Device for detecting looseness of nut

Abstract

The utility model discloses a device for detecting looseness of a nut, which comprises two buffer grooves vertically and symmetrically arranged on a first annular groove on the upper surface of the nut, a compression spring is arranged in each buffer groove, a through hole is arranged in each buffer groove in a penetrating manner, and a limit rod is vertically arranged in each through hole in a penetrating manner. The upper ends of the two limiting rods are fixed to the lower surface of the annular plate, the limiting rods are sleeved with the compression springs, the upper ends of the compression springs abut against the lower surface of the annular plate, and the annular plate is movably arranged in the first annular groove; a first annular conducting strip is fixed between the lower ends of the two limiting rods, the first annular conducting strip is arranged in a second annular groove in the lower surface of the nut, an early warning assembly is installed in the second annular groove, and the lower surface of the early warning assembly is in threaded connection with an end cover; the utility model has the advantages that the installation is convenient and fast, the nut can emit light in time after loosening, and the loosening of the nut can be found in time, so that the nuisance can be eliminated in time, the danger can be eliminated, and the power supply can be replaced.

Description

Technical Field:

[0001] The utility model relates to the technical field of nuts, and specifically relates to a device for detecting nut loosening. Background Art:

[0002] During the construction of electric towers, nuts and bolts play a very important role. Since most of the connections between plates are made by bolts and nuts, and the tower body is often affected by strong winds and rainfall all year round, the tower body will shake. Long-term shaking will inevitably cause some nuts to become loose, thus making the tower body have potential dangers. Due to the large number of nuts and the fact that they cannot be detected in time during the maintenance process, maintenance personnel may miss inspections and cannot eliminate the hazards and dangers in time. Content of the Utility Model:

[0003] The purpose of the utility model is to provide a device for detecting nut loosening to solve the problems raised in the above background art.

[0004] The utility model is implemented by the following technical solutions:

[0005] A device for detecting nut loosening is arranged on the nut. A first annular groove is formed on the upper surface of the nut. Two buffer grooves are vertically and symmetrically formed on the first annular groove. Compression springs are placed in each buffer groove. Through holes are formed through each buffer groove. Two limiting rods are vertically inserted into the two through holes respectively. The upper ends of the two limiting rods are fixed on the lower surface of the annular plate. The compression springs are sleeved on the limiting rods and their upper ends abut against the lower surface of the annular plate. The annular plate is movably placed in the first annular groove. A second annular groove is formed on the lower surface of the nut. A first annular conductive sheet is fixed between the lower ends of the two limiting rods. The first annular conductive sheet is placed in the second annular groove. An early warning component is installed in the second annular groove. The lower surface of the early warning component is threadedly connected with an end cover.

[0006] Preferably, the early warning component includes a shell, a power source and a second annular conductive sheet. The shell is annular. Clamping blocks are fixed on the outer surfaces of the two symmetrical sides of the shell. Clamping grooves matching the clamping blocks are formed on the two symmetrical sides of the second annular groove. A power source is installed on the shell. The positive and negative poles of the power source are respectively connected with the second annular conductive sheet. The first annular conductive sheet is movably placed in the shell and is in movable contact with the second annular conductive sheet.

[0007] Preferably, diodes are installed on the lower surfaces of the first annular conductive sheet and the second annular conductive sheet.

[0008] Preferably, the end cover is made of acrylic board.

[0009] Advantages of the present utility model: It is convenient and fast to install. When the nut becomes loose, it can emit light in time, which is convenient for maintenance personnel to promptly discover the loosening of the nut, so as to promptly eliminate the obstruction and danger. The power supply can be replaced. This device is applicable to all mechanical equipment fixed and connected by bolts, not limited to the content introduced in the background technology. Brief Description of the Drawings:

[0010] Figure 1 is a schematic structural diagram of the present utility model;

[0011] Figure 2 is Figure 1 the top view of;

[0012] Figure 3 is Figure 2 the cross-sectional view at A in;

[0013] Figure 4 is Figure 3 the enlarged view at B in;

[0014] Figure 5 is Figure 1 the partial structural schematic diagram of;

[0015] Figure 6 is the structural schematic of the nut Figure 1 ;

[0016] Figure 7 is the structural schematic of the nut Figure 2 ;

[0017] Figure 8 is the partial structural schematic diagram of the present utility model;

[0018] Figure 9 is the combined state diagram of the warning component and the end cover;

[0019] Figure 10 is Figure 9 the front view of;

[0020] Figure 11 is Figure 10 the cross-sectional view at C in.

