TWI710714B - Bolt sensing structure - Google Patents

Abstract

A bolt sensing structure includes a bolt body, a torsion module, and at least one power storage element. The bolt body has an accommodating space. The torsion module is assembled and arranged in the accommodating space. The torsion module includes A connecting component and at least one adhesive layer, the connecting component includes an upper connecting portion and a lower connecting portion, at least one sensing element is correspondingly disposed between the upper and lower connecting portions, and the sensing element is used for sensing torque When the value changes, the glue layer is correspondingly coated on the outer peripheral side of the upper and lower connecting parts, the electrical storage element is electrically connected with the torque module, and the electrical storage element is used to supply electrical energy to the sensing element.

Description

Bolt sensing structure

The present invention relates to a bolt structure, especially a bolt sensing structure that can greatly improve the stress detection degree and the accuracy of the stress value.

Press, bolts are used to lock various objects to be combined, for example, rims, rockets, bridges, large motors, and electric towers waiting to be combined can all be locked with bolts, and when the user locks the bolts , For different purposes or different environments, there are bolts with the most appropriate tightening torque. If the tightening torque is too small, the bolt will easily loosen, and if the tightening torque is too large, the bolt will It is easy to break, so it is very important to lock the bolt with proper torque.

Generally, the deformation of the smart bolt structure on the market is not easy to detect. Therefore, if the conventional smart bolt structure is installed on a bridge, rail or large motor, it is very easy to cause danger due to the lack of sensitivity of the conventional smart bolt. . In addition, since the smart bolt structure on the market does not have any medium transmission inside, the stress detected by the smart bolt structure cannot be fully sensed and received, so the accuracy of the stress value is relatively poor.

Therefore, how to solve the above-mentioned conventional problems and deficiencies is the direction that the inventor of the present invention and related manufacturers engaged in this industry urgently want to study and improve.

Therefore, in order to effectively solve the above-mentioned problems, the main purpose of the present invention is to provide A bolt sensing structure that can greatly improve stress detection.

The secondary objective of the present invention is to provide a bolt sensing structure that greatly improves the accuracy of the stress value.

To achieve the above objective, the present invention provides a bolt sensing structure, which includes a bolt body, a torsion module and at least one power storage element. The bolt body has an accommodating space, and the torsion module is correspondingly installed in the In the accommodating space, the torsion module includes a connecting component and at least one adhesive layer, the connecting component includes an upper connecting portion and a lower connecting portion, and at least one sensing element is correspondingly disposed between the upper and lower connecting portions, The sensor is used to sense the change of the torque value, the glue layer is correspondingly coated on the outer peripheral side of the upper and lower connecting parts, the electrical storage element is electrically connected with the torque module, and the electrical storage element is Used to supply electrical energy to the sensing element.

Through the design of this structure of the present invention, the sensing element is separately arranged between the upper connecting portion and the lower connecting portion, and the adhesive layer design applied on the outer peripheral side of the upper and lower connecting portions is used, Not only can the stress detection be greatly improved, but the accuracy of the detected stress values can also be improved.

