A connecting bolt looseness indicating device

Abstract

This utility model relates to the technical field of bolt loosening indicator devices, specifically a bolt loosening indicator device, including an upper connecting plate, a zero point A, a screw indicator A, a screw indicator B, a zero point B, and a transparent anti-fouling cover. A lower connecting plate is provided at the lower end of the upper connecting plate, and a bolt rod is provided between the upper and lower connecting plates, with the upper end of the bolt rod passing through the upper connecting plate. A screw indicator A is provided at the top of the bolt rod, and a bolt loosening indicator cap is fitted around the top of the bolt rod. A zero point A is fixed to one side of the top of the bolt loosening indicator cap. This novel bolt loosening indicator device with scale markings is manufactured according to the size of a nut and has a cylindrical structure, facilitating direct observation of loosened bolts. The scale markings can indicate the loosening and amount of loosening of the bolt, thereby effectively improving the loosening indication effect.

Description

Technical Field

[0001] This utility model relates to the technical field of bolt loosening indicator devices, specifically to a bolt loosening indicator device. Background Technology

[0002] A bolt loosening indicator is a safety monitoring device used to monitor the status of bolt connections in real time. It indicates whether the bolts are loose through intuitive methods such as physical displacement and color changes. It is widely used in fields such as machinery, construction, transportation, and energy that require high-reliability connections, and helps prevent equipment failures, safety accidents, or structural failures caused by bolt loosening.

[0003] Currently, there are 25 specifications of connecting bolt caps, and bolts are usually encased inside equipment or hidden in structures, making it difficult to directly observe when they loosen. However, existing bolt loosening indicator devices do not have the function of manufacturing cylindrical bolt caps with scale indicators according to the nut size, and lack a structure to indicate the loosening and amount of bolt using scale size labels, resulting in poor loosening indication effect. Therefore, we propose a connecting bolt loosening indicator device. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a bolt loosening indicator. This bolt loosening indicator with scale markings is manufactured according to the size of the nut and has a cylindrical structure, which facilitates direct observation of the loosened bolt by personnel. The scale markings can be used to indicate the loosening and the amount of loosening of the bolt, thereby effectively improving the loosening indication effect.

[0005] The technical solution adopted by this utility model to solve its technical problem is a connecting bolt loosening indicator device, including an upper connecting plate, an indicator zero point A, a screw indicator needle A, a screw indicator needle B, an indicator zero point B and a transparent anti-fouling cover. The lower end of the upper connecting plate is provided with a lower connecting plate, and a bolt rod is provided between the upper connecting plate and the lower connecting plate. The upper end of the bolt rod passes through the upper connecting plate.

[0006] The top of the bolt rod is provided with a screw indicator needle A, and a bolt loosening indicator cap is sleeved around the top of the bolt rod. A zero-point indicator A is fixed on one side of the top of the bolt loosening indicator cap. A screw indicator needle B is installed at the bottom of the outer side of the bolt rod. A zero-point indicator B is fixed on the top of the lower connecting plate and on one side of the screw indicator needle B.

[0007] By adopting the above technical solution, this new type of bolt loosening indicator with scale markings is manufactured according to the size of the nut and has a cylindrical structure, which makes it easy for personnel to directly observe the loosened bolts. The scale markings can be used to indicate the loosening and the amount of loosening of the bolts, thereby effectively improving the loosening indication effect.

[0008] Specifically, the bolt loosening indicator cap is surrounded by a transparent anti-fouling cover, the upper end of the outer side of the bolt loosening indicator cap is provided with external threads, and the lower end of the inner side of the bolt loosening indicator cap is provided with internal threads.

[0009] By adopting the above technical solution, personnel can connect the transparent anti-fouling cover to the bolt loosening indicator cap by using the combination of external and internal threads. The transparent anti-fouling cover can prevent dust, oil or moisture from corroding the zero point A and the bolt indicator needle A located at the top of the bolt rod, thus extending their service life.

[0010] Specifically, the bolt loosening indicator cap has a threaded interface inside.

[0011] By adopting the above technical solution, the threaded interface allows the bolt loosening indicator cap to be fitted onto the outside of the bolt shank in a threaded connection manner, facilitating disassembly.

[0012] Specifically, the upper connecting plate has through holes evenly distributed around its interior.

[0013] Specifically, a metal washer is provided between the top of the bolt rod and the bolt loosening indicator cap.

