A sensor for acquiring stress data of transmission towers

Abstract

This utility model relates to the field of power transmission tower technology, specifically a stress data acquisition sensor for power transmission towers. It includes a base, a strain gauge sensor, a data cable, and a protective device. The strain gauge sensor is fixed to the surface of the base, and the data cable is fixedly connected to one end of the strain gauge. The protective device is located on the surface of the base and includes a rod fixedly connected to the base. A circular sleeve is provided on the upper surface of the strain gauge sensor, and locking blocks are fixedly connected to both ends of the sleeve. The sleeve fits onto the strain gauge sensor. A through groove is provided on the lower surface of the locking blocks, and the rod is inserted into the locking blocks. This utility model provides physical protection for the strain gauge sensor by fitting the circular sleeve around it. The rod, inserted into the locking blocks, works in conjunction with a torsion spring to drive a clamping plate for secure fixation. This effectively blocks erosion from wind, rain, and sand, reducing damage to the sensor from external impacts. It is also easy to install and remove; the circular sleeve can be removed by pressing the clamping plate, facilitating maintenance without affecting the normal operation of the sensor and ensuring stable data acquisition.

Description

Technical Field

[0001] This utility model relates to the field of power transmission tower technology, and in particular to a power transmission tower stress data acquisition sensor. Background Technology

[0002] Transmission tower stress data acquisition sensors are devices used to monitor stress changes in the transmission tower structure. They are typically installed in critical parts of the transmission tower, such as stress-sensitive areas like the tower waist. By sensing the strain generated by the stress on the tower body, they convert it into measurable signals such as electrical or optical signals, thereby acquiring stress data. Common types include fiber optic grating sensors, which have advantages such as strong resistance to electromagnetic interference and low transmission loss over long distances, as well as strain gauge sensors, which have high sensitivity and accuracy. These sensors provide a guarantee for the safe operation of transmission towers, enabling timely detection of abnormal stress in the tower body, facilitating maintenance personnel to take measures to prevent accidents such as tower tilting and collapse.

[0003] However, the existing sensors are installed in an exposed state and lack protection. They are susceptible to outdoor wind, rain, and dust, which can cause internal components to become damp and corroded, affecting the accuracy and stability of stress data acquisition. This is not conducive to later maintenance. Dust cover and component aging are difficult to observe visually, and frequent disassembly during maintenance can exacerbate damage. Overall, this reduces the reliability and continuity of stress monitoring on transmission towers. Utility Model Content

[0004] The purpose of this invention is to address the problems in existing technologies where sensors are installed exposed and lack protection, making them susceptible to outdoor wind, rain, and dust, which can cause internal components to become damp and corroded, affecting the accuracy and stability of stress data acquisition, hindering later maintenance, making it difficult to visually observe dust cover and component aging, and requiring frequent disassembly during maintenance, which can exacerbate damage and reduce the overall reliability and continuity of transmission tower stress monitoring. Therefore, this invention proposes a transmission tower stress data acquisition sensor.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a transmission tower stress data acquisition sensor, including a base, a strain gauge sensor, a data cable, and a protective device. The strain gauge sensor is fixed on the surface of the base, the data cable is fixedly connected to one end of the strain gauge, and the protective device is disposed on the surface of the base. The protective device includes a plug rod, which is fixedly connected to the base. A circular sleeve is provided on the upper surface of the strain gauge sensor, and locking blocks are fixedly connected to both ends of the circular sleeve. The circular sleeve is fitted onto the strain gauge sensor. A through groove is opened on the lower surface of the locking block, and the plug rod is inserted into the locking block. A circular block is fixedly connected to one end of the base, and a rotating rod is fixedly connected to the upper surface of the circular block. The rotating rod engages with the locking block. By setting up the protective device, the circular sleeve fits over the strain gauge sensor to form physical protection. With the plug rod inserted into the locking block and a torsion spring driving the clamping plate to hold and fix it, it can effectively block the erosion of wind, rain, sand and dust, reduce the damage to the sensor caused by external objects, and facilitate installation and removal. The circular sleeve can be removed by pressing the clamping plate, which is convenient for maintenance and does not affect the normal operation of the sensor, ensuring the stability of data acquisition.

[0006] Preferably, a torsion spring is fitted on the surface of the rotating rod, and the two ends of the torsion spring are fixedly connected to the clamping plate and the circular block, respectively. By setting the torsion spring, its own elastic deformation generates a continuous elastic force to squeeze the clamping plate, so that the clamping plate and the clamping block are tightly clamped and fixed, thereby ensuring that the circular sleeve is securely fitted on the outside of the sensor.

