Self-checking fastening nut

Abstract

The utility model relates to a kind of self-detection fastening nut, including body, the surface of the body is integrally formed with limiting protrusion, detection unit, the detection unit includes mounting plate and circuit board for nut tightness monitoring, the mounting plate is set to the outside of body, the circuit board is installed on mounting plate, extrusion unit, the extrusion unit includes bottom plate, elastic member and lug, the bottom plate is sleeved to the outside of body, the elastic member is set to bottom plate, the lug is set to the bottom surface of bottom plate, by setting mounting plate and bottom plate on nut body, and lug is set on bottom plate, and respectively setting elastic member and detection circuit board used in cooperation on mounting plate and bottom plate, so that the nut body can effectively realize self-detection effect when the phenomenon of accidental loosening occurs after fastening operation, prevent the nut from loosening, due to staff not timely find loosening phenomenon and lead to the situation of accidental occurrence.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, specifically to a self-detecting fastening nut. Background Technology

[0002] Fasteners are essential mechanical parts used for securing connections. They are found in a wide variety of machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, meters, and supplies. Fasteners are characterized by their numerous varieties and specifications, diverse performance and applications, and a high degree of standardization, serialization, and generalization. Currently, commonly used fasteners generally consist of bolts and nuts, which work together to achieve a fastening effect. However, the simplistic nature of nuts, which can only be used with bolts to achieve a fastening effect, means that if the nut loosens during use and external personnel cannot immediately detect the situation, it could lead to the nut falling off and causing accidents. This is detrimental to safe use and needs improvement. Utility Model Content

[0003] Based on the above description, this utility model provides a self-detecting fastening nut to solve the problem of the single function of existing nuts.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A self-detecting fastening nut includes a body, on the surface of which a limiting protrusion is integrally formed; a detection unit, which includes a mounting plate and a circuit board for monitoring the tightness of the nut; the mounting plate is disposed on the outside of the body, and the circuit board is mounted on the mounting plate; and a pressing unit, which includes a base plate, an elastic element, and a protrusion; the base plate is sleeved on the outside of the body, the elastic element is disposed on the base plate, and the protrusion is disposed on the bottom surface of the base plate.

[0005] Based on the above technical solution, the present invention can be further improved as follows.

[0006] Furthermore, the top and bottom surfaces of the main body are respectively provided with a circumferential groove one and a groove two, and the mounting plate and the bottom plate are respectively sleeved with the main body through groove one and groove two.

[0007] Furthermore, the circuit board integrates a wireless transmission module, a power supply module, a composite sensor, and a control module, with the top surface of the elastic element abutting against the detection end of the composite sensor.

[0008] Furthermore, the bottom surface of the protrusion extends below the body.

[0009] Furthermore, the surface of the mounting plate is provided with a through hole, and the surface of the base plate is integrally formed with a limiting rod protruding into the through hole.

[0010] Furthermore, the limiting rod is located away from the outer side of the body.

[0011] Furthermore, the mounting plate is located between the body and the limiting protrusion and is in contact with each other.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0013] By setting a mounting plate and a base plate on the nut body, and setting a protrusion on the base plate, and setting a matching elastic element and a detection circuit board on the mounting plate and the base plate respectively, the nut body can effectively achieve a self-detection effect when it becomes loose after tightening operation, thus preventing accidents from occurring because the staff did not detect the loosening in time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0015] Figure 2 This is a top view of the structure of this utility model;

[0016] Figure 3 This is a side view of the structure of this utility model.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Body; 11. Limiting protrusion; 12. Slot 1; 13. Slot 2; 2. Detection unit; 21. Mounting plate; 211. Perforation; 22. Circuit board; 3. Extrusion unit; 31. Base plate; 311. Limiting rod; 32. Elastic element; 33. Protrusion. Detailed Implementation

[0019] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0021] Example

[0022] Please refer to Figures 1-3This embodiment provides a self-detecting fastening nut, including a body 1. A limiting protrusion 11 is integrally formed on the surface of the body 1. Multiple limiting protrusions 11 are located on the upper outer side of the body 1. A detection unit 2 includes a mounting plate 21 and a circuit board 22 for monitoring nut tightness. The mounting plate 21 is disposed on the outer side of the body 1, and the circuit board 22 is mounted on the mounting plate 21. The circuit board 22 integrates a wireless transmission module, a power supply module, a composite sensor, and a control module (this circuit board 22 is prior art and will not be described in detail here). The pressure signal detected by the composite sensor is transmitted to the control module. The control module acquires the pressure value and writes it into the wireless transmission module. The pressure value stored in the wireless transmission module can be obtained in real time through an externally set wireless transceiver device. The extrusion unit 3 includes a base plate 31, an elastic element 32, and a protrusion 33. The base plate 31 is sleeved on the outside of the body 1 and is located below the mounting plate 21. The elastic element 32 is set on the base plate 31, and the top surface of the elastic element 32 abuts against the detection end of the composite sensor. The elastic element 32 is specifically a silicone column. There are two protrusions 33, both located on the bottom surface of the base plate 31, and the bottom surface of the protrusions 33 protrudes below the body 1.