[0014] The beneficial effects of this utility model are:

[0015] (1) The bolt loosening indicator device of this utility model has a screw indicator needle A sleeved on the upper end of the outside of the bolt rod, pointing to the zero point A on the upper part of the bolt loosening indicator cap. The zero point B is located on the top of the lower connecting plate, on one side of the screw indicator needle B. The bolt loosening indicator cap of this utility model adopts a dual indication method with double scale surfaces and screw indicator needle and equipment adhesive indicator needle, which can indicate from two different angles, which not only increases the convenience of observation, but also allows the bolt loosening situation to be judged from multiple dimensions, thus improving the accuracy and reliability of the indication.

[0016] (2) The bolt loosening indicator device described in this utility model has zero point A, indicator needle A and zero point B installed on site to meet the actual working needs of bolts on site, so as to accurately read the loosening amount. The scale label installed on site can be adjusted according to the specific situation, which reflects the flexibility and adaptability of the device design.

[0017] (3) The bolt loosening indicator device of this utility model has a transparent anti-fouling cover that can prevent dust, oil or water from corroding the zero point A and the screw indicator needle A located at the top of the bolt rod, thus extending its service life. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 For the present utility model Figure 1 Schematic diagram of the structure at point A in the middle;

[0021] Figure 3 This is a schematic diagram of the structure of the transparent anti-fouling cover of this utility model.

[0022] In the diagram: 1. Bolt loosening indicator cap; 2. Bolt rod; 3. Upper connecting plate; 4. Lower connecting plate; 5. Threaded interface; 6. Zero point A; 7. Screw indicator needle A; 8. Screw indicator needle B; 9. Zero point B; 10. Transparent anti-fouling cover; 11. Internal thread; 12. Through hole; 13. External thread; 14. Metal gasket. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] To facilitate accurate observation of loosened bolts, graduated labels are used to indicate the loosening and amount of loosening, improving the effectiveness of bolt loosening indication. Figure 1-3 As shown, the present invention provides a connecting bolt loosening indicator device, which includes an upper connecting plate 3, an indicator zero point A6, a screw indicator needle A7, a screw indicator needle B8, an indicator zero point B9, and a transparent anti-fouling cover 10. The lower end of the upper connecting plate 3 is provided with a lower connecting plate 4, and a bolt rod 2 is provided between the upper connecting plate 3 and the lower connecting plate 4. The upper end of the bolt rod 2 passes through the upper connecting plate 3.

[0025] The top of the bolt rod 2 is provided with a screw indicator needle A7, and a bolt loosening indicator cap 1 is sleeved around the top of the bolt rod 2. A zero-point indicator A6 is fixed on one side of the top of the bolt loosening indicator cap 1. A screw indicator needle B8 is installed at the bottom of the outer side of the bolt rod 2. A zero-point indicator B9 is fixed on the top of the lower connecting plate 4 and on one side of the screw indicator needle B8.

[0026] In use, the screw indicator A7 is sleeved on the upper end of the outside of the bolt rod 2, pointing to the zero point A6 on the upper part of the bolt loosening indicator cap 1. The zero point B9 is located on the top of the lower connecting plate 4, on one side of the screw indicator B8. This new bolt loosening indicator cap 1 adopts a dual-scale surface and a dual-indication method of screw indicator and equipment adhesive indicator, which can indicate from two different angles, increasing the convenience of observation and allowing the bolt loosening status to be judged from multiple dimensions, thus improving the accuracy and reliability of the indication.

[0027] Zero point A6, indicator needle A7, and zero point B9 are all installed on-site to meet the actual working needs of bolts on-site, so as to accurately read the loosening amount. The on-site installed scale labels can be adjusted according to specific conditions, reflecting the flexibility and adaptability of the device design.

[0028] The transparent anti-fouling cover 10 can prevent dust, oil or moisture from corroding the zero point A6 and screw indicator needle A7 located on the top of the bolt rod 2, thus extending their service life.

[0029] For example, such as Figure 1 , Figure 3 As shown, a transparent anti-fouling cover 10 is provided around the bolt loosening indicator cap 1, the upper end of the outer side of the bolt loosening indicator cap 1 is provided with an external thread 13, and the lower end of the inner side of the bolt loosening indicator cap 1 is provided with an internal thread 11.

[0030] In use, the transparent anti-fouling cover 10 can be threaded to the bolt loosening indicator cap 1 by the cooperation of the external thread 13 and the internal thread 11. The transparent anti-fouling cover 10 can prevent dust, oil or water from corroding the zero point A6 and the screw indicator needle A7 located on the top of the bolt rod 2, thus extending their service life.

[0031] For example, such as Figure 3 As shown, the bolt loosening indicator cap 1 has a threaded interface 5 inside.

