CN219297982U - Intelligent force measuring cable clamp screw, stress calibration device and locking force monitoring system - Google Patents
Intelligent force measuring cable clamp screw, stress calibration device and locking force monitoring system Download PDFInfo
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- CN219297982U CN219297982U CN202320554356.4U CN202320554356U CN219297982U CN 219297982 U CN219297982 U CN 219297982U CN 202320554356 U CN202320554356 U CN 202320554356U CN 219297982 U CN219297982 U CN 219297982U
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Abstract
The utility model provides an intelligent force measuring cable clamp screw, a stress calibration device and a locking force monitoring system, wherein the intelligent force measuring cable clamp screw comprises a screw body, two groups of anti-loosening washers, two locking nuts, an ultrasonic sensor and a terminal controller, wherein the ultrasonic sensor and the terminal controller are arranged at the first end of the screw body; the ultrasonic sensor transmits ultrasonic signals and receives ultrasonic signals reflected back by the second end of the screw body; when the cable clamp screw is in an unoperated state, the terminal controller calibrates the stress coefficient of the screw body according to the reflection time of the ultrasonic signal when the screw body is not applied with load and when the screw body is applied with load of different magnitudes and corresponding different load values; and under the working state of the cable clamp screw, the terminal controller monitors the locking force of the screw body in actual working according to the calibrated stress coefficient. The problem that various cable clamp screw stress detection methods adopted in the prior art cannot be applied in practice or have large test errors is solved.
Description
Technical Field
The utility model relates to the field of construction of suspension bridges, in particular to an intelligent force measuring cable clamp screw, a stress calibration device and a locking force monitoring system.
Background
The slipping of the rope clip, which is one of the main structural members of the suspension bridge, is the most serious problem faced by the rope clip, and most of the slipping of the rope clip is caused by the shortage of screw tightening force. The cable clamp screw of the suspension bridge is generally made of 40Cr materials, the working stress of the cable clamp screw is generally about 400MPa, the effective anchoring length of the cable clamp screw is generally within 800mm, and the cable clamp screw is generally constructed by a method of tightening nuts after tensioning by a tensioning mechanism. Even 0.1mm of nut retraction in this case will result in a stress loss of at least 6%.
The cable clamp screw of the suspension bridge can generate obvious stress loss in the construction and operation processes, and the stress loss can possibly lead to the slippage of the cable clamp so as to influence the safety of a bridge deck system of the suspension bridge, however, the stress level of the cable clamp screw cannot be accurately judged in the construction process or operation maintenance due to the limitation of a detection means.
It has been found in the country that the cable grip slips and the boom tilts due to insufficient tightening force of the cable grip screw. In recent years, a plurality of serious bridge accidents occur in China successively. These incidents are related to a number of factors, among which failure to effectively monitor the bridge components in the later operation and failure to maintain in time against risk potential are one of the important reasons. These accidents with eye contact and surprise have led to a growing concern for risk monitoring, loss feedback, follow-up of counter measures, etc. of modern bridges. At present, the intelligent and digital detection of bridge structures has become a hotspot for research in academia and engineering circles at home and abroad.
The current common detection method for the stress of the cable clamp screw comprises a vibration method and a pulling method.
Vibration method: from the dynamics theory of vibration, it is known that a change in the stress of the screw will cause a change in its natural frequency, and therefore, it is theoretically possible to detect the stress of the screw by measuring the vibration frequency of the screw after, for example, knocking the screw. However, in practice, since the vibration frequency is easily affected by the nut anchoring system, the accuracy of the testing method for the suspension cable screw is poor, and the testing method cannot be used for detecting the screw stress in practical engineering.
Extraction method: is a traditional method for detecting the anchoring stress of the screw rod. Typically by mechanically pulling the screw with a tensioning mechanism, the nut will unload and loosen when the load applied by the tensioning mechanism and the internal force of the screw are equal. In the field of bridge engineering, the method is often used for detecting the cable force of a stay cable and the anchoring stress of a vertical prestressed tendon. However, for a short screw system such as a suspension bridge cable clamp screw, due to the fact that the length of the screw is short, when the load of a tensioning mechanism is equal to that of the screw, the nut is often not completely separated due to roughness and the like, loosening cannot be detected, and even if a high-precision dial indicator is adopted to detect displacement of the screw and a backing plate, the working condition is difficult to accurately capture. Through testing, the method can generate 10-20% of testing error in the stress test of the suspension bridge screw.