[0007] Preferably, there are two clamping plates, which are symmetrically arranged. By setting the clamping plates, after the circular sleeve of the protective device is fitted onto the strain gauge sensor, the elastic force of the torsion spring squeezes the clamping plates and the locking block to tightly clamp them, thereby firmly fixing the circular sleeve to the outside of the strain gauge sensor, ensuring that the circular sleeve will not loosen or fall off in the outdoor environment, and continuously and reliably protecting the strain gauge sensor.

[0008] Preferably, a clamping assembly is provided at one end of the base near the data cable. The clamping assembly includes a lower clamp, which is fixedly connected to the base. An arc-shaped groove is formed in the center of the lower clamp, and a guide rod is fixedly connected to the upper surface of the lower clamp. By setting the clamping assembly, the upper and lower clamps are fastened together with a screw, which can firmly fix the data cable, reduce the loosening of the connector caused by pulling, reduce data transmission interruption or signal instability, ensure continuous and reliable transmission of stress data, and improve the overall operational stability of the device.

[0009] Preferably, there are two guide rods, which are arranged symmetrically.

[0010] Preferably, the guide rod has an upper clamping sleeve slidably connected to its surface. The upper and lower clamping sleeves are symmetrically arranged. By setting the lower clamping sleeve, it cooperates with the upper clamping sleeve to form a clamping structure, which serves as a fixed base for clamping the data cable. When the upper clamping sleeve is pressed down and tightened with the screw, the lower and upper clamping sleeves together form a stable clamping of the data cable. The close fit with the upper clamping sleeve restricts the displacement of the data cable, preventing the data cable from loosening or falling off due to external force pulling, vibration, etc.

[0011] Preferably, one end of the upper clamping sleeve has a threaded hole, and a lead screw is threadedly connected to one end of the upper clamping sleeve. One end of the lower clamping sleeve has a slot, and the lead screw is inserted into the slot at one end of the lower clamping sleeve. By setting the lead screw, the clamping state of the upper and lower clamping sleeves is further tightened, the fixing force of the data cable is enhanced, and the data cable is prevented from loosening, shifting or being pulled under the influence of the sensor operation or external environment. This prevents problems such as data transmission interruption and signal distortion caused by unstable data cable connection, and ensures the continuity and reliability of stress data acquisition.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting a protective device, after the strain gauge sensor is installed on the transmission tower, the circular sleeve is fitted onto the strain gauge sensor. At this time, the insertion rod is inserted into the clamping block, and then the clamping plate is released. The torsion spring loses its restraint and generates elastic force to squeeze the clamping plate and the clamping block to fix it. At this time, the circular sleeve protects the strain gauge sensor. When the strain gauge sensor needs maintenance, the clamping plate is squeezed to rotate and disengage from the clamping block, and the circular sleeve can be removed. By setting a protective device, the circular sleeve fitted onto the strain gauge sensor forms physical protection. With the insertion rod into the clamping block and the torsion spring driving the clamping plate to fix it, it can effectively block the erosion of wind, rain, sand and dust, reduce the damage to the sensor caused by external collisions, and at the same time, it is convenient to install and remove. The circular sleeve can be removed by pressing the clamping plate, which is convenient for maintenance and does not affect the normal operation of the sensor, ensuring the stability of data acquisition.

[0014] 2. In this utility model, by setting a clamping component, the data cable is passed between the upper and lower clamps. Then, the upper clamp is pressed down to clamp the data cable. Then, the screw is rotated and inserted into the lower clamp to fix the data cable. This reduces the gaps caused by pulling on the data cable and loosening of the connector. By setting a clamping component, the upper and lower clamps are fastened together with the screw, which can firmly fix the data cable, reduce the loosening of the connector caused by pulling, reduce data transmission interruption or signal instability, ensure continuous and reliable transmission of stress data, and improve the overall operational stability of the device. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a transmission tower stress data acquisition sensor is provided for this utility model;

[0016] Figure 2 This utility model provides a schematic diagram of the unfolded structure of a transmission tower stress data acquisition sensor;

[0017] Figure 3 This utility model provides a schematic diagram of the strain gauge sensor structure for a transmission tower stress data acquisition sensor;

[0018] Figure 4 A schematic diagram of the protective device structure for a transmission tower stress data acquisition sensor is provided for this utility model;

[0019] Figure 5 This invention provides a schematic diagram of the clamping assembly structure for a transmission tower stress data acquisition sensor.