[0032] In use, the threaded interface 5 facilitates the loosening of the bolt. The indicator cap 1 is threadedly fitted onto the outside of the bolt shank 2 for easy disassembly.

[0033] For example, such as Figure 1 As shown, through holes 12 are evenly distributed around the inside of the upper connecting plate 3.

[0034] In use, the through hole 12 allows the top of the bolt rod 2 to pass through the upper connecting plate 3.

[0035] For example, such as Figure 1 As shown, a metal washer 14 is provided between the top of the bolt rod 2 and the bolt loosening indicator cap 1.

[0036] When in use, the metal washer 14 can effectively enhance the stability of the connection between the bolt rod 2 and the bolt loosening indicator cap 1.

[0037] In use, the upper connecting plate 3 and the lower connecting plate 4 are connected by the bolt rod 2. The top of the upper connecting plate 3 passes through the lower connecting plate 4, and the bolt loosening indicator cap 1 can be put on the top of the bolt rod 2. The metal washer 14 can effectively enhance the stability of the connection between the bolt rod 2 and the bolt loosening indicator cap 1.

[0038] Furthermore, this utility model is provided with an indicator zero point A6, a screw indicator needle A7, a screw indicator needle B8, and an indicator zero point B9. The screw indicator needle A7 is sleeved on the upper end of the outside of the bolt rod 2, and the screw indicator needle A7 points to the indicator zero point A6 on the upper part of the bolt loosening indicator cap 1. The indicator zero point B9 is located on the top of the lower connecting plate 4, and the indicator zero point B9 is located on one side of the screw indicator needle B8.

[0039] Furthermore, the new bolt loosening indicator cap 1 adopts a dual-scale surface and a dual-indication method with a screw indicator and an equipment adhesive indicator, which can indicate from two different angles, increasing the convenience of observation and allowing the bolt loosening situation to be judged from multiple dimensions. This improves the accuracy and reliability of the indication and fully considers various observation angles and needs that may occur in actual operation, enabling the device to play an effective role in different environments.

[0040] Furthermore, the zero-point A6 on the bolt loosening indicator cap 1, the screw indicator needles A7 at the upper and lower ends of the bolt rod 2, and the zero-point B9 on the top of the lower connecting plate 4 are all installed on-site to meet the actual working needs of the bolts on-site, so as to accurately read the loosening amount. In the actual installation process, the working environment and requirements of the bolts may be different. The on-site installed scale labels can be adjusted according to the specific situation, which reflects the flexibility and adaptability of the device design.

[0041] Furthermore, the transparent anti-fouling cover 10 can prevent dust, oil, or moisture from corroding the zero point A6 and screw indicator needle A7 located on the top of the bolt rod 2, thus extending their service life.

[0042] 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 descriptions of the above embodiments and specifications 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 protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bolt loosening indicator device, characterized in that, It includes an upper connecting plate (3), an indicator zero point A (6), a screw indicator needle A (7), a screw indicator needle B (8), an indicator zero point B (9), and a transparent anti-fouling cover (10). The lower end of the upper connecting plate (3) is provided with a lower connecting plate (4). A bolt rod (2) is provided between the upper connecting plate (3) and the lower connecting plate (4). The upper end of the bolt rod (2) passes through the upper connecting plate (3). The top of the bolt rod (2) is provided with a screw indicator needle A (7), and the outer periphery of the top of the bolt rod (2) is provided with a bolt loosening indicator cap (1). A zero point A (6) is fixed on one side of the top of the bolt loosening indicator cap (1). A screw indicator needle B (8) is installed at the bottom of the outer side of the bolt rod (2). A zero point B (9) is fixed on the top of the lower connecting plate (4) and on one side of the screw indicator needle B (8).

2. The bolt loosening indicator device according to claim 1, characterized in that, The bolt loosening indicator cap (1) is surrounded by a transparent anti-fouling cover (10), the upper end of the outer side of the bolt loosening indicator cap (1) is provided with an external thread (13), and the lower end of the inner side of the bolt loosening indicator cap (1) is provided with an internal thread (11).

3. The bolt loosening indicator device according to claim 1, characterized in that, The bolt loosening indicator cap (1) has a threaded interface (5) inside.

4. The bolt loosening indicator device according to claim 1, characterized in that, The upper connecting plate (3) has through holes (12) evenly distributed around its interior.

5. A bolt loosening indicator device according to claim 1, characterized in that, A metal washer (14) is provided between the top of the bolt rod (2) and the bolt loosening indicator cap (1).

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