Disclosure of Invention
The utility model mainly aims to provide an intelligent force measuring cable clamp screw, a stress calibration device and a locking force monitoring system, which can calibrate actual stress influence parameters of the cable clamp screw, thereby effectively reducing the influence of the stress-free length tolerance and the stress-free sound velocity deviation of the screw on the screw stress detection, and at least solving the problems that various cable clamp screw stress detection methods adopted in the prior art cannot be applied in practice or have larger test errors.
To achieve the above object, according to a first aspect of the present utility model, there is provided an intelligent force measuring cable clamp screw comprising: the screw rod body, two groups of anti-loosening washers and two locknuts, the two groups of anti-loosening washers are correspondingly arranged at two ends of the screw rod body and are abutted with the cable clamps, and the two locknuts are correspondingly arranged at the outer sides of the two groups of anti-loosening washers; an ultrasonic sensor disposed at the first end of the screw body; the terminal controller is arranged at the first end of the screw body and is connected with the ultrasonic sensor; wherein the ultrasonic sensor emits ultrasonic signals along the axial direction of the screw body and receives ultrasonic signals reflected back by the second end of the screw body; the terminal controller is used for calibrating the stress coefficient of the screw body according to the reflection time of the ultrasonic signal along the screw body when the screw body is not applied with load and when the screw body is applied with load of different magnitudes and corresponding different load values; the terminal controller is also used for monitoring whether the locking force of the screw body in actual working is smaller than a preset value according to the calibrated stress coefficient.
Further, the ultrasonic sensor is arranged at a position of the screw body corresponding to the outer side of one lock nut.
Further, intelligent dynamometry cable clamp screw rod still includes: the connecting socket is arranged at the end part of the first end of the screw body and is connected with the ultrasonic sensor; the signal wire of the terminal controller is detachably connected with the ultrasonic sensor through the connecting socket.
Further, intelligent dynamometry cable clamp screw rod still includes: the two protective nuts are sleeved at the outermost sides of the two ends of the screw body; wherein the ultrasonic sensor and the connection socket are located between a protective nut and a lock nut.
According to a second aspect of the utility model, a cable clamp screw stress calibration device is provided, and the cable clamp screw stress calibration device is used for calibrating the stress coefficient of the intelligent force measuring cable clamp screw.
Further, the cable clamp screw stress calibration device comprises: the positioning bracket is fixedly arranged on the cable clamp along the axial direction of a screw body of the intelligent force measuring cable clamp screw; the tension sensor is arranged at the first end of the positioning bracket and is in locking connection with the first end of the screw body; the tensioning mechanism is arranged at the second end of the positioning bracket and is in locking connection with the second end of the screw body; the tension mechanism is used for stretching the screw body in a direction away from the tension sensor, and the tension sensor is used for monitoring the load value born by the screw body.
Further, the positioning bracket includes: the first positioning plate, the second positioning plate and the third positioning plate are mutually spaced along the axial direction of the screw body and are arranged in parallel; the center parts of the first positioning plate, the second positioning plate and the third positioning plate are provided with through holes, and the screw body passes through the through holes of the first positioning plate and the second positioning plate; the transverse connecting rods are arranged at intervals around the circumference of the screw body and are arranged in parallel, and each transverse connecting rod extends along the axial direction of the screw body so as to sequentially and fixedly connect the first positioning plate, the second positioning plate and the third positioning plate; the tension sensor is fixedly arranged on the outer side of the first positioning plate, and the tension mechanism is arranged on the outer side of the third positioning plate.
Further, the tensioning mechanism includes: the jack is fixedly arranged on the outer side of the third positioning plate; the first end of the extension screw rod penetrates through the through hole of the third positioning plate to be fixedly connected with the second end of the screw rod body, and the second end of the extension screw rod is fixedly connected with the piston end of the jack; wherein, the jack stretches the screw body through the extension screw rod when working.
According to a third aspect of the present utility model, there is provided a cable grip screw locking force monitoring system comprising: the cable clamp screw is the intelligent force measuring cable clamp screw; the plurality of cable clamp screws are arranged on a plurality of cable clamps of the suspension bridge in a one-to-one correspondence mode according to a preset sequence; the backstage monitoring unit is connected with the plurality of cable clamp screws to receive locking force data transmitted by the plurality of cable clamp screws during actual working.
