of the arc groove to quickly and accurately determine whether the screw is loose. This greatly improves the efficiency and accuracy of fastener status monitoring and effectively prevents safety accidents and equipment failures caused by loose screws. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention in a loosened state.

[0014] Figure 2 This is a side sectional view of the present invention;

[0015] Figure 3 This is a side sectional view of the fastening shell of this utility model;

[0016] Figure 4 This is a schematic diagram of the main core screw and rotating ring of this utility model;

[0017] Figure 5 This is a schematic diagram of the assembly of the lifting and rotating platform and the connecting display platform of this utility model.

[0018] Attached reference numerals: 1. Fastening housing; 2. Clamping plate; 3. Circular slide rail; 4. Arc groove; 5. Main core screw; 6. Push plate; 7. Rotating ring; 8. Slide groove; 9. Guide push rod; 10. Warning label; 11. Spring; 12. Screw; 13. Washer. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0020] like Figures 1-5 As shown, the present invention proposes a fastener for high-strength screws, which mainly includes a loosening reminder fastening component. It is mainly composed of a fastening housing 1 and a main core screw 5. The two are tightly fitted and installed on the screw 12 to jointly play the role of fastening and loosening monitoring.

[0021] As a key component, the fastening housing 1 has a pair of symmetrically distributed clamping plates 2 on its inner bottom surface. These two clamping plates 2 play a key role in restricting and driving the movement of the main core screw 5. At the same time, the inner wall of the fastening housing 1 is equipped with a circular slide rail 3, which perfectly matches the slide groove 8 on the outer wall of the rotating ring 7, ensuring that the rotating ring 7 can rotate smoothly and stably within the fastening housing 1, providing a basic guarantee for the dynamic response of the entire connection structure. The pair of arc-shaped grooves 4 on the top of the fastening housing 1 are directly related to the guide push rod 9 and are important indicator windows for loosening monitoring.

[0022] The main core screw 5 is screwed onto the screw 12 by threads. The pair of push plates 6 at its bottom form a clever staggered structure with the clamping plate 2 inside the fastening housing 1. The two push plates 6 are precisely located on the front and back of the two clamping plates 2 respectively. When the main core screw 5 rotates on the screw 12, the interaction between the push plates 6 and the clamping plates 2 can convert the rotation into linear motion, thereby driving the entire fastening assembly to make corresponding movements. The pair of guide push rods 9 at the top of the main core screw 5 pass upward through the rotating ring 7, and their top ends are located in the two arc-shaped grooves 4 at the top of the fastening housing 1 respectively. This structural design allows the guide push rods 9 to produce obvious positional changes in the arc-shaped grooves 4 as the main core screw 5 moves slightly, thereby realizing intuitive monitoring of the loosening of the main core screw 5.

[0023] Each guide push rod 9 is fitted with a spring 11 on its outer side. The top end of the spring 11 is connected to the bottom of the rotating ring 7, and the bottom end is connected to the top of the main core screw 5. The spring 11 plays a balancing and buffering role in the entire connection structure. It can not only provide stable elastic support for the guide push rod 9, keeping it in a specific position under normal conditions, but also provide timely feedback on the position change of the main core screw 5 through the expansion and contraction of the spring 11 when the main core screw 5 is loosened by vibration or other external forces. Then, the loosening status of the screw 12 can be clearly indicated by whether the warning label 10 at the top of the guide push rod 9 has moved out of the arc groove 4. This greatly improves the reliability and safety of the entire connection structure and effectively avoids potential failures or safety hazards caused by the loosening of the screw 12.