[0023] In this embodiment, the base plate 31 and the main body 1 are first connected by a sleeve. Then, the base plate 31 of the nut body 1 is connected to the fastener using bolts that are used in conjunction with external devices. During the connection process, the nut body 1 is turned on the bolt, so that the bottom surface of the protrusion 33 first contacts the surface of the fastener. Then, the knob is turned with pressure, and through the nut body 1 and the limiting protrusion 11, the composite sensor and elastic element 32 included in the circuit board 22 mounted on the mounting plate 21 achieve a compression effect until the bottom surface of the nut body 1 is in close contact with the contact surface of the fastener, and a fastening effect is achieved. At the same time, the composite sensor, after being compressed, transmits the detected pressure signal to the control module. After the control module obtains the pressure value, it writes the pressure value into the wireless transmission module. The pressure value stored in the wireless transmission module can be obtained in real time by the wireless device of the external device. When the nut body 1 becomes loose, the pressure value detected by the composite sensor decreases. At this time, the pressure value obtained by the external wireless transceiver device also decreases, indicating that the nut body 1 has become loose.

[0024] As an optional implementation, the top and bottom surfaces of the main body 1 are respectively provided with a first slot 12 and a second slot 13 along the annular direction. The mounting plate 21 and the bottom plate 31 are respectively sleeved with the main body 1 through the first slot 12 and the second slot 13. A space is left between the top surface of the bottom plate 31 and the main body 1 through the second slot 13. This space is greater than or equal to the distance of the protrusion 33 protruding to the bottom of the main body 1. A through hole 211 is provided through the surface of the mounting plate 21. A limiting rod 311 protruding into the through hole 211 is integrally formed on the surface of the bottom plate 31.

[0025] In this embodiment, the mounting plate 21 and the base plate 31 are respectively fitted onto the outside of the body 1 through the first slot 12 and the second slot 13, and the limiting rod 311 is inserted into the through hole 211 opened in the mounting plate 21. This ensures that when the nut body 1 is fastened by an external tool, the mounting plate 21 and the base plate 31 remain stable relative to the body 1, preventing the mounting plate 21 and the base plate 31 from rotating with the rotation of the body 1, thus making it easier for workers to perform the fastening operation.

[0026] As an alternative implementation, the limiting rod 311 is moved away from the outer side of the body 1.

[0027] In this embodiment, the position design of the limiting rod 311 avoids obstructing the knob operation of the nut body 1.

[0028] As an alternative implementation, the mounting plate 21 is located between the body 1 and the limiting protrusion 11 and is in contact with each other.

[0029] In this embodiment, the position of the limiting protrusion 11 can be restricted by the position of the mounting plate 21, thus ensuring the stability between the mounting plate 21 and the body 1.

[0030] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. A self-checking fastening nut comprising a body (1), characterized in that: The surface of the body (1) is integrally formed with a limiting protrusion (11). The detection unit (2) includes a mounting plate (21) and a circuit board (22) for monitoring the tightness of nuts. The mounting plate (21) is located on the outside of the main body (1), and the circuit board (22) is mounted on the mounting plate (21). The extrusion unit (3) includes a base plate (31), an elastic element (32) and a protrusion (33). The base plate (31) is sleeved on the outside of the body (1), the elastic element (32) is disposed on the base plate (31), and the protrusion (33) is disposed on the bottom surface of the base plate (31).

2. A self-checking fastening nut according to claim 1, wherein: The top and bottom surfaces of the main body (1) are respectively provided with a first slot (12) and a second slot (13) along the annular direction. The mounting plate (21) and the bottom plate (31) are respectively connected to the main body (1) through the first slot (12) and the second slot (13).

3. The self-checking fastening nut of claim 1, wherein: The circuit board (22) integrates a wireless transmission module, a power supply module, a composite sensor and a control module, and the top surface of the elastic element (32) abuts against the detection end of the composite sensor.

4. The self-checking fastening nut of claim 1, wherein: The bottom surface of the protrusion (33) protrudes below the body (1).

5. The self-checking fastening nut of claim 1, wherein: The surface of the mounting plate (21) is provided with a through hole (211), and the surface of the base plate (31) is integrally formed with a limiting rod (311) protruding into the through hole (211).

6. A self-checking fastening nut according to claim 5, wherein: The limiting rod (311) is far from the outside of the body (1).

7. The self-checking fastening nut of claim 1, wherein: The mounting plate (21) is located between the body (1) and the limiting protrusion (11) and is in contact with each other.

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