A fastener fixing claw and a fastener

Abstract

The utility model relates to the technical field of anti -slip fastener, disclose a kind of fastener fixed jaw and fastener, the fastener includes fixed jaw body and nut rotationally connected in the one end of fixed jaw body, fixed jaw body includes oppositely arranged first plate and second plate;Space defined between first plate and second plate and is equipped with intelligent module, along the thickness direction of first plate and second plate, claw includes the first claw that first plate extends, the second claw that second plate extends, the projection of first claw, second claw and the projection of intelligent module do not coincide. Therefore, it sets up intelligent module in the installation space defined thereby, to accommodate intelligent module using the structural features of fixed jaw itself, to add intelligent module to realize additional functions such as communication, tension detection on the basis of not changing classic fixed jaw structure;Therefore, fastener fixed jaw retains reasonable structure while realizing the installation of intelligent module.

Description

Technical Field

[0001] This utility model relates to the field of anti-slip fastener technology, and in particular to a fastener fixing claw and a fastener. Background Technology

[0002] In the prior art, in order to improve work efficiency and management capabilities of fasteners, an intelligent module can be set on the anti-slip fastener to obtain the status of the corresponding fastener; for example, the patent with publication number CN214277257U realizes intelligent management of fasteners by setting a central processing module.

[0003] However, existing fasteners with intelligent modules have changed their overall structure due to the increased number of components they work with (i.e., the addition of intelligent modules). Compared with the conventional and classic fastener structure, the structural changes after adding intelligent modules are very unreasonable. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a fastener fixing claw and a fastener, wherein the fastener fixing claw is equipped with an intelligent module to maintain its classic configuration and the structural design is more reasonable.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] This application discloses a fastener fixing claw, including a fixing claw body and a nut rotatably connected to one end of the fixing claw body. The end of the fixing claw body away from the nut is bent and extends out to form a claw. The fixing claw body includes a first plate and a second plate disposed opposite to each other. A smart module is installed in the space defined between the first plate and the second plate. Along the thickness direction of the first plate and the second plate, the claw includes a first claw extending from the first plate and a second claw extending from the second plate. The projections of the first claw and the second claw do not coincide with the projection of the smart module.

[0007] According to the fastener fixing claw in the embodiments of this application, the intelligent module is set in its defined installation space, thereby utilizing the structural characteristics of the fixing claw itself to accommodate the intelligent module, so as to add an intelligent module to realize additional functions such as communication and tensile force detection without changing the classic fixing claw structure; therefore, the fastener fixing claw can realize the installation of the intelligent module while retaining a reasonable structure.

[0008] Furthermore, a connecting plate perpendicular to the first plate and the second plate is connected between the first plate and the second plate, and the connecting plate, the first plate and the second plate define a space for accommodating the smart module; wherein, the connecting plate is a bent plate and is bent in the direction towards the claw to define a battery mounting slot for setting the battery.

[0009] Furthermore, the connecting plate is also constructed with through holes, and a contact charging interface that communicates with the battery is installed inside the through holes.

[0010] Furthermore, the two side walls of the contact charging interface are flush with the two side walls of the connecting plate in the thickness direction.

[0011] Furthermore, the intelligent module includes a housing fixedly disposed between the first plate and the second plate, the housing being used to house the main control board of the intelligent module; the housing has a relief groove at one end near the nut, the relief groove being used to avoid the movement of the screw in the fastener.

[0012] Furthermore, a tension sensor is installed inside the nut.

[0013] Furthermore, the nut includes a threaded section, a strain section, and a connecting section constructed sequentially along its axial direction; the threaded section is provided with an internal thread for threaded connection with the screw; a tension sensor is provided in the strain section; and the connecting section is rotatably connected to the fixed claw body.

[0014] Furthermore, the fixing claw body and the nut are connected by a rotating shaft, and the wires from the tension sensor are led from inside the rotating shaft to the intelligent module.

[0015] Furthermore, it also includes a protective cover; the wiring connecting the tension sensor and the smart module is partially hidden inside the nut and the fixing claw, and the rest is hidden inside the protective cover.