2‧‧‧Bolt sensing structure

20‧‧‧Bolt body

21‧‧‧Accommodation space

22‧‧‧First internal thread

23‧‧‧Second internal thread

24‧‧‧First docking department

25‧‧‧Second docking part

3‧‧‧Torque Module

30‧‧‧Connecting components

300‧‧‧Upper connecting part

301‧‧‧First thread

302‧‧‧First gap

303‧‧‧Lower connecting part

304‧‧‧Second thread

305‧‧‧Second gap

306‧‧‧First fixed part

307‧‧‧Second fixed part

31‧‧‧Glue layer

310‧‧‧First adhesive layer

311‧‧‧Second Adhesive Layer

4‧‧‧Sensing parts

40‧‧‧Sensing unit

5‧‧‧Power storage element

6‧‧‧Chip

60‧‧‧Regulator Module

61‧‧‧Signal Amplifier

7‧‧‧Substrate

70‧‧‧Control Module

71‧‧‧Radio frequency module

72‧‧‧Wireless coupling module

73‧‧‧Battery Management Module

8‧‧‧Circuit board

9‧‧‧Wire

L1‧‧‧First diameter

L2‧‧‧Second diameter

L3‧‧‧third diameter

Figure 1 is a three-dimensional assembly diagram of the first embodiment of the bolt sensing structure of the present invention; Figure 2 is a schematic diagram of the first embodiment of the bolt sensing structure of the present invention; Figure 3 is the second embodiment of the bolt sensing structure of the present invention Partial enlarged view of the second embodiment; Figure 4 is a schematic diagram of the third embodiment of the bolt sensing structure of the present invention; Figure 5 is a schematic diagram of the fourth embodiment of the bolt sensing structure of the present invention.

The above-mentioned objects and structural and functional characteristics of the present invention will be described based on the preferred embodiments of the accompanying drawings.

First, please refer to Figures 1 and 2, which are the three-dimensional assembly diagram and schematic diagram of the first embodiment of the bolt sensing structure of the present invention. As shown in the figure, a bolt sensing structure 2 includes a bolt body 20 and a torsion force. The module 3 and at least one power storage element 5, the bolt body 20 has an accommodating space 21, the torsion module 3 is correspondingly installed in the accommodating space 21, the torsion module 3 includes a connecting assembly 30 and At least one adhesive layer 31. The connecting assembly 30 includes an upper connecting portion 300 and a lower connecting portion 303. A plurality of first threads 301 are formed on the outer peripheral side of the upper connecting portion 300, and a first thread 301 is formed between the first threads 301. A gap 302, a plurality of second threads 304 are formed on the outer peripheral side of the lower connecting portion 303, and a second gap 305 is formed between the second threads 304. The first and second gaps 302, 305 and the bolt body The accommodating spaces 21 of 20 are connected to each other.

To further illustrate, the inner wall of the bolt body 20 also forms a first internal thread 22 and a second internal thread 23. The first internal thread 22 and the first thread 301 are arranged correspondingly and mutually assembled. The internal thread 23 and the second thread 304 are arranged correspondingly and assembled with each other, so that the connecting assembly 30 can be arranged in the most suitable position of the accommodating space 21 in the bolt body 20.

A sensing element 4 is provided correspondingly between the upper connecting portion 300 and the lower connecting portion 303, and the sensing element 4 is used to sense the change of the torque value. To further explain, in this embodiment, The sensing element 4 is further provided with a chip 6, on which at least one voltage stabilizing module 60 and at least one signal amplifier 61 are correspondingly arranged, and the chip 6 is fixed on the sensing element 4 by a cementing method And the phase electrical connection.

The glue layer 31 is correspondingly coated on the outer periphery of the upper and lower connecting portions 300, 303 On the other hand, in more detail, the adhesive layer 31 fills the first and second gaps 302, 305 correspondingly, so that the stress applied to the bolt body 20 can be completely transmitted to the sensing element 4, and the adhesive layer 31 is selected as an adhesive, and the adhesive is selected as an epoxy resin adhesive or other equivalents.

Please also refer to Figure 3, the aforementioned electrical storage element 5 is correspondingly disposed at the lower end of the lower connecting portion 303 and electrically connected to the torque module 3, and the electrical storage element 5 is used to supply the sensing In addition, in the present invention, the diameters of the upper connecting portion 300, the lower connecting portion 303, and the storage element 5 contained in the bolt sensing structure 2 are all different, so the upper connecting portion 300 is further defined It has a first diameter L1, the lower connecting portion 303 has a second diameter L2, the storage element 5 has a third diameter L3, the first diameter L1 is smaller than the second diameter L2, and the second diameter L2 Is smaller than the third diameter L3. However, the corresponding lengths of the first, second, and third diameters L1, L2, and L3 of the present invention are not limited to the foregoing. The upper and lower connecting portions 300, 303 and the storage element 5 The size of the diameter does not affect the purpose and effect of the present invention, which is explained first.