[0020] Legend: 1. Base; 2. Strain gauge sensor; 3. Data cable; 4. Protective device; 41. Circular sleeve; 42. Clamping block; 43. Insert rod; 44. Clamping plate; 45. Circular block; 46. Rotating rod; 47. Torsion spring; 48. Clamping assembly; 481. Upper clamping sleeve; 482. Lower clamping sleeve; 483. Guide rod; 484. Lead screw. Detailed Implementation

[0021] Please see Figures 1-5 This utility model provides a technical solution: a transmission tower stress data acquisition sensor, including a base 1, a strain gauge sensor 2, a data line 3 and a protection device 4. The strain gauge sensor 2 is fixed on the surface of the base 1, the data line 3 is fixedly connected to one end of the strain gauge, and the protection device 4 is disposed on the surface of the base 1.

[0022] In this implementation scheme: the protective device 4 includes a rod 43, which is fixedly connected to the base 1. A circular sleeve 41 is provided on the upper surface of the strain gauge sensor 2. The two ends of the circular sleeve 41 are fixedly connected to the locking blocks 42. The circular sleeve 41 is fitted with the strain gauge sensor. A through groove is opened on the lower surface of the locking blocks 42. The rod 43 is inserted into the locking blocks 42. A circular block 45 is fixedly connected to one end of the base 1. A rotating rod 46 is fixedly connected to the upper surface of the circular block 45. The rotating rod 46 is engaged with the locking blocks 42. By setting the protective device 4, the circular sleeve 41 forms physical protection for the strain gauge sensor 2. With the help of the rod 43 inserted into the locking blocks 42 and the torsion spring 47 driving the clamping plate 44 to clamp and fix it, it can effectively block the erosion of wind, rain, sand and dust, reduce the damage of the sensor by the collision of foreign objects. At the same time, it is easy to install and remove. The circular sleeve 41 can be removed by pressing the clamping plate 44, which is convenient for maintenance and does not affect the normal operation of the sensor, ensuring the stability of data acquisition.

[0023] Specifically, a torsion spring 47 is fitted on the surface of the rotating rod 46. The two ends of the torsion spring 47 are fixedly connected to the clamping plate 44 and the circular block 45, respectively. By setting the torsion spring 47, its own elastic deformation generates a continuous elastic force to squeeze the clamping plate 44, so that the clamping plate 44 and the locking block 42 are tightly clamped and fixed, thereby ensuring that the circular sleeve 41 is securely fitted on the outside of the sensor.

[0024] Specifically, there are two clamping plates 44, which are symmetrically arranged. By setting the clamping plates 44, after the circular sleeve 41 of the protective device 4 is fitted onto the strain gauge sensor 2, the elastic force of the torsion spring 47 squeezes the clamping plates 44 and the locking block 42 to tightly clamp them, thereby firmly fixing the circular sleeve 41 to the outside of the strain gauge sensor 2, ensuring that the circular sleeve 41 will not loosen or fall off in the outdoor environment, and continuously and reliably protecting the strain gauge sensor 2.

[0025] Specifically, a clamping component 48 is provided at one end of the base 1 near the data cable 3. The clamping component 48 includes a lower clamp 482, which is fixedly connected to the base 1. An arc-shaped groove is provided in the center of the lower clamp 482, and a guide rod 483 is fixedly connected to the upper surface of the lower clamp 482. By setting the clamping component 48, the upper clamp 481 and the lower clamp 482 are fastened together with the screw 484, which can firmly fix the data cable 3, reduce the loosening of the connector caused by pulling, reduce data transmission interruption or signal instability, ensure continuous and reliable transmission of stress data, and improve the overall operational stability of the device.

[0026] Specifically, there are two guide rods 483, which are arranged symmetrically.

[0027] Specifically, the guide rod 483 has an upper sleeve 481 that is slidably connected to its surface, and the upper sleeve 481 and the lower sleeve 482 are symmetrically arranged.

[0028] In this embodiment: by setting a lower clamping sleeve 482, which cooperates with the upper clamping sleeve 481 to form a clamping structure, it serves as a fixed base for clamping the data cable 3. When the upper clamping sleeve 481 is pressed down and tightened with the screw 484, the lower clamping sleeve 482 and the upper clamping sleeve 481 together form a stable clamping of the data cable 3. The close fit with the upper clamping sleeve 481 restricts the displacement of the data cable 3, preventing the data cable 3 from loosening or falling off due to external force pulling, vibration, etc.

[0029] Specifically, one end of the upper sleeve 481 is provided with a threaded hole, and a lead screw 484 is threadedly connected to one end of the upper sleeve 481. One end of the lower sleeve 482 is provided with a slot, and the lead screw 484 is inserted into the slot at one end of the lower sleeve 482.