The intelligent force measuring cable clamp screw rod comprises a screw rod body, two groups of locking washers, two locking nuts, an ultrasonic sensor and a terminal controller, wherein the two groups of locking washers are correspondingly arranged at two ends of the screw rod body and are abutted with cable clamps, and the two locking nuts are correspondingly arranged at the outer sides of the two groups of locking washers; the ultrasonic sensor is arranged at the first end of the screw body; the terminal controller is arranged at the first end of the screw body and is connected with the ultrasonic sensor; the ultrasonic sensor transmits ultrasonic signals along the axial direction of the screw body and receives ultrasonic signals reflected back by the second end of the screw body; the terminal controller is used for calibrating the stress coefficient of the screw body according to the reflection time of the ultrasonic signal along the screw body when the screw body is not applied with load and when the screw body is applied with load of different magnitudes and corresponding different load values when the cable clamp screw is not in a working state; the terminal controller is also used for monitoring whether the locking force of the screw body in actual working is smaller than a preset value according to the calibrated stress coefficient when the cable clamp screw is in the working state. Therefore, the locking state of the cable clamp screw can be detected and monitored, the risk hidden danger of the stress loss of the cable clamp screw can be mastered in real time, and corresponding precaution measures are taken according to the risk early warning, so that the operation safety of the bridge deck system of the whole suspension bridge is ensured. The problem that various cable clamp screw stress detection methods adopted in the prior art cannot be applied in practice or have large test errors is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic view of an alternative construction of an intelligent force measuring cable grip screw according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an alternative cable clamp screw stress calibration device according to an embodiment of the utility model;
fig. 3 is a block diagram of an alternative cable clamp screw locking force monitoring system according to an embodiment of the present utility model.
Wherein the above figures include the following reference numerals:
10. a screw body; 20. a lock washer; 30. a lock nut; 40. a cable clip; 50. an ultrasonic sensor; 60. a terminal controller; 70. a connection socket; 80. a protective nut; 90. a positioning bracket; 91. a first positioning plate; 92. a second positioning plate; 93. a third positioning plate; 94. a transverse connecting rod; 100. a tension sensor; 110. a tensioning mechanism; 111. a jack; 112. lengthening the screw rod; 113. a coupling nut; 114. a backing plate; 115. a fixed end nut; 120. a cable clamp screw; 130. and a background monitoring unit.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
The intelligent force measuring cable clamp screw of the first embodiment of the utility model, as shown in fig. 1, comprises a screw body 10, two groups of anti-loosening washers 20, two lock nuts 30, an ultrasonic sensor 50 and a terminal controller 60, wherein the two groups of anti-loosening washers 20 are correspondingly arranged at two ends of the screw body 10 and are abutted with cable clamps 40, and the two lock nuts 30 are correspondingly arranged at the outer sides of the two groups of anti-loosening washers 20; the ultrasonic sensor 50 is disposed at a first end of the screw body 10; the terminal controller 60 is disposed at a first end of the screw body 10 and is connected to the ultrasonic sensor 50; the ultrasonic sensor 50 emits an ultrasonic signal along the axial direction of the screw body 10 and receives an ultrasonic signal reflected back from the second end of the screw body 10; the terminal controller 60 is configured to calibrate a stress coefficient of the screw body 10 according to a reflection time of the ultrasonic signal along the screw body 10 when the screw body 10 is not loaded and when different loads are applied, and corresponding different load values when the cable clamp screw is not in a working state; the terminal controller 60 is further configured to monitor whether the locking force of the screw body 10 during actual operation is less than a preset value according to the calibrated stress coefficient when the cable clamp screw is in an operating state. Therefore, the locking state of the cable clamp screw can be detected and monitored, the risk hidden danger of the stress loss of the cable clamp screw can be mastered in real time, and corresponding precaution measures are taken according to the risk early warning, so that the operation safety of the bridge deck system of the whole suspension bridge is ensured. The problem that various cable clamp screw stress detection methods adopted in the prior art cannot be applied in practice or have large test errors is solved.
In particular, the ultrasonic sensor 50 is disposed at a position of the screw body 10 corresponding to the outer side of one lock nut 30 and is located on the center line of the screw body 10. The terminal controller 60 is powered by a battery.