Please also refer to FIG. 3, which is a partially enlarged view of the second embodiment of the present invention. The adhesive layer 31 may further include a first adhesive layer 310 and a second adhesive layer 311. The layer 310 correspondingly fills the first gap 302 of the first thread 301, and the second adhesive layer 311 correspondingly fills the second gap 305 of the second thread 304. In other words, the first and second The adhesive layers 310, 311 can be made of the same or different materials to fill the first and second gaps 302, 305 correspondingly, without affecting the effect achieved (so that the stress applied to the bolt body 20 can be completely Transfer to the sensor 4).

In addition, it should be noted that the torsion module 3 further has a substrate 7 electrically connected to the sensing element 4, and the substrate 7 has a control module 70 and a radio frequency module 71 and a non The line coupling module 72 and a battery management module 73. The control module 70 has a storage module for storing at least one torque value. The radio frequency module 71 is used for storing the torque stored in the storage module. The value is transmitted to an external monitoring unit (not shown in the figure), the wireless coupling module 72 includes at least one signal transmission part and at least one power feed-in part, the power feed-in part and the storage element 5 and the battery management module 73 phases are electrically connected. The battery management module 73 is used to protect the storage element 5 from damage caused by overcharge and overdischarge. Since the components and their functions on the substrate 7 are conventional technologies, Here is only a brief description, let me explain first.

Therefore, through the design of this structure of the present invention, the sensing element 4 is separately arranged between the upper connecting portion 300 and the lower connecting portion 303, and the first and second threads are separated by the adhesive layer 31 The first and second gaps 302, 305 formed between 301 and 304 are completely filled, which not only greatly improves the detection of the stress applied to the bolt body 20, but also improves the accuracy of the detected stress value Sex.

Please continue to refer to Figure 4, which is a schematic diagram of the second embodiment of the bolt sensing structure of the present invention. The components of the bolt sensing structure and the corresponding relationship between the components are the same as the aforementioned bolt sensing structure. This will not be repeated here, but the main difference between the bolt sensing structure and the foregoing is that the sensing element 4 is further provided with a chip 6 on which at least one voltage stabilizing module 60 and at least one signal amplifier 61 are correspondingly arranged , A circuit board 8 is correspondingly disposed on the upper side of the upper connecting portion 300, and the chip 6 is fixed on the circuit board 8 through a cementing method and is electrically connected. In this embodiment, the sensing element 4 There are four sensing units 40 connected in parallel with each other for illustration, and the sensing units 40 are electrically connected to the circuit board 8 through a plurality of wires 9, which can also achieve the purpose of the aforementioned first embodiment. And efficacy.

Finally, please refer to Fig. 5 and Fig. 2 together, which is the bolt of the present invention Schematic diagram of the fourth embodiment of the sensing structure. The components of the bolt sensing structure and the corresponding relationship between the components are the same as those of the bolt sensing structure, so they will not be repeated here, but the bolt sensing structure is the same as the aforementioned bolt sensing structure. The main difference is that the outer peripheral side of the upper connecting portion 300 can be further formed with a step-like first fixing portion 306, and the outer peripheral side of the lower connecting portion 303 can be further formed with a step-like second fixing portion. The fixing portion 307, and the aforementioned glue layer 31 is correspondingly coated on the outer peripheral side of the first and second fixing portions 306, 307, and the inner wall of the bolt body 20 further forms a first butting portion 24 and a second Two mating parts 25, the first mating part 24 and the first fixing part 306 are arranged correspondingly and mutually assembled, and the second mating part 25 and the second fixing part 307 are arranged correspondingly and mutually assembled, so as to make The connecting assembly 30 is arranged at the most suitable position of the accommodating space 21 in the bolt body 20.

In other words, the stepped first and second fixing parts 306, 307 of this embodiment replace the aforementioned first and second threads 301, 304, which not only can also improve the application of the bolt body 20 In addition to the degree of stress detection, the accuracy of the detected stress value can be improved. In addition, the area of the adhesive layer coated on the outer circumference of the first and second fixing parts 306, 307 and its stability can be increased. Sex.