[0016] This application also discloses a fastener, including the fastener fixing claw and the screw, wherein the fastener fixing claw is connected to the screw via a nut. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the fastener retaining claw structure according to some embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the structure of the hidden intelligent module for the fastener fixing claw according to some embodiments of this application;

[0019] Figure 3 This is a schematic diagram of a connecting plate structure according to some embodiments of this application;

[0020] Figure 4 This is a schematic diagram of the internal structure of the fastener retaining claw according to some embodiments of this application;

[0021] Figure 5 This is a schematic diagram of the connection board and contact charging interface according to some embodiments of this application;

[0022] Figure 6 This is another schematic diagram of the structure of the connection board and the contact charging interface according to some embodiments of this application;

[0023] Figure 7 This is an exploded view of the fastener retaining claw according to some embodiments of this application;

[0024] Figure 8 This is a schematic diagram of the fastener retaining claw from another angle according to some embodiments of this application;

[0025] Figure 9 This is a schematic cross-sectional view of a nut according to some embodiments of this application;

[0026] Figure 10 The diagram shows a nut structure according to some embodiments of this application;

[0027] Figure 11 This is a schematic diagram of a fastener retaining claw concealing a second protective cover according to some embodiments of this application;

[0028] Figure 12 This is a schematic diagram of the fastener retaining claw from another angle according to some embodiments of this application;

[0029] Figure 13 This is a schematic diagram of a fastener structure according to some embodiments of this application;

[0030] Figure 14 This is a schematic diagram of the nut structure according to some embodiments of this application;

[0031] Figure 15 A side view of a nut according to some embodiments of this application;

[0032] Figure 16 This is a rear view of a nut according to some embodiments of this application;

[0033] Figure 17 This is a front view of a nut according to some embodiments of this application;

[0034] Figure 18 This is a top view of a nut according to some embodiments of this application;

[0035] Figure 19 This is a bottom view of a nut according to some embodiments of this application;

[0036] Figure 20 This is a schematic diagram of another nut and protective cover according to some embodiments of this application.

[0037] In the picture:

[0038] 100-Fastener retaining claw;

[0039] 110-fixed claw body;

[0040] 111-First board, 1111-First claw, 1112-Cable routing hole, 1113-Cable routing groove, 112-Second board, 1121-Second claw, 113-Connecting board, 1131-Front board, 1132-Rear board

[0041] 120-nut;

[0042] 121-Threaded section, 122-Strain section, 123-Connecting section, 124-Tension sensor;

[0043] 130 - Shaft, 131 - Channel

[0044] 140 - Intelligent Module;

[0045] 141-Battery, 1411-Contact charging interface, 1412-Standard charging port, 142-Housing shell, 143-Cover plate, 144-Main control board;

[0046] 151 - First protective cover, 152 - Second protective cover;

[0047] 200 - Screw, 210 - Hook;

[0048] a-Battery mounting slot, b-Through hole, c-Groove, d-Allowing groove, e-Cavity. Detailed Implementation

[0049] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0050] Furthermore, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] Next, see Figures 1-13 Understand a fastener fixing claw 100 and a fastener 10 according to an embodiment of this application.

[0053] First, refer to Figures 1-12 This application describes the fastener fixing claw 100 in an embodiment of the present application.

[0054] refer to Figure 1 As shown, it includes a fixing claw body 110 and a nut 120 rotatably connected to one end of the fixing claw body 110. The nut 120 is used to connect with the screw 200 of the fastener 10. The end of the fixing claw body 110 away from the nut 120 extends out as a claw along a bend; as Figure 1 In the middle, one end of the fixed claw body 110 is connected to the nut 120 through the rotating shaft 130, and the other end extends out a bent claw with the end of the claw facing the fixed claw body 110, so that a certain locking space is formed between the claw and the fixed claw body 110, thereby allowing the claw to be hooked onto the locomotive through the locking space.