Further, the intelligent force measuring cable clamp screw further comprises a connecting socket 70, wherein the connecting socket 70 is arranged at the end part of the first end of the screw body 10 and is connected with the ultrasonic sensor 50; the signal input and output end of the terminal controller 60 is connected with a signal wire, the other end of the signal wire is provided with a connecting plug, and the signal input and output end of the terminal controller 60 is spliced with the connecting socket 70 through the connecting plug, so that the terminal controller 60 and the ultrasonic sensor 50 realize signal transmission and communication.
Further, the intelligent force measuring cable clamp screw also comprises two protective nuts 80, and the two protective nuts 80 are sleeved on the outermost sides of the two ends of the screw body 10; the ultrasonic sensor 50 and the connection socket 70 are located between the guard nut 80 and the lock nut 30 at the first end; the protective nut 80 can protect both the ultrasonic sensor 50 and the connection socket 70.
The second embodiment of the utility model provides a cable clamp screw stress calibration device which is used for calibrating the stress coefficient of the intelligent force measuring cable clamp screw of the embodiment.
Specifically, as shown in fig. 2, the cable clamp screw stress calibration device comprises a positioning bracket 90, a tension sensor 100 and a tensioning mechanism 110, wherein the positioning bracket 90 is fixedly arranged on the cable clamp 40 along the axial direction of a screw body 10 of the intelligent force measuring cable clamp screw; the tension sensor 100 is arranged at the first end of the positioning bracket 90, and the tension sensor 100 is in locking connection with the first end of the screw body 10; the tensioning mechanism 110 is arranged at the second end of the positioning bracket 90, and the tensioning mechanism 110 is in locking connection with the second end of the screw body 10; the tensioning mechanism 110 is used for tensioning the screw body 10 in a direction away from the tension sensor 100, and the tension sensor 100 is used for monitoring the magnitude of the load value born by the screw body 10.
Specifically, the positioning bracket 90 includes a first positioning plate 91, a second positioning plate 92, a third positioning plate 93 and a transverse connecting rod 94, optionally, the first positioning plate 91, the second positioning plate 92 and the third positioning plate 93 are all disc-shaped structures, and the first positioning plate 91, the second positioning plate 92 and the third positioning plate 93 are mutually spaced along the axial direction of the screw body 10 and are arranged in parallel; the center parts of the first positioning plate 91, the second positioning plate 92 and the third positioning plate 93 are provided with through holes, and the screw body 10 movably passes through the through holes of the first positioning plate 91 and the second positioning plate 92; the transverse connecting rods 94 are arranged at intervals and in parallel around the circumference of the screw body 10, and each transverse connecting rod 94 extends along the axial direction of the screw body 10 to sequentially and fixedly connect the first positioning plate 91, the second positioning plate 92 and the third positioning plate 93; the tension sensor 100 is fixedly disposed outside the first positioning plate 91, and the tension mechanism 110 is disposed outside the third positioning plate 93.
Further, the tensioning mechanism 110 includes a jack 111 and an extension screw 112, the jack 111 being fixedly disposed outside the third positioning plate 93; the first end of the extension screw 112 movably penetrates through the through hole of the third positioning plate 93 and is fixedly connected with the second end of the screw body 10 in a locking way through the connecting nut 113, and the second end of the extension screw 112 is connected with the piston end of the jack 111; alternatively, the tension sensor 100 and the jack 111 are both in cylindrical structures, the center part is provided with a through cavity structure, the first end of the screw body 10 passes through the cavity structure of the tension sensor 100 and is connected with the outer side end of the tension sensor 100 through the backing plate 114 and the fixed end nut 115; the second end of the extension screw 112 passes through the cavity structure of the jack 111 and is connected with the piston end of the jack 111 through a backing plate 114 and a fixed end nut 115; when the jack 111 works, the piston end of the jack is jacked outwards, so that a certain tensile force is applied to the screw body 10 through the lengthened screw rod 112, and the screw body 10 axially presses the tension sensor 100, so that the tension sensor 100 can monitor the tensile force in real time.
In the process of stress calibration, an ultrasonic sensor 50 and a terminal controller 60 of the intelligent force measuring cable clamp screw are combined, and based on the principle of acoustic elasticity, the accurate measurement of the locking force of the bolt is realized by measuring the propagation time of ultrasonic waves between two sections of the screw body 10.