[0021] In the figure: 1. Nut, 1.1. First annular groove, 1.2. Buffer groove, 1.3. Through hole, 1.4. Second annular groove, 1.5. Card slot, 2. Compression spring, 3. Limiting rod, 4. Annular plate, 5. First annular conductive sheet, 6. Warning component, 6.1. Housing, 6.11. Block, 6.2. Power supply, 6.3. Second annular conductive sheet, 7. End cover, 8. Diode, 9. Plate. Specific Embodiment:

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1-11 , the present utility model provides a technical solution for a device for detecting nut loosening:

[0024] A device for detecting nut loosening is provided on nut 1. A first annular groove 1.1 is formed on the upper surface of nut 1. Two buffer grooves 1.2 are vertically and symmetrically formed on the first annular groove 1.1. Compression springs 2 are placed in each buffer groove 1.2. Through holes 1.3 are formed through each buffer groove 1.2. Limiting rods 3 are vertically inserted into the two through holes 1.3 respectively. The upper ends of the two limiting rods 3 are fixed to the lower surface of the annular plate 4. The compression springs 2 are sleeved on the limiting rods 3 and their upper ends abut against the lower surface of the annular plate 4. The annular plate 4 is movably placed in the first annular groove 1.1. A second annular groove 1.4 is formed on the lower surface of nut 1. A first annular conductive sheet 5 is fixed between the lower ends of the two limiting rods 3. The first annular conductive sheet 5 is placed in the second annular groove 1.4. An early warning component 6 is installed in the second annular groove 1.4. The lower surface of the early warning component 6 is threadedly connected with an end cover 7, which facilitates the disassembly of the end cover 7 to realize the timely replacement of the power supply 6.2 and the maintenance of the circuit. The end cover 7 is made of an acrylic plate, which facilitates the diffusion of the diode light source and enables the maintenance personnel to discover it in time.

[0025] The early warning component 6 includes: a housing 6.1, a power supply 6.2, and a second annular conductive sheet 6.3; the housing 6.1 is annular. Clamping blocks 6.11 are fixed on the outer surfaces of the two symmetrical sides of the housing 6.1. Clamping grooves 1.5 matching the clamping blocks 6.11 are formed on the two symmetrical sides of the second annular groove 1.4. A power supply 6.2 is installed on the housing 6.1. The positive and negative poles of the power supply 6.2 are respectively connected with the second annular conductive sheet 6.3. The first annular conductive sheet 5 is movably placed in the housing 6.1 and is in movable contact with the second annular conductive sheet 6.3.

[0026] Diodes 8 are installed on the lower surfaces of both the first annular conductive sheet 5 and the second annular conductive sheet 6.3.

[0027] The working principle is as follows: Nut 1 is screwed onto the bolt. After tightening, the annular plate 4 will be pressed into the first annular groove 1.1 by the plate 9, the compression spring 2 is compressed, the first annular conductive sheet 5 and the second annular conductive sheet 6.3 are in contact and separated, resulting in an open circuit, and the diode 8 does not light up. The upper surface of nut 1 will also abut against the lower surface of the plate 9 to complete clamping.

[0028] If the nut 1 becomes loose, the annular plate 4 will be pushed out of the first annular groove 1.1 under the action of the compression spring 2. After the annular plate 4 is pushed a certain distance, the first annular conductive sheet 5 in the second annular groove 1.4 will contact the second annular conductive sheet 6.3, the circuit is connected, the diode 8 lights up, and the light can pass through the end cover 7 and is easily observed by the outside world, realizing early warning, helping maintenance personnel to timely detect the looseness of the nut 1, so as to timely remove obstacles and eliminate dangers.

[0029] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for detecting nut loosening, arranged on a nut (1), characterized in that: The upper surface of the nut (1) is provided with a first annular groove (1.1), and the first annular groove (1.1) is provided with two buffer grooves (1.2) vertically and symmetrically, each buffer groove (1.2) is provided with a compression spring (2), each buffer groove (1.2) is provided with a through hole (1.3) running through it, and a limiting rod (3) is vertically passed through each of the two through holes (1.3), and the upper ends of the two limiting rods (3) are fixed to the lower surface of the annular plate (4), and the compression spring (2) is sleeved on the limiting rod ( The nut (1) is provided with a second annular groove (1.4), and a first annular conductive sheet (5) is fixed between the lower ends of the two limit rods (3), and the first annular conductive sheet (5) is placed in the second annular groove (1.4). An early warning component (6) is installed in the second annular groove (1.4), and an end cover (7) is threadedly connected to the lower surface of the early warning component (6).

2. A device for detecting nut loosening according to claim 1, characterized in that: The early warning component (6) comprises a shell (6.1), a power supply (6.2) and a second annular conductive sheet (6.3); the shell (6.1) is annular, and blocks (6.11) are fixed to the outer surfaces of two symmetrical sides of the shell (6.1), and the second annular groove (1.4) is provided with card slots (1.5) matching the blocks (6.11) on two symmetrical sides; the power supply (6.2) is installed on the shell (6.1), and the positive and negative electrodes of the power supply (6.2) are respectively connected to the second annular conductive sheet (6.3), and the first annular conductive sheet (5) is movably placed in the shell (6.1) and movably contacts the second annular conductive sheet (6.3).

3. A device for detecting nut loosening according to claim 1, characterized in that: Diodes (8) are mounted on the lower surfaces of the first annular conductive sheet (5) and the second annular conductive sheet (6.3).

4. The device for detecting nut loosening according to claim 1, characterized in that: The end cover (7) is made of an acrylic plate.

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