[0055] In detail, refer to Figure 2 As shown, the fixing claw body 110 includes a first plate 111 and a second plate 112 disposed opposite to each other. One end of the first plate 111 is rotatably connected to the nut 120, and the other end is bent and extends to form a first claw 1111. One end of the second plate 112 is rotatably connected to the nut 120, and the other end is bent and extends to form a second claw 1121. A smart module 140 is installed in the space defined between the first plate 111 and the second plate 112, and the projections of the first claw 1111 and the second claw 1121 do not coincide with the projection of the smart module 140 along the thickness direction of the first claw 1111 and the second claw 1121. In other words, the smart module 140 is located between the first plate 111 and the second plate 112, and its installation position ensures that it does not coincide with the clamping area of ​​the claw, thereby preventing the smart module 140 from affecting the fastener fixing claw 100 from being clamped to the locomotive.

[0056] Of course, the first plate 111 and the second plate 112 mentioned above can be arranged opposite each other in any direction; and if the space for setting the intelligent module 140 is defined by multiple surfaces, then any two opposite surfaces should be understood as the first plate 111 and the second plate 112 in this embodiment. It is worth noting that with the development of information technology and electronic hardware technology, the anti-slip fastener 10 can also be equipped with an intelligent module 140 for information acquisition and information transmission, and for this purpose, an intelligent module 140 is provided in some fasteners 10. Therefore, the intelligent module 140 in this embodiment can be any existing electronic device with information acquisition and information transmission capabilities, so as to realize the intelligent management of the anti-slip fastener 10 through the intelligent module 140.

[0057] To achieve the aforementioned functions, the intelligent module 140 typically requires a certain volume. In this embodiment, the fastener fixing claw 100 utilizes the structural characteristics of its own body to house the intelligent module 140 internally. This achieves the purpose of incorporating the intelligent module 140 without significantly altering the size of the fastener 10 itself. This avoids the problem of increased size and bulkiness of the anti-slip fastener 10 due to the inclusion of the intelligent module 140. Therefore, in this embodiment, the inclusion of the intelligent module 140 in the fastener fixing claw 100 does not drastically alter the overall structure, thus preserving existing usage and storage methods.

[0058] Therefore, it can be understood that, after being informed of the contents disclosed in this application, those skilled in the art can, without setting up opposing first plates 111 and second plates 112, simply construct a semi-enclosed space, such as setting up only one side plate and fixing the smart module 140, or fix the smart module 140 with two adjacent plates or similar structures, so that it is located within the space that should itself be the fastener body 110. All of these should be considered equivalent alternatives to the invention concept of setting up the smart module 140 using the volume of the fastener body 110 itself in this application. These are equivalent alternatives that can be conceived without creative effort.

[0059] Furthermore, in actual use, the hook 210 and screw 200 in the fastener 10 are fixed to the underside of the vehicle body, meaning they need to be secured to the chains beneath the vehicle body; while the fixing claw is fixed to the outer side of the vehicle body, meaning it needs to be fixed to the ribs on the edge of the locomotive. Therefore, the hook 210 and screw 200 in the fastener 10 are located in a narrow area under the locomotive, and the locomotive itself, being made of metal, creates a signal shielding area underneath. In other words, in scenarios where the intelligent module 140 has communication functions, placing the intelligent module 140 within the fixing claw located on the outer side of the vehicle body can effectively avoid signal attenuation due to the locomotive's own obstruction.

[0060] In other words, the fastener fixing claw 100 in this embodiment of the application sets the intelligent module 140 within its defined installation space, thereby utilizing the structural characteristics of the fixing claw body 110 itself to accommodate the intelligent module 140, so as to add the intelligent module 140 to realize additional functions such as communication and tensile force detection without changing the classic fastener fixing claw structure; therefore, the fastener fixing claw 100 realizes the installation of the intelligent module 140 while retaining a reasonable structure.

[0061] exist Figure 2 In the example, a connecting plate 113 perpendicular to the first plate 111 and the second plate 112 connects the first plate 111 and the second plate 112; the connecting plate 113, the first plate 111, and the second plate 112 define a space for accommodating the smart module 140. The aforementioned perpendicularity is only an arrangement in this example and some other examples, and does not exclude arrangements other than perpendicularity from the protection scope of this application, such as forming obtuse angles or acute angles.