Firstly, before the jack begins to work, namely in an unstressed state of the screw body 10, the ultrasonic sensor 50 monitors the propagation time T0 of ultrasonic waves between two sections of the screw body 10;
secondly, a jack 111 is used for applying a load P to the screw body 10, the tension sensor 100 monitors and records the magnitude of the load P, and meanwhile, the ultrasonic sensor 50 monitors the propagation time Tsigma of ultrasonic waves between two sections of the screw body 10 under different load values;
finally, the load P born by the screw body 10 and the difference between the propagation time Tsigma and the propagation time T0 between two sections of the screw body 10 are drawn into a curve; and the stress coefficient K of the screw body 10 is obtained according to the curves P to (T sigma-T0), so that the calibration of the stress coefficient is realized.
When the screw body 10 is in a working state, the terminal controller 60 stores the propagation time T0 of the screw body 10 under the condition of not bearing load, and the locking force generated after the screw body 10 locks the cable clamp is F; the ultrasonic sensor 50 continuously transmits and receives ultrasonic signals and monitors the actual propagation time tssigma of the ultrasonic signals between two sections of the screw body 10 in real time, so that the actual locking force F of the screw body 10 can be calculated according to the formula f=k (tssigma-T0); the terminal controller 60 records the actually monitored locking force F, and when the locking force F deviates too much from the predetermined locking force, the terminal controller 60 may generate an alarm signal.
According to a third embodiment of the present utility model, there is provided a system for monitoring locking force of a cable clamp screw, as shown in fig. 3, including a cable clamp screw 120 and a background monitoring unit 130, where the cable clamp screw 120 is an intelligent force measuring cable clamp screw of the above embodiment; the plurality of cable clamp screws 120 are arranged, and the plurality of cable clamp screws 120 are correspondingly arranged on the plurality of cable clamps 40 of the suspension bridge one by one according to a preset sequence; the background monitoring unit 130 is connected with the terminal controllers 60 of the plurality of cable clamp screws 120 in a wireless communication manner, so that locking force data sent by the plurality of terminal controllers 60 when the cable clamp screws 120 actually work can be received. The locking force data can be uploaded to the cloud by the background monitoring unit 130, and the locking force data of different cable clamp screws 120 can be queried at any time by terminal equipment such as a smart phone; the background monitoring unit 130 can automatically monitor the abnormality of the locking force data of any one cable clamp screw 120 and send out an early warning signal, and the cable clamp screw 120 with the locking force being lack is manually screwed up by adopting corresponding precautions according to the early warning signal.
The cable clamp screw locking force monitoring system of the embodiment is applied to intelligent force measurement of the cable clamp screw of the suspension bridge to solve the problem of testing the fastening force of the cable clamp screw of the suspension bridge. The method can be further applied to construction tensioning and operation stress monitoring of similar vertical prestressed high-strength steel bars, the tensioning accuracy is ensured, basic data are provided for the detection of the stress loss after tensioning, and hidden danger can be timely treated. The method organically combines intellectualization and digitalization, and has wide application prospect in the aspects of bridge construction, building construction, monitoring, maintenance and the like.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. An intelligent force measuring cable clamp screw, comprising:
the anti-loosening device comprises a screw body (10), two groups of anti-loosening washers (20) and two lock nuts (30), wherein the two groups of anti-loosening washers (20) are correspondingly arranged at two ends of the screw body (10) and are abutted with a cable clamp (40), and the two lock nuts (30) are correspondingly arranged at the outer sides of the two groups of anti-loosening washers (20);
an ultrasonic sensor (50) provided at a first end of the screw body (10);
a terminal controller (60) provided at a first end of the screw body (10) and connected to the ultrasonic sensor (50);
wherein the ultrasonic sensor (50) transmits an ultrasonic signal along the axial direction of the screw body (10) and receives an ultrasonic signal reflected back from the second end of the screw body (10); the terminal controller (60) is used for calibrating the stress coefficient of the screw body (10) according to the reflection time of the ultrasonic signal along the screw body (10) when the screw body (10) is not applied with load and when the screw body is applied with load of different magnitudes and corresponding different load values; the terminal controller (60) is also used for monitoring whether the locking force of the screw body (10) in actual working is smaller than a preset value according to the calibrated stress coefficient.
2. Intelligent force measuring cable clamp screw according to claim 1, characterized in that the ultrasonic sensor (50) is arranged at a position of the screw body (10) corresponding to the outer side of one of the lock nuts (30).