As mentioned above, the present invention has the following advantages over the prior art: 1. It greatly improves the stress detection degree; 2. It greatly improves the accuracy of the stress value.

The present invention has been described in detail above, but what is described above is only a preferred embodiment of the present invention, and should not limit the scope of implementation of the present invention, that is, all equivalent changes and modifications made in accordance with the scope of application of the present invention Etc., should still be covered by the patent of the present invention.

2‧‧‧Bolt sensing structure

21‧‧‧Accommodation space

22‧‧‧First internal thread

23‧‧‧Second internal thread

3‧‧‧Torque Module

30‧‧‧Connecting components

300‧‧‧Upper connecting part

301‧‧‧First thread

302‧‧‧First gap

303‧‧‧Lower connecting part

304‧‧‧Second thread

305‧‧‧Second gap

31‧‧‧Glue layer

4‧‧‧Sensing parts

5‧‧‧Power storage element

6‧‧‧Chip

60‧‧‧Regulator Module

61‧‧‧Signal Amplifier

7‧‧‧Substrate

70‧‧‧Control Module

71‧‧‧Radio frequency module

72‧‧‧Wireless coupling module

73‧‧‧Battery Management Module

Claims (9)

A bolt sensing structure includes: a bolt body with an accommodating space; a torsion module correspondingly installed in the accommodating space, the torsion module including: a connecting component, which includes a The upper connecting portion and the lower connecting portion, at least one sensing element is correspondingly disposed between the upper and lower connecting portions, the sensing element is used to sense the change of the torque value, the sensing element is further provided with a chip, the At least one voltage stabilizing module and at least one signal amplifier are correspondingly arranged on the chip, a circuit board is correspondingly arranged on the upper side of the upper connecting portion, and the chip is fixed on the circuit board and electrically connected; at least one glue The layer is correspondingly coated on the outer peripheral side of the upper and lower connecting parts; at least one electric storage element is electrically connected to the torsion module, and the electric storage element is used to supply electric energy to the sensing element. The bolt sensing structure according to claim 1, wherein the sensing element is further provided with a chip, and at least one voltage stabilizing module and at least one signal amplifier are correspondingly provided on the chip, and the chip is fixed to the sensor The test piece is connected electrically. The bolt sensing structure according to claim 1, wherein the sensing element further has four sensing units connected in parallel with each other, and the sensing units are electrically connected to the circuit board through a plurality of wires. The bolt sensing structure according to claim 1, wherein the power storage element is correspondingly disposed at the lower end of the lower connecting portion and electrically connected to the torque module. The bolt sensing structure according to claim 1, wherein the upper connecting portion has a first diameter, the lower connecting portion has a second diameter, and the storage element has a third diameter, and the first diameter is Smaller than the second diameter, the second diameter is smaller than the third diameter. The bolt sensing structure according to claim 1, wherein the outer peripheral side of the upper connecting portion is further formed with a plurality of first threads, a first gap is formed between the first threads, and the outer peripheral side of the lower connecting portion is formed A plurality of second threads, a second gap is formed between the second threads, and the glue layer correspondingly fills the first and second gaps so that the stress applied to the bolt body can be completely transmitted to all Mentioned on the sensing part. The bolt sensing structure according to claim 6, wherein the inner wall of the bolt body further forms a first internal thread and a second internal thread, the first internal thread and the first thread are arranged correspondingly, the The second internal thread is arranged corresponding to the second thread. The bolt sensing structure according to claim 6, wherein the glue layer further has a first glue layer and a second glue layer, the first glue layer correspondingly fills the first gap, and the second glue layer The layer system correspondingly fills the second gap. The bolt sensing structure according to claim 1, wherein the outer peripheral side of the upper connecting portion further forms a stepped first fixing portion, and the outer peripheral side of the lower connecting portion further forms a stepped second The fixing part, the adhesive layer is correspondingly coated on the outer peripheral side of the first and second fixing parts, the inner wall of the bolt body further forms a first butting part and a second butting part, the first butting part and The first fixing part is arranged correspondingly, and the second mating part is arranged correspondingly to the second fixing part.

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