[0062] refer to Figure 3 As shown, the connecting plate 113 is a bent plate and is bent in the direction of the claw to define the battery mounting groove a; specifically, the connecting plate 113 includes a front section plate 1131 with a C-shaped structure and a rear section plate 1132 with an L-shaped structure. The two sides of the C-shaped front section plate 1131 are connected to the first plate 111 and the second plate 112 to define the aforementioned battery mounting groove a. The L-shaped structure of the rear section plate 1132 is bent in the direction of the claw, and its end is attached to the side wall of the opening section of the front section plate 1131.

[0063] It is worth noting that since the smart module 140 integrates several electronic devices, a battery 141 is required to power the smart module 140. Due to cost constraints and the technology of the battery 141, the battery 141 installed in the smart module 140 occupies a considerable amount of space. To address this, a battery mounting slot a is provided on the connecting plate 113 to accommodate the battery 141, which better utilizes the space of the fastener fixing claw 100. Figure 4 As shown, the battery 141 is housed in the battery 141 receiving slot formed by the front plate 1131, and other parts are provided on it.

[0064] Furthermore, the connecting plate 113 also has a through hole b, and a contact charging interface 1411 is installed in the through hole b. The contact charging interface 1411 is connected to the battery 141 to charge the battery 141. In this way, automatic charging can be achieved through the contact charging interface 1411. That is, the operator only needs to place the fastener 10, which is equipped with the fastener fixing claw 100 of this embodiment, back into the corresponding position in the appliance box, and automatic charging will be achieved without the need for manual wiring or other extra steps, saving time and effort. In some examples, a fuse is provided between the contact charging interface 1411 and the battery 141. The fuse is adapted to melt and break when the current of the contact charging interface is overloaded to protect the circuit.

[0065] refer to Figure 5 and Figure 6 As shown, the two side walls of the contact charging interface 1411 are flush with the two side walls of the connecting plate 113 along the thickness direction at the through hole b. The side away from the smart module 140 is flush to facilitate charging of the contact charging interface 1411. The part on the side of the smart module 140 is flush to ensure the stability of the charging module while maximizing the placement of the battery 141.

[0066] In addition, such as Figure 6 As shown, the connecting plate 113 is also provided with a groove c, which is used to set an RFID electronic tag. When the fastener 10 is put back into the equipment box, the RFID identification module of the equipment box can read the unique identifier of the fastener 10 in real time, so as to realize the real-time monitoring of the status of each fastener 10 in the cabinet.

[0067] Continue to refer to Figure 1 and combined Figure 7 The intelligent module 140 includes a housing 142 fixedly disposed between the first plate 111 and the second plate 112. Multiple sidewalls of the housing 142 are respectively fitted to the connecting plate 113, the first plate 111, and the second plate 112 to match their contours. An opening is formed on the side of the housing 142 away from the gripper, and a cover plate 143 is fitted thereon. A main control board 144 for implementing various intelligent functions is disposed within the enclosed space defined by the cover plate 143 and the housing 142.

[0068] In other examples, the open side of the housing 142 faces the battery, and the bottom wall of the housing 142 is provided with a main control board 144 so that part of the battery 141 can be located within the space defined by the housing 142, so as to maximize the storage space of the battery 141.

[0069] like Figure 7 As shown, the housing 142 has a relief groove d at one end near the nut 120, which is used to allow movement of the screw 200 in the fastener 10.

[0070] Specifically, after the smart module 140 is provided on the fastener fixing claw 100, when the nut 120 rotates to move along the axial direction of the screw 200, the smart module 140 may interfere with the movement trajectory of the screw 200. Therefore, the clearance groove d is provided for clearance.

[0071] refer to Figure 8 As shown, the battery 141 is also provided with a conventional charging port 1412, specifically a TYPE-C charging interface, so that the fastener 10 can be charged using the conventional charging port 1412 when it cannot be returned to the appliance box for charging during long-term operation.