3. The intelligent force-measuring cable clamp screw of claim 2, further comprising:
a connection socket (70), wherein the connection socket (70) is arranged at the end part of the first end of the screw body (10) and is connected with the ultrasonic sensor (50);
wherein, the signal line of the terminal controller (60) is detachably connected with the ultrasonic sensor (50) through the connecting socket (70).
4. The intelligent load cable clamp screw of claim 3, further comprising:
two protective nuts (80) sleeved on the outermost sides of the two ends of the screw body (10);
wherein the ultrasonic sensor (50) and the connection socket (70) are located between one of the shielding nuts (80) and one of the lock nuts (30).
5. A cable clamp screw stress calibration device, characterized in that the cable clamp screw stress calibration device is used for calibrating the stress coefficient of the intelligent force measuring cable clamp screw according to any one of claims 1 to 4.
6. The cable grip screw stress calibration device of claim 5, wherein the cable grip screw stress calibration device comprises:
the positioning bracket (90) is fixedly arranged on the cable clamp (40) along the axial direction of the screw body (10) of the intelligent force measuring cable clamp screw;
the tension sensor (100) is arranged at the first end of the positioning bracket (90), and the tension sensor (100) is in locking connection with the first end of the screw body (10);
the tensioning mechanism (110) is arranged at the second end of the positioning bracket (90), and the tensioning mechanism (110) is in locking connection with the second end of the screw body (10);
the tension mechanism (110) is used for tensioning the screw body (10) in a direction away from the tension sensor (100), and the tension sensor (100) is used for monitoring the magnitude of a load value born by the screw body (10).
7. The cable clamp screw stress calibration device of claim 6, wherein the positioning bracket (90) comprises:
a first positioning plate (91), a second positioning plate (92) and a third positioning plate (93), wherein the first positioning plate (91), the second positioning plate (92) and the third positioning plate (93) are mutually spaced along the axial direction of the screw body (10) and are arranged in parallel; the center parts of the first positioning plate (91), the second positioning plate (92) and the third positioning plate (93) are provided with through holes, and the screw body (10) penetrates through the through holes of the first positioning plate (91) and the second positioning plate (92);
the transverse connecting rods (94) are arranged at intervals around the circumference of the screw body (10) in parallel, and each transverse connecting rod (94) extends along the axial direction of the screw body (10) so as to sequentially and fixedly connect the first positioning plate (91), the second positioning plate (92) and the third positioning plate (93);
the tension sensor (100) is fixedly arranged on the outer side of the first positioning plate (91), and the tension mechanism (110) is arranged on the outer side of the third positioning plate (93).
8. The cable clamp screw stress calibration device of claim 7, wherein the tensioning mechanism (110) comprises:
a jack (111) fixedly arranged on the outer side of the third positioning plate (93);
the first end of the extension screw rod (112) penetrates through the through hole of the third positioning plate (93) to be fixedly connected with the second end of the screw rod body (10), and the second end of the extension screw rod (112) is fixedly connected with the piston end of the jack (111);
wherein, the jack (111) stretches the screw body (10) through the lengthened screw rod (112) when working.
9. A cable grip screw locking force monitoring system, comprising:
a cable grip screw (120), the cable grip screw (120) being an intelligent force measuring cable grip screw as claimed in any one of claims 1 to 4; the plurality of cable clamp screws (120) are arranged, and the plurality of cable clamp screws (120) are correspondingly arranged on the plurality of cable clamps (40) of the suspension bridge one by one according to a preset sequence;
the backstage monitoring unit (130), the backstage monitoring unit (130) is connected with a plurality of cable clamp screws (120) so as to receive locking force data transmitted by the cable clamp screws (120) in actual working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320554356.4U CN219297982U (en) | 2023-03-21 | 2023-03-21 | Intelligent force measuring cable clamp screw, stress calibration device and locking force monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320554356.4U CN219297982U (en) | 2023-03-21 | 2023-03-21 | Intelligent force measuring cable clamp screw, stress calibration device and locking force monitoring system |
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| Publication Number | Publication Date |
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| CN219297982U true CN219297982U (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320554356.4U Active CN219297982U (en) | 2023-03-21 | 2023-03-21 | Intelligent force measuring cable clamp screw, stress calibration device and locking force monitoring system |
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| Country | Link |
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| CN (1) | CN219297982U (en) |
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2023
- 2023-03-21 CN CN202320554356.4U patent/CN219297982U/en active Active
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