[0024] During the specific installation operation, firstly, the screw 12 is accurately passed through the object to be fixed. Then, the matching washer 13 is put on the other end of the screw 12 to ensure the stability and sealing of the connection. Then, the installation operation of this device can begin. During installation, the operator needs to press the two guide push rods 9 firmly with his hands and press them into the fastening housing 1. At this time, the guide push rods 9 will overcome the elastic force of the spring 11, causing the two springs 11 to gradually stretch and deform. At the same time, the guide push rods 9 will transmit the pressure to the main core screw 5, forcing it to move downward along the axis in the fastening housing 1 until the two push plates 6 on the main core screw 5 are accurately located at the corresponding positions on the front and back of the two clamping plates 2 inside the fastening housing 1.

[0025] In this state, place the fastening housing 1 on top of the screw 12. During this process, be careful not to release the hand pressing the guide push rod 9 to maintain the relative position of the push plate 6 and the clamping plate 2. Then, use a wrench to tighten the fastening housing 1. Since the fastening housing 1 and the main core screw 5 are tightly fitted through the clamping plate 2 and the push plate 6, when the fastening housing 1 rotates, it will drive the main core screw 5 to rotate around the axis of the screw 12, so that the main core screw 5 is gradually assembled onto the screw 12. Continue to tighten the wrench until the main core screw 5 is completely tightened onto the screw 12. At this point, the installation process of the entire device is successfully completed.

[0026] When the main core screw 5 shows signs of loosening due to various reasons (such as long-term vibration, external impact, etc.), the main core screw 5 will rotate slightly in the opposite direction on the screw 12. This rotation will cause the main core screw 5 to move slightly upward along the axial direction on the thread of the screw 12. In the initial design of the device, the two springs 11 are always in the state of tensioning the rotating ring 7. The rotating ring 7 is connected to the fastening housing 1. Therefore, when the main core screw 5 moves upward, the fastening housing 1 will maintain close contact with the washer 13 under the tension of the spring 11. The bottom surface of the fastening housing 1 is always tightly attached to the top of the washer 13.

[0027] In this situation, due to the upward movement of the main core screw 5, the tops of the two guide push rods 9, which were originally located in the arc groove 4, will be pushed out of the arc groove 4. Therefore, when operators perform routine inspections and maintenance on many fasteners, they do not need to use a wrench to check whether each fastener is loose. They only need to observe with their naked eyes whether the warning label 10 on the top of the guide push rod 9 is pushed out of the arc groove 4. This obvious feature allows them to quickly and accurately confirm whether the corresponding fastener has become loose, greatly improving the efficiency and accuracy of the inspection work, while also reducing the labor intensity and time cost of manual inspection.

[0028] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A fastener for a high-strength screw, comprising a loosening warning fastening assembly disposed on the screw (12), characterized in that: The loosening reminder fastening assembly includes a fastening housing (1), and a main core screw (5) is movably disposed inside the fastening housing (1), and the main core screw (5) is threaded onto a screw (12); A pair of clamping plates (2) are symmetrically arranged on the inner bottom surface of the fastening shell (1), a circular slide rail (3) is provided on the inner wall of the fastening shell (1), and a pair of arc grooves (4) are provided on the top of the fastening shell (1). The bottom of the main core screw (5) is provided with a pair of push plates (6). The two push plates (6) are respectively staggered with the two clamping plates (2) and are respectively located on the front and back of the two clamping plates (2). A rotating ring (7) is movably arranged inside the fastening shell (1). A sliding groove (8) is opened on the outer wall of the rotating ring (7). The circular slide rail (3) is located in the sliding groove (8). The top of the main core screw (5) is provided with a pair of guide push rods (9). After the two guide push rods (9) pass through the rotating ring (7), their top ends are respectively located in two arc-shaped grooves (4).

2. A fastener for high-strength screws according to claim 1, characterized in that: Each of the guide push rods (9) is fitted with a spring (11) on its outer side. The top end of the spring (11) is connected to the bottom of the rotating ring (7), and the bottom end of the spring (11) is connected to the top of the main core screw (5).

3. A fastener for high-strength screws according to claim 1, characterized in that: Each of the guide push rods (9) is provided with a warning label (10) at the top.

Images