[0072] To monitor the locking force of the fastener 10 in real time and determine whether the fastener 10 is properly locked, the magnitude change of the tension in the axial direction of the fastener 10 can be collected to determine whether slippage has occurred. Thus, precise digital display of the tension automatically identifies and warns of abnormalities such as loosening or breakage, effectively preventing slippage.

[0073] Therefore, in some embodiments, a tension sensor 124 is provided inside the nut 120.

[0074] refer to Figure 9 As shown, the nut 120 has a cavity e inside, and the tension sensor 124 is a strain gauge installed on the wall of the cavity e. The strain gauge obtains the tension change data between the fixing claw and the screw 200 by detecting the deformation of the nut 120 along its own axis.

[0075] In detail, Figure 9 In the example shown, the nut 120 includes an integrally formed threaded section 121, a strain section 122, and a connecting section 123 constructed along its axial direction. The threaded section 121 has internal threads for threaded connection with the screw 200, the strain section 122 has the aforementioned chamber e for housing a strain gauge, and the connecting section 123 has two shaft holes for rotatable connection with the fixing claw body 110 via a rotating shaft 130.

[0076] In use, because the internal thread of the threaded section 121 is tightly fitted with the screw 200, when the screw 200 is rotated by the torque wrench, the position of the sensor on the screw 200 changes, and an axial tensile force is generated between the fastener fixing claw 100 and the hook 210 connected to the screw 200, and the magnitude of the tensile force changes accordingly; the strain gauge in the strain section 122 detects and obtains the corresponding tensile force data. Specifically, when the axial nut 120 is axially stretched as a whole, the steel material undergoes axial deformation, and the resistance value of the resistance strain gauge attached to the material surface changes, which is ultimately converted into an electrical signal and output to the intelligent module 140 through the material deformation. Thus, when the fastener 10 is tightened, the sensing structure of the tension sensor 124 deforms, and the internal intelligent module 140 converts the deformation into an electrical signal and transmits it to the intelligent module 140, thereby monitoring the status of the fastener 10 on the track in real time and transmitting it back to the control center in real time.

[0077] It is understood that the nut 120 in this embodiment only slightly increases its overall length and diameter, and does not significantly alter the structure of the classic fastener fixing claw 100. The improved nut 120 structure replaces the traditional nut 120, thereby adding tensile monitoring and data output functions while still fulfilling the functions of the traditional nut 120, achieving intelligent and digital management. Furthermore, in some preferred examples, the tensile sensor 124 uses a strain gauge, which has high detection accuracy with an error of less than 0.3%, accurately reading the force magnitude and setting the tensile threshold. This avoids the potential risks caused by inaccurate traditional human estimation and achieves precise monitoring.

[0078] Furthermore, by placing the tension sensor 124 in the nut 120 and the smart module 140 in the fixing claw body 110, since the two are adjacent components in the fastener fixing claw 100, the wiring arrangement between the smart module 140 and the tension sensor 124 can be minimized. This avoids the problems of complicated wiring leading to storage difficulties and easy damage to the wiring, making the wiring arrangement more reasonable and the wiring structure simpler.

[0079] Next, we will provide a detailed description of the wiring layout structures in some examples.

[0080] The fastener retaining claw 100 also includes protective covers, which in this example include a first protective cover 151 disposed on the nut 120 and a second protective cover 152 disposed on the retaining claw body 110; of course, those skilled in the art, based on their understanding of the first protective cover 151 and the second protective cover 152, can conceive of embodiments using only one protective cover or more protective covers.

[0081] like Figure 10As shown, the wire extends from the strain section 122 of the nut 120, and is externally protected by a first protective cover 151. The wire then connects to the rotating shaft 130, which has a channel 131 for the wire to pass through. Furthermore, to ensure the rigidity of the connecting section 123, the peripheral portion of the rotating shaft 130 is planar. Figure 1 As shown, a second protective cover 152 is provided at the end of the rotating shaft 130 on one side where the channel 131 is provided, to protect the wiring leading out of the rotating shaft 130; as Figure 11 As shown, the wiring extends from the pivot 130 to the first plate 111. The first plate 111 has wiring holes 1112 for the wiring to pass through, and the wiring holes 1112 are also covered by the second protective cover 152. Figure 12 As shown, a wiring channel 1113 is provided on the other side of the first board 111 to hide the wiring, and finally the wiring is connected to the smart module 140 through the wiring channel 1113.

