Pre-tightening force compensation device based on RFID radio frequency technology

Abstract

A pretightening force compensation device based on the RFID radio frequency technology relates to the field of the RFID radio frequency technology and comprises a thread area contained in a bolt and a pretightening force compensation assembly connected with the thread area to provide pretightening force compensation, and an RFID tag and a positioning mechanism used for positioning the RFID tag are arranged in the thread area; the positioning mechanism comprises a placing hole formed in the threaded area and a positioning column connected with the RFID tag and used for moving the RFID tag into or out of the placing hole, and the placing hole is sequentially composed of a protection area, a positioning area and a storage area from top to bottom in the length direction of the bolt, wherein the protection area is a special-shaped through groove, the positioning area is matched with the positioning column, and the storage area is used for storing the RFID tag. Therefore, a specific worker can quickly take down the RFID tag on the basis of stably positioning the RFID tag.

Description

Technical Field

[0001] The utility model relates to the technical field of RFID radio frequency technology, in particular to a preload compensation device based on RFID radio frequency technology. Background Art

[0002] The function of the preload compensation device is to apply preload compensation to the corresponding bolt structure. After applying preload compensation to the corresponding bolt, the influence of vibration, impact, temperature change and other factors on the bolt connection performance can be reduced. For example, the combination of spring washers and nuts can be used.

[0003] Using a preload compensation component alone to maintain the preload of bolts and nuts cannot completely prevent the bolts from loosening and losing their connection function, so a preload compensation device based on RFID technology to determine the working status of the bolt has emerged. However, when the above method is used, the RFID tag is mostly exposed, so anyone can deliberately tear off the RFID tag, causing the RFID tag to lose its function. The exposed RFID tag has a strong adhesive force due to positioning needs, so it will also cause specific staff to be unable to conveniently remove the RFID. That is, it is not convenient for specific personnel to replace the damaged RFID tag, or remove the intact RFID tag from the damaged bolt and continue to use it. This increases the loss of the RFID tag and the corresponding structure to a certain extent. Utility Model Content

[0004] The utility model aims to provide a preload force compensation device based on RFID radio frequency technology, so as to facilitate specific staff to quickly remove the RFID tag on the basis of being able to stably position the RFID tag.

[0005] In order to solve the above technical problems, the specific solution adopted by the utility model is:

[0006] A preload force compensation device based on RFID radio frequency technology, comprising a threaded area included in a bolt and a preload force compensation component connected to the threaded area to provide preload force compensation, wherein an RFID tag and a positioning mechanism for positioning the RFID tag are provided in the threaded area;

[0007] The positioning mechanism includes an insertion hole opened in the threaded area and a positioning column connected to the RFID tag for moving it into or out of the insertion hole. The insertion hole is composed of a protection area which is a special-shaped through groove, a positioning area which cooperates with the positioning column, and a storage area for storing the RFID tag from top to bottom along the length direction of the bolt.

[0008] As a further optimization of the preload force compensation device based on RFID radio frequency technology of the utility model, the positioning area is an internal threaded hole, and the positioning column is a threaded column with a special-shaped hole on the outer end surface.

[0009] As a further optimization of the preload force compensation device based on RFID radio frequency technology of the utility model, the positioning area is a circular hole with a damping ring on the inner wall, the outer circumference of the positioning column is provided with a groove matching the damping ring, and the top surface of the positioning column is provided with a threaded hole.

[0010] As a further optimization of the preload force compensation device based on RFID radio frequency technology of the utility model, the preload force compensation component is a combination of a bidirectional nut, an eccentric nut, a locking nut or a spring washer and a fastening nut.

[0011] As a further optimization of the preload force compensation device based on RFID radio frequency technology of the utility model, a protective sheet sleeved on the threaded area is provided at the lower end of the preload force compensation component.

[0012] As a further optimization of the preload force compensation device based on RFID radio frequency technology of the utility model, a plug pad is clamped in the protection area, and the plug pad is made of rubber.