[0030] In this embodiment: by setting the lead screw 484, the clamping state of the upper clamp 481 and the lower clamp 482 is further tightened, which enhances the fixing force on the data line 3 and prevents the data line 3 from loosening, shifting or being pulled under the influence of the sensor or the external environment. This prevents problems such as data transmission interruption and signal distortion caused by unstable connection of the data line 3, and ensures the continuity and reliability of stress data acquisition.

[0031] Working principle: By setting up the protection device 4, after the strain gauge sensor 2 is installed on the transmission tower, the circular sleeve 41 is fitted onto the strain gauge sensor 2. At this time, the insertion rod 43 is inserted into the clamping block 42, and then the clamping plate 44 is released. The torsion spring 47 loses its restraint and generates elastic force to squeeze the clamping plate 44 and the clamping block 42 to clamp and fix it. At this time, the circular sleeve 41 protects the strain gauge sensor 2. When the strain gauge sensor 2 needs maintenance, the clamping plate 44 is squeezed to rotate and disengage from the clamping block 42, and the circular sleeve 41 can be removed. By setting up the protection device 4, the circular sleeve 41 fits onto the strain gauge sensor 2 to form physical protection. With the insertion rod 43 inserted into the clamping block 42 and the torsion spring 47 driving the clamping plate 44 to clamp and fix it, it can effectively block the erosion of wind, rain and sand, reduce the damage of the sensor by external object collisions, and at the same time, it is easy to install and remove. The circular sleeve 41 can be removed by pressing the clamping plate 44, which is convenient for maintenance and does not affect the normal operation of the sensor, ensuring the stability of data acquisition.

[0032] By setting the clamping component 48, the data cable 3 is passed between the upper clamp 481 and the lower clamp 482. Then, the upper clamp 481 is pressed down to clamp the data cable 3. Then, the lead screw 484 is rotated and inserted into the lower clamp 482 to fix the data cable 3. This reduces the possibility of the data cable 3 being pulled and the connector becoming loose. By setting the clamping component 48, the upper clamp 481 and the lower clamp 482 are fastened together with the lead screw 484, which can firmly fix the data cable 3, reduce the loosening of the connector caused by pulling, reduce data transmission interruption or signal instability, ensure continuous and reliable transmission of stress data, and improve the overall operational stability of the device.

Claims

1. A transmission tower stress data acquisition sensor, comprising a base (1), a strain gauge sensor (2), a data cable (3), and a protection device (4), characterized in that: The strain gauge sensor (2) is fixed on the surface of the base (1). The data line (3) is fixedly connected to one end of the strain gauge. The protection device (4) is set on the surface of the base (1). The protection device (4) includes a plug rod (43). The plug rod (43) is fixedly connected to the base (1). A circular sleeve (41) is provided on the upper surface of the strain gauge sensor (2). The two ends of the circular sleeve (41) are fixedly connected to the locking blocks (42). The circular sleeve (41) is fitted with the strain sensor. A through groove is opened on the lower surface of the locking block (42). The plug rod (43) is inserted into the locking block (42). A circular block (45) is fixedly connected to one end of the base (1). A rotating rod (46) is fixedly connected to the upper surface of the circular block (45). The rotating rod (46) is engaged with the locking block (42).

2. The transmission tower stress data acquisition sensor according to claim 1, characterized in that: A torsion spring (47) is fitted on the surface of the rotating rod (46), and the two ends of the torsion spring (47) are fixedly connected to the clamping plate (44) and the round block (45) respectively.

3. The transmission tower stress data acquisition sensor according to claim 2, characterized in that: There are two clamps (44), and the two clamps (44) are arranged symmetrically.

4. The transmission tower stress data acquisition sensor according to claim 1, characterized in that: The base (1) is provided with a clamping component (48) at one end near the data cable (3). The clamping component (48) includes a lower clamp (482), which is fixedly connected to the base (1). An arc groove is provided in the center of the lower clamp (482), and a guide rod (483) is fixedly connected to the upper surface of the lower clamp (482).

5. A transmission tower stress data acquisition sensor according to claim 4, characterized in that: There are two guide rods (483), and the two guide rods (483) are arranged symmetrically.

6. A transmission tower stress data acquisition sensor according to claim 5, characterized in that: The guide rod (483) has an upper sleeve (481) slidably connected to its surface, and the upper sleeve (481) and the lower sleeve (482) are symmetrically arranged.

7. A transmission tower stress data acquisition sensor according to claim 6, characterized in that: One end of the upper sleeve (481) is provided with a threaded hole, and one end of the upper sleeve (481) is threadedly connected to a lead screw (484). One end of the lower sleeve (482) is provided with a slot, and the lead screw (484) is inserted into the slot at one end of the lower sleeve (482).

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