[0082] Therefore, by concealing the wiring within the nut 120 and the fixing claw body 110, the wiring is arranged as a concealed wiring, thereby avoiding damage to the wiring due to collisions or other reasons. It should also be understood that this concealed wiring arrangement is based on the fact that the nut 120 and the fixing claw body 110 are adjacent structures, thus eliminating the need for excessively long wiring.

[0083] In other embodiments, the wiring of the fastener 10 is slightly different, see reference 10. Figures 14-19 To understand the structure of nut 120 from various perspective views, and refer to Figure 20 As shown, the protective cover in the example includes a flat first protective cover 151 disposed on the nut 120 and a second protective cover 152 disposed on the fixing claw body 110. The lead wire is led out from the side wall of the nut 120, so that the first protective cover 151 has a straight plate structure and does not need to be processed in the narrow area between the fixing claw body 110 and the nut 120, reducing the processing difficulty.

[0084] refer to Figure 13 The fastener 10 of this application is illustrated in the figure.

[0085] The fastener 10 in this embodiment includes the fastener fixing claw 100 in the above embodiment, and a screw 200 connected to the fastener fixing claw 100 by a nut 120. A hook 210 is provided at the end of the screw 200 away from the fastener fixing claw 100 for hanging on the chain.

[0086] In summary, although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

[0087] It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A fastener retaining claw, comprising a retaining claw body and a nut rotatably connected to one end of the retaining claw body, wherein the end of the retaining claw body away from the nut is bent and extends to form a retaining claw, characterized in that, The fixing claw body includes a first plate and a second plate disposed opposite to each other; A smart module is installed in the space defined between the first board and the second board.

2. The fastener fixing claw according to claim 1, characterized in that, Along the thickness direction of the first plate and the second plate, the claw includes a first claw extending from the first plate and a second claw extending from the second plate, and the projections of the first claw and the second claw do not coincide with the projection of the smart module.

3. The fastener fixing claw according to claim 1 or 2, characterized in that, A connecting plate perpendicular to the first plate and the second plate is connected between the first plate and the second plate, and the connecting plate, the first plate and the second plate define a space for accommodating the smart module. The connecting plate is a bent plate, and is bent in the direction towards the claw to define a battery mounting slot for mounting the battery.

4. The fastener fixing claw according to claim 3, characterized in that, The connecting plate is also provided with a through hole, and a contact charging interface communicating with the battery is installed in the through hole, and a fuse is provided between the contact charging interface and the battery. The two side walls of the contact charging interface are flush with the two side walls of the connecting plate in the thickness direction.

5. The fastener fixing claw according to claim 1, characterized in that, The intelligent module includes a housing fixedly disposed between the first board and the second board, the housing being used to accommodate the main control board of the intelligent module; The housing has a clearance groove at one end near the nut, which is used to allow movement of the screw in the fastener.

6. The fastener fixing claw according to claim 1, characterized in that, A tension sensor is installed inside the nut.

7. The fastener fixing claw according to claim 6, characterized in that, The nut includes a threaded section, a strain section, and a connecting section constructed sequentially along its axial direction; The threaded section is provided with an internal thread, which is used for threaded connection with the screw. The tensile sensor is installed within the strain section; The connecting segment is rotatably connected to the fixed claw body.

8. The fastener fixing claw according to claim 6 or 7, characterized in that, The fixing claw body is connected to the nut via a rotating shaft, and the wire from the tension sensor is led from the rotating shaft to the smart module.

9. The fastener fixing claw according to claim 6 or 7, characterized in that, It also includes a protective shield; The wiring connecting the tension sensor and the smart module is partially hidden within the nut and the fixing claw, and the remainder is hidden within the protective cover.

10. A fastener, characterized in that, include: The fastener fixing claw and screw according to any one of claims 1-9, wherein the fastener fixing claw is connected to the screw via the nut.

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