[0013] As a further optimization of the preload force compensation device based on RFID radio frequency technology of the utility model, an elastic sleeve is provided between the plug pad and the preload force compensation component, and the elastic sleeve is made of a plastic film.

[0014] As a further optimization of the preload force compensation device based on RFID radio frequency technology of the utility model, an auxiliary groove penetrating the threaded area is opened on the inner wall of the storage area for allowing the RFID tag signal to pass through with a low blocking rate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The present invention uses a positioning mechanism provided in the threaded area to stably place the RFID tag and quickly remove it. Specifically, a positioning column included in the positioning mechanism is placed in the insertion hole for positioning by a specific tool, and then the RFID tag connected to the positioning column is positioned in the insertion hole for stable storage. When removing the RFID tag, the positioning column can be removed from the insertion hole using a specific tool, so that the RFID tag can be removed quickly and on the basis of a limited number of people. Therefore, when the RFID tag needs to be replaced or removed for continued use, it can be easily replaced and used, thereby reducing the loss of the RFID tag within a certain period of time.

[0017] As a further optimization of the utility model, an auxiliary groove penetrating the threaded area is provided on the inner wall of the storage area of ​​the insertion hole, and the auxiliary groove can allow the RFID tag signal to pass through with a low blocking rate, thereby maintaining the electronic signal transmission performance of the RFID tag to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of an enlarged cross-section structure of Example 1 of the utility model;

[0020] Figure 3 It is a schematic diagram of the enlarged cross-section structure of Example 2 of the present utility model.

[0021] Figure numerals: 1. bolt, 101. threaded area, 2. preload compensation assembly, 3. plug pad, 4. elastic sleeve, 5. protective sheet, 6. RFID tag, 7. positioning mechanism, 701. insertion hole, 7011. protection area, 7012. positioning area, 7013. storage area, 702. positioning column, 703. auxiliary groove. DETAILED DESCRIPTION

[0022] Example 1

[0023] The utility model includes a positioning mechanism 7 provided in the threaded area 101, and the positioning mechanism 7 is used to position the RFID tag 6 in the threaded area 101. The positioning mechanism 7 also facilitates a specific staff member holding a specific tool to remove the RFID tag 6 positioned by the positioning mechanism 7 for corresponding component replacement, thereby reducing the loss of the RFID tag 6 within a certain period of time. The following will be further described in conjunction with the following embodiments:

[0024] like Figure 1 and Figure 2 As shown, the threaded area 101 is arranged on the bolt 1, and the preload compensation component 2 can cooperate with the threaded area 101 to provide preload compensation to the bolt 1 to maintain the connection function of the bolt 1, that is, to reduce the probability of connection failure of the bolt 1 due to external influences. The preload compensation component 2 is a combination of a bidirectional nut, an eccentric nut, a fastening nut or a spring washer and a fastening nut. The preload compensation component 2 can provide preload compensation for the bolt 1, thereby assisting the bolt 1 to resist loosening caused by interference from external factors, thereby reducing the probability of failure of the connection function of the bolt 1.

[0025] The positioning mechanism 7 includes an insertion hole 701 provided in the threaded area 101 and a positioning column 702 connected to the RFID tag 6 for moving it into or out of the insertion hole 701. The insertion hole 701 is composed of a protective area 7011 which is a special-shaped hole, a positioning area 7012 which cooperates with the positioning column 702, and a storage area 7013 for storing the RFID tag 6 along the length direction of the bolt 1. The protective area 7011 which is a special-shaped through groove can reduce the possibility of contact between a person who does not hold a specific tool and the positioning column 702 in the positioning area 7012, thereby achieving the effect of limiting the control of the positioning column 702 by a specific person holding a specific tool, thereby reducing the probability that anyone can deliberately remove the RFID tag 6 from the bolt 1, that is, to a certain extent, reduce the loss of the RFID tag 6 due to human factors. The setting of the storage area 7013 can stably place the RFID tag 6, thereby maintaining the connection stability of the RFID tag 6 and the bolt 1, thereby achieving the purpose of using the RFID tag 6 to detect the working state of the bolt 1.

[0026] The positioning area 7012 is an internal threaded hole, and the positioning column 702 is a threaded column with a special-shaped hole on the outer end face. The outer diameter of the positioning column 702 with a special-shaped hole on the outer end face is smaller than the minimum inner diameter of the protection area 7011 with a special-shaped through groove, so that it is convenient for a specific staff member to pass a specific tool through the protection area 7011 with a special-shaped through groove to connect and link the specific tool with the special-shaped hole on the outer end face of the positioning column 702, and then the specific staff member can use the rotation of the specific tool to realize the rotation of the positioning column 702. The rotation of the positioning column 702 with a threaded column will spirally separate from the positioning area 7012 with an internal threaded hole, and then the specific staff member can take out the positioning column 702 and drive the RFID tag 6 adhered to the positioning column 702 to be taken out synchronously, so that the specific staff member can conveniently take out the RFID tag 6 for reuse or replace the damaged part, thereby reducing the loss of the RFID tag 6 caused by the bolt 1.

[0027] The lower end of the preload compensation component 2 is provided with a protective sheet 5 sleeved on the threaded area 101, and the provision of the protective sheet 5 can protect the surface of the object connected by the bolt 1. The protective sheet 5 can also increase the contact area between the preload compensation component 2 and the surface of the object connected by the bolt 1, and then further provide anti-loosening force for the bolt 1 on the basis of the preload compensation component 2 providing the preload force to prevent the bolt 1 from loosening, thereby improving the anti-loosening effect of the bolt 1.

[0028] A plug pad 3 is connected in the protection area 7011, and the plug pad 3 is made of rubber. An elastic sleeve 4 is provided between the plug pad 3 and the preload compensation component 2, and the elastic sleeve 4 is made of a plastic film. The setting of the plug pad 3 can block the insertion hole 701, thereby preventing impurities from entering the insertion hole 701 and causing damage to the RFID tag 6, and at the same time, it can also reduce the probability of dirt affecting the insertion hole 701 and causing rust damage to the insertion hole 701. The plastic film material of the elastic sleeve 4 can adapt to the rotation of the preload compensation component 2, and at the same time, it can also be tightly attached to the outer peripheral surface of the threaded area 101 while rotating, thereby protecting the threaded area 101 and reducing damage to the threaded area 101 by external factors, such as rusting of the threaded area 101 due to rainwater, thereby reducing the probability of preload compensation failure of the preload compensation component 2 due to rusting of the threaded area 101 to a certain extent.

[0029] An auxiliary groove 703 is provided on the inner wall of the storage area 7013, which penetrates the threaded area 101 and allows the RFID tag 6 signal to pass through with a low blocking rate. The auxiliary groove 703 is provided individually and is relatively narrow, thereby reducing the damage of the RFID tag 6 by external debris.

[0030] During the specific installation, the specific staff can hold a specific tool, that is, a screwdriver that matches the special-shaped hole on the outer end face of the positioning column 702 to connect with the positioning column 702, and then the positioning column 702 and the specific tool can pass through the protective area 7011 of the special-shaped through groove to correspond to the positioning area 7012 of the internal threaded hole. Then, the specific tool is rotated to rotate the positioning column 702, so that the positioning column 702 is threadedly connected with the positioning area 7012, so that the RFID tag 6 is positioned in the storage area 7013 for stable positioning and storage, and then the preload compensation component 2 can be installed, and then the corresponding plug pad 3 is positioned in the protective area 7011 to protect the insertion hole 701, and the elastic sleeve 4 can be tightened on the outer peripheral surface of the threaded area 101 to isolate and protect it. After the RFID tag 6 is stably placed in the bolt 1, the corresponding specific staff can use the RFID tag 6 and the supporting equipment and structure to realize the detection of the connection function of the bolt 1, and can locate the position of the bolt 1 to a certain extent to facilitate the specific staff to find the damaged bolt 1. When the RFID tag 6 needs to be removed, the above installation operation can be reversed to achieve the purpose, that is, on the basis of limiting the removal of the RFID tag 6 by specific personnel, it is convenient for specific staff to achieve the purpose of replacing the damaged RFID tag 6 or removing it for reuse, thereby reducing the loss rate of the RFID tag 6.

[0031] The above are basic embodiments of the present invention, and further improvements, optimizations and limitations can be made on the above basis to obtain the following embodiments:

[0032] Example 2

[0033] This embodiment further describes the structure of the positioning area 7012 and the positioning column 702 based on the embodiment 1. The main structure is the same as that of the embodiment 1. Figure 3 As shown, the positioning area 7012 is a circular hole with a damping ring on the inner wall, and the outer peripheral surface of the positioning column 702 is provided with a groove matching the damping ring. The coordination of the damping ring and the groove can conveniently snap the positioning column 702 into the positioning area 7012, and then use the positioning column 702 to position the RFID tag 6 in the storage area 7013 for stable storage, thereby realizing the signal transmission detection function of the RFID tag 6. The top surface of the positioning column 702 is provided with a threaded hole, so that it is convenient for a specific staff member to use a specific tool, such as a threaded column adapted to the threaded hole, to connect with the positioning column 702, so that it is convenient for a specific staff member to pull the positioning column 702 out of the positioning area 7012 or dock it in, so that it is convenient for a specific staff member to hold a specific tool to quickly take out the RFID tag 6, and then replace or reuse the damaged RFID tag 6.

[0034] The parts not explained in the above embodiments, such as how the RFID tag 6 cooperates with the corresponding equipment or structure to detect the connection functionality of the bolt 1, and how the RFID tag 6 cooperates with the corresponding equipment or structure to locate itself for easy finding by specific staff, should be understood as existing technologies known or should be known to those skilled in the art.

Claims

1. A preload force compensation device based on RFID radio frequency technology, comprising a threaded area (101) included in a bolt (1) and a preload force compensation component (2) connected to the threaded area (101) to provide preload force compensation, characterized in that: An RFID tag (6) and a positioning mechanism (7) for positioning the RFID tag (6) are provided in the threaded area (101); The positioning mechanism (7) comprises an insertion hole (701) provided in the threaded area (101) and a positioning column (702) connected to the RFID tag (6) for moving the RFID tag (6) into or out of the insertion hole (701). The insertion hole (701) is composed of a protective area (7011) which is a special-shaped through groove, a positioning area (7012) which cooperates with the positioning column (702), and a storage area (7013) for storing the RFID tag (6) from top to bottom along the length direction of the bolt (1).

2. The preload force compensation device based on RFID radio frequency technology according to claim 1 is characterized in that: The positioning area (7012) is an internal threaded hole, and the positioning column (702) is a threaded column with a special-shaped hole on the outer end surface.

3. The preload force compensation device based on RFID radio frequency technology according to claim 1 is characterized in that: The positioning area (7012) is a circular hole with a damping ring on the inner wall, the outer peripheral surface of the positioning column (702) is provided with a groove matching the damping ring, and the top surface of the positioning column (702) is provided with a threaded hole.

4. The preload force compensation device based on RFID radio frequency technology according to claim 1 is characterized in that: The preload force compensation component (2) is a bidirectional nut, an eccentric nut, a locking nut, or a combination of a spring washer and a fastening nut.

5. The preload force compensation device based on RFID radio frequency technology according to claim 1 is characterized in that: The lower end of the preload compensation component (2) is provided with a protective sheet (5) sleeved on the threaded area (101).

6. The preload force compensation device based on RFID radio frequency technology according to claim 1 is characterized in that: A plug pad (3) is clamped in the protection area (7011), and the plug pad (3) is made of rubber.

7. The preload force compensation device based on RFID radio frequency technology according to claim 6 is characterized in that: An elastic sleeve (4) is provided between the plug pad (3) and the preload compensation component (2), and the elastic sleeve (4) is made of a plastic film.

8. The preload force compensation device based on RFID radio frequency technology according to claim 1 is characterized in that: An auxiliary groove (703) penetrating the threaded area (101) is provided on the inner wall of the storage area (7013) for allowing the RFID tag (6) signal to pass through with a low blocking rate.

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